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authorSimon Glass <sjg@chromium.org>2012-12-05 14:46:35 +0000
committerTom Rini <trini@ti.com>2012-12-11 13:17:34 -0700
commitb1f17bf5ff63a7e22e0299dd576c3b6cd38ae665 (patch)
treef96ee90f06bef6e031832cded766631486a88e76
parentec7381fbf6f77cc465eb06a1ab6f8a99df1e487c (diff)
downloadu-boot-linaro-stable-b1f17bf5ff63a7e22e0299dd576c3b6cd38ae665.tar.gz
Add strcasecmp() and strncasecmp()
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>
-rw-r--r--arch/m68k/include/asm/string.h2
-rw-r--r--arch/powerpc/include/asm/string.h2
-rw-r--r--arch/sparc/include/asm/string.h2
-rw-r--r--include/linux/string.h7
-rw-r--r--lib/string.c16
5 files changed, 20 insertions, 9 deletions
diff --git a/arch/m68k/include/asm/string.h b/arch/m68k/include/asm/string.h
index e0773a882..ecf5e56e1 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 d912a6b5f..036805ede 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 c6bbc203d..af6faea23 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 9a8cbc24c..de833554a 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 c3ad055e2..68f60bea1 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;