From ad1fca9b927f469e2fecdfbfa4e3ad130afa66ab Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Thu, 7 Jan 2016 23:33:19 +0100 Subject: Implement legacy bcopy/bzero/bcmp/index/rindex as inline functions patch from OpenWrt. Reported-by: Leonid Lisovskiy --- include/string.h | 38 ++++++++++++++++++++++++++++++-------- 1 file changed, 30 insertions(+), 8 deletions(-) diff --git a/include/string.h b/include/string.h index 80585ef94..8315203a4 100644 --- a/include/string.h +++ b/include/string.h @@ -362,18 +362,40 @@ extern char *index (const char *__s, int __c) /* Find the last occurrence of C in S (same as strrchr). */ extern char *rindex (const char *__s, int __c) __THROW __attribute_pure__ __nonnull ((1)); -# else -# ifdef __UCLIBC_SUSV3_LEGACY_MACROS__ +# elif defined(__UCLIBC_SUSV3_LEGACY_MACROS__) && !defined(_STRINGS_H) /* bcopy/bzero/bcmp/index/rindex are marked LEGACY in SuSv3. * They are replaced as proposed by SuSv3. Don't sync this part * with glibc and keep it in sync with strings.h. */ -# define bcopy(src,dest,n) (memmove((dest), (src), (n)), (void) 0) -# define bzero(s,n) (memset((s), '\0', (n)), (void) 0) -# define bcmp(s1,s2,n) memcmp((s1), (s2), (size_t)(n)) -# define index(s,c) strchr((s), (c)) -# define rindex(s,c) strrchr((s), (c)) -# endif +/* Copy N bytes of SRC to DEST (like memmove, but args reversed). */ +static __inline__ void bcopy (__const void *__src, void *__dest, size_t __n) +{ + memmove(__dest, __src, __n); +} + +/* Set N bytes of S to 0. */ +static __inline__ void bzero (void *__s, size_t __n) +{ + memset(__s, 0, __n); +} + +/* Compare N bytes of S1 and S2 (same as memcmp). */ +static __inline__ int bcmp (__const void *__s1, __const void *__s2, size_t __n) +{ + return memcmp(__s1, __s2, __n); +} + +/* Find the first occurrence of C in S (same as strchr). */ +static __inline__ char *index (__const char *__s, int __c) +{ + return strchr(__s, __c); +} + +/* Find the last occurrence of C in S (same as strrchr). */ +static __inline__ char *rindex (__const char *__s, int __c) +{ + return strrchr(__s, __c); +} # endif /* Return the position of the first bit set in I, or 0 if none are set. -- cgit v1.2.3