libpurple/protocols/oscar/misc.c

   1 /*
   2  * Purple's oscar protocol plugin
   3  * This file is the legal property of its developers.
   4  * Please see the AUTHORS file distributed alongside this file.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
  19 */
  20
  21 /*
  22  * Random stuff.  Basically just a few functions for sending
  23  * simple SNACs, and then the generic error handler.
  24  */
  25
  26 #include "oscar.h"
  27
  28 /*
  29  * Generic routine for sending commands.
  30  *
  31  * I know I can do this in a smarter way...but I'm not thinking straight
  32  * right now...
  33  *
  34  * I had one big function that handled all three cases, but then it broke
  35  * and I split it up into three.  But then I fixed it.  I just never went
  36  * back to the single.  I don't see any advantage to doing it either way.
  37  *
  38  */
  39 void
  40 aim_genericreq_n(OscarData *od, FlapConnection *conn, guint16 family, guint16 subtype)
  41 {
  42         aim_snacid_t snacid = 0x00000000;
  43
  44         flap_connection_send_snac(od, conn, family, subtype, snacid, NULL);
  45 }
  46
  47 void
  48 aim_genericreq_n_snacid(OscarData *od, FlapConnection *conn, guint16 family, guint16 subtype)
  49 {
  50         aim_snacid_t snacid;
  51
  52         snacid = aim_cachesnac(od, family, subtype, 0x0000, NULL, 0);
  53
  54         flap_connection_send_snac(od, conn, family, subtype, snacid, NULL);
  55 }
  56
  57 void
  58 aim_genericreq_l(OscarData *od, FlapConnection *conn, guint16 family, guint16 subtype, guint32 *longdata)
  59 {
  60         ByteStream bs;
  61         aim_snacid_t snacid;
  62
  63         if (!longdata)
  64         {
  65                 aim_genericreq_n(od, conn, family, subtype);
  66                 return;
  67         }
  68
  69         byte_stream_new(&bs, 4);
  70
  71         snacid = aim_cachesnac(od, family, subtype, 0x0000, NULL, 0);
  72
  73         byte_stream_put32(&bs, *longdata);
  74
  75         flap_connection_send_snac(od, conn, family, subtype, snacid, &bs);
  76
  77         byte_stream_destroy(&bs);
  78 }
  79
  80 /*
  81  * Should be generic enough to handle the errors for all groups.
  82  *
  83  */
  84 static int
  85 generror(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)
  86 {
  87         int ret = 0;
  88         int error = 0;
  89         aim_rxcallback_t userfunc;
  90         aim_snac_t *snac2;
  91
  92         snac2 = aim_remsnac(od, snac->id);
  93
  94         if (byte_stream_bytes_left(bs))
  95                 error = byte_stream_get16(bs);
  96
  97         if ((userfunc = aim_callhandler(od, snac->family, snac->subtype)))
  98                 ret = userfunc(od, conn, frame, error, snac2 ? snac2->data : NULL);
  99
 100         if (snac2) {
 101                 g_free(snac2->data);
 102                 g_free(snac2);
 103         }
 104
 105         return ret;
 106 }
 107
 108 static int
 109 snachandler(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)
 110 {
 111         if (snac->subtype == 0x0001)
 112                 return generror(od, conn, mod, frame, snac, bs);
 113         else if ((snac->family == 0xffff) && (snac->subtype == 0xffff)) {
 114                 aim_rxcallback_t userfunc;
 115
 116                 if ((userfunc = aim_callhandler(od, snac->family, snac->subtype)))
 117                         return userfunc(od, conn, frame);
 118         }
 119
 120         return 0;
 121 }
 122
 123 int
 124 misc_modfirst(OscarData *od, aim_module_t *mod)
 125 {
 126         mod->family = 0xffff;
 127         mod->version = 0x0000;
 128         mod->flags = AIM_MODFLAG_MULTIFAMILY;
 129         strncpy(mod->name, "misc", sizeof(mod->name));
 130         mod->snachandler = snachandler;
 131
 132         return 0;
 133 }