glibc/include/string.h
H.J. Lu 78cf1d74d2 Hide internal __strsep function [BZ #18822]
Hide internal __strsep function to allow direct access within libc.so and
libc.a without using GOT nor PLT.

	[BZ #18822]
	* include/string.h (__strsep): Add libc_hidden_proto.
	* string/strsep.c (__strsep): Add libc_hidden_def.
2017-10-01 16:03:41 -07:00

202 lines
6.7 KiB
C

#ifndef _STRING_H
#ifndef _ISOMAC
/* Some of these are defined as macros in the real string.h, so we must
prototype them before including it. */
#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);
libc_hidden_proto (__strsep)
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 void __bzero (void *__s, size_t __n) __THROW __nonnull ((1));
extern int __ffs (int __i) __attribute__ ((const));
extern char *__strerror_r (int __errnum, char *__buf, size_t __buflen);
/* Get _STRING_ARCH_unaligned. */
#include <string_private.h>
#endif
#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)
#ifndef __NO_STRING_INLINES
# define __mempcpy(dest, src, n) __builtin_mempcpy (dest, src, n)
#endif
libc_hidden_proto (__stpcpy)
#ifndef __NO_STRING_INLINES
# define __stpcpy(dest, src) __builtin_stpcpy (dest, src)
#endif
libc_hidden_proto (__stpncpy)
libc_hidden_proto (__rawmemchr)
libc_hidden_proto (__strcasecmp)
libc_hidden_proto (__strcasecmp_l)
libc_hidden_proto (__strncasecmp_l)
extern __typeof (strncat) __strncat;
libc_hidden_proto (__strncat)
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 (__strnlen)
libc_hidden_proto (memmem)
extern __typeof (memmem) __memmem;
libc_hidden_proto (__memmem)
libc_hidden_proto (__ffs)
#if IS_IN (libc)
/* Avoid hidden reference to IFUNC symbol __explicit_bzero_chk. */
void __explicit_bzero_chk_internal (void *, size_t, size_t)
__THROW __nonnull ((1)) attribute_hidden;
# define explicit_bzero(buf, len) \
__explicit_bzero_chk_internal (buf, len, __bos0 (buf))
#elif !IS_IN (nonlib)
void __explicit_bzero_chk (void *, size_t, size_t) __THROW __nonnull ((1));
# define explicit_bzero(buf, len) __explicit_bzero_chk (buf, len, __bos0 (buf))
#endif
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 (rtld)
extern __typeof (__stpcpy) __stpcpy attribute_hidden;
extern __typeof (__strdup) __strdup attribute_hidden;
extern __typeof (__strerror_r) __strerror_r attribute_hidden;
extern __typeof (__strsep_g) __strsep_g attribute_hidden;
extern __typeof (memchr) memchr attribute_hidden;
extern __typeof (memcmp) memcmp attribute_hidden;
extern __typeof (memcpy) memcpy attribute_hidden;
extern __typeof (memmove) memmove attribute_hidden;
extern __typeof (memset) memset attribute_hidden;
extern __typeof (rawmemchr) rawmemchr attribute_hidden;
extern __typeof (stpcpy) stpcpy attribute_hidden;
extern __typeof (strchr) strchr attribute_hidden;
extern __typeof (strcmp) strcmp attribute_hidden;
extern __typeof (strlen) strlen attribute_hidden;
extern __typeof (strnlen) strnlen attribute_hidden;
extern __typeof (strsep) strsep attribute_hidden;
#endif
#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
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