From 5e33b1c6c34449b334ac97309e56e604276cfa05 Mon Sep 17 00:00:00 2001
From: andreastaliad <it2023071@hua.gr>
Date: Mon, 25 May 2026 15:16:30 +0300
Subject: [PATCH] removed script from kill group

---
 fork_bomb/fork_bomb.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/fork_bomb/fork_bomb.c b/fork_bomb/fork_bomb.c
index 953a27e..5daf7b2 100644
--- a/fork_bomb/fork_bomb.c
+++ b/fork_bomb/fork_bomb.c
@@ -7,6 +7,7 @@
 #include <ctype.h>
 #include <time.h>
 #include <signal.h>
+#include <termios.h>
 
 
 #define DEFAULT_NUM_LEN 512
@@ -276,6 +277,13 @@ int main(void)
   sigaction(SIGINT, &sa, NULL);
 
   pid_t fork_pgid = getpgrp();
+  int owns_pgrp = 0;
+  if (!isatty(STDIN_FILENO) || tcgetpgrp(STDIN_FILENO) != fork_pgid) {
+    if (setpgid(0, 0) == 0) {
+      fork_pgid = getpgrp();
+      owns_pgrp = 1;
+    }
+  }
   fprintf(csv, "timestamp,elapsed_s,load1,load5,load15,mem_total_kb,mem_available_kb,mem_used_kb,proc_count,thread_count_total,pid,cpu_pct,sys_cpu_pct,forks_per_sec,rss_kb,vsz_kb,stack_kb,heap_kb,proc_threads\n");
 
   long count = 0;
@@ -370,9 +378,11 @@ int main(void)
     }
   }
 
-  signal(SIGTERM, SIG_IGN);
-  signal(SIGINT, SIG_IGN);
-  killpg(fork_pgid, SIGTERM);
+  if (owns_pgrp) {
+    signal(SIGTERM, SIG_IGN);
+    signal(SIGINT, SIG_IGN);
+    killpg(fork_pgid, SIGTERM);
+  }
 
   fclose(csv);