first commit! 🎉

README.md

@@ -0,0 +1,3 @@
+# meownet 😺
+
+an awesome web server that meows at you

src/main.c

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+#include <stdio.h>
+#include <stdint.h>
+#include <winsock2.h>
+#include <ws2tcpip.h>
+
+#define BUFFER_SIZE (1024 * 1024)
+
+void simple_http_ok(char *response, size_t *response_len);
+
+int main() {
+
+        printf("hello world!~\n");
+
+        int result = 0;
+        WSADATA wsaData = {0};
+        struct sockaddr_in service;
+
+        const char* address = "127.0.0.1";
+        int port = 8080;
+
+        result = WSAStartup(MAKEWORD(2, 2), &wsaData);
+        if (result != 0) {
+                printf("WSAStartup failed: %d\n", result);
+                return 1;
+        }
+
+        SOCKET sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+        if (sock == INVALID_SOCKET) {
+                printf("failed to create socket! (%d)\n", WSAGetLastError());
+                WSACleanup();
+                return 1;
+        }
+
+        printf("socket created successfully!\n");
+
+        service.sin_family = AF_INET;
+        service.sin_addr.s_addr = inet_addr(address);
+        service.sin_port = htons(port);
+
+        if (bind(sock, (SOCKADDR*) &service, sizeof(service)) == SOCKET_ERROR) {
+                closesocket(sock);
+                printf("failed to bind to %s:%d: %ld\n", address, port, WSAGetLastError());
+                WSACleanup();
+                return 1;
+        }
+
+        /*
+        result = connect(sock, (SOCKADDR*) &service, sizeof(client_service));
+        if (result == SOCKET_ERROR) {
+                closesocket(sock);
+                printf("unable to connect to the server: %ld\n", WSAGetLastError());
+                WSACleanup();
+                return 1;
+        }
+        */
+
+        if (listen(sock, 1) == SOCKET_ERROR) {
+                closesocket(sock);
+                printf("failed to bind to %s:%d: %ld\n", address, port, WSAGetLastError());
+                WSACleanup();
+                return 1;
+        }
+
+        /*
+        char address[INET_ADDRSTRLEN];
+        InetNtop(AF_INET, &(service.sin_addr.s_addr), address, INET_ADDRSTRLEN);
+        ntohs(service.sin_port)
+        */
+        printf("now listening on %s:%d!\n", address, port);
+
+        char running = 1;
+
+        do {
+                SOCKET accept_sock = accept(sock, NULL, NULL);
+                if (accept_sock == INVALID_SOCKET) {
+                        closesocket(sock);
+                        printf("failed to accept socket connection: %ld\n", WSAGetLastError());
+                        WSACleanup();
+                        return 1;
+                } else {
+                        printf("client connected!\n");
+                }
+
+                char recvbuf[512];
+                int received = 0;
+                do {
+                        received = recv(accept_sock, recvbuf, 512, 0);
+                        char end[] = "\r\n\r\n";
+                        char lastfour[4];
+
+                        if (received > 0) {
+                                printf("bytes received: %d\n", received);
+                                printf("< ");
+                                for (int i = 0; i < received; i++) {
+                                        printf("%c", recvbuf[i]);
+                                        if (recvbuf[i] == '\n') {
+                                                printf("< ");
+                                        }
+                                        for (int i = 0; i < 3; i++) {
+                                                lastfour[i] = lastfour[i + 1];
+                                        }
+                                        lastfour[3] = recvbuf[i];
+                                }
+
+                                char matches = 1;
+
+                                for (int i = 0; i < 4; i++) {
+                                        if (lastfour[i] != end[i]) {
+                                                matches = 0;
+                                                break;
+                                        }
+                                }
+
+                                if (matches) break;
+                        } else if (received == 0) {
+                                printf("connection closed.\n");
+                        } else {
+                                printf("recv failed: %d\n", WSAGetLastError());
+                        }
+                } while (received > 0);
+
+                char *response = (char *)malloc(BUFFER_SIZE * 2 * sizeof(char));
+                size_t response_len;
+                simple_http_ok(response, &response_len);
+
+                send(accept_sock, response, response_len, 0);
+
+                free(response);
+
+                result = closesocket(accept_sock);
+                if (result == SOCKET_ERROR) {
+                        printf("failed to close socket properly: %d\n", WSAGetLastError());
+                        closesocket(sock);
+                        WSACleanup();
+                        return 1;
+                }
+        } while (running);
+
+        // close responsibly! <3
+        result = closesocket(sock);
+        if (result == SOCKET_ERROR) {
+                printf("failed to close socket properly: %d\n", WSAGetLastError());
+                WSACleanup();
+                return 1;
+        }
+
+        return 0;
+
+}
+
+void simple_http_ok(char *response, size_t *response_len) {
+        // build header
+        char *header = (char *)malloc(BUFFER_SIZE * sizeof(char));
+        snprintf(header, BUFFER_SIZE,
+                "HTTP/1.1 200 OK\r\n"
+                "Content-Type: text/plain; charset=utf-8\r\n"
+                "Content-Length: 9\r\n"
+                "\r\n"
+                "meow 😺");
+
+        *response_len = 0;
+        memcpy(response, header, strlen(header));
+        *response_len += strlen(header);
+
+        free(header);
+}