Mercurial > dropbear
view libtomcrypt/src/modes/ctr/ctr_getiv.c @ 1618:7bd7e95ad1f8
make writev #include consistent for variable declarations too
author | Matt Johnston <matt@ucc.asn.au> |
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date | Thu, 23 Aug 2018 23:59:24 +0800 |
parents | 6dba84798cd5 |
children |
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. */ #include "tomcrypt.h" /** @file ctr_getiv.c CTR implementation, get IV, Tom St Denis */ #ifdef LTC_CTR_MODE /** Get the current initialization vector @param IV [out] The destination of the initialization vector @param len [in/out] The max size and resulting size of the initialization vector @param ctr The CTR state @return CRYPT_OK if successful */ int ctr_getiv(unsigned char *IV, unsigned long *len, symmetric_CTR *ctr) { LTC_ARGCHK(IV != NULL); LTC_ARGCHK(len != NULL); LTC_ARGCHK(ctr != NULL); if ((unsigned long)ctr->blocklen > *len) { *len = ctr->blocklen; return CRYPT_BUFFER_OVERFLOW; } XMEMCPY(IV, ctr->ctr, ctr->blocklen); *len = ctr->blocklen; return CRYPT_OK; } #endif /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */