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452b4ba5 MK |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
e2882c85 | 3 | Copyright 2008-2018 Free Software Foundation, Inc. |
452b4ba5 MK |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 3 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
17 | ||
18 | #define _GNU_SOURCE | |
19 | #include <unistd.h> | |
20 | #include <sys/uio.h> | |
21 | ||
22 | void | |
23 | marker1 (void) | |
24 | { | |
25 | } | |
26 | ||
27 | void | |
28 | marker2 (void) | |
29 | { | |
30 | } | |
31 | ||
32 | int fds[2] = { -1, -1 }; | |
33 | char buf[5]; | |
34 | const struct iovec v[4] = { | |
35 | { &buf[1], 1 }, | |
36 | { &buf[0], 1 }, | |
37 | { &buf[3], 1 }, | |
38 | { &buf[2], 1 }, | |
39 | }; | |
40 | ||
41 | int | |
42 | main (void) | |
43 | { | |
44 | marker1 (); | |
45 | pipe (fds); | |
46 | write (fds[1], "UNIX", 4); | |
47 | readv (fds[0], v, 4); | |
48 | marker2 (); | |
49 | return 0; | |
50 | } |