text: // SPDX-License-Identifier: Apache-2.0
  
  /*
   * Copyright 2020 Joel E. Anderson
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #include <errno.h>
  #include <stddef.h>
  #include <unistd.h>
  #include "private/config/have_unistd_gethostname.h"
  #include "private/config/locale/wrapper.h"
  #include "private/error.h"
  
  int
  unistd_gethostname( char *buffer, size_t namelen ) {
    int result;
  
    result = gethostname( buffer, namelen );
    buffer[namelen - 1] = '\0';
  
    if( result == -1 ) {
      raise_gethostname_failure( L10N_GETHOSTNAME_FAILED_ERROR_MESSAGE,
                                 errno,
                                 L10N_ERRNO_ERROR_CODE_TYPE );
    }
  
    return result;
  }
  