[CVE-2015-8948] Use getline instead of fgets with fixed-size buffer

http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=570e68886c41c2e765e6218cb317d9a9a447a041

Change-Id: Ie16fe3755569f3d653246cf0560df71abdc12fd9

13 files changed, 956 insertions, 172 deletions

diff --git a/gl/Makefile.am b/gl/Makefile.am
index 86af82b..a53bbc3 100644
--- a/gl/Makefile.am
+++ b/gl/Makefile.am
@@ -21,7 +21,7 @@
 # the same distribution terms as the rest of that program.
 #
 # Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --dir=. --local-dir=gl/override --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --tests-base=gltests --aux-dir=build-aux --with-tests --avoid=binary-io-tests --avoid=fcntl-h-tests --avoid=stdlib-tests --avoid=string-tests --avoid=sys_stat-tests --avoid=time-tests --avoid=unistd-tests --avoid=update-copyright-tests --avoid=wchar-tests --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files autobuild csharpcomp-script csharpexec-script error fdl-1.3 gendocs getopt-gnu gnupload gpl-3.0 lgpl-2.1 maintainer-makefile manywarnings pmccabe2html progname update-copyright useless-if-before-free valgrind-tests vc-list-files version-etc warnings
+# Reproduce by: gnulib-tool --import --dir=. --local-dir=gl/override --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --tests-base=gltests --aux-dir=build-aux --with-tests --avoid=fcntl-h-tests --avoid=stdlib-tests --avoid=string-tests --avoid=sys_stat-tests --avoid=time-tests --avoid=unistd-tests --avoid=update-copyright-tests --avoid=wchar-tests --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files autobuild csharpcomp-script csharpexec-script error fdl-1.3 gendocs getline getopt-gnu gnupload maintainer-makefile manywarnings pmccabe2html progname update-copyright useless-if-before-free valgrind-tests vc-list-files version-etc warnings
 
 AUTOMAKE_OPTIONS = 1.5 gnits
 
@@ -116,6 +116,24 @@ EXTRA_DIST += $(top_srcdir)/build-aux/gendocs.sh
 
 ## end   gnulib module gendocs
 
+## begin gnulib module getdelim
+
+
+EXTRA_DIST += getdelim.c
+
+EXTRA_libgnu_la_SOURCES += getdelim.c
+
+## end   gnulib module getdelim
+
+## begin gnulib module getline
+
+
+EXTRA_DIST += getline.c
+
+EXTRA_libgnu_la_SOURCES += getline.c
+
+## end   gnulib module getline
+
 ## begin gnulib module getopt-posix
 
 BUILT_SOURCES += $(GETOPT_H)
@@ -210,6 +228,26 @@ libgnu_la_SOURCES += progname.h progname.c
 
 ## end   gnulib module progname
 
+## begin gnulib module realloc-posix
+
+EXTRA_DIST += realloc.c
+
+EXTRA_libgnu_la_SOURCES += realloc.c
+
+## end   gnulib module realloc-posix
+
+## begin gnulib module snippet/_Noreturn
+
+# Because this Makefile snippet defines a variable used by other
+# gnulib Makefile snippets, it must be present in all Makefile.am that
+# need it. This is ensured by the applicability 'all' defined above.
+
+_NORETURN_H=$(top_srcdir)/build-aux/snippet/_Noreturn.h
+
+EXTRA_DIST += $(top_srcdir)/build-aux/snippet/_Noreturn.h
+
+## end   gnulib module snippet/_Noreturn
+
 ## begin gnulib module snippet/arg-nonnull
 
 # The BUILT_SOURCES created by this Makefile snippet are not used via #include
@@ -307,6 +345,56 @@ EXTRA_DIST += stdarg.in.h
 
 ## end   gnulib module stdarg
 
+## begin gnulib module stdint
+
+BUILT_SOURCES += $(STDINT_H)
+
+# We need the following in order to create <stdint.h> when the system
+# doesn't have one that works with the given compiler.
+if GL_GENERATE_STDINT_H
+stdint.h: stdint.in.h $(top_builddir)/config.status
+	$(AM_V_GEN)rm -f $@-t $@ && \
+	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
+	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
+	      -e 's/@''HAVE_STDINT_H''@/$(HAVE_STDINT_H)/g' \
+	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
+	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
+	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
+	      -e 's|@''NEXT_STDINT_H''@|$(NEXT_STDINT_H)|g' \
+	      -e 's/@''HAVE_SYS_TYPES_H''@/$(HAVE_SYS_TYPES_H)/g' \
+	      -e 's/@''HAVE_INTTYPES_H''@/$(HAVE_INTTYPES_H)/g' \
+	      -e 's/@''HAVE_SYS_INTTYPES_H''@/$(HAVE_SYS_INTTYPES_H)/g' \
+	      -e 's/@''HAVE_SYS_BITYPES_H''@/$(HAVE_SYS_BITYPES_H)/g' \
+	      -e 's/@''HAVE_WCHAR_H''@/$(HAVE_WCHAR_H)/g' \
+	      -e 's/@''HAVE_LONG_LONG_INT''@/$(HAVE_LONG_LONG_INT)/g' \
+	      -e 's/@''HAVE_UNSIGNED_LONG_LONG_INT''@/$(HAVE_UNSIGNED_LONG_LONG_INT)/g' \
+	      -e 's/@''APPLE_UNIVERSAL_BUILD''@/$(APPLE_UNIVERSAL_BUILD)/g' \
+	      -e 's/@''BITSIZEOF_PTRDIFF_T''@/$(BITSIZEOF_PTRDIFF_T)/g' \
+	      -e 's/@''PTRDIFF_T_SUFFIX''@/$(PTRDIFF_T_SUFFIX)/g' \
+	      -e 's/@''BITSIZEOF_SIG_ATOMIC_T''@/$(BITSIZEOF_SIG_ATOMIC_T)/g' \
+	      -e 's/@''HAVE_SIGNED_SIG_ATOMIC_T''@/$(HAVE_SIGNED_SIG_ATOMIC_T)/g' \
+	      -e 's/@''SIG_ATOMIC_T_SUFFIX''@/$(SIG_ATOMIC_T_SUFFIX)/g' \
+	      -e 's/@''BITSIZEOF_SIZE_T''@/$(BITSIZEOF_SIZE_T)/g' \
+	      -e 's/@''SIZE_T_SUFFIX''@/$(SIZE_T_SUFFIX)/g' \
+	      -e 's/@''BITSIZEOF_WCHAR_T''@/$(BITSIZEOF_WCHAR_T)/g' \
+	      -e 's/@''HAVE_SIGNED_WCHAR_T''@/$(HAVE_SIGNED_WCHAR_T)/g' \
+	      -e 's/@''WCHAR_T_SUFFIX''@/$(WCHAR_T_SUFFIX)/g' \
+	      -e 's/@''BITSIZEOF_WINT_T''@/$(BITSIZEOF_WINT_T)/g' \
+	      -e 's/@''HAVE_SIGNED_WINT_T''@/$(HAVE_SIGNED_WINT_T)/g' \
+	      -e 's/@''WINT_T_SUFFIX''@/$(WINT_T_SUFFIX)/g' \
+	      < $(srcdir)/stdint.in.h; \
+	} > $@-t && \
+	mv $@-t $@
+else
+stdint.h: $(top_builddir)/config.status
+	rm -f $@
+endif
+MOSTLYCLEANFILES += stdint.h stdint.h-t
+
+EXTRA_DIST += stdint.in.h
+
+## end   gnulib module stdint
+
 ## begin gnulib module stddef
 
 BUILT_SOURCES += $(STDDEF_H)
@@ -337,6 +425,111 @@ EXTRA_DIST += stddef.in.h
 
 ## end   gnulib module stddef
 
+## begin gnulib module stdlib
+
+BUILT_SOURCES += stdlib.h
+
+# We need the following in order to create <stdlib.h> when the system
+# doesn't have one that works with the given compiler.
+stdlib.h: stdlib.in.h $(top_builddir)/config.status $(CXXDEFS_H) \
+  $(_NORETURN_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
+	$(AM_V_GEN)rm -f $@-t $@ && \
+	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
+	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
+	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
+	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
+	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
+	      -e 's|@''NEXT_STDLIB_H''@|$(NEXT_STDLIB_H)|g' \
+	      -e 's/@''GNULIB__EXIT''@/$(GNULIB__EXIT)/g' \
+	      -e 's/@''GNULIB_ATOLL''@/$(GNULIB_ATOLL)/g' \
+	      -e 's/@''GNULIB_CALLOC_POSIX''@/$(GNULIB_CALLOC_POSIX)/g' \
+	      -e 's/@''GNULIB_CANONICALIZE_FILE_NAME''@/$(GNULIB_CANONICALIZE_FILE_NAME)/g' \
+	      -e 's/@''GNULIB_GETLOADAVG''@/$(GNULIB_GETLOADAVG)/g' \
+	      -e 's/@''GNULIB_GETSUBOPT''@/$(GNULIB_GETSUBOPT)/g' \
+	      -e 's/@''GNULIB_GRANTPT''@/$(GNULIB_GRANTPT)/g' \
+	      -e 's/@''GNULIB_MALLOC_POSIX''@/$(GNULIB_MALLOC_POSIX)/g' \
+	      -e 's/@''GNULIB_MBTOWC''@/$(GNULIB_MBTOWC)/g' \
+	      -e 's/@''GNULIB_MKDTEMP''@/$(GNULIB_MKDTEMP)/g' \
+	      -e 's/@''GNULIB_MKOSTEMP''@/$(GNULIB_MKOSTEMP)/g' \
+	      -e 's/@''GNULIB_MKOSTEMPS''@/$(GNULIB_MKOSTEMPS)/g' \
+	      -e 's/@''GNULIB_MKSTEMP''@/$(GNULIB_MKSTEMP)/g' \
+	      -e 's/@''GNULIB_MKSTEMPS''@/$(GNULIB_MKSTEMPS)/g' \
+	      -e 's/@''GNULIB_POSIX_OPENPT''@/$(GNULIB_POSIX_OPENPT)/g' \
+	      -e 's/@''GNULIB_PTSNAME''@/$(GNULIB_PTSNAME)/g' \
+	      -e 's/@''GNULIB_PTSNAME_R''@/$(GNULIB_PTSNAME_R)/g' \
+	      -e 's/@''GNULIB_PUTENV''@/$(GNULIB_PUTENV)/g' \
+	      -e 's/@''GNULIB_QSORT_R''@/$(GNULIB_QSORT_R)/g' \
+	      -e 's/@''GNULIB_RANDOM''@/$(GNULIB_RANDOM)/g' \
+	      -e 's/@''GNULIB_RANDOM_R''@/$(GNULIB_RANDOM_R)/g' \
+	      -e 's/@''GNULIB_REALLOC_POSIX''@/$(GNULIB_REALLOC_POSIX)/g' \
+	      -e 's/@''GNULIB_REALPATH''@/$(GNULIB_REALPATH)/g' \
+	      -e 's/@''GNULIB_RPMATCH''@/$(GNULIB_RPMATCH)/g' \
+	      -e 's/@''GNULIB_SECURE_GETENV''@/$(GNULIB_SECURE_GETENV)/g' \
+	      -e 's/@''GNULIB_SETENV''@/$(GNULIB_SETENV)/g' \
+	      -e 's/@''GNULIB_STRTOD''@/$(GNULIB_STRTOD)/g' \
+	      -e 's/@''GNULIB_STRTOLL''@/$(GNULIB_STRTOLL)/g' \
+	      -e 's/@''GNULIB_STRTOULL''@/$(GNULIB_STRTOULL)/g' \
+	      -e 's/@''GNULIB_SYSTEM_POSIX''@/$(GNULIB_SYSTEM_POSIX)/g' \
+	      -e 's/@''GNULIB_UNLOCKPT''@/$(GNULIB_UNLOCKPT)/g' \
+	      -e 's/@''GNULIB_UNSETENV''@/$(GNULIB_UNSETENV)/g' \
+	      -e 's/@''GNULIB_WCTOMB''@/$(GNULIB_WCTOMB)/g' \
+	      < $(srcdir)/stdlib.in.h | \
+	  sed -e 's|@''HAVE__EXIT''@|$(HAVE__EXIT)|g' \
+	      -e 's|@''HAVE_ATOLL''@|$(HAVE_ATOLL)|g' \
+	      -e 's|@''HAVE_CANONICALIZE_FILE_NAME''@|$(HAVE_CANONICALIZE_FILE_NAME)|g' \
+	      -e 's|@''HAVE_DECL_GETLOADAVG''@|$(HAVE_DECL_GETLOADAVG)|g' \
+	      -e 's|@''HAVE_GETSUBOPT''@|$(HAVE_GETSUBOPT)|g' \
+	      -e 's|@''HAVE_GRANTPT''@|$(HAVE_GRANTPT)|g' \
+	      -e 's|@''HAVE_MKDTEMP''@|$(HAVE_MKDTEMP)|g' \
+	      -e 's|@''HAVE_MKOSTEMP''@|$(HAVE_MKOSTEMP)|g' \
+	      -e 's|@''HAVE_MKOSTEMPS''@|$(HAVE_MKOSTEMPS)|g' \
+	      -e 's|@''HAVE_MKSTEMP''@|$(HAVE_MKSTEMP)|g' \
+	      -e 's|@''HAVE_MKSTEMPS''@|$(HAVE_MKSTEMPS)|g' \
+	      -e 's|@''HAVE_POSIX_OPENPT''@|$(HAVE_POSIX_OPENPT)|g' \
+	      -e 's|@''HAVE_PTSNAME''@|$(HAVE_PTSNAME)|g' \
+	      -e 's|@''HAVE_PTSNAME_R''@|$(HAVE_PTSNAME_R)|g' \
+	      -e 's|@''HAVE_RANDOM''@|$(HAVE_RANDOM)|g' \
+	      -e 's|@''HAVE_RANDOM_H''@|$(HAVE_RANDOM_H)|g' \
+	      -e 's|@''HAVE_RANDOM_R''@|$(HAVE_RANDOM_R)|g' \
+	      -e 's|@''HAVE_REALPATH''@|$(HAVE_REALPATH)|g' \
+	      -e 's|@''HAVE_RPMATCH''@|$(HAVE_RPMATCH)|g' \
+	      -e 's|@''HAVE_SECURE_GETENV''@|$(HAVE_SECURE_GETENV)|g' \
+	      -e 's|@''HAVE_DECL_SETENV''@|$(HAVE_DECL_SETENV)|g' \
+	      -e 's|@''HAVE_STRTOD''@|$(HAVE_STRTOD)|g' \
+	      -e 's|@''HAVE_STRTOLL''@|$(HAVE_STRTOLL)|g' \
+	      -e 's|@''HAVE_STRTOULL''@|$(HAVE_STRTOULL)|g' \
+	      -e 's|@''HAVE_STRUCT_RANDOM_DATA''@|$(HAVE_STRUCT_RANDOM_DATA)|g' \
+	      -e 's|@''HAVE_SYS_LOADAVG_H''@|$(HAVE_SYS_LOADAVG_H)|g' \
+	      -e 's|@''HAVE_UNLOCKPT''@|$(HAVE_UNLOCKPT)|g' \
+	      -e 's|@''HAVE_DECL_UNSETENV''@|$(HAVE_DECL_UNSETENV)|g' \
+	      -e 's|@''REPLACE_CALLOC''@|$(REPLACE_CALLOC)|g' \
+	      -e 's|@''REPLACE_CANONICALIZE_FILE_NAME''@|$(REPLACE_CANONICALIZE_FILE_NAME)|g' \
+	      -e 's|@''REPLACE_MALLOC''@|$(REPLACE_MALLOC)|g' \
+	      -e 's|@''REPLACE_MBTOWC''@|$(REPLACE_MBTOWC)|g' \
+	      -e 's|@''REPLACE_MKSTEMP''@|$(REPLACE_MKSTEMP)|g' \
+	      -e 's|@''REPLACE_PTSNAME''@|$(REPLACE_PTSNAME)|g' \
+	      -e 's|@''REPLACE_PTSNAME_R''@|$(REPLACE_PTSNAME_R)|g' \
+	      -e 's|@''REPLACE_PUTENV''@|$(REPLACE_PUTENV)|g' \
+	      -e 's|@''REPLACE_QSORT_R''@|$(REPLACE_QSORT_R)|g' \
+	      -e 's|@''REPLACE_RANDOM_R''@|$(REPLACE_RANDOM_R)|g' \
+	      -e 's|@''REPLACE_REALLOC''@|$(REPLACE_REALLOC)|g' \
+	      -e 's|@''REPLACE_REALPATH''@|$(REPLACE_REALPATH)|g' \
+	      -e 's|@''REPLACE_SETENV''@|$(REPLACE_SETENV)|g' \
+	      -e 's|@''REPLACE_STRTOD''@|$(REPLACE_STRTOD)|g' \
+	      -e 's|@''REPLACE_UNSETENV''@|$(REPLACE_UNSETENV)|g' \
+	      -e 's|@''REPLACE_WCTOMB''@|$(REPLACE_WCTOMB)|g' \
+	      -e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \
+	      -e '/definition of _Noreturn/r $(_NORETURN_H)' \
+	      -e '/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)' \
+	      -e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)'; \
+	} > $@-t && \
+	mv $@-t $@
+MOSTLYCLEANFILES += stdlib.h stdlib.h-t
+
+EXTRA_DIST += stdlib.in.h
+
+## end   gnulib module stdlib
+
 ## begin gnulib module strerror
 
 
diff --git a/gl/getdelim.c b/gl/getdelim.c
new file mode 100644
index 0000000..88258e5
--- /dev/null
+++ b/gl/getdelim.c
@@ -0,0 +1,135 @@
+/* getdelim.c --- Implementation of replacement getdelim function.
+   Copyright (C) 1994, 1996-1998, 2001, 2003, 2005-2015 Free Software
+   Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 3, or (at
+   your option) any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
+
+/* Ported from glibc by Simon Josefsson. */
+
+/* Don't use __attribute__ __nonnull__ in this compilation unit.  Otherwise gcc
+   optimizes away the lineptr == NULL || n == NULL || fp == NULL tests below.  */
+#define _GL_ARG_NONNULL(params)
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include <limits.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#ifndef SSIZE_MAX
+# define SSIZE_MAX ((ssize_t) (SIZE_MAX / 2))
+#endif
+
+#if USE_UNLOCKED_IO
+# include "unlocked-io.h"
+# define getc_maybe_unlocked(fp)        getc(fp)
+#elif !HAVE_FLOCKFILE || !HAVE_FUNLOCKFILE || !HAVE_DECL_GETC_UNLOCKED
+# undef flockfile
+# undef funlockfile
+# define flockfile(x) ((void) 0)
+# define funlockfile(x) ((void) 0)
+# define getc_maybe_unlocked(fp)        getc(fp)
+#else
+# define getc_maybe_unlocked(fp)        getc_unlocked(fp)
+#endif
+
+/* Read up to (and including) a DELIMITER from FP into *LINEPTR (and
+   NUL-terminate it).  *LINEPTR is a pointer returned from malloc (or
+   NULL), pointing to *N characters of space.  It is realloc'ed as
+   necessary.  Returns the number of characters read (not including
+   the null terminator), or -1 on error or EOF.  */
+
+ssize_t
+getdelim (char **lineptr, size_t *n, int delimiter, FILE *fp)
+{
+  ssize_t result;
+  size_t cur_len = 0;
+
+  if (lineptr == NULL || n == NULL || fp == NULL)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  flockfile (fp);
+
+  if (*lineptr == NULL || *n == 0)
+    {
+      char *new_lineptr;
+      *n = 120;
+      new_lineptr = (char *) realloc (*lineptr, *n);
+      if (new_lineptr == NULL)
+        {
+          result = -1;
+          goto unlock_return;
+        }
+      *lineptr = new_lineptr;
+    }
+
+  for (;;)
+    {
+      int i;
+
+      i = getc_maybe_unlocked (fp);
+      if (i == EOF)
+        {
+          result = -1;
+          break;
+        }
+
+      /* Make enough space for len+1 (for final NUL) bytes.  */
+      if (cur_len + 1 >= *n)
+        {
+          size_t needed_max =
+            SSIZE_MAX < SIZE_MAX ? (size_t) SSIZE_MAX + 1 : SIZE_MAX;
+          size_t needed = 2 * *n + 1;   /* Be generous. */
+          char *new_lineptr;
+
+          if (needed_max < needed)
+            needed = needed_max;
+          if (cur_len + 1 >= needed)
+            {
+              result = -1;
+              errno = EOVERFLOW;
+              goto unlock_return;
+            }
+
+          new_lineptr = (char *) realloc (*lineptr, needed);
+          if (new_lineptr == NULL)
+            {
+              result = -1;
+              goto unlock_return;
+            }
+
+          *lineptr = new_lineptr;
+          *n = needed;
+        }
+
+      (*lineptr)[cur_len] = i;
+      cur_len++;
+
+      if (i == delimiter)
+        break;
+    }
+  (*lineptr)[cur_len] = '\0';
+  result = cur_len ? cur_len : result;
+
+ unlock_return:
+  funlockfile (fp); /* doesn't set errno */
+
+  return result;
+}
diff --git a/gl/getline.c b/gl/getline.c
new file mode 100644
index 0000000..811c773
--- /dev/null
+++ b/gl/getline.c
@@ -0,0 +1,27 @@
+/* getline.c --- Implementation of replacement getline function.
+   Copyright (C) 2005-2007, 2009-2015 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 3, or (at
+   your option) any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Simon Josefsson. */
+
+#include <config.h>
+
+#include <stdio.h>
+
+ssize_t
+getline (char **lineptr, size_t *n, FILE *stream)
+{
+  return getdelim (lineptr, n, '\n', stream);
+}
diff --git a/gl/m4/getdelim.m4 b/gl/m4/getdelim.m4
new file mode 100644
index 0000000..af9b1fa
--- /dev/null
+++ b/gl/m4/getdelim.m4
@@ -0,0 +1,88 @@
+# getdelim.m4 serial 10
+
+dnl Copyright (C) 2005-2007, 2009-2015 Free Software Foundation, Inc.
+dnl
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_PREREQ([2.59])
+
+AC_DEFUN([gl_FUNC_GETDELIM],
+[
+  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+
+  dnl Persuade glibc <stdio.h> to declare getdelim().
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+  AC_CHECK_DECLS_ONCE([getdelim])
+
+  AC_CHECK_FUNCS_ONCE([getdelim])
+  if test $ac_cv_func_getdelim = yes; then
+    HAVE_GETDELIM=1
+    dnl Found it in some library.  Verify that it works.
+    AC_CACHE_CHECK([for working getdelim function], [gl_cv_func_working_getdelim],
+    [echo fooNbarN | tr -d '\012' | tr N '\012' > conftest.data
+    AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#    include <stdio.h>
+#    include <stdlib.h>
+#    include <string.h>
+    int main ()
+    {
+      FILE *in = fopen ("./conftest.data", "r");
+      if (!in)
+        return 1;
+      {
+        /* Test result for a NULL buffer and a zero size.
+           Based on a test program from Karl Heuer.  */
+        char *line = NULL;
+        size_t siz = 0;
+        int len = getdelim (&line, &siz, '\n', in);
+        if (!(len == 4 && line && strcmp (line, "foo\n") == 0))
+          return 2;
+      }
+      {
+        /* Test result for a NULL buffer and a non-zero size.
+           This crashes on FreeBSD 8.0.  */
+        char *line = NULL;
+        size_t siz = (size_t)(~0) / 4;
+        if (getdelim (&line, &siz, '\n', in) == -1)
+          return 3;
+      }
+      return 0;
+    }
+    ]])], [gl_cv_func_working_getdelim=yes] dnl The library version works.
+    , [gl_cv_func_working_getdelim=no] dnl The library version does NOT work.
+    , dnl We're cross compiling. Assume it works on glibc2 systems.
+      [AC_EGREP_CPP([Lucky GNU user],
+         [
+#include <features.h>
+#ifdef __GNU_LIBRARY__
+ #if (__GLIBC__ >= 2) && !defined __UCLIBC__
+  Lucky GNU user
+ #endif
+#endif
+         ],
+         [gl_cv_func_working_getdelim="guessing yes"],
+         [gl_cv_func_working_getdelim="guessing no"])]
+    )])
+    case "$gl_cv_func_working_getdelim" in
+      *no)
+        REPLACE_GETDELIM=1
+        ;;
+    esac
+  else
+    HAVE_GETDELIM=0
+  fi
+
+  if test $ac_cv_have_decl_getdelim = no; then
+    HAVE_DECL_GETDELIM=0
+  fi
+])
+
+# Prerequisites of lib/getdelim.c.
+AC_DEFUN([gl_PREREQ_GETDELIM],
+[
+  AC_CHECK_FUNCS([flockfile funlockfile])
+  AC_CHECK_DECLS([getc_unlocked])
+])
diff --git a/gl/m4/getline.m4 b/gl/m4/getline.m4
new file mode 100644
index 0000000..a35f3a2
--- /dev/null
+++ b/gl/m4/getline.m4
@@ -0,0 +1,96 @@
+# getline.m4 serial 26
+
+dnl Copyright (C) 1998-2003, 2005-2007, 2009-2015 Free Software Foundation,
+dnl Inc.
+dnl
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_PREREQ([2.59])
+
+dnl See if there's a working, system-supplied version of the getline function.
+dnl We can't just do AC_REPLACE_FUNCS([getline]) because some systems
+dnl have a function by that name in -linet that doesn't have anything
+dnl to do with the function we need.
+AC_DEFUN([gl_FUNC_GETLINE],
+[
+  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+
+  dnl Persuade glibc <stdio.h> to declare getline().
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+  AC_CHECK_DECLS_ONCE([getline])
+
+  gl_getline_needs_run_time_check=no
+  AC_CHECK_FUNC([getline],
+                [dnl Found it in some library.  Verify that it works.
+                 gl_getline_needs_run_time_check=yes],
+                [am_cv_func_working_getline=no])
+  if test $gl_getline_needs_run_time_check = yes; then
+    AC_CACHE_CHECK([for working getline function], [am_cv_func_working_getline],
+    [echo fooNbarN | tr -d '\012' | tr N '\012' > conftest.data
+    AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#    include <stdio.h>
+#    include <stdlib.h>
+#    include <string.h>
+    int main ()
+    {
+      FILE *in = fopen ("./conftest.data", "r");
+      if (!in)
+        return 1;
+      {
+        /* Test result for a NULL buffer and a zero size.
+           Based on a test program from Karl Heuer.  */
+        char *line = NULL;
+        size_t siz = 0;
+        int len = getline (&line, &siz, in);
+        if (!(len == 4 && line && strcmp (line, "foo\n") == 0))
+          return 2;
+      }
+      {
+        /* Test result for a NULL buffer and a non-zero size.
+           This crashes on FreeBSD 8.0.  */
+        char *line = NULL;
+        size_t siz = (size_t)(~0) / 4;
+        if (getline (&line, &siz, in) == -1)
+          return 3;
+      }
+      return 0;
+    }
+    ]])], [am_cv_func_working_getline=yes] dnl The library version works.
+    , [am_cv_func_working_getline=no] dnl The library version does NOT work.
+    , dnl We're cross compiling. Assume it works on glibc2 systems.
+      [AC_EGREP_CPP([Lucky GNU user],
+         [
+#include <features.h>
+#ifdef __GNU_LIBRARY__
+ #if (__GLIBC__ >= 2) && !defined __UCLIBC__
+  Lucky GNU user
+ #endif
+#endif
+         ],
+         [am_cv_func_working_getline="guessing yes"],
+         [am_cv_func_working_getline="guessing no"])]
+    )])
+  fi
+
+  if test $ac_cv_have_decl_getline = no; then
+    HAVE_DECL_GETLINE=0
+  fi
+
+  case "$am_cv_func_working_getline" in
+    *no)
+      dnl Set REPLACE_GETLINE always: Even if we have not found the broken
+      dnl getline function among $LIBS, it may exist in libinet and the
+      dnl executable may be linked with -linet.
+      REPLACE_GETLINE=1
+      ;;
+  esac
+])
+
+# Prerequisites of lib/getline.c.
+AC_DEFUN([gl_PREREQ_GETLINE],
+[
+  :
+])
diff --git a/gl/m4/gnulib-cache.m4 b/gl/m4/gnulib-cache.m4
index 92865c6..f6fd035 100644
--- a/gl/m4/gnulib-cache.m4
+++ b/gl/m4/gnulib-cache.m4
@@ -27,7 +27,7 @@
 
 
 # Specification in the form of a command-line invocation:
-#   gnulib-tool --import --dir=. --local-dir=gl/override --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --tests-base=gltests --aux-dir=build-aux --with-tests --avoid=binary-io-tests --avoid=fcntl-h-tests --avoid=stdlib-tests --avoid=string-tests --avoid=sys_stat-tests --avoid=time-tests --avoid=unistd-tests --avoid=update-copyright-tests --avoid=wchar-tests --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files autobuild csharpcomp-script csharpexec-script error fdl-1.3 gendocs getopt-gnu gnupload gpl-3.0 lgpl-2.1 maintainer-makefile manywarnings pmccabe2html progname update-copyright useless-if-before-free valgrind-tests vc-list-files version-etc warnings
+#   gnulib-tool --import --dir=. --local-dir=gl/override --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --tests-base=gltests --aux-dir=build-aux --with-tests --avoid=fcntl-h-tests --avoid=stdlib-tests --avoid=string-tests --avoid=sys_stat-tests --avoid=time-tests --avoid=unistd-tests --avoid=update-copyright-tests --avoid=wchar-tests --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files autobuild csharpcomp-script csharpexec-script error fdl-1.3 gendocs getline getopt-gnu gnupload maintainer-makefile manywarnings pmccabe2html progname update-copyright useless-if-before-free valgrind-tests vc-list-files version-etc warnings
 
 # Specification in the form of a few gnulib-tool.m4 macro invocations:
 gl_LOCAL_DIR([gl/override])
@@ -38,6 +38,7 @@ gl_MODULES([
   error
   fdl-1.3
   gendocs
+  getline
   getopt-gnu
   gnupload
   gpl-3.0
diff --git a/gl/m4/gnulib-comp.m4 b/gl/m4/gnulib-comp.m4
index 1bf4161..1150aba 100644
--- a/gl/m4/gnulib-comp.m4
+++ b/gl/m4/gnulib-comp.m4
@@ -71,6 +71,10 @@ AC_DEFUN([gl_EARLY],
   # Code from module gendocs:
   # Code from module getcwd-lgpl:
   # Code from module getcwd-lgpl-tests:
+  # Code from module getdelim:
+  # Code from module getdelim-tests:
+  # Code from module getline:
+  # Code from module getline-tests:
   # Code from module getopt-gnu:
   # Code from module getopt-posix:
   # Code from module getopt-posix-tests:
@@ -107,6 +111,7 @@ AC_DEFUN([gl_EARLY],
   # Code from module pmccabe2html:
   # Code from module progname:
   # Code from module putenv:
+  # Code from module realloc-posix:
   # Code from module same-inode:
   # Code from module setenv:
   # Code from module setenv-tests:
@@ -184,6 +189,19 @@ fi
 m4_ifdef([AM_XGETTEXT_OPTION],
   [AM_][XGETTEXT_OPTION([--flag=error:3:c-format])
    AM_][XGETTEXT_OPTION([--flag=error_at_line:5:c-format])])
+AC_REQUIRE([gl_EXTERN_INLINE])
+  gl_FUNC_GETDELIM
+  if test $HAVE_GETDELIM = 0 || test $REPLACE_GETDELIM = 1; then
+    AC_LIBOBJ([getdelim])
+    gl_PREREQ_GETDELIM
+  fi
+  gl_STDIO_MODULE_INDICATOR([getdelim])
+  gl_FUNC_GETLINE
+  if test $REPLACE_GETLINE = 1; then
+    AC_LIBOBJ([getline])
+    gl_PREREQ_GETLINE
+  fi
+  gl_STDIO_MODULE_INDICATOR([getline])
 gl_FUNC_GETOPT_GNU
 if test $REPLACE_GETOPT = 1; then
   AC_LIBOBJ([getopt])
@@ -219,12 +237,20 @@ gl_MSVC_NOTHROW
 if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
   AC_LIBOBJ([msvc-nothrow])
 fi
+gl_MULTIARCH
 AC_PATH_PROG([PMCCABE], [pmccabe], [false])
 AC_CHECK_DECLS([program_invocation_name], [], [], [#include <errno.h>])
 AC_CHECK_DECLS([program_invocation_short_name], [], [], [#include <errno.h>])
+gl_FUNC_REALLOC_POSIX
+if test $REPLACE_REALLOC = 1; then
+  AC_LIBOBJ([realloc])
+fi
+gl_STDLIB_MODULE_INDICATOR([realloc-posix])
 gt_TYPE_SSIZE_T
 gl_STDARG_H
 gl_STDDEF_H
+gl_STDINT_H
+gl_STDLIB_H
 gl_FUNC_STRERROR
 if test $REPLACE_STRERROR = 1; then
   AC_LIBOBJ([strerror])
@@ -335,7 +361,6 @@ if test $REPLACE_MALLOC = 1; then
 fi
 gl_STDLIB_MODULE_INDICATOR([malloc-posix])
 gl_MALLOCA
-gl_MULTIARCH
 gl_FUNC_OPEN
 if test $REPLACE_OPEN = 1; then
   AC_LIBOBJ([open])
@@ -360,11 +385,9 @@ if test $REPLACE_STAT = 1; then
 fi
 gl_SYS_STAT_MODULE_INDICATOR([stat])
 AM_STDBOOL_H
-gl_STDINT_H
 gt_TYPE_WCHAR_T
 gt_TYPE_WINT_T
 gl_STDIO_H
-gl_STDLIB_H
 gl_FUNC_SYMLINK
 if test $HAVE_SYMLINK = 0 || test $REPLACE_SYMLINK = 1; then
   AC_LIBOBJ([symlink])
@@ -495,6 +518,8 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/errno.in.h
   lib/error.c
   lib/error.h
+  lib/getdelim.c
+  lib/getline.c
   lib/getopt.c
   lib/getopt.in.h
   lib/getopt1.c
@@ -507,8 +532,11 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/msvc-nothrow.h
   lib/progname.c
   lib/progname.h
+  lib/realloc.c
   lib/stdarg.in.h
   lib/stddef.in.h
+  lib/stdint.in.h
+  lib/stdlib.in.h
   lib/strerror-override.c
   lib/strerror-override.h
   lib/strerror.c
@@ -535,6 +563,8 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/fdopen.m4
   m4/fstat.m4
   m4/getcwd.m4
+  m4/getdelim.m4
+  m4/getline.m4
   m4/getopt.m4
   m4/gnulib-common.m4
   m4/include_next.m4
@@ -554,6 +584,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/open.m4
   m4/pathmax.m4
   m4/putenv.m4
+  m4/realloc.m4
   m4/setenv.m4
   m4/ssize_t.m4
   m4/stat.m4
@@ -593,6 +624,8 @@ AC_DEFUN([gl_FILE_LIST], [
   tests/test-fwrite.c
   tests/test-getcwd-lgpl.c
   tests/test-getopt.c
+  tests/test-getdelim.c
+  tests/test-getline.c
   tests/test-getopt.h
   tests/test-getopt_long.h
   tests/test-ignore-value.c
@@ -646,9 +679,7 @@ AC_DEFUN([gl_FILE_LIST], [
   tests=lib/setenv.c
   tests=lib/stat.c
   tests=lib/stdbool.in.h
-  tests=lib/stdint.in.h
   tests=lib/stdio.in.h
-  tests=lib/stdlib.in.h
   tests=lib/symlink.c
   tests=lib/sys_stat.in.h
   tests=lib/time.in.h
diff --git a/gl/m4/realloc.m4 b/gl/m4/realloc.m4
new file mode 100644
index 0000000..0e1d338
--- /dev/null
+++ b/gl/m4/realloc.m4
@@ -0,0 +1,76 @@
+# realloc.m4 serial 13
+dnl Copyright (C) 2007, 2009-2015 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+m4_version_prereq([2.70], [] ,[
+
+# This is taken from the following Autoconf patch:
+# http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=7fbb553727ed7e0e689a17594b58559ecf3ea6e9
+AC_DEFUN([_AC_FUNC_REALLOC_IF],
+[
+  AC_REQUIRE([AC_HEADER_STDC])dnl
+  AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles
+  AC_CHECK_HEADERS([stdlib.h])
+  AC_CACHE_CHECK([for GNU libc compatible realloc],
+    [ac_cv_func_realloc_0_nonnull],
+    [AC_RUN_IFELSE(
+       [AC_LANG_PROGRAM(
+          [[#if defined STDC_HEADERS || defined HAVE_STDLIB_H
+            # include <stdlib.h>
+            #else
+            char *realloc ();
+            #endif
+          ]],
+          [[return ! realloc (0, 0);]])
+       ],
+       [ac_cv_func_realloc_0_nonnull=yes],
+       [ac_cv_func_realloc_0_nonnull=no],
+       [case "$host_os" in
+          # Guess yes on platforms where we know the result.
+          *-gnu* | freebsd* | netbsd* | openbsd* \
+          | hpux* | solaris* | cygwin* | mingw*)
+            ac_cv_func_realloc_0_nonnull=yes ;;
+          # If we don't know, assume the worst.
+          *) ac_cv_func_realloc_0_nonnull=no ;;
+        esac
+       ])
+    ])
+  AS_IF([test $ac_cv_func_realloc_0_nonnull = yes], [$1], [$2])
+])# AC_FUNC_REALLOC
+
+])
+
+# gl_FUNC_REALLOC_GNU
+# -------------------
+# Test whether 'realloc (0, 0)' is handled like in GNU libc, and replace
+# realloc if it is not.
+AC_DEFUN([gl_FUNC_REALLOC_GNU],
+[
+  AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+  dnl _AC_FUNC_REALLOC_IF is defined in Autoconf.
+  _AC_FUNC_REALLOC_IF(
+    [AC_DEFINE([HAVE_REALLOC_GNU], [1],
+               [Define to 1 if your system has a GNU libc compatible 'realloc'
+                function, and to 0 otherwise.])],
+    [AC_DEFINE([HAVE_REALLOC_GNU], [0])
+     REPLACE_REALLOC=1
+    ])
+])# gl_FUNC_REALLOC_GNU
+
+# gl_FUNC_REALLOC_POSIX
+# ---------------------
+# Test whether 'realloc' is POSIX compliant (sets errno to ENOMEM when it
+# fails), and replace realloc if it is not.
+AC_DEFUN([gl_FUNC_REALLOC_POSIX],
+[
+  AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+  AC_REQUIRE([gl_CHECK_MALLOC_POSIX])
+  if test $gl_cv_func_malloc_posix = yes; then
+    AC_DEFINE([HAVE_REALLOC_POSIX], [1],
+      [Define if the 'realloc' function is POSIX compliant.])
+  else
+    REPLACE_REALLOC=1
+  fi
+])
diff --git a/gl/realloc.m4 b/gl/realloc.m4
new file mode 100644
index 0000000..068b081
--- /dev/null
+++ b/gl/realloc.m4
@@ -0,0 +1,79 @@
+/* realloc() function that is glibc compatible.
+
+   Copyright (C) 1997, 2003-2004, 2006-2007, 2009-2015 Free Software
+   Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* written by Jim Meyering and Bruno Haible */
+
+#define _GL_USE_STDLIB_ALLOC 1
+#include <config.h>
+
+/* Only the AC_FUNC_REALLOC macro defines 'realloc' already in config.h.  */
+#ifdef realloc
+# define NEED_REALLOC_GNU 1
+/* Whereas the gnulib module 'realloc-gnu' defines HAVE_REALLOC_GNU.  */
+#elif GNULIB_REALLOC_GNU && !HAVE_REALLOC_GNU
+# define NEED_REALLOC_GNU 1
+#endif
+
+/* Infer the properties of the system's malloc function.
+   The gnulib module 'malloc-gnu' defines HAVE_MALLOC_GNU.  */
+#if GNULIB_MALLOC_GNU && HAVE_MALLOC_GNU
+# define SYSTEM_MALLOC_GLIBC_COMPATIBLE 1
+#endif
+
+#include <stdlib.h>
+
+#include <errno.h>
+
+/* Change the size of an allocated block of memory P to N bytes,
+   with error checking.  If N is zero, change it to 1.  If P is NULL,
+   use malloc.  */
+
+void *
+rpl_realloc (void *p, size_t n)
+{
+  void *result;
+
+#if NEED_REALLOC_GNU
+  if (n == 0)
+    {
+      n = 1;
+
+      /* In theory realloc might fail, so don't rely on it to free.  */
+      free (p);
+      p = NULL;
+    }
+#endif
+
+  if (p == NULL)
+    {
+#if GNULIB_REALLOC_GNU && !NEED_REALLOC_GNU && !SYSTEM_MALLOC_GLIBC_COMPATIBLE
+      if (n == 0)
+        n = 1;
+#endif
+      result = malloc (n);
+    }
+  else
+    result = realloc (p, n);
+
+#if !HAVE_REALLOC_POSIX
+  if (result == NULL)
+    errno = ENOMEM;
+#endif
+
+  return result;
+}
diff --git a/gltests/Makefile.am b/gltests/Makefile.am
index 7c7c59f..6c72c14 100644
--- a/gltests/Makefile.am
+++ b/gltests/Makefile.am
@@ -282,6 +282,24 @@ EXTRA_DIST += test-getcwd-lgpl.c signature.h macros.h
 
 ## end   gnulib module getcwd-lgpl-tests
 
+## begin gnulib module getdelim-tests
+
+TESTS += test-getdelim
+check_PROGRAMS += test-getdelim
+MOSTLYCLEANFILES += test-getdelim.txt
+EXTRA_DIST += test-getdelim.c signature.h macros.h
+
+## end   gnulib module getdelim-tests
+
+## begin gnulib module getline-tests
+
+TESTS += test-getline
+check_PROGRAMS += test-getline
+MOSTLYCLEANFILES += test-getline.txt
+EXTRA_DIST += test-getline.c signature.h macros.h
+
+## end   gnulib module getline-tests
+
 ## begin gnulib module getopt-posix-tests
 
 TESTS += test-getopt
@@ -610,56 +628,6 @@ EXTRA_DIST += test-stddef.c
 
 ## end   gnulib module stddef-tests
 
-## begin gnulib module stdint
-
-BUILT_SOURCES += $(STDINT_H)
-
-# We need the following in order to create <stdint.h> when the system
-# doesn't have one that works with the given compiler.
-if GL_GENERATE_STDINT_H
-stdint.h: stdint.in.h $(top_builddir)/config.status
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-	      -e 's/@''HAVE_STDINT_H''@/$(HAVE_STDINT_H)/g' \
-	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-	      -e 's|@''NEXT_STDINT_H''@|$(NEXT_STDINT_H)|g' \
-	      -e 's/@''HAVE_SYS_TYPES_H''@/$(HAVE_SYS_TYPES_H)/g' \
-	      -e 's/@''HAVE_INTTYPES_H''@/$(HAVE_INTTYPES_H)/g' \
-	      -e 's/@''HAVE_SYS_INTTYPES_H''@/$(HAVE_SYS_INTTYPES_H)/g' \
-	      -e 's/@''HAVE_SYS_BITYPES_H''@/$(HAVE_SYS_BITYPES_H)/g' \
-	      -e 's/@''HAVE_WCHAR_H''@/$(HAVE_WCHAR_H)/g' \
-	      -e 's/@''HAVE_LONG_LONG_INT''@/$(HAVE_LONG_LONG_INT)/g' \
-	      -e 's/@''HAVE_UNSIGNED_LONG_LONG_INT''@/$(HAVE_UNSIGNED_LONG_LONG_INT)/g' \
-	      -e 's/@''APPLE_UNIVERSAL_BUILD''@/$(APPLE_UNIVERSAL_BUILD)/g' \
-	      -e 's/@''BITSIZEOF_PTRDIFF_T''@/$(BITSIZEOF_PTRDIFF_T)/g' \
-	      -e 's/@''PTRDIFF_T_SUFFIX''@/$(PTRDIFF_T_SUFFIX)/g' \
-	      -e 's/@''BITSIZEOF_SIG_ATOMIC_T''@/$(BITSIZEOF_SIG_ATOMIC_T)/g' \
-	      -e 's/@''HAVE_SIGNED_SIG_ATOMIC_T''@/$(HAVE_SIGNED_SIG_ATOMIC_T)/g' \
-	      -e 's/@''SIG_ATOMIC_T_SUFFIX''@/$(SIG_ATOMIC_T_SUFFIX)/g' \
-	      -e 's/@''BITSIZEOF_SIZE_T''@/$(BITSIZEOF_SIZE_T)/g' \
-	      -e 's/@''SIZE_T_SUFFIX''@/$(SIZE_T_SUFFIX)/g' \
-	      -e 's/@''BITSIZEOF_WCHAR_T''@/$(BITSIZEOF_WCHAR_T)/g' \
-	      -e 's/@''HAVE_SIGNED_WCHAR_T''@/$(HAVE_SIGNED_WCHAR_T)/g' \
-	      -e 's/@''WCHAR_T_SUFFIX''@/$(WCHAR_T_SUFFIX)/g' \
-	      -e 's/@''BITSIZEOF_WINT_T''@/$(BITSIZEOF_WINT_T)/g' \
-	      -e 's/@''HAVE_SIGNED_WINT_T''@/$(HAVE_SIGNED_WINT_T)/g' \
-	      -e 's/@''WINT_T_SUFFIX''@/$(WINT_T_SUFFIX)/g' \
-	      < $(srcdir)/stdint.in.h; \
-	} > $@-t && \
-	mv $@-t $@
-else
-stdint.h: $(top_builddir)/config.status
-	rm -f $@
-endif
-MOSTLYCLEANFILES += stdint.h stdint.h-t
-
-EXTRA_DIST += stdint.in.h
-
-## end   gnulib module stdint
-
 ## begin gnulib module stdint-tests
 
 TESTS += test-stdint
@@ -805,103 +773,6 @@ EXTRA_DIST += test-stdio.c
 
 ## end   gnulib module stdio-tests
 
-## begin gnulib module stdlib
-
-BUILT_SOURCES += stdlib.h
-
-# We need the following in order to create <stdlib.h> when the system
-# doesn't have one that works with the given compiler.
-stdlib.h: stdlib.in.h $(top_builddir)/config.status $(CXXDEFS_H) \
-  $(_NORETURN_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
-	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-	      -e 's|@''NEXT_STDLIB_H''@|$(NEXT_STDLIB_H)|g' \
-	      -e 's/@''GNULIB__EXIT''@/$(GNULIB__EXIT)/g' \
-	      -e 's/@''GNULIB_ATOLL''@/$(GNULIB_ATOLL)/g' \
-	      -e 's/@''GNULIB_CALLOC_POSIX''@/$(GNULIB_CALLOC_POSIX)/g' \
-	      -e 's/@''GNULIB_CANONICALIZE_FILE_NAME''@/$(GNULIB_CANONICALIZE_FILE_NAME)/g' \
-	      -e 's/@''GNULIB_GETLOADAVG''@/$(GNULIB_GETLOADAVG)/g' \
-	      -e 's/@''GNULIB_GETSUBOPT''@/$(GNULIB_GETSUBOPT)/g' \
-	      -e 's/@''GNULIB_GRANTPT''@/$(GNULIB_GRANTPT)/g' \
-	      -e 's/@''GNULIB_MALLOC_POSIX''@/$(GNULIB_MALLOC_POSIX)/g' \
-	      -e 's/@''GNULIB_MBTOWC''@/$(GNULIB_MBTOWC)/g' \
-	      -e 's/@''GNULIB_MKDTEMP''@/$(GNULIB_MKDTEMP)/g' \
-	      -e 's/@''GNULIB_MKOSTEMP''@/$(GNULIB_MKOSTEMP)/g' \
-	      -e 's/@''GNULIB_MKOSTEMPS''@/$(GNULIB_MKOSTEMPS)/g' \
-	      -e 's/@''GNULIB_MKSTEMP''@/$(GNULIB_MKSTEMP)/g' \
-	      -e 's/@''GNULIB_MKSTEMPS''@/$(GNULIB_MKSTEMPS)/g' \
-	      -e 's/@''GNULIB_POSIX_OPENPT''@/$(GNULIB_POSIX_OPENPT)/g' \
-	      -e 's/@''GNULIB_PTSNAME''@/$(GNULIB_PTSNAME)/g' \
-	      -e 's/@''GNULIB_PTSNAME_R''@/$(GNULIB_PTSNAME_R)/g' \
-	      -e 's/@''GNULIB_PUTENV''@/$(GNULIB_PUTENV)/g' \
-	      -e 's/@''GNULIB_RANDOM_R''@/$(GNULIB_RANDOM_R)/g' \
-	      -e 's/@''GNULIB_REALLOC_POSIX''@/$(GNULIB_REALLOC_POSIX)/g' \
-	      -e 's/@''GNULIB_REALPATH''@/$(GNULIB_REALPATH)/g' \
-	      -e 's/@''GNULIB_RPMATCH''@/$(GNULIB_RPMATCH)/g' \
-	      -e 's/@''GNULIB_SETENV''@/$(GNULIB_SETENV)/g' \
-	      -e 's/@''GNULIB_STRTOD''@/$(GNULIB_STRTOD)/g' \
-	      -e 's/@''GNULIB_STRTOLL''@/$(GNULIB_STRTOLL)/g' \
-	      -e 's/@''GNULIB_STRTOULL''@/$(GNULIB_STRTOULL)/g' \
-	      -e 's/@''GNULIB_SYSTEM_POSIX''@/$(GNULIB_SYSTEM_POSIX)/g' \
-	      -e 's/@''GNULIB_UNLOCKPT''@/$(GNULIB_UNLOCKPT)/g' \
-	      -e 's/@''GNULIB_UNSETENV''@/$(GNULIB_UNSETENV)/g' \
-	      -e 's/@''GNULIB_WCTOMB''@/$(GNULIB_WCTOMB)/g' \
-	      < $(srcdir)/stdlib.in.h | \
-	  sed -e 's|@''HAVE__EXIT''@|$(HAVE__EXIT)|g' \
-	      -e 's|@''HAVE_ATOLL''@|$(HAVE_ATOLL)|g' \
-	      -e 's|@''HAVE_CANONICALIZE_FILE_NAME''@|$(HAVE_CANONICALIZE_FILE_NAME)|g' \
-	      -e 's|@''HAVE_DECL_GETLOADAVG''@|$(HAVE_DECL_GETLOADAVG)|g' \
-	      -e 's|@''HAVE_GETSUBOPT''@|$(HAVE_GETSUBOPT)|g' \
-	      -e 's|@''HAVE_GRANTPT''@|$(HAVE_GRANTPT)|g' \
-	      -e 's|@''HAVE_MKDTEMP''@|$(HAVE_MKDTEMP)|g' \
-	      -e 's|@''HAVE_MKOSTEMP''@|$(HAVE_MKOSTEMP)|g' \
-	      -e 's|@''HAVE_MKOSTEMPS''@|$(HAVE_MKOSTEMPS)|g' \
-	      -e 's|@''HAVE_MKSTEMP''@|$(HAVE_MKSTEMP)|g' \
-	      -e 's|@''HAVE_MKSTEMPS''@|$(HAVE_MKSTEMPS)|g' \
-	      -e 's|@''HAVE_POSIX_OPENPT''@|$(HAVE_POSIX_OPENPT)|g' \
-	      -e 's|@''HAVE_PTSNAME''@|$(HAVE_PTSNAME)|g' \
-	      -e 's|@''HAVE_PTSNAME_R''@|$(HAVE_PTSNAME_R)|g' \
-	      -e 's|@''HAVE_RANDOM_H''@|$(HAVE_RANDOM_H)|g' \
-	      -e 's|@''HAVE_RANDOM_R''@|$(HAVE_RANDOM_R)|g' \
-	      -e 's|@''HAVE_REALPATH''@|$(HAVE_REALPATH)|g' \
-	      -e 's|@''HAVE_RPMATCH''@|$(HAVE_RPMATCH)|g' \
-	      -e 's|@''HAVE_DECL_SETENV''@|$(HAVE_DECL_SETENV)|g' \
-	      -e 's|@''HAVE_STRTOD''@|$(HAVE_STRTOD)|g' \
-	      -e 's|@''HAVE_STRTOLL''@|$(HAVE_STRTOLL)|g' \
-	      -e 's|@''HAVE_STRTOULL''@|$(HAVE_STRTOULL)|g' \
-	      -e 's|@''HAVE_STRUCT_RANDOM_DATA''@|$(HAVE_STRUCT_RANDOM_DATA)|g' \
-	      -e 's|@''HAVE_SYS_LOADAVG_H''@|$(HAVE_SYS_LOADAVG_H)|g' \
-	      -e 's|@''HAVE_UNLOCKPT''@|$(HAVE_UNLOCKPT)|g' \
-	      -e 's|@''HAVE_DECL_UNSETENV''@|$(HAVE_DECL_UNSETENV)|g' \
-	      -e 's|@''REPLACE_CALLOC''@|$(REPLACE_CALLOC)|g' \
-	      -e 's|@''REPLACE_CANONICALIZE_FILE_NAME''@|$(REPLACE_CANONICALIZE_FILE_NAME)|g' \
-	      -e 's|@''REPLACE_MALLOC''@|$(REPLACE_MALLOC)|g' \
-	      -e 's|@''REPLACE_MBTOWC''@|$(REPLACE_MBTOWC)|g' \
-	      -e 's|@''REPLACE_MKSTEMP''@|$(REPLACE_MKSTEMP)|g' \
-	      -e 's|@''REPLACE_PTSNAME_R''@|$(REPLACE_PTSNAME_R)|g' \
-	      -e 's|@''REPLACE_PUTENV''@|$(REPLACE_PUTENV)|g' \
-	      -e 's|@''REPLACE_REALLOC''@|$(REPLACE_REALLOC)|g' \
-	      -e 's|@''REPLACE_REALPATH''@|$(REPLACE_REALPATH)|g' \
-	      -e 's|@''REPLACE_SETENV''@|$(REPLACE_SETENV)|g' \
-	      -e 's|@''REPLACE_STRTOD''@|$(REPLACE_STRTOD)|g' \
-	      -e 's|@''REPLACE_UNSETENV''@|$(REPLACE_UNSETENV)|g' \
-	      -e 's|@''REPLACE_WCTOMB''@|$(REPLACE_WCTOMB)|g' \
-	      -e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \
-	      -e '/definition of _Noreturn/r $(_NORETURN_H)' \
-	      -e '/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)' \
-	      -e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)'; \
-	} > $@-t && \
-	mv $@-t $@
-MOSTLYCLEANFILES += stdlib.h stdlib.h-t
-
-EXTRA_DIST += stdlib.in.h
-
-## end   gnulib module stdlib
-
 ## begin gnulib module strerror-tests
 
 TESTS += test-strerror
diff --git a/gltests/test-getdelim.c b/gltests/test-getdelim.c
new file mode 100644
index 0000000..bbcc3cd
--- /dev/null
+++ b/gltests/test-getdelim.c
@@ -0,0 +1,94 @@
+/* Test of getdelim() function.
+   Copyright (C) 2007-2015 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2007.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (getdelim, ssize_t, (char **, size_t *, int, FILE *));
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+
+int
+main (void)
+{
+  FILE *f;
+  char *line;
+  size_t len;
+  ssize_t result;
+
+  /* Create test file.  */
+  f = fopen ("test-getdelim.txt", "wb");
+  if (!f || fwrite ("anAnbcnd\0f", 1, 10, f) != 10 || fclose (f) != 0)
+    {
+      fputs ("Failed to create sample file.\n", stderr);
+      remove ("test-getdelim.txt");
+      return 1;
+    }
+  f = fopen ("test-getdelim.txt", "rb");
+  if (!f)
+    {
+      fputs ("Failed to reopen sample file.\n", stderr);
+      remove ("test-getdelim.txt");
+      return 1;
+    }
+
+  /* Test initial allocation, which must include trailing NUL.  */
+  line = NULL;
+  len = 0;
+  result = getdelim (&line, &len, 'n', f);
+  ASSERT (result == 2);
+  ASSERT (strcmp (line, "an") == 0);
+  ASSERT (2 < len);
+  free (line);
+
+  /* Test initial allocation again, with line = NULL and len != 0.  */
+  line = NULL;
+  len = (size_t)(~0) / 4;
+  result = getdelim (&line, &len, 'n', f);
+  ASSERT (result == 2);
+  ASSERT (strcmp (line, "An") == 0);
+  ASSERT (2 < len);
+  free (line);
+
+  /* Test growth of buffer.  */
+  line = malloc (1);
+  len = 1;
+  result = getdelim (&line, &len, 'n', f);
+  ASSERT (result == 3);
+  ASSERT (strcmp (line, "bcn") == 0);
+  ASSERT (3 < len);
+
+  /* Test embedded NULs and EOF behavior.  */
+  result = getdelim (&line, &len, 'n', f);
+  ASSERT (result == 3);
+  ASSERT (memcmp (line, "d\0f", 4) == 0);
+  ASSERT (3 < len);
+
+  result = getdelim (&line, &len, 'n', f);
+  ASSERT (result == -1);
+
+  free (line);
+  fclose (f);
+  remove ("test-getdelim.txt");
+  return 0;
+}
diff --git a/gltests/test-getline.c b/gltests/test-getline.c
new file mode 100644
index 0000000..238742c
--- /dev/null
+++ b/gltests/test-getline.c
@@ -0,0 +1,94 @@
+/* Test of getline() function.
+   Copyright (C) 2007-2015 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2007.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (getline, ssize_t, (char **, size_t *, FILE *));
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+
+int
+main (void)
+{
+  FILE *f;
+  char *line;
+  size_t len;
+  ssize_t result;
+
+  /* Create test file.  */
+  f = fopen ("test-getline.txt", "wb");
+  if (!f || fwrite ("a\nA\nbc\nd\0f", 1, 10, f) != 10 || fclose (f) != 0)
+    {
+      fputs ("Failed to create sample file.\n", stderr);
+      remove ("test-getline.txt");
+      return 1;
+    }
+  f = fopen ("test-getline.txt", "rb");
+  if (!f)
+    {
+      fputs ("Failed to reopen sample file.\n", stderr);
+      remove ("test-getline.txt");
+      return 1;
+    }
+
+  /* Test initial allocation, which must include trailing NUL.  */
+  line = NULL;
+  len = 0;
+  result = getline (&line, &len, f);
+  ASSERT (result == 2);
+  ASSERT (strcmp (line, "a\n") == 0);
+  ASSERT (2 < len);
+  free (line);
+
+  /* Test initial allocation again, with line = NULL and len != 0.  */
+  line = NULL;
+  len = (size_t)(~0) / 4;
+  result = getline (&line, &len, f);
+  ASSERT (result == 2);
+  ASSERT (strcmp (line, "A\n") == 0);
+  ASSERT (2 < len);
+  free (line);
+
+  /* Test growth of buffer, must not leak.  */
+  line = malloc (1);
+  len = 0;
+  result = getline (&line, &len, f);
+  ASSERT (result == 3);
+  ASSERT (strcmp (line, "bc\n") == 0);
+  ASSERT (3 < len);
+
+  /* Test embedded NULs and EOF behavior.  */
+  result = getline (&line, &len, f);
+  ASSERT (result == 3);
+  ASSERT (memcmp (line, "d\0f", 4) == 0);
+  ASSERT (3 < len);
+
+  result = getline (&line, &len, f);
+  ASSERT (result == -1);
+
+  free (line);
+  fclose (f);
+  remove ("test-getline.txt");
+  return 0;
+}
diff --git a/src/idn.c b/src/idn.c
index d2432a0..608cfba 100644
--- a/src/idn.c
+++ b/src/idn.c
@@ -129,7 +129,8 @@ int
 main (int argc, char *argv[])
 {
   struct gengetopt_args_info args_info;
-  char readbuf[BUFSIZ];
+  char *line = NULL;
+  size_t linelen = 0;
   char *p, *r;
   uint32_t *q;
   unsigned cmdn = 0;
@@ -193,24 +194,20 @@ main (int argc, char *argv[])
   do
     {
       if (cmdn < args_info.inputs_num)
-	{
-	  strncpy (readbuf, args_info.inputs[cmdn++], BUFSIZ - 1);
-	  readbuf[BUFSIZ - 1] = '\0';
-	}
-      else if (fgets (readbuf, BUFSIZ, stdin) == NULL)
-	{
+	line = strdup (args_info.inputs[cmdn++]);
+      else if (getline (&line, &linelen, stdin) == -1)
+      {
 	  if (feof (stdin))
 	    break;
 
 	  error (EXIT_FAILURE, errno, _("input error"));
 	}
-
-      if (readbuf[strlen (readbuf) - 1] == '\n')
-	readbuf[strlen (readbuf) - 1] = '\0';
+      if (line[strlen (line) - 1] == '\n')
+       line[strlen (line) - 1] = '\0';
 
       if (args_info.stringprep_given)
 	{
-	  p = stringprep_locale_to_utf8 (readbuf);
+	  p = stringprep_locale_to_utf8 (line);
 	  if (!p)
 	    error (EXIT_FAILURE, 0, _("could not convert from %s to UTF-8"),
 		   stringprep_locale_charset ());
@@ -292,15 +289,15 @@ main (int argc, char *argv[])
 	    }
 
 	  len2 = BUFSIZ - 1;
-	  rc = punycode_encode (len, q, NULL, &len2, readbuf);
+	  rc = punycode_encode (len, q, NULL, &len2, encbuf);
 	  free (q);
 	  if (rc != PUNYCODE_SUCCESS)
 	    error (EXIT_FAILURE, 0, _("punycode_encode: %s"),
 		   punycode_strerror (rc));
 
-	  readbuf[len2] = '\0';
+	  encbuf[len2] = '\0';
 
-	  p = stringprep_utf8_to_locale (readbuf);
+	  p = stringprep_utf8_to_locale (encbuf);
 	  if (!p)
 	    error (EXIT_FAILURE, 0, _("could not convert from UTF-8 to %s"),
 		   stringprep_locale_charset ());
@@ -319,7 +316,7 @@ main (int argc, char *argv[])
 	  if (!q)
 	    error (EXIT_FAILURE, ENOMEM, N_("malloc"));
 
-	  rc = punycode_decode (strlen (readbuf), readbuf, &len, q, NULL);
+	  rc = punycode_decode (strlen (line), readbuf, &len, q, NULL);
 	  if (rc != PUNYCODE_SUCCESS)
 	    {
 	      free (q);
@@ -355,7 +352,7 @@ main (int argc, char *argv[])
 
       if (args_info.idna_to_ascii_given)
 	{
-	  p = stringprep_locale_to_utf8 (readbuf);
+	  p = stringprep_locale_to_utf8 (line);
 	  if (!p)
 	    error (EXIT_FAILURE, 0, _("could not convert from %s to UTF-8"),
 		   stringprep_locale_charset ());
@@ -432,7 +429,7 @@ main (int argc, char *argv[])
 
       if (args_info.idna_to_unicode_given)
 	{
-	  p = stringprep_locale_to_utf8 (readbuf);
+	  p = stringprep_locale_to_utf8 (line);
 	  if (!p)
 	    error (EXIT_FAILURE, 0, _("could not convert from %s to UTF-8"),
 		   stringprep_locale_charset ());
@@ -513,7 +510,7 @@ main (int argc, char *argv[])
 
       if (args_info.nfkc_given)
 	{
-	  p = stringprep_locale_to_utf8 (readbuf);
+	  p = stringprep_locale_to_utf8 (line);
 	  if (!p)
 	    error (EXIT_FAILURE, 0, _("could not convert from %s to UTF-8"),
 		   stringprep_locale_charset ());
@@ -575,5 +572,7 @@ main (int argc, char *argv[])
   while (!feof (stdin) && !ferror (stdin) && (args_info.inputs_num == 0 ||
 					      cmdn < args_info.inputs_num));
 
+  free (line);
+
   return EXIT_SUCCESS;
 }