view release on metacpan or  search on metacpan

libuv/src/unix/core.c  view on Meta::CPAN

  uv__free(buf);

  return 0;
}


void uv_os_free_passwd(uv_passwd_t* pwd) {
  if (pwd == NULL)
    return;

  /*
    The memory for name, shell, and homedir are allocated in a single
    uv__malloc() call. The base of the pointer is stored in pwd->username, so
    that is the field that needs to be freed.
  */
  uv__free(pwd->username);
  pwd->username = NULL;
  pwd->shell = NULL;
  pwd->homedir = NULL;
}


int uv_os_get_passwd(uv_passwd_t* pwd) {
  return uv__getpwuid_r(pwd);
}


int uv_translate_sys_error(int sys_errno) {
  /* If < 0 then it's already a libuv error. */
  return sys_errno <= 0 ? sys_errno : -sys_errno;
}


int uv_os_getenv(const char* name, char* buffer, size_t* size) {
  char* var;
  size_t len;

  if (name == NULL || buffer == NULL || size == NULL || *size == 0)
    return UV_EINVAL;

  var = getenv(name);

  if (var == NULL)
    return UV_ENOENT;

  len = strlen(var);

  if (len >= *size) {
    *size = len + 1;
    return UV_ENOBUFS;
  }

  memcpy(buffer, var, len + 1);
  *size = len;

  return 0;
}


int uv_os_setenv(const char* name, const char* value) {
  if (name == NULL || value == NULL)
    return UV_EINVAL;

  if (setenv(name, value, 1) != 0)
    return UV__ERR(errno);

  return 0;
}


int uv_os_unsetenv(const char* name) {
  if (name == NULL)
    return UV_EINVAL;

  if (unsetenv(name) != 0)
    return UV__ERR(errno);

  return 0;
}


int uv_os_gethostname(char* buffer, size_t* size) {
  /*
    On some platforms, if the input buffer is not large enough, gethostname()
    succeeds, but truncates the result. libuv can detect this and return ENOBUFS
    instead by creating a large enough buffer and comparing the hostname length
    to the size input.
  */
  char buf[UV_MAXHOSTNAMESIZE];
  size_t len;

  if (buffer == NULL || size == NULL || *size == 0)
    return UV_EINVAL;

  if (gethostname(buf, sizeof(buf)) != 0)
    return UV__ERR(errno);

  buf[sizeof(buf) - 1] = '\0'; /* Null terminate, just to be safe. */
  len = strlen(buf);

  if (len >= *size) {
    *size = len + 1;
    return UV_ENOBUFS;
  }

  memcpy(buffer, buf, len + 1);
  *size = len;
  return 0;
}


uv_os_fd_t uv_get_osfhandle(int fd) {
  return fd;
}

int uv_open_osfhandle(uv_os_fd_t os_fd) {
  return os_fd;
}

uv_pid_t uv_os_getpid(void) {
  return getpid();
}


uv_pid_t uv_os_getppid(void) {
  return getppid();
}


int uv_os_getpriority(uv_pid_t pid, int* priority) {
  int r;

  if (priority == NULL)
    return UV_EINVAL;