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annotate src/auth/passdb-passwd.c @ 1046:561da07883b6 HEAD

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Async userdb and passdb interface.
author Timo Sirainen <tss@iki.fi>
date Mon, 27 Jan 2003 10:08:14 +0200
parents fe49ece0f3ea
children f1401fa7ab03
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1 /* Copyright (C) 2002-2003 Timo Sirainen */
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2
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3 #include "config.h"
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4 #undef HAVE_CONFIG_H
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5
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6 #ifdef PASSDB_PASSWD
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7
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8 #include "common.h"
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9 #include "safe-memset.h"
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10 #include "passdb.h"
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11 #include "mycrypt.h"
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12
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13 #include <pwd.h>
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14
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15 static void
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16 passwd_verify_plain(const char *user, const char *realm, const char *password,
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17 verify_plain_callback_t *callback, void *context)
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18 {
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19 struct passwd *pw;
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20 int result;
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21
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22 if (realm != NULL)
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23 user = t_strconcat(user, "@", realm, NULL);
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24 pw = getpwnam(user);
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25 if (pw == NULL) {
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26 if (errno != 0)
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27 i_error("getpwnam(%s) failed: %m", user);
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28 else if (verbose)
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29 i_info("passwd(%s): unknown user", user);
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30 callback(PASSDB_RESULT_USER_UNKNOWN, context);
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31 return;
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32 }
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33
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34 if (!IS_VALID_PASSWD(pw->pw_passwd)) {
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35 if (verbose) {
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36 i_info("passwd(%s): invalid password field '%s'",
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37 user, pw->pw_passwd);
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38 }
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39 callback(PASSDB_RESULT_USER_DISABLED, context);
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40 return;
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41 }
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42
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43 /* check if the password is valid */
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44 result = strcmp(mycrypt(password, pw->pw_passwd), pw->pw_passwd) == 0;
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45
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46 /* clear the passwords from memory */
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47 safe_memset(pw->pw_passwd, 0, strlen(pw->pw_passwd));
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48
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49 if (!result) {
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50 if (verbose)
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51 i_info("passwd(%s): password mismatch", user);
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52 callback(PASSDB_RESULT_PASSWORD_MISMATCH, context);
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53 return;
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54 }
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55
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56 callback(PASSDB_RESULT_OK, context);
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57 }
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58
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59 static void passwd_deinit(void)
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60 {
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61 endpwent();
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62 }
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63
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64 struct passdb_module passdb_passwd = {
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65 NULL,
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66 passwd_deinit,
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67
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68 passwd_verify_plain,
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69 NULL
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70 };
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71
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72 #endif