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Diffstat (limited to 'src/pal/tests/palsuite/c_runtime/_open_osfhandle/test1/test1.cpp')
-rw-r--r-- | src/pal/tests/palsuite/c_runtime/_open_osfhandle/test1/test1.cpp | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test1/test1.cpp b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test1/test1.cpp new file mode 100644 index 0000000000..ee2c8ea418 --- /dev/null +++ b/src/pal/tests/palsuite/c_runtime/_open_osfhandle/test1/test1.cpp @@ -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); +} |