1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 1989 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* from S5R3 1.11 */
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate /* Copyright (c) 1984 AT&T */
30*0Sstevel@tonic-gate /* All Rights Reserved */
31*0Sstevel@tonic-gate
32*0Sstevel@tonic-gate
33*0Sstevel@tonic-gate /*LINTLIBRARY*/
34*0Sstevel@tonic-gate /****************************************************************
35*0Sstevel@tonic-gate * Routine expects a string of length at least 6, with
36*0Sstevel@tonic-gate * six trailing 'X's. These will be overlaid with a
37*0Sstevel@tonic-gate * letter and the last (5) digigts of the proccess ID.
38*0Sstevel@tonic-gate * If every letter (a thru z) thus inserted leads to
39*0Sstevel@tonic-gate * an existing file name, your string is shortened to
40*0Sstevel@tonic-gate * length zero upon return (first character set to '\0').
41*0Sstevel@tonic-gate ***************************************************************/
42*0Sstevel@tonic-gate #include <sys/types.h>
43*0Sstevel@tonic-gate #include <sys/stat.h>
44*0Sstevel@tonic-gate
45*0Sstevel@tonic-gate #define XCNT 6
46*0Sstevel@tonic-gate
47*0Sstevel@tonic-gate extern int strlen(), access(), getpid();
48*0Sstevel@tonic-gate
49*0Sstevel@tonic-gate char *
mktemp(as)50*0Sstevel@tonic-gate mktemp(as)
51*0Sstevel@tonic-gate char *as;
52*0Sstevel@tonic-gate {
53*0Sstevel@tonic-gate register char *s=as;
54*0Sstevel@tonic-gate register unsigned pid;
55*0Sstevel@tonic-gate register unsigned xcnt=0; /* keeps track of number of X's seen */
56*0Sstevel@tonic-gate struct stat buf;
57*0Sstevel@tonic-gate
58*0Sstevel@tonic-gate pid = getpid();
59*0Sstevel@tonic-gate s += strlen(as); /* point at the terminal null */
60*0Sstevel@tonic-gate while(*--s == 'X' && ++xcnt <= XCNT) {
61*0Sstevel@tonic-gate *s = (pid%10) + '0';
62*0Sstevel@tonic-gate pid /= 10;
63*0Sstevel@tonic-gate }
64*0Sstevel@tonic-gate if(*++s) { /* maybe there were no 'X's */
65*0Sstevel@tonic-gate *s = 'a';
66*0Sstevel@tonic-gate while (stat(as, &buf) == 0) {
67*0Sstevel@tonic-gate if(++*s > 'z') {
68*0Sstevel@tonic-gate *as = '\0';
69*0Sstevel@tonic-gate break;
70*0Sstevel@tonic-gate }
71*0Sstevel@tonic-gate }
72*0Sstevel@tonic-gate } else
73*0Sstevel@tonic-gate if (stat(as, &buf) == 0)
74*0Sstevel@tonic-gate *as = '\0';
75*0Sstevel@tonic-gate return(as);
76*0Sstevel@tonic-gate }
77