Annotation of /trunk/mkinitrd-magellan/busybox/coreutils/dos2unix.c
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Revision 984 -
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Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
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Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
File MIME type: text/plain
File size: 2173 byte(s)
-updated to busybox-1.16.1 and enabled blkid/uuid support in default config
1 | niro | 532 | /* vi: set sw=4 ts=4: */ |
2 | /* | ||
3 | * dos2unix for BusyBox | ||
4 | * | ||
5 | * dos2unix '\n' convertor 0.5.0 | ||
6 | * based on Unix2Dos 0.9.0 by Peter Hanecak (made 19.2.1997) | ||
7 | * Copyright 1997,.. by Peter Hanecak <hanecak@megaloman.sk>. | ||
8 | * All rights reserved. | ||
9 | * | ||
10 | * dos2unix filters reading input from stdin and writing output to stdout. | ||
11 | * | ||
12 | * Licensed under the GPL v2 or later, see the file LICENSE in this tarball. | ||
13 | */ | ||
14 | |||
15 | niro | 816 | #include "libbb.h" |
16 | niro | 532 | |
17 | niro | 816 | enum { |
18 | niro | 532 | CT_UNIX2DOS = 1, |
19 | CT_DOS2UNIX | ||
20 | niro | 816 | }; |
21 | niro | 532 | |
22 | /* if fn is NULL then input is stdin and output is stdout */ | ||
23 | niro | 816 | static void convert(char *fn, int conv_type) |
24 | niro | 532 | { |
25 | FILE *in, *out; | ||
26 | int i; | ||
27 | niro | 816 | char *temp_fn = temp_fn; /* for compiler */ |
28 | char *resolved_fn = resolved_fn; | ||
29 | niro | 532 | |
30 | niro | 816 | in = stdin; |
31 | out = stdout; | ||
32 | niro | 532 | if (fn != NULL) { |
33 | niro | 816 | struct stat st; |
34 | |||
35 | resolved_fn = xmalloc_follow_symlinks(fn); | ||
36 | if (resolved_fn == NULL) | ||
37 | bb_simple_perror_msg_and_die(fn); | ||
38 | in = xfopen_for_read(resolved_fn); | ||
39 | fstat(fileno(in), &st); | ||
40 | |||
41 | temp_fn = xasprintf("%sXXXXXX", resolved_fn); | ||
42 | i = mkstemp(temp_fn); | ||
43 | if (i == -1 | ||
44 | || fchmod(i, st.st_mode) == -1 | ||
45 | ) { | ||
46 | bb_simple_perror_msg_and_die(temp_fn); | ||
47 | niro | 532 | } |
48 | niro | 984 | out = xfdopen_for_write(i); |
49 | niro | 532 | } |
50 | |||
51 | while ((i = fgetc(in)) != EOF) { | ||
52 | if (i == '\r') | ||
53 | continue; | ||
54 | niro | 816 | if (i == '\n') |
55 | if (conv_type == CT_UNIX2DOS) | ||
56 | niro | 532 | fputc('\r', out); |
57 | fputc(i, out); | ||
58 | } | ||
59 | |||
60 | if (fn != NULL) { | ||
61 | if (fclose(in) < 0 || fclose(out) < 0) { | ||
62 | niro | 816 | unlink(temp_fn); |
63 | bb_perror_nomsg_and_die(); | ||
64 | niro | 532 | } |
65 | niro | 816 | xrename(temp_fn, resolved_fn); |
66 | free(temp_fn); | ||
67 | free(resolved_fn); | ||
68 | niro | 532 | } |
69 | } | ||
70 | |||
71 | niro | 816 | int dos2unix_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
72 | niro | 984 | int dos2unix_main(int argc UNUSED_PARAM, char **argv) |
73 | niro | 532 | { |
74 | niro | 816 | int o, conv_type; |
75 | niro | 532 | |
76 | /* See if we are supposed to be doing dos2unix or unix2dos */ | ||
77 | niro | 816 | conv_type = CT_UNIX2DOS; |
78 | niro | 532 | if (applet_name[0] == 'd') { |
79 | niro | 816 | conv_type = CT_DOS2UNIX; |
80 | niro | 532 | } |
81 | |||
82 | niro | 816 | /* -u convert to unix, -d convert to dos */ |
83 | opt_complementary = "u--d:d--u"; /* mutually exclusive */ | ||
84 | o = getopt32(argv, "du"); | ||
85 | |||
86 | niro | 532 | /* Do the conversion requested by an argument else do the default |
87 | * conversion depending on our name. */ | ||
88 | if (o) | ||
89 | niro | 816 | conv_type = o; |
90 | niro | 532 | |
91 | niro | 984 | argv += optind; |
92 | niro | 816 | do { |
93 | /* might be convert(NULL) if there is no filename given */ | ||
94 | niro | 984 | convert(*argv, conv_type); |
95 | } while (*++argv); | ||
96 | niro | 532 | |
97 | niro | 816 | return 0; |
98 | niro | 532 | } |