Imported Upstream version 1.1.0upstream/1.1.0

1582 files changed, 51457 insertions, 0 deletions

diff --git a/src/pal/tests/palsuite/c_runtime/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/CMakeLists.txt
new file mode 100644
index 0000000000..533454c285
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/CMakeLists.txt
@@ -0,0 +1,162 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(abs)
+add_subdirectory(acos)
+add_subdirectory(asin)
+add_subdirectory(atan)
+add_subdirectory(atan2)
+add_subdirectory(atof)
+add_subdirectory(atoi)
+add_subdirectory(atol)
+add_subdirectory(bsearch)
+add_subdirectory(ceil)
+add_subdirectory(cos)
+add_subdirectory(cosh)
+
+# TODO: make this test compile
+# add_subdirectory(ctime)
+
+add_subdirectory(errno)
+add_subdirectory(exit)
+add_subdirectory(exp)
+add_subdirectory(fabs)
+add_subdirectory(fabsf)
+add_subdirectory(fclose)
+add_subdirectory(feof)
+add_subdirectory(ferror)
+add_subdirectory(fflush)
+add_subdirectory(fgets)
+add_subdirectory(floor)
+add_subdirectory(fmod)
+add_subdirectory(fmodf)
+add_subdirectory(fopen)
+add_subdirectory(fprintf)
+add_subdirectory(fputs)
+add_subdirectory(fread)
+add_subdirectory(free)
+add_subdirectory(fseek)
+add_subdirectory(ftell)
+add_subdirectory(fwprintf)
+add_subdirectory(fwrite)
+add_subdirectory(getc)
+add_subdirectory(getenv)
+add_subdirectory(isalnum)
+add_subdirectory(isalpha)
+add_subdirectory(isdigit)
+add_subdirectory(islower)
+add_subdirectory(isprint)
+add_subdirectory(isspace)
+add_subdirectory(isupper)
+add_subdirectory(iswdigit)
+add_subdirectory(iswspace)
+add_subdirectory(iswupper)
+add_subdirectory(iswxdigit)
+add_subdirectory(isxdigit)
+add_subdirectory(labs)
+add_subdirectory(llabs)
+add_subdirectory(localtime)
+add_subdirectory(log)
+add_subdirectory(log10)
+add_subdirectory(malloc)
+add_subdirectory(memchr)
+add_subdirectory(memcmp)
+add_subdirectory(memcpy)
+add_subdirectory(memmove)
+add_subdirectory(memset)
+add_subdirectory(modf)
+add_subdirectory(modff)
+add_subdirectory(pow)
+add_subdirectory(printf)
+add_subdirectory(qsort)
+add_subdirectory(rand_srand)
+add_subdirectory(realloc)
+add_subdirectory(sin)
+add_subdirectory(sinh)
+add_subdirectory(sprintf)
+add_subdirectory(sqrt)
+add_subdirectory(sscanf)
+add_subdirectory(strcat)
+add_subdirectory(strchr)
+add_subdirectory(strcmp)
+add_subdirectory(strcpy)
+add_subdirectory(strcspn)
+add_subdirectory(strlen)
+add_subdirectory(strncat)
+add_subdirectory(strncmp)
+add_subdirectory(strncpy)
+add_subdirectory(strpbrk)
+add_subdirectory(strrchr)
+add_subdirectory(strspn)
+add_subdirectory(strstr)
+add_subdirectory(strtod)
+add_subdirectory(strtok)
+add_subdirectory(strtoul)
+add_subdirectory(swprintf)
+add_subdirectory(swscanf)
+add_subdirectory(tan)
+add_subdirectory(tanh)
+add_subdirectory(time)
+add_subdirectory(tolower)
+add_subdirectory(toupper)
+add_subdirectory(towlower)
+add_subdirectory(towupper)
+add_subdirectory(ungetc)
+add_subdirectory(vfprintf)
+add_subdirectory(vprintf)
+add_subdirectory(vsprintf)
+add_subdirectory(vswprintf)
+add_subdirectory(wcscat)
+add_subdirectory(wcschr)
+add_subdirectory(wcscmp)
+add_subdirectory(wcscpy)
+add_subdirectory(wcslen)
+add_subdirectory(wcsncat)
+add_subdirectory(wcsncmp)
+add_subdirectory(wcsncpy)
+add_subdirectory(wcspbrk)
+add_subdirectory(wcsrchr)
+add_subdirectory(wcsstr)
+add_subdirectory(wcstod)
+add_subdirectory(wcstok)
+add_subdirectory(wcstol)
+add_subdirectory(wcstoul)
+add_subdirectory(wprintf)
+add_subdirectory(_alloca)
+add_subdirectory(_ecvt)
+add_subdirectory(_fdopen)
+add_subdirectory(_finite)
+add_subdirectory(_fullpath)
+
+# TODO: make this test compile
+# add_subdirectory(_gcvt)
+
+add_subdirectory(_getw)
+add_subdirectory(_isnan)
+add_subdirectory(_itow)
+add_subdirectory(_makepath)
+add_subdirectory(_mbsdec)
+add_subdirectory(_mbsinc)
+add_subdirectory(_mbslen)
+add_subdirectory(_mbsninc)
+add_subdirectory(_open_osfhandle)
+add_subdirectory(_putenv)
+add_subdirectory(_putw)
+add_subdirectory(_rotl)
+add_subdirectory(_rotr)
+add_subdirectory(_snprintf)
+add_subdirectory(_snwprintf)
+add_subdirectory(_splitpath)
+add_subdirectory(_stricmp)
+add_subdirectory(_strlwr)
+add_subdirectory(_strnicmp)
+add_subdirectory(_swab)
+add_subdirectory(_vsnprintf)
+add_subdirectory(_vsnwprintf)
+add_subdirectory(_wcsicmp)
+add_subdirectory(_wcslwr)
+add_subdirectory(_wcsnicmp)
+add_subdirectory(_wfopen)
+add_subdirectory(_wmakepath)
+add_subdirectory(_wsplitpath)
+add_subdirectory(_wtoi)
+add_subdirectory(__iscsym)
diff --git a/src/pal/tests/palsuite/c_runtime/__iscsym/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/__iscsym/CMakeLists.txt
new file mode 100644
index 0000000000..f6aa0cb2d9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/__iscsym/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+
diff --git a/src/pal/tests/palsuite/c_runtime/__iscsym/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/__iscsym/test1/CMakeLists.txt
new file mode 100644
index 0000000000..a283161f7d
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/__iscsym/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  __iscsym.c
+)
+
+add_executable(paltest_iscsym_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_iscsym_test1 coreclrpal)
+
+target_link_libraries(paltest_iscsym_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/__iscsym/test1/__iscsym.c b/src/pal/tests/palsuite/c_runtime/__iscsym/test1/__iscsym.c
new file mode 100644
index 0000000000..9c8f1d0f25
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/__iscsym/test1/__iscsym.c
@@ -0,0 +1,93 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*=============================================================
+**
+** Source: __iscsym.c
+**
+** Purpose: Positive test the __iscsym API.
+**          Call __iscsym to letter, digit and underscore
+**
+**
+**============================================================*/
+#include <palsuite.h>
+
+int __cdecl main(int argc, char *argv[])
+{
+    int err;
+    int index;
+    char non_letter_set[]=
+        {'~','`','!','@','#','$','%','^','&','*','(',')',')',
+            '-','+','=','|','\\',';',':','"','\'','<','>',
+            ',','.','?','/','\0'};
+    char errBuffer[200];
+
+    /*Initialize the PAL environment*/
+    err = PAL_Initialize(argc, argv);
+    if(0 != err)
+    {
+        return FAIL;
+    }
+  
+    /*To check if the parameter passed in is a character*/
+    for(index = 'a'; index <= 'z'; index++)
+    {
+        err = __iscsym(index);
+        if(0 == err)
+        {
+            Fail("\n__iscsym failed to recognize  a "
+                    "lower-case letter:%c!\n", index);
+        }
+    }
+    
+    /*To check if the parameter passed in is a character*/
+    for(index = 'A'; index <= 'Z'; index++)
+    {
+        err = __iscsym(index);
+        if(0 == err)
+        {
+            Fail("\n__iscsym failed to recognize an "
+                    "upper-case letter: %c!\n", index);
+        }
+    }
+
+    /*To check if the parameter passed in is a digit*/
+    for(index = '0'; index <= '9'; index++)
+    {
+        err = __iscsym(index);
+        if(0 == err)
+        {
+            Fail("\n__iscsym failed to recognize a digit %c!\n",
+                        index);
+        }
+    }
+
+    /*To check if the parameter passed in is a underscore*/
+    err = __iscsym('_');
+    if(0 == err)
+    {
+        Fail("\n__iscsym failed to recognize an underscore!\n");
+    }
+
+    memset(errBuffer, 0, 200);
+
+    for(index = 0; non_letter_set[index]; index++)
+    {
+        err = __iscsym(non_letter_set[index]);
+        if(0 != err)
+        {
+            strncat(errBuffer, &non_letter_set[index], 1);
+            strcat(errBuffer, ", ");
+        }
+    }
+
+    if(strlen(errBuffer) > 0)
+    {
+        Fail("\n__iscsym failed to identify the characters '%s' "
+             "as not letters, digits "
+             "or underscores\n", errBuffer);
+    }
+    PAL_Terminate();
+    return PASS;
+}
diff --git a/src/pal/tests/palsuite/c_runtime/__iscsym/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/__iscsym/test1/testinfo.dat
new file mode 100644
index 0000000000..e6668edccf
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/__iscsym/test1/testinfo.dat
@@ -0,0 +1,12 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = __iscsym
+Name = Positive test for __iscsym to test letter, digit and underscore
+TYPE = DEFAULT
+EXE1 = __iscsym
+Description
+=Test the __iscsym to test letter, digit and underscore
diff --git a/src/pal/tests/palsuite/c_runtime/_alloca/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_alloca/CMakeLists.txt
new file mode 100644
index 0000000000..f6aa0cb2d9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_alloca/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_alloca/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_alloca/test1/CMakeLists.txt
new file mode 100644
index 0000000000..236b356185
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_alloca/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_alloca_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_alloca_test1 coreclrpal)
+
+target_link_libraries(paltest_alloca_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_alloca/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_alloca/test1/test1.c
new file mode 100644
index 0000000000..c533d84234
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_alloca/test1/test1.c
@@ -0,0 +1,62 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================================
+**
+** Source:  test1.c
+**
+** Purpose: Checks that _alloca allocates memory, and that the memory is
+**          readable and writeable.
+**
+**
+**==========================================================================*/
+
+#include <palsuite.h>
+
+int __cdecl main(int argc, char **argv)
+{
+
+    char *testA = NULL;
+    int i = 0;
+
+    /*
+     * Initialize the PAL and return FAIL if this fails
+     */
+    if (0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+
+
+    /* check that _alloca really gives us addressable memory */
+    testA = (char *)_alloca(20 * sizeof(char));
+    if (testA == NULL)
+    {
+        Fail ("The call to _alloca failed\n");
+    }
+
+    memset(testA, 'a', 20);
+
+    for (i = 0; i < 20; i++)
+    {
+        if (testA[i] != 'a')
+        {
+            Fail ("The memory returned by _alloca doesn't seem to be"
+                    " properly allocated\n");
+        }
+    }
+    
+    PAL_Terminate();
+    return PASS;
+}
+
+
+
+
+
+
+
+
+
+
diff --git a/src/pal/tests/palsuite/c_runtime/_alloca/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_alloca/test1/testinfo.dat
new file mode 100644
index 0000000000..e21562195e
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_alloca/test1/testinfo.dat
@@ -0,0 +1,13 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _alloca
+Name = Positive Test for _alloca
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Checks that _alloca allocates memory, and that the memory is 
+= readable and writeable.
diff --git a/src/pal/tests/palsuite/c_runtime/_ecvt/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_ecvt/CMakeLists.txt
new file mode 100644
index 0000000000..f6aa0cb2d9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_ecvt/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_ecvt/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_ecvt/test1/CMakeLists.txt
new file mode 100644
index 0000000000..86f4547b2b
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_ecvt/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_ecvt_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_ecvt_test1 coreclrpal)
+
+target_link_libraries(paltest_ecvt_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_ecvt/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_ecvt/test1/test1.c
new file mode 100644
index 0000000000..fbcf11ecfc
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_ecvt/test1/test1.c
@@ -0,0 +1,135 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*=====================================================================
+**
+** Source:  c_runtime/_ecvt/test1/test1.c
+**
+** Purpose:  Call the _ecvt function on a number of cases.  Check that it
+** handles negatives, positives and double bounds correctly.  Also check that 
+** the 'digit' specification works.
+**
+**
+**===================================================================*/
+
+#include <palsuite.h>
+
+#define INT64_TO_DOUBLE(a) (*(double*)&a)
+
+INT64 NaN = 0x7ff8000000000000;
+INT64 NegativeInfinity = 0xfff0000000000000;
+INT64 NegativeSmall = 0x8000000000000001;
+INT64 PositiveInfinity = 0x7ff0000000000000;
+INT64 PositiveSmall = 0x0000000000000001;
+
+struct testCase
+{
+    double value;        /* number to be converted */ 
+    int precision;       /* number of digits to be stored */
+    int decimal;         /* (expected) decimal point position for stored 
+                          * number */
+    int sign;            /* (expected) return value */
+    char expResult[256]; /* (expected) character array to be returned
+                          * NOTE: this necessarily limits precision 
+                          * to a value between 0 and 255 */
+    char bsdExpResult[256]; /* (expected) character array to be returned
+                          * NOTE: this necessarily limits precision 
+                          * to a value between 0 and 255 */
+};
+
+int __cdecl main(int argc, char **argv)
+{
+    char *result;
+    int testDecimal;
+    int testSign;
+    int i=0;
+
+    struct testCase testCases[] =
+        {
+            /* odd ball values */
+            {INT64_TO_DOUBLE(NaN), 7, 1, 0, "1#QNAN0" },
+            /* positive values */
+            {0, 0, 0, 0, ""},
+            {INT64_TO_DOUBLE(PositiveSmall), 17, -323, 0, 
+             "49406564584124654"},
+            {.00123, 3, -2, 0, "123"},
+            {.123, 3, 0, 0, "123"},
+            {123, 3, 3, 0, "123"},
+            {3.1415926535, 9, 1, 0, "314159265"},
+            {3.1415926535, 10, 1, 0, "3141592654"},
+            {3.1415926535, 11, 1, 0, "31415926535"},
+            {3.1415926535, 12, 1, 0, "314159265350"},
+            {184467444073709570000.0, 21, 21, 0, "184467444073709570000", 
+                "184467444073709568000" },  
+            {184467444073709570000.0, 22, 21, 0, "1844674440737095700000", 
+                "1844674440737095680000" }, 
+            {INT64_TO_DOUBLE(PositiveInfinity), 7, 1, 0, "1#INF00" },
+            /* negative values */
+            {-0, 0, 0, 0, ""},
+            {INT64_TO_DOUBLE(NegativeSmall), 17, -323, 1, 
+            "49406564584124654"},
+            {-.00123, 3, -2, 1, "123"},
+            {-.123, 3, 0, 1, "123"},
+            {-123, 3, 3, 1, "123"},
+            {-3.1415926535, 9, 1, 1, "314159265"},
+            {-3.1415926535, 10, 1, 1, "3141592654"},
+            {-3.1415926535, 11, 1, 1, "31415926535"},
+            {-3.1415926535, 12, 1, 1, "314159265350"},
+            {-184467444073709570000.0, 21, 21, 1, "184467444073709570000", 
+                "184467444073709568000" },  
+            {-184467444073709570000.0, 22, 21, 1, "1844674440737095700000", 
+                "1844674440737095680000" },
+            {INT64_TO_DOUBLE(NegativeInfinity), 7, 1, 1, "1#INF00"}
+
+        };
+
+    if (0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+
+    /* Loop through each case. Call _ecvt on each test case and check the
+       result.
+    */
+
+    for(i = 0; i < sizeof(testCases) / sizeof(struct testCase); i++)
+    {
+        result = _ecvt(testCases[i].value, 
+                       testCases[i].precision,
+                       &testDecimal,
+                       &testSign);
+        
+        if (( strcmp(testCases[i].expResult, result) != 0 && 
+              strcmp(testCases[i].bsdExpResult, result) != 0 ) || 
+
+            ( testCases[i].sign != testSign ) || 
+            ( testCases[i].decimal != testDecimal ))
+        
+        {
+            Fail("PALSUITE ERROR: Test %d\n"
+                 "-----------------------\n"
+                 "testCases[i].value = '%f'\n"
+                 "testCases[i].precision = '%d'\n"
+                 "testCases[i].decimal = '%d'\n"
+                 "testCases[i].sign = '%d'\n"
+                 "testCases[i].expResult = '%s'\n"
+                 "result = '%s'\n"
+                 "testDecimal = '%d'\n"
+                 "testSign = '%d'\n\n",
+                 i,
+                 testCases[i].value,
+                 testCases[i].precision,
+                 testCases[i].decimal,
+                 testCases[i].sign,
+                 testCases[i].expResult,
+                 result,
+                 testDecimal,
+                 testSign);
+        }
+
+    }
+
+    PAL_Terminate();
+    return PASS;
+}
diff --git a/src/pal/tests/palsuite/c_runtime/_ecvt/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_ecvt/test1/testinfo.dat
new file mode 100644
index 0000000000..12e7292ec7
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_ecvt/test1/testinfo.dat
@@ -0,0 +1,14 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _ecvt
+Name = Call _ecvt on normal values, negatives, exponents and hex digits.
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Call the _ecvt function on a number of cases.  Check that it
+= handles negatives, positives and double bounds correctly.  Also check that 
+= the 'digit' specification works.
diff --git a/src/pal/tests/palsuite/c_runtime/_fdopen/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_fdopen/CMakeLists.txt
new file mode 100644
index 0000000000..f6aa0cb2d9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_fdopen/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_fdopen/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_fdopen/test1/CMakeLists.txt
new file mode 100644
index 0000000000..441d32bd5c
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_fdopen/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_fdopen_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_fdopen_test1 coreclrpal)
+
+target_link_libraries(paltest_fdopen_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_fdopen/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_fdopen/test1/test1.c
new file mode 100644
index 0000000000..b88267c6e4
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_fdopen/test1/test1.c
@@ -0,0 +1,112 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*=====================================================================
+**
+** Source:  test1.c (fdopen)
+**
+** Purpose: Tests the PAL implementation of the fdopen function. 
+**          This will test fdopen in r (read) mode. This test 
+**          creates and opens a test pipe, to write and read 
+**          from. fdopen requires a file handle(int), therefore
+**          _open_osfhandle is used to get that handle. 
+**          _open_osfhandle is only used with CreatePipe. The 
+**          test will write and read from the pipe comparing 
+**          the results.
+**      
+**          See /tests/palsuite/README.txt for more information.
+**
+**
+**===================================================================*/
+
+#include <palsuite.h>
+
+const char* cTestString = "one fish, two fish, read fish, blue fish.";
+
+int __cdecl main(int argc, char **argv)
+{
+    HANDLE  hReadPipe   = NULL;
+    HANDLE  hWritePipe  = NULL;
+    BOOL    bRetVal     = FALSE;
+    int     iFiledes    = 0;
+    DWORD   dwBytesWritten;
+    char    buffer[45];
+    FILE    *fp;
+
+    SECURITY_ATTRIBUTES lpPipeAttributes;
+
+    /*Initialize the PAL*/
+    if ((PAL_Initialize(argc, argv)) != 0)
+    {
+        return (FAIL);
+    }
+
+    /*Setup SECURITY_ATTRIBUTES structure for CreatePipe*/
+    lpPipeAttributes.nLength              = sizeof(lpPipeAttributes); 
+    lpPipeAttributes.lpSecurityDescriptor = NULL; 
+    lpPipeAttributes.bInheritHandle       = TRUE; 
+
+    /*Create a Pipe*/
+    bRetVal = CreatePipe(&hReadPipe,      // read handle
+                &hWritePipe,              // write handle
+                &lpPipeAttributes,        // security attributes
+                0);                       // pipe size
+
+    if (bRetVal == FALSE)
+    {
+        Fail("ERROR: unable to create pipe");
+    }
+
+    /*Write to the write pipe handle*/
+    bRetVal = WriteFile(hWritePipe,       // handle to file
+                cTestString,              // data buffer
+                (DWORD)strlen(cTestString),      // number of bytes to write
+                &dwBytesWritten,          // number of bytes written
+                NULL);                    // overlapped buffer
+
+    if (bRetVal == FALSE)
+    {
+        Fail("ERROR: unable to write to pipe write handle "
+                "hWritePipe=0x%lx", hWritePipe);
+    }
+
+    /*Get a file descriptor for the read pipe handle*/
+    iFiledes = _open_osfhandle((long)hReadPipe, _O_RDONLY);
+
+    if (iFiledes == -1)
+    {
+        Fail("ERROR: _open_osfhandle failed to open "
+             " hReadPipe=0x%lx", hReadPipe);
+    }
+    
+    /*Open read pipe handle in read mode*/
+    fp = _fdopen(iFiledes, "r");
+
+    if (fp == NULL)
+    {
+        Fail("ERROR: unable to fdopen file descriptor"
+             " iFiledes=%d", iFiledes);
+    }
+
+    /*Read from the read pipe handle*/
+    if((fread(buffer, sizeof(char), strlen(cTestString), fp)) == 0)
+    {
+        Fail("ERROR: Unable to read from file stream fp=0x%lx\n", fp);
+    }
+
+    /*Compare what was read with what was written.*/
+    if ((memcmp(cTestString, buffer, strlen(cTestString))) != 0)
+    {
+        Fail("ERROR: read \"%s\" expected \"%s\" \n", buffer, cTestString);
+    }
+
+    /*Close the file handle*/
+    if (_close(iFiledes) != 0)
+    {
+        Fail("ERROR: Unable to close file handle iFiledes=%d\n", iFiledes);
+    }
+    
+    PAL_Terminate();
+    return (PASS);
+}
diff --git a/src/pal/tests/palsuite/c_runtime/_fdopen/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_fdopen/test1/testinfo.dat
new file mode 100644
index 0000000000..89e48bb4c1
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_fdopen/test1/testinfo.dat
@@ -0,0 +1,23 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = fdopen
+Name = test for fdopen and _close
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Tests the PAL implementation of the fdopen function. 
+= This will test fdopen in r (read) mode. This test 
+= creates and opens a test pipe, to write and read 
+= from. fdopen requires a file handle(int), therefore
+= _open_osfhandle is used to get that handle. 
+= _open_osfhandle is only used with CreatePipe. The 
+= test will write and read from the pipe comparing 
+= the results.
+= As a secondary test, _close is tested since it needs
+= the handle returned by _open_osfhandle. The handle is
+= closed, then a read is attempted on the handle which 
+= should fail.
diff --git a/src/pal/tests/palsuite/c_runtime/_finite/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_finite/CMakeLists.txt
new file mode 100644
index 0000000000..5e1ef7f28b
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_finite/CMakeLists.txt
@@ -0,0 +1,3 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
diff --git a/src/pal/tests/palsuite/c_runtime/_finite/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_finite/test1/CMakeLists.txt
new file mode 100644
index 0000000000..8aca58a8dc
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_finite/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_finite_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_finite_test1 coreclrpal)
+
+target_link_libraries(paltest_finite_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_finite/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_finite/test1/test1.c
new file mode 100644
index 0000000000..c815055b38
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_finite/test1/test1.c
@@ -0,0 +1,119 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================================
+**
+** Source:  test1.c
+**
+** Purpose: Checks that _finite correctly classifies all types
+**          of floating point numbers (NaN, -Infinity, Infinity,
+**          finite nonzero, unnormalized, 0, and -0)
+**
+**==========================================================================*/
+
+#include <palsuite.h>
+
+/*
+The IEEE double precision floating point standard looks like this:
+
+  S EEEEEEEEEEE FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
+  0 1        11 12                                                63
+
+S is the sign bit.  The E bits are the exponent, and the 52 F bits are
+the fraction.  These represent a value, V.
+
+If E=2047 and F is nonzero, then V=NaN ("Not a number")
+If E=2047 and F is zero and S is 1, then V=-Infinity
+If E=2047 and F is zero and S is 0, then V=Infinity
+If 0<E<2047 then V=(-1)^S * 2^(E-1023) * (1.F) where "1.F" is the binary
+   number created by prefixing F with a leading 1 and a binary point.
+If E=0 and F is nonzero, then V=(-1)^S * 2^(-1022) * (0.F) These are
+   "unnormalized" values.
+If E=0 and F is zero and S is 1, then V=-0
+If E=0 and F is zero and S is 0, then V=0
+
+*/
+
+#define TO_DOUBLE(x)    (*((double*)((void*)&x)))
+
+int __cdecl main(int argc, char **argv)
+{
+    /*non-finite numbers*/
+    UINT64 lsnan =              UI64(0xffffffffffffffff);
+    UINT64 lqnan =              UI64(0x7fffffffffffffff);
+    UINT64 lneginf =            UI64(0xfff0000000000000);
+    UINT64 lposinf =            UI64(0x7ff0000000000000);
+
+    double snan =               TO_DOUBLE(lsnan);
+    double qnan =               TO_DOUBLE(lqnan);
+    double neginf =             TO_DOUBLE(lneginf);
+    double posinf =             TO_DOUBLE(lposinf);
+
+    /*finite numbers*/
+    UINT64 lnegunnormalized =   UI64(0x800fffffffffffff);
+    UINT64 lposunnormalized =   UI64(0x000fffffffffffff);
+    UINT64 lnegzero =           UI64(0x8000000000000000);
+
+    double negunnormalized =    TO_DOUBLE(lnegunnormalized);
+    double posunnormalized =    TO_DOUBLE(lposunnormalized);
+    double negzero =            TO_DOUBLE(lnegzero);
+
+    /*
+     * Initialize the PAL and return FAIL if this fails
+     */
+    if (PAL_Initialize(argc, argv) != 0)
+    {
+        return FAIL;
+    }
+
+    /*non-finite numbers*/
+    if (_finite(snan) || _finite(qnan))
+    {
+        Fail("_finite() found NAN to be finite.\n");
+    }
+
+    if (_finite(neginf))
+    {
+        Fail("_finite() found negative infinity to be finite.\n");
+    }
+
+    if (_finite(posinf))
+    {
+        Fail("_finite() found infinity to be finite.\n");
+    }
+
+    /*finite numbers*/
+    if (!_finite(negunnormalized))
+    {
+        Fail("_finite() found a negative unnormalized value to be infinite.\n");
+    }
+
+    if (!_finite(posunnormalized))
+    {
+        Fail("_finite() found an unnormalized value to be infinite.\n");
+    }
+
+    if (!_finite(negzero))
+    {
+        Fail("_finite() found negative zero to be infinite.\n");
+    }
+
+    if (!_finite(+0.0))
+    {
+        Fail("_finite() found zero to be infinite.\n");
+    }
+
+    if (!_finite(-123.456))
+    {
+        Fail("_finite() found %f to be infinite.\n", -123.456);
+    }
+
+    if (!_finite(+123.456))
+    {
+        Fail("_finite() found %f to be infinite.\n", +123.456);
+    }
+
+    PAL_Terminate();
+    return PASS;
+}
diff --git a/src/pal/tests/palsuite/c_runtime/_finite/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_finite/test1/testinfo.dat
new file mode 100644
index 0000000000..cec0f8ae4a
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_finite/test1/testinfo.dat
@@ -0,0 +1,13 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _finite
+Name = Positive Test for _finite
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Checks that _finite correctly classifies all types of floating point
+= numbers (NaN, -Infinity, Infinity, finite nonzero, unnormalized, 0, and -0).
diff --git a/src/pal/tests/palsuite/c_runtime/_fullpath/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_fullpath/CMakeLists.txt
new file mode 100644
index 0000000000..f6aa0cb2d9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_fullpath/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_fullpath/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_fullpath/test1/CMakeLists.txt
new file mode 100644
index 0000000000..9306efa700
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_fullpath/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_fullpath_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_fullpath_test1 coreclrpal)
+
+target_link_libraries(paltest_fullpath_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_fullpath/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_fullpath/test1/test1.c
new file mode 100644
index 0000000000..f390f4309b
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_fullpath/test1/test1.c
@@ -0,0 +1,181 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================
+**
+** Source: _fullpath/test1/test1.c
+**
+** Purpose: Test to see if the _fullpath function returns the
+** proper values.  A check is done to ensure NULL is returned
+** by _fullpath only for the condition where the length of the 
+** created absolute path name (absPath) is greater than 
+** maxLength.  
+**
+** Dependencies: strlen
+**               strncmp
+**               SetCurrentDirectory
+**               GetCurrentDirectory
+** 
+
+**
+**=========================================================*/
+
+#include <palsuite.h>
+
+struct testcase 
+{
+    char relPath[50]; /* relative path array */
+    int maxLength;    /* pathlength to pass */
+    BOOL bRet;        /* TRUE if testcase expects function to return NULL */
+};
+
+int __cdecl main( int argc, char **argv ) 
+{
+
+    DWORD dwOrigDirLength;
+    DWORD dwNewDirLength;
+    DWORD dwRetStrLength;
+    BOOL bRet;
+    char *retPath;
+    char szAbsPath[_MAX_PATH + 1];
+    char szDirNameOWD[_MAX_DIR];
+    char szDirNameNWD[_MAX_DIR];
+    int i;
+
+    struct testcase testcases[]=
+    {
+        {"." , _MAX_PATH, FALSE},
+        {".." , _MAX_PATH, FALSE},
+        {"..\\..", _MAX_PATH, FALSE},
+        {"..\\..\\..", _MAX_PATH, FALSE},
+        {"..", 1, TRUE}
+    };
+
+    if(0 != (PAL_Initialize(argc, argv)))
+    {
+        return ( FAIL );
+    }
+     
+    for (i = 0; i < sizeof(testcases)/sizeof(struct testcase) ; i++)
+    {
+
+        /* reset variables */
+        memset(szAbsPath, 0, _MAX_PATH + 1);
+        memset(szDirNameOWD, 0, _MAX_DIR);
+        memset(szDirNameNWD, 0, _MAX_DIR);
+
+        dwOrigDirLength = 0;
+        dwNewDirLength = 0;
+        dwRetStrLength = 0;
+       
+        /* Get the current directory name */
+        dwOrigDirLength = GetCurrentDirectory(_MAX_PATH, szDirNameOWD);
+        if (0 == dwOrigDirLength) 
+        {
+            Fail ("PALSUITE ERROR: _fullpath (char *, %s, %d) test failed."
+                  "\nGetCurrentDirectory (%d, %s) call failed. GetLastError"
+                  " returned '%d'\n", testcases[i].relPath, 
+                  testcases[i].maxLength, _MAX_PATH, szDirNameOWD, 
+                  GetLastError());
+        }
+
+        /* 
+         * Set the current directory to relPath.
+         */
+        bRet = SetCurrentDirectory(testcases[i].relPath);
+        if (0 == bRet) 
+        {
+            Fail ("PALSUITE ERROR: _fullpath (char *, %s, %d) test failed."
+                  "\nSetCurrentDirectory (%s) call failed. GetLastError"
+                  " returned '%d'\n", testcases[i].relPath, 
+                  testcases[i].maxLength, testcases[i].relPath, 
+                  GetLastError());
+        }
+            
+        /* Get the new current directory name */
+        dwNewDirLength = GetCurrentDirectory(_MAX_PATH, szDirNameNWD);
+        if (0 == dwNewDirLength) 
+        {
+            Fail ("PALSUITE ERROR: _fullpath (char *, %s, %d) test failed."
+                  "\nGetCurrentDirectory(%d, %s) call failed. GetLastError"
+                   " returned '%d'\n", testcases[i].relPath, 
+                  testcases[i].maxLength, _MAX_PATH, szDirNameNWD,
+                  GetLastError());
+        }
+            
+        /* Set the current directory back to the original one */
+        bRet = SetCurrentDirectory(szDirNameOWD);
+        if (0 == bRet) 
+        {
+            Fail ("PALSUITE ERROR: _fullpath (char *, %s, %d) test failed."
+                  "\nSetCurrentDirectory(%s) call failed. GetLastError"
+                  " returned '%d'\n", testcases[i].relPath, 
+                  testcases[i].maxLength, szDirNameOWD, GetLastError());
+        }
+
+        retPath = _fullpath( szAbsPath, 
+                             testcases[i].relPath, 
+                             testcases[i].maxLength );
+        
+        if ( NULL == retPath )
+        {
+            /* The function returned NULL when a value was expected */
+            if ( FALSE == testcases[i].bRet )
+            {
+                Fail("PALSUITE ERROR: test failed.\n"
+                     "_fullpath (char *, %s, %d) returned NULL\n" 
+                     "when '%s' was expected\n", testcases[i].relPath, 
+                      testcases[i].maxLength, szDirNameNWD );
+            }
+        } 
+        else
+        {
+            dwRetStrLength = strlen ( szAbsPath );
+
+            /* Check that the path lengths are identical. */
+            if ( dwRetStrLength != dwNewDirLength )
+            {
+                Fail ("PALSUITE ERROR: _fullpath (char *, %s, %d) test failed."
+                      "\ndwRetStringLength '%d' is not equal to "
+                      "dwNewDirLength '%d'.\nszAbsPath is '%s' retPath is '%s'\n"
+                      "szDirNameNWD is '%s'\n" , testcases[i].relPath, 
+                      testcases[i].maxLength, dwRetStrLength ,dwNewDirLength
+                      ,szAbsPath ,retPath ,szDirNameNWD);
+            }
+
+            /* 
+             * Perform a string comparison on the path provided by 
+             * GetCurrentDirectory and the path provided by _fullpath 
+             * to ensure they are identical.
+             */
+            if ( 0 != strncmp( szDirNameNWD, szAbsPath, dwNewDirLength ))
+            {
+                Fail ("PALSUITE ERROR: _fullpath (char *, %s, %d) test failed."
+                      "strncmp ( %s, %s, %d ) call failed.\n", 
+                      testcases[i].relPath, testcases[i].maxLength, 
+                      szDirNameNWD, szAbsPath, dwNewDirLength );
+            }
+
+            /* 
+             * Perform a string comparison on both paths provided by 
+             * _fullpath to ensure they are identical.
+             */
+            if ( 0 != strncmp( retPath, szAbsPath, dwNewDirLength ))
+            {
+                Fail ("PALSUITE ERROR: _fullpath (char *, %s, %d) test failed."
+                      "strncmp ( %s, %s, %d ) call failed.\n", 
+                      testcases[i].relPath, testcases[i].maxLength, 
+                      szDirNameNWD, szAbsPath, dwNewDirLength );
+            }
+        } 
+    }
+
+    PAL_Terminate();
+    return ( PASS );
+}
+
+
+
+
+
diff --git a/src/pal/tests/palsuite/c_runtime/_fullpath/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_fullpath/test1/testinfo.dat
new file mode 100644
index 0000000000..cd4db831a4
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_fullpath/test1/testinfo.dat
@@ -0,0 +1,23 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = c_runtime
+Function = _fullpath
+Name = Positive Test for _fullpath
+TYPE = DEFAULT
+EXE1 = test1
+Description 
+= Test to see if the _fullpath function returns the
+= proper values.  A check is done to ensure NULL is returned
+= by _fullpath only for the condition where the length of the 
+= created absolute path name (absPath) is greater than 
+= maxLength.
+
+
+
+
+
+
+
diff --git a/src/pal/tests/palsuite/c_runtime/_gcvt/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_gcvt/CMakeLists.txt
new file mode 100644
index 0000000000..ef14ea5352
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_gcvt/CMakeLists.txt
@@ -0,0 +1,5 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+add_subdirectory(test2)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_gcvt/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_gcvt/test1/CMakeLists.txt
new file mode 100644
index 0000000000..33eb5cf19c
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_gcvt/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  _gcvt.c
+)
+
+add_executable(paltest_gcvt_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_gcvt_test1 coreclrpal)
+
+target_link_libraries(paltest_gcvt_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_gcvt/test1/_gcvt.c b/src/pal/tests/palsuite/c_runtime/_gcvt/test1/_gcvt.c
new file mode 100644
index 0000000000..ccfc286898
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_gcvt/test1/_gcvt.c
@@ -0,0 +1,58 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*=============================================================
+**
+** Source: _gcvt.c
+**
+** Purpose: Positive test the _gcvt API.
+**          Call _gcvt to convert a floatable value to a string 
+**          with specified sigficant digits stored
+**
+**
+**============================================================*/
+#include <palsuite.h>
+
+int __cdecl main(int argc, char *argv[])
+{
+    int err;
+    double dValue = -3.1415926535;
+    char buffer[1024];
+    char *pChar7 = "-3.141593";
+
+    /*Initialize the PAL environment*/
+    err = PAL_Initialize(argc, argv);
+    if(0 != err)
+    {
+        return FAIL;
+    }
+
+
+    /* zero the buffer */
+    memset(buffer, 0, 1024);
+
+    
+    /*
+
+     Testing
+     =======
+        
+     To convert a floating-point value to 
+     a string to save 7 significant digits
+    */
+    _gcvt(dValue, 7, buffer);
+    if(strcmp(pChar7, buffer))
+    {
+        Fail("\nFailed to call _gcvt to convert a floating-point value "
+                "to a string with 7 sigficants digits stored\n");
+    }
+   
+
+    /* 
+       Clean up and exit
+    */
+
+    PAL_Terminate();
+    return PASS;
+}
diff --git a/src/pal/tests/palsuite/c_runtime/_gcvt/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_gcvt/test1/testinfo.dat
new file mode 100644
index 0000000000..d527418108
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_gcvt/test1/testinfo.dat
@@ -0,0 +1,13 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _gcvt
+Name = Positive test for _gcvt API to convert a floatable value to a string
+TYPE = DEFAULT
+EXE1 = _gcvt
+Description
+=Test the _gcvt to convert a floatable value to a string
+=with specified sigficant digits stored
diff --git a/src/pal/tests/palsuite/c_runtime/_gcvt/test2/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_gcvt/test2/CMakeLists.txt
new file mode 100644
index 0000000000..05641b9b78
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_gcvt/test2/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test2.c
+)
+
+add_executable(paltest_gcvt_test2
+  ${SOURCES}
+)
+
+add_dependencies(paltest_gcvt_test2 coreclrpal)
+
+target_link_libraries(paltest_gcvt_test2
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_gcvt/test2/test2.c b/src/pal/tests/palsuite/c_runtime/_gcvt/test2/test2.c
new file mode 100644
index 0000000000..7ac9a4fcf0
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_gcvt/test2/test2.c
@@ -0,0 +1,83 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*=====================================================================
+**
+** Source:  test2.c
+**
+** Purpose:  Call the _gcvt function on a number of cases.  Check that it
+** handles negatives, exponents and hex digits properly.  Also check that 
+** the 'digit' specification works. (And that it doesn't truncate negative
+** signs or decimals)  
+**
+**
+**===================================================================*/
+
+#include <palsuite.h>
+
+struct testCase
+{
+    double Value;
+    int Digits;
+    char WinCorrectResult[128];
+    char BsdCorrectResult[128]; /* for the odd case where bsd sprintf 
+                                    varies from windows sprintf */
+};
+
+int __cdecl main(int argc, char **argv)
+{
+    char result[128];
+    int i=0;
+
+    struct testCase testCases[] =
+    {
+        {1234567,  7, "1234567"},
+        {1234.123, 7, "1234.123"},
+        {1234.1234, 7, "1234.123"},
+        {12.325678e+2, 7, "1232.568"},
+        {-12.3233333, 8, "-12.323333"},
+        {-12.32, 8, "-12.32"},
+        {-12.32e+2, 8, "-1232.", "-1232" },
+        {0x21DDFABC, 8, "5.6819577e+008", "5.6819577e+08" },
+        {123456789012345.0, 15, "123456789012345" },
+        {12340000.0, 8, "12340000"},
+        {12340000000000000.0, 15, "1.234e+016", "1.234e+16" },
+        {12340000000000000.0, 17, "12340000000000000"  },
+        
+    };
+
+    if (0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+
+    /* Loop through each case. Call _gcvt on each test case and check the
+       result.
+    */
+
+    for(i = 0; i < sizeof(testCases) / sizeof(struct testCase); i++)
+    {
+        _gcvt(testCases[i].Value, testCases[i].Digits, result);
+
+        if (strcmp(testCases[i].WinCorrectResult, result) != 0 && 
+            
+            ( testCases[i].BsdCorrectResult && 
+              strcmp(testCases[i].BsdCorrectResult, result) != 0 ) )
+        {
+            Fail("ERROR: _gcvt attempted to convert %f with %d digits "
+                 "signifigant, which resulted in "
+                 "the string '%s' instead of the correct(Win) string '%s' or the"
+                 "correct(bsd) string '%s'.\n",
+                 testCases[i].Value,
+                 testCases[i].Digits,
+                 result,
+                 testCases[i].WinCorrectResult,
+                 testCases[i].BsdCorrectResult);
+        }
+
+        memset(result, '\0', 128);
+    }
+    PAL_Terminate();
+    return PASS;
+}
diff --git a/src/pal/tests/palsuite/c_runtime/_gcvt/test2/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_gcvt/test2/testinfo.dat
new file mode 100644
index 0000000000..e9e192849a
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_gcvt/test2/testinfo.dat
@@ -0,0 +1,15 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _gcvt
+Name = Call _gcvt on normal values, negatives, exponents and hex digits.
+TYPE = DEFAULT
+EXE1 = test2
+Description
+= Call the _gcvt function on a number of cases.  Check that it
+= handles negatives, exponents and hex digits properly.  Also check that 
+= the 'digit' specification works. (And that it doesn't truncate negative
+= signs or decimals) 
diff --git a/src/pal/tests/palsuite/c_runtime/_getw/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_getw/CMakeLists.txt
new file mode 100644
index 0000000000..f6aa0cb2d9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_getw/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_getw/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_getw/test1/CMakeLists.txt
new file mode 100644
index 0000000000..d44477b232
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_getw/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_getw_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_getw_test1 coreclrpal)
+
+target_link_libraries(paltest_getw_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_getw/test1/test.dat b/src/pal/tests/palsuite/c_runtime/_getw/test1/test.dat
new file mode 100644
index 0000000000..b20eae054c
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_getw/test1/test.dat
diff --git a/src/pal/tests/palsuite/c_runtime/_getw/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_getw/test1/test1.c
new file mode 100644
index 0000000000..34ce4ee7de
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_getw/test1/test1.c
@@ -0,0 +1,96 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================================
+**
+** Source:  test1.c
+**
+** Purpose: Several integers are read from a previously written file
+**          using _getw.  The test passes if the values read match those known to
+**          be in the file.
+**
+**
+**==========================================================================*/
+
+#include <palsuite.h>
+
+/*Tests _getw using a previously written data file */
+int __cdecl main(int argc, char **argv)
+{
+    const int testValues[] =
+    {
+        0,
+        1,
+        -1,
+        0x7FFFFFFF,            /* largest positive integer on 32 bit systems */
+        0x80000000,            /* largest negative integer on 32 bit systems */
+        0xFFFFFFFF,
+        0xFFFFAAAA
+    };
+
+    int i = 0;
+    int input = 0;
+
+    const char filename[] = "test.dat";
+
+
+    FILE *fp = NULL;
+
+    /*
+     * Initialize the PAL and return FAIL if this fails
+     */
+    if (0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+
+    /* write the file that we will use to test */
+
+
+    /*
+      Don't uncomment this code, it was used to create the data file
+      initially on windows, but if it is run on all test platforms, the
+      tests will always pass.
+
+      fp = fopen(filename, "w");
+      if (fp == NULL)
+      {
+      Fail("Unable to open file for write.\n");
+      }
+      for (i = 0; i < sizeof(testValues) / sizeof(testValues[0]); i++)
+      {
+      _putw(testValues[i], fp);
+      }
+
+      if (fclose(fp) != 0)
+      {
+      Fail("Error closing file after writing to it with _putw.\n");
+      }
+    */
+
+
+    /*Now read values back from the file and see if they match.*/
+    fp = fopen(filename, "r");
+    if (fp == NULL)
+    {
+        Fail ("Unable to open file for read.\n");
+    }
+    for (i = 0; i < sizeof(testValues) / sizeof(testValues[0]); i++)
+    {
+        input = _getw(fp);
+        if (VAL32(input) != testValues[i])
+        {
+            Fail ("_getw did not get the expected values when reading "
+                    "from a file.\n");
+        }
+    }
+
+    if (fclose(fp) != 0)
+    {
+        Fail ("Error closing file after reading from it with _getw\n");
+    }
+    PAL_Terminate();
+    return PASS;
+}
+
diff --git a/src/pal/tests/palsuite/c_runtime/_getw/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_getw/test1/testinfo.dat
new file mode 100644
index 0000000000..4044dadbcc
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_getw/test1/testinfo.dat
@@ -0,0 +1,15 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _getw
+Name = Positive Test for _getw
+TYPE = DEFAULT
+EXE1 = test1
+Description
+=Several integers are read from a previously written file
+=using _getw.  The test passes if the values read match those known to
+=be in the file.
+
diff --git a/src/pal/tests/palsuite/c_runtime/_isnan/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_isnan/CMakeLists.txt
new file mode 100644
index 0000000000..5e1ef7f28b
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_isnan/CMakeLists.txt
@@ -0,0 +1,3 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
diff --git a/src/pal/tests/palsuite/c_runtime/_isnan/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_isnan/test1/CMakeLists.txt
new file mode 100644
index 0000000000..e14d0cc64b
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_isnan/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_isnan_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_isnan_test1 coreclrpal)
+
+target_link_libraries(paltest_isnan_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_isnan/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_isnan/test1/test1.c
new file mode 100644
index 0000000000..d793c9b371
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_isnan/test1/test1.c
@@ -0,0 +1,115 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================================
+**
+** Source:  test1.c
+**
+** Purpose: 
+** Test _isnan with a number of trivial values, to ensure they indicated that
+** they are numbers.  Then try with Positive/Negative Infinite, which should
+** also be numbers.  Finally set the least and most significant bits of 
+** the fraction to positive and negative, at which point it should return
+** the true value. 
+**
+**==========================================================================*/
+
+#include <palsuite.h>
+
+#define TO_DOUBLE(x)    (*((double*)((void*)&x)))
+#define TO_I64(x)       (*((INT64*)((void*)&x)))
+
+/*
+ * NaN: any double with maximum exponent (0x7ff) and non-zero fraction
+ */
+int __cdecl main(int argc, char *argv[])
+{
+    /*
+     * Initialize the PAL and return FAIL if this fails
+     */
+    if (PAL_Initialize(argc, argv) != 0)
+    {
+        return FAIL;
+    }
+
+    /*
+     * Try some trivial values
+     */
+    if (_isnan(0.0))
+    {
+        Fail("_isnan() incorrectly identified %f as NaN!\n", 0.0);
+    }
+
+    if (_isnan(1.23456))
+    {
+        Fail("_isnan() incorrectly identified %f as NaN!\n", 1.234567);
+    }
+
+    if (_isnan(42.0))
+    {
+        Fail("_isnan() incorrectly identified %f as NaN!\n", 42.0);
+    }
+
+    UINT64 lneginf =            UI64(0xfff0000000000000);
+    UINT64 lposinf =            UI64(0x7ff0000000000000);
+    
+    double neginf =             TO_DOUBLE(lneginf);
+    double posinf =             TO_DOUBLE(lposinf);
+
+    /*
+     * Try positive and negative infinity
+     */
+    if (_isnan(neginf))
+    {
+        Fail("_isnan() incorrectly identified negative infinity as NaN!\n");
+    }
+
+    if (_isnan(posinf))
+    {
+        Fail("_isnan() incorrectly identified infinity as NaN!\n");
+    }
+
+    /*
+     * Try setting the least significant bit of the fraction,
+     * positive and negative
+     */
+    UINT64 lsnan =              UI64(0xfff0000000000001);
+    double snan =               TO_DOUBLE(lsnan);
+    
+    if (!_isnan(snan))
+    {
+        Fail("_isnan() failed to identify %I64x as NaN!\n", lsnan);
+    }
+
+    UINT64 lqnan =              UI64(0x7ff0000000000001);
+    double qnan =               TO_DOUBLE(lqnan);
+    
+    if (!_isnan(qnan))
+    {
+        Fail("_isnan() failed to identify %I64x as NaN!\n", lqnan);
+    }
+
+    /*
+     * Try setting the most significant bit of the fraction,
+     * positive and negative
+     */
+    lsnan =                     UI64(0xfff8000000000000);
+    snan =                      TO_DOUBLE(lsnan);
+
+    if (!_isnan(snan))
+    {
+        Fail ("_isnan() failed to identify %I64x as NaN!\n", lsnan);
+    }
+
+    lqnan =                     UI64(0x7ff8000000000000);
+    qnan =                      TO_DOUBLE(lqnan);
+
+    if (!_isnan(qnan))
+    {
+        Fail ("_isnan() failed to identify %I64x as NaN!\n", lqnan);
+    }
+
+    PAL_Terminate();
+    return PASS;
+}
diff --git a/src/pal/tests/palsuite/c_runtime/_isnan/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_isnan/test1/testinfo.dat
new file mode 100644
index 0000000000..d5de17e219
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_isnan/test1/testinfo.dat
@@ -0,0 +1,16 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _isnan
+Name = Test #1 for _isnan
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Test _isnan with a number of trivial values, to ensure they indicated that
+= they are numbers.  Then try with Positive/Negative Infinite, which should
+= also be numbers.  Finally set the least and most significant bits of 
+= the fraction to positive and negative, at which point it should return
+= the true value.
diff --git a/src/pal/tests/palsuite/c_runtime/_itow/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_itow/CMakeLists.txt
new file mode 100644
index 0000000000..f6aa0cb2d9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_itow/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_itow/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_itow/test1/CMakeLists.txt
new file mode 100644
index 0000000000..bd37f31216
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_itow/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_itow_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_itow_test1 coreclrpal)
+
+target_link_libraries(paltest_itow_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_itow/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_itow/test1/test1.c
new file mode 100644
index 0000000000..745ce4acaa
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_itow/test1/test1.c
@@ -0,0 +1,102 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*=====================================================================
+**
+** Source:  test1.c
+**
+** Purpose: Tests the PAL implementation of the _itow function.
+**          Test a number of ints with different radix on each,
+**          to ensure that the string returned is correct.
+**
+**
+**===================================================================*/
+
+#define UNICODE
+
+#include <palsuite.h>
+
+struct testCase
+{
+    wchar_t *CorrectResult;
+    int value;
+    int radix;
+};
+
+int __cdecl main(int argc, char **argv)
+{
+
+    wchar_t result[20];
+    wchar_t *pResult = NULL;
+    char *PrintResult = NULL;        /* Use with convertC so we can */
+    char *PrintCorrectResult = NULL; /* print out the results       */
+    int i = 0;
+
+    WCHAR case1[] = {'5','0','\0'};
+    WCHAR case2[] = {'5','5','5','\0'};
+    WCHAR case3[] = {'1','0','1','0','\0'};
+    WCHAR case4[] = {'2','2','\0'};
+    WCHAR case5[] = {'a','\0'};
+    WCHAR case6[] = {'c','g','\0'};
+
+    /* Correct Result, Value to Convert, Radix to use */
+    struct testCase testCases[] =
+        {
+            {case1, 50,  10},
+            {case2,555,10},
+            {case3,10,2},
+            {case4,10,4},
+            {case5,10,16},
+            {case6,400,32}
+        };
+
+    /*
+     *  Initialize the PAL and return FAIL if this fails
+     */
+    if (0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+
+    /* Loop through each case. Convert the ints to strings.  Check
+       to ensure they were converted properly.
+    */
+
+    for(i = 0; i < sizeof(testCases) / sizeof(struct testCase); i++)
+    {
+        pResult = _itow(testCases[i].value,result,testCases[i].radix);
+
+        if(pResult != &result[0])
+        {
+            Fail("ERROR: _itow didn't return a correct pointer to the "
+                   "newly formed string.\n");
+        }
+
+        if (0 != wcscmp(testCases[i].CorrectResult,pResult))
+        {
+            PrintResult = convertC(pResult);
+            PrintCorrectResult = convertC(testCases[i].CorrectResult);
+            Fail("ERROR: _itow was called on %i, returning the string %s "
+                   "when it should have returned the string %s.\n"
+                   , testCases[i].value, PrintResult, PrintCorrectResult);
+        }
+
+    }
+
+    PAL_Terminate();
+    return PASS;
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/src/pal/tests/palsuite/c_runtime/_itow/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_itow/test1/testinfo.dat
new file mode 100644
index 0000000000..394c34dff3
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_itow/test1/testinfo.dat
@@ -0,0 +1,18 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _itow
+Name = Positive Test for _itow
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Tests the PAL implementation of the _itow function.
+= Test a number of ints with different radix on each, to ensure that the
+= string returned is correct.
+
+
+
+
diff --git a/src/pal/tests/palsuite/c_runtime/_makepath/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_makepath/CMakeLists.txt
new file mode 100644
index 0000000000..f6aa0cb2d9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_makepath/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_makepath/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_makepath/test1/CMakeLists.txt
new file mode 100644
index 0000000000..9fd81cce1a
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_makepath/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_makepath_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_makepath_test1 coreclrpal)
+
+target_link_libraries(paltest_makepath_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_makepath/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_makepath/test1/test1.c
new file mode 100644
index 0000000000..94b366a7bb
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_makepath/test1/test1.c
@@ -0,0 +1,65 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*=====================================================================
+**
+** Source:  test1.c
+**
+** Purpose: Tests the PAL implementation of the _makepath function.
+**          Create a path, and ensure that it builds how it is
+**          supposed to.
+** 
+**
+**
+**===================================================================*/
+
+#if WIN32
+#define PATHNAME "C:\\test\\test.txt"
+#else
+#define PATHNAME "/test/test.txt"
+#endif
+
+#include <palsuite.h>
+
+int __cdecl main(int argc, char **argv)
+{
+    char FullPath[128];
+
+    /*
+     *  Initialize the PAL and return FAIL if this fails
+     */
+    if (0 != (PAL_Initialize(argc,argv)))
+    {
+        return FAIL;
+    }
+
+#if WIN32
+    _makepath(FullPath,"C","\\test","test","txt");
+#else
+    _makepath(FullPath,NULL,"/test","test","txt");
+#endif
+
+    if(strcmp(FullPath,PATHNAME) != 0)
+    {
+        Fail("ERROR: The pathname which was created turned out to be %s "
+               "when it was supposed to be %s.\n",FullPath,PATHNAME);
+    }
+
+
+    PAL_Terminate();
+    return PASS;
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/src/pal/tests/palsuite/c_runtime/_makepath/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_makepath/test1/testinfo.dat
new file mode 100644
index 0000000000..2aed8e549b
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_makepath/test1/testinfo.dat
@@ -0,0 +1,14 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _makepath
+Name = Positive Test for _makepath
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Purpose: Tests the PAL implementation of the _makepath function.
+= Create a path, and ensure that it builds how it is supposed to.
+
diff --git a/src/pal/tests/palsuite/c_runtime/_mbsdec/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_mbsdec/CMakeLists.txt
new file mode 100644
index 0000000000..f6aa0cb2d9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbsdec/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_mbsdec/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_mbsdec/test1/CMakeLists.txt
new file mode 100644
index 0000000000..064f241f24
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbsdec/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_mbsdec_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_mbsdec_test1 coreclrpal)
+
+target_link_libraries(paltest_mbsdec_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_mbsdec/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_mbsdec/test1/test1.c
new file mode 100644
index 0000000000..1cd7513293
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbsdec/test1/test1.c
@@ -0,0 +1,77 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================================
+**
+** Source:  test1.c
+**
+** Purpose:
+** Ensure that this function moves the string pointer back one character.   
+** First do a basic test to check that the pointer gets moved back the one
+** character, given str1 and str+1 as params.  Then try with both 
+** params being the same pointer, which should return NULL.  Also test 
+** when the first pointer is past the second pointer, which should 
+** return null. Finally try this function on an array of single bytes, 
+** which it assumes are characters and should work in the same fashion.
+**
+**
+**==========================================================================*/
+
+#include <palsuite.h>
+
+/*
+ * Note: it seems like these functions would only be useful if they
+ *   didn't assume a character was equivalent to a single byte. Be that
+ *   as it may, I haven't seen a way to get it to behave otherwise.
+ */
+
+int __cdecl main(int argc, char *argv[])
+{
+    unsigned char *str1 = (unsigned char*) "foo";
+    unsigned char str2[] = {0xC0, 0x80, 0xC0, 0x80, 0};
+    unsigned char str3[] = {0};
+    unsigned char *ret = NULL;
+
+    /*
+     *  Initialize the PAL and return FAIL if this fails
+     */
+    if (0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+
+    ret = _mbsdec(str1,str1+1);
+    if (ret != str1)
+    {
+        Fail ("ERROR: _mbsdec returned %p. Expected %p\n", ret, str1);
+    }
+
+    ret = _mbsdec(str1,str1);
+    if (ret != NULL)
+    {
+        Fail ("ERROR: _mbsdec returned %p. Expected %p\n", ret, NULL);
+    }
+
+    ret = _mbsdec(str1+100,str1);
+    if (ret != NULL)
+    {
+        Fail ("ERROR: _mbsdec returned %p. Expected %p\n", ret, NULL);
+    }
+
+    ret = _mbsdec(str2,str2+1);
+    if (ret != str2)
+    {
+        Fail ("ERROR: _mbsdec returned %p. Expected %p\n", ret, str2+1);
+    }
+
+    ret = _mbsdec(str3,str3+10);
+    if (ret != str3+9)
+    {
+        Fail ("ERROR: _mbsdec returned %p. Expected %p\n", ret, str3+9);
+    }
+
+    PAL_Terminate();
+    return PASS;
+}
+
diff --git a/src/pal/tests/palsuite/c_runtime/_mbsdec/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_mbsdec/test1/testinfo.dat
new file mode 100644
index 0000000000..ce2aa29aa5
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbsdec/test1/testinfo.dat
@@ -0,0 +1,18 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _mbsdec
+Name = Positive Test for _mbsdec
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Ensure that this function moves the string pointer back one character.   
+= First do a basic test to check that the pointer gets moved back the one
+= character, given str1 and str+1 as params.  Then try with both 
+= params being the same pointer, which should return NULL.  Also test 
+= when the first pointer is past the second pointer, which should 
+= return null. Finally try this function on an array of single bytes, 
+= which it assumes are characters and should work in the same fashion.
diff --git a/src/pal/tests/palsuite/c_runtime/_mbsinc/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_mbsinc/CMakeLists.txt
new file mode 100644
index 0000000000..f6aa0cb2d9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbsinc/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_mbsinc/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_mbsinc/test1/CMakeLists.txt
new file mode 100644
index 0000000000..531ba8e793
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbsinc/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_mbsinc_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_mbsinc_test1 coreclrpal)
+
+target_link_libraries(paltest_mbsinc_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_mbsinc/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_mbsinc/test1/test1.c
new file mode 100644
index 0000000000..95a5041af2
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbsinc/test1/test1.c
@@ -0,0 +1,62 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================================
+**
+** Source:  test1.c
+**
+** Purpose:
+** Ensure that this function moves the string pointer ahead one character.
+** First do a basic test to check that the pointer gets moved ahead the one
+** character. Then try with an array of bytes and a NULL array.  Each of 
+** these should still work by returning a pointer to thePointer+1.
+**
+**
+**==========================================================================*/
+
+#include <palsuite.h>
+
+/*
+ * Note: it seems like these functions would only be useful if they
+ *   didn't assume a character was equivalent to a single byte. Be that
+ *   as it may, I haven't seen a way to get it to behave otherwise.
+ */
+
+int __cdecl main(int argc, char *argv[])
+{
+    unsigned char *str1 = (unsigned char*) "foo";
+    unsigned char str2[] = {0xC0, 0x80, 0xC0, 0x80, 0};
+    unsigned char str3[] = {0};
+    unsigned char *ret=NULL;
+
+    /*
+     *  Initialize the PAL and return FAIL if this fails
+     */
+    if (0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+
+    ret = _mbsinc(str1);
+    if (ret != str1 + 1)
+    {
+        Fail ("ERROR: _mbsinc returned %p. Expected %p\n", ret, str1);
+    }
+
+    ret = _mbsinc(str2);
+    if (ret != str2 + 1)
+    {
+        Fail ("ERROR: _mbsinc returned %p. Expected %p\n", ret, str1);
+    }
+
+    ret = _mbsinc(str3);
+    if (ret != str3 + 1)
+    {
+        Fail ("ERROR: _mbsinc returned %p. Expected %p\n", ret, str1);
+    }
+
+    PAL_Terminate();
+    return PASS;
+}
+
diff --git a/src/pal/tests/palsuite/c_runtime/_mbsinc/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_mbsinc/test1/testinfo.dat
new file mode 100644
index 0000000000..3f3883fa31
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbsinc/test1/testinfo.dat
@@ -0,0 +1,15 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _mbsinc
+Name = Positive Test for _mbsinc
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Ensure that this function moves the string pointer ahead one character.
+= First do a basic test to check that the pointer gets moved ahead the one
+= character. Then try with an array of bytes and a NULL array.  Each of 
+= these should still work by returning a pointer to thePointer+1.
diff --git a/src/pal/tests/palsuite/c_runtime/_mbslen/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_mbslen/CMakeLists.txt
new file mode 100644
index 0000000000..f6aa0cb2d9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbslen/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_mbslen/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_mbslen/test1/CMakeLists.txt
new file mode 100644
index 0000000000..38aa6fb16e
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbslen/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_mbslen_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_mbslen_test1 coreclrpal)
+
+target_link_libraries(paltest_mbslen_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_mbslen/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_mbslen/test1/test1.c
new file mode 100644
index 0000000000..fa24c77d8a
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbslen/test1/test1.c
@@ -0,0 +1,66 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*========================================================================
+**
+** Source:  test1.c
+**
+** Purpose:
+** Check the length of a number of arrays.  The first is a normal string
+** which should return its length.  The second has two bytes and a null 
+** character, which only returns a size of 2, and the last is just a NULL
+** array which should return 0.
+**
+**
+**========================================================================*/
+
+#include <palsuite.h>
+
+/*
+ * Note: it seems like these functions would only be useful if they
+ *  didn't assume a character was equivalent to a single byte. Be that
+ *  as it may, I haven't seen a way to get it to behave otherwise
+ *  (eg locale)
+ */
+
+int __cdecl main(int argc, char *argv[])
+{
+    unsigned char *str1 = (unsigned char*) "foo";
+    unsigned char str2[] = {0xC0, 0x80, 0};  /* the char U+0080 */
+    unsigned char str3[] = {0};
+    int ret=0;
+
+    /*
+     *  Initialize the PAL and return FAIL if this fails
+     */
+    if (0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+
+    ret = _mbslen(str1);
+    if (ret != 3)
+    {
+        Fail ("ERROR: _mbslen(\"%s\") returned %d. Expected %d\n",
+                str1, ret, 3);
+    }
+
+    ret = _mbslen(str2);
+    if (ret != 2)
+    {
+        Fail ("ERROR: _mbslen(\"%s\") returned %d. Expected %d\n",
+                str2, ret, 2);
+    }
+
+    ret = _mbslen(str3);
+    if (ret != 0)
+    {
+        Fail ("ERROR: _mbslen(\"%s\") returned %d. Expected %d\n",
+                str3, ret, 0);
+    }
+
+    PAL_Terminate();
+    return PASS;
+}
+
diff --git a/src/pal/tests/palsuite/c_runtime/_mbslen/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_mbslen/test1/testinfo.dat
new file mode 100644
index 0000000000..cf830a7539
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbslen/test1/testinfo.dat
@@ -0,0 +1,15 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _mbsinc
+Name = Positive Test for _mbslen
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Check the length of a number of arrays.  The first is a normal string
+= which should return its length.  The second has two bytes and a null 
+= character, which only returns a size of 2, and the last is just a NULL
+= array which should return 0.
diff --git a/src/pal/tests/palsuite/c_runtime/_mbsninc/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_mbsninc/CMakeLists.txt
new file mode 100644
index 0000000000..f6aa0cb2d9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbsninc/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_mbsninc/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_mbsninc/test1/CMakeLists.txt
new file mode 100644
index 0000000000..7285ce229e
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbsninc/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_mbsninc_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_mbsninc_test1 coreclrpal)
+
+target_link_libraries(paltest_mbsninc_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_mbsninc/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_mbsninc/test1/test1.c
new file mode 100644
index 0000000000..59ef50dcc3
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbsninc/test1/test1.c
@@ -0,0 +1,65 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================================
+**
+** Source:  test1.c
+**
+** Purpose: 
+** Ensure that this functions increases a string pointer by n characters.
+** Use a for loop, and increase the pointer by a different number of characters
+** on each iteration, ensure that it is indeed pointing to the correct location
+** each time.  The second test checks to see if you attempt to increase the 
+** pointer past the end of the string, the pointer should just point at the 
+** last character.
+**
+**
+**==========================================================================*/
+
+#include <palsuite.h>
+
+/*
+ * Note: it seems like these functions would only be useful if they
+ *   didn't assume a character was equivalent to a single byte. Be that
+ *   as it may, I haven't seen a way to get it to behave otherwise.
+ */
+
+int __cdecl main(int argc, char *argv[])
+{
+    unsigned char str[] = {0xC0, 0x80, 0xC0, 0x80, 0};
+    int i=0;
+    unsigned char *ret=NULL;
+
+    /*
+     *  Initialize the PAL and return FAIL if this fails
+     */
+    if (0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+
+    for (i=0; i<5; i++)
+    {
+        ret = _mbsninc(str, i);
+        if (ret != str + i)
+        {
+            Fail ("ERROR: _mbsninc returned %p. Expected %p\n", ret, str+i);
+        }
+    }
+
+    /* 
+     * trying to advance past the end of the string should just 
+     * return the end. 
+     */
+    ret = _mbsninc(str, 5);
+    if (ret != str + 4)
+    {
+        Fail ("ERROR: _mbsninc returned %p. Expected %p\n", ret, str+4);
+    }
+
+
+    PAL_Terminate();
+    return PASS;
+}
+
diff --git a/src/pal/tests/palsuite/c_runtime/_mbsninc/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_mbsninc/test1/testinfo.dat
new file mode 100644
index 0000000000..b855222af9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_mbsninc/test1/testinfo.dat
@@ -0,0 +1,17 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _mbsninc
+Name = Positive Test for _mbsninc
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Ensure that this functions increases a string pointer by n characters.
+= Use a for loop, and increase the pointer by a different number of characters
+= on each iteration, ensure that it is indeed pointing to the correct location
+= each time.  The second test checks to see if you attempt to increase the 
+= pointer past the end of the string, the pointer should just point at the 
+= last character.
diff --git a/src/pal/tests/palsuite/c_runtime/_open_osfhandle/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/CMakeLists.txt
new file mode 100644
index 0000000000..ef14ea5352
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/CMakeLists.txt
@@ -0,0 +1,5 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+add_subdirectory(test2)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test1/CMakeLists.txt
new file mode 100644
index 0000000000..e9a3e29192
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_open_osfhandle_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_open_osfhandle_test1 coreclrpal)
+
+target_link_libraries(paltest_open_osfhandle_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test1/test1.c
new file mode 100644
index 0000000000..ee2c8ea418
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test1/test1.c
@@ -0,0 +1,132 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*=====================================================================
+**
+** Source:  test1.c (_open_osfhandle)
+**
+** Purpose: Tests the PAL implementation of the _open_osfhandle function. 
+**          This API accepts a OS Handle returned from CreatePipe() and
+**          a flag of _O_RDONLY and returns a C Run-Time handle. The test
+**          will write to the pipe and pass the C Run-Time handle to _fdopen
+**          to open the Read Handle to compare what was written with what
+**          was wrote. They should be the same.
+**
+** Depends: CreatePipe
+**          WriteFile
+**          _fdopen
+**          fread
+**          memcmp
+**          fclose
+**          strlen
+**          CloseHandle
+**
+**
+**===================================================================*/
+
+#include <palsuite.h>
+
+const char* cTestString = "one fish, two fish, red fish, blue fish.";
+
+int __cdecl main(int argc, char **argv)
+{
+    HANDLE  hReadPipe   = NULL;
+    HANDLE  hWritePipe  = NULL;
+    BOOL    bRetVal     = FALSE;
+    int     iFiledes    = 0;
+    DWORD   dwBytesWritten;
+    char    buffer[45];
+    FILE    *fp;
+    size_t  len;
+
+    SECURITY_ATTRIBUTES lpPipeAttributes;
+
+    /*Initialize the PAL*/
+    if ((PAL_Initialize(argc, argv)) != 0)
+    {
+        return (FAIL);
+    }
+
+    /*Setup SECURITY_ATTRIBUTES structure for CreatePipe*/
+    lpPipeAttributes.nLength              = sizeof(lpPipeAttributes); 
+    lpPipeAttributes.lpSecurityDescriptor = NULL; 
+    lpPipeAttributes.bInheritHandle       = TRUE; 
+
+    /*Create a Pipe*/
+    bRetVal = CreatePipe(&hReadPipe,      /* read handle*/
+                &hWritePipe,              /* write handle */
+                &lpPipeAttributes,        /* security attributes*/
+                0);                       /* pipe size*/
+    if (bRetVal == FALSE)
+    {
+        Fail("ERROR: unable to create pipe");
+    }
+
+    /*Write to the write pipe handle*/
+    bRetVal = WriteFile(hWritePipe,         /* handle to file*/
+                        cTestString,        /* data buffer*/
+                        strlen(cTestString),/* number of bytes to write*/
+                        &dwBytesWritten,    /* number of bytes written*/
+                        NULL);              /* overlapped buffer*/
+    if (bRetVal == FALSE)
+    {
+        Fail("ERROR: unable to write to pipe write handle "
+                "hWritePipe=0x%lx", hWritePipe);
+    }
+
+    /*Test to see if the WriteFile wrote the correct amount*/
+    if(dwBytesWritten != strlen(cTestString))
+    {
+        Fail("Error: WriteFile wrote \"%d\", should have written \"%d\\n",
+             dwBytesWritten, strlen(cTestString));
+    }
+
+    /*Get a file descriptor for the read pipe handle.
+     *This is what we are testing.*/
+    iFiledes = _open_osfhandle((long)hReadPipe, _O_RDONLY);
+    if (iFiledes == -1)
+    {
+        Fail("ERROR: _open_osfhandle failed to open "
+             " hReadPipe=0x%lx", hReadPipe);
+    }
+    
+    /*Open read pipe handle in read mode.
+     *Verify that we have returned a correct,
+     *C Run-time handle*/
+    fp = _fdopen(iFiledes, "r");
+    if (fp == NULL)
+    {
+        Fail("ERROR: unable to fdopen file descriptor"
+             " iFiledes=%d", iFiledes);
+    }
+
+    /*Read from the read pipe handle*/
+    len = fread(buffer, sizeof(char), strlen(cTestString), fp);
+    if((len == 0) || (len != strlen(cTestString)))
+    {
+        Fail("ERROR: Unable to read from file stream fp=0x%lx\n", fp);
+    }
+
+    /*Compare what was read with what was written.*/
+    if ((memcmp(cTestString, buffer, strlen(cTestString))) != 0)
+    {
+        Fail("ERROR: read \"%s\" expected \"%s\" \n", buffer, cTestString);
+    }
+
+    /*Close write pipe handle*/
+    if (CloseHandle(hWritePipe) == 0)
+    {
+        Fail("ERROR: Unable to close write pipe handle "
+             "hWritePipe=0x%lx", hWritePipe);
+    }
+    
+    if ((fclose(fp)) != 0)
+    {
+        Fail("ERROR: Unable to close C-Runtime handle "
+             "iFilesdes=%d", iFiledes);
+    }
+
+    PAL_Terminate();
+    return (PASS);
+}
diff --git a/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test1/testinfo.dat
new file mode 100644
index 0000000000..16317bb188
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test1/testinfo.dat
@@ -0,0 +1,17 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _open_osfhandle
+Name = Test for _open_osfhandle
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Tests the PAL implementation of the _open_osfhandle function.
+= This API accepts a OS Handle returned from CreatePipe() and
+= a flag of _O_RDONLY and returns a C Run-Time handle. The test
+= will write to the pipe and pass the C Run-Time handle to _fdopen
+= to open the Read Handle to compare what was written with what
+= was wrote. They should be the same.
diff --git a/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test2/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test2/CMakeLists.txt
new file mode 100644
index 0000000000..1031ec1df9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test2/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test2.c
+)
+
+add_executable(paltest_open_osfhandle_test2
+  ${SOURCES}
+)
+
+add_dependencies(paltest_open_osfhandle_test2 coreclrpal)
+
+target_link_libraries(paltest_open_osfhandle_test2
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test2/test2.c b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test2/test2.c
new file mode 100644
index 0000000000..6c756b177a
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test2/test2.c
@@ -0,0 +1,86 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*=====================================================================
+**
+** Source:  test2.c (_open_osfhandle)
+**
+** Purpose: Tests the PAL implementation of the _open_osfhandle function.
+**          This API accepts a OS Handle returned from CreatePipe() and
+**          a flag of _O_RDONLY and returns a C Run-Time handle. The test
+**          will pass a NULL handle, and unsupported flags. All cases
+**          should fail.
+**
+** Depends: CreatePipe
+**          CloseHandle
+**
+**
+**===================================================================*/
+
+#include <palsuite.h>
+
+int __cdecl main(int argc, char **argv)
+{
+    HANDLE  hReadPipe   = NULL;
+    HANDLE  hWritePipe   = NULL;
+    BOOL    bRetVal     = FALSE;
+    int     iFiledes    = 0;
+    
+    SECURITY_ATTRIBUTES lpPipeAttributes;
+
+    /*Initialize the PAL*/
+    if ((PAL_Initialize(argc, argv)) != 0)
+    {
+        return (FAIL);
+    }
+
+    /*Setup SECURITY_ATTRIBUTES structure for CreatePipe*/
+    lpPipeAttributes.nLength              = sizeof(lpPipeAttributes); 
+    lpPipeAttributes.lpSecurityDescriptor = NULL; 
+    lpPipeAttributes.bInheritHandle       = TRUE; 
+
+    /*Create a Pipe*/
+    bRetVal = CreatePipe(&hReadPipe,      /* read handle*/
+                &hWritePipe,              /* write handle */
+                &lpPipeAttributes,        /* security attributes*/
+                0);                       /* pipe size*/
+    if (bRetVal == FALSE)
+    {
+        Fail("ERROR: unable to create pipe");
+    }
+    
+    /*Close write pipe handle*/
+    if (CloseHandle(hWritePipe) == 0)
+    {
+        Fail("ERROR: Unable to close write pipe handle "
+             "hWritePipe=0x%lx", hWritePipe);
+    }
+    
+    /*Close read pipe handle*/
+    if (CloseHandle(hReadPipe) == 0)
+    {
+        Fail("ERROR: Unable to close read pipe handle "
+             "hReadPipe=0x%lx", hReadPipe);
+    }
+    
+    /*Test with a Closed handle and supported flag _O_RDONLY*/
+    iFiledes = _open_osfhandle((long)hReadPipe, _O_RDONLY);
+    if (iFiledes != -1)
+    {
+        Fail("ERROR: _open_osfhandle successfullly opened "
+             " hReadPipe which was closed, with _O_RDONLY");
+    }
+
+    /*Test with a NULL handle and supported flag _O_RDONLY*/
+    hReadPipe = NULL;
+    iFiledes = _open_osfhandle((long)hReadPipe, _O_RDONLY);
+    if (iFiledes != -1)
+    {
+        Fail("ERROR: _open_osfhandle successfullly opened "
+             " hReadPipe=NULL with _O_RDONLY");
+    }
+    
+    PAL_Terminate();
+    return (PASS);
+}
diff --git a/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test2/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test2/testinfo.dat
new file mode 100644
index 0000000000..822e23fedd
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test2/testinfo.dat
@@ -0,0 +1,16 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _open_osfhandle
+Name = Fail test for _open_osfhandle
+TYPE = DEFAULT
+EXE1 = test2
+Description
+= Tests the PAL implementation of the _open_osfhandle function.
+= This API accepts a OS Handle returned from CreatePipe() and
+= a flag of _O_RDONLY and returns a C Run-Time handle. The test
+= will pass a NULL handle, and unsupported flags. All cases
+= should fail.
diff --git a/src/pal/tests/palsuite/c_runtime/_putenv/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_putenv/CMakeLists.txt
new file mode 100644
index 0000000000..a3847f8ca9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putenv/CMakeLists.txt
@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+add_subdirectory(test2)
+add_subdirectory(test3)
+add_subdirectory(test4)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_putenv/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_putenv/test1/CMakeLists.txt
new file mode 100644
index 0000000000..0a75b41113
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putenv/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_putenv_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_putenv_test1 coreclrpal)
+
+target_link_libraries(paltest_putenv_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_putenv/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_putenv/test1/test1.c
new file mode 100644
index 0000000000..2d096adc78
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putenv/test1/test1.c
@@ -0,0 +1,99 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*=====================================================================
+**
+** Source:  test1.c
+**
+** Purpose:  Create an environment variable with _putenv and then use getenv 
+** to check it.  Check that we get the expected errors with invalid input.
+**
+**
+**===================================================================*/
+
+#include <palsuite.h>
+
+struct TestElement
+{
+    char _putenvString[1024];    /* argument string sent to putenv        */  
+    char varName[1024];          /* variable component of argument string */
+    char varValue[1024];         /* value component of argument string    */
+    BOOL bValidString;           /* valid argument string identifier      */
+};
+
+struct TestElement TestCases[] = 
+{
+    {"PalTestingEnvironmentVariable=A value", "PalTestingEnvironmentVariable",
+     "A value", TRUE},
+    {"AnotherVariable=", "AnotherVariable", "", TRUE},
+    {"YetAnotherVariable", "", "", FALSE},
+    {"=ADifferentVariable", "", "ADifferentVariable", FALSE},
+    {"", "", "", FALSE}
+
+};
+
+int __cdecl main(int argc, char **argv)
+{
+
+    int i;
+    char *variableValue;
+   
+    if (0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+    
+    for (i = 0; i < (sizeof(TestCases)/sizeof(struct TestElement)) ; i++) 
+    {
+        if((_putenv(TestCases[i]._putenvString) == -1) && 
+           ( TestCases[i].bValidString == TRUE))
+        {
+            Fail("ERROR: _putenv failed to set an environment "
+                 "variable with a valid format.\n  Call was"
+                 "_putenv(%s)\n", TestCases[i]._putenvString);
+        }
+        /* 
+         * For valid _putenvString values, check to see the variable was set
+         */
+        if (TestCases[i].bValidString == TRUE)
+        {       
+            variableValue = getenv(TestCases[i].varName);
+        
+            if (variableValue == NULL)
+            { 
+                if (*TestCases[i].varValue != '\0')
+                {
+                    Fail("ERROR: getenv(%s) call returned NULL.\nThe call "
+                         "should have returned \"%s\"\n", TestCases[i].varName
+                         , TestCases[i].varValue);
+                }
+            }  
+            else if ( strcmp(variableValue, TestCases[i].varValue) != 0) 
+            {
+                Fail("ERROR: _putenv(%s)\nshould have set the variable "
+                     "%s\n to \"%s\".\nA subsequent call to getenv(%s)\n"
+                     "returned \"%s\" instead.\n", TestCases[i]._putenvString
+                     , TestCases[i].varName, TestCases[i].varValue
+                     , TestCases[i].varName, variableValue);
+            }
+        }
+        else 
+            /*
+             * Check to see that putenv fails for malformed _putenvString values
+             */
+        {
+            variableValue = getenv(TestCases[i].varName);
+        
+            if (variableValue != NULL)
+            { 
+                Fail("ERROR: getenv(%s) call should have returned NULL.\n"
+                     "Instead it returned \"%s\".\n", TestCases[i].varName
+                     , TestCases[i].varValue);
+            }
+        }
+    }
+
+    PAL_Terminate();
+    return PASS;
+}
diff --git a/src/pal/tests/palsuite/c_runtime/_putenv/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_putenv/test1/testinfo.dat
new file mode 100644
index 0000000000..d0978184fc
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putenv/test1/testinfo.dat
@@ -0,0 +1,13 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _putenv
+Name = Positive test for _putenv
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Create an environment variable with _putenv and then use getenv to
+= check it.  Check that we get the expected errors with invalid input.
diff --git a/src/pal/tests/palsuite/c_runtime/_putenv/test2/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_putenv/test2/CMakeLists.txt
new file mode 100644
index 0000000000..e0539681cd
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putenv/test2/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test2.c
+)
+
+add_executable(paltest_putenv_test2
+  ${SOURCES}
+)
+
+add_dependencies(paltest_putenv_test2 coreclrpal)
+
+target_link_libraries(paltest_putenv_test2
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_putenv/test2/test2.c b/src/pal/tests/palsuite/c_runtime/_putenv/test2/test2.c
new file mode 100644
index 0000000000..39be4f68b4
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putenv/test2/test2.c
@@ -0,0 +1,76 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*=====================================================================
+**
+** Source:  test2.c
+**
+** Purpose:  Create an environment variable with _putenv and then use getenv 
+** to check it.  This test resets an environment variable.
+**
+**
+**===================================================================*/
+
+#include <palsuite.h>
+
+const char *_putenvString0 = "AnUnusualVariable=AnUnusualValue";
+const char *_putenvString1 = "AnUnusualVariable=";
+const char *variable = "AnUnusualVariable";
+const char *value = "AnUnusualValue";
+
+int __cdecl main(int argc, char **argv)
+{
+   
+    char *variableValue;
+
+    if (0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+
+    if(_putenv(_putenvString0) == -1)
+    {
+        Fail("ERROR: _putenv failed to set an environment "
+             "variable with a valid format.\n  Call was"
+             "_putenv(%s)\n", _putenvString0);
+    }
+
+    variableValue = getenv(variable);
+    
+    if (variableValue == NULL)
+    { 
+        Fail("ERROR: getenv(%s) call returned NULL\nThe call "
+             "should have returned '%s'\n", variable, value);
+    }  
+    else 
+    {
+        if ( strcmp(variableValue, value) != 0 ) 
+        {
+            Fail("ERROR: _putenv(%s)\nshould have set the variable "
+                 "'%s'\n to '%s'.\nA subsequent call to getenv(%s)\n"
+                 "returned '%s' instead.\n", _putenvString0,
+                 variable, value, variable, variableValue);
+        }
+        else 
+        {
+            if(_putenv(_putenvString1) == -1)
+            {
+                Fail("ERROR: _putenv failed to set an environment "
+                     "variable with a valid format.\n  Call was"
+                     "_putenv(%s)\n", _putenvString1);
+            }
+
+            variableValue = getenv(variable);
+
+            if (variableValue != NULL)
+            { 
+                Fail("ERROR: getenv(%s) call did not return NULL.\nThe call "
+                     "returned '%s'.\n", variable, value);
+            }
+        }
+    }
+    
+    PAL_Terminate();
+    return PASS;
+}
diff --git a/src/pal/tests/palsuite/c_runtime/_putenv/test2/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_putenv/test2/testinfo.dat
new file mode 100644
index 0000000000..8d3a6ced1e
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putenv/test2/testinfo.dat
@@ -0,0 +1,13 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _putenv
+Name = Positive test for _putenv
+TYPE = DEFAULT
+EXE1 = test2
+Description
+= Create an environment variable with _putenv and then use getenv to
+= check it.  This test resets an environment variable.
diff --git a/src/pal/tests/palsuite/c_runtime/_putenv/test3/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_putenv/test3/CMakeLists.txt
new file mode 100644
index 0000000000..a67241022b
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putenv/test3/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test3.c
+)
+
+add_executable(paltest_putenv_test3
+  ${SOURCES}
+)
+
+add_dependencies(paltest_putenv_test3 coreclrpal)
+
+target_link_libraries(paltest_putenv_test3
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_putenv/test3/test3.c b/src/pal/tests/palsuite/c_runtime/_putenv/test3/test3.c
new file mode 100644
index 0000000000..8aa6777307
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putenv/test3/test3.c
@@ -0,0 +1,102 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*=====================================================================
+**
+** Source:  test3.c
+**
+** Purpose: Create environment variables that differ only in Case, and
+**          verify that the BSD operating system treats the variables
+**          differently.
+**
+**
+**===================================================================*/
+
+#include <palsuite.h>
+
+int __cdecl main(int argc, char **argv)
+{
+#if WIN32
+
+    return PASS;
+
+#else
+
+    const char* FirstVariable = "PalTestingEnvironmentVariable=The value";
+    const char* SecondVariable = "PALTESTINGEnvironmentVariable=Different value";
+    const char* FirstVarName = "PalTestingEnvironmentVariable";
+    const char* FirstVarValue = "The value";
+    char* result;
+
+   
+    if (0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+    
+    /* Use _putenv to set an environment variable.  This ensures that the
+       variable we're testing on is always present.
+    */
+
+    if(_putenv(FirstVariable) != 0)
+    {
+        Fail("ERROR: _putenv failed to set an environment variable that "
+             "getenv will be using for testing.\n");
+    }
+
+
+    /* Call getenv -- ensure it doesn't return NULL and the string it returns
+       is the value we set above. Also make sure that each environment variable,
+       differing only by case, returns it's own value.
+    */
+    
+    result = getenv(FirstVarName);
+    if(result == NULL)
+    {
+        Fail("ERROR: The result of getenv on a valid Environment Variable "
+             "was NULL, which indicates the environment varaible was not "
+             "found.\n");
+    }
+
+    if(strcmp(result, FirstVarValue) != 0)
+    {
+        Fail("ERROR: The value obtained by getenv() was not equal to the "
+             "correct value of the environment variable.  The correct "
+             "value is '%s' and the function returned '%s'.\n",
+             FirstVarValue,
+             result);
+    }
+    
+    /* Set the second environment variable, which only differs in Case */
+    if(_putenv(SecondVariable) != 0)
+    {
+        Fail("ERROR: _putenv failed to set an environment variable that "
+             "getenv will be using for testing.\n");
+    }
+
+    /* Verify that the environment variables
+    */
+    
+    result = getenv(FirstVarName);
+    if(result == NULL)
+    {
+        Fail("ERROR: The result of getenv on a valid Environment Variable "
+             "was NULL, which indicates the environment varaible was not "
+             "found.\n");
+    }
+
+    if(strcmp(result, FirstVarValue) != 0)
+    {
+        Fail("ERROR: The value obtained by getenv() was not equal to the "
+             "correct value of the environment variable.  The correct "
+             "value is '%s' and the function returned '%s'.\n",
+             FirstVarValue,
+             result);
+    }
+
+    PAL_Terminate();
+    return PASS;
+
+#endif
+}
diff --git a/src/pal/tests/palsuite/c_runtime/_putenv/test3/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_putenv/test3/testinfo.dat
new file mode 100644
index 0000000000..2c6af1b5cf
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putenv/test3/testinfo.dat
@@ -0,0 +1,14 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _putenv
+Name = Positive test for _putenv
+TYPE = DEFAULT
+EXE1 = test3
+Description
+= Create environment variables that only differ by case
+= and check that the BSD operating system treats them 
+= as two separate variables.
diff --git a/src/pal/tests/palsuite/c_runtime/_putenv/test4/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_putenv/test4/CMakeLists.txt
new file mode 100644
index 0000000000..518282ccc7
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putenv/test4/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test4.c
+)
+
+add_executable(paltest_putenv_test4
+  ${SOURCES}
+)
+
+add_dependencies(paltest_putenv_test4 coreclrpal)
+
+target_link_libraries(paltest_putenv_test4
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_putenv/test4/test4.c b/src/pal/tests/palsuite/c_runtime/_putenv/test4/test4.c
new file mode 100644
index 0000000000..48d7ba963c
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putenv/test4/test4.c
@@ -0,0 +1,75 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*=====================================================================
+**
+** Source:  test4.c
+**
+** Purpose: Create an environment variable and try to retrieve
+**          it using the same name but with different case.  This
+**          is to show that the Win32 representation of _putenv
+**          is case insensitive.
+**
+**
+**===================================================================*/
+
+#include <palsuite.h>
+
+int __cdecl main(int argc, char **argv)
+{
+#if WIN32
+
+    const char* FirstVariable = "PalTestingEnvironmentVariable=The value";
+    const char* ModifiedName = "PALTESTINGEnvironmentVariable";
+    const char* FirstVarValue = "The value";
+    char* result;
+
+   
+    if (0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+    
+    /* Use _putenv to set an environment variable.  This ensures that the
+       variable we're testing on is always present.
+    */
+
+    if(_putenv(FirstVariable) != 0)
+    {
+        Fail("ERROR: _putenv failed to set an environment variable that "
+             "getenv will be using for testing.\n");
+    }
+
+
+    /* Call getenv -- ensure it doesn't return NULL and the string it returns
+       is the value we set above. Also make sure that each environment variable,
+       differing only by case, doesn't affect the return value.
+    */
+    
+    result = getenv(ModifiedName);
+    if(result == NULL)
+    {
+        Fail("ERROR: The result of getenv on a valid Environment Variable "
+             "was NULL, which indicates the environment varaible was not "
+             "found.\n");
+    }
+
+    if(strcmp(result, FirstVarValue) != 0)
+    {
+        Fail("ERROR: The value obtained by getenv() was not equal to the "
+             "correct value of the environment variable.  The correct "
+             "value is '%s' and the function returned '%s'.\n",
+             FirstVarValue,
+             result);
+    }
+    
+
+    PAL_Terminate();
+    return PASS;
+
+#else
+    return PASS;
+
+#endif
+}
diff --git a/src/pal/tests/palsuite/c_runtime/_putenv/test4/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_putenv/test4/testinfo.dat
new file mode 100644
index 0000000000..af1a01c2fc
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putenv/test4/testinfo.dat
@@ -0,0 +1,14 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _putenv
+Name = Positive test for _putenv
+TYPE = DEFAULT
+EXE1 = test4
+Description
+= Create an environment variable and check
+= that trying to retrieve it using a name with different
+= case, returns the correct value.
diff --git a/src/pal/tests/palsuite/c_runtime/_putw/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_putw/CMakeLists.txt
new file mode 100644
index 0000000000..f6aa0cb2d9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putw/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_putw/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_putw/test1/CMakeLists.txt
new file mode 100644
index 0000000000..c3018ad322
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putw/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.c
+)
+
+add_executable(paltest_putw_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_putw_test1 coreclrpal)
+
+target_link_libraries(paltest_putw_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_putw/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_putw/test1/test1.c
new file mode 100644
index 0000000000..ecfc9046ac
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putw/test1/test1.c
@@ -0,0 +1,112 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================================
+**
+** Source:  test1.c
+**
+** Purpose: Writes a series of integers to a file, test.dat,
+**          then verifies the results.
+**
+** Dependency: fopen(...)
+**             fclose(...)
+**             CloseHandle(...) 
+**             DeleteFileA(...)
+**             _getw(...)
+**
+**
+**
+**==========================================================================*/
+
+
+#include <palsuite.h>
+
+const char testFileName[] = "test.dat";
+
+static void Cleanup(HANDLE hFile)
+{
+    if (fclose(hFile))
+    {
+        Trace("_putw: ERROR -> Unable to close file \"%s\".\n", 
+            testFileName);
+    }
+    if (!DeleteFileA(testFileName))
+    {
+        Trace("_putw: ERROR -> Unable to delete file \"%s\". ", 
+            "GetLastError returned %u.\n", 
+            testFileName,
+            GetLastError());
+    }
+}
+
+
+int __cdecl main(int argc, char **argv)
+{
+
+    FILE * pfTest = NULL;
+    int  testArray[] = {0,1,-1,0x7FFFFFFF,0x80000000,0xFFFFFFFF,0xFFFFAAAA};
+    int  i = 0;
+    int  retValue = 0;
+
+    /*
+     *  Initialize the PAL and return FAIL if this fails
+     */
+    if (0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+
+    /*write the file that we will use to test */
+    pfTest = fopen(testFileName, "w");
+    if (pfTest == NULL)
+    {
+        Fail ("Unable to write test file.\n");
+    }
+
+    for (i = 0; i < sizeof(testArray)/sizeof(int) ; i++)
+    {
+        _putw(testArray[i], pfTest);
+
+        if( ferror( pfTest ) )        
+    {
+            Cleanup(pfTest);
+            Fail( "Error:in _putw -> error has occurred in the "
+                "stream while writing to the file: \"test.dat\"\n");
+        }
+      
+    }
+
+    if (fclose(pfTest) != 0)
+    {
+        Cleanup(pfTest);
+        Fail ("Error closing file after writing with _putw(..).\n");
+    }
+
+    /*open the new test file and compare*/
+    pfTest = fopen(testFileName, "r");
+    if (pfTest == NULL)
+    {
+        Fail ("Error opening \"%s\", which is odd, since I just finished "
+                "creating that file.\n", testFileName);
+    }
+    retValue =_getw( pfTest );
+    i = 0;
+    while(retValue != EOF)
+    {
+        if(retValue != testArray[i])
+        {
+            Cleanup(pfTest);
+            Fail ("Integers written by _putw are not in the correct format\n",
+                testFileName);
+        }
+        retValue = _getw( pfTest );
+        i++ ;
+    }
+
+    Cleanup(pfTest);  
+    PAL_Terminate();
+    return PASS;
+}
+
+
diff --git a/src/pal/tests/palsuite/c_runtime/_putw/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_putw/test1/testinfo.dat
new file mode 100644
index 0000000000..3007b82407
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_putw/test1/testinfo.dat
@@ -0,0 +1,13 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _putw
+Name = Positive test for _putw
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Several integers are written to a new file using _putw.  This file is
+= closed, reopened and read from to verify the writes were successful.
diff --git a/src/pal/tests/palsuite/c_runtime/_rotl/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_rotl/CMakeLists.txt
new file mode 100644
index 0000000000..f6aa0cb2d9
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_rotl/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+add_subdirectory(test1)
+
diff --git a/src/pal/tests/palsuite/c_runtime/_rotl/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_rotl/test1/CMakeLists.txt
new file mode 100644
index 0000000000..bafaa23732
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_rotl/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+  test1.cpp
+)
+
+add_executable(paltest_rotl_test1
+  ${SOURCES}
+)
+
+add_dependencies(paltest_rotl_test1 coreclrpal)
+
+target_link_libraries(paltest_rotl_test1
+  pthread
+  m
+  coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_rotl/test1/test1.cpp b/src/pal/tests/palsuite/c_runtime/_rotl/test1/test1.cpp
new file mode 100644
index 0000000000..3a31388893
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_rotl/test1/test1.cpp
@@ -0,0 +1,55 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*=====================================================================
+**
+** Source:  test1.c (_rotl)
+**
+** Purpose: Tests the PAL implementation of the _rotl function. 
+**          The _rotl function rotates the unsigned value. _rotl
+**          rotates the value left and "wraps" bits rotated off 
+**          one end of value to the other end.  
+**          This test compares the result to a previously determined
+**          value.
+**          
+**
+**
+**===================================================================*/
+#include <palsuite.h>
+
+int __cdecl main(int argc, char **argv)
+{
+    unsigned results = 0;
+    int i,j;
+   
+    unsigned hTestNums[5][8] = {
+        {0x00ff, 0x01fe, 0x03fc, 0x07f8, 0x0ff0, 0x1fe0, 0x3fc0, 0x7f80},
+        {0x0055, 0x00aa, 0x0154, 0x02a8, 0x0550, 0x0aa0, 0x1540, 0x2a80},
+        {0x0099, 0x0132, 0x0264, 0x04c8, 0x0990, 0x1320, 0x2640, 0x4c80},
+        {0x0036, 0x006c, 0x00d8, 0x01b0, 0x0360, 0x06c0, 0x0d80, 0x1b00},
+        {0x008f, 0x011e, 0x023c, 0x0478, 0x08f0, 0x11e0, 0x23c0, 0x4780}};
+  
+    if ((PAL_Initialize(argc, argv)) != 0)
+    {
+        return (FAIL);
+    }
+
+    /*Loop through expected test results*/
+    for (j = 0; j <= 4; j++)
+    {
+        for(i = 1; i <= 7; i++)
+        {
+            results = _rotl(hTestNums[j][0], i);
+            if (results != hTestNums[j][i])
+            {
+                Fail("ERROR: \"0x%4.4x\" rotated bits to the left %d times"
+                    " gave \"0x%4.4x\", expected \"0x%4.4x\"\n", 
+                    hTestNums[j][0], i, results, hTestNums[j][i]) ;
+            }
+        }
+    }
+
+    PAL_Terminate();
+    return (PASS);
+}
diff --git a/src/pal/tests/palsuite/c_runtime/_rotl/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_rotl/test1/testinfo.dat
new file mode 100644
index 0000000000..9c87473f8e
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_rotl/test1/testinfo.dat
@@ -0,0 +1,17 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _rtol
+Name = Positive Test for _rotl
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Tests the PAL implementation of the _ro