#include <errno.h>
#include <unistd.h>
-/* The d_nameln member of a struct dirent includes the '\0' character
- on some systems, but not on others. What's worse, you can't tell
- at compile-time which one it will be, since it really depends on
- the sort of system providing the filesystem you're reading from,
- not the system you are running on. Paul Eggert
- <eggert@bi.twinsun.com> says this occurs when Emacs is running on a
- SunOS 4.1.2 host, reading a directory that is remote-mounted from a
- Solaris 2.1 host and is in a native Solaris 2.1 filesystem.
-
- Since applying strlen to the name always works, we'll just do that. */
-#define NAMLEN(p) strlen (p->d_name)
-
-#ifdef HAVE_DIRENT_H
-
#include <dirent.h>
-#define DIRENTRY struct dirent
-
-#else /* not HAVE_DIRENT_H */
-
-#include <sys/dir.h>
-#include <sys/stat.h>
-
-#define DIRENTRY struct direct
-
-extern DIR *opendir (char *);
-extern struct direct *readdir (DIR *);
-
-#endif /* HAVE_DIRENT_H */
-
#include <filemode.h>
#include <stat-time.h>
-#ifdef MSDOS
-#define DIRENTRY_NONEMPTY(p) ((p)->d_name[0] != 0)
-#else
-#define DIRENTRY_NONEMPTY(p) ((p)->d_ino)
-#endif
-
#include "lisp.h"
#include "systime.h"
#include "character.h"
static ptrdiff_t scmp (const char *, const char *, ptrdiff_t);
\f
+/* Return the number of bytes in DP's name. */
+static ptrdiff_t
+dirent_namelen (struct dirent *dp)
+{
+#ifdef _D_EXACT_NAMLEN
+ return _D_EXACT_NAMLEN (dp);
+#else
+ return strlen (dp->d_name);
+#endif
+}
+
#ifdef WINDOWSNT
Lisp_Object
directory_files_internal_w32_unwind (Lisp_Object arg)
bool needsep = 0;
ptrdiff_t count = SPECPDL_INDEX ();
struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5;
- DIRENTRY *dp;
+ struct dirent *dp;
#ifdef WINDOWSNT
Lisp_Object w32_save = Qnil;
#endif
/* Loop reading blocks until EOF or error. */
for (;;)
{
+ ptrdiff_t len;
+ bool wanted = 0;
+ Lisp_Object name, finalname;
+ struct gcpro gcpro1, gcpro2;
+
errno = 0;
dp = readdir (d);
if (dp == NULL)
break;
- if (DIRENTRY_NONEMPTY (dp))
+ len = dirent_namelen (dp);
+ name = finalname = make_unibyte_string (dp->d_name, len);
+ GCPRO2 (finalname, name);
+
+ /* Note: DECODE_FILE can GC; it should protect its argument,
+ though. */
+ name = DECODE_FILE (name);
+ len = SBYTES (name);
+
+ /* Now that we have unwind_protect in place, we might as well
+ allow matching to be interrupted. */
+ immediate_quit = 1;
+ QUIT;
+
+ if (NILP (match)
+ || (0 <= re_search (bufp, SSDATA (name), len, 0, len, 0)))
+ wanted = 1;
+
+ immediate_quit = 0;
+
+ if (wanted)
{
- ptrdiff_t len;
- bool wanted = 0;
- Lisp_Object name, finalname;
- struct gcpro gcpro1, gcpro2;
+ if (!NILP (full))
+ {
+ Lisp_Object fullname;
+ ptrdiff_t nbytes = len + directory_nbytes + needsep;
+ ptrdiff_t nchars;
- len = NAMLEN (dp);
- name = finalname = make_unibyte_string (dp->d_name, len);
- GCPRO2 (finalname, name);
+ fullname = make_uninit_multibyte_string (nbytes, nbytes);
+ memcpy (SDATA (fullname), SDATA (directory),
+ directory_nbytes);
- /* Note: DECODE_FILE can GC; it should protect its argument,
- though. */
- name = DECODE_FILE (name);
- len = SBYTES (name);
+ if (needsep)
+ SSET (fullname, directory_nbytes, DIRECTORY_SEP);
- /* Now that we have unwind_protect in place, we might as well
- allow matching to be interrupted. */
- immediate_quit = 1;
- QUIT;
+ memcpy (SDATA (fullname) + directory_nbytes + needsep,
+ SDATA (name), len);
- if (NILP (match)
- || (0 <= re_search (bufp, SSDATA (name), len, 0, len, 0)))
- wanted = 1;
+ nchars = chars_in_text (SDATA (fullname), nbytes);
- immediate_quit = 0;
+ /* Some bug somewhere. */
+ if (nchars > nbytes)
+ emacs_abort ();
- if (wanted)
- {
- if (!NILP (full))
- {
- Lisp_Object fullname;
- ptrdiff_t nbytes = len + directory_nbytes + needsep;
- ptrdiff_t nchars;
-
- fullname = make_uninit_multibyte_string (nbytes, nbytes);
- memcpy (SDATA (fullname), SDATA (directory),
- directory_nbytes);
-
- if (needsep)
- SSET (fullname, directory_nbytes, DIRECTORY_SEP);
-
- memcpy (SDATA (fullname) + directory_nbytes + needsep,
- SDATA (name), len);
-
- nchars = chars_in_text (SDATA (fullname), nbytes);
-
- /* Some bug somewhere. */
- if (nchars > nbytes)
- emacs_abort ();
-
- STRING_SET_CHARS (fullname, nchars);
- if (nchars == nbytes)
- STRING_SET_UNIBYTE (fullname);
-
- finalname = fullname;
- }
- else
- finalname = name;
-
- if (attrs)
- {
- /* Construct an expanded filename for the directory entry.
- Use the decoded names for input to Ffile_attributes. */
- Lisp_Object decoded_fullname, fileattrs;
- struct gcpro gcpro1, gcpro2;
-
- decoded_fullname = fileattrs = Qnil;
- GCPRO2 (decoded_fullname, fileattrs);
-
- /* Both Fexpand_file_name and Ffile_attributes can GC. */
- decoded_fullname = Fexpand_file_name (name, directory);
- fileattrs = Ffile_attributes (decoded_fullname, id_format);
-
- list = Fcons (Fcons (finalname, fileattrs), list);
- UNGCPRO;
- }
- else
- list = Fcons (finalname, list);
+ STRING_SET_CHARS (fullname, nchars);
+ if (nchars == nbytes)
+ STRING_SET_UNIBYTE (fullname);
+
+ finalname = fullname;
}
+ else
+ finalname = name;
- UNGCPRO;
+ if (attrs)
+ {
+ /* Construct an expanded filename for the directory entry.
+ Use the decoded names for input to Ffile_attributes. */
+ Lisp_Object decoded_fullname, fileattrs;
+ struct gcpro gcpro1, gcpro2;
+
+ decoded_fullname = fileattrs = Qnil;
+ GCPRO2 (decoded_fullname, fileattrs);
+
+ /* Both Fexpand_file_name and Ffile_attributes can GC. */
+ decoded_fullname = Fexpand_file_name (name, directory);
+ fileattrs = Ffile_attributes (decoded_fullname, id_format);
+
+ list = Fcons (Fcons (finalname, fileattrs), list);
+ UNGCPRO;
+ }
+ else
+ list = Fcons (finalname, list);
}
+
+ UNGCPRO;
}
block_input ();
return file_name_completion (file, directory, 1, Qnil);
}
-static int file_name_completion_stat (Lisp_Object dirname, DIRENTRY *dp, struct stat *st_addr);
+static int file_name_completion_stat (Lisp_Object dirname, struct dirent *dp,
+ struct stat *st_addr);
static Lisp_Object Qdefault_directory;
static Lisp_Object
/* (att3b compiler bug requires do a null comparison this way) */
while (1)
{
- DIRENTRY *dp;
+ struct dirent *dp;
ptrdiff_t len;
bool canexclude = 0;
if (!dp) break;
- len = NAMLEN (dp);
+ len = dirent_namelen (dp);
QUIT;
- if (! DIRENTRY_NONEMPTY (dp)
- || len < SCHARS (encoded_file)
+ if (len < SCHARS (encoded_file)
|| 0 <= scmp (dp->d_name, SSDATA (encoded_file),
SCHARS (encoded_file)))
continue;
}
static int
-file_name_completion_stat (Lisp_Object dirname, DIRENTRY *dp, struct stat *st_addr)
+file_name_completion_stat (Lisp_Object dirname, struct dirent *dp,
+ struct stat *st_addr)
{
- ptrdiff_t len = NAMLEN (dp);
+ ptrdiff_t len = dirent_namelen (dp);
ptrdiff_t pos = SCHARS (dirname);
int value;
USE_SAFE_ALLOCA;
+++ /dev/null
-/*
- <dir.h> -- definitions for 4.2BSD-compatible directory access
-
- last edit: 09-Jul-1983 D A Gwyn
-
- * The code here is forced by the interface, and is not subject to
- * copyright, constituting the only possible expression of the
- * algorithm in this format.
- */
-
-#define DIRBLKSIZ 512 /* size of directory block */
-#ifdef WINDOWSNT
-#define MAXNAMLEN 255
-#else /* not WINDOWSNT */
-#define MAXNAMLEN 15 /* maximum filename length */
-#endif /* not WINDOWSNT */
- /* NOTE: MAXNAMLEN must be one less than a multiple of 4 */
-
-struct direct /* data from readdir() */
- {
- long d_ino; /* inode number of entry */
- unsigned short d_reclen; /* length of this record */
- unsigned short d_namlen; /* length of string in d_name */
- char d_name[MAXNAMLEN+1]; /* name of file */
- };
-
-typedef struct
- {
- int dd_fd; /* file descriptor */
- int dd_loc; /* offset in block */
- int dd_size; /* amount of valid data */
- char dd_buf[DIRBLKSIZ]; /* directory block */
- } DIR; /* stream data from opendir() */
-
-extern DIR *opendir (char *);
-extern struct direct *readdir (DIR *);
-extern void seekdir (DIR *, long);
-extern void closedir (DIR *);
-
-#define rewinddir( dirp ) seekdir( dirp, 0L )
-
projects / emacs.git / commitdiff