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Annotation of 43BSDTahoe/lib/libc/compat-sys5/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
                      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[] = "@(#)tmpnam.c   4.5 (Berkeley) 6/27/88";
                     20: #endif /* LIBC_SCCS and not lint */
                     21: 
                     22: #include <sys/param.h>
                     23: #include <sys/stat.h>
                     24: #include <sys/file.h>
                     25: #include <stdio.h>
                     26: 
                     27: #define        P_tmpdir        "/usr/tmp"
                     28: 
                     29: FILE *
                     30: tmpfile()
                     31: {
                     32:        FILE *fp;
                     33:        char *f, name[MAXPATHLEN], *tmpnam();
                     34: 
                     35:        if (!(fp = fopen(f = tmpnam(name), "w+"))) {
                     36:                fprintf(stderr, "tmpfile: cannot open %s.\n", name);
                     37:                return(NULL);
                     38:        }
                     39:        (void)unlink(f);
                     40:        return(fp);
                     41: }
                     42: 
                     43: char *
                     44: tmpnam(s)
                     45:        char *s;
                     46: {
                     47:        static char name[MAXPATHLEN];
                     48:        char *mktemp();
                     49: 
                     50:        if (!s)
                     51:                s = name;
                     52:        (void)sprintf(s, "%s/XXXXXX", P_tmpdir);
                     53:        return(mktemp(s));
                     54: }
                     55: 
                     56: char *
                     57: tempnam(dir, pfx)
                     58:        char *dir, *pfx;
                     59: {
                     60:        struct stat buf;
                     61:        char *f, *name, *getenv(), *malloc(), *mktemp(), *strcat(), *strcpy();
                     62: 
                     63:        if (!(name = malloc((u_int)MAXPATHLEN)))
                     64:                return(NULL);
                     65:        if ((f = getenv("TMPDIR")) && !stat(f, &buf) &&
                     66:            (buf.st_mode&S_IFMT) == S_IFDIR && !access(f, W_OK|X_OK)) {
                     67:                (void)strcpy(name, f);
                     68:                goto done;
                     69:        }
                     70:        if (dir && !stat(dir, &buf) &&
                     71:            (buf.st_mode&S_IFMT) == S_IFDIR && !access(dir, W_OK|X_OK)) {
                     72:                (void)strcpy(name, dir);
                     73:                goto done;
                     74:        }
                     75:        if (!stat(P_tmpdir, &buf) &&
                     76:            (buf.st_mode&S_IFMT) == S_IFDIR && !access(P_tmpdir, W_OK|X_OK)) {
                     77:                (void)strcpy(name, P_tmpdir);
                     78:                goto done;
                     79:        }
                     80:        if (!stat("/tmp", &buf) &&
                     81:            (buf.st_mode&S_IFMT) == S_IFDIR && !access("/tmp", W_OK|X_OK)) {
                     82:                (void)strcpy(name, "/tmp");
                     83:                goto done;
                     84:        }
                     85:        return(NULL);
                     86: done:  (void)strcat(name, "/");
                     87:        if (pfx)
                     88:                (void)strcat(name, pfx);
                     89:        (void)strcat(name, "XXXXXX");
                     90:        return(mktemp(name));
                     91: }

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