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Annotation of 43BSDTahoe/lib/libc/compat-sys5/tmpnam.c, revision 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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