include/string.h

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