Mercurial > dropbear
view libtomcrypt/src/misc/compare_testvector.c @ 1552:e46f7f1da56a
CHANGES for 2018.76
author | Matt Johnston <matt@ucc.asn.au> |
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date | Tue, 27 Feb 2018 22:14:04 +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 compare_testvector.c Function to compare two testvectors and print a (detailed) error-message if required, Steffen Jaeckel */ #if defined(LTC_TEST) && defined(LTC_TEST_DBG) static void _print_hex(const char* what, const void* v, const unsigned long l) { const unsigned char* p = v; unsigned long x, y = 0, z; fprintf(stderr, "%s contents: \n", what); for (x = 0; x < l; ) { fprintf(stderr, "%02X ", p[x]); if (!(++x % 16) || x == l) { if((x % 16) != 0) { z = 16 - (x % 16); if(z >= 8) fprintf(stderr, " "); for (; z != 0; --z) { fprintf(stderr, " "); } } fprintf(stderr, " | "); for(; y < x; y++) { if((y % 8) == 0) fprintf(stderr, " "); if(isgraph(p[y])) fprintf(stderr, "%c", p[y]); else fprintf(stderr, "."); } fprintf(stderr, "\n"); } else if((x % 8) == 0) { fprintf(stderr, " "); } } } #endif /** Compare two test-vectors @param is The data as it is @param is_len The length of is @param should The data as it should @param should_len The length of should @param what The type of the data @param which The iteration count @return 0 on equality, -1 or 1 on difference */ int compare_testvector(const void* is, const unsigned long is_len, const void* should, const unsigned long should_len, const char* what, int which) { int res = 0; if(is_len != should_len) res = is_len > should_len ? -1 : 1; else res = XMEMCMP(is, should, is_len); #if defined(LTC_TEST) && defined(LTC_TEST_DBG) if (res != 0) { fprintf(stderr, "Testvector #%i of %s failed:\n", which, what); _print_hex("SHOULD", should, should_len); _print_hex("IS ", is, is_len); } #else LTC_UNUSED_PARAM(which); LTC_UNUSED_PARAM(what); #endif return res; } /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */