Mercurial > dropbear
view libtomcrypt/src/misc/compare_testvector.c @ 1665:7c17995bcdfb
Improve address logging on early exit messages (#83)
Change 'Early exit' and 'Exit before auth' messages to include the IP
address & port as part of the message.
This allows log scanning utilities such as 'fail2ban' to obtain the
offending IP address as part of the failure event instead of extracting
the PID from the message and then scanning the log again for match
'child connection from' messages
Signed-off-by: Kevin Darbyshire-Bryant <[email protected]>
author | Kevin Darbyshire-Bryant <6500011+ldir-EDB0@users.noreply.github.com> |
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date | Wed, 18 Mar 2020 15:28:56 +0000 |
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: $Format:%ai$ */