include/linux/string.h

   1 #ifndef _LINUX_STRING_H_
   2 #define _LINUX_STRING_H_
   3
   4 /* We don't want strings.h stuff being user by user stuff by accident */
   5
   6 #ifdef __KERNEL__
   7
   8 #include <linux/compiler.h>     /* for inline */
   9 #include <linux/types.h>        /* for size_t */
  10 #include <linux/stddef.h>       /* for NULL */
  11
  12 #ifdef __cplusplus
  13 extern "C" {
  14 #endif
  15
  16 extern char *strndup_user(const char __user *, long);
  17
  18 /*
  19  * Include machine specific inline routines
  20  */
  21 #include <asm/string.h>
  22
  23 #ifndef __HAVE_ARCH_STRCPY
  24 extern char * strcpy(char *,const char *);
  25 #endif
  26 #ifndef __HAVE_ARCH_STRNCPY
  27 extern char * strncpy(char *,const char *, __kernel_size_t);
  28 #endif
  29 #ifndef __HAVE_ARCH_STRLCPY
  30 size_t strlcpy(char *, const char *, size_t);
  31 #endif
  32 #ifndef __HAVE_ARCH_STRCAT
  33 extern char * strcat(char *, const char *);
  34 #endif
  35 #ifndef __HAVE_ARCH_STRNCAT
  36 extern char * strncat(char *, const char *, __kernel_size_t);
  37 #endif
  38 #ifndef __HAVE_ARCH_STRLCAT
  39 extern size_t strlcat(char *, const char *, __kernel_size_t);
  40 #endif
  41 #ifndef __HAVE_ARCH_STRCMP
  42 extern int strcmp(const char *,const char *);
  43 #endif
  44 #ifndef __HAVE_ARCH_STRNCMP
  45 extern int strncmp(const char *,const char *,__kernel_size_t);
  46 #endif
  47 #ifndef __HAVE_ARCH_STRNICMP
  48 extern int strnicmp(const char *, const char *, __kernel_size_t);
  49 #endif
  50 #ifndef __HAVE_ARCH_STRCHR
  51 extern char * strchr(const char *,int);
  52 #endif
  53 #ifndef __HAVE_ARCH_STRNCHR
  54 extern char * strnchr(const char *, size_t, int);
  55 #endif
  56 #ifndef __HAVE_ARCH_STRRCHR
  57 extern char * strrchr(const char *,int);
  58 #endif
  59 extern char * strstrip(char *);
  60 #ifndef __HAVE_ARCH_STRSTR
  61 extern char * strstr(const char *,const char *);
  62 #endif
  63 #ifndef __HAVE_ARCH_STRLEN
  64 extern __kernel_size_t strlen(const char *);
  65 #endif
  66 #ifndef __HAVE_ARCH_STRNLEN
  67 extern __kernel_size_t strnlen(const char *,__kernel_size_t);
  68 #endif
  69 #ifndef __HAVE_ARCH_STRPBRK
  70 extern char * strpbrk(const char *,const char *);
  71 #endif
  72 #ifndef __HAVE_ARCH_STRSEP
  73 extern char * strsep(char **,const char *);
  74 #endif
  75 #ifndef __HAVE_ARCH_STRSPN
  76 extern __kernel_size_t strspn(const char *,const char *);
  77 #endif
  78 #ifndef __HAVE_ARCH_STRCSPN
  79 extern __kernel_size_t strcspn(const char *,const char *);
  80 #endif
  81
  82 #ifndef __HAVE_ARCH_MEMSET
  83 extern void * memset(void *,int,__kernel_size_t);
  84 #endif
  85 #ifndef __HAVE_ARCH_MEMCPY
  86 extern void * memcpy(void *,const void *,__kernel_size_t);
  87 #endif
  88 #ifndef __HAVE_ARCH_MEMMOVE
  89 extern void * memmove(void *,const void *,__kernel_size_t);
  90 #endif
  91 #ifndef __HAVE_ARCH_MEMSCAN
  92 extern void * memscan(void *,int,__kernel_size_t);
  93 #endif
  94 #ifndef __HAVE_ARCH_MEMCMP
  95 extern int memcmp(const void *,const void *,__kernel_size_t);
  96 #endif
  97 #ifndef __HAVE_ARCH_MEMCHR
  98 extern void * memchr(const void *,int,__kernel_size_t);
  99 #endif
 100
 101 extern char *kstrdup(const char *s, gfp_t gfp);
 102 extern void *kmemdup(const void *src, size_t len, gfp_t gfp);
 103
 104 #ifdef __cplusplus
 105 }
 106 #endif
 107
 108 #endif
 109 #endif /* _LINUX_STRING_H_ */