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1 | /* |
2 | * frr_inet_ntop() unit test | |
3 | * Copyright (C) 2019 David Lamparter | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License as published by the Free | |
7 | * Software Foundation; either version 2 of the License, or (at your option) | |
8 | * any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | * more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License along | |
16 | * with this program; see the file COPYING; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
18 | */ | |
19 | ||
20 | #ifdef HAVE_CONFIG_H | |
21 | #include "config.h" | |
22 | #endif | |
23 | ||
24 | #include <assert.h> | |
25 | ||
26 | #include "tests/helpers/c/prng.h" | |
27 | ||
28 | /* NB: libfrr is NOT linked for this unit test! */ | |
29 | ||
30 | #define INET_NTOP_NO_OVERRIDE | |
31 | #include "lib/ntop.c" | |
32 | ||
33 | int main(int argc, char **argv) | |
34 | { | |
35 | size_t i, j, k, l; | |
36 | struct in_addr i4; | |
37 | struct in6_addr i6, i6check; | |
38 | char buf1[64], buf2[64]; | |
39 | const char *rv; | |
40 | struct prng *prng; | |
41 | ||
42 | prng = prng_new(0); | |
43 | /* IPv4 */ | |
44 | for (i = 0; i < 1000; i++) { | |
45 | i4.s_addr = prng_rand(prng); | |
46 | assert(frr_inet_ntop(AF_INET, &i4, buf1, sizeof(buf1))); | |
47 | assert(inet_ntop(AF_INET, &i4, buf2, sizeof(buf2))); | |
48 | assert(!strcmp(buf1, buf2)); | |
49 | } | |
50 | ||
51 | /* check size limit */ | |
52 | for (i = 0; i < sizeof(buf1); i++) { | |
53 | memset(buf2, 0xcc, sizeof(buf2)); | |
54 | rv = frr_inet_ntop(AF_INET, &i4, buf2, i); | |
55 | if (i < strlen(buf1) + 1) | |
56 | assert(!rv); | |
57 | else | |
58 | assert(rv && !strcmp(buf1, buf2)); | |
59 | } | |
60 | ||
61 | /* IPv6 */ | |
62 | for (i = 0; i < 10000; i++) { | |
63 | uint16_t *i6w = (uint16_t *)&i6; | |
64 | for (j = 0; j < 8; j++) | |
65 | i6w[j] = prng_rand(prng); | |
66 | ||
67 | /* clear some words */ | |
68 | l = prng_rand(prng) & 7; | |
69 | for (j = 0; j < l; j++) { | |
70 | uint32_t num = __builtin_ctz(prng_rand(prng)); | |
71 | uint32_t where = prng_rand(prng) & 7; | |
72 | ||
73 | for (k = where; k < where + num && k < 8; k++) | |
74 | i6w[k] = 0; | |
75 | } | |
76 | ||
77 | assert(frr_inet_ntop(AF_INET6, &i6, buf1, sizeof(buf1))); | |
78 | assert(inet_ntop(AF_INET6, &i6, buf2, sizeof(buf2))); | |
79 | if (strcmp(buf1, buf2)) | |
80 | printf("%-40s (FRR) != (SYS) %-40s\n", buf1, buf2); | |
81 | ||
82 | assert(inet_pton(AF_INET6, buf1, &i6check)); | |
83 | assert(!memcmp(&i6, &i6check, sizeof(i6))); | |
874035be DL |
84 | } |
85 | return 0; | |
86 | } |