diff options
Diffstat (limited to 'kernel/include/linux/string.h')
| -rw-r--r-- | kernel/include/linux/string.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/kernel/include/linux/string.h b/kernel/include/linux/string.h new file mode 100644 index 000000000..e40099e58 --- /dev/null +++ b/kernel/include/linux/string.h @@ -0,0 +1,161 @@ +#ifndef _LINUX_STRING_H_ +#define _LINUX_STRING_H_ + + +#include <linux/compiler.h> /* for inline */ +#include <linux/types.h> /* for size_t */ +#include <linux/stddef.h> /* for NULL */ +#include <stdarg.h> +#include <uapi/linux/string.h> + +extern char *strndup_user(const char __user *, long); +extern void *memdup_user(const void __user *, size_t); + +/* + * Include machine specific inline routines + */ +#include <asm/string.h> + +#ifndef __HAVE_ARCH_STRCPY +extern char * strcpy(char *,const char *); +#endif +#ifndef __HAVE_ARCH_STRNCPY +extern char * strncpy(char *,const char *, __kernel_size_t); +#endif +#ifndef __HAVE_ARCH_STRLCPY +size_t strlcpy(char *, const char *, size_t); +#endif +#ifndef __HAVE_ARCH_STRCAT +extern char * strcat(char *, const char *); +#endif +#ifndef __HAVE_ARCH_STRNCAT +extern char * strncat(char *, const char *, __kernel_size_t); +#endif +#ifndef __HAVE_ARCH_STRLCAT +extern size_t strlcat(char *, const char *, __kernel_size_t); +#endif +#ifndef __HAVE_ARCH_STRCMP +extern int strcmp(const char *,const char *); +#endif +#ifndef __HAVE_ARCH_STRNCMP +extern int strncmp(const char *,const char *,__kernel_size_t); +#endif +#ifndef __HAVE_ARCH_STRCASECMP +extern int strcasecmp(const char *s1, const char *s2); +#endif +#ifndef __HAVE_ARCH_STRNCASECMP +extern int strncasecmp(const char *s1, const char *s2, size_t n); +#endif +#ifndef __HAVE_ARCH_STRCHR +extern char * strchr(const char *,int); +#endif +#ifndef __HAVE_ARCH_STRCHRNUL +extern char * strchrnul(const char *,int); +#endif +#ifndef __HAVE_ARCH_STRNCHR +extern char * strnchr(const char *, size_t, int); +#endif +#ifndef __HAVE_ARCH_STRRCHR +extern char * strrchr(const char *,int); +#endif +extern char * __must_check skip_spaces(const char *); + +extern char *strim(char *); + +static inline __must_check char *strstrip(char *str) +{ + return strim(str); +} + +#ifndef __HAVE_ARCH_STRSTR +extern char * strstr(const char *, const char *); +#endif +#ifndef __HAVE_ARCH_STRNSTR +extern char * strnstr(const char *, const char *, size_t); +#endif +#ifndef __HAVE_ARCH_STRLEN +extern __kernel_size_t strlen(const char *); +#endif +#ifndef __HAVE_ARCH_STRNLEN +extern __kernel_size_t strnlen(const char *,__kernel_size_t); +#endif +#ifndef __HAVE_ARCH_STRPBRK +extern char * strpbrk(const char *,const char *); +#endif +#ifndef __HAVE_ARCH_STRSEP +extern char * strsep(char **,const char *); +#endif +#ifndef __HAVE_ARCH_STRSPN +extern __kernel_size_t strspn(const char *,const char *); +#endif +#ifndef __HAVE_ARCH_STRCSPN +extern __kernel_size_t strcspn(const char *,const char *); +#endif + +#ifndef __HAVE_ARCH_MEMSET +extern void * memset(void *,int,__kernel_size_t); +#endif +#ifndef __HAVE_ARCH_MEMCPY +extern void * memcpy(void *,const void *,__kernel_size_t); +#endif +#ifndef __HAVE_ARCH_MEMMOVE +extern void * memmove(void *,const void *,__kernel_size_t); +#endif +#ifndef __HAVE_ARCH_MEMSCAN +extern void * memscan(void *,int,__kernel_size_t); +#endif +#ifndef __HAVE_ARCH_MEMCMP +extern int memcmp(const void *,const void *,__kernel_size_t); +#endif +#ifndef __HAVE_ARCH_MEMCHR +extern void * memchr(const void *,int,__kernel_size_t); +#endif +void *memchr_inv(const void *s, int c, size_t n); + +extern void kfree_const(const void *x); + +extern char *kstrdup(const char *s, gfp_t gfp); +extern const char *kstrdup_const(const char *s, gfp_t gfp); +extern char *kstrndup(const char *s, size_t len, gfp_t gfp); +extern void *kmemdup(const void *src, size_t len, gfp_t gfp); + +extern char **argv_split(gfp_t gfp, const char *str, int *argcp); +extern void argv_free(char **argv); + +extern bool sysfs_streq(const char *s1, const char *s2); +extern int strtobool(const char *s, bool *res); + +#ifdef CONFIG_BINARY_PRINTF +int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args); +int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf); +int bprintf(u32 *bin_buf, size_t size, const char *fmt, ...) __printf(3, 4); +#endif + +extern ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos, + const void *from, size_t available); + +/** + * strstarts - does @str start with @prefix? + * @str: string to examine + * @prefix: prefix to look for. + */ +static inline bool strstarts(const char *str, const char *prefix) +{ + return strncmp(str, prefix, strlen(prefix)) == 0; +} + +size_t memweight(const void *ptr, size_t bytes); +void memzero_explicit(void *s, size_t count); + +/** + * kbasename - return the last part of a pathname. + * + * @path: path to extract the filename from. + */ +static inline const char *kbasename(const char *path) +{ + const char *tail = strrchr(path, '/'); + return tail ? tail + 1 : path; +} + +#endif /* _LINUX_STRING_H_ */ |