Mercurial > dropbear
comparison libtomcrypt/src/pk/packet_valid_header.c @ 330:5488db2e9e4e
merge of 332f709a4cb39cde4cedab7c3be89e05f3023067
and ca4ca78b82c5d430c69ce01bf794e8886ce81431
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Sat, 10 Jun 2006 16:39:40 +0000 |
| parents | 1b9e69c058d2 |
| children |
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| 329:8ed0dce45126 | 330:5488db2e9e4e |
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| 1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis | |
| 2 * | |
| 3 * LibTomCrypt is a library that provides various cryptographic | |
| 4 * algorithms in a highly modular and flexible manner. | |
| 5 * | |
| 6 * The library is free for all purposes without any express | |
| 7 * guarantee it works. | |
| 8 * | |
| 9 * Tom St Denis, [email protected], http://libtomcrypt.org | |
| 10 */ | |
| 11 #include "tomcrypt.h" | |
| 12 | |
| 13 #ifdef PACKET | |
| 14 | |
| 15 int packet_valid_header(unsigned char *src, int section, int subsection) | |
| 16 { | |
| 17 unsigned long ver; | |
| 18 | |
| 19 LTC_ARGCHK(src != NULL); | |
| 20 | |
| 21 /* check version */ | |
| 22 ver = ((unsigned long)src[0]) | ((unsigned long)src[1] << 8U); | |
| 23 if (CRYPT < ver) { | |
| 24 return CRYPT_INVALID_PACKET; | |
| 25 } | |
| 26 | |
| 27 /* check section and subsection */ | |
| 28 if (section != (int)src[2] || subsection != (int)src[3]) { | |
| 29 return CRYPT_INVALID_PACKET; | |
| 30 } | |
| 31 | |
| 32 return CRYPT_OK; | |
| 33 } | |
| 34 | |
| 35 #endif | |
| 36 | |
| 37 | |
| 38 | |
| 39 /* $Source: /cvs/libtom/libtomcrypt/src/pk/packet_valid_header.c,v $ */ | |
| 40 /* $Revision: 1.3 $ */ | |
| 41 /* $Date: 2005/05/05 14:35:59 $ */ |