From: Jason Self <j@jxself.org>
Date: Tue, 15 Sep 2015 21:59:31 +0000 (-0700)
Subject: HashMatch: do return values more strict.
X-Git-Url: https://jxself.org/git/?p=skeinsum.git;a=commitdiff_plain;h=ff93bbdae2026ff865e07c05450560d0594d935a

HashMatch: do return values more strict.
---

diff --git a/skein_cli.c b/skein_cli.c
index c8ae45b..0ab8408 100644
--- a/skein_cli.c
+++ b/skein_cli.c
@@ -210,6 +210,7 @@ void HashStdin(int tag)
 	}
 }
 
+/* Return: -1 = Error, 0 = Mismatch, 1 = Match */
 int HashMatch(const char StoredDigest[], const char *filename, int quiet)
 {
 	char mode = 't';
@@ -220,17 +221,19 @@ int HashMatch(const char StoredDigest[], const char *filename, int quiet)
 	
 	char MsgDigest[hashbitlen/2];
 	if (HashWithMode(filename, MsgDigest, mode) < 0)
-		return 0;
+		return -1;
 
 	if (strcmp(MsgDigest, StoredDigest)) {
 		printf("%s: FAILED\n", filename);
 		return 0;
 	}
+
 	if (quiet > 0)
 		printf("%s: OK\n", filename);
 	return 1;
 }
 
+/* Return: -1 = some errors/mismatches, 1 = all ok */
 int VerifyHashesFromFile(FILE *fp, int status, int warn, int quiet)
 {
 	char hash[PATH_MAX + hashbitlen/4 + 4];
@@ -263,7 +266,7 @@ int VerifyHashesFromFile(FILE *fp, int status, int warn, int quiet)
 			NotProper ++;
 			NoMatch ++;
 		}
-		else if (!HashMatch(MsgDigest_tmp, file_tmp, quiet))
+		else if (HashMatch(MsgDigest_tmp, file_tmp, quiet) <= 0)
 		{
 			NoMatch++;
 		}