From 9d6394679f075992b9902a7a3b4c2fe61819cb43 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Gomez?= <bip@kyoshiro.org>
Date: Sun, 9 Jan 2022 18:25:44 +0100
Subject: [PATCH] sanitize: check return value

---
 src/bip_main.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/bip_main.c b/src/bip_main.c
index 0241b3d..8582d34 100644
--- a/src/bip_main.c
+++ b/src/bip_main.c
@@ -296,7 +296,10 @@ int main(int argc, char **argv)
 	else
 		pid = getpid();
 	snprintf(buf, (size_t) 29, "%lu\n", (unsigned long int)pid);
-	write(fd, buf, strlen(buf));
+	ssize_t written;
+	written = write(fd, buf, strlen(buf));
+	if (written <= 0)
+		mylog(LOG_ERROR, "Could not write to PID file");
 	close(fd);
 
 	bip.listener = listen_new(conf_ip, conf_port, conf_css);