/* full-write.c -- an interface to write that retries after interrupts
- Copyright (C) 1993, 1994, 1997, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994, 1997, 1998, 1999 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
#include <sys/types.h>
+#include "safe-read.h"
+
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
/* Write LEN bytes at PTR to descriptor DESC, retrying if interrupted.
Return LEN upon success, write's (negative) error code otherwise. */
-int
+ssize_t
full_write (int desc, const char *ptr, size_t len)
{
- int total_written;
+ ssize_t total_written = 0;
- total_written = 0;
while (len > 0)
{
- int written = write (desc, ptr, len);
+ ssize_t written = write (desc, ptr, len);
/* FIXME: write on my slackware Linux 1.2.13 returns zero when
I try to write more data than there is room on a floppy disk.
This puts dd into an infinite loop. Reproduce with