extensions/extb_usermode.c

   1 /*
   2  * Usermode extban type: bans all users with a specific usermode
   3  * -- nenolod
   4  */
   5
   6 #include "stdinc.h"
   7 #include "modules.h"
   8 #include "hook.h"
   9 #include "client.h"
  10 #include "ircd.h"
  11 #include "send.h"
  12 #include "hash.h"
  13 #include "s_conf.h"
  14 #include "s_user.h"
  15 #include "s_serv.h"
  16 #include "numeric.h"
  17
  18 static const char extb_desc[] = "Usermode ($m) extban type";
  19
  20 static int _modinit(void);
  21 static void _moddeinit(void);
  22 static int eb_usermode(const char *data, struct Client *client_p, struct Channel *chptr, long mode_type);
  23
  24 DECLARE_MODULE_AV2(extb_usermode, _modinit, _moddeinit, NULL, NULL, NULL, NULL, NULL, extb_desc);
  25
  26 static int
  27 _modinit(void)
  28 {
  29         extban_table['u'] = eb_usermode;
  30
  31         return 0;
  32 }
  33
  34 static void
  35 _moddeinit(void)
  36 {
  37         extban_table['u'] = NULL;
  38 }
  39
  40 static int eb_usermode(const char *data, struct Client *client_p,
  41                 struct Channel *chptr, long mode_type)
  42 {
  43         int dir = MODE_ADD;
  44         unsigned int modes_ack = 0, modes_nak = 0;
  45         const char *p;
  46
  47         (void)chptr;
  48
  49         /* $m must have a specified mode */
  50         if (data == NULL)
  51                 return EXTBAN_INVALID;
  52
  53         for (p = data; *p != '\0'; p++)
  54         {
  55                 switch (*p)
  56                 {
  57                 case '+':
  58                         dir = MODE_ADD;
  59                         break;
  60                 case '-':
  61                         dir = MODE_DEL;
  62                         break;
  63                 default:
  64                         switch (dir)
  65                         {
  66                         case MODE_DEL:
  67                                 modes_nak |= user_modes[(unsigned char) *p];
  68                                 break;
  69                         case MODE_ADD:
  70                         default:
  71                                 modes_ack |= user_modes[(unsigned char) *p];
  72                                 break;
  73                         }
  74                         break;
  75                 }
  76         }
  77
  78         return ((client_p->umodes & modes_ack) == modes_ack &&
  79                         !(client_p->umodes & modes_nak)) ?
  80                 EXTBAN_MATCH : EXTBAN_NOMATCH;
  81 }