Mercurial > dropbear

annotate libtomcrypt/src/misc/crypt/crypt_cipher_is_valid.c @ 1630:9579377b5f8b

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use strlcpy & strlcat (#74) * refactor checkpubkeyperms() with safe BSD functions fix gcc8 warnings ``` svr-authpubkey.c: In function 'checkpubkeyperms': svr-authpubkey.c:427:2: warning: 'strncat' specified bound 5 equals source length [-Wstringop-overflow=] strncat(filename, "/.ssh", 5); /* strlen("/.ssh") == 5 */ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ svr-authpubkey.c:433:2: warning: 'strncat' specified bound 16 equals source length [-Wstringop-overflow=] strncat(filename, "/authorized_keys", 16); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ``` see https://www.sudo.ws/todd/papers/strlcpy.html * restore strlcpy in xstrdup see original https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/xmalloc.c?rev=1.16
author François Perrad <francois.perrad@gadz.org>
date Wed, 20 Mar 2019 15:09:19 +0100
parents 6dba84798cd5
children
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9 #include "tomcrypt.h"
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11 /**
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12 @file crypt_cipher_is_valid.c
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13 Determine if cipher is valid, Tom St Denis
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14 */
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16 /*
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17 Test if a cipher index is valid
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18 @param idx The index of the cipher to search for
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19 @return CRYPT_OK if valid
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20 */
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21 int cipher_is_valid(int idx)
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22 {
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23 LTC_MUTEX_LOCK(&ltc_cipher_mutex);
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24 if (idx < 0 || idx >= TAB_SIZE || cipher_descriptor[idx].name == NULL) {
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25 LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
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26 return CRYPT_INVALID_CIPHER;
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27 }
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28 LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
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29 return CRYPT_OK;
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30 }
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31
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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32 /* ref: $Format:%D$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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33 /* git commit: $Format:%H$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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34 /* commit time: $Format:%ai$ */