/* safe-read.c -- an interface to read that retries after interrupts
- Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994, 1998 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
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-#ifdef HAVE_CONFIG_H
+#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <sys/types.h>
-#ifdef HAVE_UNISTD_H
+#if HAVE_UNISTD_H
# include <unistd.h>
#endif
extern int errno;
#endif
+#include "safe-read.h"
+
/* Read LEN bytes at PTR from descriptor DESC, retrying if interrupted.
Return the actual number of bytes read, zero for EOF, or negative
for an error. */
-int
-safe_read (desc, ptr, len)
- int desc;
- char *ptr;
- int len;
+ssize_t
+safe_read (int desc, void *ptr, size_t len)
{
- int n_chars;
+ ssize_t n_chars;
if (len <= 0)
return len;