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authorThomas Guyot-Sionnest <dermoth@aei.ca>2009-01-15 09:22:57 (GMT)
committerThomas Guyot-Sionnest <dermoth@aei.ca>2009-01-15 10:19:08 (GMT)
commit71cdb52799220f8d9052643baf1d3e9836a9c755 (patch)
tree27aee97a35d9ab51f0d8f64a46690bd41a5f8c1b /gl/write.c
parentf7afa46586645e50498d8b2d0c67884f014dc3a4 (diff)
downloadmonitoring-plugins-71cdb52799220f8d9052643baf1d3e9836a9c755.tar.gz
Sync with gnulib
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1/* POSIX compatible write() function.
2 Copyright (C) 2008 Free Software Foundation, Inc.
3 Written by Bruno Haible <bruno@clisp.org>, 2008.
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#include <config.h>
19
20/* Specification. */
21#include <unistd.h>
22
23/* Replace this function only if module 'sigpipe' is requested. */
24#if GNULIB_SIGPIPE
25
26/* On native Windows platforms, SIGPIPE does not exist. When write() is
27 called on a pipe with no readers, WriteFile() fails with error
28 GetLastError() = ERROR_NO_DATA, and write() in consequence fails with
29 error EINVAL. */
30
31# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
32
33# include <errno.h>
34# include <signal.h>
35# include <io.h>
36
37# define WIN32_LEAN_AND_MEAN /* avoid including junk */
38# include <windows.h>
39
40ssize_t
41rpl_write (int fd, const void *buf, size_t count)
42#undef write
43{
44 ssize_t ret = write (fd, buf, count);
45
46 if (ret < 0)
47 {
48 if (GetLastError () == ERROR_NO_DATA
49 && GetFileType (_get_osfhandle (fd)) == FILE_TYPE_PIPE)
50 {
51 /* Try to raise signal SIGPIPE. */
52 raise (SIGPIPE);
53 /* If it is currently blocked or ignored, change errno from EINVAL
54 to EPIPE. */
55 errno = EPIPE;
56 }
57 }
58 return ret;
59}
60
61# endif
62#endif