coreboot/src/include/string.h
Yu-Ping Wu 0dcdc0347c commonlib/bsd: Add strlen() and strnlen() functions
Add strlen() and strnlen() to commonlib/bsd by rewriting them from
scratch, and remove the same functions from coreboot and libpayload.

Note that in the existing libpayload implementation, these functions
return 0 for NULL strings. Given that POSIX doesn't require the NULL
check and that other major libc implementations (e.g. glibc [1]) don't
seem to do that, the new functions also don't perform the NULL check.

[1] https://github.com/bminor/glibc/blob/master/sysdeps/i386/strlen.c

Change-Id: I1203ec9affabe493bd14b46662d212b08240cced
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83830
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2024-08-14 03:09:03 +00:00

38 lines
1.3 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef STRING_H
#define STRING_H
#include <commonlib/bsd/string.h>
#include <stddef.h>
void *memcpy(void *dest, const void *src, size_t n);
void *memmove(void *dest, const void *src, size_t n);
void *memset(void *s, int c, size_t n);
int memcmp(const void *s1, const void *s2, size_t n);
void *memchr(const void *s, int c, size_t n);
char *strdup(const char *s);
char *strconcat(const char *s1, const char *s2);
char *strchr(const char *s, int c);
char *strncpy(char *to, const char *from, size_t count);
char *strcpy(char *dst, const char *src);
int strcmp(const char *s1, const char *s2);
int strncmp(const char *s1, const char *s2, size_t maxlen);
size_t strspn(const char *str, const char *spn);
size_t strcspn(const char *str, const char *spn);
char *strstr(const char *haystack, const char *needle);
char *strtok_r(char *str, const char *delim, char **ptr);
char *strtok(char *str, const char *delim);
long atol(const char *str);
/**
* Find a character in a string.
*
* @param s The string.
* @param c The character.
* @return A pointer to the last occurrence of the character in the
* string, or NULL if the character was not encountered within the string.
*/
char *strrchr(const char *s, int c);
#endif /* STRING_H */