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- /*
- This file is part of GNUnet
- Copyright (C) 2012 GNUnet e.V.
- GNUnet is free software: you can redistribute it and/or modify it
- under the terms of the GNU Affero General Public License as published
- by the Free Software Foundation, either version 3 of the License,
- or (at your option) any later version.
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Affero General Public License for more details.
- You should have received a copy of the GNU Affero General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
- SPDX-License-Identifier: AGPL3.0-or-later
- */
- /**
- * @file regex/test_regex_eval_api.c
- * @brief test for regex.c
- * @author Maximilian Szengel
- */
- #include <regex.h>
- #include <time.h>
- #include "platform.h"
- #include "regex_internal_lib.h"
- #include "regex_test_lib.h"
- #include "regex_internal.h"
- enum Match_Result
- {
- match = 0,
- nomatch = 1
- };
- struct Regex_String_Pair
- {
- char *regex;
- int string_count;
- char *strings[20];
- enum Match_Result expected_results[20];
- };
- /**
- * Random regex test. Generate a random regex as well as 'str_count' strings to
- * match it against. Will match using GNUNET_REGEX implementation and compare
- * the result to glibc regex result. 'rx_length' has to be smaller then
- * 'max_str_len'.
- *
- * @param rx_length length of the regular expression.
- * @param max_str_len maximum length of the random strings.
- * @param str_count number of generated random strings.
- *
- * @return 0 on success, non 0 otherwise.
- */
- int
- test_random (unsigned int rx_length, unsigned int max_str_len,
- unsigned int str_count)
- {
- unsigned int i;
- char *rand_rx;
- char *matching_str;
- int eval;
- int eval_check;
- int eval_canonical;
- int eval_canonical_check;
- struct REGEX_INTERNAL_Automaton *dfa;
- regex_t rx;
- regmatch_t matchptr[1];
- char error[200];
- int result;
- char *canonical_regex = NULL;
- /* At least one string is needed for matching */
- GNUNET_assert (str_count > 0);
- /* The string should be at least as long as the regex itself */
- GNUNET_assert (max_str_len >= rx_length);
- /* Generate random regex and a string that matches the regex */
- matching_str = GNUNET_malloc (rx_length + 1);
- rand_rx = REGEX_TEST_generate_random_regex (rx_length, matching_str);
- /* Now match */
- result = 0;
- for (i = 0; i < str_count; i++)
- {
- if (0 < i)
- {
- matching_str = REGEX_TEST_generate_random_string (max_str_len);
- }
- /* Match string using DFA */
- dfa = REGEX_INTERNAL_construct_dfa (rand_rx, strlen (rand_rx), 0);
- if (NULL == dfa)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Constructing DFA failed\n");
- goto error;
- }
- eval = REGEX_INTERNAL_eval (dfa, matching_str);
- /* save the canonical regex for later comparison */
- canonical_regex = GNUNET_strdup (REGEX_INTERNAL_get_canonical_regex (dfa));
- REGEX_INTERNAL_automaton_destroy (dfa);
- /* Match string using glibc regex */
- if (0 != regcomp (&rx, rand_rx, REG_EXTENDED))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Could not compile regex using regcomp: %s\n", rand_rx);
- goto error;
- }
- eval_check = regexec (&rx, matching_str, 1, matchptr, 0);
- regfree (&rx);
- /* We only want to match the whole string, because that's what our DFA does,
- * too. */
- if ((eval_check == 0) &&
- ((matchptr[0].rm_so != 0) || (matchptr[0].rm_eo != strlen (
- matching_str)) ))
- eval_check = 1;
- /* Match canonical regex */
- dfa =
- REGEX_INTERNAL_construct_dfa (canonical_regex, strlen (canonical_regex),
- 0);
- if (NULL == dfa)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Constructing DFA failed\n");
- goto error;
- }
- eval_canonical = REGEX_INTERNAL_eval (dfa, matching_str);
- REGEX_INTERNAL_automaton_destroy (dfa);
- if (0 != regcomp (&rx, canonical_regex, REG_EXTENDED))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Could not compile regex using regcomp: %s\n",
- canonical_regex);
- goto error;
- }
- eval_canonical_check = regexec (&rx, matching_str, 1, matchptr, 0);
- regfree (&rx);
- /* We only want to match the whole string, because that's what our DFA does,
- * too. */
- if ((eval_canonical_check == 0) &&
- ((matchptr[0].rm_so != 0) || (matchptr[0].rm_eo != strlen (
- matching_str)) ))
- eval_canonical_check = 1;
- /* compare results */
- if ((eval_check != eval) || (eval_canonical != eval_canonical_check) )
- {
- regerror (eval_check, &rx, error, sizeof error);
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Unexpected result:\nregex: %s\ncanonical_regex: %s\n\
- string: %s\ngnunet regex: %i\nglibc regex: %i\n\
- canonical regex: %i\ncanonical regex glibc: %i\n\
- glibc error: %s\n\n", rand_rx, canonical_regex, matching_str,
- eval, eval_check, eval_canonical, eval_canonical_check,
- error);
- result += 1;
- }
- GNUNET_free (canonical_regex);
- GNUNET_free (matching_str);
- canonical_regex = NULL;
- matching_str = NULL;
- }
- GNUNET_free (rand_rx);
- return result;
- error:
- GNUNET_free (matching_str);
- GNUNET_free (rand_rx);
- GNUNET_free (canonical_regex);
- return -1;
- }
- /**
- * Automaton test that compares the result of matching regular expression 'rx'
- * with the strings and expected results in 'rxstr' with the result of matching
- * the same strings with glibc regex.
- *
- * @param a automaton.
- * @param rx compiled glibc regex.
- * @param rxstr regular expression and strings with expected results to
- * match against.
- *
- * @return 0 on successful, non 0 otherwise
- */
- int
- test_automaton (struct REGEX_INTERNAL_Automaton *a, regex_t *rx,
- struct Regex_String_Pair *rxstr)
- {
- int result;
- int eval;
- int eval_check;
- char error[200];
- regmatch_t matchptr[1];
- int i;
- if (NULL == a)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Automaton was NULL\n");
- return 1;
- }
- result = 0;
- for (i = 0; i < rxstr->string_count; i++)
- {
- eval = REGEX_INTERNAL_eval (a, rxstr->strings[i]);
- eval_check = regexec (rx, rxstr->strings[i], 1, matchptr, 0);
- /* We only want to match the whole string, because that's what our DFA does,
- * too. */
- if ((eval_check == 0) &&
- ((matchptr[0].rm_so != 0) ||
- (matchptr[0].rm_eo != strlen (rxstr->strings[i])) ))
- eval_check = 1;
- if (((rxstr->expected_results[i] == match) && ((0 != eval) || (0 !=
- eval_check) ))
- || ((rxstr->expected_results[i] == nomatch) &&
- ((0 == eval) || (0 == eval_check) )))
- {
- result = 1;
- regerror (eval_check, rx, error, sizeof error);
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Unexpected result:\nregex: %s\ncanonical_regex: %s\n"
- "string: %s\nexpected result: %i\n"
- "gnunet regex: %i\nglibc regex: %i\nglibc error: %s\n"
- "rm_so: %i\nrm_eo: %i\n\n", rxstr->regex,
- REGEX_INTERNAL_get_canonical_regex (a), rxstr->strings[i],
- rxstr->expected_results[i], eval, eval_check, error,
- matchptr[0].rm_so, matchptr[0].rm_eo);
- }
- }
- return result;
- }
- int
- main (int argc, char *argv[])
- {
- GNUNET_log_setup ("test-regex", "WARNING", NULL);
- struct REGEX_INTERNAL_Automaton *a;
- regex_t rx;
- int i;
- int check_nfa;
- int check_dfa;
- int check_rand;
- char *check_proof;
- struct Regex_String_Pair rxstr[19] = {
- { "ab?(abcd)?", 5,
- { "ababcd", "abab", "aabcd", "a", "abb" },
- { match, nomatch, match, match, nomatch } },
- { "ab(c|d)+c*(a(b|c)d)+", 5,
- { "abcdcdcdcdddddabd", "abcd",
- "abcddddddccccccccccccccccccccccccabdacdabd",
- "abccccca", "abcdcdcdccdabdabd" },
- { match, nomatch, match, nomatch, match } },
- { "ab+c*(a(bx|c)d)+", 5,
- { "abcdcdcdcdddddabd", "abcd",
- "abcddddddccccccccccccccccccccccccabdacdabd",
- "abccccca", "abcdcdcdccdabdabd" },
- { nomatch, nomatch, nomatch, nomatch, nomatch } },
- { "a+X*y+c|p|R|Z*K*y*R+w|Y*6+n+h*k*w+V*F|W*B*e*", 1,
- { "kaXycQepRZKyRwY6nhkwVFWBegNVtLPj39XhJJ6bEifRSZRYZg" },
- { nomatch } },
- {
- "k|a+X*y+c|Q*e|p|R|Z*K*y*R+w|Y*6+n+h*k*w+V*F|W*B*e*g|N+V|t+L|P*j*3*9+X*h*J|J*6|b|E*i*f*R+S|Z|R|Y*Z|g*",
- 1,
- { "kaXycQepRZKyRwY6nhkwVFWBegNVtLPj39XhJJ6bEifRSZRYZg" },
- { nomatch }
- },
- {
- "F?W+m+2*6*c*s|P?U?a|B|y*i+t+A|V|6*C*7*e?Z*n*i|J?5+g?W*V?7*j?p?1|r?B?C+E+3+6*i+W*P?K?0|D+7?y*m+3?g?K?",
- 1,
- { "osfjsodfonONONOnosndfsdnfsd" },
- { nomatch }
- },
- {
- "V|M*o?x*p*d+h+b|E*m?h?Y*E*O?W*W*P+o?Z+H*M|I*q+C*a+5?5*9|b?z|G*y*k?R|p+u|8*h?B+l*H|e|L*O|1|F?v*0?5|C+",
- 1,
- { "VMoxpdhbEmhYEOWWPoZHMIqCa559bzGykRpu8hBlHeLO1Fv05C" },
- { nomatch }
- },
- { "(bla)*", 8,
- { "", "bla", "blabla", "bl", "la", "b", "l", "a" },
- { match, match, match, nomatch, nomatch, nomatch, nomatch, nomatch } },
- { "ab(c|d)+c*(a(b|c)+d)+(bla)(bla)*", 8,
- { "ab", "abcabdbla", "abdcccccccccccabcbccdblablabla", "bl", "la", "b",
- "l",
- "a" },
- { nomatch, match, match, nomatch, nomatch, nomatch, nomatch, nomatch } },
- { "a|aa*a", 6,
- { "", "a", "aa", "aaa", "aaaa", "aaaaa" },
- { nomatch, match, match, match, match, match } },
- { "ab(c|d)+c*(a(b|c)+d)+(bla)+", 1,
- { "abcabdblaacdbla" },
- { nomatch } },
- { "(ac|b)+", 8,
- { "b", "bb", "ac", "", "acb", "bacbacac", "acacac", "abc" },
- { match, match, match, nomatch, match, match, match, nomatch } },
- { "(ab|c)+", 7,
- { "", "ab", "c", "abc", "ababcc", "acc", "abac" },
- { nomatch, match, match, match, match, nomatch, nomatch } },
- { "((j|2j)K|(j|2j)AK|(j|2j)(D|e|(j|2j)A(D|e))D*K)", 1,
- { "", "2j2jADK", "j2jADK" },
- { nomatch, match, match } },
- { "((j|2j)K|(j|2j)(D|e|((j|2j)j|(j|2j)2j)A(D|e))D*K|(j|2j)AK)", 2,
- { "", "2j2jjADK", "j2jADK" },
- { nomatch, match, match } },
- { "ab(c|d)+c*(a(b|c)d)+", 1,
- { "abacd" },
- { nomatch } },
- { "d|5kl", 1,
- { "d5kl" },
- { nomatch } },
- { "a()b", 1,
- { "ab" },
- { match } },
- {
- "GNVPN-0001-PAD(001110101001001010(0|1)*|001110101001001010000(0|1)*|001110101001001010001(0|1)*|001110101001001010010(0|1)*|001110101001001010011(0|1)*|001110101001001010100(0|1)*|001110101001001010101(0|1)*|001110101001001010110(0|1)*|001110101001001010111(0|1)*|0011101010110110(0|1)*|001110101011011000000(0|1)*|001110101011011000001(0|1)*|001110101011011000010(0|1)*|001110101011011000011(0|1)*|001110101011011000100(0|1)*|001110101011011000101(0|1)*|001110101011011000110(0|1)*|001110101011011000111(0|1)*|001110101011011001000(0|1)*|001110101011011001001(0|1)*|001110101011011001010(0|1)*|001110101011011001011(0|1)*|001110101011011001100(0|1)*|001110101011011001101(0|1)*|001110101011011001110(0|1)*|001110101011011001111(0|1)*|001110101011011010000(0|1)*|001110101011011010001(0|1)*|001110101011011010010(0|1)*|001110101011011010011(0|1)*|001110101011011010100(0|1)*|001110101011011010101(0|1)*|001110101011011010110(0|1)*|001110101011011010111(0|1)*|001110101011011011000(0|1)*|001110101011011011001(0|1)*|001110101011011011010(0|1)*|001110101011011011011(0|1)*|001110101011011011100(0|1)*|001110101011011011101(0|1)*|001110101011011011110(0|1)*|001110101011011011111(0|1)*|0011101110111101(0|1)*|001110111011110100000(0|1)*|001110111011110100001(0|1)*|001110111011110100010(0|1)*|001110111011110100011(0|1)*|001110111011110100100(0|1)*|001110111011110100101(0|1)*|001110111011110100110(0|1)*|001110111011110100111(0|1)*|001110111011110101000(0|1)*|001110111011110101001(0|1)*|001110111011110101010(0|1)*|001110111011110101011(0|1)*|001110111011110101100(0|1)*|001110111011110101101(0|1)*|001110111011110101110(0|1)*|001110111011110101111(0|1)*|001110111011110110000(0|1)*|001110111011110110001(0|1)*|001110111011110110010(0|1)*|001110111011110110011(0|1)*|001110111011110110100(0|1)*|001110111011110110101(0|1)*|001110111011110110110(0|1)*|001110111011110110111(0|1)*|001110111011110111000(0|1)*|001110111011110111001(0|1)*|001110111011110111010(0|1)*|001110111011110111011(0|1)*|001110111011110111100(0|1)*|001110111011110111101(0|1)*|001110111011110111110(0|1)*|0111010001010110(0|1)*|011101000101011000000(0|1)*|011101000101011000001(0|1)*|011101000101011000010(0|1)*|011101000101011000011(0|1)*|011101000101011000100(0|1)*|011101000101011000101(0|1)*|011101000101011000110(0|1)*|011101000101011000111(0|1)*|011101000101011001000(0|1)*|011101000101011001001(0|1)*|011101000101011001010(0|1)*|011101000101011001011(0|1)*|011101000101011001100(0|1)*|011101000101011001101(0|1)*|011101000101011001110(0|1)*|011101000101011001111(0|1)*|011101000101011010000(0|1)*|011101000101011010001(0|1)*|011101000101011010010(0|1)*|011101000101011010011(0|1)*|011101000101011010100(0|1)*|011101000101011010101(0|1)*|011101000101011010110(0|1)*|011101000101011010111(0|1)*|011101000101011011000(0|1)*|011101000101011011001(0|1)*|011101000101011011010(0|1)*|011101000101011011011(0|1)*|011101000101011011100(0|1)*|011101000101011011101(0|1)*|011101000101011011110(0|1)*|011101000101011011111(0|1)*|0111010001010111(0|1)*|011101000101011100000(0|1)*|011101000101011100001(0|1)*|011101000101011100010(0|1)*|011101000101011100011(0|1)*|011101000101011100100(0|1)*|011101000101011100101(0|1)*|011101000101011100110(0|1)*|011101000101011100111(0|1)*|011101000101011101000(0|1)*|011101000101011101001(0|1)*|011101000101011101010(0|1)*|011101000101011101011(0|1)*|011101000101011101100(0|1)*|011101000101011101101(0|1)*|011101000101011101110(0|1)*|011101000101011101111(0|1)*|011101000101011110000(0|1)*|011101000101011110001(0|1)*|011101000101011110010(0|1)*|011101000101011110011(0|1)*|011101000101011110100(0|1)*|011101000101011110101(0|1)*|011101000101011110110(0|1)*|011101000101011110111(0|1)*|011101000101011111000(0|1)*|011101000101011111001(0|1)*|011101000101011111010(0|1)*|011101000101011111011(0|1)*|011101000101011111100(0|1)*|011101000101011111101(0|1)*|011101000101011111110(0|1)*|011101000101011111111(0|1)*|0111010001011000(0|1)*|011101000101100000000(0|1)*|011101000101100000001(0|1)*|011101000101100000010(0|1)*|011101000101100000011(0|1)*|011101000101100000100(0|1)*|011101000101100000101(0|1)*|011101000101100000110(0|1)*|011101000101100000111(0|1)*|011101000101100001000(0|1)*|011101000101100001001(0|1)*|011101000101100001010(0|1)*|011101000101100001011(0|1)*|011101000101100001100(0|1)*|011101000101100001101(0|1)*|011101000101100001110(0|1)*|011101000101100001111(0|1)*|011101000101100010000(0|1)*|011101000101100010001(0|1)*|011101000101100010010(0|1)*|011101000101100010011(0|1)*|011101000101100010100(0|1)*|011101000101100010101(0|1)*|011101000101100010110(0|1)*|011101000101100010111(0|1)*|011101000101100011000(0|1)*|011101000101100011001(0|1)*|011101000101100011010(0|1)*|011101000101100011011(0|1)*|011101000101100011100(0|1)*|011101000101100011101(0|1)*|011101000101100011110(0|1)*|011101000101100011111(0|1)*|01110100010110010(0|1)*|011101000101100100000(0|1)*|011101000101100100001(0|1)*|011101000101100100010(0|1)*|011101000101100100011(0|1)*|011101000101100100100(0|1)*|0111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1101010010101100(0|1)*|110111101010010101101(0|1)*|110111101010010101110(0|1)*|110111101010010101111(0|1)*)",
- 2,
- { "GNVPN-0001-PAD1101111010100101011101010101010101",
- "GNVPN-0001-PAD11001010100111000101101010101" },
- { match, match }
- }
- };
- check_nfa = 0;
- check_dfa = 0;
- check_rand = 0;
- for (i = 0; i < 19; i++)
- {
- if (0 != regcomp (&rx, rxstr[i].regex, REG_EXTENDED))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Could not compile regex using regcomp()\n");
- return 1;
- }
- /* NFA test */
- a = REGEX_INTERNAL_construct_nfa (rxstr[i].regex, strlen (rxstr[i].regex));
- check_nfa += test_automaton (a, &rx, &rxstr[i]);
- REGEX_INTERNAL_automaton_destroy (a);
- /* DFA test */
- a = REGEX_INTERNAL_construct_dfa (rxstr[i].regex, strlen (rxstr[i].regex),
- 0);
- check_dfa += test_automaton (a, &rx, &rxstr[i]);
- check_proof = GNUNET_strdup (REGEX_INTERNAL_get_canonical_regex (a));
- REGEX_INTERNAL_automaton_destroy (a);
- a = REGEX_INTERNAL_construct_dfa (check_proof, strlen (check_proof), 0);
- check_dfa += test_automaton (a, &rx, &rxstr[i]);
- REGEX_INTERNAL_automaton_destroy (a);
- if (0 != check_dfa)
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "check_proof: %s\n", check_proof);
- GNUNET_free (check_proof);
- regfree (&rx);
- }
- /* Random tests */
- srand (time (NULL));
- for (i = 0; i < 20; i++)
- check_rand += test_random (50, 60, 10);
- return check_nfa + check_dfa + check_rand;
- }
|