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 #include <locale.h>
   8
   9 extern void *__memccpy (void *__dest, const void *__src,
  10                         int __c, size_t __n);
  11
  12 extern size_t __strnlen (const char *__string, size_t __maxlen)
  13      __attribute_pure__;
  14
  15 extern char *__strsep (char **__stringp, const char *__delim);
  16 libc_hidden_proto (__strsep)
  17
  18 extern int __strverscmp (const char *__s1, const char *__s2)
  19      __attribute_pure__;
  20
  21 extern int __strncasecmp (const char *__s1, const char *__s2,
  22                           size_t __n)
  23      __attribute_pure__;
  24
  25 extern int __strcasecmp (const char *__s1, const char *__s2)
  26      __attribute_pure__;
  27
  28 extern char *__strcasestr (const char *__haystack, const char *__needle)
  29      __attribute_pure__;
  30
  31 extern char *__strdup (const char *__string)
  32      __attribute_malloc__;
  33 extern char *__strndup (const char *__string, size_t __n)
  34      __attribute_malloc__;
  35
  36 extern void *__rawmemchr (const void *__s, int __c)
  37      __attribute_pure__;
  38
  39 extern char *__strchrnul (const char *__s, int __c)
  40      __attribute_pure__;
  41
  42 extern void *__memrchr (const void *__s, int __c, size_t __n)
  43      __attribute_pure__;
  44
  45 extern void *__memchr (const void *__s, int __c, size_t __n)
  46      __attribute_pure__;
  47
  48 extern void __bzero (void *__s, size_t __n) __THROW __nonnull ((1));
  49
  50 extern int __ffs (int __i) __attribute__ ((const));
  51
  52 extern char *__strerror_r (int __errnum, char *__buf, size_t __buflen);
  53
  54 extern char *__strerror_l (int __errnum, locale_t __loc);
  55
  56 extern const char *__sigdescr_np (int __errnum);
  57 libc_hidden_proto (__sigdescr_np)
  58
  59 /* Get _STRING_ARCH_unaligned.  */
  60 #include <string_private.h>
  61 #endif
  62
  63 #include <string/string.h>
  64
  65 #ifndef _ISOMAC
  66 extern __typeof (strcoll_l) __strcoll_l;
  67 extern __typeof (strxfrm_l) __strxfrm_l;
  68 extern __typeof (strcasecmp_l) __strcasecmp_l;
  69 extern __typeof (strncasecmp_l) __strncasecmp_l;
  70
  71 /* Alternative version which doesn't pollute glibc's namespace.  */
  72 #if IS_IN (libc)
  73 # undef strndupa
  74 # define strndupa(s, n)                                                       \
  75   (__extension__                                                              \
  76     ({                                                                        \
  77       const char *__old = (s);                                                \
  78       size_t __len = __strnlen (__old, (n));                                  \
  79       char *__new = (char *) __builtin_alloca (__len + 1);                    \
  80       __new[__len] = '\0';                                                    \
  81       (char *) memcpy (__new, __old, __len);                                  \
  82     }))
  83 #endif
  84
  85 libc_hidden_proto (__mempcpy)
  86 #ifndef __NO_STRING_INLINES
  87 # define __mempcpy(dest, src, n) __builtin_mempcpy (dest, src, n)
  88 #endif
  89 libc_hidden_proto (__stpcpy)
  90 #ifndef __NO_STRING_INLINES
  91 # define __stpcpy(dest, src) __builtin_stpcpy (dest, src)
  92 #endif
  93 libc_hidden_proto (__stpncpy)
  94 libc_hidden_proto (__rawmemchr)
  95 libc_hidden_proto (__strcasecmp)
  96 libc_hidden_proto (__strcasecmp_l)
  97 libc_hidden_proto (__strncasecmp_l)
  98 extern __typeof (strncat) __strncat;
  99 libc_hidden_proto (__strncat)
 100 libc_hidden_proto (__strdup)
 101 libc_hidden_proto (__strndup)
 102 libc_hidden_proto (__strerror_r)
 103 libc_hidden_proto (__strverscmp)
 104 libc_hidden_proto (basename)
 105 extern char *__basename (const char *__filename) __THROW __nonnull ((1));
 106 libc_hidden_proto (__basename)
 107 libc_hidden_proto (strcoll)
 108 libc_hidden_proto (__strcoll_l)
 109 libc_hidden_proto (__strxfrm_l)
 110 libc_hidden_proto (__strtok_r)
 111 extern char *__strsep_g (char **__stringp, const char *__delim);
 112 libc_hidden_proto (__strsep_g)
 113 libc_hidden_proto (strnlen)
 114 libc_hidden_proto (__strnlen)
 115 libc_hidden_proto (__memcmpeq)
 116 libc_hidden_proto (memmem)
 117 extern __typeof (memmem) __memmem;
 118 libc_hidden_proto (__memmem)
 119 libc_hidden_proto (__ffs)
 120 libc_hidden_proto (__strerror_l)
 121
 122 #if IS_IN (libc)
 123 /* Avoid hidden reference to IFUNC symbol __explicit_bzero_chk.  */
 124 void __explicit_bzero_chk_internal (void *, size_t, size_t)
 125   __THROW __nonnull ((1)) attribute_hidden;
 126 # define explicit_bzero(buf, len) \
 127   __explicit_bzero_chk_internal (buf, len, __glibc_objsize0 (buf))
 128 #elif !IS_IN (nonlib)
 129 void __explicit_bzero_chk (void *, size_t, size_t) __THROW __nonnull ((1));
 130 # define explicit_bzero(buf, len) __explicit_bzero_chk (buf, len,             \
 131                                                         __glibc_objsize0 (buf))
 132 #endif
 133
 134 libc_hidden_builtin_proto (memchr)
 135 libc_hidden_builtin_proto (memcpy)
 136 libc_hidden_builtin_proto (mempcpy)
 137 libc_hidden_builtin_proto (memcmp)
 138 libc_hidden_builtin_proto (memmove)
 139 libc_hidden_builtin_proto (memset)
 140 libc_hidden_builtin_proto (strcat)
 141 libc_hidden_builtin_proto (strchr)
 142 libc_hidden_builtin_proto (strcmp)
 143 libc_hidden_builtin_proto (strcpy)
 144 libc_hidden_builtin_proto (strcspn)
 145 libc_hidden_builtin_proto (strlen)
 146 libc_hidden_builtin_proto (strncmp)
 147 libc_hidden_builtin_proto (strncpy)
 148 libc_hidden_builtin_proto (strpbrk)
 149 libc_hidden_builtin_proto (stpcpy)
 150 libc_hidden_builtin_proto (strrchr)
 151 libc_hidden_builtin_proto (strspn)
 152 libc_hidden_builtin_proto (strstr)
 153 libc_hidden_builtin_proto (ffs)
 154
 155 #if IS_IN (rtld)
 156 extern __typeof (__stpcpy) __stpcpy attribute_hidden;
 157 extern __typeof (__strdup) __strdup attribute_hidden;
 158 extern __typeof (__strerror_r) __strerror_r attribute_hidden;
 159 extern __typeof (__strsep_g) __strsep_g attribute_hidden;
 160
 161 extern __typeof (memchr) memchr attribute_hidden;
 162 extern __typeof (memcmp) memcmp attribute_hidden;
 163 extern __typeof (memcpy) memcpy attribute_hidden;
 164 extern __typeof (memmove) memmove attribute_hidden;
 165 extern __typeof (memset) memset attribute_hidden;
 166 extern __typeof (rawmemchr) rawmemchr attribute_hidden;
 167 extern __typeof (stpcpy) stpcpy attribute_hidden;
 168 extern __typeof (strchr) strchr attribute_hidden;
 169 extern __typeof (strcmp) strcmp attribute_hidden;
 170 extern __typeof (strlen) strlen attribute_hidden;
 171 extern __typeof (strnlen) strnlen attribute_hidden;
 172 extern __typeof (strsep) strsep attribute_hidden;
 173 #endif
 174
 175 #if (!IS_IN (libc) || !defined SHARED) \
 176   && !defined NO_MEMPCPY_STPCPY_REDIRECT
 177 /* Redirect calls to __builtin_mempcpy and __builtin_stpcpy to call
 178    __mempcpy and __stpcpy if not inlined.  */
 179 extern __typeof (mempcpy) mempcpy __asm__ ("__mempcpy");
 180 extern __typeof (stpcpy) stpcpy __asm__ ("__stpcpy");
 181 #endif
 182
 183 extern void *__memcpy_chk (void *__restrict __dest,
 184                            const void *__restrict __src, size_t __len,
 185                            size_t __destlen) __THROW;
 186 extern void *__memmove_chk (void *__dest, const void *__src, size_t __len,
 187                             size_t __destlen) __THROW;
 188 extern void *__mempcpy_chk (void *__restrict __dest,
 189                             const void *__restrict __src, size_t __len,
 190                             size_t __destlen) __THROW;
 191 extern void *__memset_chk (void *__dest, int __ch, size_t __len,
 192                            size_t __destlen) __THROW;
 193 extern char *__strcpy_chk (char *__restrict __dest,
 194                            const char *__restrict __src,
 195                            size_t __destlen) __THROW;
 196 extern char *__stpcpy_chk (char *__restrict __dest,
 197                            const char *__restrict __src,
 198                            size_t __destlen) __THROW;
 199 extern char *__strncpy_chk (char *__restrict __dest,
 200                             const char *__restrict __src,
 201                             size_t __len, size_t __destlen) __THROW;
 202 extern char *__strcat_chk (char *__restrict __dest,
 203                            const char *__restrict __src,
 204                            size_t __destlen) __THROW;
 205 extern char *__strncat_chk (char *__restrict __dest,
 206                             const char *__restrict __src,
 207                             size_t __len, size_t __destlen) __THROW;
 208 #endif
 209
 210 #endif