include/string.h

   1 #ifndef _STRING_H
   2
   3 #ifndef _ISOMAC
   4 /* Some of these are defined as macros in the real string.h, so we must
   5    prototype them before including it.  */
   6 #include <sys/types.h>
   7
   8 extern void *__memccpy (void *__dest, const void *__src,
   9                         int __c, size_t __n);
  10
  11 extern size_t __strnlen (const char *__string, size_t __maxlen)
  12      __attribute_pure__;
  13
  14 extern char *__strsep (char **__stringp, const char *__delim);
  15
  16 extern int __strverscmp (const char *__s1, const char *__s2)
  17      __attribute_pure__;
  18
  19 extern int __strncasecmp (const char *__s1, const char *__s2,
  20                           size_t __n)
  21      __attribute_pure__;
  22
  23 extern int __strcasecmp (const char *__s1, const char *__s2)
  24      __attribute_pure__;
  25
  26 extern char *__strcasestr (const char *__haystack, const char *__needle)
  27      __attribute_pure__;
  28
  29 extern char *__strdup (const char *__string)
  30      __attribute_malloc__;
  31 extern char *__strndup (const char *__string, size_t __n)
  32      __attribute_malloc__;
  33
  34 extern void *__rawmemchr (const void *__s, int __c)
  35      __attribute_pure__;
  36
  37 extern char *__strchrnul (const char *__s, int __c)
  38      __attribute_pure__;
  39
  40 extern void *__memrchr (const void *__s, int __c, size_t __n)
  41      __attribute_pure__;
  42
  43 extern void *__memchr (const void *__s, int __c, size_t __n)
  44      __attribute_pure__;
  45
  46 extern void __bzero (void *__s, size_t __n) __THROW __nonnull ((1));
  47
  48 extern int __ffs (int __i) __attribute__ ((const));
  49
  50 extern char *__strerror_r (int __errnum, char *__buf, size_t __buflen);
  51
  52 /* Get _STRING_ARCH_unaligned.  */
  53 #include <string_private.h>
  54 #endif
  55
  56 #include <string/string.h>
  57
  58 #ifndef _ISOMAC
  59 extern __typeof (strcoll_l) __strcoll_l;
  60 extern __typeof (strxfrm_l) __strxfrm_l;
  61 extern __typeof (strcasecmp_l) __strcasecmp_l;
  62 extern __typeof (strncasecmp_l) __strncasecmp_l;
  63
  64 /* Alternative version which doesn't pollute glibc's namespace.  */
  65 #if IS_IN (libc)
  66 # undef strndupa
  67 # define strndupa(s, n)                                                       \
  68   (__extension__                                                              \
  69     ({                                                                        \
  70       const char *__old = (s);                                                \
  71       size_t __len = __strnlen (__old, (n));                                  \
  72       char *__new = (char *) __builtin_alloca (__len + 1);                    \
  73       __new[__len] = '\0';                                                    \
  74       (char *) memcpy (__new, __old, __len);                                  \
  75     }))
  76 #endif
  77
  78 libc_hidden_proto (__mempcpy)
  79 libc_hidden_proto (__stpcpy)
  80 libc_hidden_proto (__stpncpy)
  81 libc_hidden_proto (__rawmemchr)
  82 libc_hidden_proto (__strcasecmp)
  83 libc_hidden_proto (__strcasecmp_l)
  84 libc_hidden_proto (__strncasecmp_l)
  85 libc_hidden_proto (__strdup)
  86 libc_hidden_proto (__strndup)
  87 libc_hidden_proto (__strerror_r)
  88 libc_hidden_proto (__strverscmp)
  89 libc_hidden_proto (basename)
  90 extern char *__basename (const char *__filename) __THROW __nonnull ((1));
  91 libc_hidden_proto (__basename)
  92 libc_hidden_proto (strcoll)
  93 libc_hidden_proto (__strcoll_l)
  94 libc_hidden_proto (__strxfrm_l)
  95 libc_hidden_proto (__strtok_r)
  96 extern char *__strsep_g (char **__stringp, const char *__delim);
  97 libc_hidden_proto (__strsep_g)
  98 libc_hidden_proto (strnlen)
  99 libc_hidden_proto (__strnlen)
 100 libc_hidden_proto (memmem)
 101 extern __typeof (memmem) __memmem;
 102 libc_hidden_proto (__memmem)
 103 libc_hidden_proto (__ffs)
 104
 105 #if IS_IN (libc)
 106 /* Avoid hidden reference to IFUNC symbol __explicit_bzero_chk.  */
 107 void __explicit_bzero_chk_internal (void *, size_t, size_t)
 108   __THROW __nonnull ((1)) attribute_hidden;
 109 # define explicit_bzero(buf, len) \
 110   __explicit_bzero_chk_internal (buf, len, __bos0 (buf))
 111 #elif !IS_IN (nonlib)
 112 void __explicit_bzero_chk (void *, size_t, size_t) __THROW __nonnull ((1));
 113 # define explicit_bzero(buf, len) __explicit_bzero_chk (buf, len, __bos0 (buf))
 114 #endif
 115
 116 libc_hidden_builtin_proto (memchr)
 117 libc_hidden_builtin_proto (memcpy)
 118 libc_hidden_builtin_proto (mempcpy)
 119 libc_hidden_builtin_proto (memcmp)
 120 libc_hidden_builtin_proto (memmove)
 121 libc_hidden_builtin_proto (memset)
 122 libc_hidden_builtin_proto (strcat)
 123 libc_hidden_builtin_proto (strchr)
 124 libc_hidden_builtin_proto (strcmp)
 125 libc_hidden_builtin_proto (strcpy)
 126 libc_hidden_builtin_proto (strcspn)
 127 libc_hidden_builtin_proto (strlen)
 128 libc_hidden_builtin_proto (strncmp)
 129 libc_hidden_builtin_proto (strncpy)
 130 libc_hidden_builtin_proto (strpbrk)
 131 libc_hidden_builtin_proto (stpcpy)
 132 libc_hidden_builtin_proto (strrchr)
 133 libc_hidden_builtin_proto (strspn)
 134 libc_hidden_builtin_proto (strstr)
 135 libc_hidden_builtin_proto (ffs)
 136
 137 #if IS_IN (rtld)
 138 extern __typeof (__stpcpy) __stpcpy attribute_hidden;
 139 extern __typeof (__strdup) __strdup attribute_hidden;
 140 extern __typeof (__strerror_r) __strerror_r attribute_hidden;
 141 extern __typeof (__strsep_g) __strsep_g attribute_hidden;
 142
 143 extern __typeof (memchr) memchr attribute_hidden;
 144 extern __typeof (memcmp) memcmp attribute_hidden;
 145 extern __typeof (memcpy) memcpy attribute_hidden;
 146 extern __typeof (memmove) memmove attribute_hidden;
 147 extern __typeof (memset) memset attribute_hidden;
 148 extern __typeof (rawmemchr) rawmemchr attribute_hidden;
 149 extern __typeof (stpcpy) stpcpy attribute_hidden;
 150 extern __typeof (strchr) strchr attribute_hidden;
 151 extern __typeof (strcmp) strcmp attribute_hidden;
 152 extern __typeof (strlen) strlen attribute_hidden;
 153 extern __typeof (strnlen) strnlen attribute_hidden;
 154 extern __typeof (strsep) strsep attribute_hidden;
 155 #endif
 156
 157 #if (!IS_IN (libc) || !defined SHARED) \
 158   && !defined NO_MEMPCPY_STPCPY_REDIRECT
 159 /* Redirect calls to __builtin_mempcpy and __builtin_stpcpy to call
 160    __mempcpy and __stpcpy if not inlined.  */
 161 extern __typeof (mempcpy) mempcpy __asm__ ("__mempcpy");
 162 extern __typeof (stpcpy) stpcpy __asm__ ("__stpcpy");
 163 #endif
 164
 165 /* Redirect internal calls to builtins.  */
 166 #ifndef __stpcpy
 167 # define __stpcpy(dest, src) __builtin_stpcpy (dest, src)
 168 #endif
 169
 170 extern void *__memcpy_chk (void *__restrict __dest,
 171                            const void *__restrict __src, size_t __len,
 172                            size_t __destlen) __THROW;
 173 extern void *__memmove_chk (void *__dest, const void *__src, size_t __len,
 174                             size_t __destlen) __THROW;
 175 extern void *__mempcpy_chk (void *__restrict __dest,
 176                             const void *__restrict __src, size_t __len,
 177                             size_t __destlen) __THROW;
 178 extern void *__memset_chk (void *__dest, int __ch, size_t __len,
 179                            size_t __destlen) __THROW;
 180 extern char *__strcpy_chk (char *__restrict __dest,
 181                            const char *__restrict __src,
 182                            size_t __destlen) __THROW;
 183 extern char *__stpcpy_chk (char *__restrict __dest,
 184                            const char *__restrict __src,
 185                            size_t __destlen) __THROW;
 186 extern char *__strncpy_chk (char *__restrict __dest,
 187                             const char *__restrict __src,
 188                             size_t __len, size_t __destlen) __THROW;
 189 extern char *__strcat_chk (char *__restrict __dest,
 190                            const char *__restrict __src,
 191                            size_t __destlen) __THROW;
 192 extern char *__strncat_chk (char *__restrict __dest,
 193                             const char *__restrict __src,
 194                             size_t __len, size_t __destlen) __THROW;
 195 #endif
 196
 197 #endif