static guint
get_hex_uint(tvbuff_t *tvb, gint offset, gint *next_offset)
{
int c;
guint u = 0;
while (g_ascii_isxdigit(c = tvb_get_guint8(tvb, offset))) {
u = 16*u + ws_xton(c);
offset++;
}
*next_offset = offset;
return u;
}
static int
get_form_key_value(tvbuff_t *tvb, char **ptr, int offset, char stop)
{
const int orig_offset = offset;
char *tmp;
int len;
len = 0;
while (tvb_reported_length_remaining(tvb, offset) > 0) {
guint8 ch;
ch = tvb_get_guint8(tvb, offset);
if (!ch)
return -1;
if (ch == stop)
break;
if (ch == '%') {
offset++;
ch = tvb_get_guint8(tvb, offset);
if (ws_xton(ch) == -1)
return -1;
offset++;
ch = tvb_get_guint8(tvb, offset);
if (ws_xton(ch) == -1)
return -1;
}
len++;
offset++;
}
*ptr = tmp = (char*)wmem_alloc(wmem_packet_scope(), len + 1);
tmp[len] = '\0';
len = 0;
offset = orig_offset;
while (tvb_reported_length_remaining(tvb, offset) > 0) {
guint8 ch;
ch = tvb_get_guint8(tvb, offset);
if (!ch)
return -1;
if (ch == stop)
break;
if (ch == '%') {
guint8 ch1, ch2;
offset++;
ch1 = tvb_get_guint8(tvb, offset);
offset++;
ch2 = tvb_get_guint8(tvb, offset);
tmp[len] = ws_xton(ch1) << 4 | ws_xton(ch2);
} else if (ch == '+')
tmp[len] = ' ';
else
tmp[len] = ch;
len++;
offset++;
}
return offset;
}