rfkilld

commit 398d2905b1b9bef02c7b11c687a408036da2c212
parent 0c6b4c7a43f3ecec86d7d43f2cb81f3ebe5f5dec
Author: Christoph Lohmann <20h@r-36.net>
Date:   Tue,  1 Mar 2011 07:32:51 +0100

Set nonblocking for poll.

Diffstat:
rfkilld.c
 | 
19
+++++++++++++++++++

1 file changed, 19 insertions(+), 0 deletions(-)
diff --git a/rfkilld.c b/rfkilld.c
@@ -18,6 +18,7 @@
 #include <sys/wait.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <fcntl.h>
 
 #include "arg.h"
 
@@ -26,6 +27,20 @@ char *etcdir = "/etc/rfkilld";
 int running = 1;
 int dolog = 0;
 
+int
+setnonblocking(int fd)
+{
+	int flags;
+
+	flags = fcntl(fd, F_GETFL);
+	if (flags < 0)
+		return 1;
+	if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0)
+		return 1;
+
+	return 0;
+}
+
 void
 runifexecutable(char *file, char *oname, char *ostate)
 {
@@ -152,6 +167,10 @@ main(int argc, char *argv[])
 
 	fds[0].fd = udev_monitor_get_fd(mon);
 	fds[0].events = POLLIN|POLLPRI;
+	if (setnonblocking(fds[0].fd)) {
+		perror("setnonblocking");
+		exit(EXIT_FAILURE);
+	}
 	while(running) {
 		ret = poll(fds, 1, -1);
 		if (ret > 0) {