diff options
Diffstat (limited to 'include/linux/string.h')
| -rw-r--r-- | include/linux/string.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/linux/string.h b/include/linux/string.h index 091ccab395..3606620739 100644 --- a/include/linux/string.h +++ b/include/linux/string.h @@ -50,6 +50,19 @@ extern int strncasecmp(const char *s1, const char *s2, __kernel_size_t len); #ifndef __HAVE_ARCH_STRCHR extern char * strchr(const char *,int); #endif + +/** + * strchrnul() - return position of a character in the string, or end of string + * + * The strchrnul() function is like strchr() except that if c is not found + * in s, then it returns a pointer to the nul byte at the end of s, rather than + * NULL + * @s: string to search + * @c: character to search for + * @return position of @c in @s, or end of @s if not found + */ +const char *strchrnul(const char *s, int c); + #ifndef __HAVE_ARCH_STRRCHR extern char * strrchr(const char *,int); #endif @@ -63,6 +76,21 @@ extern __kernel_size_t strlen(const char *); #ifndef __HAVE_ARCH_STRNLEN extern __kernel_size_t strnlen(const char *,__kernel_size_t); #endif + +#ifndef __HAVE_ARCH_STRCSPN +/** + * strcspn() - find span of string without given characters + * + * Calculates the length of the initial segment of @s which consists entirely + * of bsytes not in reject. + * + * @s: string to search + * @reject: strings which cause the search to halt + * @return number of characters at the start of @s which are not in @reject + */ +size_t strcspn(const char *s, const char *reject); +#endif + #ifndef __HAVE_ARCH_STRDUP extern char * strdup(const char *); #endif |