strncasecmp() is present as strnicmp() but disabled. Make it available and define strcasecmp() also. There is a only a small performance penalty to having strcasecmp() call strncasecmp(), so do this instead of a standalone function, to save code space.
Update the prototype in arch-specific headers as needed to avoid warnings.
Signed-off-by: Simon Glass sjg@chromium.org --- Changes in v3: - Rename stricmp() to strcasecmp() to match Linux / POSIX - Bracket strcasecmp() declarations with __HAVE_ARCH_...
Changes in v2: - Add stricmp() patch again since it is used in this series
arch/m68k/include/asm/string.h | 2 +- arch/powerpc/include/asm/string.h | 2 +- arch/sparc/include/asm/string.h | 2 +- include/linux/string.h | 7 +++++-- lib/string.c | 16 ++++++++++++---- 5 files changed, 20 insertions(+), 9 deletions(-)
diff --git a/arch/m68k/include/asm/string.h b/arch/m68k/include/asm/string.h index e0773a8..ecf5e56 100644 --- a/arch/m68k/include/asm/string.h +++ b/arch/m68k/include/asm/string.h @@ -16,7 +16,7 @@ #endif
extern int strcasecmp(const char *, const char *); -extern int strncasecmp(const char *, const char *, int); +extern int strncasecmp(const char *, const char *, __kernel_size_t); extern char * strcpy(char *,const char *); extern char * strncpy(char *,const char *, __kernel_size_t); extern __kernel_size_t strlen(const char *); diff --git a/arch/powerpc/include/asm/string.h b/arch/powerpc/include/asm/string.h index d912a6b..036805e 100644 --- a/arch/powerpc/include/asm/string.h +++ b/arch/powerpc/include/asm/string.h @@ -14,7 +14,7 @@ #define __HAVE_ARCH_MEMCHR
extern int strcasecmp(const char *, const char *); -extern int strncasecmp(const char *, const char *, int); +extern int strncasecmp(const char *, const char *, __kernel_size_t); extern char * strcpy(char *,const char *); extern char * strncpy(char *,const char *, __kernel_size_t); extern __kernel_size_t strlen(const char *); diff --git a/arch/sparc/include/asm/string.h b/arch/sparc/include/asm/string.h index c6bbc20..af6faea 100644 --- a/arch/sparc/include/asm/string.h +++ b/arch/sparc/include/asm/string.h @@ -40,7 +40,7 @@ */
extern int strcasecmp(const char *, const char *); -extern int strncasecmp(const char *, const char *, int); +extern int strncasecmp(const char *, const char *, __kernel_size_t); extern char *strcpy(char *, const char *); extern char *strncpy(char *, const char *, __kernel_size_t); extern __kernel_size_t strlen(const char *); diff --git a/include/linux/string.h b/include/linux/string.h index 9a8cbc2..de83355 100644 --- a/include/linux/string.h +++ b/include/linux/string.h @@ -38,8 +38,11 @@ extern int strcmp(const char *,const char *); #ifndef __HAVE_ARCH_STRNCMP extern int strncmp(const char *,const char *,__kernel_size_t); #endif -#if 0 /* not used - was: #ifndef __HAVE_ARCH_STRNICMP */ -extern int strnicmp(const char *, const char *, __kernel_size_t); +#ifndef __HAVE_ARCH_STRCASECMP +int strcasecmp(const char *s1, const char *s2); +#endif +#ifndef __HAVE_ARCH_STRNCASECMP +extern int strncasecmp(const char *s1, const char *s2, __kernel_size_t len); #endif #ifndef __HAVE_ARCH_STRCHR extern char * strchr(const char *,int); diff --git a/lib/string.c b/lib/string.c index c3ad055..68f60be 100644 --- a/lib/string.c +++ b/lib/string.c @@ -21,14 +21,13 @@ #include <malloc.h>
-#if 0 /* not used - was: #ifndef __HAVE_ARCH_STRNICMP */ /** - * strnicmp - Case insensitive, length-limited string comparison + * strncasecmp - Case insensitive, length-limited string comparison * @s1: One string * @s2: The other string * @len: the maximum number of characters to compare */ -int strnicmp(const char *s1, const char *s2, size_t len) +int strncasecmp(const char *s1, const char *s2, size_t len) { /* Yes, Virginia, it had better be unsigned */ unsigned char c1, c2; @@ -52,7 +51,16 @@ int strnicmp(const char *s1, const char *s2, size_t len) } return (int)c1 - (int)c2; } -#endif + +/** + * strcasecmp - Case insensitive string comparison + * @s1: One string + * @s2: The other string + */ +int strcasecmp(const char *s1, const char *s2) +{ + return strncasecmp(s1, s2, -1U); +}
char * ___strtok;