kc3-lang/kc3/http/socket_buf.c

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• Hash : f8120036
  Author : Baptiste
  Date : 2024-07-25T16:12:50
  

  http testing (work in progress)

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• http/socket_buf.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 <netdb.h>
  #include <netinet/in.h>
  #include <unistd.h>
  #include <libkc3/kc3.h>
  #include "socket_addr.h"
  #include "socket_buf.h"
  
  void socket_buf_clean (s_socket_buf *sb)
  {
    assert(sb);
    close(sb->sockfd);
    socket_addr_delete(sb->addr);
    buf_rw_clean(&sb->buf_rw);
  }
  
  s_socket_buf * socket_buf_init (s_socket_buf *sb, t_socket sockfd,
                                  struct sockaddr *addr,
                                  u32 addr_len)
  {
    s_socket_buf tmp = {0};
    assert(sb);
    assert(sockfd >= 0);
    assert(addr);
    assert(addr_len);
    if (! buf_rw_init_alloc(&tmp.buf_rw, BUF_SIZE)) {
      err_puts("socket_buf_init: buf_rw_init_alloc");
      assert(! "socket_buf_init: buf_rw_init_alloc");
      return NULL;
    }
    tmp.buf_rw.r.user_ptr = sb;
    tmp.buf_rw.w.user_ptr = sb;
    tmp.sockfd = sockfd;
    tmp.addr = socket_addr_new_copy(addr, addr_len);
    if (! tmp.addr) {
      err_puts("socket_buf_init: socket_addr_new_copy");
      assert(! "socket_buf_init: socket_addr_new_copy");
      return NULL;
    }
    tmp.addr_len = addr_len;
    *sb = tmp;
    return sb;
  }
  
  s_socket_buf * socket_buf_init_accept (s_socket_buf *sb, p_socket listening)
  {
    struct sockaddr        *addr;
    struct sockaddr_storage addr_storage = {0};
    socklen_t               addr_len;
    sw e;
    t_socket sockfd;
    s_socket_buf tmp = {0};
    assert(sb);
    assert(listening);
    addr = (struct sockaddr *) &addr_storage;
    addr_len = sizeof(addr_storage);
    sockfd = accept(*listening, addr, &addr_len);
    if (sockfd < 0) {
      e = errno;
      err_write_1("socket_buf_init_accept: ");
      err_inspect_s32(listening);
      err_write_1(": accept: ");
      err_puts(strerror(e));
      assert(! "socket_buf_init_accept: accept");
      return NULL;
    }
    if (! socket_buf_init(&tmp, sockfd, addr, addr_len)) {
      err_puts("socket_buf_init_accept: socket_buf_init");
      assert(! "socket_buf_init_accept: socket_buf_init");
      close(sockfd);
      return NULL;
    }
    *sb = tmp;
    return sb;
  }
  
  s_socket_buf * socket_buf_init_connect (s_socket_buf *sb,
                                          const s_str *host,
                                          const s_str *service)
  {
    struct addrinfo hints = {0};
    struct addrinfo *res;
    struct addrinfo *res0;
    s32 e;
    const char *error_reason = "error";
    t_socket sockfd;
    s_socket_buf tmp;
    assert(sb);
    assert(host);
    assert(service);
    hints.ai_family = AF_INET;
    e = getaddrinfo(host->ptr.pchar, service->ptr.pchar, &hints, &res0);
    if (e) {
      err_write_1("socket_buf_init_connect(");
      err_write_1(host->ptr.pchar);
      err_write_1(", ");
      err_write_1(service->ptr.pchar);
      err_write_1("): getaddrinfo: ");
      err_puts(gai_strerror(e));
      assert(! "socket_buf_init_connect: getaddrinfo");
      return NULL;
    }
    e = 0;
    sockfd = -1;
    res = res0;
    while (res) {
      sockfd = socket(res->ai_family, SOCK_STREAM, res->ai_protocol);
      if (sockfd < 0) {
        e = errno;
        error_reason = "socket_buf_init_connect: socket: ";
        goto next;
      }
      if (connect(sockfd, res->ai_addr, res->ai_addrlen) < 0) {
        e = errno;
        error_reason = "socket_buf_init_connect: connect: ";
        goto next;
      }
      break;
    next:
      res = res->ai_next;
    }
    if (sockfd < 0) {
      err_write_1(error_reason);
      err_puts(strerror(e));
      assert(! "socket_buf_init_connect");
      return NULL;
    }
    if (! socket_buf_init(&tmp, sockfd, res->ai_addr, res->ai_addrlen)) {
      err_puts("socket_buf_init_connect: socket_buf_init");
      assert(! "socket_buf_init_connect: socket_buf_init");
      return NULL;
    }
    freeaddrinfo(res0);
    *sb = tmp;
    return sb;
  }
  

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