/* A GNU-like <stdio.h>.
- Copyright (C) 2004, 2007-2011 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2007-2013 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
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, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ along with this program; if not, see <http://www.gnu.org/licenses/>. */
#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
#include <stddef.h>
/* Get off_t and ssize_t. Needed on many systems, including glibc 2.8
- and eglibc 2.11.2. */
+ and eglibc 2.11.2.
+ May also define off_t to a 64-bit type on native Windows. */
#include <sys/types.h>
/* The __attribute__ feature is available in gcc versions 2.5 and later.
#define _GL_STDIO_STRINGIZE(token) #token
#define _GL_STDIO_MACROEXPAND_AND_STRINGIZE(token) _GL_STDIO_STRINGIZE(token)
+/* When also using extern inline, suppress the use of static inline in
+ standard headers of problematic Apple configurations, as Libc at
+ least through Libc-825.26 (2013-04-09) mishandles it; see, e.g.,
+ <http://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00023.html>.
+ Perhaps Apple will fix this some day. */
+#if (defined _GL_EXTERN_INLINE_IN_USE && defined __APPLE__ \
+ && defined __GNUC__ && defined __STDC__)
+# undef putc_unlocked
+#endif
#if @GNULIB_DPRINTF@
# if @REPLACE_DPRINTF@
"use gnulib module fclose for portable POSIX compliance");
#endif
+#if @GNULIB_FDOPEN@
+# if @REPLACE_FDOPEN@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef fdopen
+# define fdopen rpl_fdopen
+# endif
+_GL_FUNCDECL_RPL (fdopen, FILE *, (int fd, const char *mode)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (fdopen, FILE *, (int fd, const char *mode));
+# else
+_GL_CXXALIAS_SYS (fdopen, FILE *, (int fd, const char *mode));
+# endif
+_GL_CXXALIASWARN (fdopen);
+#elif defined GNULIB_POSIXCHECK
+# undef fdopen
+/* Assume fdopen is always declared. */
+_GL_WARN_ON_USE (fdopen, "fdopen on native Windows platforms is not POSIX compliant - "
+ "use gnulib module fdopen for portability");
+#endif
+
#if @GNULIB_FFLUSH@
/* Flush all pending data on STREAM according to POSIX rules. Both
output and seekable input streams are supported.
#elif defined GNULIB_POSIXCHECK
# undef fopen
/* Assume fopen is always declared. */
-_GL_WARN_ON_USE (fopen, "fopen on Win32 platforms is not POSIX compatible - "
+_GL_WARN_ON_USE (fopen, "fopen on native Windows platforms is not POSIX compliant - "
"use gnulib module fopen for portability");
#endif
# undef freopen
/* Assume freopen is always declared. */
_GL_WARN_ON_USE (freopen,
- "freopen on Win32 platforms is not POSIX compatible - "
+ "freopen on native Windows platforms is not POSIX compliant - "
"use gnulib module freopen for portability");
#endif
_GL_CXXALIAS_SYS (fwrite, size_t,
(const void *ptr, size_t s, size_t n, FILE *stream));
-/* Work around glibc bug 11959
+/* Work around bug 11959 when fortifying glibc 2.4 through 2.15
<http://sources.redhat.com/bugzilla/show_bug.cgi?id=11959>,
which sometimes causes an unwanted diagnostic for fwrite calls.
- This affects only function declaration attributes, so it's not
- needed for C++. */
-# if !defined __cplusplus && 0 < __USE_FORTIFY_LEVEL
-static inline size_t _GL_ARG_NONNULL ((1, 4))
-rpl_fwrite (const void *ptr, size_t s, size_t n, FILE *stream)
-{
- size_t r = fwrite (ptr, s, n, stream);
- (void) r;
- return r;
-}
+ This affects only function declaration attributes under certain
+ versions of gcc and clang, and is not needed for C++. */
+# if (0 < __USE_FORTIFY_LEVEL \
+ && __GLIBC__ == 2 && 4 <= __GLIBC_MINOR__ && __GLIBC_MINOR__ <= 15 \
+ && 3 < __GNUC__ + (4 <= __GNUC_MINOR__) \
+ && !defined __cplusplus)
# undef fwrite
+# undef fwrite_unlocked
+extern size_t __REDIRECT (rpl_fwrite,
+ (const void *__restrict, size_t, size_t,
+ FILE *__restrict),
+ fwrite);
+extern size_t __REDIRECT (rpl_fwrite_unlocked,
+ (const void *__restrict, size_t, size_t,
+ FILE *__restrict),
+ fwrite_unlocked);
# define fwrite rpl_fwrite
+# define fwrite_unlocked rpl_fwrite_unlocked
# endif
# endif
_GL_CXXALIASWARN (fwrite);
# endif
#endif
-#if @GNULIB_GETS@
-# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
-# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-# undef gets
-# define gets rpl_gets
-# endif
-_GL_FUNCDECL_RPL (gets, char *, (char *s) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (gets, char *, (char *s));
-# else
-_GL_CXXALIAS_SYS (gets, char *, (char *s));
-# undef gets
-# endif
-_GL_CXXALIASWARN (gets);
/* It is very rare that the developer ever has full control of stdin,
- so any use of gets warrants an unconditional warning. Assume it is
- always declared, since it is required by C89. */
+ so any use of gets warrants an unconditional warning; besides, C11
+ removed it. */
+#undef gets
+#if HAVE_RAW_DECL_GETS
_GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
#endif
_GL_CXXALIASWARN (obstack_vprintf);
#endif
+#if @GNULIB_PCLOSE@
+# if !@HAVE_PCLOSE@
+_GL_FUNCDECL_SYS (pclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
+# endif
+_GL_CXXALIAS_SYS (pclose, int, (FILE *stream));
+_GL_CXXALIASWARN (pclose);
+#elif defined GNULIB_POSIXCHECK
+# undef pclose
+# if HAVE_RAW_DECL_PCLOSE
+_GL_WARN_ON_USE (pclose, "pclose is unportable - "
+ "use gnulib module pclose for more portability");
+# endif
+#endif
+
#if @GNULIB_PERROR@
/* Print a message to standard error, describing the value of ERRNO,
(if STRING is not NULL and not empty) prefixed with STRING and ": ",
_GL_ARG_NONNULL ((1, 2)));
_GL_CXXALIAS_RPL (popen, FILE *, (const char *cmd, const char *mode));
# else
+# if !@HAVE_POPEN@
+_GL_FUNCDECL_SYS (popen, FILE *, (const char *cmd, const char *mode)
+ _GL_ARG_NONNULL ((1, 2)));
+# endif
_GL_CXXALIAS_SYS (popen, FILE *, (const char *cmd, const char *mode));
# endif
_GL_CXXALIASWARN (popen);
# endif
#endif
-/* Some people would argue that sprintf should be handled like gets
- (for example, OpenBSD issues a link warning for both functions),
- since both can cause security holes due to buffer overruns.
+/* Some people would argue that all sprintf uses should be warned about
+ (for example, OpenBSD issues a link warning for it),
+ since it can cause security holes due to buffer overruns.
However, we believe that sprintf can be used safely, and is more
efficient than snprintf in those safe cases; and as proof of our
belief, we use sprintf in several gnulib modules. So this header
"POSIX compliance");
#endif
-
#endif /* _@GUARD_PREFIX@_STDIO_H */
#endif /* _@GUARD_PREFIX@_STDIO_H */
#endif
projects / gnulib.git / blobdiff