1 #ifndef _LINUX_STRING_H_ 2 #define _LINUX_STRING_H_ 3 4 #include <linux/types.h> /* for size_t */ 5 #include <linux/stddef.h> /* for NULL */ 6 7 #ifdef __cplusplus 8 extern "C" { 9 #endif 10 11 extern char * ___strtok; 12 extern char * strpbrk(const char *,const char *); 13 extern char * strtok(char *,const char *); 14 extern char * strsep(char **,const char *); 15 extern __kernel_size_t strspn(const char *,const char *); 16 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_STRCMP 39 extern int strcmp(const char *,const char *); 40 #endif 41 #ifndef __HAVE_ARCH_STRNCMP 42 extern int strncmp(const char *,const char *,__kernel_size_t); 43 #endif 44 #ifndef __HAVE_ARCH_STRCASECMP 45 int strcasecmp(const char *s1, const char *s2); 46 #endif 47 #ifndef __HAVE_ARCH_STRNCASECMP 48 extern int strncasecmp(const char *s1, const char *s2, __kernel_size_t len); 49 #endif 50 #ifndef __HAVE_ARCH_STRCHR 51 extern char * strchr(const char *,int); 52 #endif 53 54 /** 55 * strchrnul() - return position of a character in the string, or end of string 56 * 57 * The strchrnul() function is like strchr() except that if c is not found 58 * in s, then it returns a pointer to the nul byte at the end of s, rather than 59 * NULL 60 * @s: string to search 61 * @c: character to search for 62 * @return position of @c in @s, or end of @s if not found 63 */ 64 const char *strchrnul(const char *s, int c); 65 66 #ifndef __HAVE_ARCH_STRRCHR 67 extern char * strrchr(const char *,int); 68 #endif 69 #include <linux/linux_string.h> 70 #ifndef __HAVE_ARCH_STRSTR 71 extern char * strstr(const char *,const char *); 72 #endif 73 #ifndef __HAVE_ARCH_STRLEN 74 extern __kernel_size_t strlen(const char *); 75 #endif 76 #ifndef __HAVE_ARCH_STRNLEN 77 extern __kernel_size_t strnlen(const char *,__kernel_size_t); 78 #endif 79 80 #ifndef __HAVE_ARCH_STRCSPN 81 /** 82 * strcspn() - find span of string without given characters 83 * 84 * Calculates the length of the initial segment of @s which consists entirely 85 * of bsytes not in reject. 86 * 87 * @s: string to search 88 * @reject: strings which cause the search to halt 89 * @return number of characters at the start of @s which are not in @reject 90 */ 91 size_t strcspn(const char *s, const char *reject); 92 #endif 93 94 #ifdef CONFIG_SANDBOX 95 # define strdup sandbox_strdup 96 # define strndup sandbox_strndup 97 #endif 98 99 #ifndef __HAVE_ARCH_STRDUP 100 extern char * strdup(const char *); 101 extern char * strndup(const char *, size_t); 102 #endif 103 #ifndef __HAVE_ARCH_STRSWAB 104 extern char * strswab(const char *); 105 #endif 106 107 #ifndef __HAVE_ARCH_MEMSET 108 extern void * memset(void *,int,__kernel_size_t); 109 #endif 110 #ifndef __HAVE_ARCH_MEMCPY 111 extern void * memcpy(void *,const void *,__kernel_size_t); 112 #endif 113 #ifndef __HAVE_ARCH_MEMMOVE 114 extern void * memmove(void *,const void *,__kernel_size_t); 115 #endif 116 #ifndef __HAVE_ARCH_MEMSCAN 117 extern void * memscan(void *,int,__kernel_size_t); 118 #endif 119 #ifndef __HAVE_ARCH_MEMCMP 120 extern int memcmp(const void *,const void *,__kernel_size_t); 121 #endif 122 #ifndef __HAVE_ARCH_MEMCHR 123 extern void * memchr(const void *,int,__kernel_size_t); 124 #endif 125 #ifndef __HAVE_ARCH_MEMCHR_INV 126 void *memchr_inv(const void *, int, size_t); 127 #endif 128 129 unsigned long ustrtoul(const char *cp, char **endp, unsigned int base); 130 unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base); 131 132 #ifdef __cplusplus 133 } 134 #endif 135 136 #endif /* _LINUX_STRING_H_ */ 137