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siliconforks |
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/* |
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http-server-empty-header-value.c - HTTP server that outputs a header with an empty value |
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siliconforks |
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Copyright (C) 2009, 2010 siliconforks.com |
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siliconforks |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License along |
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with this program; if not, write to the Free Software Foundation, Inc., |
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*/ |
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#include <config.h> |
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#include <assert.h> |
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#include <string.h> |
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#include "http-server.h" |
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int main(void) { |
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#ifdef __MINGW32__ |
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WSADATA data; |
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if (WSAStartup(MAKEWORD(1, 1), &data) != 0) { |
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return 1; |
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} |
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#endif |
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SOCKET s = socket(PF_INET, SOCK_STREAM, 0); |
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assert(s != INVALID_SOCKET); |
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int optval = 1; |
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setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (const char *) &optval, sizeof(optval)); |
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struct sockaddr_in a; |
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a.sin_family = AF_INET; |
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a.sin_port = htons(8000); |
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a.sin_addr.s_addr = htonl(INADDR_LOOPBACK); |
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int result = bind(s, (struct sockaddr *) &a, sizeof(a)); |
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assert(result == 0); |
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result = listen(s, 5); |
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assert(result == 0); |
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for (;;) { |
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struct sockaddr_in client_address; |
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size_t size = sizeof(client_address); |
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int client_socket = accept(s, (struct sockaddr *) &client_address, &size); |
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assert(client_socket > 0); |
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/* read request */ |
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int state = 0; |
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while (state != 2) { |
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uint8_t buffer[8192]; |
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ssize_t bytes_read = recv(client_socket, buffer, 8192, 0); |
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assert(bytes_read > 0); |
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for (int i = 0; i < bytes_read && state != 2; i++) { |
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uint8_t byte = buffer[i]; |
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switch (state) { |
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case 0: |
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if (byte == '\n') { |
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state = 1; |
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} |
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else { |
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state = 0; |
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} |
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break; |
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case 1: |
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if (byte == '\n') { |
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state = 2; |
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} |
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else if (byte == '\r') { |
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state = 1; |
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} |
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else { |
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state = 0; |
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} |
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} |
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} |
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} |
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/* send response */ |
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char * message = "HTTP/1.1 200 OK\r\nContent-Encoding: \r\nConnection: close\r\nContent-type: text/html\r\n\r\nHello\n"; |
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size_t message_length = strlen(message); |
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ssize_t bytes_sent = send(client_socket, message, message_length, 0); |
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assert(bytes_sent == (ssize_t) message_length); |
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closesocket(client_socket); |
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} |
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return 0; |
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} |