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];
+ }
+ }
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