Correcting tag name to be like previous ones1_3_0

1 files changed, 75 insertions, 0 deletions

diff --git a/networking/udhcp/common.c b/networking/udhcp/common.c
new file mode 100644
index 0000000..3e916f4
--- /dev/null
+++ b/networking/udhcp/common.c
@@ -0,0 +1,75 @@
+/* vi: set sw=4 ts=4: */
+/* common.c
+ *
+ * Functions for debugging and logging as well as some other
+ * simple helper functions.
+ *
+ * Russ Dill <Russ.Dill@asu.edu> 2001-2003
+ * Rewritten by Vladimir Oleynik <dzo@simtreas.ru> (C) 2003
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+#include <syslog.h>
+
+#include "common.h"
+
+
+long uptime(void)
+{
+	struct sysinfo info;
+	sysinfo(&info);
+	return info.uptime;
+}
+
+/*
+ * This function makes sure our first socket calls
+ * aren't going to fd 1 (printf badness...) and are
+ * not later closed by daemon()
+ */
+static inline void sanitize_fds(void)
+{
+	int fd = xopen(bb_dev_null, O_RDWR);
+	while (fd < 3)
+		fd = dup(fd);
+	close(fd);
+}
+
+
+void udhcp_background(const char *pidfile)
+{
+#ifdef __uClinux__
+	bb_error_msg("cannot background in uclinux (yet)");
+#else /* __uClinux__ */
+	int pid_fd;
+
+	/* hold lock during fork. */
+	pid_fd = pidfile_acquire(pidfile);
+	setsid();
+	xdaemon(0, 0);
+	logmode &= ~LOGMODE_STDIO;
+	pidfile_write_release(pid_fd);
+#endif /* __uClinux__ */
+}
+
+void udhcp_start_log_and_pid(const char *pidfile)
+{
+	int pid_fd;
+
+	/* Make sure our syslog fd isn't overwritten */
+	sanitize_fds();
+
+	/* do some other misc startup stuff while we are here to save bytes */
+	pid_fd = pidfile_acquire(pidfile);
+	pidfile_write_release(pid_fd);
+
+	/* equivelent of doing a fflush after every \n */
+	setlinebuf(stdout);
+
+	if (ENABLE_FEATURE_UDHCP_SYSLOG) {
+		openlog(applet_name, LOG_PID, LOG_LOCAL0);
+		logmode |= LOGMODE_SYSLOG;
+	}
+
+	bb_info_msg("%s (v%s) started", applet_name, BB_VER);
+}