Record the http-header-spec for wildcard'ed variables.

lib/libvcl/vcc_action.c

@@ -166,7 +166,7 @@ parse_unset(struct vcc *tl)
 	vp = vcc_FindVar(tl, tl->t, 1, "cannot be unset");
 	ERRCHK(tl);
 	assert(vp != NULL);
-	if (vp->fmt != STRING || vp->hdr == NULL) {
+	if (vp->fmt != STRING || vp->http == NULL) {
 		vsb_printf(tl->sb,
 		    "Only http header variables can be unset.\n");
 		vcc_ErrWhere(tl, tl->t);

lib/libvcl/vcc_compile.h

@@ -178,6 +178,7 @@ struct var {
 	unsigned		r_methods;
 	const char		*lname;
 	unsigned		w_methods;
+	const char		*http;
 	const char		*hdr;
 };
 

lib/libvcl/vcc_var.c

@@ -61,15 +61,15 @@ vcc_Var_Wildcard(struct vcc *tl, const struct token *t, const struct symbol *wc)
 	v->r_methods = vh->r_methods;
 	v->w_methods = vh->w_methods;
 	v->fmt = STRING;
-	v->hdr = vh->hdr;
+	v->http = vh->http;
 	l = strlen(v->name + vh->len) + 1;
 
-	bprintf(buf, "VRT_GetHdr(sp, %s, \"\\%03o%s:\")",
-	    v->hdr, (unsigned)l, v->name + vh->len);
+	bprintf(buf, "\\%03o%s:", (unsigned)l, v->name + vh->len);
+	v->hdr = TlDup(tl, buf);
+	bprintf(buf, "VRT_GetHdr(sp, %s, \"%s\")", v->http, v->hdr);
 	v->rname = TlDup(tl, buf);
 
-	bprintf(buf, "VRT_SetHdr(sp, %s, \"\\%03o%s:\", ",
-	    v->hdr, (unsigned)l, v->name + vh->len);
+	bprintf(buf, "VRT_SetHdr(sp, %s, \"%s\", ", v->http, v->hdr);
 	v->lname = TlDup(tl, buf);
 
 	sym = VCC_AddSymbolTok(tl, t, SYM_VAR);