addons/chan_mobile: Increase buffer size of UCS2 encoded SMS messages

When UCS2 character encoding is used, one symbol in national language can be
expanded to 4 bytes. The current buffer used for receiving message in
do_monitor_phone is 256 bytes, which is not large enough for incoming messages.

For example:
* AT+CMGR phone response prefix
  '+CMGR: "REC UNREAD","+7**********",,"14/10/29,13:31:39+12"\r\n' - 60 bytes
* SMS body with UCS2 encoding (max) - 280 bytes
* AT+CMGR phone response suffix '\r\n\r\nOK\r\n' - 8 bytes
* Terminating null character - 1 byte

This results in a needed buffer size of 349 bytes. Hence, this patch opts for a
350 byte buffer.

ASTERISK-24468 #close
Reported by: Dmitriy Bubnov
patches:
  chan_mobile-1_8.diff uploaded by Dmitriy Bubnov (License 6651)
  chan_mobile-trunk.diff uploaded by Dmitry Bubnov (License 6651)
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Merged revisions 427607 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 427610 from http://svn.asterisk.org/svn/asterisk/branches/12
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Merged revisions 427611 from http://svn.asterisk.org/svn/asterisk/branches/13

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@427612 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/addons/chan_mobile.c b/addons/chan_mobile.c
index aa537c96aebd9856c565f7b9677f91342e6793c6..3304702d24a9d594dcbd6028b4720f2b7c32830a 100644 (file)
--- a/addons/chan_mobile.c
+++ b/addons/chan_mobile.c
@@ -3801,7 +3801,7 @@ static void *do_monitor_phone(void *data)
 {
        struct mbl_pvt *pvt = (struct mbl_pvt *)data;
        struct hfp_pvt *hfp = pvt->hfp;
-       char buf[256];
+       char buf[350];
        int t;
        at_message_t at_msg;
        struct msg_queue_entry *entry;