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 int _modinit(void);
  19 static void _moddeinit(void);
  20 static int eb_usermode(const char *data, struct Client *client_p, struct Channel *chptr, long mode_type);
  21 static const char extb_desc[] = "Usermode ($m) extban type";
  22
  23 DECLARE_MODULE_AV2(extb_usermode, _modinit, _moddeinit, NULL, NULL, NULL, NULL, NULL, extb_desc);
  24
  25 static int
  26 _modinit(void)
  27 {
  28         extban_table['m'] = eb_usermode;
  29
  30         return 0;
  31 }
  32
  33 static void
  34 _moddeinit(void)
  35 {
  36         extban_table['m'] = NULL;
  37 }
  38
  39 static int eb_usermode(const char *data, struct Client *client_p,
  40                 struct Channel *chptr, long mode_type)
  41 {
  42         int dir = MODE_ADD;
  43         unsigned int modes_ack = 0, modes_nak = 0;
  44         const char *p;
  45
  46         (void)chptr;
  47
  48         /* $m must have a specified mode */
  49         if (data == NULL)
  50                 return EXTBAN_INVALID;
  51
  52         for (p = data; *p != '\0'; p++)
  53         {
  54                 switch (*p)
  55                 {
  56                 case '+':
  57                         dir = MODE_ADD;
  58                         break;
  59                 case '-':
  60                         dir = MODE_DEL;
  61                         break;
  62                 default:
  63                         switch (dir)
  64                         {
  65                         case MODE_DEL:
  66                                 modes_nak |= user_modes[(unsigned char) *p];
  67                                 break;
  68                         case MODE_ADD:
  69                         default:
  70                                 modes_ack |= user_modes[(unsigned char) *p];
  71                                 break;
  72                         }
  73                         break;
  74                 }
  75         }
  76
  77         return ((client_p->umodes & modes_ack) == modes_ack &&
  78                         !(client_p->umodes & modes_nak)) ?
  79                 EXTBAN_MATCH : EXTBAN_NOMATCH;
  80 }