Mercurial > dovecot > core-2.2
view src/lib/write-full.c @ 21390:2e2563132d5f
Updated copyright notices to include the year 2017.
author | Stephan Bosch <stephan.bosch@dovecot.fi> |
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date | Wed, 11 Jan 2017 02:51:13 +0100 |
parents | 0f22db71df7a |
children | cb108f786fb4 |
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/* Copyright (c) 2002-2017 Dovecot authors, see the included COPYING file */ #include "lib.h" #include "write-full.h" #include <unistd.h> int write_full(int fd, const void *data, size_t size) { ssize_t ret; while (size > 0) { ret = write(fd, data, size < SSIZE_T_MAX ? size : SSIZE_T_MAX); if (unlikely(ret < 0)) return -1; if (unlikely(ret == 0)) { /* nothing was written, only reason for this should be out of disk space */ errno = ENOSPC; return -1; } data = CONST_PTR_OFFSET(data, ret); size -= ret; } return 0; } int pwrite_full(int fd, const void *data, size_t size, off_t offset) { ssize_t ret; while (size > 0) { ret = pwrite(fd, data, size < SSIZE_T_MAX ? size : SSIZE_T_MAX, offset); if (unlikely(ret < 0)) return -1; if (unlikely(ret == 0)) { /* nothing was written, only reason for this should be out of disk space */ errno = ENOSPC; return -1; } data = CONST_PTR_OFFSET(data, ret); size -= ret; offset += ret; } return 0; }