Add utility for parsing MWI SMS DCS types

diff --git a/src/smsutil.c b/src/smsutil.c
index ca301dd..b381b8c 100644 (file)
--- a/src/smsutil.c
+++ b/src/smsutil.c
@@ -172,6 +172,50 @@ gboolean sms_dcs_decode(guint8 dcs, enum sms_class *cls,
        return TRUE;
 }
 
+gboolean sms_mwi_dcs_decode(guint8 dcs, enum sms_mwi_type *type,
+                               enum sms_charset *charset,
+                               gboolean *active, gboolean *discard)
+{
+       guint8 upper = (dcs & 0xf0) >> 4;
+       enum sms_mwi_type t;
+       enum sms_charset ch;
+       gboolean dis;
+       gboolean act;
+
+       if (upper < 0xC || upper > 0xE)
+               return FALSE;
+
+       upper = (dcs & 0x30) >> 4;
+
+       if (upper == 0)
+               dis = TRUE;
+       else
+               dis = FALSE;
+
+       if (upper == 3)
+               ch = SMS_CHARSET_UCS2;
+       else
+               ch = SMS_CHARSET_7BIT;
+
+       act = dcs & 0x8;
+
+       t = (enum sms_mwi_type) (dcs & 0x3);
+
+       if (type)
+               *type = t;
+
+       if (charset)
+               *charset = ch;
+
+       if (active)
+               *active = act;
+
+       if (discard)
+               *discard = dis;
+
+       return TRUE;
+}
+
 int sms_udl_in_bytes(guint8 ud_len, guint8 dcs)
 {
        int len_7bit = (ud_len + 1) * 7 / 8;

diff --git a/src/smsutil.h b/src/smsutil.h
index b5f15c7..37dffb1 100644 (file)
--- a/src/smsutil.h
+++ b/src/smsutil.h
@@ -156,6 +156,13 @@ enum sms_charset {
        SMS_CHARSET_UCS2 = 2,
 };
 
+enum sms_mwi_type {
+       SMS_MWI_TYPE_VOICE = 0,
+       SMS_MWI_TYPE_FAX = 1,
+       SMS_MWI_TYPE_EMAIL = 2,
+       SMS_MWI_TYPE_OTHER = 3,
+};
+
 struct sms_address {
        enum sms_number_type number_type;
        enum sms_numbering_plan numbering_plan;
@@ -317,4 +324,9 @@ gboolean sms_udh_iter_next(struct sms_udh_iter *iter);
 gboolean sms_dcs_decode(guint8 dcs, enum sms_class *cls,
                        enum sms_charset *charset,
                        gboolean *compressed, gboolean *autodelete);
+
+gboolean sms_mwi_dcs_decode(guint8 dcs, enum sms_mwi_type *type,
+                               enum sms_charset *charset,
+                               gboolean *active, gboolean *discard);
+
 #endif