diff options
Diffstat (limited to 'resolv/tst-res_hnok.c')
| -rw-r--r-- | resolv/tst-res_hnok.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/resolv/tst-res_hnok.c b/resolv/tst-res_hnok.c new file mode 100644 index 0000000000..9c92303821 --- /dev/null +++ b/resolv/tst-res_hnok.c @@ -0,0 +1,153 @@ +/* Tests for res_hnok and related functions. + Copyright (C) 2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <array_length.h> +#include <resolv.h> +#include <string.h> +#include <support/check.h> +#include <support/test-driver.h> + +/* Bits which indicate which functions are supposed to report + success. */ +enum + { + hnok = 1, + dnok = 2, + mailok = 4, + ownok = 8, + allnomailok = hnok | dnok | ownok, + allok = hnok | dnok | mailok | ownok + }; + +/* A string of 60 characters. */ +#define STRING60 "zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz" + +/* A string of 63 characters (maximum label length). */ +#define STRING63 STRING60 "zzz" + +/* Combines a test name with the expected results. */ +struct test_case +{ + const char *dn; + unsigned int result; /* Combination of the *ok flags. */ +}; + +static const struct test_case tests[] = + { + { "", allok }, + { ".", allok }, + { "www", allnomailok }, + { "example", allnomailok }, + { "example.com", allok }, + { "www.example.com", allok }, + { "www.example.com.", allok }, + { "*.example.com", dnok | mailok | ownok }, + { "-v", dnok }, + { "-v.example.com", mailok | dnok }, + { "**.example.com", dnok | mailok }, + { STRING63, allnomailok }, + { STRING63 ".example.com", allok }, + { STRING63 "." STRING63 "." STRING63 "." STRING60 "z", allok }, + { "hostmaster@mail.example.com", dnok | mailok }, + { "with whitespace", 0 }, + { "with\twhitespace", 0 }, + { "with\nwhitespace", 0 }, + { "with.whitespace ", 0 }, + { "with.whitespace\t", 0 }, + { "with.whitespace\n", 0 }, + { "with\\ whitespace", 0 }, + { "with\\\twhitespace", 0 }, + { "with\\\nwhitespace", 0 }, + { "with.whitespace\\ ", 0 }, + { "with.whitespace\\\t", 0 }, + { "with.whitespace\\\n", 0 }, + }; + +/* Run test case *TEST with FUNC (named FUNCNAME) and report an error + if the result does not match the result flag at BIT. */ +static void +one_test (const struct test_case *test, const char *funcname, + int (*func) (const char *), unsigned int bit) +{ + int expected = (test->result & bit) != 0; + int actual = func (test->dn); + if (actual != expected) + { + support_record_failure (); + printf ("error: %s (\"%s\"): expected=%d, actual=%d\n", + funcname, test->dn, expected, actual); + } +} + +/* Run 255 tests using all the bytes from 1 to 255, surround the byte + with the strings PREFIX and SUFFIX, and check that FUNC (named + FUNCNAME) accepts only those bytes listed in ACCEPTED. */ +static void +one_char (const char *prefix, const char *accepted, const char *suffix, + const char *funcname, int (*func) (const char *)) +{ + for (int ch = 1; ch <= 255; ++ch) + { + char dn[1024]; + snprintf (dn, sizeof (dn), "%s%c%s", prefix, ch, suffix); + int expected = strchr (accepted, ch) != NULL; + int actual = func (dn); + if (actual != expected) + { + support_record_failure (); + printf ("error: %s (\"%s\"): expected=%d, actual=%d\n", + funcname, dn, expected, actual); + } + } +} + +static int +do_test (void) +{ + for (const struct test_case *test = tests; test < array_end (tests); ++test) + { + if (test_verbose) + printf ("info: testing domain name [[[%s]]] (0x%x)\n", + test->dn, test->result); + one_test (test, "res_hnok", res_hnok, hnok); + one_test (test, "res_dnok", res_dnok, dnok); + one_test (test, "res_mailok", res_mailok, mailok); + one_test (test, "res_ownok", res_ownok, ownok); + } + + one_char + ("", "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789.", + "", "res_hnok", res_hnok); + one_char + ("middle", + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789.-_", + "suffix", "res_hnok", res_hnok); + one_char + ("middle", + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789.-_" + "!\"#$%&'()*+,/:;<=>?@[\\]^`{|}~", + "suffix.example", "res_mailok", res_mailok); + one_char + ("mailbox.middle", + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789.-_", + "suffix.example", "res_mailok", res_mailok); + + return 0; +} + +#include <support/test-driver.c> |