busybox/libbb/safe_write.c

/* vi: set sw=4 ts=4: */
/*
 * Utility routines.
 *
 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
 *
 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
 */

#include "libbb.h"

ssize_t FAST_FUNC safe_write(int fd, const void *buf, size_t count)
{
	ssize_t n;

	do {
		n = write(fd, buf, count);
	} while (n < 0 && errno == EINTR);

	return n;
}
We did not have a safe_write, which is the analog to safe_read. Convert full_write to use safe_write internally, which is needed to guarantee proper behavior, i.e. when writing to a pipe. 2003-10-09 14:05:42 +05:30			`/* vi: set sw=4 ts=4: */`
			`/*`
			`* Utility routines.`
			`*`
Remove trailing whitespace. Update copyright to include 2004. 2004-03-15 13:59:22 +05:30			`* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>`
We did not have a safe_write, which is the analog to safe_read. Convert full_write to use safe_write internally, which is needed to guarantee proper behavior, i.e. when writing to a pipe. 2003-10-09 14:05:42 +05:30			`*`
*: make GNU licensing statement forms more regular This change retains "or later" state! No licensing _changes_ here, only form is adjusted (article, space between "GPL" and "v2" and so on). Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> 2010-08-16 23:44:46 +05:30			`* Licensed under GPLv2 or later, see file LICENSE in this source tree.`
We did not have a safe_write, which is the analog to safe_read. Convert full_write to use safe_write internally, which is needed to guarantee proper behavior, i.e. when writing to a pipe. 2003-10-09 14:05:42 +05:30			`*/`

			`#include "libbb.h"`

*: introduce and use FAST_FUNC: regparm on i386, otherwise no-on text data bss dec hex filename 808035 611 6868 815514 c719a busybox_old 804472 611 6868 811951 c63af busybox_unstripped 2008-06-27 08:22:20 +05:30			`ssize_t FAST_FUNC safe_write(int fd, const void *buf, size_t count)`
We did not have a safe_write, which is the analog to safe_read. Convert full_write to use safe_write internally, which is needed to guarantee proper behavior, i.e. when writing to a pipe. 2003-10-09 14:05:42 +05:30			`{`
			`ssize_t n;`

			`do {`
			`n = write(fd, buf, count);`
			`} while (n < 0 && errno == EINTR);`

			`return n;`
			`}`