dhcpcd foreground option patch

Zack Winkles winkie at linuxfromscratch.org
Tue Apr 6 09:33:34 PDT 2004


Submitted By: Zack Winkles <winkie AT linuxfromscratch DOT org>
Date: 2004-04-06
Initial Package Version: 1.3.22-pl4
Upstream Status: Not submitted
Origin: N/A
Description: Add flag to permit starting of dhcpcd(8) in the foreground.

diff -Naur dhcpcd-1.3.22-pl4.orig/dhcpcd.8 dhcpcd-1.3.22-pl4/dhcpcd.8
--- dhcpcd-1.3.22-pl4.orig/dhcpcd.8	2002-12-31 20:31:31.000000000 -0500
+++ dhcpcd-1.3.22-pl4/dhcpcd.8	2004-04-05 20:19:58.971910368 -0400
@@ -9,7 +9,7 @@
 .in +.5i
 .ti -.5i
 dhcpcd
-\%[\-dknrBCDHNRSTY]
+\%[\-dfknrBCDHNRSTY]
 \%[\-t\ <timeout>]
 \%[\-c\ <ExecFilePath>]
 \%[-h\ <hostname>]
@@ -66,6 +66,11 @@
 kill -1 `cat /var/run/syslogd.pid`
 
 .TP
+.BI \-f
+Tells
+.B dhcpcd
+not to fork into the background.
+.TP
 .BI \-k
 Sends
 .B SIGHUP
diff -Naur dhcpcd-1.3.22-pl4.orig/dhcpcd.c dhcpcd-1.3.22-pl4/dhcpcd.c
--- dhcpcd-1.3.22-pl4.orig/dhcpcd.c	2002-12-31 20:26:32.000000000 -0500
+++ dhcpcd-1.3.22-pl4/dhcpcd.c	2004-04-05 20:20:16.287278032 -0400
@@ -104,6 +104,7 @@
 {
   int killFlag		=	0;
   int versionFlag	=	0;
+  int foreground	=	0;
   int s			=	1;
   int k			=	1;
   int i			=	1;
@@ -145,6 +146,10 @@
 	    s++;
 	    DebugFlag=1;
 	    goto prgs;
+	  case 'f':
+	    s++;
+	    foreground=1;
+	    goto prgs;
 	  case 'r':
 	    s++;
 	    BeRFC1541=1;
@@ -325,7 +330,7 @@
           default:
 usage:	    print_version();
 	    fprintf(stderr,
-"Usage: dhcpcd [-dknrBCDHNRSTY] [-l leasetime] [-h hostname] [-t timeout]\n\
+"Usage: dhcpcd [-dfknrBCDHNRSTY] [-l leasetime] [-h hostname] [-t timeout]\n\
        [-i vendorClassID] [-I ClientID] [-c filename] [-s [ipaddr]]\n\
        [-w windowsize] [-L ConfigDir] [-G [gateway]] [interface]\n");
 	    exit(1);
@@ -375,19 +380,22 @@
   if ( TestCase ) exit(0);
 #endif
   alarm(0);
-#ifdef DEBUG
-  writePidFile(getpid());
-#else
+
+  if (foreground)
+    writePidFile(getpid());
+  else {
 #ifdef EMBED
-  s=vfork();
+    s=vfork();
 #else
-  s=fork();
+    s=fork();
 #endif
-  if ( s )
-    {
-      writePidFile(s);
-      exit(0); /* got into bound state. */
-    }
+    if ( s )
+      {
+	writePidFile(s);
+	exit(0); /* got into bound state. */
+      }
+  }
+
   setsid();
   if ( (i=open("/dev/null",O_RDWR,0)) >= 0 )
     {
@@ -396,7 +404,6 @@
       (void)dup2(i,STDERR_FILENO);
       if ( i > 2 ) (void)close(i);
     }
-#endif
   chdir("/");
   do currState=(void *(*)())currState(); while ( currState );
   deletePidFile();


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