*
*/
+#include <string.h>
#include "libbb.h"
/* Find out if the last character of a string matches the one given Don't
* underrun the buffer if the string length is 0. Also avoids a possible
* space-hogging inline of strlen() per usage.
*/
-char * last_char_is(char *s, int c)
+char * last_char_is(const char *s, int c)
{
- char *sret = s+strlen(s)-1;
+ char *sret;
+ if (!s)
+ return NULL;
+ sret = (char *)s+strlen(s)-1;
if (sret>=s && *sret == c) {
return sret;
} else {