File mcstrans-writepid.patch of Package mcstrans

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File mcstrans-writepid.patch of Package mcstrans

Index: mcstrans-2.9/src/mcstransd.c
===================================================================
--- mcstrans-2.9.orig/src/mcstransd.c	2019-03-21 08:39:36.020981841 +0100
+++ mcstrans-2.9/src/mcstransd.c	2019-03-21 08:43:15.456387335 +0100
@@ -14,6 +14,7 @@
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+#include <fcntl.h>
 #include <sys/uio.h>
 #include <sys/un.h>
 #include "mcstrans.h"
@@ -59,10 +60,12 @@ extern int raw_color(const security_cont
 
 static int sockfd = -1;	/* socket we are listening on */
 
+static const char *pidfile = "/var/run/mcstransd.pid";
+
 static volatile int restart_daemon = 0;
 static void cleanup_exit(int ret) __attribute__ ((noreturn));
 static void
-cleanup_exit(int ret) 
+cleanup_exit(int ret)
 {
 	finish_context_colors();
 	finish_context_translations();
@@ -221,7 +224,7 @@ service_request(int fd)
 	data1 = malloc(data1_size);
 	if (!data1) {
 		log_debug("Could not allocate %d bytes\n", data1_size);
-		return -1; 
+		return -1;
 	}
 	data2 = malloc(data2_size);
 	if (!data2) {
@@ -532,6 +535,28 @@ static void usage(char *program)
 	printf("%s [-f] [-h] \n", program);
 }
 
+static int write_pid_file(void)
+{
+	int pidfd, len;
+	char val[16];
+
+	len = snprintf(val, sizeof(val), "%u\n", getpid());
+	if (len < 0) {
+		syslog(LOG_ERR, "Pid error (%s)", strerror(errno));
+		pidfile = 0;
+		return 1;
+	}
+	pidfd = open(pidfile, O_CREAT | O_TRUNC | O_NOFOLLOW | O_WRONLY, 0644);
+	if (pidfd < 0) {
+		syslog(LOG_ERR, "Unable to set pidfile (%s)", strerror(errno));
+		pidfile = 0;
+		return 1;
+	}
+	(void)write(pidfd, val, (unsigned int)len);
+	close(pidfd);
+	return 0;
+}
+
 int
 main(int argc, char *argv[])
 {
@@ -575,6 +600,8 @@ main(int argc, char *argv[])
 	}
 #endif
 
+	write_pid_file();
+
 	syslog(LOG_NOTICE, "%s initialized", argv[0]);
 	process_connections();

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File mcstrans-writepid.patch of Package mcstrans

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