1 /* fork.c - fork and exec a process, connecting stdin/out w/pipes */
24 if ( pipe( p2c ) != 0 || pipe( c2p ) != 0 ) {
25 Debug( LDAP_DEBUG_ANY, "pipe failed\n", 0, 0, 0 );
30 * what we're trying to set up looks like this:
31 * parent *wfp -> p2c[1] | p2c[0] -> stdin child
32 * parent *rfp <- c2p[0] | c2p[1] <- stdout child
36 switch ( (pid = fork1()) )
38 switch ( (pid = fork()) )
43 * child could deadlock here due to resources locked
46 * If so, configure --without-threads or implement forking
47 * via a surrogate parent.
51 if ( dup2( p2c[0], 0 ) == -1 || dup2( c2p[1], 1 ) == -1 ) {
52 Debug( LDAP_DEBUG_ANY, "dup2 failed\n", 0, 0, 0 );
56 execv( args[0], args );
58 Debug( LDAP_DEBUG_ANY, "execv failed\n", 0, 0, 0 );
61 case -1: /* trouble */
62 Debug( LDAP_DEBUG_ANY, "fork failed\n", 0, 0, 0 );
71 if ( (*rfp = fdopen( c2p[0], "r" )) == NULL || (*wfp = fdopen( p2c[1],
73 Debug( LDAP_DEBUG_ANY, "fdopen failed\n", 0, 0, 0 );