Some algorithms adapted from GNU Emacs. */
#ifdef HAVE_CONFIG_H
-#if defined (CONFIG_BROKETS)
-/* We use <config.h> instead of "config.h" so that a compilation
- using -I. -I will use ./config.h rather than /config.h
- (which it would do because it found this file in ). */
-#include <config.h>
-#else
-#include "config.h"
-#endif
+# include <config.h>
#endif
#include <stdio.h>
#include <ctype.h>
#include <sys/types.h>
#include "backupfile.h"
-#if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
-#include <string.h>
-#ifndef index
-#define index strchr
-#endif
-#ifndef rindex
-#define rindex strrchr
-#endif
+#ifdef HAVE_STRING_H
+# include <string.h>
#else
-#include <strings.h>
+# include <strings.h>
#endif
-#if defined(DIRENT) || defined(_POSIX_VERSION)
-#include <dirent.h>
-#define NLENGTH(direct) (strlen((direct)->d_name))
-#else /* not (DIRENT or _POSIX_VERSION) */
-#define dirent direct
-#define NLENGTH(direct) ((direct)->d_namlen)
-#ifdef SYSNDIR
-#include <sys/ndir.h>
-#endif /* SYSNDIR */
-#ifdef SYSDIR
-#include <sys/dir.h>
-#endif /* SYSDIR */
-#ifdef NDIR
-#include <ndir.h>
-#endif /* NDIR */
-#endif /* DIRENT or _POSIX_VERSION */
-
-#ifdef VOID_CLOSEDIR
+#ifdef HAVE_DIRENT_H
+# include <dirent.h>
+# define NLENGTH(direct) (strlen((direct)->d_name))
+#else /* not HAVE_DIRENT_H */
+# define dirent direct
+# define NLENGTH(direct) ((direct)->d_namlen)
+# ifdef HAVE_SYS_NDIR_H
+# include <sys/ndir.h>
+# endif /* HAVE_SYS_NDIR_H */
+# ifdef HAVE_SYS_DIR_H
+# include <sys/dir.h>
+# endif /* HAVE_SYS_DIR_H */
+# ifdef HAVE_NDIR_H
+# include <ndir.h>
+# endif /* HAVE_NDIR_H */
+#endif /* HAVE_DIRENT_H */
+
+#ifdef CLOSEDIR_VOID
/* Fake a return value. */
-#define CLOSEDIR(d) (closedir (d), 0)
+# define CLOSEDIR(d) (closedir (d), 0)
#else
-#define CLOSEDIR(d) closedir (d)
+# define CLOSEDIR(d) closedir (d)
#endif
#ifdef STDC_HEADERS
-#include <stdlib.h>
+# include <stdlib.h>
#else
char *malloc ();
#endif
-#if !defined (isascii) || defined (STDC_HEADERS)
-#undef isascii
-#define isascii(c) 1
+#if defined (STDC_HEADERS) || (!defined (isascii) && !defined (HAVE_ISASCII))
+# define ISASCII(c) 1
+#else
+# define ISASCII(c) isascii(c)
#endif
-#define ISDIGIT(c) (isascii ((unsigned char ) c) \
+#define ISDIGIT(c) (ISASCII ((unsigned char) (c)) \
&& isdigit ((unsigned char) (c)))
#if defined (HAVE_UNISTD_H)
#if defined (_POSIX_VERSION)
/* POSIX does not require that the d_ino field be present, and some
systems do not provide it. */
-#define REAL_DIR_ENTRY(dp) 1
+# define REAL_DIR_ENTRY(dp) 1
#else
-#define REAL_DIR_ENTRY(dp) ((dp)->d_ino != 0)
+# define REAL_DIR_ENTRY(dp) ((dp)->d_ino != 0)
#endif
/* Which type of backup file names are generated. */
int highest_version;
int this_version;
int file_name_length;
-
+
dirp = opendir (dir);
if (!dirp)
return 0;
-
+
highest_version = 0;
file_name_length = strlen (file);
{
if (!REAL_DIR_ENTRY (dp) || NLENGTH (dp) <= file_name_length)
continue;
-
+
this_version = version_number (file, dp->d_name, file_name_length);
if (this_version > highest_version)
highest_version = this_version;
{
int version;
char *p;
-
+
version = 0;
if (!strncmp (base, backup, base_length) && ISDIGIT (backup[base_length]))
{