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- #include <arpa/inet.h>
- #include <netdb.h>
- #include <openssl/ssl.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <sys/socket.h>
- #include <sys/types.h>
- #include <unistd.h>
-
- // TODO: fix over buf overflow
- void fillHttpReq(char *buf, char *host, size_t size) {
- char *req = "GET / HTTP/1.1\r\nHost: \0";
- memcpy(buf, req, strlen(req));
- memcpy(buf + strlen(buf), host, strlen(host));
- memcpy(buf + strlen(buf), "\r\n\r\n", strlen("\r\n\r\n"));
- }
-
- int main(int argc, char **argv) {
- int status;
- struct addrinfo hints;
- struct addrinfo *servinfo;
-
- if (argc != 2) {
- fprintf(stderr, "Usage: %s <hostname>", argv[0]);
- exit(1);
- }
-
- memset(&hints, 0, sizeof hints);
- hints.ai_family = AF_UNSPEC;
- hints.ai_socktype = SOCK_STREAM;
-
- if ((status = getaddrinfo(argv[1], "443", &hints, &servinfo)) != 0) {
- fprintf(stderr, "getaddrinfo error: %s\n", gai_strerror(status));
- exit(1);
- }
-
- int s = socket(servinfo->ai_family, servinfo->ai_socktype,
- servinfo->ai_protocol);
- printf("%d\n", s);
-
- int connection;
- if ((connection = connect(s, servinfo->ai_addr, servinfo->ai_addrlen)) ==
- -1) {
- fprintf(stderr, "connection error: %d\n", connection);
- exit(1);
- }
-
- SSL_load_error_strings();
- SSL_library_init();
- SSL_CTX *ssl_ctx = SSL_CTX_new(SSLv23_client_method());
-
-
- SSL *conn = SSL_new(ssl_ctx);
- SSL_set_fd(conn, s);
-
- int err;
- if ((err = SSL_connect(conn)) != 1) {
- fprintf(stderr, "SSL_connect error: %d\n", err);
- exit(1);
- }
-
- char buf[10000];
- fillHttpReq(buf, argv[1], 10000);
- printf("%s\n", buf);
- // TODO: send throw a loop
- SSL_write(conn, buf, 10000);
- memset(buf, 0, 10000);
- SSL_read(conn, buf, 10000);
- printf("%s\n", buf);
- close(s);
- freeaddrinfo(servinfo);
- }
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