From 1f460e2de1a2d2bdfaf0f7de19e27654ffa15662 Mon Sep 17 00:00:00 2001
From: Nikita Ivanov <nikita.vyach.ivanov@gmail.com>
Date: Mon, 23 May 2022 23:49:57 +0500
Subject: [PATCH] Allow passing NULL as fds

---
 utils.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/utils.c b/utils.c
index a9c7d6d..d2a8f7c 100644
--- a/utils.c
+++ b/utils.c
@@ -28,12 +28,14 @@ int spawn(char *args[], pid_t *cpid, int *exitcode, int *fds[2])
 
     /* Child process */
     if (pid == 0) {
-        while (*fds) {
-            if (dup2((*fds)[0], (*fds)[1]) == -1) {
-                print_errorf("dup2() failed: %s", strerror(errno));
-                exit(EXIT_FAILURE);
+        if (fds) {
+            while (*fds) {
+                if (dup2((*fds)[0], (*fds)[1]) == -1) {
+                    print_errorf("dup2() failed: %s", strerror(errno));
+                    exit(EXIT_FAILURE);
+                }
+                fds = &fds[1];
             }
-            fds = &fds[1];
         }
 
         execvp(args[0], args);