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

1.1       root        1: /*
                      2:  * Copyright (c) 1988 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted provided
                      6:  * that: (1) source distributions retain this entire copyright notice and
                      7:  * comment, and (2) distributions including binaries display the following
                      8:  * acknowledgement:  ``This product includes software developed by the
                      9:  * University of California, Berkeley and its contributors'' in the
                     10:  * documentation or other materials provided with the distribution and in
                     11:  * all advertising materials mentioning features or use of this software.
                     12:  * Neither the name of the University nor the names of its contributors may
                     13:  * be used to endorse or promote products derived from this software without
                     14:  * specific prior written permission.
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     16:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     17:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     18:  */
                     19: 
                     20: #if defined(LIBC_SCCS) && !defined(lint)
                     21: static char sccsid[] = "@(#)tmpnam.c   4.8 (Berkeley) 6/22/90";
                     22: #endif /* LIBC_SCCS and not lint */
                     23: 
                     24: #include <sys/param.h>
                     25: #include <stdio.h>
                     26: 
                     27: #define        P_tmpdir        "/usr/tmp"
                     28: 
                     29: FILE *
                     30: tmpfile()
                     31: {
                     32:        FILE *fp;
                     33:        char *f, *tmpnam();
                     34: 
                     35:        if (!(f = tmpnam((char *)NULL)) || !(fp = fopen(f, "w+"))) {
                     36:                fprintf(stderr, "tmpfile: cannot open %s.\n", f);
                     37:                return(NULL);
                     38:        }
                     39:        (void)unlink(f);
                     40:        return(fp);
                     41: }
                     42: 
                     43: char *
                     44: tmpnam(s)
                     45:        char *s;
                     46: {
                     47:        char *malloc(), *mktemp();
                     48: 
                     49:        if (!s && !(s = malloc((u_int)MAXPATHLEN)))
                     50:                return(NULL);
                     51:        (void)sprintf(s, "%s/XXXXXX", P_tmpdir);
                     52:        return(mktemp(s));
                     53: }
                     54: 
                     55: char *
                     56: tempnam(dir, pfx)
                     57:        char *dir, *pfx;
                     58: {
                     59:        char *f, *name, *getenv(), *malloc(), *mktemp();
                     60: 
                     61:        if (!(name = malloc((u_int)MAXPATHLEN)))
                     62:                return(NULL);
                     63: 
                     64:        if (f = getenv("TMPDIR")) {
                     65:                (void)sprintf(name, "%s/%sXXXXXX", f, pfx ? "" : pfx);
                     66:                if (f = mktemp(name))
                     67:                        return(f);
                     68:        }
                     69:        if (dir) {
                     70:                (void)sprintf(name, "%s/%sXXXXXX", dir, pfx ? "" : pfx);
                     71:                if (f = mktemp(name))
                     72:                        return(f);
                     73:        }
                     74:        (void)sprintf(name, "%s/%sXXXXXX", P_tmpdir, pfx ? "" : pfx);
                     75:        if (f = mktemp(name))
                     76:                return(f);
                     77:        (void)sprintf(name, "/tmp/%sXXXXXX", pfx ? "" : pfx);
                     78:        if (!(f = mktemp(name)))
                     79:                (void)free(name);
                     80:        return(f);
                     81: }

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