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nagios-plugins  1.4.16
safe-read.h
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00001 /* An interface to read() that retries after interrupts.
00002    Copyright (C) 2002, 2006, 2009-2010 Free Software Foundation, Inc.
00003 
00004    This program is free software: you can redistribute it and/or modify
00005    it under the terms of the GNU General Public License as published by
00006    the Free Software Foundation; either version 3 of the License, or
00007    (at your option) any later version.
00008 
00009    This program is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012    GNU General Public License for more details.
00013 
00014    You should have received a copy of the GNU General Public License
00015    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
00016 
00017 #include <stddef.h>
00018 
00019 #ifdef __cplusplus
00020 extern "C" {
00021 #endif
00022 
00023 
00024 #define SAFE_READ_ERROR ((size_t) -1)
00025 
00026 /* Read up to COUNT bytes at BUF from descriptor FD, retrying if interrupted.
00027    Return the actual number of bytes read, zero for EOF, or SAFE_READ_ERROR
00028    upon error.  */
00029 extern size_t safe_read (int fd, void *buf, size_t count);
00030 
00031 
00032 #ifdef __cplusplus
00033 }
00034 #endif