tomcrypt/hash_file.c
2010-06-16 12:38:11 +02:00

42 lines
914 B
C

/* 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, tomstdenis@iahu.ca, http://libtomcrypt.org
*/
#include "mycrypt.h"
int hash_file(int hash, const char *fname, unsigned char *dst, unsigned long *outlen)
{
#ifdef NO_FILE
return CRYPT_NOP;
#else
FILE *in;
int err;
_ARGCHK(fname != NULL);
_ARGCHK(dst != NULL);
_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, dst, outlen);
if (fclose(in) != 0) {
return CRYPT_ERROR;
}
return err;
#endif
}