text: /* vi: set sw=4 ts=4: */
  /*
   * Mini basename implementation for busybox
   *
   * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
   *
   * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
   */
  
  /* Mar 16, 2003      Manuel Novoa III   (mjn3@codepoet.org)
   *
   * Changes:
   * 1) Now checks for too many args.  Need at least one and at most two.
   * 2) Don't check for options, as per SUSv3.
   * 3) Save some space by using strcmp().  Calling strncmp() here was silly.
   */
  
  /* BB_AUDIT SUSv3 compliant */
  /* http://www.opengroup.org/onlinepubs/007904975/utilities/basename.html */
  
  //kbuild:lib-$(CONFIG_BASENAME) += basename.o
  
  //config:config BASENAME
  //config:	bool "basename"
  //config:	default y
  //config:	help
  //config:	  basename is used to strip the directory and suffix from filenames,
  //config:	  leaving just the filename itself. Enable this option if you wish
  //config:	  to enable the 'basename' utility.
  
  #include "libbb.h"
  
  /* This is a NOFORK applet. Be very careful! */
  
  int basename_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  int basename_main(int argc, char **argv)
  {
  	size_t m, n;
  	char *s;
  
  	if ((unsigned)(argc-2) >= 2) {
  		bb_show_usage();
  	}
  
  	/* It should strip slash: /abc/def/ -> def */
  	s = bb_get_last_path_component_strip(*++argv);
  
  	m = strlen(s);
  	if (*++argv) {
  		n = strlen(*argv);
  		if ((m > n) && (strcmp(s+m-n, *argv) == 0)) {
  			m -= n;
  			/*s[m] = '\0'; - redundant */
  		}
  	}
  
  	/* puts(s) will do, but we can do without stdio this way: */
  	s[m++] = '\n';
  	/* NB: != is correct here: */
  	return full_write(STDOUT_FILENO, s, m) != (ssize_t)m;
  }
  