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
  10#include "libbb.h"
  11
  12/* Find out if the last character of a string matches the one given.
  13 * Don't underrun the buffer if the string length is 0.
  14 */
  15char* FAST_FUNC last_char_is(const char *s, int c)
  16{
  17        if (s && *s) {
  18                size_t sz = strlen(s) - 1;
  19                s += sz;
  20                if ( (unsigned char)*s == c)
  21                        return (char*)s;
  22        }
  23        return NULL;
  24}
  25