authshadow.c

   1 /*
   2 ** Copyright 1998 - 2004 Double Precision, Inc.  See COPYING for
   3 ** distribution information.
   4 */
   5
   6 #if     HAVE_CONFIG_H
   7 #include        "courier_auth_config.h"
   8 #endif
   9 #include        <stdio.h>
  10 #include        <stdlib.h>
  11 #include        <string.h>
  12 #include        <errno.h>
  13 #include        <pwd.h>
  14 #if     HAVE_UNISTD_H
  15 #include        <unistd.h>
  16 #endif
  17 #if     HAVE_SHADOW_H
  18 #include        <shadow.h>
  19 #endif
  20 #include        "auth.h"
  21 #include        "courierauthstaticlist.h"
  22
  23
  24
  25 extern int auth_shadow_pre(const char *userid, const char *service,
  26         int (*callback)(struct authinfo *, void *),
  27                         void *arg);
  28
  29 extern void auth_pwd_enumerate( void(*cb_func)(const char *name,
  30                                                uid_t uid,
  31                                                gid_t gid,
  32                                                const char *homedir,
  33                                                const char *maildir,
  34                                                const char *options,
  35                                                void *void_arg),
  36                                 void *void_arg);
  37
  38
  39 int auth_shadow(const char *service, const char *authtype, char *authdata,
  40                 int (*callback_func)(struct authinfo *, void *),
  41                 void *callback_arg)
  42 {
  43         const char *user, *pass;
  44
  45         if (strcmp(authtype, AUTHTYPE_LOGIN) ||
  46                 (user=strtok(authdata, "\n")) == 0 ||
  47                 (pass=strtok(0, "\n")) == 0)
  48         {
  49                 errno=EPERM;
  50                 return (-1);
  51         }
  52
  53         return auth_sys_common(&auth_shadow_pre, user, pass,
  54                                service, callback_func, callback_arg);
  55 }
  56
  57
  58 static void auth_shadow_cleanup()
  59 {
  60 #if     HAVE_ENDPWENT
  61
  62         endpwent();
  63 #endif
  64
  65 #if     HAVE_ENDSPENT
  66
  67         endspent();
  68 #endif
  69 }
  70
  71 static struct authstaticinfo authshadow_info={
  72         "authshadow",
  73         auth_shadow,
  74         auth_shadow_pre,
  75         auth_shadow_cleanup,
  76         auth_syspasswd,
  77         auth_shadow_cleanup,
  78         auth_pwd_enumerate,
  79 };
  80
  81
  82 struct authstaticinfo *courier_authshadow_init()
  83 {
  84         return &authshadow_info;
  85 }