From 9156c848f5f4e2d874be52533b01244738ca5bf3 Mon Sep 17 00:00:00 2001
From: Packit Service <user-cont-team+packit-service@redhat.com>
Date: Dec 09 2020 07:26:28 +0000
Subject: Apply patch acpid-2.0.28-kacpimon-dynamic-connections.patch


patch_name: acpid-2.0.28-kacpimon-dynamic-connections.patch
present_in_specfile: true

---

diff --git a/kacpimon/connection_list.c b/kacpimon/connection_list.c
index 9b0b0a8..f228186 100644
--- a/kacpimon/connection_list.c
+++ b/kacpimon/connection_list.c
@@ -22,6 +22,7 @@
 
 #include <unistd.h>
 #include <stdio.h>
+#include <stdlib.h>
 
 #include "connection_list.h"
 
@@ -30,9 +31,9 @@
 /*---------------------------------------------------------------*/
 /* private objects */
 
-#define MAX_CONNECTIONS 20
+static int capacity = 0;
 
-static struct connection connection_list[MAX_CONNECTIONS];
+static struct connection *connection_list = NULL;
 
 static int nconnections = 0;
 
@@ -51,9 +52,19 @@ add_connection(struct connection *p)
 {
 	if (nconnections < 0)
 		return;
-	if (nconnections >= MAX_CONNECTIONS) {
-		printf("add_connection(): Too many connections.\n");
-		return;
+
+	/* if the list is full, allocate more space */
+	if (nconnections >= capacity) {
+		/* no more than 1024 */
+		if (capacity > 1024) {
+			printf("add_connection(): Too many connections.\n");
+			return;
+		}
+
+		/* another 20 */
+		capacity += 20;
+		connection_list =
+			realloc(connection_list, sizeof(struct connection) * capacity);
 	}
 
 	if (nconnections == 0)
@@ -70,6 +81,30 @@ add_connection(struct connection *p)
 
 /*---------------------------------------------------------------*/
 
+void
+delete_all_connections(void)
+{
+	int i = 0;
+
+	/* For each connection */
+	for (i = 0; i <= get_number_of_connections(); ++i)
+	{
+		struct connection *p;
+
+		p = get_connection(i);
+
+		/* If this connection is invalid, try the next. */
+		if (p == 0)
+			continue;
+
+		close(p -> fd);
+	}
+	free(connection_list);
+	connection_list = NULL;
+}
+
+/*---------------------------------------------------------------*/
+
 struct connection *
 find_connection(int fd)
 {
diff --git a/kacpimon/connection_list.h b/kacpimon/connection_list.h
index 1d037cf..a787637 100644
--- a/kacpimon/connection_list.h
+++ b/kacpimon/connection_list.h
@@ -56,4 +56,7 @@ extern const fd_set *get_fdset(void);
 /* get the highest fd that was added to the list */
 extern int get_highestfd(void);
 
+/* delete all connections, closing the fds */
+extern void delete_all_connections(void);
+
 #endif /* CONNECTION_LIST_H__ */
diff --git a/kacpimon/kacpimon.c b/kacpimon/kacpimon.c
index 1ddb9aa..253d270 100644
--- a/kacpimon/kacpimon.c
+++ b/kacpimon/kacpimon.c
@@ -164,27 +164,6 @@ static void monitor(void)
 
 // ---------------------------------------------------------------
 
-static void close_all(void)
-{
-	int i = 0;
-
-	/* For each connection */
-	for (i = 0; i <= get_number_of_connections(); ++i)
-	{
-		struct connection *p;
-
-		p = get_connection(i);
-
-		/* If this connection is invalid, try the next. */
-		if (p == 0)
-			continue;
-
-		close(p -> fd);
-	}
-}
-
-// ---------------------------------------------------------------
-
 int main(void)
 {
 	printf("Kernel ACPI Event Monitor...\n");
@@ -199,7 +178,7 @@ int main(void)
 
 	printf("Closing files...\n");
 
-	close_all();
+	delete_all_connections();
 
 	printf("Goodbye\n");