1 /* 2 * Copyright (c) 1988 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 */ 17 18 #if defined(LIBC_SCCS) && !defined(lint) 19 static char sccsid[] = "@(#)ttyslot.c 5.3 (Berkeley) 08/31/88"; 20 #endif /* LIBC_SCCS and not lint */ 21 22 #include <ttyent.h> 23 #include <stdio.h> 24 25 ttyslot() 26 { 27 register struct ttyent *ttyp; 28 register int slot; 29 register char *p; 30 int cnt; 31 char *name, *rindex(), *ttyname(); 32 33 for (cnt = 0; cnt < 3; ++cnt) 34 if (name = ttyname(cnt)) { 35 if (p = rindex(name, '/')) 36 ++p; 37 else 38 p = name; 39 for (slot = 1; ttyp = getttyent(); ++slot) 40 if (!strcmp(ttyp->ty_name, p)) { 41 endttyent(); 42 return(slot); 43 } 44 break; 45 } 46 endttyent(); 47 return(0); 48 } 49