From 5ba3cb56c2832f5885bd05be9ed88a9434451c21 Mon Sep 17 00:00:00 2001
From: Aki <please@ignore.pl>
Date: Fri, 8 May 2020 17:02:31 +0200
Subject: Server socket should be now reusable

---
 plop.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'plop.c')

diff --git a/plop.c b/plop.c
index d676c4f..e90c3b0 100644
--- a/plop.c
+++ b/plop.c
@@ -36,6 +36,7 @@ int make_server(const char * node, const char * service)
 	}
 
 	int server;
+	int optval = 1;
 
 	for (it = result; it != NULL; it = it->ai_next)
 	{
@@ -44,6 +45,12 @@ int make_server(const char * node, const char * service)
 		if (-1 == server)
 			continue;
 
+		if (-1 == setsockopt(server, SOL_SOCKET, SO_REUSEADDR, (char *) &optval, sizeof(optval)))
+		{
+			close(server);
+			continue;
+		}
+
 		if (-1 == fcntl(server, F_SETFL, (fcntl(server, F_GETFL, 0) | O_NONBLOCK)))
 		{
 			close(server);
@@ -177,6 +184,11 @@ int main(int argc, char ** argv)
 	fdv[0].events = POLLIN;
 	fdc++;
 
+	if (-1 == fdv[0].fd)
+	{
+		return 1; // TODO: Document error codes/print usage information
+	}
+
 	while (0 < fdc && -1 != poll(fdv, fdc, -1))
 	{
 		int shift_by = 0;
-- 
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