0a432b6b08
when LTC_NO_FILE is defined, the functions hash_filehandle() and hash_file() won't be available at all instead of returning CRYPT_NOP
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*
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* Tom St Denis, tomstdenis@gmail.com, http://libtom.org
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*/
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#include "tomcrypt.h"
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#ifndef LTC_NO_FILE
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/**
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@file hash_file.c
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Hash a file, Tom St Denis
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*/
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/**
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@param hash The index of the hash desired
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@param fname The name of the file you wish to hash
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@param out [out] The destination of the digest
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@param outlen [in/out] The max size and resulting size of the message digest
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@result CRYPT_OK if successful
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*/
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int hash_file(int hash, const char *fname, unsigned char *out, unsigned long *outlen)
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{
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FILE *in;
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int err;
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LTC_ARGCHK(fname != NULL);
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LTC_ARGCHK(out != NULL);
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LTC_ARGCHK(outlen != NULL);
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if ((err = hash_is_valid(hash)) != CRYPT_OK) {
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return err;
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}
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in = fopen(fname, "rb");
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if (in == NULL) {
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return CRYPT_FILE_NOTFOUND;
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}
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err = hash_filehandle(hash, in, out, outlen);
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if (fclose(in) != 0) {
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return CRYPT_ERROR;
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}
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return err;
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}
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#endif /* #ifndef LTC_NO_FILE */
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/* $Source$ */
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/* $Revision$ */
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/* $Date$ */
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