tvbuff_t * dissect_cbs_data(guint8 sms_encoding, tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, guint16 offset )
{
tvbuff_t * tvb_out = NULL;
int length = tvb_length(tvb) - offset;
gchar *utf8_text = NULL, *utf8_out;
guint8 * input_string;
GIConv cd;
GError *l_conv_error = NULL;
switch(sms_encoding){
case SMS_ENCODING_7BIT:
case SMS_ENCODING_7BIT_LANG:
utf8_text = tvb_get_ts_23_038_7bits_string(wmem_packet_scope(), tvb, offset<<3, (length*8)/7);
utf8_out = g_strdup(utf8_text);
tvb_out = tvb_new_child_real_data(tvb, utf8_out, (guint)strlen(utf8_out), (guint)strlen(utf8_out));
tvb_set_free_cb(tvb_out, g_free);
add_new_data_source(pinfo, tvb_out, "unpacked 7 bit data");
break;
case SMS_ENCODING_8BIT:
tvb_out = tvb_new_subset(tvb, offset, length, length);
break;
case SMS_ENCODING_UCS2:
case SMS_ENCODING_UCS2_LANG:
input_string = tvb_get_string(wmem_packet_scope(), tvb, offset, length);
if ((cd = g_iconv_open("UTF-8","UCS-2BE")) != (GIConv) -1)
{
utf8_text = g_convert_with_iconv(input_string, length, cd, NULL, NULL, &l_conv_error);
if(!l_conv_error)
{
tvb_out = tvb_new_subset(tvb, offset, length, length);
}
else
proto_tree_add_text(tree, tvb, offset, length, "CBS String: g_convert_with_iconv FAILED");
g_free(utf8_text);
g_iconv_close(cd);
}
else
{
proto_tree_add_text(tree, tvb, offset, length, "CBS String: g_iconv_open FAILED contact wireshark");
}
break;
default:
proto_tree_add_text(tree, tvb, offset, length, "Unhandled encoding %d of CBS String", sms_encoding);
break;
}
return tvb_out;
}
tvbuff_t * dissect_cbs_data(guint8 sms_encoding, tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, guint offset )
{
tvbuff_t * tvb_out = NULL;
int length = tvb_length(tvb) - offset;
gchar *utf8_text = NULL, *utf8_out;
switch(sms_encoding){
case SMS_ENCODING_7BIT:
case SMS_ENCODING_7BIT_LANG:
utf8_text = tvb_get_ts_23_038_7bits_string(wmem_packet_scope(), tvb, offset<<3, (length*8)/7);
utf8_out = g_strdup(utf8_text);
tvb_out = tvb_new_child_real_data(tvb, utf8_out, (guint)strlen(utf8_out), (guint)strlen(utf8_out));
tvb_set_free_cb(tvb_out, g_free);
add_new_data_source(pinfo, tvb_out, "unpacked 7 bit data");
break;
case SMS_ENCODING_8BIT:
/*
* XXX - encoding is "user-defined". Have a preference?
*/
utf8_text = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, length, ENC_ASCII|ENC_NA);
utf8_out = g_strdup(utf8_text);
tvb_out = tvb_new_child_real_data(tvb, utf8_out, (guint)strlen(utf8_out), (guint)strlen(utf8_out));
tvb_set_free_cb(tvb_out, g_free);
add_new_data_source(pinfo, tvb_out, "unpacked 7 bit data");
break;
case SMS_ENCODING_UCS2:
case SMS_ENCODING_UCS2_LANG:
utf8_text = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, length, ENC_UCS_2|ENC_BIG_ENDIAN);
utf8_out = g_strdup(utf8_text);
tvb_out = tvb_new_child_real_data(tvb, utf8_out, (guint)strlen(utf8_out), (guint)strlen(utf8_out));
tvb_set_free_cb(tvb_out, g_free);
add_new_data_source(pinfo, tvb_out, "unpacked UCS-2 data");
break;
default:
proto_tree_add_expert_format(tree, pinfo, &ei_gsm_cbs_unhandled_encoding, tvb, offset, length,
"Unhandled encoding %d of CBS String", sms_encoding);
break;
}
return tvb_out;
}
