From e8bd88d1fcded01ccd066572eeaae1b507989cb3 Mon Sep 17 00:00:00 2001 From: RincewindsHat <12514511+RincewindsHat@users.noreply.github.com> Date: Tue, 31 Jan 2023 14:46:01 +0100 Subject: Sync with the latest Gnulib code 668c0b8ffa --- gl/safe-read.c | 77 ---------------------------------------------------------- 1 file changed, 77 deletions(-) delete mode 100644 gl/safe-read.c (limited to 'gl/safe-read.c') diff --git a/gl/safe-read.c b/gl/safe-read.c deleted file mode 100644 index 6a48c0cc..00000000 --- a/gl/safe-read.c +++ /dev/null @@ -1,77 +0,0 @@ -/* An interface to read and write that retries after interrupts. - - Copyright (C) 1993-1994, 1998, 2002-2006, 2009-2013 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 3 of the License, 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, see . */ - -#include - -/* Specification. */ -#ifdef SAFE_WRITE -# include "safe-write.h" -#else -# include "safe-read.h" -#endif - -/* Get ssize_t. */ -#include -#include - -#include - -#ifdef EINTR -# define IS_EINTR(x) ((x) == EINTR) -#else -# define IS_EINTR(x) 0 -#endif - -#include - -#ifdef SAFE_WRITE -# define safe_rw safe_write -# define rw write -#else -# define safe_rw safe_read -# define rw read -# undef const -# define const /* empty */ -#endif - -/* Read(write) up to COUNT bytes at BUF from(to) descriptor FD, retrying if - interrupted. Return the actual number of bytes read(written), zero for EOF, - or SAFE_READ_ERROR(SAFE_WRITE_ERROR) upon error. */ -size_t -safe_rw (int fd, void const *buf, size_t count) -{ - /* Work around a bug in Tru64 5.1. Attempting to read more than - INT_MAX bytes fails with errno == EINVAL. See - . - When decreasing COUNT, keep it block-aligned. */ - enum { BUGGY_READ_MAXIMUM = INT_MAX & ~8191 }; - - for (;;) - { - ssize_t result = rw (fd, buf, count); - - if (0 <= result) - return result; - else if (IS_EINTR (errno)) - continue; - else if (errno == EINVAL && BUGGY_READ_MAXIMUM < count) - count = BUGGY_READ_MAXIMUM; - else - return result; - } -} -- cgit v1.2.3-74-g34f1