Mercurial > dropbear

annotate libtommath/bn_s_mp_reverse.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
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1692
1051e4eea25a Update LibTomMath to 1.2.0 (#84)
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1 #include "tommath_private.h"
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2 #ifdef BN_S_MP_REVERSE_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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5
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6 /* reverse an array, used for radix code */
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7 void s_mp_reverse(unsigned char *s, size_t len)
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8 {
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9 size_t ix, iy;
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10 unsigned char t;
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11
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12 ix = 0u;
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13 iy = len - 1u;
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14 while (ix < iy) {
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15 t = s[ix];
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16 s[ix] = s[iy];
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17 s[iy] = t;
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18 ++ix;
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19 --iy;
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20 }
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21 }
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22 #endif