blob: e40c1477f58c14b7ba4e2265d4c2667ff919e91a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
/* 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@gmail.com, http://libtom.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
(void)hash; (void)fname; (void)out; (void)outlen;
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
}
/* $Source$ */
/* $Revision$ */
/* $Date$ */
|
