Mercurial > dropbear
view libtomcrypt/src/headers/tomcrypt_dropbear.h @ 1630:9579377b5f8b
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 | 8305ebe45940 |
| children | 3a97f14c0235 |
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/* compile options depend on Dropbear options.h */ #include "options.h" /* Dropbear config */ #define LTC_NOTHING /* Use small code where possible */ #if DROPBEAR_SMALL_CODE #define LTC_SMALL_CODE #endif #if DROPBEAR_BLOWFISH #define LTC_BLOWFISH #endif #if DROPBEAR_AES #define LTC_RIJNDAEL #endif /* _TABLES tells it to use tables during setup, _SMALL means to use the smaller scheduled key format * (saves 4KB of ram), _ALL_TABLES enables all tables during setup */ #if DROPBEAR_TWOFISH #define LTC_TWOFISH #define LTC_TWOFISH_SMALL #endif #if DROPBEAR_3DES #define LTC_DES #endif #if DROPBEAR_ENABLE_CTR_MODE #define LTC_CBC_MODE #endif #if DROPBEAR_ENABLE_CTR_MODE #define LTC_CTR_MODE #endif #if DROPBEAR_SHA512 #define LTC_SHA512 #endif #if DROPBEAR_SHA384 #define LTC_SHA384 #endif #if DROPBEAR_SHA256 #define LTC_SHA256 #endif #define LTC_SHA1 #if DROPBEAR_MD5 #define LTC_MD5 #endif /* ECC */ #if DROPBEAR_ECC #define LTC_MECC #define LTM_DESC /* use Shamir's trick for point mul (speeds up signature verification) */ #define LTC_ECC_SHAMIR #if DROPBEAR_ECC_256 #define LTC_ECC256 #endif #if DROPBEAR_ECC_384 #define LTC_ECC384 #endif #if DROPBEAR_ECC_521 #define LTC_ECC521 #endif #endif /* DROPBEAR_ECC */ #define LTC_HMAC #define LTC_HASH_HELPERS #define LTC_NO_TEST #define LTC_BASE64 /* end Dropbear config */