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-rw-r--r--src/daemon.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/src/daemon.c b/src/daemon.c
index 09cd5721a..569494908 100644
--- a/src/daemon.c
+++ b/src/daemon.c
@@ -24,6 +24,32 @@
#include <unistd.h>
#include <errno.h>
#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+void
+daemonize_close_stdin(void)
+{
+ int fd, st;
+ struct stat ss;
+
+ if ((st = fstat(STDIN_FILENO, &ss)) < 0) {
+ if ((fd = open("/dev/null", O_RDONLY) > 0)) {
+ g_debug("stdin closed, and could not open /dev/null "
+ "as fd=0, some external library bugs "
+ "may be exposed...");
+ close(fd);
+ }
+ return;
+ }
+ if (!isatty(STDIN_FILENO))
+ return;
+ if ((fd = open("/dev/null", O_RDONLY)) < 0)
+ g_error("failed to open /dev/null %s", strerror(errno));
+ if (dup2(fd, STDIN_FILENO) < 0)
+ g_error("dup2 stdin: %s", strerror(errno));
+}
void
daemonize(Options *options)