[dhcp-agent-commits] dhcp-agent/src dhcp-daemon.c,1.5,1.6

[<act...@us...>]

Update of /cvsroot/dhcp-agent/dhcp-agent/src
In directory sc8-pr-cvs1:/tmp/cvs-serv1545/src

Modified Files:
	dhcp-daemon.c 
Log Message:
added routine to fork helper child

Index: dhcp-daemon.c
===================================================================
RCS file: /cvsroot/dhcp-agent/dhcp-agent/src/dhcp-daemon.c,v
retrieving revision 1.5
retrieving revision 1.6
diff -C2 -d -r1.5 -r1.6
*** dhcp-daemon.c	25 May 2003 02:18:46 -0000	1.5
--- dhcp-daemon.c	17 Jul 2003 13:12:54 -0000	1.6
***************
*** 209,210 ****
--- 209,251 ----
      return;
  }
+ 
+ int fork_and_exec(const char *path_to_exec)
+ {
+     int fdpair[2];
+ 
+     /* open socket pair. */
+     if(socketpair(PF_UNIX, SOCK_STREAM, 0, fdpair) == -1) {
+         return -1;
+     }
+ 
+     /* fork out. */
+     switch(fork()) {
+ 
+     case 0: /* child. */
+ 
+         /* close up stdin, stdout, stderr. */
+ 
+         close(0);
+         close(1);
+         close(2);
+ 
+         dup2(fdpair[1], 0);
+         dup2(fdpair[1], 1);
+         dup2(fdpair[1], 2);
+         close(fdpair[0]);
+         execl(path_to_exec, NULL);
+ 
+         /* we should never get here unless something is
+          * tragically broken. */
+ 
+         exit(1);
+ 
+     case -1: /* error. */
+         return -1;
+ 
+     default: /* parent. */
+ 
+         close(fdpair[1]);
+         return fdpair[0];
+     }
+ }