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Annotation of src/usr.bin/mail/temp.c, Revision 1.18

1.18    ! millert     1: /*     $OpenBSD: temp.c,v 1.17 2016/07/28 21:37:45 tedu Exp $  */
1.2       deraadt     2: /*     $NetBSD: temp.c,v 1.5 1996/06/08 19:48:42 christos Exp $        */
                      3:
1.1       deraadt     4: /*
                      5:  * Copyright (c) 1980, 1993
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
1.14      millert    16:  * 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    17:  *    may be used to endorse or promote products derived from this software
                     18:  *    without specific prior written permission.
                     19:  *
                     20:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     21:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     22:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     23:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     24:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     25:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     26:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     27:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     28:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     29:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     30:  * SUCH DAMAGE.
                     31:  */
                     32:
                     33: #include "rcv.h"
1.18    ! millert    34: #include <pwd.h>
1.1       deraadt    35: #include "extern.h"
                     36:
                     37: /*
                     38:  * Mail -- a mail program
                     39:  *
                     40:  * Give names to all the temporary files that we will need.
                     41:  */
                     42:
1.12      millert    43: char *tmpdir;
1.1       deraadt    44:
                     45: void
1.12      millert    46: tinit(void)
1.1       deraadt    47: {
1.10      millert    48:        char *cp;
1.1       deraadt    49:
1.17      tedu       50:        tmpdir = _PATH_TMP;
1.5       millert    51:        if ((tmpdir = strdup(tmpdir)) == NULL)
1.16      mmcc       52:                err(1, "strdup");
1.5       millert    53:
1.13      millert    54:        /* Strip trailing '/' if necessary */
1.5       millert    55:        cp = tmpdir + strlen(tmpdir) - 1;
                     56:        while (cp > tmpdir && *cp == '/') {
                     57:                *cp = '\0';
                     58:                cp--;
1.1       deraadt    59:        }
                     60:
                     61:        /*
                     62:         * It's okay to call savestr in here because main will
                     63:         * do a spreserve() after us.
                     64:         */
1.7       millert    65:        if (myname != NULL) {
1.18    ! millert    66:                uid_t uid;
        !            67:
        !            68:                if (uid_from_user(myname, &uid) == -1)
1.6       millert    69:                        errx(1, "\"%s\" is not a user of this system", myname);
1.1       deraadt    70:        } else {
1.18    ! millert    71:                if ((myname = username()) == NULL) {
1.2       deraadt    72:                        myname = "nobody";
                     73:                        if (rcvmode)
1.1       deraadt    74:                                exit(1);
                     75:                } else
1.18    ! millert    76:                        myname = savestr(myname);
1.1       deraadt    77:        }
1.11      millert    78:        if ((cp = getenv("HOME")) == NULL || *cp == '\0' ||
                     79:            strlen(cp) >= PATHSIZE)
                     80:                homedir = NULL;
                     81:        else
                     82:                homedir = savestr(cp);
1.1       deraadt    83:        if (debug)
1.11      millert    84:                printf("user = %s, homedir = %s\n", myname,
                     85:                    homedir ? homedir : "NONE");
1.1       deraadt    86: }