X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=tfcrypt.c;h=d673d386e7757cf739ffc35fbf35283476b39e3b;hb=f761a53231d1a023e2d3e5efcc5591b04a34f98a;hp=7e9ef8c16915ddb15f7a718516f0ca9cdd518730;hpb=335d0464d6ea90d5f30e6846e3142c287e0d582c;p=tfcrypt.git

diff --git a/tfcrypt.c b/tfcrypt.c
index 7e9ef8c..d673d38 100644
--- a/tfcrypt.c
+++ b/tfcrypt.c
@@ -2,7 +2,7 @@
  * tfcrypt -- high security Threefish encryption tool.
  *
  * tfcrypt is copyrighted:
- * Copyright (C) 2012-2018 Andrey Rys. All rights reserved.
+ * Copyright (C) 2012-2019 Andrey Rys. All rights reserved.
  *
  * tfcrypt is licensed to you under the terms of std. MIT/X11 license:
  *
@@ -149,6 +149,29 @@ _baddfname:
 					counter_opt = TFC_CTR_RAND;
 				else if (!strcasecmp(optarg, "zero"))
 					counter_opt = TFC_CTR_ZERO;
+				else if (strchr(optarg, ':')) {
+					char *ss, chr;
+
+					counter_opt = TFC_CTR_SSET;
+					n = sizeof(ctr);
+
+					s = d = optarg; t = NULL;
+					while ((s = strtok_r(d, ",", &t))) {
+						if (d) d = NULL;
+
+						if (n == 0) break;
+						ss = strchr(s, ':');
+						if (!ss) continue;
+						*ss = 0; ss++;
+						chr = (char)strtoul(s, &stoi, 16);
+						if (!str_empty(stoi)) continue;
+						x = (size_t)strtoul(ss, &stoi, 10);
+						if (!str_empty(stoi)) continue;
+						if (x > n) x = n;
+						memset(ctr+(sizeof(ctr)-n), (int)chr, x);
+						n -= x;
+					}
+				}
 				else counter_file = sksum_hashlist_file = optarg;
 				break;
 			case 'C':