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Diffstat (limited to 'i/pc104/initrd/conf/busybox/coreutils/nohup.c')
-rw-r--r--i/pc104/initrd/conf/busybox/coreutils/nohup.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/i/pc104/initrd/conf/busybox/coreutils/nohup.c b/i/pc104/initrd/conf/busybox/coreutils/nohup.c
new file mode 100644
index 0000000..6a6c70e
--- /dev/null
+++ b/i/pc104/initrd/conf/busybox/coreutils/nohup.c
@@ -0,0 +1,60 @@
+/* vi: set sw=4 ts=4: */
+/* nohup - invoke a utility immune to hangups.
+ *
+ * Busybox version based on nohup specification at
+ * http://www.opengroup.org/onlinepubs/007904975/utilities/nohup.html
+ *
+ * Copyright 2006 Rob Landley <rob@landley.net>
+ * Copyright 2006 Bernhard Fischer
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+#include "busybox.h"
+
+int nohup_main(int argc, char **argv);
+int nohup_main(int argc, char **argv)
+{
+ int nullfd;
+ const char *nohupout;
+ char *home = NULL;
+
+ xfunc_error_retval = 127;
+
+ if (argc < 2) bb_show_usage();
+
+ nullfd = xopen(bb_dev_null, O_WRONLY|O_APPEND);
+ /* If stdin is a tty, detach from it. */
+ if (isatty(STDIN_FILENO))
+ dup2(nullfd, STDIN_FILENO);
+
+ nohupout = "nohup.out";
+ /* Redirect stdout to nohup.out, either in "." or in "$HOME". */
+ if (isatty(STDOUT_FILENO)) {
+ close(STDOUT_FILENO);
+ if (open(nohupout, O_CREAT|O_WRONLY|O_APPEND, S_IRUSR|S_IWUSR) < 0) {
+ home = getenv("HOME");
+ if (home) {
+ nohupout = concat_path_file(home, nohupout);
+ xopen3(nohupout, O_CREAT|O_WRONLY|O_APPEND, S_IRUSR|S_IWUSR);
+ }
+ }
+ } else dup2(nullfd, STDOUT_FILENO);
+
+ /* If we have a tty on stderr, announce filename and redirect to stdout.
+ * Else redirect to /dev/null.
+ */
+ if (isatty(STDERR_FILENO)) {
+ bb_error_msg("appending to %s", nohupout);
+ dup2(STDOUT_FILENO, STDERR_FILENO);
+ } else dup2(nullfd, STDERR_FILENO);
+
+ if (nullfd > 2)
+ close(nullfd);
+ signal(SIGHUP, SIG_IGN);
+
+ BB_EXECVP(argv[1], argv+1);
+ if (ENABLE_FEATURE_CLEAN_UP && home)
+ free((char*)nohupout);
+ bb_perror_msg_and_die("%s", argv[1]);
+}