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/* $OpenBSD: basename.c,v 1.14 2016/10/28 07:22:59 schwarze Exp $ */ |
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/* $NetBSD: basename.c,v 1.9 1995/09/02 05:29:46 jtc Exp $ */ |
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/*- |
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* Copyright (c) 1991, 1993, 1994 |
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* The Regents of the University of California. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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#include <err.h> |
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#include <libgen.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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static void __dead usage(void); |
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int |
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main(int argc, char *argv[]) |
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{ |
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int ch; |
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char *p; |
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✗✓ |
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if (pledge("stdio flock rpath cpath wpath", NULL) == -1) |
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err(1, "pledge"); |
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✗✓ |
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while ((ch = getopt(argc, argv, "")) != -1) { |
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switch (ch) { |
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default: |
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usage(); |
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} |
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} |
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argc -= optind; |
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argv += optind; |
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✗✓ |
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if (argc != 1 && argc != 2) |
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usage(); |
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✓✓ |
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if (**argv == '\0') { |
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(void)puts(""); |
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return 0; |
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} |
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p = basename(*argv); |
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✗✓ |
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if (p == NULL) |
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err(1, "%s", *argv); |
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/* |
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* If the suffix operand is present, is not identical to the |
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* characters remaining in string, and is identical to a suffix |
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* of the characters remaining in string, the suffix suffix |
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* shall be removed from string. |
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*/ |
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✓✓ |
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if (*++argv) { |
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size_t suffixlen, stringlen, off; |
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suffixlen = strlen(*argv); |
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stringlen = strlen(p); |
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✓✓ |
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if (suffixlen < stringlen) { |
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off = stringlen - suffixlen; |
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✓✓ |
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if (!strcmp(p + off, *argv)) |
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p[off] = '\0'; |
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} |
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} |
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(void)puts(p); |
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return 0; |
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} |
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extern char *__progname; |
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static void __dead |
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usage(void) |
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{ |
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(void)fprintf(stderr, "usage: %s string [suffix]\n", __progname); |
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exit(1); |
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} |