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1 /* ========================================================================
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2 * Copyright 1988-2006 University of Washington
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3 *
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4 * Licensed under the Apache License, Version 2.0 (the "License");
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5 * you may not use this file except in compliance with the License.
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6 * You may obtain a copy of the License at
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7 *
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8 * http://www.apache.org/licenses/LICENSE-2.0
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9 *
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10 *
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11 * ========================================================================
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12 */
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13
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14 /*
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15 * Program: OSF/1 (Digital UNIX) 4 login
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16 *
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17 * Author: Mark Crispin
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18 * Networks and Distributed Computing
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19 * Computing & Communications
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20 * University of Washington
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21 * Administration Building, AG-44
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22 * Seattle, WA 98195
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23 * Internet: MRC@CAC.Washington.EDU
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24 *
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25 * Date: 1 August 1988
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26 * Last Edited: 30 August 2006
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27 */
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28
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29 /* Log in
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30 * Accepts: login passwd struct
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31 * argument count
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32 * argument vector
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33 * Returns: T if success, NIL otherwise
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34 */
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35
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36 long loginpw (struct passwd *pw,int argc,char *argv[])
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37 {
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38 int i;
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39 char *s;
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40 char *name = cpystr (pw->pw_name);
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41 char *host = cpystr (tcp_clienthost ());
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42 uid_t uid = pw->pw_uid;
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43 long ret = NIL;
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44 /* tie off address */
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45 if (s = strchr (host,' ')) *s = '\0';
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46 if (*host == '[') { /* convert [a.b.c.d] to a.b.c.d */
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47 memmove (host,host+1,i = strlen (host + 2));
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48 host[i] = '\0';
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49 }
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50 if (sia_become_user (checkpw_collect,argc,argv,host,name,NIL,NIL,NIL,NIL,
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51 SIA_BEU_REALLOGIN|SIA_BEU_OKROOTDIR) != SIASUCCESS)
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52 setreuid (0,0); /* make sure have root again */
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53 /* probable success, complete login */
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54 else ret = (!setreuid (0,0) && !setuid (uid));
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55 fs_give ((void **) &name);
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56 fs_give ((void **) &host);
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57 return ret;
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58 }
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