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>
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 $ */