1 /* vi: set sw=4 ts=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>.
10 * dos2unix filters reading input from stdin and writing output to stdout.
12 * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
22 /* if fn is NULL then input is stdin and output is stdout */
23 static int convert(char *fn)
29 in = xfopen(fn, "rw");
31 The file is then created with mode read/write and
32 permissions 0666 for glibc 2.0.6 and earlier or
33 0600 for glibc 2.0.7 and later.
35 snprintf(bb_common_bufsiz1, sizeof(bb_common_bufsiz1), "%sXXXXXX", fn);
37 sizeof bb_common_bufsiz1 is 4096, so it should be big enough to
38 hold the full path. However if the output is truncated the
39 subsequent call to mkstemp would fail.
41 i = mkstemp(&bb_common_bufsiz1[0]);
42 if (i == -1 || chmod(bb_common_bufsiz1, 0600) == -1) {
43 bb_perror_nomsg_and_die();
45 out = fdopen(i, "w+");
48 remove(bb_common_bufsiz1);
55 while ((i = fgetc(in)) != EOF) {
59 if (ConvType == CT_UNIX2DOS)
68 if (fclose(in) < 0 || fclose(out) < 0) {
70 remove(bb_common_bufsiz1);
73 /* Assume they are both on the same filesystem (which
74 * should be true since we put them into the same directory
75 * so we _should_ be ok, but you never know... */
76 if (rename(bb_common_bufsiz1, fn) < 0) {
77 bb_perror_msg("cannot rename '%s' as '%s'", bb_common_bufsiz1, fn);
85 int dos2unix_main(int argc, char **argv);
86 int dos2unix_main(int argc, char **argv)
90 /* See if we are supposed to be doing dos2unix or unix2dos */
91 if (applet_name[0] == 'd') {
92 ConvType = CT_DOS2UNIX; /*2 */
94 ConvType = CT_UNIX2DOS; /*1 */
96 /* -u and -d are mutally exclusive */
97 opt_complementary = "?:u--d:d--u";
98 /* process parameters */
99 /* -u convert to unix */
100 /* -d convert to dos */
101 o = getopt32(argc, argv, "du");
103 /* Do the conversion requested by an argument else do the default
104 * conversion depending on our name. */
109 while (optind < argc)
110 if ((o = convert(argv[optind++])) < 0)