17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
37c478bd9Sstevel@tonic-gate * Use is subject to license terms.
47c478bd9Sstevel@tonic-gate */
58d489c7aSmuffin
67c478bd9Sstevel@tonic-gate /*
77c478bd9Sstevel@tonic-gate * Copyright (c) 1983 Regents of the University of California.
87c478bd9Sstevel@tonic-gate * All rights reserved. The Berkeley software License Agreement
97c478bd9Sstevel@tonic-gate * specifies the terms and conditions for redistribution.
107c478bd9Sstevel@tonic-gate */
117c478bd9Sstevel@tonic-gate
128d489c7aSmuffin #include "tip.h"
137c478bd9Sstevel@tonic-gate
14*1e094e1bSToomas Soome char *uucplock;
157c478bd9Sstevel@tonic-gate static sigjmp_buf deadline;
167c478bd9Sstevel@tonic-gate static int deadfl;
177c478bd9Sstevel@tonic-gate
187c478bd9Sstevel@tonic-gate void
dead(void)198d489c7aSmuffin dead(void)
207c478bd9Sstevel@tonic-gate {
217c478bd9Sstevel@tonic-gate
227c478bd9Sstevel@tonic-gate deadfl = 1;
237c478bd9Sstevel@tonic-gate siglongjmp(deadline, 1);
247c478bd9Sstevel@tonic-gate }
257c478bd9Sstevel@tonic-gate
268d489c7aSmuffin int
hunt(char * name)278d489c7aSmuffin hunt(char *name)
287c478bd9Sstevel@tonic-gate {
298d489c7aSmuffin char *cp;
308d489c7aSmuffin sig_handler_t f;
317c478bd9Sstevel@tonic-gate
327c478bd9Sstevel@tonic-gate f = signal(SIGALRM, (sig_handler_t)dead);
337c478bd9Sstevel@tonic-gate while (cp = getremote(name)) {
347c478bd9Sstevel@tonic-gate deadfl = 0;
357c478bd9Sstevel@tonic-gate uucplock = cp;
368d489c7aSmuffin if (tip_mlock(uucplock) < 0) {
377c478bd9Sstevel@tonic-gate delock(uucplock);
387c478bd9Sstevel@tonic-gate continue;
397c478bd9Sstevel@tonic-gate }
407c478bd9Sstevel@tonic-gate /*
417c478bd9Sstevel@tonic-gate * Straight through call units, such as the BIZCOMP,
427c478bd9Sstevel@tonic-gate * VADIC and the DF, must indicate they're hardwired in
437c478bd9Sstevel@tonic-gate * order to get an open file descriptor placed in FD.
447c478bd9Sstevel@tonic-gate * Otherwise, as for a DN-11, the open will have to
457c478bd9Sstevel@tonic-gate * be done in the "open" routine.
467c478bd9Sstevel@tonic-gate */
477c478bd9Sstevel@tonic-gate if (!HW)
487c478bd9Sstevel@tonic-gate break;
497c478bd9Sstevel@tonic-gate if (sigsetjmp(deadline, 1) == 0) {
508d489c7aSmuffin (void) alarm(10);
517c478bd9Sstevel@tonic-gate if (!trusted_device)
527c478bd9Sstevel@tonic-gate userperm();
537c478bd9Sstevel@tonic-gate errno = 0;
547c478bd9Sstevel@tonic-gate if ((FD = open(cp, O_RDWR)) < 0 && errno != EBUSY) {
558d489c7aSmuffin (void) fprintf(stderr, "tip: ");
567c478bd9Sstevel@tonic-gate perror(cp);
577c478bd9Sstevel@tonic-gate }
587c478bd9Sstevel@tonic-gate if (!trusted_device)
597c478bd9Sstevel@tonic-gate myperm();
607c478bd9Sstevel@tonic-gate if (FD >= 0 && !isatty(FD)) {
618d489c7aSmuffin (void) fprintf(stderr, "tip: %s: not a tty\n",
628d489c7aSmuffin cp);
638d489c7aSmuffin (void) close(FD);
647c478bd9Sstevel@tonic-gate FD = -1;
657c478bd9Sstevel@tonic-gate }
667c478bd9Sstevel@tonic-gate }
678d489c7aSmuffin (void) alarm(0);
687c478bd9Sstevel@tonic-gate if (!deadfl && FD >= 0) {
697c478bd9Sstevel@tonic-gate struct termios t;
707c478bd9Sstevel@tonic-gate
718d489c7aSmuffin (void) ioctl(FD, TCGETS, &t);
727c478bd9Sstevel@tonic-gate t.c_cflag |= XCLUDE|HUPCL;
738d489c7aSmuffin (void) ioctl(FD, TCSETSF, &t);
748d489c7aSmuffin (void) signal(SIGALRM, f);
757c478bd9Sstevel@tonic-gate return ((int)cp);
767c478bd9Sstevel@tonic-gate }
777c478bd9Sstevel@tonic-gate delock(uucplock);
787c478bd9Sstevel@tonic-gate }
798d489c7aSmuffin (void) signal(SIGALRM, f);
807c478bd9Sstevel@tonic-gate return (deadfl ? -1 : (int)cp);
817c478bd9Sstevel@tonic-gate }
82