1 files changed, 48 insertions, 0 deletions
diff --git a/util/sbase/nohup.c b/util/sbase/nohup.c
new file mode 100644
index 00000000..5c1bf448
--- /dev/null
+++ b/util/sbase/nohup.c
@@ -0,0 +1,48 @@
+/* See LICENSE file for copyright and license details. */
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include "util.h"
+
+static void
+usage(void)
+{
+	eprintf("usage: %s cmd [arg ...]\n", argv0);
+}
+
+int
+main(int argc, char *argv[])
+{
+	int fd, savederrno;
+
+	ARGBEGIN {
+	default:
+		usage();
+	} ARGEND
+
+	if (!argc)
+		usage();
+
+	if (signal(SIGHUP, SIG_IGN) == SIG_ERR)
+		enprintf(127, "signal HUP:");
+
+	if (isatty(STDOUT_FILENO)) {
+		if ((fd = open("nohup.out", O_WRONLY | O_APPEND | O_CREAT, S_IRUSR | S_IWUSR)) < 0)
+			enprintf(127, "open nohup.out:");
+		if (dup2(fd, STDOUT_FILENO) < 0)
+			enprintf(127, "dup2:");
+		close(fd);
+	}
+	if (isatty(STDERR_FILENO) && dup2(STDOUT_FILENO, STDERR_FILENO) < 0)
+		enprintf(127, "dup2:");
+
+	execvp(argv[0], argv);
+	savederrno = errno;
+	weprintf("execvp %s:", argv[0]);
+
+	_exit(126 + (savederrno == ENOENT));
+}