80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
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/* regexp.c -- The regexp command. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2005,2007 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/dl.h>
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#include <grub/misc.h>
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#include <grub/mm.h>
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#include <grub/command.h>
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#include <grub/regex.h>
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static grub_err_t
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grub_cmd_regexp (grub_command_t cmd __attribute__ ((unused)),
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int argc, char **args)
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{
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int argn = 0;
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int matches = 0;
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regex_t regex;
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int ret;
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grub_size_t s;
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char *comperr;
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grub_err_t err;
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if (argc != 2)
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return grub_error (GRUB_ERR_BAD_ARGUMENT, "2 arguments expected");
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ret = regcomp (®ex, args[0], RE_SYNTAX_GNU_AWK);
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if (ret)
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goto fail;
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ret = regexec (®ex, args[1], 0, 0, 0);
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if (!ret)
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{
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regfree (®ex);
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return GRUB_ERR_NONE;
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}
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fail:
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s = regerror (ret, ®ex, 0, 0);
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comperr = grub_malloc (s);
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if (!comperr)
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{
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regfree (®ex);
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return grub_errno;
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}
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regerror (ret, ®ex, comperr, s);
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err = grub_error (GRUB_ERR_TEST_FAILURE, "%s", comperr);
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regfree (®ex);
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grub_free (comperr);
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return err;
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}
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static grub_command_t cmd;
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GRUB_MOD_INIT(regexp)
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{
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cmd = grub_register_command ("regexp", grub_cmd_regexp,
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"REGEXP STRING",
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"Test if REGEXP matches STRING.");
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}
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GRUB_MOD_FINI(regexp)
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{
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grub_unregister_command (cmd);
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}
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