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libuv/src/unix/aix-common.c  view on Meta::CPAN

    memcpy(buffer, abspath, *size);
    buffer[*size] = '\0';

    return 0;
  } else {
    /* Case iii). Search PATH environment variable */
    char trypath[PATH_MAX];
    char *clonedpath = NULL;
    char *token = NULL;
    char *path = getenv("PATH");

    if (path == NULL)
      return UV_EINVAL;

    clonedpath = uv__strdup(path);
    if (clonedpath == NULL)
      return UV_ENOMEM;

    token = strtok(clonedpath, ":");
    while (token != NULL) {
      snprintf(trypath, sizeof(trypath) - 1, "%s/%s", token, args);
      if (realpath(trypath, abspath) == abspath) {
        /* Check the match is executable */
        if (access(abspath, X_OK) == 0) {
          abspath_size = strlen(abspath);

          *size -= 1;
          if (*size > abspath_size)
            *size = abspath_size;

          memcpy(buffer, abspath, *size);
          buffer[*size] = '\0';

          uv__free(clonedpath);
          return 0;
        }
      }
      token = strtok(NULL, ":");
    }
    uv__free(clonedpath);

    /* Out of tokens (path entries), and no match found */
    return UV_EINVAL;
  }
}

void uv_free_cpu_info(uv_cpu_info_t* cpu_infos, int count) {
  int i;

  for (i = 0; i < count; ++i) {
    uv__free(cpu_infos[i].model);
  }

  uv__free(cpu_infos);
}


int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
  uv_interface_address_t* address;
  int sockfd, inet6, size = 1;
  struct ifconf ifc;
  struct ifreq *ifr, *p, flg;
  struct sockaddr_dl* sa_addr;

  *count = 0;
  *addresses = NULL;

  if (0 > (sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP))) {
    return UV__ERR(errno);
  }

  if (ioctl(sockfd, SIOCGSIZIFCONF, &size) == -1) {
    uv__close(sockfd);
    return UV__ERR(errno);
  }

  ifc.ifc_req = (struct ifreq*)uv__malloc(size);
  ifc.ifc_len = size;
  if (ioctl(sockfd, SIOCGIFCONF, &ifc) == -1) {
    uv__close(sockfd);
    return UV__ERR(errno);
  }

#define ADDR_SIZE(p) MAX((p).sa_len, sizeof(p))

  /* Count all up and running ipv4/ipv6 addresses */
  ifr = ifc.ifc_req;
  while ((char*)ifr < (char*)ifc.ifc_req + ifc.ifc_len) {
    p = ifr;
    ifr = (struct ifreq*)
      ((char*)ifr + sizeof(ifr->ifr_name) + ADDR_SIZE(ifr->ifr_addr));

    if (!(p->ifr_addr.sa_family == AF_INET6 ||
          p->ifr_addr.sa_family == AF_INET))
      continue;

    memcpy(flg.ifr_name, p->ifr_name, sizeof(flg.ifr_name));
    if (ioctl(sockfd, SIOCGIFFLAGS, &flg) == -1) {
      uv__close(sockfd);
      return UV__ERR(errno);
    }

    if (!(flg.ifr_flags & IFF_UP && flg.ifr_flags & IFF_RUNNING))
      continue;

    (*count)++;
  }

  if (*count == 0) {
    uv__close(sockfd);
    return 0;
  }

  /* Alloc the return interface structs */
  *addresses = uv__malloc(*count * sizeof(uv_interface_address_t));
  if (!(*addresses)) {
    uv__close(sockfd);
    return UV_ENOMEM;
  }
  address = *addresses;

  ifr = ifc.ifc_req;
  while ((char*)ifr < (char*)ifc.ifc_req + ifc.ifc_len) {
    p = ifr;
    ifr = (struct ifreq*)
      ((char*)ifr + sizeof(ifr->ifr_name) + ADDR_SIZE(ifr->ifr_addr));

    if (!(p->ifr_addr.sa_family == AF_INET6 ||
          p->ifr_addr.sa_family == AF_INET))
      continue;

    inet6 = (p->ifr_addr.sa_family == AF_INET6);

    memcpy(flg.ifr_name, p->ifr_name, sizeof(flg.ifr_name));
    if (ioctl(sockfd, SIOCGIFFLAGS, &flg) == -1) {
      uv__close(sockfd);
      return UV_ENOSYS;
    }

    if (!(flg.ifr_flags & IFF_UP && flg.ifr_flags & IFF_RUNNING))
      continue;

    /* All conditions above must match count loop */

    address->name = uv__strdup(p->ifr_name);

    if (inet6)
      address->address.address6 = *((struct sockaddr_in6*) &p->ifr_addr);
    else
      address->address.address4 = *((struct sockaddr_in*) &p->ifr_addr);

    sa_addr = (struct sockaddr_dl*) &p->ifr_addr;
    memcpy(address->phys_addr, LLADDR(sa_addr), sizeof(address->phys_addr));

    if (ioctl(sockfd, SIOCGIFNETMASK, p) == -1) {
      uv__close(sockfd);
      return UV_ENOSYS;
    }

    if (inet6)
      address->netmask.netmask6 = *((struct sockaddr_in6*) &p->ifr_addr);
    else
      address->netmask.netmask4 = *((struct sockaddr_in*) &p->ifr_addr);

    address->is_internal = flg.ifr_flags & IFF_LOOPBACK ? 1 : 0;

    address++;
  }

#undef ADDR_SIZE

  uv__close(sockfd);
  return 0;
}


void uv_free_interface_addresses(uv_interface_address_t* addresses,
  int count) {
  int i;

  for (i = 0; i < count; ++i) {
    uv__free(addresses[i].name);
  }

  uv__free(addresses);
}