char* parse_hname2(char* begin, char* end, struct hdr_field* hdr)
{
register char* p;
register unsigned int val;
if ((end - begin) < 4) {
hdr->type = HDR_ERROR_T;
return begin;
}
p = begin;
val = LOWER_DWORD(READ(p));
hdr->name.s = begin;
switch(val) {
FIRST_QUATERNIONS;
default:
switch(LOWER_BYTE(*p)) {
case 't':
switch(LOWER_BYTE(*(p + 1))) {
case 'o':
case ' ':
hdr->type = HDR_TO_T;
p += 2;
goto dc_end;
case ':':
hdr->type = HDR_TO_T;
hdr->name.len = 1;
return (p + 2);
}
break;
case 'v': PARSE_COMPACT(HDR_VIA_T); break;
case 'f': PARSE_COMPACT(HDR_FROM_T); break;
case 'i': PARSE_COMPACT(HDR_CALLID_T); break;
case 'm': PARSE_COMPACT(HDR_CONTACT_T); break;
case 'l': PARSE_COMPACT(HDR_CONTENTLENGTH_T); break;
case 'k': PARSE_COMPACT(HDR_SUPPORTED_T); break;
case 'c': PARSE_COMPACT(HDR_CONTENTTYPE_T); break;
case 'o': PARSE_COMPACT(HDR_EVENT_T); break;
case 'x': PARSE_COMPACT(HDR_SESSIONEXPIRES_T);break;
case 'a': PARSE_COMPACT(HDR_ACCEPTCONTACT_T); break;
case 'u': PARSE_COMPACT(HDR_ALLOWEVENTS_T); break;
case 'e': PARSE_COMPACT(HDR_CONTENTENCODING_T); break;
case 'b': PARSE_COMPACT(HDR_REFERREDBY_T); break;
case 'j': PARSE_COMPACT(HDR_REJECTCONTACT_T); break;
case 'd': PARSE_COMPACT(HDR_REQUESTDISPOSITION_T); break;
case 's': PARSE_COMPACT(HDR_SUBJECT_T); break;
case 'r': PARSE_COMPACT(HDR_REFER_TO_T); break;
}
goto other;
}
/* Double colon hasn't been found yet */
dc_end:
p = skip_ws(p, end - p);
if (*p != ':') {
goto other;
} else {
hdr->name.len = p - hdr->name.s;
return (p + 1);
}
/* Unknown header type */
other:
p = q_memchr(p, ':', end - p);
if (!p) { /* No double colon found, error.. */
hdr->type = HDR_ERROR_T;
hdr->name.s = 0;
hdr->name.len = 0;
return 0;
} else {
hdr->type = HDR_OTHER_T;
hdr->name.len = p - hdr->name.s;
return (p + 1);
}
}
char* parse_hname2(char* begin, char* end, struct hdr_field* hdr)
{
register char* p;
register unsigned int val;
if ((end - begin) < 4) {
hdr->type = HDR_ERROR_T;
return begin;
}
p = begin;
val = LOWER_DWORD(READ(p));
hdr->name.s = begin;
switch(val) {
FIRST_QUATERNIONS;
default:
switch(LOWER_BYTE(*p)) {
case 't':
switch(LOWER_BYTE(*(p + 1))) {
case 'o':
p += 2;
hdr->type = HDR_TO_T;
hdr->name.len = 2;
goto dc_cont;
case ' ':
case '\t':
p += 2;
hdr->type = HDR_TO_T;
hdr->name.len = 1;
goto dc_end;
case ':':
hdr->type = HDR_TO_T;
hdr->name.len = 1;
return (p + 2);
}
break;
case 'v': PARSE_COMPACT(HDR_VIA_T); break;
case 'f': PARSE_COMPACT(HDR_FROM_T); break;
case 'i': PARSE_COMPACT(HDR_CALLID_T); break;
case 'm': PARSE_COMPACT(HDR_CONTACT_T); break;
case 'l': PARSE_COMPACT(HDR_CONTENTLENGTH_T); break;
case 'k': PARSE_COMPACT(HDR_SUPPORTED_T); break;
case 'c': PARSE_COMPACT(HDR_CONTENTTYPE_T); break;
case 'o': PARSE_COMPACT(HDR_EVENT_T); break;
case 'x': PARSE_COMPACT(HDR_SESSION_EXPIRES_T); break;
}
goto other;
}
/* the above swtich will never continue here */
dc_end:
/* HDR name entirely found, consume WS till colon */
/* overflow during the "switch-case" parsing ? */
if (p>=end)
goto error;
p = skip_ws(p, end);
if (*p != ':')
goto error;
/* hdr type, name should be already set at this point */
return (p+1);
/*done*/
dc_cont:
/* HDR name partially found, see what's next */
/* overflow during the "switch-case" parsing ? */
if (p>=end)
goto error;
/* hdr type, name should be already set at this point (for partial finding) */
switch (*p) {
case ':' :
return (p+1);
case ' ':
case '\t':
/* consume spaces to the end of name */
p = skip_ws( p+1, end);
if (*p != ':')
goto error;
return (p+1);
/* default: it seems the hdr name continues, fall to "other" */
}
other:
/* Unknown header type */
hdr->type = HDR_OTHER_T;
/* if overflow during the "switch-case" parsing, the "while" will
* exit and we will fall in the "error" section */
while ( p < end ) {
switch (*p) {
case ':' :
hdr->name.len = p - hdr->name.s;
return (p + 1);
case ' ' :
case '\t':
hdr->name.len = p - hdr->name.s;
p = skip_ws(p+1, end);
if (*p != ':')
goto error;
return (p+1);
}
p++;
}
error:
/* No double colon found, error.. */
hdr->type = HDR_ERROR_T;
hdr->name.s = 0;
hdr->name.len = 0;
return 0;
}
