From: Francois Fleuret <francois@fleuret.org>
Date: Thu, 18 Oct 2018 05:43:22 +0000 (+0200)
Subject: Fixed a crashing bug
X-Git-Url: https://www.fleuret.org/cgi-bin/gitweb/gitweb.cgi?p=finddup.git;a=commitdiff_plain;h=75a53596aff9a5b29a808b7f29dfc80925d2627c

Fixed a crashing bug

There was a segfault generating bug when estimating the maximum group size in exec_command.
---

diff --git a/finddup.c b/finddup.c
index 6f6af38..7f22313 100644
--- a/finddup.c
+++ b/finddup.c
@@ -337,7 +337,7 @@ void exec_command(int nb, struct file_node **nodes) {
   pid_t pid;
 
   for(n = 0; n < nb; n++) {
-    if(nodes[n]->group_id != nodes[n-1]->group_id) {
+    if(n > 0 && nodes[n]->group_id != nodes[n-1]->group_id) {
       group_size = 0;
     }
     group_size++;