LXR busybox/libbb/last_char

   1/* vi: set sw=4 ts=4: */
   2/*
   3 * busybox library eXtended function
   4 *
   5 * Copyright (C) 2001 Larry Doolittle, <ldoolitt@recycle.lbl.gov>
   6 *
   7 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
   8 */
   9#include "libbb.h"
  10
  11/* Find out if the last character of a string matches the one given.
  12 * Don't underrun the buffer if the string length is 0.
  13 */
  14char* FAST_FUNC last_char_is(const char *s, int c)
  15{
  16        if (s && *s) {
  17                size_t sz = strlen(s) - 1;
  18                s += sz;
  19                if ( (unsigned char)*s == c)
  20                        return (char*)s;
  21        }
  22        return NULL;
  23}
  24