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/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
#ident "%Z%%M% %I% %E% SMI" /* from UCB 4.7 6/25/83 */
#include "tip.h"
extern char *getremote();
extern int errno;
static sigjmp_buf deadline;
static int deadfl;
void
dead()
{
deadfl = 1;
siglongjmp(deadline, 1);
}
hunt(name)
char *name;
{
register char *cp;
void (*f)();
f = signal(SIGALRM, (sig_handler_t)dead);
while (cp = getremote(name)) {
deadfl = 0;
uucplock = cp;
if (mlock(uucplock) < 0) {
delock(uucplock);
continue;
}
/*
* Straight through call units, such as the BIZCOMP,
* VADIC and the DF, must indicate they're hardwired in
* order to get an open file descriptor placed in FD.
* Otherwise, as for a DN-11, the open will have to
* be done in the "open" routine.
*/
if (!HW)
break;
if (sigsetjmp(deadline, 1) == 0) {
alarm(10);
if (!trusted_device)
userperm();
errno = 0;
if ((FD = open(cp, O_RDWR)) < 0 && errno != EBUSY) {
fprintf(stderr, "tip: ");
perror(cp);
}
if (!trusted_device)
myperm();
if (FD >= 0 && !isatty(FD)) {
fprintf(stderr, "tip: %s: not a tty\n", cp);
close(FD);
FD = -1;
}
}
alarm(0);
if (!deadfl && FD >= 0) {
struct termios t;
ioctl(FD, TCGETS, &t);
t.c_cflag |= XCLUDE|HUPCL;
ioctl(FD, TCSETSF, &t);
signal(SIGALRM, f);
return ((int)cp);
}
delock(uucplock);
}
signal(SIGALRM, f);
return (deadfl ? -1 : (int)cp);
}
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