From 0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Sat, 12 Feb 2011 00:22:29 -0500 Subject: initial check-in, version 0.5.0 --- src/linux/daemon.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 src/linux/daemon.c (limited to 'src/linux/daemon.c') 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 +#include + +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; +} -- cgit v1.2.1