Contents of /trunk/mkinitrd-magellan/busybox/libbb/wfopen.c
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Revision 984 -
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Sun May 30 11:32:42 2010 UTC (14 years, 4 months ago) by niro
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File size: 1100 byte(s)
Sun May 30 11:32:42 2010 UTC (14 years, 4 months ago) by niro
File MIME type: text/plain
File size: 1100 byte(s)
-updated to busybox-1.16.1 and enabled blkid/uuid support in default config
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * Utility routines. |
4 | * |
5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> |
6 | * |
7 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
8 | */ |
9 | |
10 | #include "libbb.h" |
11 | |
12 | FILE* FAST_FUNC fopen_or_warn(const char *path, const char *mode) |
13 | { |
14 | FILE *fp = fopen(path, mode); |
15 | if (!fp) { |
16 | bb_simple_perror_msg(path); |
17 | //errno = 0; /* why? */ |
18 | } |
19 | return fp; |
20 | } |
21 | |
22 | FILE* FAST_FUNC fopen_for_read(const char *path) |
23 | { |
24 | return fopen(path, "r"); |
25 | } |
26 | |
27 | FILE* FAST_FUNC xfopen_for_read(const char *path) |
28 | { |
29 | return xfopen(path, "r"); |
30 | } |
31 | |
32 | FILE* FAST_FUNC fopen_for_write(const char *path) |
33 | { |
34 | return fopen(path, "w"); |
35 | } |
36 | |
37 | FILE* FAST_FUNC xfopen_for_write(const char *path) |
38 | { |
39 | return xfopen(path, "w"); |
40 | } |
41 | |
42 | static FILE* xfdopen_helper(unsigned fd_and_rw_bit) |
43 | { |
44 | FILE* fp = fdopen(fd_and_rw_bit >> 1, fd_and_rw_bit & 1 ? "w" : "r"); |
45 | if (!fp) |
46 | bb_error_msg_and_die(bb_msg_memory_exhausted); |
47 | return fp; |
48 | } |
49 | FILE* FAST_FUNC xfdopen_for_read(int fd) |
50 | { |
51 | return xfdopen_helper(fd << 1); |
52 | } |
53 | FILE* FAST_FUNC xfdopen_for_write(int fd) |
54 | { |
55 | return xfdopen_helper((fd << 1) + 1); |
56 | } |