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1 | /* pread.c -- version of pread for gold. */ |
2 | ||
82704155 | 3 | /* Copyright (C) 2006-2019 Free Software Foundation, Inc. |
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4 | Written by Ian Lance Taylor <iant@google.com>. |
5 | ||
6 | This file is part of gold. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | MA 02110-1301, USA. */ | |
22 | ||
23 | /* This file implements pread for systems which don't have it. This | |
24 | file is only compiled if pread is not present on the system. This | |
25 | is not an exact version of pread, as it does not preserve the | |
26 | current file offset. */ | |
27 | ||
28 | #include "config.h" | |
29 | ||
d446d6c4 | 30 | #include <stdio.h> |
82dcae9d ILT |
31 | #include <sys/types.h> |
32 | #include <unistd.h> | |
33 | ||
fd03461a ILT |
34 | extern ssize_t pread (int, void *, size_t, off_t); |
35 | ||
82dcae9d | 36 | ssize_t |
fd03461a | 37 | pread (int fd, void *buf, size_t count, off_t offset) |
82dcae9d ILT |
38 | { |
39 | if (lseek(fd, offset, SEEK_SET) != offset) | |
40 | return -1; | |
41 | return read(fd, buf, count); | |
42 | } |