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109 lines
2.6 KiB
C
109 lines
2.6 KiB
C
/* Demangler fuzzer.
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Copyright (C) 2014-2019 Free Software Foundation, Inc.
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This file is part of GNU libiberty.
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This program 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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This program 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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <time.h>
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#include "demangle.h"
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#define MAXLEN 253
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#define ALPMIN 33
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#define ALPMAX 127
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static char *program_name;
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#define DEFAULT_MAXCOUNT 7500000
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static void
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print_usage (FILE *fp, int exit_value)
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{
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fprintf (fp, "Usage: %s [OPTION]...\n", program_name);
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fprintf (fp, "Options:\n");
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fprintf (fp, " -h Display this message.\n");
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fprintf (fp, " -s SEED Select the random seed to be used.\n");
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fprintf (fp, " The default is to base one on the");
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fprintf (fp, " current time.\n");
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fprintf (fp, " -m MAXCOUNT Exit after MAXCOUNT symbols.\n");
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fprintf (fp, " The default is %d.", DEFAULT_MAXCOUNT);
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fprintf (fp, " Set to `-1' for no limit.\n");
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exit (exit_value);
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}
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int
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main (int argc, char *argv[])
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{
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char symbol[2 + MAXLEN + 1] = "_Z";
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int seed = -1, seed_set = 0;
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int count = 0, maxcount = DEFAULT_MAXCOUNT;
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int optchr;
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program_name = argv[0];
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do
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{
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optchr = getopt (argc, argv, "hs:m:t:");
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switch (optchr)
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{
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case '?': /* Unrecognized option. */
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print_usage (stderr, 1);
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break;
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case 'h':
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print_usage (stdout, 0);
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break;
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case 's':
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seed = atoi (optarg);
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seed_set = 1;
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break;
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case 'm':
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maxcount = atoi (optarg);
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break;
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}
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}
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while (optchr != -1);
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if (!seed_set)
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seed = time (NULL);
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srand (seed);
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printf ("%s: seed = %d\n", program_name, seed);
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while (maxcount < 0 || count < maxcount)
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{
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char *buffer = symbol + 2;
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int length, i;
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length = rand () % MAXLEN;
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for (i = 0; i < length; i++)
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*buffer++ = (rand () % (ALPMAX - ALPMIN)) + ALPMIN;
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*buffer++ = '\0';
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cplus_demangle (symbol, DMGL_AUTO | DMGL_ANSI | DMGL_PARAMS);
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count++;
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}
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printf ("%s: successfully demangled %d symbols\n", program_name, count);
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exit (0);
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}
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