3 * Copyright 2014 Roy Marples <roy@marples.name>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 dhcpcd_decode_shell(char *dst, size_t dlen, const char *src)
46 if ((l = dhcpcd_decode(tmp, dlen, src)) != -1)
47 l = dhcpcd_encode(dst, dlen, tmp, (size_t)l);
54 process(char *src, ssize_t (*decode)(char *, size_t, const char *))
60 buflen = strlen(src) + 1;
63 err(EXIT_FAILURE, "malloc");
64 if ((dl = decode(buf, buflen, src)) == -1) {
66 err(EXIT_FAILURE, "decode");
68 if (fwrite(buf, 1, (size_t)dl, stdout) != (size_t)dl) {
70 err(EXIT_FAILURE, "fwrite");
80 fprintf(stderr, "usage: %s [-sx] [data ...]\n", basename(progname));
84 main(int argc, char **argv)
87 ssize_t (*decode)(char *, size_t, const char *);
89 decode = dhcpcd_decode;
90 while ((opt = getopt(argc, argv, "sx")) != -1) {
93 decode = dhcpcd_decode_shell;
96 decode = dhcpcd_decode_hex;
104 if (optind >= argc && isatty(fileno(stdin))) {
109 for (; optind < argc; optind++)
110 process(argv[optind], decode);
112 if (!isatty(fileno(stdin))) {
119 while ((argl = getline(&arg, &len, stdin)) != -1) {
120 if (arg[argl - 1] == '\n')
121 arg[argl - 1] = '\0';
122 process(arg, decode);