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 libc_hidden_proto (__strsep)
  16
  17 extern int __strverscmp (const char *__s1, const char *__s2)
  18      __attribute_pure__;
  19
  20 extern int __strncasecmp (const char *__s1, const char *__s2,
  21                           size_t __n)
  22      __attribute_pure__;
  23
  24 extern int __strcasecmp (const char *__s1, const char *__s2)
  25      __attribute_pure__;
  26
  27 extern char *__strcasestr (const char *__haystack, const char *__needle)
  28      __attribute_pure__;
  29
  30 extern char *__strdup (const char *__string)
  31      __attribute_malloc__;
  32 extern char *__strndup (const char *__string, size_t __n)
  33      __attribute_malloc__;
  34
  35 extern void *__rawmemchr (const void *__s, int __c)
  36      __attribute_pure__;
  37
  38 extern char *__strchrnul (const char *__s, int __c)
  39      __attribute_pure__;
  40
  41 extern void *__memrchr (const void *__s, int __c, size_t __n)
  42      __attribute_pure__;
  43
  44 extern void *__memchr (const void *__s, int __c, size_t __n)
  45      __attribute_pure__;
  46
  47 extern void __bzero (void *__s, size_t __n) __THROW __nonnull ((1));
  48
  49 extern int __ffs (int __i) __attribute__ ((const));
  50
  51 extern char *__strerror_r (int __errnum, char *__buf, size_t __buflen);
  52
  53 /* Get _STRING_ARCH_unaligned.  */
  54 #include <string_private.h>
  55 #endif
  56
  57 #include <string/string.h>
  58
  59 #ifndef _ISOMAC
  60 extern __typeof (strcoll_l) __strcoll_l;
  61 extern __typeof (strxfrm_l) __strxfrm_l;
  62 extern __typeof (strcasecmp_l) __strcasecmp_l;
  63 extern __typeof (strncasecmp_l) __strncasecmp_l;
  64
  65 /* Alternative version which doesn't pollute glibc's namespace.  */
  66 #if IS_IN (libc)
  67 # undef strndupa
  68 # define strndupa(s, n)                                                       \
  69   (__extension__                                                              \
  70     ({                                                                        \
  71       const char *__old = (s);                                                \
  72       size_t __len = __strnlen (__old, (n));                                  \
  73       char *__new = (char *) __builtin_alloca (__len + 1);                    \
  74       __new[__len] = '\0';                                                    \
  75       (char *) memcpy (__new, __old, __len);                                  \
  76     }))
  77 #endif
  78
  79 libc_hidden_proto (__mempcpy)
  80 #ifndef __NO_STRING_INLINES
  81 # define __mempcpy(dest, src, n) __builtin_mempcpy (dest, src, n)
  82 #endif
  83 libc_hidden_proto (__stpcpy)
  84 #ifndef __NO_STRING_INLINES
  85 # define __stpcpy(dest, src) __builtin_stpcpy (dest, src)
  86 #endif
  87 libc_hidden_proto (__stpncpy)
  88 libc_hidden_proto (__rawmemchr)
  89 libc_hidden_proto (__strcasecmp)
  90 libc_hidden_proto (__strcasecmp_l)
  91 libc_hidden_proto (__strncasecmp_l)
  92 extern __typeof (strncat) __strncat;
  93 libc_hidden_proto (__strncat)
  94 libc_hidden_proto (__strdup)
  95 libc_hidden_proto (__strndup)
  96 libc_hidden_proto (__strerror_r)
  97 libc_hidden_proto (__strverscmp)
  98 libc_hidden_proto (basename)
  99 extern char *__basename (const char *__filename) __THROW __nonnull ((1));
 100 libc_hidden_proto (__basename)
 101 libc_hidden_proto (strcoll)
 102 libc_hidden_proto (__strcoll_l)
 103 libc_hidden_proto (__strxfrm_l)
 104 libc_hidden_proto (__strtok_r)
 105 extern char *__strsep_g (char **__stringp, const char *__delim);
 106 libc_hidden_proto (__strsep_g)
 107 libc_hidden_proto (strnlen)
 108 libc_hidden_proto (__strnlen)
 109 libc_hidden_proto (memmem)
 110 extern __typeof (memmem) __memmem;
 111 libc_hidden_proto (__memmem)
 112 libc_hidden_proto (__ffs)
 113
 114 #if IS_IN (libc)
 115 /* Avoid hidden reference to IFUNC symbol __explicit_bzero_chk.  */
 116 void __explicit_bzero_chk_internal (void *, size_t, size_t)
 117   __THROW __nonnull ((1)) attribute_hidden;
 118 # define explicit_bzero(buf, len) \
 119   __explicit_bzero_chk_internal (buf, len, __bos0 (buf))
 120 #elif !IS_IN (nonlib)
 121 void __explicit_bzero_chk (void *, size_t, size_t) __THROW __nonnull ((1));
 122 # define explicit_bzero(buf, len) __explicit_bzero_chk (buf, len, __bos0 (buf))
 123 #endif
 124
 125 libc_hidden_builtin_proto (memchr)
 126 libc_hidden_builtin_proto (memcpy)
 127 libc_hidden_builtin_proto (mempcpy)
 128 libc_hidden_builtin_proto (memcmp)
 129 libc_hidden_builtin_proto (memmove)
 130 libc_hidden_builtin_proto (memset)
 131 libc_hidden_builtin_proto (strcat)
 132 libc_hidden_builtin_proto (strchr)
 133 libc_hidden_builtin_proto (strcmp)
 134 libc_hidden_builtin_proto (strcpy)
 135 libc_hidden_builtin_proto (strcspn)
 136 libc_hidden_builtin_proto (strlen)
 137 libc_hidden_builtin_proto (strncmp)
 138 libc_hidden_builtin_proto (strncpy)
 139 libc_hidden_builtin_proto (strpbrk)
 140 libc_hidden_builtin_proto (stpcpy)
 141 libc_hidden_builtin_proto (strrchr)
 142 libc_hidden_builtin_proto (strspn)
 143 libc_hidden_builtin_proto (strstr)
 144 libc_hidden_builtin_proto (ffs)
 145
 146 #if IS_IN (rtld) && !defined NO_RTLD_HIDDEN
 147 extern __typeof (__stpcpy) __stpcpy attribute_hidden;
 148 extern __typeof (__strdup) __strdup attribute_hidden;
 149 extern __typeof (__strerror_r) __strerror_r attribute_hidden;
 150 extern __typeof (__strsep_g) __strsep_g attribute_hidden;
 151
 152 extern __typeof (memchr) memchr attribute_hidden;
 153 extern __typeof (memcmp) memcmp attribute_hidden;
 154 extern __typeof (memcpy) memcpy attribute_hidden;
 155 extern __typeof (memmove) memmove attribute_hidden;
 156 extern __typeof (memset) memset attribute_hidden;
 157 extern __typeof (rawmemchr) rawmemchr attribute_hidden;
 158 extern __typeof (stpcpy) stpcpy attribute_hidden;
 159 extern __typeof (strchr) strchr attribute_hidden;
 160 extern __typeof (strcmp) strcmp attribute_hidden;
 161 extern __typeof (strlen) strlen attribute_hidden;
 162 extern __typeof (strnlen) strnlen attribute_hidden;
 163 extern __typeof (strsep) strsep attribute_hidden;
 164 #endif
 165
 166 #if (!IS_IN (libc) || !defined SHARED) \
 167   && !defined NO_MEMPCPY_STPCPY_REDIRECT
 168 /* Redirect calls to __builtin_mempcpy and __builtin_stpcpy to call
 169    __mempcpy and __stpcpy if not inlined.  */
 170 extern __typeof (mempcpy) mempcpy __asm__ ("__mempcpy");
 171 extern __typeof (stpcpy) stpcpy __asm__ ("__stpcpy");
 172 #endif
 173
 174 extern void *__memcpy_chk (void *__restrict __dest,
 175                            const void *__restrict __src, size_t __len,
 176                            size_t __destlen) __THROW;
 177 extern void *__memmove_chk (void *__dest, const void *__src, size_t __len,
 178                             size_t __destlen) __THROW;
 179 extern void *__mempcpy_chk (void *__restrict __dest,
 180                             const void *__restrict __src, size_t __len,
 181                             size_t __destlen) __THROW;
 182 extern void *__memset_chk (void *__dest, int __ch, size_t __len,
 183                            size_t __destlen) __THROW;
 184 extern char *__strcpy_chk (char *__restrict __dest,
 185                            const char *__restrict __src,
 186                            size_t __destlen) __THROW;
 187 extern char *__stpcpy_chk (char *__restrict __dest,
 188                            const char *__restrict __src,
 189                            size_t __destlen) __THROW;
 190 extern char *__strncpy_chk (char *__restrict __dest,
 191                             const char *__restrict __src,
 192                             size_t __len, size_t __destlen) __THROW;
 193 extern char *__strcat_chk (char *__restrict __dest,
 194                            const char *__restrict __src,
 195                            size_t __destlen) __THROW;
 196 extern char *__strncat_chk (char *__restrict __dest,
 197                             const char *__restrict __src,
 198                             size_t __len, size_t __destlen) __THROW;
 199 #endif
 200
 201 #endif