Mercurial > dropbear
diff libtomcrypt/src/hashes/helper/hash_file.c @ 285:1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
to branch 'au.asn.ucc.matt.dropbear' (head fdf4a7a3b97ae5046139915de7e40399cceb2c01)
author | Matt Johnston <matt@ucc.asn.au> |
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date | Wed, 08 Mar 2006 13:23:58 +0000 |
parents | |
children | 0cbe8f6dbf9e |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtomcrypt/src/hashes/helper/hash_file.c Wed Mar 08 13:23:58 2006 +0000 @@ -0,0 +1,57 @@ +/* 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. + * + * Tom St Denis, [email protected], http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file hash_file.c + Hash a file, Tom St Denis +*/ + +/** + @param hash The index of the hash desired + @param fname The name of the file you wish to hash + @param out [out] The destination of the digest + @param outlen [in/out] The max size and resulting size of the message digest + @result CRYPT_OK if successful +*/ +int hash_file(int hash, const char *fname, unsigned char *out, unsigned long *outlen) +{ +#ifdef LTC_NO_FILE + return CRYPT_NOP; +#else + FILE *in; + int err; + LTC_ARGCHK(fname != NULL); + LTC_ARGCHK(out != NULL); + LTC_ARGCHK(outlen != NULL); + + if ((err = hash_is_valid(hash)) != CRYPT_OK) { + return err; + } + + in = fopen(fname, "rb"); + if (in == NULL) { + return CRYPT_FILE_NOTFOUND; + } + + err = hash_filehandle(hash, in, out, outlen); + if (fclose(in) != 0) { + return CRYPT_ERROR; + } + + return err; +#endif +} + + +/* $Source: /cvs/libtom/libtomcrypt/src/hashes/helper/hash_file.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:58 $ */