stripped down version of string.c containing only the used functions

src/core/string.c

@@ -28,41 +28,6 @@
 
 /* *** FROM string.c *** */
 
-#ifndef __HAVE_ARCH_STRNICMP
-/**
- * strnicmp - 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)
-{
-	/* Yes, Virginia, it had better be unsigned */
-	unsigned char c1, c2;
-
-	c1 = 0;	c2 = 0;
-	if (len) {
-		do {
-			c1 = *s1; c2 = *s2;
-			s1++; s2++;
-			if (!c1)
-				break;
-			if (!c2)
-				break;
-			if (c1 == c2)
-				continue;
-			c1 = tolower(c1);
-			c2 = tolower(c2);
-			if (c1 != c2)
-				break;
-		} while (--len);
-	}
-	return (int)c1 - (int)c2;
-}
-#endif
-
-char * ___strtok;
-
 #ifndef __HAVE_ARCH_STRCPY
 /**
  * strcpy - Copy a %NUL terminated string
@@ -120,35 +85,6 @@ char * strcat(char * dest, const char * src)
 }
 #endif
 
-#ifndef __HAVE_ARCH_STRNCAT
-/**
- * strncat - Append a length-limited, %NUL-terminated string to another
- * @dest: The string to be appended to
- * @src: The string to append to it
- * @count: The maximum numbers of bytes to copy
- *
- * Note that in contrast to strncpy, strncat ensures the result is
- * terminated.
- */
-char * strncat(char *dest, const char *src, size_t count)
-{
-	char *tmp = dest;
-
-	if (count) {
-		while (*dest)
-			dest++;
-		while ((*dest++ = *src++)) {
-			if (--count == 0) {
-				*dest = '\0';
-				break;
-			}
-		}
-	}
-
-	return tmp;
-}
-#endif
-
 #ifndef __HAVE_ARCH_STRCMP
 /**
  * strcmp - Compare two strings
@@ -260,135 +196,6 @@ size_t strnlen(const char * s, size_t count)
 }
 #endif
 
-#ifndef __HAVE_ARCH_STRSPN
-/**
- * strspn - Calculate the length of the initial substring of @s which only
- * 	contain letters in @accept
- * @s: The string to be searched
- * @accept: The string to search for
- */
-size_t strspn(const char *s, const char *accept)
-{
-	const char *p;
-	const char *a;
-	size_t count = 0;
-
-	for (p = s; *p != '\0'; ++p) {
-		for (a = accept; *a != '\0'; ++a) {
-			if (*p == *a)
-				break;
-		}
-		if (*a == '\0')
-			return count;
-		++count;
-	}
-
-	return count;
-}
-#endif
-
-#ifndef __HAVE_ARCH_STRCSPN
-/**
- * strcspn - Calculate the length of the initial substring of @s which only
- * 	contain letters not in @reject
- * @s: The string to be searched
- * @accept: The string to search for
- */
-size_t strcspn(const char *s, const char *reject)
-{
-	const char *p;
-	const char *r;
-	size_t count = 0;
-
-	for (p = s; *p != '\0'; ++p) {
-		for (r = reject; *r != '\0'; ++r) {
-			if (*p == *r)
-				return count;
-		}
-		++count;
-	}
-
-	return count;
-}
-#endif
-
-#ifndef __HAVE_ARCH_STRPBRK
-/**
- * strpbrk - Find the first occurrence of a set of characters
- * @cs: The string to be searched
- * @ct: The characters to search for
- */
-char * strpbrk(const char * cs,const char * ct)
-{
-	const char *sc1,*sc2;
-
-	for( sc1 = cs; *sc1 != '\0'; ++sc1) {
-		for( sc2 = ct; *sc2 != '\0'; ++sc2) {
-			if (*sc1 == *sc2)
-				return (char *) sc1;
-		}
-	}
-	return NULL;
-}
-#endif
-
-#ifndef __HAVE_ARCH_STRTOK
-/**
- * strtok - Split a string into tokens
- * @s: The string to be searched
- * @ct: The characters to search for
- *
- * WARNING: strtok is deprecated, use strsep instead.
- */
-char * strtok(char * s,const char * ct)
-{
-	char *sbegin, *send;
-
-	sbegin  = s ? s : ___strtok;
-	if (!sbegin) {
-		return NULL;
-	}
-	sbegin += strspn(sbegin,ct);
-	if (*sbegin == '\0') {
-		___strtok = NULL;
-		return( NULL );
-	}
-	send = strpbrk( sbegin, ct);
-	if (send && *send != '\0')
-		*send++ = '\0';
-	___strtok = send;
-	return (sbegin);
-}
-#endif
-
-#ifndef __HAVE_ARCH_STRSEP
-/**
- * strsep - Split a string into tokens
- * @s: The string to be searched
- * @ct: The characters to search for
- *
- * strsep() updates @s to point after the token, ready for the next call.
- *
- * It returns empty tokens, too, behaving exactly like the libc function
- * of that name. In fact, it was stolen from glibc2 and de-fancy-fied.
- * Same semantics, slimmer shape. ;)
- */
-char * strsep(char **s, const char *ct)
-{
-	char *sbegin = *s, *end;
-
-	if (sbegin == NULL)
-		return NULL;
-
-	end = strpbrk(sbegin, ct);
-	if (end)
-		*end++ = '\0';
-	*s = end;
-
-	return sbegin;
-}
-#endif
-
 #ifndef __HAVE_ARCH_MEMSET
 /**
  * memset - Fill a region of memory with the given value
@@ -409,25 +216,6 @@ void * memset(void * s,int c,size_t count)
 }
 #endif
 
-#ifndef __HAVE_ARCH_BCOPY
-/**
- * bcopy - Copy one area of memory to another
- * @src: Where to copy from
- * @dest: Where to copy to
- * @count: The size of the area.
- *
- * Note that this is the same as memcpy(), with the arguments reversed.
- * memcpy() is the standard, bcopy() is a legacy BSD function.
- *
- * You should not use this function to access IO space, use memcpy_toio()
- * or memcpy_fromio() instead.
- */
-char * bcopy(const char * src, char * dest, int count)
-{
-	return memmove(dest,src,count);
-}
-#endif
-
 #ifndef __HAVE_ARCH_MEMCPY
 /**
  * memcpy - Copy one area of memory to another
@@ -498,30 +286,6 @@ int memcmp(const void * cs,const void * ct,size_t count)
 }
 #endif
 
-#ifndef __HAVE_ARCH_MEMSCAN
-/**
- * memscan - Find a character in an area of memory.
- * @addr: The memory area
- * @c: The byte to search for
- * @size: The size of the area.
- *
- * returns the address of the first occurrence of @c, or 1 byte past
- * the area if @c is not found
- */
-void * memscan(void * addr, int c, size_t size)
-{
-	unsigned char * p = (unsigned char *) addr;
-
-	while (size) {
-		if (*p == c)
-			return (void *) p;
-		p++;
-		size--;
-	}
-  	return (void *) p;
-}
-#endif
-
 #ifndef __HAVE_ARCH_STRSTR
 /**
  * strstr - Find the first substring in a %NUL terminated string
@@ -569,21 +333,6 @@ void * memchr(const void *s, int c, size_t n)
 
 #endif
 
-char * strndup(const char *s, size_t n)
-{
-	size_t len = strlen(s);
-	char *new;
-
-	if (len>n)
-		len = n;
-	new = malloc(len+1);
-	if (new) {
-		new[len] = '\0';
-		memcpy(new,s,len);
-	}
-	return new;
-}
-
 char * strdup(const char *s) {
 	return strndup(s, ~((size_t)0));
 }