string: Move string related utility functions to separate files

src/libstrongswan/utils/utils.c

@@ -215,80 +215,6 @@ void *utils_memrchr(const void *s, int c, size_t n)
 	return NULL;
 }
 
-/**
- * Described in header.
- */
-char* translate(char *str, const char *from, const char *to)
-{
-	char *pos = str;
-	if (strlen(from) != strlen(to))
-	{
-		return str;
-	}
-	while (pos && *pos)
-	{
-		char *match;
-		if ((match = strchr(from, *pos)) != NULL)
-		{
-			*pos = to[match - from];
-		}
-		pos++;
-	}
-	return str;
-}
-
-/**
- * Described in header.
- */
-char* strreplace(const char *str, const char *search, const char *replace)
-{
-	size_t len, slen, rlen, count = 0;
-	char *res, *pos, *found, *dst;
-
-	if (!str || !*str || !search || !*search || !replace)
-	{
-		return (char*)str;
-	}
-	slen = strlen(search);
-	rlen = strlen(replace);
-	if (slen != rlen)
-	{
-		for (pos = (char*)str; (pos = strstr(pos, search)); pos += slen)
-		{
-			found = pos;
-			count++;
-		}
-		if (!count)
-		{
-			return (char*)str;
-		}
-		len = (found - str) + strlen(found) + count * (rlen - slen);
-	}
-	else
-	{
-		len = strlen(str);
-	}
-	found = strstr(str, search);
-	if (!found)
-	{
-		return (char*)str;
-	}
-	dst = res = malloc(len + 1);
-	pos = (char*)str;
-	do
-	{
-		len = found - pos;
-		memcpy(dst, pos, len);
-		dst += len;
-		memcpy(dst, replace, rlen);
-		dst += rlen;
-		pos = found + slen;
-	}
-	while ((found = strstr(pos, search)));
-	strcpy(dst, pos);
-	return res;
-}
-
 #ifdef WIN32
 
 /**