2 * Copyright (c) 2018, Juniper Networks, Inc.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
14 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
15 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
16 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
17 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
19 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 #include <sys/cdefs.h>
27 __FBSDID("$FreeBSD$");
30 #include <libsecureboot.h>
36 * @brief decode ascii armor
38 * once we get rid of the trailing checksum
39 * we can treat as PEM.
44 dearmor(char *pem, size_t nbytes, size_t *len)
54 unsigned char *data = NULL;
58 /* we need to remove the Armor tail */
59 if ((cp = strstr((char *)pem, "\n=")) &&
60 (ep = strstr(cp, "\n---"))) {
61 memmove(cp, ep, nbytes - (size_t)(ep - pem));
62 nbytes -= (size_t)(ep - cp);
66 /* we also need to remove any headers */
67 if ((cp = strstr((char *)pem, "---\n")) &&
68 (ep = strstr(cp, "\n\n"))) {
71 memmove(cp, ep, nbytes - (size_t)(ep - pem));
72 nbytes -= (size_t)(ep - cp);
75 if ((po = decode_pem(pem, nbytes, &npo))) {
80 if ((bp = BIO_new_mem_buf(pem, (int)nbytes))) {
81 long llen = (long)nbytes;
83 if (!PEM_read_bio(bp, &name, &header, &data, &llen))
101 main(int argc, char *argv[])
103 const char *infile, *outfile;
109 infile = outfile = NULL;
110 while ((o = getopt(argc, argv, "i:o:")) != -1) {
119 errx(1, "unknown option: -%c", o);
123 errx(1, "need -i infile");
125 if ((fd = open(outfile, O_WRONLY|O_CREAT|O_TRUNC)) < 0)
126 err(1, "cannot open %s", outfile);
130 data = read_file(infile, &n);
131 if (!(data[0] & OPENPGP_TAG_ISTAG))
132 data = dearmor(data, n, &n);
133 for (x = 0; x < n; ) {
134 o = write(fd, &data[x], (n - x));
136 err(1, "cannot write");