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9af869c414
This introduces strlcat, which provides a safer interface than strncat. It never copies more than its size bytes, including the terminating nul. In addition, it never reads past dest[size - 1], even if dest is not nul-terminated. This also removes the stub for dwc3 now that we have a proper implementation. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
140 lines
3.7 KiB
C
140 lines
3.7 KiB
C
#ifndef _LINUX_STRING_H_
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#define _LINUX_STRING_H_
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#include <linux/types.h> /* for size_t */
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#include <linux/stddef.h> /* for NULL */
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern char * ___strtok;
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extern char * strpbrk(const char *,const char *);
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extern char * strtok(char *,const char *);
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extern char * strsep(char **,const char *);
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extern __kernel_size_t strspn(const char *,const char *);
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/*
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* Include machine specific inline routines
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*/
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#include <asm/string.h>
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#ifndef __HAVE_ARCH_STRCPY
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extern char * strcpy(char *,const char *);
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#endif
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#ifndef __HAVE_ARCH_STRNCPY
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extern char * strncpy(char *,const char *, __kernel_size_t);
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#endif
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#ifndef __HAVE_ARCH_STRLCPY
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size_t strlcpy(char *, const char *, size_t);
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#endif
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#ifndef __HAVE_ARCH_STRCAT
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extern char * strcat(char *, const char *);
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#endif
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#ifndef __HAVE_ARCH_STRNCAT
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extern char * strncat(char *, const char *, __kernel_size_t);
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#endif
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#ifndef __HAVE_ARCH_STRLCAT
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size_t strlcat(char *, const char *, size_t);
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#endif
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#ifndef __HAVE_ARCH_STRCMP
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extern int strcmp(const char *,const char *);
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#endif
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#ifndef __HAVE_ARCH_STRNCMP
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extern int strncmp(const char *,const char *,__kernel_size_t);
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#endif
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#ifndef __HAVE_ARCH_STRCASECMP
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int strcasecmp(const char *s1, const char *s2);
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#endif
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#ifndef __HAVE_ARCH_STRNCASECMP
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extern int strncasecmp(const char *s1, const char *s2, __kernel_size_t len);
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#endif
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#ifndef __HAVE_ARCH_STRCHR
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extern char * strchr(const char *,int);
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#endif
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/**
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* strchrnul() - return position of a character in the string, or end of string
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*
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* The strchrnul() function is like strchr() except that if c is not found
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* in s, then it returns a pointer to the nul byte at the end of s, rather than
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* NULL
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* @s: string to search
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* @c: character to search for
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* @return position of @c in @s, or end of @s if not found
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*/
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const char *strchrnul(const char *s, int c);
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#ifndef __HAVE_ARCH_STRRCHR
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extern char * strrchr(const char *,int);
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#endif
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#include <linux/linux_string.h>
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#ifndef __HAVE_ARCH_STRSTR
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extern char * strstr(const char *,const char *);
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#endif
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#ifndef __HAVE_ARCH_STRLEN
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extern __kernel_size_t strlen(const char *);
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#endif
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#ifndef __HAVE_ARCH_STRNLEN
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extern __kernel_size_t strnlen(const char *,__kernel_size_t);
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#endif
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#ifndef __HAVE_ARCH_STRCSPN
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/**
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* strcspn() - find span of string without given characters
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*
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* Calculates the length of the initial segment of @s which consists entirely
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* of bsytes not in reject.
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*
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* @s: string to search
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* @reject: strings which cause the search to halt
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* @return number of characters at the start of @s which are not in @reject
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*/
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size_t strcspn(const char *s, const char *reject);
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#endif
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#ifdef CONFIG_SANDBOX
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# define strdup sandbox_strdup
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# define strndup sandbox_strndup
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#endif
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#ifndef __HAVE_ARCH_STRDUP
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extern char * strdup(const char *);
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extern char * strndup(const char *, size_t);
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#endif
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#ifndef __HAVE_ARCH_STRSWAB
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extern char * strswab(const char *);
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#endif
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#ifndef __HAVE_ARCH_MEMSET
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extern void * memset(void *,int,__kernel_size_t);
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#endif
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#ifndef __HAVE_ARCH_MEMCPY
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extern void * memcpy(void *,const void *,__kernel_size_t);
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#endif
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#ifndef __HAVE_ARCH_MEMMOVE
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extern void * memmove(void *,const void *,__kernel_size_t);
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#endif
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#ifndef __HAVE_ARCH_MEMSCAN
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extern void * memscan(void *,int,__kernel_size_t);
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#endif
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#ifndef __HAVE_ARCH_MEMCMP
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extern int memcmp(const void *,const void *,__kernel_size_t);
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#endif
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#ifndef __HAVE_ARCH_MEMCHR
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extern void * memchr(const void *,int,__kernel_size_t);
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#endif
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#ifndef __HAVE_ARCH_MEMCHR_INV
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void *memchr_inv(const void *, int, size_t);
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#endif
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unsigned long ustrtoul(const char *cp, char **endp, unsigned int base);
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unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _LINUX_STRING_H_ */
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