Mercurial > dropbear

annotate libtommath/bn_mp_init_multi.c @ 1885:5d8dbb6fdab7

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Fix SSH_PUBKEYINFO, limit characters, add tests We fix a bad_bufptr() failure from a previous commit. We now limit the allowed characters to those that will definitely be safe in a shell. Some scripts/programs may use arbitrary environment variables without escaping correctly - that could be a problem in a restricted environment. The current allowed set is a-z A-Z 0-9 .,_-+@ This also adds a test for SSH_PUBKEYINFO, by default it only runs under github actions (or "act -j build").
author Matt Johnston <matt@ucc.asn.au>
date Wed, 16 Mar 2022 17:17:23 +0800
parents 1051e4eea25a
children
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f52919ffd3b1 update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents: 1470
diff changeset
1 #include "tommath_private.h"
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2 #ifdef BN_MP_INIT_MULTI_C
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3 /* LibTomMath, multiple-precision integer library -- Tom St Denis */
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4 /* SPDX-License-Identifier: Unlicense */
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parents: 1470
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5
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6 #include <stdarg.h>
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7
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8 mp_err mp_init_multi(mp_int *mp, ...)
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9 {
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10 mp_err err = MP_OKAY; /* Assume ok until proven otherwise */
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parents: 1470
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11 int n = 0; /* Number of ok inits */
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parents: 1470
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12 mp_int *cur_arg = mp;
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parents: 1470
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13 va_list args;
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parents: 1470
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14
f52919ffd3b1 update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
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parents: 1470
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15 va_start(args, mp); /* init args to next argument from caller */
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parents: 1470
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16 while (cur_arg != NULL) {
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parents: 1470
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17 if (mp_init(cur_arg) != MP_OKAY) {
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18 /* Oops - error! Back-track and mp_clear what we already
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parents: 1470
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19 succeeded in init-ing, then return error.
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20 */
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21 va_list clean_args;
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22
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parents: 1470
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23 /* now start cleaning up */
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parents: 1470
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24 cur_arg = mp;
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parents: 1470
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25 va_start(clean_args, mp);
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26 while (n-- != 0) {
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27 mp_clear(cur_arg);
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28 cur_arg = va_arg(clean_args, mp_int *);
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parents: 1470
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29 }
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parents: 1470
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30 va_end(clean_args);
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31 err = MP_MEM;
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32 break;
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parents: 1470
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33 }
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parents: 1470
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34 n++;
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parents: 1470
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35 cur_arg = va_arg(args, mp_int *);
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parents: 1470
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36 }
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parents: 1470
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37 va_end(args);
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parents: 1655
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38 return err; /* Assumed ok, if error flagged above. */
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parents:
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39 }
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41 #endif