1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
/* vi: set sw=4 ts=4: */
/*
* dos2unix for BusyBox
*
* dos2unix '\n' convertor 0.5.0
* based on Unix2Dos 0.9.0 by Peter Hanecak (made 19.2.1997)
* Copyright 1997,.. by Peter Hanecak <hanecak@megaloman.sk>.
* All rights reserved.
*
* dos2unix filters reading input from stdin and writing output to stdout.
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
//usage:#define dos2unix_trivial_usage
//usage: "[-ud] [FILE]"
//usage:#define dos2unix_full_usage "\n\n"
//usage: "Convert FILE in-place from DOS to Unix format.\n"
//usage: "When no file is given, use stdin/stdout.\n"
//usage: "\n -u dos2unix"
//usage: "\n -d unix2dos"
//usage:
//usage:#define unix2dos_trivial_usage
//usage: "[-ud] [FILE]"
//usage:#define unix2dos_full_usage "\n\n"
//usage: "Convert FILE in-place from Unix to DOS format.\n"
//usage: "When no file is given, use stdin/stdout.\n"
//usage: "\n -u dos2unix"
//usage: "\n -d unix2dos"
#include "libbb.h"
/* This is a NOEXEC applet. Be very careful! */
enum {
CT_UNIX2DOS = 1,
CT_DOS2UNIX
};
/* if fn is NULL then input is stdin and output is stdout */
static void convert(char *fn, int conv_type)
{
FILE *in, *out;
int i;
char *temp_fn = temp_fn; /* for compiler */
char *resolved_fn = resolved_fn;
in = stdin;
out = stdout;
if (fn != NULL) {
struct stat st;
resolved_fn = xmalloc_follow_symlinks(fn);
if (resolved_fn == NULL)
bb_simple_perror_msg_and_die(fn);
in = xfopen_for_read(resolved_fn);
fstat(fileno(in), &st);
temp_fn = xasprintf("%sXXXXXX", resolved_fn);
i = xmkstemp(temp_fn);
if (fchmod(i, st.st_mode) == -1)
bb_simple_perror_msg_and_die(temp_fn);
out = xfdopen_for_write(i);
}
while ((i = fgetc(in)) != EOF) {
if (i == '\r')
continue;
if (i == '\n')
if (conv_type == CT_UNIX2DOS)
fputc('\r', out);
fputc(i, out);
}
if (fn != NULL) {
if (fclose(in) < 0 || fclose(out) < 0) {
unlink(temp_fn);
bb_perror_nomsg_and_die();
}
xrename(temp_fn, resolved_fn);
free(temp_fn);
free(resolved_fn);
}
}
int dos2unix_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int dos2unix_main(int argc UNUSED_PARAM, char **argv)
{
int o, conv_type;
/* See if we are supposed to be doing dos2unix or unix2dos */
conv_type = CT_UNIX2DOS;
if (applet_name[0] == 'd') {
conv_type = CT_DOS2UNIX;
}
/* -u convert to unix, -d convert to dos */
opt_complementary = "u--d:d--u"; /* mutually exclusive */
o = getopt32(argv, "du");
/* Do the conversion requested by an argument else do the default
* conversion depending on our name. */
if (o)
conv_type = o;
argv += optind;
do {
/* might be convert(NULL) if there is no filename given */
convert(*argv, conv_type);
} while (*argv && *++argv);
return 0;
}
|
