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[mms-dump] Decode Previously-Sent-By/Date-Value
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monich committed Apr 24, 2014
1 parent 9567dcf commit 0c173bd
Showing 1 changed file with 112 additions and 14 deletions.
126 changes: 112 additions & 14 deletions mms-dump/mms-dump.c
Expand Up @@ -76,8 +76,8 @@ typedef gboolean
h(REPLY_CHARGING_DEADLINE,"X-Mms-Reply-Charging-Deadline",0x1D, unknown )\
h(REPLY_CHARGING_ID, "X-Mms-Reply-Charging-ID", 0x1E, text )\
h(REPLY_CHARGING_SIZE, "X-Mms-Reply-Charging-Size", 0x1F, long )\
h(PREVIOUSLY_SENT_BY, "X-Mms-Previously-Sent-By", 0x20, unknown )\
h(PREVIOUSLY_SENT_DATE, "X-Mms-Previously-Sent-Date", 0x21, unknown )
h(PREVIOUSLY_SENT_BY, "X-Mms-Previously-Sent-By", 0x20, prevby )\
h(PREVIOUSLY_SENT_DATE, "X-Mms-Previously-Sent-Date", 0x21, prevdate )

#define WSP_WELL_KNOWN_HEADERS(h) \
h(CONTENT_LOCATION, "Content-Location", 0x0E, text )\
Expand Down Expand Up @@ -281,6 +281,23 @@ mms_value_print_date(
printf("%s", date);
}

static
gboolean
mms_value_decode_date_value(
const guint8* val,
unsigned int len,
time_t* t)
{
if (len <= sizeof(t)) {
unsigned int i;
for (*t=0, i=0; i<len; i++) {
*t = (((*t) << 8) | val[i]);
}
return TRUE;
}
return FALSE;
}

static
gboolean
mms_value_decode_date(
Expand All @@ -290,11 +307,8 @@ mms_value_decode_date(
unsigned int flags)
{
time_t t;
if (type == WSP_VALUE_TYPE_LONG && len <= sizeof(t)) {
unsigned int i;
for (t=0, i=0; i<len; i++) {
t = ((t << 8) | val[i]);
}
if (type == WSP_VALUE_TYPE_LONG &&
mms_value_decode_date_value(val, len, &t)) {
mms_value_print_date(t);
if (flags & MMS_DUMP_FLAG_VERBOSE) printf(" (%lu)", (unsigned long)t);
return TRUE;
Expand Down Expand Up @@ -477,14 +491,13 @@ mms_value_decode_respstat(
return mms_value_decode_enum(type, val, len, nv, G_N_ELEMENTS(nv), flags);
}

/*/* Encoded-string-value */
/* Encoded-string-value */
static
gboolean
mms_value_decode_etext(
mms_value_decode_encoded_text(
enum wsp_value_type type,
const guint8* val,
unsigned int len,
unsigned int flags)
unsigned int len)
{
/* http://www.iana.org/assignments/character-sets */
static const struct mms_named_value nv [] = {
Expand Down Expand Up @@ -545,7 +558,6 @@ mms_value_decode_etext(

if (type == WSP_VALUE_TYPE_TEXT) {
printf("%s", val);
mms_value_verbose_dump(val, len, flags);
return TRUE;
} else if (type == WSP_VALUE_TYPE_LONG) {
unsigned int charset = 0;
Expand All @@ -567,14 +579,29 @@ mms_value_decode_etext(
}
if (text) {
printf("%s", text);
mms_value_verbose_dump(val, len, flags);
g_free(tmp);
return TRUE;
}
}
}
}
return mms_value_decode_unknown(type, val, len, flags);
return FALSE;
}

static
gboolean
mms_value_decode_etext(
enum wsp_value_type type,
const guint8* val,
unsigned int len,
unsigned int flags)
{
if (mms_value_decode_encoded_text(type, val, len)) {
mms_value_verbose_dump(val, len, flags);
return TRUE;
} else {
return mms_value_decode_unknown(type, val, len, flags);
}
}

/* Sender-visibility-value */
Expand Down Expand Up @@ -668,6 +695,77 @@ mms_value_decode_expiry(
}
}

/* Previously-sent-by-value */
static
gboolean
mms_value_decode_prevby(
enum wsp_value_type type,
const guint8* val,
unsigned int len,
unsigned int flags)
{
/*
* Value-length Forwarded-count-value Encoded-string-value
* Forwarded-count-value = Integer-value
*/
if (type == WSP_VALUE_TYPE_LONG) {
unsigned int count = 0;
unsigned int consumed = 0;
if (wsp_decode_integer(val, len, &count, &consumed)) {
const guint8* ptr = val + consumed;
const unsigned int bytes_left = len - consumed;
enum wsp_value_type from_type;
const void* from_val;
unsigned int from_len;
if (wsp_decode_field(ptr, bytes_left, &from_type, &from_val,
&from_len, &consumed) && consumed == bytes_left &&
mms_value_decode_encoded_text(from_type, from_val, from_len)) {
printf("; count=%u", count);
mms_value_verbose_dump(val, len, flags);
return TRUE;
}
}
}
return mms_value_decode_unknown(type, val, len, flags);
}

/* Previously-sent-date-value */
static
gboolean
mms_value_decode_prevdate(
enum wsp_value_type type,
const guint8* val,
unsigned int len,
unsigned int flags)
{
/*
* Value-length Forwarded-count-value Date-value
* Forwarded-count-value = Integer-value
*/
if (type == WSP_VALUE_TYPE_LONG) {
unsigned int count = 0;
unsigned int consumed = 0;
if (wsp_decode_integer(val, len, &count, &consumed)) {
const guint8* ptr = val + consumed;
const unsigned int bytes_left = len - consumed;
enum wsp_value_type date_type;
const void* date_val;
unsigned int date_len;
time_t t;
if (wsp_decode_field(ptr, bytes_left, &date_type, &date_val,
&date_len, &consumed) && consumed == bytes_left &&
date_type == WSP_VALUE_TYPE_LONG &&
mms_value_decode_date_value(date_val, date_len, &t)) {
mms_value_print_date(t);
printf("; count=%u", count);
mms_value_verbose_dump(val, len, flags);
return TRUE;
}
}
}
return mms_value_decode_unknown(type, val, len, flags);
}

static
void
mms_value_decode_wsp_params(
Expand Down

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