kc3-lang/kc3/kc3_http/socket.c

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• Hash : 3b2dd0ce
  Author : Baptiste
  Date : 2024-07-19T16:59:33
  

  socket handling work in progress

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• kc3_http/socket.c

• /* kc3
   * Copyright 2022,2023,2024 kmx.io <contact@kmx.io>
   *
   * Permission is hereby granted to use this software granted the above
   * copyright notice and this permission paragraph are included in all
   * copies and substantial portions of this software.
   *
   * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
   * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
   * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
   * THIS SOFTWARE.
   */
  #include <errno.h>
  #include <string.h>
  #include <sys/socket.h>
  #include <netdb.h>
  #include <libkc3/kc3.h>
  #include "socket.h"
  
  int * socket_init_listen(int *s, const s_str *host, u16 port)
  {
      struct sockaddr *addr;
      socklen_t addr_len;
      sw e;
      struct hostent *hostent;
      assert(s);
      assert(host);
      hostent = gethostbyname2(host->ptr.pchar, AF_INET);
      if (! hostent) {
          e = errno;
          err_write_1("socket_init_listen: gethostbyname2: ");
          err_puts(strerror(e));
          assert(!"socket_init_listen: gethostbyname2");
          return NULL;
      }
      addr = (struct sockaddr *) hostent->h_addr_list[0];
      addr_len = hostent->h_length;
      socket = socket(addr->sa_family, SOCK_STREAM, 0);
      if (socket < 0) {
          e = errno;
          err_write_1("socket_init_listen: socket: ");
          err_puts(strerror(e));
          assert(! "socket_init_listen: socket");
          return NULL;
      }
      addr->port = htons(port);
      if (bind(socket, addr, addr_len) < 0) {
          e = errno;
          err_write_1("socket_init_listen: bind: ");
          err_puts(strerror(e));
          assert(! "socket_init_listen: bind");
          return NULL;
      }
      return s;
  }

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