Function tr_parse_via

transformations.c:3367–3441

int tr_parse_via(str* in, trans_t *t)
{
	char *p;
	str name;
	tr_param_t *tp = NULL;

	if(in==NULL || in->s==NULL || t==NULL)
		return -1;
	p = in->s;
	name.s = in->s;

	/* find next token */
	while(*p && *p!=TR_PARAM_MARKER && *p!=TR_RBRACKET) p++;
	if(*p=='\0')
	{
		LM_ERR("invalid transformation: %.*s\n", in->len, in->s);
		goto error;
	}
	name.len = p - name.s;
	trim(&name);

	if(name.len==4 && strncasecmp(name.s, "name", 4)==0)
	{
		t->subtype = TR_VIA_NAME;
		return 0;
	} else if(name.len==7 && strncasecmp(name.s, "version", 7)==0)
	{
		t->subtype = TR_VIA_VERSION;
		return 0;
	} else if(name.len==9 && strncasecmp(name.s, "transport", 9)==0) {
		t->subtype = TR_VIA_TRANSPORT;
		return 0;
	} else if((name.len==4 && strncasecmp(name.s, "host", 4)==0)
			|| (name.len==6 && strncasecmp(name.s, "domain", 6)==0)) {
		t->subtype = TR_VIA_HOST;
		return 0;
	} else if(name.len==4 && strncasecmp(name.s, "port", 4)==0) {
		t->subtype = TR_VIA_PORT;
		return 0;
	} else if(name.len==6 && strncasecmp(name.s, "params", 6)==0) {
		t->subtype = TR_VIA_PARAMS;
		return 0;
	} else if(name.len==5 && strncasecmp(name.s, "param", 5)==0) {
		t->subtype = TR_VIA_PARAM;
		if(*p!=TR_PARAM_MARKER)
		{
			LM_ERR("invalid param transformation: %.*s\n", in->len, in->s);
			goto error;
		}
		p++;
		if (tr_parse_sparam(p, in, &tp, 0) == NULL)
			goto error;
		t->params = tp;

		return 0;
	} else if(name.len==7 && strncasecmp(name.s, "comment", 7)==0) {
		t->subtype = TR_VIA_COMMENT;
		return 0;