source: trunk/athena/bin/athdir/src/athdir.c @ 25919

/* Copyright 1998 by the Massachusetts Institute of Technology.
 *
 * Permission to use, copy, modify, and distribute this
 * software and its documentation for any purpose and without
 * fee is hereby granted, provided that the above copyright
 * notice appear in all copies and that both that copyright
 * notice and this permission notice appear in supporting
 * documentation, and that the name of M.I.T. not be used in
 * advertising or publicity pertaining to distribution of the
 * software without specific, written prior permission.
 * M.I.T. makes no representations about the suitability of
 * this software for any purpose.  It is provided "as is"
 * without express or implied warranty.
 */

static const char rcsid[] = "$Id: athdir.c,v 1.4 1999-09-15 23:57:14 danw Exp $";

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <athdir.h>

char *progName;

void usage(void);
void repeatflag(char *option);

int main(int argc, char **argv)
{
  int num_dirs = 0, flags = 0;
  char **dir_list, *type = NULL, *athsys = NULL, *hosttype = NULL;
  char *auxconvention = NULL, *recsep = NULL, **ptr;
  char **path_list;
  int i;
  int match = 0;

  progName = strrchr(argv[0], '/');
  if (progName != NULL)
    progName++;
  else
    progName = argv[0];

  if (argc == 1)
    usage();

  if (argc)
    dir_list = malloc((argc + 1) * sizeof(char *));

  if (dir_list == NULL)
    {
      fprintf(stderr, "%s: out of memory\n", progName);
      exit(1);
    }

  if (argv[1][0] != '-')
    {
      if (argc > 3)
        usage();

      dir_list[num_dirs++] = argv[1];

      if (argv[2])
        {
          if (argv[2][0] == '-')
            usage();

          type = argv[2];
        }
      else
        type = "bin";
    }
  else
    {
      argv++;

      while (*argv)
        {
          if (**argv != '-' || (*argv)[2] != '\0')
            {
              fprintf(stderr, "%s: unknown option: %s\n", progName, *argv);
              usage();
            }

          switch((*argv)[1])
            {
            case 't':
              if (type)
                repeatflag(*argv);
              argv++;
              if (*argv == NULL)
                usage();
              type = *argv++;
              break;

            case 'p':
              if (num_dirs != 0)
                repeatflag(*argv);

              argv++;
              if (*argv == NULL)
                usage();
              while (*argv != NULL && **argv != '-')
                dir_list[num_dirs++] = *argv++;
              break;

            case 'e':
              if (flags & ATHDIR_SUPPRESSEDITORIALS)
                repeatflag(*argv);
              argv++;
              flags |= ATHDIR_SUPPRESSEDITORIALS;
              break;

            case 'c':
              if (flags & ATHDIR_SUPPRESSSEARCH)
                repeatflag(*argv);
              argv++;
              flags |= ATHDIR_SUPPRESSSEARCH;
              break;

            case 'l':
              if (flags & ATHDIR_LISTSEARCHDIRECTORIES)
                repeatflag(*argv);
              argv++;
              flags |= ATHDIR_LISTSEARCHDIRECTORIES;
              break;

            case 's':
              if (athsys)
                repeatflag(*argv);
              argv++;
              if (*argv == NULL)
                usage();
              athsys = *argv++;
              break;

            case 'm':
              if (hosttype != NULL)
                repeatflag(*argv);
              argv++;
              if (*argv == NULL)
                usage();
              hosttype = *argv++;
              break;

            case 'f':
              if (auxconvention)
                repeatflag(*argv);
              argv++;
              if (*argv == NULL)
                usage();
              auxconvention = *argv++;
              break;

            case 'r':
              if (recsep != NULL)
                repeatflag(*argv);
              argv++;
              if (*argv == NULL)
                usage();
              recsep = *argv++;
              break;

            case 'd':
              if (flags & ATHDIR_MACHINEDEPENDENT)
                repeatflag(*argv);
              argv++;
              flags |= ATHDIR_MACHINEDEPENDENT;
              break;

            case 'i':
              if (flags & ATHDIR_MACHINEINDEPENDENT)
                repeatflag(*argv);
              argv++;
              flags |= ATHDIR_MACHINEINDEPENDENT;
              break;

            default:
              fprintf(stderr, "%s: unknown option: %s\n", progName, *argv);
              usage();
              break;
            }
        }
    }

  if (!num_dirs)
    dir_list[num_dirs++] = NULL;

  /* Default record separator is a newline. */
  if (!recsep)
    recsep = "\n";

  for (i = 0; i < num_dirs; i++)
    {
      path_list = athdir_get_paths(dir_list[i], type, athsys, NULL, hosttype,
                                   auxconvention, flags);
      if (path_list != NULL)
        {
          for (ptr = path_list; *ptr != NULL; ptr++)
            {
              if (match == 1)
                fprintf(stdout, "%s", recsep);
              match = 1;
              fprintf(stdout, "%s", *ptr);
            }

          athdir_free_paths(path_list);
        }
    }

  if (match)
    fprintf(stdout, "\n");

#ifdef DEBUG
  fprintf(stdout, "%s ", progName);
  if (type != NULL)
    fprintf(stdout, "-t %s ", type);
  if (num_dirs)
    {
      fprintf(stdout, "-p ");
      for (i = 0; i < num_dirs; i++)
        fprintf(stdout, "%s ", dir_list[i]);
    }
  if (ATHDIR_SUPPRESSEDITORIALS & flags)
    fprintf(stdout, "-e ");
  if (ATHDIR_SUPPRESSSEARCH & flags)
    fprintf(stdout, "-c ");
  if (ATHDIR_LISTSEARCHDIRECTORIES & flags)
    fprintf(stdout, "-l ");
  fprintf(stdout, "\n");
#endif

  return match == 0;
}

void usage(void)
{
  fprintf(stderr, "usage: %s path [type]\n", progName);
  fprintf(stderr,
          "   or: %s [-t type] [-p path ...] [-e] [-c] [-l] [-d | -i]\n",
          progName);
  fprintf(stderr,
          "       [-r recsep] [-f format] [-s sysname] [-m machtype]\n");
  exit(1);
}

void repeatflag(char *option)
{
  fprintf(stderr, "%s: %s already specified.\n", progName, option);
  usage();
}