diff options
| -rw-r--r-- | lib/safe-read.h | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/lib/safe-read.h b/lib/safe-read.h index eef929822..cbe6e0bfd 100644 --- a/lib/safe-read.h +++ b/lib/safe-read.h @@ -1,12 +1,25 @@ -#ifndef PARAMS -# if defined PROTOTYPES || (defined __STDC__ && __STDC__) -# define PARAMS(Args) Args -# else -# define PARAMS(Args) () -# endif -#endif +/* An interface to read() that retries after interrupts. + Copyright (C) 2002 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include <stddef.h> #define SAFE_READ_ERROR ((size_t) -1) -size_t -safe_read PARAMS ((int desc, void *ptr, size_t len)); +/* Read up to COUNT bytes at BUF from descriptor FD, retrying if interrupted. + Return the actual number of bytes read, zero for EOF, or SAFE_READ_ERROR + upon error. */ +extern size_t safe_read (int fd, void *buf, size_t count); |