/*

 * Test file access.

 *

 * Copyright (C) 2020, 2021, 2022 Paul Boddie <paul@boddie.org.uk>

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License as

 * published by the Free Software Foundation; either version 2 of

 * the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA  02110-1301, USA

 */

#include <l4/re/env.h>

#include <l4/sys/err.h>

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#include <fsclient/client.h>

#include <systypes/fcntl.h>

int main(int argc, char *argv[])

{

  if (argc < 2)

  {

    printf("Need directory names.\n");

    return 1;

  }

  for (int i = 1; i < argc; i++)

  {

    char *dirname = argv[i];

    printf("Opening %s...\n", dirname);

    file_t *reader = client_opendir(dirname);

    if (reader == NULL)

    {

      printf("Could not read from directory: %s\n", dirname);

      continue;

    }

    printf("Reading...\n");

    struct dirent *dirent;

    while ((dirent = client_readdir(reader)) != NULL)

    {

      char *filename = dirent->d_name;

      if (!strlen(filename) || (filename[0] == '.'))

        continue;

      char path[strlen(filename) + strlen(dirname) + 2];

      sprintf(path, "%s/%s", dirname, filename);

      printf("Attempt to read %s...\n", filename);

      file_t *file = client_open(path, O_RDONLY);

      if (file == NULL)

        printf("Could not open file: %s\n", filename);

      else

      {

        char buffer[32];

        offset_t nread = client_read(file, buffer, 32);

        fputs("Start of file: ", stdout);

        fwrite(buffer, sizeof(char), nread, stdout);

        fputs("\n", stdout);

        client_close(file);

      }

      free(dirent);

    }

    printf("Directory shown.\n");

  }

  return 0;

}

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