Lines Matching defs:*
0 /* $Id$ */
4 This file is part of avahi.
6 avahi is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as
8 published by the Free Software Foundation; either version 2.1 of the
9 License, or (at your option) any later version.
11 avahi is distributed in the hope that it will be useful, but WITHOUT
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
14 Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with avahi; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19 USA.
22 /* Regression test for Avahi bug #84.
23 * This program tests whether the avahi_dns_packet_consume_name function
24 * returns (rather than spinning forever). For a function as simple as
25 * avahi_dns_packet_consume_name, we assume that 1 second of CPU time ��� forever
28 #ifdef HAVE_CONFIG_H
29 # include <config.h>
30 #endif
32 #include <string.h>
33 #include <stdint.h>
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <signal.h>
37 #include <sys/time.h>
39 #include "dns.h"
41 #define MAX_CPU_SECONDS 1
43 #define TEST_NAME "dns-spin-test"
45 static void fail(const char *fmt, ...) __attribute__((format(printf, 1, 2), noreturn));
46 static void unresolved(const char *fmt, ...) __attribute__((format(printf, 1, 2), noreturn));
47 static void stdlib_fail(const char *msg) __attribute__((noreturn));
48 static void handle(int sig) __attribute__((noreturn));
50 void stdlib_fail(const char *msg) {
51 perror(msg);
53 printf("UNRESOLVED: " TEST_NAME " (stdlib failure)\n");
55 exit(77);
58 void unresolved(const char *fmt, ...) {
59 va_list ap;
61 printf("UNRESOLVED: " TEST_NAME ": ");
62 va_start(ap, fmt);
63 vprintf(fmt, ap);
64 va_end(ap);
65 printf("\n");
67 exit(77);
70 void fail(const char *fmt, ...) {
71 va_list ap;
73 va_start(ap, fmt);
74 vprintf(fmt, ap);
75 va_end(ap);
76 printf("\n");
78 exit(EXIT_FAILURE);
81 void handle(AVAHI_GCC_UNUSED int sig) {
82 fail("Interrupted after %d second of CPU time", MAX_CPU_SECONDS);
85 #define TRY_EXCEPT(cmd, badresult) \
86 do { \
87 if ((cmd) == (badresult)) \
88 unresolved("%s returned %s", #cmd, #badresult); \
89 } while (0)
91 int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char *argv[]) {
92 struct itimerval itval;
93 AvahiDnsPacket *packet;
94 char name[512];
95 int ret;
96 uint8_t badrr[] = {
97 0xC0, AVAHI_DNS_PACKET_HEADER_SIZE, /* self-referential QNAME pointer */
98 0, 1, /* QTYPE A (host addr) */
99 0, 1, /* QCLASS IN (internet/ipv4) */
102 if (signal(SIGVTALRM, handle) == SIG_ERR)
103 stdlib_fail("signal(SIGVTALRM)");
105 memset(&itval, 0, sizeof(itval));
106 itval.it_value.tv_sec = MAX_CPU_SECONDS;
108 if (setitimer(ITIMER_VIRTUAL, &itval, NULL) == -1)
109 stdlib_fail("setitimer()");
111 TRY_EXCEPT(packet = avahi_dns_packet_new_query(512), NULL);
112 TRY_EXCEPT(avahi_dns_packet_append_bytes(packet, badrr, sizeof(badrr)), NULL);
114 /* This is expected to fail (if it returns) */
115 ret = avahi_dns_packet_consume_name(packet, name, sizeof(name));
117 if (ret != -1)
118 fail("avahi_dns_packet_consume_name() returned %d; -1 was expected", ret);
120 return EXIT_SUCCESS;
123 /* vim:ts=4:sw=4:et