From e592bbc0fe71429104c1d7de8c35156185a9e13f Mon Sep 17 00:00:00 2001
From: Quentin Rameau <quinq@fifth.space>
Date: Tue, 11 Jul 2017 13:36:40 +0200
Subject: [PATCH] Integrate compiled regex into vhost array

---
 config.def.h |  9 +++++----
 quark.c      | 17 +++++------------
 2 files changed, 10 insertions(+), 16 deletions(-)

diff --git a/config.def.h b/config.def.h
index 563fcb9..963821e 100644
--- a/config.def.h
+++ b/config.def.h
@@ -13,10 +13,11 @@ static const int   maxnprocs = 512;
 #define HEADER_MAX 4096
 #define FIELD_MAX  200
 
-static const struct {
-	char *name;
-	char *regex;
-	char *dir;
+static struct {
+	const char *name;
+	const char *regex;
+	const char *dir;
+	regex_t re;
 } vhost[] = {
 	{ "example.org", "^(www.)example.org$", "/example.org" },
 };
diff --git a/quark.c b/quark.c
index 2b59f9d..6f49ecc 100644
--- a/quark.c
+++ b/quark.c
@@ -102,9 +102,6 @@ static char *status_str[] = {
 	[S_VERSION_NOT_SUPPORTED] = "HTTP Version not supported",
 };
 
-/* vhost regex compilate */
-static regex_t vhost_regex[LEN(vhost)];
-
 long long strtonum(const char *, long long, long long, const char **);
 
 static char *
@@ -566,14 +563,10 @@ sendresponse(int fd, struct request *r)
 	/* match vhost */
 	if (vhosts) {
 		for (i = 0; i < LEN(vhost); i++) {
-			if (!regexec(&vhost_regex[i], r->field[REQ_HOST], 0,
-			             NULL, 0)) {
-				break;
-			}
-		}
-		if (i < LEN(vhost)) {
-			/* switch to vhost directory */
-			if (chdir(vhost[i].dir) < 0) {
+			if (!regexec(&vhost[i].re, r->field[REQ_HOST], 0,
+			    NULL, 0) &&
+			    /* switch to vhost directory */
+			    chdir(vhost[i].dir) < 0) {
 				return sendstatus(fd, (errno == EACCES) ?
 				                  S_FORBIDDEN : S_NOT_FOUND);
 			}
@@ -971,7 +964,7 @@ main(int argc, char *argv[])
 	/* compile and check the supplied vhost regexes */
 	if (vhosts) {
 		for (i = 0; i < LEN(vhost); i++) {
-			if (regcomp(&vhost_regex[i], vhost[i].regex,
+			if (regcomp(&vhost[i].re, vhost[i].regex,
 			            REG_ICASE | REG_NOSUB)) {
 				die("%s: regcomp '%s': invalid regex\n", argv0,
 				    vhost[i].regex);