Added updetach option.

[ppp.git] / pppd / main.c

diff --git a/pppd/main.c b/pppd/main.c
index b11ed66a3a1dbdd1791556a498ce96100ee64ded..eec19c760398d598ca9eb8e7650f295db0d9101a 100644 (file)
--- a/pppd/main.c
+++ b/pppd/main.c
@@ -18,7 +18,7 @@
  */
 
 #ifndef lint
-static char rcsid[] = "$Id: main.c,v 1.45 1998/03/25 01:28:14 paulus Exp $";
+static char rcsid[] = "$Id: main.c,v 1.46 1998/03/26 04:46:04 paulus Exp $";
 #endif
 
 #include <stdio.h>
@@ -85,11 +85,11 @@ int baud_rate;                      /* Actual bits/second for serial device */
 int hungup;                    /* terminal has been hung up */
 int privileged;                        /* we're running as real uid root */
 int need_holdoff;              /* need holdoff period before restarting */
+int detached;                  /* have detached from terminal */
 
 int phase;                     /* where the link is at */
 int kill_link;
 int open_ccp_flag;
-int redirect_stderr;           /* Connector's stderr should go to file */
 
 char **script_env;             /* Env. variable values for scripts */
 int s_env_nalloc;              /* # words avail at script_env */
@@ -256,7 +256,8 @@ main(argc, argv)
      */
     if (!default_device && strcmp(devnam, default_devnam) == 0)
        default_device = 1;
-    redirect_stderr = !nodetach || default_device;
+    if (default_device)
+       nodetach = 1;
 
     /*
      * Initialize system-dependent stuff and magic number package.
@@ -270,10 +271,8 @@ main(argc, argv)
      * Detach ourselves from the terminal, if required,
      * and identify who is running us.
      */
-    if (!default_device && !nodetach && daemon(0, 0) < 0) {
-       perror("Couldn't detach from controlling terminal");
-       exit(1);
-    }
+    if (nodetach == 0)
+       detach();
     pid = getpid();
     p = getlogin();
     if (p == NULL) {
@@ -624,6 +623,21 @@ main(argc, argv)
     return 0;
 }
 
+/*
+ * detach - detach us from the controlling terminal.
+ */
+void
+detach()
+{
+    if (detached)
+       return;
+    if (daemon(0, 0) < 0) {
+       perror("Couldn't detach from controlling terminal");
+       die(1);
+    }
+    detached = 1;
+}
+
 /*
  * holdoff_end - called via a timeout when the holdoff period ends.
  */
@@ -1068,7 +1082,7 @@ device_script(program, in, out)
                close(out);
            }
        }
-       if (redirect_stderr) {
+       if (nodetach == 0) {
            close(2);
            errfd = open(_PATH_CONNERRS, O_WRONLY | O_APPEND | O_CREAT, 0600);
            if (errfd >= 0 && errfd != 2) {