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b39b6e0c AZ |
1 | /* Check sendmmsg cancellation. |
2 | ||
688903eb | 3 | Copyright (C) 2016-2018 Free Software Foundation, Inc. |
b39b6e0c AZ |
4 | This file is part of the GNU C Library. |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
17 | License along with the GNU C Library; if not, see | |
18 | <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include <stdio.h> | |
ceaa9889 | 21 | #include <stddef.h> |
b39b6e0c AZ |
22 | #include <stdlib.h> |
23 | #include <string.h> | |
24 | #include <sys/types.h> | |
25 | #include <sys/socket.h> | |
26 | #include <sys/un.h> | |
27 | #include <sys/ipc.h> | |
28 | #include <sys/msg.h> | |
29 | #include <unistd.h> | |
30 | #include <errno.h> | |
31 | #include <pthread.h> | |
32 | ||
33 | #include "tst-cancel4-common.h" | |
34 | ||
35 | static void * | |
36 | tf_sendmmsg (void *arg) | |
37 | { | |
38 | if (arg == NULL) | |
39 | // XXX If somebody can provide a portable test case in which sendmmsg() | |
40 | // blocks we can enable this test to run in both rounds. | |
41 | abort (); | |
42 | ||
43 | struct sockaddr_un sun; | |
44 | ||
45 | tempfd = socket (AF_UNIX, SOCK_DGRAM, 0); | |
46 | if (tempfd == -1) | |
fa66f341 | 47 | FAIL_EXIT1 ("socket (AF_UNIX, SOCK_DGRAM, 0): %m"); |
b39b6e0c AZ |
48 | |
49 | int tries = 0; | |
50 | do | |
51 | { | |
52 | if (++tries > 10) | |
fa66f341 | 53 | FAIL_EXIT1 ("too many unsuccessful bind calls"); |
b39b6e0c AZ |
54 | |
55 | strcpy (sun.sun_path, "/tmp/tst-cancel4-socket-7-XXXXXX"); | |
56 | if (mktemp (sun.sun_path) == NULL) | |
fa66f341 | 57 | FAIL_EXIT1 ("cannot generate temp file name"); |
b39b6e0c AZ |
58 | |
59 | sun.sun_family = AF_UNIX; | |
60 | } | |
61 | while (bind (tempfd, (struct sockaddr *) &sun, | |
62 | offsetof (struct sockaddr_un, sun_path) | |
63 | + strlen (sun.sun_path) + 1) != 0); | |
64 | tempfname = strdup (sun.sun_path); | |
65 | ||
66 | tempfd2 = socket (AF_UNIX, SOCK_DGRAM, 0); | |
67 | if (tempfd2 == -1) | |
fa66f341 | 68 | FAIL_EXIT1 ("socket (AF_UNIX, SOCK_DGRAM, 0): %m"); |
b39b6e0c AZ |
69 | |
70 | int r = pthread_barrier_wait (&b2); | |
71 | if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) | |
fa66f341 | 72 | FAIL_EXIT1 ("pthread_barrier_wait"); |
b39b6e0c AZ |
73 | |
74 | r = pthread_barrier_wait (&b2); | |
75 | if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) | |
fa66f341 | 76 | FAIL_EXIT1 ("pthread_barrier_wait"); |
b39b6e0c AZ |
77 | |
78 | pthread_cleanup_push (cl, NULL); | |
79 | ||
80 | char mem[1]; | |
81 | struct iovec iov[1]; | |
82 | iov[0].iov_base = mem; | |
83 | iov[0].iov_len = 1; | |
84 | ||
85 | struct mmsghdr mm; | |
86 | mm.msg_hdr.msg_name = &sun; | |
87 | mm.msg_hdr.msg_namelen = (offsetof (struct sockaddr_un, sun_path) | |
88 | + strlen (sun.sun_path) + 1); | |
89 | mm.msg_hdr.msg_iov = iov; | |
90 | mm.msg_hdr.msg_iovlen = 1; | |
91 | mm.msg_hdr.msg_control = NULL; | |
92 | mm.msg_hdr.msg_controllen = 0; | |
93 | ||
94 | ssize_t ret = sendmmsg (tempfd2, &mm, 1, 0); | |
95 | if (ret == -1 && errno == ENOSYS) | |
96 | exit (77); | |
97 | ||
98 | pthread_cleanup_pop (0); | |
99 | ||
fa66f341 | 100 | FAIL_EXIT1 ("sendmmsg returned"); |
b39b6e0c AZ |
101 | } |
102 | ||
103 | struct cancel_tests tests[] = | |
104 | { | |
105 | ADD_TEST (sendmmsg, 2, 1), | |
106 | }; | |
107 | #define ntest_tf (sizeof (tests) / sizeof (tests[0])) | |
108 | ||
109 | #include "tst-cancel4-common.c" |