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Annotation of 43BSDReno/lib/libc/gen/ttyslot.c, revision 1.1.1.1

1.1       root        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: (1) source distributions retain this entire copyright
                      7:  * notice and comment, and (2) distributions including binaries display
                      8:  * the following acknowledgement:  ``This product includes software
                      9:  * developed by the University of California, Berkeley and its contributors''
                     10:  * in the documentation or other materials provided with the distribution
                     11:  * and in all advertising materials mentioning features or use of this
                     12:  * software. Neither the name of the University nor the names of its
                     13:  * contributors may be used to endorse or promote products derived
                     14:  * from this software without specific prior written permission.
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     18:  */
                     19: 
                     20: #if defined(LIBC_SCCS) && !defined(lint)
                     21: static char sccsid[] = "@(#)ttyslot.c  5.5 (Berkeley) 6/1/90";
                     22: #endif /* LIBC_SCCS and not lint */
                     23: 
                     24: #include <ttyent.h>
                     25: #include <stdio.h>
                     26: 
                     27: ttyslot()
                     28: {
                     29:        register struct ttyent *ttyp;
                     30:        register int slot;
                     31:        register char *p;
                     32:        int cnt;
                     33:        char *name, *rindex(), *ttyname();
                     34: 
                     35:        setttyent();
                     36:        for (cnt = 0; cnt < 3; ++cnt) 
                     37:                if (name = ttyname(cnt)) {
                     38:                        if (p = rindex(name, '/')) 
                     39:                                ++p;
                     40:                        else
                     41:                                p = name;
                     42:                        for (slot = 1; ttyp = getttyent(); ++slot)
                     43:                                if (!strcmp(ttyp->ty_name, p)) {
                     44:                                        endttyent();
                     45:                                        return(slot);
                     46:                                }
                     47:                        break;
                     48:                }
                     49:        endttyent();
                     50:        return(0);
                     51: }

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