hush/libbb/last_char_is.c

27 lines
642 B
C

/* vi: set sw=4 ts=4: */
/*
* busybox library eXtended function
*
* Copyright (C) 2001 Larry Doolittle, <ldoolitt@recycle.lbl.gov>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#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(const char *s, int c)
{
char *sret = (char *)s;
if (sret) {
sret = strrchr(sret, c);
if(sret != NULL && *(sret+1) != 0)
sret = NULL;
}
return sret;
}