From 4cda4ca18962c9f118adae1d5a1ad5bcd2b4eda4 Mon Sep 17 00:00:00 2001
From: van Hauser <vh@thc.org>
Date: Tue, 25 Jun 2019 12:52:07 +0200
Subject: [PATCH] added -K no redo switch

---
 CHANGES | 1 +
 hydra.c | 8 +++++++-
 hydra.h | 1 +
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/CHANGES b/CHANGES
index 627882f..33247a5 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3,6 +3,7 @@ Changelog for hydra
 
 Release 9.1-dev
 * your patch? :)
+* added -K command line switch to disable redo attempts (good for mass scanning)
 * forgot to have the -m option in the hydra help output
 
 
diff --git a/hydra.c b/hydra.c
index 756ddb4..23f0061 100644
--- a/hydra.c
+++ b/hydra.c
@@ -508,6 +508,7 @@ void help(int32_t ext) {
                     "  -4 / -6   use IPv4 (default) / IPv6 addresses (put always in [] also in -M)\n"
                     "  -v / -V / -d  verbose mode / show login+pass for each attempt / debug mode \n"
                     "  -O        use old SSL v2 and v3\n"
+                    "  -K        do not redo failed attempts (good for -M mass scanning)\n"
                     "  -q        do not print messages about connection errors\n",
                MAXTASKS, WAITTIME, conwait
                );
@@ -1397,6 +1398,7 @@ void hydra_increase_fail_count(int32_t target_no, int32_t head_no) {
     if (k <= 1) {
       // we need to put this in a list, otherwise we fail one login+pw test
       if (hydra_targets[target_no]->done == TARGET_ACTIVE
+          && hydra_options.skip_redo == 0
           && hydra_targets[target_no]->redo <= hydra_options.max_use * 2
           && ((hydra_heads[head_no]->current_login_ptr != empty_login && hydra_heads[head_no]->current_pass_ptr != empty_login)
               || (hydra_heads[head_no]->current_login_ptr != NULL && hydra_heads[head_no]->current_pass_ptr != NULL))) {
@@ -1429,6 +1431,7 @@ void hydra_increase_fail_count(int32_t target_no, int32_t head_no) {
     } else {
       // we need to put this in a list, otherwise we fail one login+pw test
       if (hydra_targets[target_no]->done == TARGET_ACTIVE
+          && hydra_options.skip_redo == 0
           && hydra_targets[target_no]->redo <= hydra_options.max_use * 2
           && ((hydra_heads[head_no]->current_login_ptr != empty_login && hydra_heads[head_no]->current_pass_ptr != empty_login)
               || (hydra_heads[head_no]->current_login_ptr != NULL && hydra_heads[head_no]->current_pass_ptr != NULL))) {
@@ -2220,7 +2223,7 @@ int main(int argc, char *argv[]) {
     help(1);
   if (argc < 2)
     help(0);
-  while ((i = getopt(argc, argv, "hIq64Rde:vVl:fFg:L:p:OP:o:b:M:C:t:T:m:w:W:s:SUux:yc:")) >= 0) {
+  while ((i = getopt(argc, argv, "hIq64Rde:vVl:fFg:L:p:OP:o:b:M:C:t:T:m:w:W:s:SUux:yc:K")) >= 0) {
     switch (i) {
     case 'h':
       help(1);
@@ -2228,6 +2231,9 @@ int main(int argc, char *argv[]) {
     case 'q':
       quiet = 1;
       break;
+    case 'K':
+      hydra_options.skip_redo = 1;
+      break;
     case 'O':
       old_ssl = 1;
       break;
diff --git a/hydra.h b/hydra.h
index e12fdfe..2d6a35b 100644
--- a/hydra.h
+++ b/hydra.h
@@ -213,6 +213,7 @@ typedef struct {
   char *server;
   char *service;
   char bfg;
+  int32_t skip_redo;
 } hydra_option;
 
 #define _HYDRA_H