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        "authstaticlist.h"
  22
  23 static const char rcsid[]="$Id: authshadow.c,v 1.15 2004/11/14 02:58:16 mrsam Exp $";
  24
  25
  26 extern int auth_shadow_pre(const char *userid, const char *service,
  27         int (*callback)(struct authinfo *, void *),
  28                         void *arg);
  29
  30 extern void auth_pwd_enumerate( void(*cb_func)(const char *name,
  31                                                uid_t uid,
  32                                                gid_t gid,
  33                                                const char *homedir,
  34                                                const char *maildir,
  35                                                const char *options,
  36                                                void *void_arg),
  37                                 void *void_arg);
  38
  39
  40 int auth_shadow(const char *service, const char *authtype, char *authdata,
  41                 int (*callback_func)(struct authinfo *, void *),
  42                 void *callback_arg)
  43 {
  44         const char *user, *pass;
  45
  46         if (strcmp(authtype, AUTHTYPE_LOGIN) ||
  47                 (user=strtok(authdata, "\n")) == 0 ||
  48                 (pass=strtok(0, "\n")) == 0)
  49         {
  50                 errno=EPERM;
  51                 return (-1);
  52         }
  53
  54         return auth_sys_common(&auth_shadow_pre, user, pass,
  55                                service, callback_func, callback_arg);
  56 }
  57
  58
  59 static void auth_shadow_cleanup()
  60 {
  61 #if     HAVE_ENDPWENT
  62
  63         endpwent();
  64 #endif
  65
  66 #if     HAVE_ENDSPENT
  67
  68         endspent();
  69 #endif
  70 }
  71
  72 static struct authstaticinfo authshadow_info={
  73         "authshadow",
  74         auth_shadow,
  75         auth_shadow_pre,
  76         auth_shadow_cleanup,
  77         auth_syspasswd,
  78         auth_shadow_cleanup,
  79         auth_pwd_enumerate,
  80 };
  81
  82
  83 struct authstaticinfo *courier_authshadow_init()
  84 {
  85         return &authshadow_info;
  86 }