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fileops.c

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/*
  fileops.c

  File operations: is it a file, directory, link, etc.

  Modification history:

  17-Mar-2000  FMP created, to solve problem where fopen() was passed a
  directory, and it succeeded, but we really wanted success only if it
  was a real, useful file.
*/

#if defined (LINUX) || defined (SUN)

#include "fileops.h"            /* these decls */
#include <sys/types.h>
#include <sys/stat.h>

int
rcs_fileop_isfile (const char *path)
{
  struct stat buf;

  /* use stat here, so link to regular file will be considered a file */
  if (stat (path, &buf) < 0)
    {
      return 0;
    }

  if (S_ISREG (buf.st_mode))
    {
      return 1;
    }

  return 0;
}

int
rcs_fileop_isdir (const char *path)
{
  struct stat buf;

  /* use stat here, so link to directory will be considered a directory */
  if (stat (path, &buf) < 0)
    {
      return 0;
    }

  if (S_ISDIR (buf.st_mode))
    {
      return 1;
    }

  return 0;
}

int
rcs_fileop_islink (const char *path)
{
  struct stat buf;

  /* use lstat here, so link to anything will be considered a link */
  if (lstat (path, &buf) < 0)
    {
      return 0;
    }

  if (S_ISLNK (buf.st_mode))
    {
      return 1;
    }

  return 0;
}

#endif /* LINUX, SUN */


#if defined (WIN32)

#include "fileops.h"            /* these decls */

/* FIXME-- for this plat, 'path' is always considered a file */

int
rcs_fileop_isfile (const char *path)
{
  return 1;
}

int
rcs_fileop_isdir (const char *path)
{
  return 0;
}

int
rcs_fileop_islink (const char *path)
{
  return 0;
}

#endif /* WIN32 */

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