added get request check

makefile

@@ -1,4 +1,4 @@
-CC=gcc
+CC=clang
 
 all: webserver.c
 	$(CC) webserver.c -o webserver

webserver.c

@@ -1,7 +1,8 @@
-#include <arpa/inet.h>
-#include <errno.h>
 #include <stdio.h>
 #include <string.h>
+#include <errno.h>
+
+#include <arpa/inet.h>
 #include <sys/socket.h>
 #include <unistd.h>
 
@@ -77,6 +78,16 @@ int main() {
         sscanf(buffer, "%s %s %s", method, uri, version);
         printf("[%s:%u] %s %s %s\n", inet_ntoa(client_addr.sin_addr), ntohs(client_addr.sin_port), method, version, uri);
 
+        // check if request is GET request
+        if (strncmp("GET", method, 7) != 0) {
+            const char resp[] = "HTTP/1.0 400 Bad Request\r\n"
+                                "Server: webserver-c\r\n"
+                                "Content-type: text/html\r\n\r\n";
+            write(newsockfd, resp, strlen(resp));
+        } else {
+            // TO DO: IMPLEMENT FILE READING 
+        }
+
         // write to the socket
         int valwrite = write(newsockfd, resp, strlen(resp));
         if (valwrite < 0) {