Added error checking with sending responses

example/logs

@@ -43,3 +43,11 @@
 [2022-01-31T03:25:44Z] swebs started
 [2022-01-31T03:25:48Z] Couldn't find swebs user
 [2022-01-31T03:25:48Z] swebs started
+[2022-01-31T03:35:13Z] Couldn't find swebs user
+[2022-01-31T03:35:13Z] swebs started
+[2022-01-31T03:35:35Z] Couldn't find swebs user
+[2022-01-31T03:35:35Z] swebs started
+[2022-01-31T03:36:20Z] Couldn't find swebs user
+[2022-01-31T03:36:20Z] swebs started
+[2022-01-31T03:37:29Z] Couldn't find swebs user
+[2022-01-31T03:37:29Z] swebs started

example/site/easteregg.html

@@ -1 +1,3 @@
 <h1>You found the easter egg!</h1>
+<img src="/egg.png">
+<p>There should be a picture of an egg here, but it doesn't show. go to 127.0.0.1:8000/egg.png to see it.</p>

example/sitefile

@@ -10,5 +10,6 @@ read /blog/.* site/blog/
 #/blog/2021-1-25.html turns into site/blog//blog/2021-1-25.html
 set host 127.0.0.1:8000
 read / site/easteregg.html
+read /egg.png site/egg.png
 set host .*
 read /alldomains site/alldomains.html

src/connections.c

@@ -200,17 +200,19 @@ static int processChar(Connection *conn, char c, Sitefile *site) {
 	    conn->receivedBody >= conn->bodylen)
 		getResponse(conn, site);
 	if (conn->progress == SEND_RESPONSE) {
-		for (;;) {
+		while (conn->len > 0) {
 			char buffer[1024];
 			size_t readLen = read(conn->fd, buffer, sizeof(buffer));
-			if (readLen == 0)
-				break;
 			if (readLen < 0)
 				return 1;
+			while (readLen > 0) {
 				size_t writeLen = sendStream(conn->stream,
 						buffer, readLen);
-			if (writeLen < readLen)
+				if (writeLen < 0)
 					return 1;
+				readLen -= writeLen;
+			}
+			conn->len -= readLen;
 		}
 		resetConnection(conn);
 	}

src/include/connections.h

@@ -55,7 +55,8 @@ typedef struct Connection {
 	size_t receivedBody;
 
 	int fd;
-	//the fd of the response
+	size_t len;
+	//the fd and length of the response left to send
 
 	char *currLine;
 	//persistent

src/responses.c

@@ -95,6 +95,7 @@ static int readResponse(Connection *conn, char *path) {
 		goto error;
 	lseek(fd, 0, SEEK_SET);
 	sendHeader(conn, CODE_200, len);
+	conn->len = len;
 	return fd;
 error:
 	sendErrorResponse(conn, ERROR_500);