initial check-in, version 0.5.0 v0.5.0

1 files changed, 31 insertions, 0 deletions

diff --git a/src/linux/daemon.c b/src/linux/daemon.c
new file mode 100644
index 00000000..632d1203
--- /dev/null
+++ b/src/linux/daemon.c
@@ -0,0 +1,31 @@
+#include <fcntl.h>
+#include <unistd.h>
+
+int daemon(int nochdir, int noclose)
+{
+	int fd;
+
+	switch(fork()) {
+	case 0: break;
+	case -1: return -1;
+	default: _exit(0);
+	}
+
+	if (setsid() < 0) return -1;
+
+	switch(fork()) {
+	case 0: break;
+	case -1: return -1;
+	default: _exit(0);
+	}
+
+	if (!nochdir) chdir("/");
+	if (!noclose && (fd = open("/dev/null", O_RDWR)) >= 0) {
+		dup2(fd, 0);
+		dup2(fd, 1);
+		dup2(fd, 2);
+		if (fd > 2) close(fd);
+	}
+
+	return 0;
+}