glibc/include/string.h
Joseph Myers cf06a4e357 Fix pathconf basename namespace (bug 18444).
pathconf (sysdeps/unix/sysv/linux/pathconf.c) uses basename.  But
pathconf is in POSIX back to 1990 while basename is only reserved with
external linkage in those standards including XPG functions.  This
patch fixes this namespace issue in the usual way, renaming basename
to __basename and making it into a weak alias.

Tested for x86_64 and x86 (testsuite, and that disassembly of
installed shared libraries is unchanged by the patch).

	[BZ #18444]
	* string/basename.c (basename): Rename to __basename and define as
	weak alias of __basename.  Use libc_hidden_weak.
	* include/string.h (__basename): Declare.  Use libc_hidden_proto.
	* sysdeps/unix/sysv/linux/pathconf.c (distinguish_extX): Call
	__basename instead of basename.
	* conform/Makefile (test-xfail-POSIX2008/unistd.h/linknamespace):
	Remove variable.
	(test-xfail-XOPEN2K8/unistd.h/linknamespace): Likewise.
2015-05-22 17:09:36 +00:00

165 lines
5.2 KiB
C

#ifndef _STRING_H
#ifndef _ISOMAC
#include <sys/types.h>
extern void *__memccpy (void *__dest, const void *__src,
int __c, size_t __n);
extern size_t __strnlen (const char *__string, size_t __maxlen)
__attribute_pure__;
extern char *__strsep (char **__stringp, const char *__delim);
extern int __strverscmp (const char *__s1, const char *__s2)
__attribute_pure__;
extern int __strncasecmp (const char *__s1, const char *__s2,
size_t __n)
__attribute_pure__;
extern int __strcasecmp (const char *__s1, const char *__s2)
__attribute_pure__;
extern char *__strcasestr (const char *__haystack, const char *__needle)
__attribute_pure__;
extern char *__strdup (const char *__string)
__attribute_malloc__;
extern char *__strndup (const char *__string, size_t __n)
__attribute_malloc__;
extern void *__rawmemchr (const void *__s, int __c)
__attribute_pure__;
extern char *__strchrnul (const char *__s, int __c)
__attribute_pure__;
extern void *__memrchr (const void *__s, int __c, size_t __n)
__attribute_pure__;
extern void *__memchr (const void *__s, int __c, size_t __n)
__attribute_pure__;
extern int __ffs (int __i) __attribute__ ((const));
extern char *__strerror_r (int __errnum, char *__buf, size_t __buflen);
#endif
/* Now the real definitions. We do this here since some of the functions
above are defined as macros in the headers. */
#include <string/string.h>
#ifndef _ISOMAC
extern __typeof (strcoll_l) __strcoll_l;
extern __typeof (strxfrm_l) __strxfrm_l;
extern __typeof (strcasecmp_l) __strcasecmp_l;
extern __typeof (strncasecmp_l) __strncasecmp_l;
/* Alternative version which doesn't pollute glibc's namespace. */
#if IS_IN (libc)
# undef strndupa
# define strndupa(s, n) \
(__extension__ \
({ \
const char *__old = (s); \
size_t __len = __strnlen (__old, (n)); \
char *__new = (char *) __builtin_alloca (__len + 1); \
__new[__len] = '\0'; \
(char *) memcpy (__new, __old, __len); \
}))
#endif
libc_hidden_proto (__mempcpy)
libc_hidden_proto (__stpcpy)
libc_hidden_proto (__stpncpy)
libc_hidden_proto (__rawmemchr)
libc_hidden_proto (__strcasecmp)
libc_hidden_proto (__strcasecmp_l)
libc_hidden_proto (__strncasecmp_l)
libc_hidden_proto (__strdup)
libc_hidden_proto (__strndup)
libc_hidden_proto (__strerror_r)
libc_hidden_proto (__strverscmp)
libc_hidden_proto (basename)
extern char *__basename (const char *__filename) __THROW __nonnull ((1));
libc_hidden_proto (__basename)
libc_hidden_proto (strcoll)
libc_hidden_proto (__strcoll_l)
libc_hidden_proto (__strxfrm_l)
libc_hidden_proto (__strtok_r)
extern char *__strsep_g (char **__stringp, const char *__delim);
libc_hidden_proto (__strsep_g)
libc_hidden_proto (strnlen)
libc_hidden_proto (memmem)
extern __typeof (memmem) __memmem;
libc_hidden_proto (__memmem)
libc_hidden_proto (__ffs)
libc_hidden_builtin_proto (memchr)
libc_hidden_builtin_proto (memcpy)
libc_hidden_builtin_proto (mempcpy)
libc_hidden_builtin_proto (memcmp)
libc_hidden_builtin_proto (memmove)
libc_hidden_builtin_proto (memset)
libc_hidden_builtin_proto (strcat)
libc_hidden_builtin_proto (strchr)
libc_hidden_builtin_proto (strcmp)
libc_hidden_builtin_proto (strcpy)
libc_hidden_builtin_proto (strcspn)
libc_hidden_builtin_proto (strlen)
libc_hidden_builtin_proto (strncmp)
libc_hidden_builtin_proto (strncpy)
libc_hidden_builtin_proto (strpbrk)
libc_hidden_builtin_proto (stpcpy)
libc_hidden_builtin_proto (strrchr)
libc_hidden_builtin_proto (strspn)
libc_hidden_builtin_proto (strstr)
libc_hidden_builtin_proto (ffs)
#if (!IS_IN (libc) || !defined SHARED) \
&& !defined NO_MEMPCPY_STPCPY_REDIRECT
/* Redirect calls to __builtin_mempcpy and __builtin_stpcpy to call
__mempcpy and __stpcpy if not inlined. */
extern __typeof (mempcpy) mempcpy __asm__ ("__mempcpy");
extern __typeof (stpcpy) stpcpy __asm__ ("__stpcpy");
#endif
# ifndef _ISOMAC
# ifndef index
# define index(s, c) (strchr ((s), (c)))
# endif
# ifndef rindex
# define rindex(s, c) (strrchr ((s), (c)))
# endif
# endif
extern void *__memcpy_chk (void *__restrict __dest,
const void *__restrict __src, size_t __len,
size_t __destlen) __THROW;
extern void *__memmove_chk (void *__dest, const void *__src, size_t __len,
size_t __destlen) __THROW;
extern void *__mempcpy_chk (void *__restrict __dest,
const void *__restrict __src, size_t __len,
size_t __destlen) __THROW;
extern void *__memset_chk (void *__dest, int __ch, size_t __len,
size_t __destlen) __THROW;
extern char *__strcpy_chk (char *__restrict __dest,
const char *__restrict __src,
size_t __destlen) __THROW;
extern char *__stpcpy_chk (char *__restrict __dest,
const char *__restrict __src,
size_t __destlen) __THROW;
extern char *__strncpy_chk (char *__restrict __dest,
const char *__restrict __src,
size_t __len, size_t __destlen) __THROW;
extern char *__strcat_chk (char *__restrict __dest,
const char *__restrict __src,
size_t __destlen) __THROW;
extern char *__strncat_chk (char *__restrict __dest,
const char *__restrict __src,
size_t __len, size_t __destlen) __THROW;
#endif
#endif