/* File IO for GNU Emacs.
-Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, 1996, 1997,
- 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
- 2009, 2010 Free Software Foundation, Inc.
+Copyright (C) 1985-1988, 1993-2011 Free Software Foundation, Inc.
This file is part of GNU Emacs.
#include <sys/types.h>
#include <sys/stat.h>
#include <setjmp.h>
-
-#ifdef HAVE_UNISTD_H
#include <unistd.h>
-#endif
-
-#if !defined (S_ISLNK) && defined (S_IFLNK)
-# define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
-#endif
-
-#if !defined (S_ISFIFO) && defined (S_IFIFO)
-# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
-#endif
-
-#if !defined (S_ISREG) && defined (S_IFREG)
-# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
-#endif
#ifdef HAVE_PWD_H
#include <pwd.h>
#define IS_DRIVE(x) ((x) >= 'A' && (x) <= 'z')
#endif
#ifdef WINDOWSNT
-#define IS_DRIVE(x) isalpha (x)
+#define IS_DRIVE(x) isalpha ((unsigned char) (x))
#endif
/* Need to lower-case the drive letter, or else expanded
filenames will sometimes compare inequal, because
`expand-file-name' doesn't always down-case the drive letter. */
-#define DRIVE_LETTER(x) (tolower (x))
+#define DRIVE_LETTER(x) (tolower ((unsigned char) (x)))
#endif
#include "systime.h"
#include "commands.h"
-#ifndef S_ISLNK
-# define lstat stat
-#endif
-
#ifndef FILE_SYSTEM_CASE
#define FILE_SYSTEM_CASE(filename) (filename)
#endif
/* Nonzero during writing of auto-save files */
-int auto_saving;
+static int auto_saving;
/* Set by auto_save_1 to mode of original file so Fwrite_region will create
a new file with the same mode as the original */
-int auto_save_mode_bits;
+static int auto_save_mode_bits;
/* Set by auto_save_1 if an error occurred during the last auto-save. */
-int auto_save_error_occurred;
+static int auto_save_error_occurred;
/* The symbol bound to coding-system-for-read when
insert-file-contents is called for recovering a file. This is not
an actual coding system name, but just an indicator to tell
insert-file-contents to use `emacs-mule' with a special flag for
auto saving and recovering a file. */
-Lisp_Object Qauto_save_coding;
-
-/* Coding system for file names, or nil if none. */
-Lisp_Object Vfile_name_coding_system;
-
-/* Coding system for file names used only when
- Vfile_name_coding_system is nil. */
-Lisp_Object Vdefault_file_name_coding_system;
-
-/* Alist of elements (REGEXP . HANDLER) for file names
- whose I/O is done with a special handler. */
-Lisp_Object Vfile_name_handler_alist;
+static Lisp_Object Qauto_save_coding;
/* Property name of a file name handler,
which gives a list of operations it handles.. */
-Lisp_Object Qoperations;
+static Lisp_Object Qoperations;
/* Lisp functions for translating file formats */
-Lisp_Object Qformat_decode, Qformat_annotate_function;
-
-/* Function to be called to decide a coding system of a reading file. */
-Lisp_Object Vset_auto_coding_function;
-
-/* Functions to be called to process text properties in inserted file. */
-Lisp_Object Vafter_insert_file_functions;
+static Lisp_Object Qformat_decode, Qformat_annotate_function;
/* Lisp function for setting buffer-file-coding-system and the
multibyteness of the current buffer after inserting a file. */
-Lisp_Object Qafter_insert_file_set_coding;
-
-/* Functions to be called to create text property annotations for file. */
-Lisp_Object Vwrite_region_annotate_functions;
-Lisp_Object Qwrite_region_annotate_functions;
-Lisp_Object Vwrite_region_post_annotation_function;
-
-/* During build_annotations, each time an annotation function is called,
- this holds the annotations made by the previous functions. */
-Lisp_Object Vwrite_region_annotations_so_far;
+static Lisp_Object Qafter_insert_file_set_coding;
+static Lisp_Object Qwrite_region_annotate_functions;
/* Each time an annotation function changes the buffer, the new buffer
is added here. */
-Lisp_Object Vwrite_region_annotation_buffers;
-
-/* File name in which we write a list of all our auto save files. */
-Lisp_Object Vauto_save_list_file_name;
-
-/* Whether or not files are auto-saved into themselves. */
-Lisp_Object Vauto_save_visited_file_name;
-
-/* Whether or not to continue auto-saving after a large deletion. */
-Lisp_Object Vauto_save_include_big_deletions;
+static Lisp_Object Vwrite_region_annotation_buffers;
#ifdef HAVE_FSYNC
-/* Nonzero means skip the call to fsync in Fwrite-region. */
-int write_region_inhibit_fsync;
#endif
-/* Non-zero means call move-file-to-trash in Fdelete_file or
- Fdelete_directory_internal. */
-int delete_by_moving_to_trash;
-
-Lisp_Object Qdelete_by_moving_to_trash;
+static Lisp_Object Qdelete_by_moving_to_trash;
/* Lisp function for moving files to trash. */
-Lisp_Object Qmove_file_to_trash;
+static Lisp_Object Qmove_file_to_trash;
/* Lisp function for recursively copying directories. */
-Lisp_Object Qcopy_directory;
+static Lisp_Object Qcopy_directory;
/* Lisp function for recursively deleting directories. */
-Lisp_Object Qdelete_directory;
+static Lisp_Object Qdelete_directory;
#ifdef WINDOWSNT
-extern Lisp_Object Vw32_get_true_file_attributes;
#endif
-/* These variables describe handlers that have "already" had a chance
- to handle the current operation.
-
- Vinhibit_file_name_handlers is a list of file name handlers.
- Vinhibit_file_name_operation is the operation being handled.
- If we try to handle that operation, we ignore those handlers. */
-
-static Lisp_Object Vinhibit_file_name_handlers;
-static Lisp_Object Vinhibit_file_name_operation;
-
-Lisp_Object Qfile_error, Qfile_already_exists, Qfile_date_error;
-Lisp_Object Qexcl;
+Lisp_Object Qfile_error;
+static Lisp_Object Qfile_already_exists, Qfile_date_error;
+static Lisp_Object Qexcl;
Lisp_Object Qfile_name_history;
-Lisp_Object Qcar_less_than_car;
+static Lisp_Object Qcar_less_than_car;
-static int a_write (int, Lisp_Object, int, int,
+static Lisp_Object Fmake_symbolic_link (Lisp_Object, Lisp_Object, Lisp_Object);
+static int a_write (int, Lisp_Object, ptrdiff_t, ptrdiff_t,
Lisp_Object *, struct coding_system *);
-static int e_write (int, Lisp_Object, int, int, struct coding_system *);
+static int e_write (int, Lisp_Object, ptrdiff_t, ptrdiff_t,
+ struct coding_system *);
\f
void
{
int c;
- str = (char *) SDATA (errstring);
- c = STRING_CHAR (str);
- Faset (errstring, make_number (0), make_number (DOWNCASE (c)));
+ str = SSDATA (errstring);
+ c = STRING_CHAR ((unsigned char *) str);
+ Faset (errstring, make_number (0), make_number (downcase (c)));
}
xsignal (Qfile_error,
}
\f
-Lisp_Object Qexpand_file_name;
-Lisp_Object Qsubstitute_in_file_name;
-Lisp_Object Qdirectory_file_name;
-Lisp_Object Qfile_name_directory;
-Lisp_Object Qfile_name_nondirectory;
-Lisp_Object Qunhandled_file_name_directory;
-Lisp_Object Qfile_name_as_directory;
-Lisp_Object Qcopy_file;
-Lisp_Object Qmake_directory_internal;
-Lisp_Object Qmake_directory;
-Lisp_Object Qdelete_directory_internal;
+static Lisp_Object Qexpand_file_name;
+static Lisp_Object Qsubstitute_in_file_name;
+static Lisp_Object Qdirectory_file_name;
+static Lisp_Object Qfile_name_directory;
+static Lisp_Object Qfile_name_nondirectory;
+static Lisp_Object Qunhandled_file_name_directory;
+static Lisp_Object Qfile_name_as_directory;
+static Lisp_Object Qcopy_file;
+static Lisp_Object Qmake_directory_internal;
+static Lisp_Object Qmake_directory;
+static Lisp_Object Qdelete_directory_internal;
Lisp_Object Qdelete_file;
-Lisp_Object Qrename_file;
-Lisp_Object Qadd_name_to_file;
-Lisp_Object Qmake_symbolic_link;
+static Lisp_Object Qrename_file;
+static Lisp_Object Qadd_name_to_file;
+static Lisp_Object Qmake_symbolic_link;
Lisp_Object Qfile_exists_p;
-Lisp_Object Qfile_executable_p;
-Lisp_Object Qfile_readable_p;
-Lisp_Object Qfile_writable_p;
-Lisp_Object Qfile_symlink_p;
-Lisp_Object Qaccess_file;
+static Lisp_Object Qfile_executable_p;
+static Lisp_Object Qfile_readable_p;
+static Lisp_Object Qfile_writable_p;
+static Lisp_Object Qfile_symlink_p;
+static Lisp_Object Qaccess_file;
Lisp_Object Qfile_directory_p;
-Lisp_Object Qfile_regular_p;
-Lisp_Object Qfile_accessible_directory_p;
-Lisp_Object Qfile_modes;
-Lisp_Object Qset_file_modes;
-Lisp_Object Qset_file_times;
-Lisp_Object Qfile_selinux_context;
-Lisp_Object Qset_file_selinux_context;
-Lisp_Object Qfile_newer_than_file_p;
+static Lisp_Object Qfile_regular_p;
+static Lisp_Object Qfile_accessible_directory_p;
+static Lisp_Object Qfile_modes;
+static Lisp_Object Qset_file_modes;
+static Lisp_Object Qset_file_times;
+static Lisp_Object Qfile_selinux_context;
+static Lisp_Object Qset_file_selinux_context;
+static Lisp_Object Qfile_newer_than_file_p;
Lisp_Object Qinsert_file_contents;
Lisp_Object Qwrite_region;
-Lisp_Object Qverify_visited_file_modtime;
-Lisp_Object Qset_visited_file_modtime;
+static Lisp_Object Qverify_visited_file_modtime;
+static Lisp_Object Qset_visited_file_modtime;
-DEFUN ("find-file-name-handler", Ffind_file_name_handler, Sfind_file_name_handler, 2, 2, 0,
+DEFUN ("find-file-name-handler", Ffind_file_name_handler,
+ Sfind_file_name_handler, 2, 2, 0,
doc: /* Return FILENAME's handler function for OPERATION, if it has one.
Otherwise, return nil.
A file name is handled if one of the regular expressions in
{
/* This function must not munge the match data. */
Lisp_Object chain, inhibited_handlers, result;
- int pos = -1;
+ ptrdiff_t pos = -1;
result = Qnil;
CHECK_STRING (filename);
if (CONSP (elt))
{
Lisp_Object string = XCAR (elt);
- int match_pos;
+ ptrdiff_t match_pos;
Lisp_Object handler = XCDR (elt);
Lisp_Object operations = Qnil;
(Lisp_Object filename)
{
#ifndef DOS_NT
- register const unsigned char *beg;
+ register const char *beg;
#else
- register unsigned char *beg;
+ register char *beg;
#endif
- register const unsigned char *p;
+ register const char *p;
Lisp_Object handler;
CHECK_STRING (filename);
filename = FILE_SYSTEM_CASE (filename);
#ifdef DOS_NT
- beg = (unsigned char *) alloca (SBYTES (filename) + 1);
- memcpy (beg, SDATA (filename), SBYTES (filename) + 1);
+ beg = (char *) alloca (SBYTES (filename) + 1);
+ memcpy (beg, SSDATA (filename), SBYTES (filename) + 1);
#else
- beg = SDATA (filename);
+ beg = SSDATA (filename);
#endif
p = beg + SBYTES (filename);
if (p[-1] == ':')
{
/* MAXPATHLEN+1 is guaranteed to be enough space for getdefdir. */
- unsigned char *res = alloca (MAXPATHLEN + 1);
- unsigned char *r = res;
+ char *res = alloca (MAXPATHLEN + 1);
+ char *r = res;
if (p == beg + 4 && IS_DIRECTORY_SEP (*beg) && beg[1] == ':')
{
r += 2;
}
- if (getdefdir (toupper (*beg) - 'A' + 1, r))
+ if (getdefdir (toupper ((unsigned char) *beg) - 'A' + 1, r))
{
if (!IS_DIRECTORY_SEP (res[strlen (res) - 1]))
strcat (res, "/");
or the entire name if it contains no slash. */)
(Lisp_Object filename)
{
- register const unsigned char *beg, *p, *end;
+ register const char *beg, *p, *end;
Lisp_Object handler;
CHECK_STRING (filename);
if (!NILP (handler))
return call2 (handler, Qfile_name_nondirectory, filename);
- beg = SDATA (filename);
+ beg = SSDATA (filename);
end = p = beg + SBYTES (filename);
while (p != beg && !IS_DIRECTORY_SEP (p[-1])
}
\f
-char *
-file_name_as_directory (char *out, char *in)
+static char *
+file_name_as_directory (char *out, const char *in)
{
- int size = strlen (in) - 1;
+ ptrdiff_t len = strlen (in);
- strcpy (out, in);
-
- if (size < 0)
+ if (len == 0)
{
out[0] = '.';
out[1] = '/';
return out;
}
+ strcpy (out, in);
+
/* For Unix syntax, Append a slash if necessary */
- if (!IS_DIRECTORY_SEP (out[size]))
+ if (!IS_DIRECTORY_SEP (out[len - 1]))
{
- out[size + 1] = DIRECTORY_SEP;
- out[size + 2] = '\0';
+ out[len] = DIRECTORY_SEP;
+ out[len + 1] = '\0';
}
#ifdef DOS_NT
dostounix_filename (out);
return call2 (handler, Qfile_name_as_directory, file);
buf = (char *) alloca (SBYTES (file) + 10);
- file_name_as_directory (buf, SDATA (file));
+ file_name_as_directory (buf, SSDATA (file));
return make_specified_string (buf, -1, strlen (buf),
STRING_MULTIBYTE (file));
}
* Value is nonzero if the string output is different from the input.
*/
-int
+static int
directory_file_name (char *src, char *dst)
{
- long slen;
+ ptrdiff_t slen;
slen = strlen (src);
return call2 (handler, Qdirectory_file_name, directory);
buf = (char *) alloca (SBYTES (directory) + 20);
- directory_file_name (SDATA (directory), buf);
+ directory_file_name (SSDATA (directory), buf);
return make_specified_string (buf, -1, strlen (buf),
STRING_MULTIBYTE (directory));
}
{
Lisp_Object val;
int len, clen;
- int pid;
- unsigned char *p, *data;
- char pidbuf[20];
+ printmax_t pid;
+ char *p, *data;
+ char pidbuf[INT_BUFSIZE_BOUND (printmax_t)];
int pidlen;
CHECK_STRING (prefix);
three are incremented if the file already exists. This ensures
262144 unique file names per PID per PREFIX. */
- pid = (int) getpid ();
+ pid = getpid ();
if (base64_p)
{
else
{
#ifdef HAVE_LONG_FILE_NAMES
- sprintf (pidbuf, "%d", pid);
- pidlen = strlen (pidbuf);
+ pidlen = sprintf (pidbuf, "%"pMd, pid);
#else
pidbuf[0] = make_temp_name_tbl[pid & 63], pid >>= 6;
pidbuf[1] = make_temp_name_tbl[pid & 63], pid >>= 6;
val = make_uninit_multibyte_string (clen + 3 + pidlen, len + 3 + pidlen);
if (!STRING_MULTIBYTE (prefix))
STRING_SET_UNIBYTE (val);
- data = SDATA (val);
- memcpy (data, SDATA (prefix), len);
+ data = SSDATA (val);
+ memcpy (data, SSDATA (prefix), len);
p = data + len;
memcpy (p, pidbuf, pidlen);
if (!make_temp_name_count_initialized_p)
{
- make_temp_name_count = (unsigned) time (NULL);
+ make_temp_name_count = time (NULL);
make_temp_name_count_initialized_p = 1;
}
as bad as (and in many cases worse than) throwing the
error, or to ignore the error, which will likely result
in looping through 225307 stat's, which is not only
- dog-slow, but also useless since it will fallback to
- the errow below, anyway. */
+ dog-slow, but also useless since eventually nil would
+ have to be returned anyway. */
report_file_error ("Cannot create temporary name for prefix",
Fcons (prefix, Qnil));
/* not reached */
}
}
-
- error ("Cannot create temporary name for prefix `%s'",
- SDATA (prefix));
- return Qnil;
}
Second arg DEFAULT-DIRECTORY is directory to start with if NAME is relative
\(does not start with slash or tilde); if DEFAULT-DIRECTORY is nil or missing,
the current buffer's value of `default-directory' is used.
+NAME should be a string that is a valid file name for the underlying
+filesystem.
File name components that are `.' are removed, and
so are file name components followed by `..', along with the `..' itself;
note that these simplifications are done without checking the resulting
file names in the file system.
+Multiple consecutive slashes are collapsed into a single slash,
+except at the beginning of the file name when they are significant (e.g.,
+UNC file names on MS-Windows.)
An initial `~/' expands to your home directory.
An initial `~USER/' expands to USER's home directory.
See also the function `substitute-in-file-name'.
For technical reasons, this function can return correct but
non-intuitive results for the root directory; for instance,
\(expand-file-name ".." "/") returns "/..". For this reason, use
-(directory-file-name (file-name-directory dirname)) to traverse a
+\(directory-file-name (file-name-directory dirname)) to traverse a
filesystem tree, not (expand-file-name ".." dirname). */)
(Lisp_Object name, Lisp_Object default_directory)
{
/* These point to SDATA and need to be careful with string-relocation
during GC (via DECODE_FILE). */
- unsigned char *nm, *newdir;
+ char *nm;
+ const char *newdir;
/* This should only point to alloca'd data. */
- unsigned char *target;
+ char *target;
- int tlen;
+ ptrdiff_t tlen;
struct passwd *pw;
#ifdef DOS_NT
int drive = 0;
int collapse_newdir = 1;
int is_escaped = 0;
#endif /* DOS_NT */
- int length;
+ ptrdiff_t length;
Lisp_Object handler, result;
int multibyte;
Lisp_Object hdir;
/* Use the buffer's default-directory if DEFAULT_DIRECTORY is omitted. */
if (NILP (default_directory))
- default_directory = current_buffer->directory;
+ default_directory = BVAR (current_buffer, directory);
if (! STRINGP (default_directory))
{
#ifdef DOS_NT
}
{
- unsigned char *o = SDATA (default_directory);
+ char *o = SSDATA (default_directory);
/* Make sure DEFAULT_DIRECTORY is properly expanded.
It would be better to do this down below where we actually use
}
/* Make a local copy of nm[] to protect it from GC in DECODE_FILE below. */
- nm = (unsigned char *) alloca (SBYTES (name) + 1);
- memcpy (nm, SDATA (name), SBYTES (name) + 1);
+ nm = (char *) alloca (SBYTES (name) + 1);
+ memcpy (nm, SSDATA (name), SBYTES (name) + 1);
#ifdef DOS_NT
/* Note if special escape prefix is present, but remove for now. */
drive specifier at the beginning. */
if (IS_DRIVE (nm[0]) && IS_DEVICE_SEP (nm[1]))
{
- drive = nm[0];
+ drive = (unsigned char) nm[0];
nm += 2;
}
non-zero value, that means we've discovered that we can't do
that cool trick. */
int lose = 0;
- unsigned char *p = nm;
+ char *p = nm;
while (*p)
{
#ifdef WINDOWSNT
if (IS_DIRECTORY_SEP (nm[1]))
{
- if (strcmp (nm, SDATA (name)) != 0)
+ if (strcmp (nm, SSDATA (name)) != 0)
name = make_specified_string (nm, -1, strlen (nm), multibyte);
}
else
#endif
/* drive must be set, so this is okay */
- if (strcmp (nm - 2, SDATA (name)) != 0)
+ if (strcmp (nm - 2, SSDATA (name)) != 0)
{
char temp[] = " :";
}
return name;
#else /* not DOS_NT */
- if (strcmp (nm, SDATA (name)) == 0)
+ if (strcmp (nm, SSDATA (name)) == 0)
return name;
return make_specified_string (nm, -1, strlen (nm), multibyte);
#endif /* not DOS_NT */
{
Lisp_Object tem;
- if (!(newdir = (unsigned char *) egetenv ("HOME")))
- newdir = (unsigned char *) "";
+ if (!(newdir = egetenv ("HOME")))
+ newdir = "";
nm++;
/* egetenv may return a unibyte string, which will bite us since
we expect the directory to be multibyte. */
if (!STRING_MULTIBYTE (tem))
{
hdir = DECODE_FILE (tem);
- newdir = SDATA (hdir);
+ newdir = SSDATA (hdir);
}
#ifdef DOS_NT
collapse_newdir = 0;
}
else /* ~user/filename */
{
- unsigned char *o, *p;
+ char *o, *p;
for (p = nm; *p && (!IS_DIRECTORY_SEP (*p)); p++);
o = alloca (p - nm + 1);
memcpy (o, nm, p - nm);
UNBLOCK_INPUT;
if (pw)
{
- newdir = (unsigned char *) pw -> pw_dir;
+ newdir = pw->pw_dir;
nm = p;
#ifdef DOS_NT
collapse_newdir = 0;
if (!newdir && drive)
{
/* Get default directory if needed to make nm absolute. */
+ char *adir = NULL;
if (!IS_DIRECTORY_SEP (nm[0]))
{
- newdir = alloca (MAXPATHLEN + 1);
- if (!getdefdir (toupper (drive) - 'A' + 1, newdir))
- newdir = NULL;
+ adir = alloca (MAXPATHLEN + 1);
+ if (!getdefdir (toupper (drive) - 'A' + 1, adir))
+ adir = NULL;
}
- if (!newdir)
+ if (!adir)
{
/* Either nm starts with /, or drive isn't mounted. */
- newdir = alloca (4);
- newdir[0] = DRIVE_LETTER (drive);
- newdir[1] = ':';
- newdir[2] = '/';
- newdir[3] = 0;
+ adir = alloca (4);
+ adir[0] = DRIVE_LETTER (drive);
+ adir[1] = ':';
+ adir[2] = '/';
+ adir[3] = 0;
}
+ newdir = adir;
}
#endif /* DOS_NT */
#endif
&& !newdir)
{
- newdir = SDATA (default_directory);
+ newdir = SSDATA (default_directory);
#ifdef DOS_NT
/* Note if special escape prefix is present, but remove for now. */
if (newdir[0] == '/' && newdir[1] == ':')
when we have pointers into lisp strings, we accomplish this
indirectly by prepending newdir to nm if necessary, and using
cwd (or the wd of newdir's drive) as the new newdir. */
-
+ char *adir;
if (IS_DRIVE (newdir[0]) && IS_DEVICE_SEP (newdir[1]))
{
- drive = newdir[0];
+ drive = (unsigned char) newdir[0];
newdir += 2;
}
if (!IS_DIRECTORY_SEP (nm[0]))
strcat (tmp, nm);
nm = tmp;
}
- newdir = alloca (MAXPATHLEN + 1);
+ adir = alloca (MAXPATHLEN + 1);
if (drive)
{
- if (!getdefdir (toupper (drive) - 'A' + 1, newdir))
+ if (!getdefdir (toupper (drive) - 'A' + 1, adir))
newdir = "/";
}
else
- getwd (newdir);
+ getwd (adir);
+ newdir = adir;
}
/* Strip off drive name from prefix, if present. */
#ifdef WINDOWSNT
if (IS_DIRECTORY_SEP (newdir[0]) && IS_DIRECTORY_SEP (newdir[1]))
{
- unsigned char *p;
- newdir = strcpy (alloca (strlen (newdir) + 1), newdir);
- p = newdir + 2;
+ char *adir = strcpy (alloca (strlen (newdir) + 1), newdir);
+ char *p = adir + 2;
while (*p && !IS_DIRECTORY_SEP (*p)) p++;
p++;
while (*p && !IS_DIRECTORY_SEP (*p)) p++;
*p = 0;
+ newdir = adir;
}
else
#endif
#endif
)
{
- unsigned char *temp = (unsigned char *) alloca (length);
+ char *temp = (char *) alloca (length);
memcpy (temp, newdir, length - 1);
temp[length - 1] = 0;
newdir = temp;
/* Reserve space for drive specifier and escape prefix, since either
or both may need to be inserted. (The Microsoft x86 compiler
produces incorrect code if the following two lines are combined.) */
- target = (unsigned char *) alloca (tlen + 4);
+ target = (char *) alloca (tlen + 4);
target += 4;
#else /* not DOS_NT */
- target = (unsigned char *) alloca (tlen);
+ target = (char *) alloca (tlen);
#endif /* not DOS_NT */
*target = 0;
/* Now canonicalize by removing `//', `/.' and `/foo/..' if they
appear. */
{
- unsigned char *p = target;
- unsigned char *o = target;
+ char *p = target;
+ char *o = target;
while (*p)
{
&& (IS_DIRECTORY_SEP (p[3]) || p[3] == 0))
{
#ifdef WINDOWSNT
- unsigned char *prev_o = o;
+ char *prev_o = o;
#endif
while (o != target && (--o) && !IS_DIRECTORY_SEP (*o))
;
unsigned char *nm;
register unsigned char *newdir, *p, *o;
- int tlen;
+ ptrdiff_t tlen;
unsigned char *target;
struct passwd *pw;
int lose;
unsigned char *user = nm + 1;
/* Find end of name. */
unsigned char *ptr = (unsigned char *) strchr (user, '/');
- int len = ptr ? ptr - user : strlen (user);
+ ptrdiff_t len = ptr ? ptr - user : strlen (user);
/* Copy the user name into temp storage. */
o = (unsigned char *) alloca (len + 1);
memcpy (o, user, len);
\f
/* If /~ or // appears, discard everything through first slash. */
static int
-file_name_absolute_p (const unsigned char *filename)
+file_name_absolute_p (const char *filename)
{
return
(IS_DIRECTORY_SEP (*filename) || *filename == '~'
);
}
-static unsigned char *
-search_embedded_absfilename (unsigned char *nm, unsigned char *endp)
+static char *
+search_embedded_absfilename (char *nm, char *endp)
{
- unsigned char *p, *s;
+ char *p, *s;
for (p = nm + 1; p < endp; p++)
{
if ((0
|| IS_DIRECTORY_SEP (p[-1]))
&& file_name_absolute_p (p)
-#if defined (WINDOWSNT) || defined(CYGWIN)
+#if defined (WINDOWSNT) || defined (CYGWIN)
/* // at start of file name is meaningful in Apollo,
WindowsNT and Cygwin systems. */
&& !(IS_DIRECTORY_SEP (p[0]) && p - 1 == nm)
for (s = p; *s && (!IS_DIRECTORY_SEP (*s)); s++);
if (p[0] == '~' && s > p + 1) /* we've got "/~something/" */
{
- unsigned char *o = alloca (s - p + 1);
+ char *o = alloca (s - p + 1);
struct passwd *pw;
memcpy (o, p, s - p);
o [s - p] = 0;
those `/' is discarded. */)
(Lisp_Object filename)
{
- unsigned char *nm;
+ char *nm;
- register unsigned char *s, *p, *o, *x, *endp;
- unsigned char *target = NULL;
+ register char *s, *p, *o, *x, *endp;
+ char *target = NULL;
int total = 0;
int substituted = 0;
int multibyte;
- unsigned char *xnm;
+ char *xnm;
Lisp_Object handler;
CHECK_STRING (filename);
/* Always work on a copy of the string, in case GC happens during
decode of environment variables, causing the original Lisp_String
data to be relocated. */
- nm = (unsigned char *) alloca (SBYTES (filename) + 1);
+ nm = (char *) alloca (SBYTES (filename) + 1);
memcpy (nm, SDATA (filename), SBYTES (filename) + 1);
#ifdef DOS_NT
}
/* Copy out the variable name */
- target = (unsigned char *) alloca (s - o + 1);
+ target = (char *) alloca (s - o + 1);
strncpy (target, o, s - o);
target[s - o] = 0;
#ifdef DOS_NT
#endif /* DOS_NT */
/* Get variable value */
- o = (unsigned char *) egetenv (target);
+ o = egetenv (target);
if (o)
{
/* Don't try to guess a maximum length - UTF8 can use up to
/* If substitution required, recopy the string and do it */
/* Make space in stack frame for the new copy */
- xnm = (unsigned char *) alloca (SBYTES (filename) + total + 1);
+ xnm = (char *) alloca (SBYTES (filename) + total + 1);
x = xnm;
/* Copy the rest of the name through, replacing $ constructs with values */
}
/* Copy out the variable name */
- target = (unsigned char *) alloca (s - o + 1);
+ target = (char *) alloca (s - o + 1);
strncpy (target, o, s - o);
target[s - o] = 0;
#ifdef DOS_NT
#endif /* DOS_NT */
/* Get variable value */
- o = (unsigned char *) egetenv (target);
+ o = egetenv (target);
if (!o)
{
*x++ = '$';
else
{
Lisp_Object orig, decoded;
- int orig_length, decoded_length;
+ ptrdiff_t orig_length, decoded_length;
orig_length = strlen (o);
orig = make_unibyte_string (o, orig_length);
decoded = DECODE_FILE (orig);
decoded_length = SBYTES (decoded);
- strncpy (x, SDATA (decoded), decoded_length);
+ strncpy (x, SSDATA (decoded), decoded_length);
x += decoded_length;
/* If environment variable needed decoding, return value
needs to be multibyte. */
if (decoded_length != orig_length
- || strncmp (SDATA (decoded), o, orig_length))
+ || strncmp (SSDATA (decoded), o, orig_length))
multibyte = 1;
}
}
If QUICK is nonzero, we ask for y or n, not yes or no. */
-void
-barf_or_query_if_file_exists (Lisp_Object absname, const unsigned char *querystring, int interactive, struct stat *statptr, int quick)
+static void
+barf_or_query_if_file_exists (Lisp_Object absname, const char *querystring,
+ int interactive, struct stat *statptr, int quick)
{
register Lisp_Object tem, encoded_filename;
struct stat statbuf;
/* stat is a good way to tell whether the file exists,
regardless of what access permissions it has. */
- if (lstat (SDATA (encoded_filename), &statbuf) >= 0)
+ if (lstat (SSDATA (encoded_filename), &statbuf) >= 0)
{
+ if (S_ISDIR (statbuf.st_mode))
+ xsignal2 (Qfile_error,
+ build_string ("File is a directory"), absname);
+
if (! interactive)
xsignal2 (Qfile_already_exists,
build_string ("File already exists"), absname);
on the system, we copy the SELinux context of FILE to NEWNAME. */)
(Lisp_Object file, Lisp_Object newname, Lisp_Object ok_if_already_exists, Lisp_Object keep_time, Lisp_Object preserve_uid_gid, Lisp_Object preserve_selinux_context)
{
- int ifd, ofd, n;
+ int ifd, ofd;
+ int n;
char buf[16 * 1024];
struct stat st, out_st;
Lisp_Object handler;
struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
- int count = SPECPDL_INDEX ();
+ ptrdiff_t count = SPECPDL_INDEX ();
int input_file_statable_p;
Lisp_Object encoded_file, encoded_newname;
#if HAVE_LIBSELINUX
|| INTEGERP (ok_if_already_exists))
barf_or_query_if_file_exists (newname, "copy to it",
INTEGERP (ok_if_already_exists), &out_st, 0);
- else if (stat (SDATA (encoded_newname), &out_st) < 0)
+ else if (stat (SSDATA (encoded_newname), &out_st) < 0)
out_st.st_mode = 0;
#ifdef WINDOWSNT
}
#else /* not WINDOWSNT */
immediate_quit = 1;
- ifd = emacs_open (SDATA (encoded_file), O_RDONLY, 0);
+ ifd = emacs_open (SSDATA (encoded_file), O_RDONLY, 0);
immediate_quit = 0;
if (ifd < 0)
Fcons (file, Fcons (newname, Qnil)));
}
-#if defined (S_ISREG) && defined (S_ISLNK)
if (input_file_statable_p)
{
if (!(S_ISREG (st.st_mode)) && !(S_ISLNK (st.st_mode)))
report_file_error ("Non-regular file", Fcons (file, Qnil));
}
}
-#endif /* S_ISREG && S_ISLNK */
#ifdef MSDOS
/* System's default file type was set to binary by _fmode in emacs.c. */
| (NILP (ok_if_already_exists) ? O_EXCL : 0),
S_IREAD | S_IWRITE);
#else /* not MSDOS */
- ofd = emacs_open (SDATA (encoded_newname),
- O_WRONLY | O_TRUNC | O_CREAT
- | (NILP (ok_if_already_exists) ? O_EXCL : 0),
- 0666);
+ {
+ int new_mask = 0666;
+ if (input_file_statable_p)
+ {
+ if (!NILP (preserve_uid_gid))
+ new_mask = 0600;
+ new_mask &= st.st_mode;
+ }
+ ofd = emacs_open (SSDATA (encoded_newname),
+ (O_WRONLY | O_TRUNC | O_CREAT
+ | (NILP (ok_if_already_exists) ? O_EXCL : 0)),
+ new_mask);
+ }
#endif /* not MSDOS */
if (ofd < 0)
report_file_error ("Opening output file", Fcons (newname, Qnil));
owner and group. */
if (input_file_statable_p)
{
- if (! NILP (preserve_uid_gid))
- fchown (ofd, st.st_uid, st.st_gid);
- fchmod (ofd, st.st_mode & 07777);
+ int mode_mask = 07777;
+ if (!NILP (preserve_uid_gid))
+ {
+ /* Attempt to change owner and group. If that doesn't work
+ attempt to change just the group, as that is sometimes allowed.
+ Adjust the mode mask to eliminate setuid or setgid bits
+ that are inappropriate if the owner and group are wrong. */
+ if (fchown (ofd, st.st_uid, st.st_gid) != 0)
+ {
+ mode_mask &= ~06000;
+ if (fchown (ofd, -1, st.st_gid) == 0)
+ mode_mask |= 02000;
+ }
+ }
+ if (fchmod (ofd, st.st_mode & mode_mask) != 0)
+ report_file_error ("Doing chmod", Fcons (newname, Qnil));
}
#endif /* not MSDOS */
EMACS_TIME atime, mtime;
EMACS_SET_SECS_USECS (atime, st.st_atime, 0);
EMACS_SET_SECS_USECS (mtime, st.st_mtime, 0);
- if (set_file_times (SDATA (encoded_newname),
+ if (set_file_times (SSDATA (encoded_newname),
atime, mtime))
xsignal2 (Qfile_date_error,
build_string ("Cannot set file date"), newname);
doc: /* Create a new directory named DIRECTORY. */)
(Lisp_Object directory)
{
- const unsigned char *dir;
+ const char *dir;
Lisp_Object handler;
Lisp_Object encoded_dir;
encoded_dir = ENCODE_FILE (directory);
- dir = SDATA (encoded_dir);
+ dir = SSDATA (encoded_dir);
#ifdef WINDOWSNT
if (mkdir (dir) != 0)
doc: /* Delete the directory named DIRECTORY. Does not follow symlinks. */)
(Lisp_Object directory)
{
- const unsigned char *dir;
- Lisp_Object handler;
+ const char *dir;
Lisp_Object encoded_dir;
CHECK_STRING (directory);
directory = Fdirectory_file_name (Fexpand_file_name (directory, Qnil));
encoded_dir = ENCODE_FILE (directory);
- dir = SDATA (encoded_dir);
+ dir = SSDATA (encoded_dir);
if (rmdir (dir) != 0)
report_file_error ("Removing directory", list1 (directory));
encoded_file = ENCODE_FILE (filename);
- if (0 > unlink (SDATA (encoded_file)))
+ if (0 > unlink (SSDATA (encoded_file)))
report_file_error ("Removing old name", list1 (filename));
return Qnil;
}
|| INTEGERP (ok_if_already_exists))
barf_or_query_if_file_exists (newname, "rename to it",
INTEGERP (ok_if_already_exists), 0, 0);
- if (0 > rename (SDATA (encoded_file), SDATA (encoded_newname)))
+ if (0 > rename (SSDATA (encoded_file), SSDATA (encoded_newname)))
{
if (errno == EXDEV)
{
- int count;
-#ifdef S_IFLNK
+ ptrdiff_t count;
symlink_target = Ffile_symlink_p (file);
if (! NILP (symlink_target))
Fmake_symbolic_link (symlink_target, newname,
NILP (ok_if_already_exists) ? Qnil : Qt);
- else
-#endif
- if (!NILP (Ffile_directory_p (file)))
+ else if (!NILP (Ffile_directory_p (file)))
call4 (Qcopy_directory, file, newname, Qt, Qnil);
else
/* We have already prompted if it was an integer, so don't
count = SPECPDL_INDEX ();
specbind (Qdelete_by_moving_to_trash, Qnil);
- if (!NILP (Ffile_directory_p (file))
-#ifdef S_IFLNK
- && NILP (symlink_target)
-#endif
- )
+ if (!NILP (Ffile_directory_p (file)) && NILP (symlink_target))
call2 (Qdelete_directory, file, Qt);
else
Fdelete_file (file, Qnil);
barf_or_query_if_file_exists (newname, "make it a new name",
INTEGERP (ok_if_already_exists), 0, 0);
- unlink (SDATA (newname));
- if (0 > link (SDATA (encoded_file), SDATA (encoded_newname)))
+ unlink (SSDATA (newname));
+ if (0 > link (SSDATA (encoded_file), SSDATA (encoded_newname)))
report_file_error ("Adding new name", list2 (file, newname));
UNGCPRO;
RETURN_UNGCPRO (call4 (handler, Qmake_symbolic_link, filename,
linkname, ok_if_already_exists));
-#ifdef S_IFLNK
encoded_filename = ENCODE_FILE (filename);
encoded_linkname = ENCODE_FILE (linkname);
|| INTEGERP (ok_if_already_exists))
barf_or_query_if_file_exists (linkname, "make it a link",
INTEGERP (ok_if_already_exists), 0, 0);
- if (0 > symlink (SDATA (encoded_filename),
- SDATA (encoded_linkname)))
+ if (0 > symlink (SSDATA (encoded_filename),
+ SSDATA (encoded_linkname)))
{
/* If we didn't complain already, silently delete existing file. */
if (errno == EEXIST)
{
- unlink (SDATA (encoded_linkname));
- if (0 <= symlink (SDATA (encoded_filename),
- SDATA (encoded_linkname)))
+ unlink (SSDATA (encoded_linkname));
+ if (0 <= symlink (SSDATA (encoded_filename),
+ SSDATA (encoded_linkname)))
{
UNGCPRO;
return Qnil;
}
}
+ if (errno == ENOSYS)
+ {
+ UNGCPRO;
+ xsignal1 (Qfile_error,
+ build_string ("Symbolic links are not supported"));
+ }
report_file_error ("Making symbolic link", list2 (filename, linkname));
}
UNGCPRO;
return Qnil;
-
-#else
- UNGCPRO;
- xsignal1 (Qfile_error, build_string ("Symbolic links are not supported"));
-
-#endif /* S_IFLNK */
}
\f
(Lisp_Object filename)
{
CHECK_STRING (filename);
- return file_name_absolute_p (SDATA (filename)) ? Qt : Qnil;
+ return file_name_absolute_p (SSDATA (filename)) ? Qt : Qnil;
}
\f
/* Return nonzero if file FILENAME exists and can be executed. */
check_executable (char *filename)
{
#ifdef DOS_NT
- int len = strlen (filename);
- char *suffix;
struct stat st;
if (stat (filename, &st) < 0)
return 0;
struct stat st;
if (stat (filename, &st) < 0)
return 0;
- return (st.st_mode & S_IWRITE || (st.st_mode & S_IFMT) == S_IFDIR);
+ return (st.st_mode & S_IWRITE || S_ISDIR (st.st_mode));
#else /* not MSDOS */
#ifdef HAVE_EUIDACCESS
return (euidaccess (filename, 2) >= 0);
absname = ENCODE_FILE (absname);
- return (stat (SDATA (absname), &statbuf) >= 0) ? Qt : Qnil;
+ return (stat (SSDATA (absname), &statbuf) >= 0) ? Qt : Qnil;
}
DEFUN ("file-executable-p", Ffile_executable_p, Sfile_executable_p, 1, 1, 0,
absname = ENCODE_FILE (absname);
- return (check_executable (SDATA (absname)) ? Qt : Qnil);
+ return (check_executable (SSDATA (absname)) ? Qt : Qnil);
}
DEFUN ("file-readable-p", Ffile_readable_p, Sfile_readable_p, 1, 1, 0,
absname = ENCODE_FILE (absname);
-#if defined(DOS_NT) || defined(macintosh)
+#if defined (DOS_NT) || defined (macintosh)
/* Under MS-DOS, Windows, and Macintosh, open does not work for
directories. */
if (access (SDATA (absname), 0) == 0)
return Qnil;
#else /* not DOS_NT and not macintosh */
flags = O_RDONLY;
-#if defined (S_ISFIFO) && defined (O_NONBLOCK)
+#ifdef O_NONBLOCK
/* Opening a fifo without O_NONBLOCK can wait.
We don't want to wait. But we don't want to mess wth O_NONBLOCK
except in the case of a fifo, on a system which handles it. */
- desc = stat (SDATA (absname), &statbuf);
+ desc = stat (SSDATA (absname), &statbuf);
if (desc < 0)
return Qnil;
if (S_ISFIFO (statbuf.st_mode))
flags |= O_NONBLOCK;
#endif
- desc = emacs_open (SDATA (absname), flags, 0);
+ desc = emacs_open (SSDATA (absname), flags, 0);
if (desc < 0)
return Qnil;
emacs_close (desc);
return call2 (handler, Qfile_writable_p, absname);
encoded = ENCODE_FILE (absname);
- if (stat (SDATA (encoded), &statbuf) >= 0)
- return (check_writable (SDATA (encoded))
+ if (stat (SSDATA (encoded), &statbuf) >= 0)
+ return (check_writable (SSDATA (encoded))
? Qt : Qnil);
dir = Ffile_name_directory (absname);
should check ACLs though, which do affect this. */
if (stat (SDATA (dir), &statbuf) < 0)
return Qnil;
- return (statbuf.st_mode & S_IFMT) == S_IFDIR ? Qt : Qnil;
+ return S_ISDIR (statbuf.st_mode) ? Qt : Qnil;
#else
- return (check_writable (!NILP (dir) ? (char *) SDATA (dir) : "")
+ return (check_writable (!NILP (dir) ? SSDATA (dir) : "")
? Qt : Qnil);
#endif
}
encoded_filename = ENCODE_FILE (absname);
- fd = emacs_open (SDATA (encoded_filename), O_RDONLY, 0);
+ fd = emacs_open (SSDATA (encoded_filename), O_RDONLY, 0);
if (fd < 0)
- report_file_error (SDATA (string), Fcons (filename, Qnil));
+ report_file_error (SSDATA (string), Fcons (filename, Qnil));
emacs_close (fd);
return Qnil;
(Lisp_Object filename)
{
Lisp_Object handler;
+ char *buf;
+ Lisp_Object val;
+ char readlink_buf[READLINK_BUFSIZE];
CHECK_STRING (filename);
filename = Fexpand_file_name (filename, Qnil);
if (!NILP (handler))
return call2 (handler, Qfile_symlink_p, filename);
-#ifdef S_IFLNK
- {
- char *buf;
- int bufsize;
- int valsize;
- Lisp_Object val;
-
filename = ENCODE_FILE (filename);
- bufsize = 50;
- buf = NULL;
- do
- {
- bufsize *= 2;
- buf = (char *) xrealloc (buf, bufsize);
- memset (buf, 0, bufsize);
-
- errno = 0;
- valsize = readlink (SDATA (filename), buf, bufsize);
- if (valsize == -1)
- {
-#ifdef ERANGE
- /* HP-UX reports ERANGE if buffer is too small. */
- if (errno == ERANGE)
- valsize = bufsize;
- else
-#endif
- {
- xfree (buf);
- return Qnil;
- }
- }
- }
- while (valsize >= bufsize);
+ buf = emacs_readlink (SSDATA (filename), readlink_buf);
+ if (! buf)
+ return Qnil;
- val = make_string (buf, valsize);
+ val = build_string (buf);
if (buf[0] == '/' && strchr (buf, ':'))
val = concat2 (build_string ("/:"), val);
- xfree (buf);
+ if (buf != readlink_buf)
+ xfree (buf);
val = DECODE_FILE (val);
return val;
- }
-#else /* not S_IFLNK */
- return Qnil;
-#endif /* not S_IFLNK */
}
DEFUN ("file-directory-p", Ffile_directory_p, Sfile_directory_p, 1, 1, 0,
struct stat st;
Lisp_Object handler;
- absname = expand_and_dir_to_file (filename, current_buffer->directory);
+ absname = expand_and_dir_to_file (filename, BVAR (current_buffer, directory));
/* If the file name has special constructs in it,
call the corresponding file handler. */
absname = ENCODE_FILE (absname);
- if (stat (SDATA (absname), &st) < 0)
+ if (stat (SSDATA (absname), &st) < 0)
return Qnil;
- return (st.st_mode & S_IFMT) == S_IFDIR ? Qt : Qnil;
+ return S_ISDIR (st.st_mode) ? Qt : Qnil;
}
-DEFUN ("file-accessible-directory-p", Ffile_accessible_directory_p, Sfile_accessible_directory_p, 1, 1, 0,
+DEFUN ("file-accessible-directory-p", Ffile_accessible_directory_p,
+ Sfile_accessible_directory_p, 1, 1, 0,
doc: /* Return t if file FILENAME names a directory you can open.
For the value to be t, FILENAME must specify the name of a directory as a file,
and the directory must allow you to open files in it. In order to use a
struct stat st;
Lisp_Object handler;
- absname = expand_and_dir_to_file (filename, current_buffer->directory);
+ absname = expand_and_dir_to_file (filename, BVAR (current_buffer, directory));
/* If the file name has special constructs in it,
call the corresponding file handler. */
if (result < 0)
return Qnil;
- return (st.st_mode & S_IFMT) == S_IFREG ? Qt : Qnil;
+ return S_ISREG (st.st_mode) ? Qt : Qnil;
}
#else
- if (stat (SDATA (absname), &st) < 0)
+ if (stat (SSDATA (absname), &st) < 0)
return Qnil;
- return (st.st_mode & S_IFMT) == S_IFREG ? Qt : Qnil;
+ return S_ISREG (st.st_mode) ? Qt : Qnil;
#endif
}
\f
context_t context;
#endif
- absname = expand_and_dir_to_file (filename, current_buffer->directory);
+ absname = expand_and_dir_to_file (filename, BVAR (current_buffer, directory));
/* If the file name has special constructs in it,
call the corresponding file handler. */
#if HAVE_LIBSELINUX
if (is_selinux_enabled ())
{
- conlength = lgetfilecon (SDATA (absname), &con);
+ conlength = lgetfilecon (SSDATA (absname), &con);
if (conlength > 0)
{
context = context_new (con);
}
#endif
- return Flist (sizeof(values) / sizeof(values[0]), values);
+ return Flist (sizeof (values) / sizeof (values[0]), values);
}
\f
DEFUN ("set-file-selinux-context", Fset_file_selinux_context,
is disabled. */)
(Lisp_Object filename, Lisp_Object context)
{
- Lisp_Object absname, encoded_absname;
+ Lisp_Object absname;
Lisp_Object handler;
+#if HAVE_LIBSELINUX
+ Lisp_Object encoded_absname;
Lisp_Object user = CAR_SAFE (context);
Lisp_Object role = CAR_SAFE (CDR_SAFE (context));
Lisp_Object type = CAR_SAFE (CDR_SAFE (CDR_SAFE (context)));
Lisp_Object range = CAR_SAFE (CDR_SAFE (CDR_SAFE (CDR_SAFE (context))));
-#if HAVE_LIBSELINUX
security_context_t con;
int fail, conlength;
context_t parsed_con;
#endif
- absname = Fexpand_file_name (filename, current_buffer->directory);
+ absname = Fexpand_file_name (filename, BVAR (current_buffer, directory));
/* If the file name has special constructs in it,
call the corresponding file handler. */
if (!NILP (handler))
return call3 (handler, Qset_file_selinux_context, absname, context);
- encoded_absname = ENCODE_FILE (absname);
-
#if HAVE_LIBSELINUX
if (is_selinux_enabled ())
{
/* Get current file context. */
- conlength = lgetfilecon (SDATA (encoded_absname), &con);
+ encoded_absname = ENCODE_FILE (absname);
+ conlength = lgetfilecon (SSDATA (encoded_absname), &con);
if (conlength > 0)
{
parsed_con = context_new (con);
/* Change the parts defined in the parameter.*/
if (STRINGP (user))
{
- if (context_user_set (parsed_con, SDATA (user)))
+ if (context_user_set (parsed_con, SSDATA (user)))
error ("Doing context_user_set");
}
if (STRINGP (role))
{
- if (context_role_set (parsed_con, SDATA (role)))
+ if (context_role_set (parsed_con, SSDATA (role)))
error ("Doing context_role_set");
}
if (STRINGP (type))
{
- if (context_type_set (parsed_con, SDATA (type)))
+ if (context_type_set (parsed_con, SSDATA (type)))
error ("Doing context_type_set");
}
if (STRINGP (range))
{
- if (context_range_set (parsed_con, SDATA (range)))
+ if (context_range_set (parsed_con, SSDATA (range)))
error ("Doing context_range_set");
}
/* Set the modified context back to the file. */
- fail = lsetfilecon (SDATA (encoded_absname), context_str (parsed_con));
+ fail = lsetfilecon (SSDATA (encoded_absname),
+ context_str (parsed_con));
if (fail)
report_file_error ("Doing lsetfilecon", Fcons (absname, Qnil));
context_free (parsed_con);
}
else
- report_file_error("Doing lgetfilecon", Fcons (absname, Qnil));
+ report_file_error ("Doing lgetfilecon", Fcons (absname, Qnil));
if (con)
freecon (con);
struct stat st;
Lisp_Object handler;
- absname = expand_and_dir_to_file (filename, current_buffer->directory);
+ absname = expand_and_dir_to_file (filename, BVAR (current_buffer, directory));
/* If the file name has special constructs in it,
call the corresponding file handler. */
absname = ENCODE_FILE (absname);
- if (stat (SDATA (absname), &st) < 0)
+ if (stat (SSDATA (absname), &st) < 0)
return Qnil;
return make_number (st.st_mode & 07777);
Lisp_Object absname, encoded_absname;
Lisp_Object handler;
- absname = Fexpand_file_name (filename, current_buffer->directory);
+ absname = Fexpand_file_name (filename, BVAR (current_buffer, directory));
CHECK_NUMBER (mode);
/* If the file name has special constructs in it,
encoded_absname = ENCODE_FILE (absname);
- if (chmod (SDATA (encoded_absname), XINT (mode)) < 0)
+ if (chmod (SSDATA (encoded_absname), XINT (mode) & 07777) < 0)
report_file_error ("Doing chmod", Fcons (absname, Qnil));
return Qnil;
\f
DEFUN ("set-file-times", Fset_file_times, Sset_file_times, 1, 2, 0,
- doc: /* Set times of file FILENAME to TIME.
+ doc: /* Set times of file FILENAME to TIMESTAMP.
Set both access and modification times.
Return t on success, else nil.
-Use the current time if TIME is nil. TIME is in the format of
+Use the current time if TIMESTAMP is nil. TIMESTAMP is in the format of
`current-time'. */)
- (Lisp_Object filename, Lisp_Object time)
+ (Lisp_Object filename, Lisp_Object timestamp)
{
Lisp_Object absname, encoded_absname;
Lisp_Object handler;
time_t sec;
int usec;
- if (! lisp_time_argument (time, &sec, &usec))
+ if (! lisp_time_argument (timestamp, &sec, &usec))
error ("Invalid time specification");
- absname = Fexpand_file_name (filename, current_buffer->directory);
+ absname = Fexpand_file_name (filename, BVAR (current_buffer, directory));
/* If the file name has special constructs in it,
call the corresponding file handler. */
handler = Ffind_file_name_handler (absname, Qset_file_times);
if (!NILP (handler))
- return call3 (handler, Qset_file_times, absname, time);
+ return call3 (handler, Qset_file_times, absname, timestamp);
encoded_absname = ENCODE_FILE (absname);
EMACS_SET_SECS (t, sec);
EMACS_SET_USECS (t, usec);
- if (set_file_times (SDATA (encoded_absname), t, t))
+ if (set_file_times (SSDATA (encoded_absname), t, t))
{
#ifdef DOS_NT
struct stat st;
/* Setting times on a directory always fails. */
- if (stat (SDATA (encoded_absname), &st) == 0
- && (st.st_mode & S_IFMT) == S_IFDIR)
+ if (stat (SSDATA (encoded_absname), &st) == 0 && S_ISDIR (st.st_mode))
return Qnil;
#endif
report_file_error ("Setting file times", Fcons (absname, Qnil));
absname1 = Qnil;
GCPRO2 (absname1, file2);
- absname1 = expand_and_dir_to_file (file1, current_buffer->directory);
- absname2 = expand_and_dir_to_file (file2, current_buffer->directory);
+ absname1 = expand_and_dir_to_file (file1, BVAR (current_buffer, directory));
+ absname2 = expand_and_dir_to_file (file2, BVAR (current_buffer, directory));
UNGCPRO;
/* If the file name has special constructs in it,
absname2 = ENCODE_FILE (absname2);
UNGCPRO;
- if (stat (SDATA (absname1), &st) < 0)
+ if (stat (SSDATA (absname1), &st) < 0)
return Qnil;
mtime1 = st.st_mtime;
- if (stat (SDATA (absname2), &st) < 0)
+ if (stat (SSDATA (absname2), &st) < 0)
return Qt;
return (mtime1 > st.st_mtime) ? Qt : Qnil;
}
\f
-#ifdef DOS_NT
-Lisp_Object Qfind_buffer_file_type;
-#endif /* DOS_NT */
-
#ifndef READ_BUF_SIZE
#define READ_BUF_SIZE (64 << 10)
#endif
+/* Some buffer offsets are stored in 'int' variables. */
+verify (READ_BUF_SIZE <= INT_MAX);
/* This function is called after Lisp functions to decide a coding
system are called, or when they cause an error. Before they are
TEMP_SET_PT_BOTH (BEG, BEG_BYTE);
/* Now we are safe to change the buffer's multibyteness directly. */
- current_buffer->enable_multibyte_characters = multibyte;
- current_buffer->undo_list = undo_list;
+ BVAR (current_buffer, enable_multibyte_characters) = multibyte;
+ BVAR (current_buffer, undo_list) = undo_list;
return Qnil;
}
/* Used to pass values from insert-file-contents to read_non_regular. */
static int non_regular_fd;
-static EMACS_INT non_regular_inserted;
-static EMACS_INT non_regular_nbytes;
+static ptrdiff_t non_regular_inserted;
+static int non_regular_nbytes;
/* Read from a non-regular file.
static Lisp_Object
read_non_regular (Lisp_Object ignore)
{
- EMACS_INT nbytes;
+ int nbytes;
immediate_quit = 1;
QUIT;
nbytes = emacs_read (non_regular_fd,
- BEG_ADDR + PT_BYTE - BEG_BYTE + non_regular_inserted,
+ ((char *) BEG_ADDR + PT_BYTE - BEG_BYTE
+ + non_regular_inserted),
non_regular_nbytes);
immediate_quit = 0;
return make_number (nbytes);
return Qnil;
}
+/* Reposition FD to OFFSET, based on WHENCE. This acts like lseek
+ except that it also tests for OFFSET being out of lseek's range. */
+static off_t
+emacs_lseek (int fd, EMACS_INT offset, int whence)
+{
+ /* Use "&" rather than "&&" to suppress a bogus GCC warning; see
+ <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43772>. */
+ if (! ((TYPE_MINIMUM (off_t) <= offset) & (offset <= TYPE_MAXIMUM (off_t))))
+ {
+ errno = EINVAL;
+ return -1;
+ }
+ return lseek (fd, offset, whence);
+}
+
DEFUN ("insert-file-contents", Finsert_file_contents, Sinsert_file_contents,
1, 5, 0,
{
struct stat st;
register int fd;
- EMACS_INT inserted = 0;
+ ptrdiff_t inserted = 0;
int nochange = 0;
- register EMACS_INT how_much;
- register EMACS_INT unprocessed;
- int count = SPECPDL_INDEX ();
+ register ptrdiff_t how_much;
+ off_t beg_offset, end_offset;
+ register int unprocessed;
+ ptrdiff_t count = SPECPDL_INDEX ();
struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5;
Lisp_Object handler, val, insval, orig_filename, old_undo;
Lisp_Object p;
- EMACS_INT total = 0;
+ ptrdiff_t total = 0;
int not_regular = 0;
- unsigned char read_buf[READ_BUF_SIZE];
+ int save_errno = 0;
+ char read_buf[READ_BUF_SIZE];
struct coding_system coding;
- unsigned char buffer[1 << 14];
+ char buffer[1 << 14];
int replace_handled = 0;
int set_coding_system = 0;
Lisp_Object coding_system;
if (current_buffer->base_buffer && ! NILP (visit))
error ("Cannot do file visiting in an indirect buffer");
- if (!NILP (current_buffer->read_only))
+ if (!NILP (BVAR (current_buffer, read_only)))
Fbarf_if_buffer_read_only ();
val = Qnil;
{
val = call6 (handler, Qinsert_file_contents, filename,
visit, beg, end, replace);
- if (CONSP (val) && CONSP (XCDR (val)))
+ if (CONSP (val) && CONSP (XCDR (val))
+ && RANGED_INTEGERP (0, XCAR (XCDR (val)), ZV - PT))
inserted = XINT (XCAR (XCDR (val)));
goto handled;
}
/* Tell stat to use expensive method to get accurate info. */
Vw32_get_true_file_attributes = Qt;
- total = stat (SDATA (filename), &st);
+ total = stat (SSDATA (filename), &st);
Vw32_get_true_file_attributes = tem;
}
if (total < 0)
#else
- if (stat (SDATA (filename), &st) < 0)
+ if (stat (SSDATA (filename), &st) < 0)
#endif /* WINDOWSNT */
{
- if (fd >= 0) emacs_close (fd);
badopen:
+ save_errno = errno;
if (NILP (visit))
report_file_error ("Opening input file", Fcons (orig_filename, Qnil));
st.st_mtime = -1;
+ st.st_size = -1;
how_much = 0;
if (!NILP (Vcoding_system_for_read))
Fset (Qbuffer_file_coding_system, Vcoding_system_for_read);
goto notfound;
}
-#ifdef S_IFREG
/* This code will need to be changed in order to work on named
pipes, and it's probably just not worth it. So we should at
least signal an error. */
xsignal2 (Qfile_error,
build_string ("not a regular file"), orig_filename);
}
-#endif
if (fd < 0)
- if ((fd = emacs_open (SDATA (filename), O_RDONLY, 0)) < 0)
+ if ((fd = emacs_open (SSDATA (filename), O_RDONLY, 0)) < 0)
goto badopen;
/* Replacement should preserve point as it preserves markers. */
record_unwind_protect (close_file_unwind, make_number (fd));
- /* Can happen on any platform that uses long as type of off_t, but allows
- file sizes to exceed 2Gb, so give a suitable message. */
- if (! not_regular && st.st_size < 0)
- error ("Maximum buffer size exceeded");
-
- /* Prevent redisplay optimizations. */
- current_buffer->clip_changed = 1;
if (!NILP (visit))
{
}
if (!NILP (beg))
- CHECK_NUMBER (beg);
+ {
+ if (! (RANGED_INTEGERP (0, beg, TYPE_MAXIMUM (off_t))))
+ wrong_type_argument (intern ("file-offset"), beg);
+ beg_offset = XFASTINT (beg);
+ }
else
- XSETFASTINT (beg, 0);
+ beg_offset = 0;
if (!NILP (end))
- CHECK_NUMBER (end);
+ {
+ if (! (RANGED_INTEGERP (0, end, TYPE_MAXIMUM (off_t))))
+ wrong_type_argument (intern ("file-offset"), end);
+ end_offset = XFASTINT (end);
+ }
else
{
- if (! not_regular)
+ if (not_regular)
+ end_offset = TYPE_MAXIMUM (off_t);
+ else
{
- XSETINT (end, st.st_size);
-
- /* Arithmetic overflow can occur if an Emacs integer cannot
- represent the file size, or if the calculations below
- overflow. The calculations below double the file size
- twice, so check that it can be multiplied by 4 safely. */
- if (XINT (end) != st.st_size
- /* Actually, it should test either INT_MAX or LONG_MAX
- depending on which one is used for EMACS_INT. But in
- any case, in practice, this test is redundant with the
- one above.
- || st.st_size > INT_MAX / 4 */)
- error ("Maximum buffer size exceeded");
+ end_offset = st.st_size;
+
+ /* A negative size can happen on a platform that allows file
+ sizes greater than the maximum off_t value. */
+ if (end_offset < 0)
+ buffer_overflow ();
/* The file size returned from stat may be zero, but data
may be readable nonetheless, for example when this is a
file in the /proc filesystem. */
- if (st.st_size == 0)
- XSETINT (end, READ_BUF_SIZE);
+ if (end_offset == 0)
+ end_offset = READ_BUF_SIZE;
+ }
+ }
+
+ /* Check now whether the buffer will become too large,
+ in the likely case where the file's length is not changing.
+ This saves a lot of needless work before a buffer overflow. */
+ if (! not_regular)
+ {
+ /* The likely offset where we will stop reading. We could read
+ more (or less), if the file grows (or shrinks) as we read it. */
+ off_t likely_end = min (end_offset, st.st_size);
+
+ if (beg_offset < likely_end)
+ {
+ ptrdiff_t buf_bytes =
+ Z_BYTE - (!NILP (replace) ? ZV_BYTE - BEGV_BYTE : 0);
+ ptrdiff_t buf_growth_max = BUF_BYTES_MAX - buf_bytes;
+ off_t likely_growth = likely_end - beg_offset;
+ if (buf_growth_max < likely_growth)
+ buffer_overflow ();
}
}
+ /* Prevent redisplay optimizations. */
+ current_buffer->clip_changed = 1;
+
if (EQ (Vcoding_system_for_read, Qauto_save_coding))
{
coding_system = coding_inherit_eol_type (Qutf_8_emacs, Qunix);
We assume that the 1K-byte and 3K-byte for heading
and tailing respectively are sufficient for this
purpose. */
- EMACS_INT nread;
+ int nread;
if (st.st_size <= (1024 * 4))
nread = emacs_read (fd, read_buf, 1024 * 4);
nread = emacs_read (fd, read_buf, 1024);
if (nread >= 0)
{
- if (lseek (fd, st.st_size - (1024 * 3), 0) < 0)
+ if (lseek (fd, st.st_size - (1024 * 3), SEEK_SET) < 0)
report_file_error ("Setting file position",
Fcons (orig_filename, Qnil));
nread += emacs_read (fd, read_buf + nread, 1024 * 3);
else if (nread > 0)
{
struct buffer *prev = current_buffer;
- Lisp_Object buffer;
+ Lisp_Object workbuf;
struct buffer *buf;
record_unwind_protect (Fset_buffer, Fcurrent_buffer ());
- buffer = Fget_buffer_create (build_string (" *code-converting-work*"));
- buf = XBUFFER (buffer);
+ workbuf = Fget_buffer_create (build_string (" *code-converting-work*"));
+ buf = XBUFFER (workbuf);
delete_all_overlays (buf);
- buf->directory = current_buffer->directory;
- buf->read_only = Qnil;
- buf->filename = Qnil;
- buf->undo_list = Qt;
+ BVAR (buf, directory) = BVAR (current_buffer, directory);
+ BVAR (buf, read_only) = Qnil;
+ BVAR (buf, filename) = Qnil;
+ BVAR (buf, undo_list) = Qt;
eassert (buf->overlays_before == NULL);
eassert (buf->overlays_after == NULL);
set_buffer_internal (buf);
Ferase_buffer ();
- buf->enable_multibyte_characters = Qnil;
+ BVAR (buf, enable_multibyte_characters) = Qnil;
- insert_1_both (read_buf, nread, nread, 0, 0, 0);
+ insert_1_both ((char *) read_buf, nread, nread, 0, 0, 0);
TEMP_SET_PT_BOTH (BEG, BEG_BYTE);
coding_system = call2 (Vset_auto_coding_function,
filename, make_number (nread));
specpdl_ptr--;
/* Rewind the file for the actual read done later. */
- if (lseek (fd, 0, 0) < 0)
+ if (lseek (fd, 0, SEEK_SET) < 0)
report_file_error ("Setting file position",
Fcons (orig_filename, Qnil));
}
else
CHECK_CODING_SYSTEM (coding_system);
- if (NILP (current_buffer->enable_multibyte_characters))
+ if (NILP (BVAR (current_buffer, enable_multibyte_characters)))
/* We must suppress all character code conversion except for
end-of-line conversion. */
coding_system = raw_text_coding_system (coding_system);
/* same_at_start and same_at_end count bytes,
because file access counts bytes
and BEG and END count bytes. */
- EMACS_INT same_at_start = BEGV_BYTE;
- EMACS_INT same_at_end = ZV_BYTE;
- EMACS_INT overlap;
+ ptrdiff_t same_at_start = BEGV_BYTE;
+ ptrdiff_t same_at_end = ZV_BYTE;
+ ptrdiff_t overlap;
/* There is still a possibility we will find the need to do code
conversion. If that happens, we set this variable to 1 to
give up on handling REPLACE in the optimized way. */
int giveup_match_end = 0;
- if (XINT (beg) != 0)
+ if (beg_offset != 0)
{
- if (lseek (fd, XINT (beg), 0) < 0)
+ if (lseek (fd, beg_offset, SEEK_SET) < 0)
report_file_error ("Setting file position",
Fcons (orig_filename, Qnil));
}
match the text at the beginning of the buffer. */
while (1)
{
- EMACS_INT nread, bufpos;
+ int nread, bufpos;
nread = emacs_read (fd, buffer, sizeof buffer);
if (nread < 0)
error ("IO error reading %s: %s",
- SDATA (orig_filename), emacs_strerror (errno));
+ SSDATA (orig_filename), emacs_strerror (errno));
else if (nread == 0)
break;
if (CODING_REQUIRE_DETECTION (&coding))
{
- coding_system = detect_coding_system (buffer, nread, nread, 1, 0,
+ coding_system = detect_coding_system ((unsigned char *) buffer,
+ nread, nread, 1, 0,
coding_system);
setup_coding_system (coding_system, &coding);
}
immediate_quit = 0;
/* If the file matches the buffer completely,
there's no need to replace anything. */
- if (same_at_start - BEGV_BYTE == XINT (end))
+ if (same_at_start - BEGV_BYTE == end_offset - beg_offset)
{
emacs_close (fd);
specpdl_ptr--;
already found that decoding is necessary, don't waste time. */
while (!giveup_match_end)
{
- EMACS_INT total_read, nread, bufpos, curpos, trial;
+ int total_read, nread, bufpos, trial;
+ off_t curpos;
/* At what file position are we now scanning? */
- curpos = XINT (end) - (ZV_BYTE - same_at_end);
+ curpos = end_offset - (ZV_BYTE - same_at_end);
/* If the entire file matches the buffer tail, stop the scan. */
if (curpos == 0)
break;
/* How much can we scan in the next step? */
trial = min (curpos, sizeof buffer);
- if (lseek (fd, curpos - trial, 0) < 0)
+ if (lseek (fd, curpos - trial, SEEK_SET) < 0)
report_file_error ("Setting file position",
Fcons (orig_filename, Qnil));
we cannot use this method; giveup and try the other. */
if (same_at_end > same_at_start
&& FETCH_BYTE (same_at_end - 1) >= 0200
- && ! NILP (current_buffer->enable_multibyte_characters)
+ && ! NILP (BVAR (current_buffer, enable_multibyte_characters))
&& (CODING_MAY_REQUIRE_DECODING (&coding)))
giveup_match_end = 1;
break;
if (! giveup_match_end)
{
- EMACS_INT temp;
+ ptrdiff_t temp;
/* We win! We can handle REPLACE the optimized way. */
/* Extend the start of non-matching text area to multibyte
character boundary. */
- if (! NILP (current_buffer->enable_multibyte_characters))
+ if (! NILP (BVAR (current_buffer, enable_multibyte_characters)))
while (same_at_start > BEGV_BYTE
&& ! CHAR_HEAD_P (FETCH_BYTE (same_at_start)))
same_at_start--;
/* Extend the end of non-matching text area to multibyte
character boundary. */
- if (! NILP (current_buffer->enable_multibyte_characters))
+ if (! NILP (BVAR (current_buffer, enable_multibyte_characters)))
while (same_at_end < ZV_BYTE
&& ! CHAR_HEAD_P (FETCH_BYTE (same_at_end)))
same_at_end++;
/* Don't try to reuse the same piece of text twice. */
overlap = (same_at_start - BEGV_BYTE
- - (same_at_end + st.st_size - ZV));
+ - (same_at_end
+ + (! NILP (end) ? end_offset : st.st_size) - ZV_BYTE));
if (overlap > 0)
same_at_end += overlap;
/* Arrange to read only the nonmatching middle part of the file. */
- XSETFASTINT (beg, XINT (beg) + (same_at_start - BEGV_BYTE));
- XSETFASTINT (end, XINT (end) - (ZV_BYTE - same_at_end));
+ beg_offset += same_at_start - BEGV_BYTE;
+ end_offset -= ZV_BYTE - same_at_end;
del_range_byte (same_at_start, same_at_end, 0);
/* Insert from the file at the proper position. */
in a more optimized way. */
if (!NILP (replace) && ! replace_handled && BEGV < ZV)
{
- EMACS_INT same_at_start = BEGV_BYTE;
- EMACS_INT same_at_end = ZV_BYTE;
- EMACS_INT same_at_start_charpos;
- EMACS_INT inserted_chars;
- EMACS_INT overlap;
- EMACS_INT bufpos;
+ ptrdiff_t same_at_start = BEGV_BYTE;
+ ptrdiff_t same_at_end = ZV_BYTE;
+ ptrdiff_t same_at_start_charpos;
+ ptrdiff_t inserted_chars;
+ ptrdiff_t overlap;
+ ptrdiff_t bufpos;
unsigned char *decoded;
- EMACS_INT temp;
- int this_count = SPECPDL_INDEX ();
- int multibyte = ! NILP (current_buffer->enable_multibyte_characters);
+ ptrdiff_t temp;
+ ptrdiff_t this = 0;
+ ptrdiff_t this_count = SPECPDL_INDEX ();
+ int multibyte = ! NILP (BVAR (current_buffer, enable_multibyte_characters));
Lisp_Object conversion_buffer;
conversion_buffer = code_conversion_save (1, multibyte);
/* First read the whole file, performing code conversion into
CONVERSION_BUFFER. */
- if (lseek (fd, XINT (beg), 0) < 0)
+ if (lseek (fd, beg_offset, SEEK_SET) < 0)
report_file_error ("Setting file position",
Fcons (orig_filename, Qnil));
/* We read one bunch by one (READ_BUF_SIZE bytes) to allow
quitting while reading a huge while. */
/* try is reserved in some compilers (Microsoft C) */
- EMACS_INT trytry = min (total - how_much,
- READ_BUF_SIZE - unprocessed);
- EMACS_INT this;
+ int trytry = min (total - how_much, READ_BUF_SIZE - unprocessed);
/* Allow quitting out of the actual I/O. */
immediate_quit = 1;
immediate_quit = 0;
if (this <= 0)
- {
- if (this < 0)
- how_much = this;
- break;
- }
+ break;
how_much += this;
BUF_TEMP_SET_PT (XBUFFER (conversion_buffer),
BUF_Z (XBUFFER (conversion_buffer)));
- decode_coding_c_string (&coding, read_buf, unprocessed + this,
- conversion_buffer);
+ decode_coding_c_string (&coding, (unsigned char *) read_buf,
+ unprocessed + this, conversion_buffer);
unprocessed = coding.carryover_bytes;
if (coding.carryover_bytes > 0)
memcpy (read_buf, coding.carryover, unprocessed);
/* At this point, HOW_MUCH should equal TOTAL, or should be <= 0
if we couldn't read the file. */
- if (how_much < 0)
+ if (this < 0)
error ("IO error reading %s: %s",
SDATA (orig_filename), emacs_strerror (errno));
if (unprocessed > 0)
{
coding.mode |= CODING_MODE_LAST_BLOCK;
- decode_coding_c_string (&coding, read_buf, unprocessed,
- conversion_buffer);
+ decode_coding_c_string (&coding, (unsigned char *) read_buf,
+ unprocessed, conversion_buffer);
coding.mode &= ~CODING_MODE_LAST_BLOCK;
}
/* Extend the start of non-matching text area to the previous
multibyte character boundary. */
- if (! NILP (current_buffer->enable_multibyte_characters))
+ if (! NILP (BVAR (current_buffer, enable_multibyte_characters)))
while (same_at_start > BEGV_BYTE
&& ! CHAR_HEAD_P (FETCH_BYTE (same_at_start)))
same_at_start--;
/* Extend the end of non-matching text area to the next
multibyte character boundary. */
- if (! NILP (current_buffer->enable_multibyte_characters))
+ if (! NILP (BVAR (current_buffer, enable_multibyte_characters)))
while (same_at_end < ZV_BYTE
&& ! CHAR_HEAD_P (FETCH_BYTE (same_at_end)))
same_at_end++;
}
if (! not_regular)
- {
- register Lisp_Object temp;
-
- total = XINT (end) - XINT (beg);
-
- /* Make sure point-max won't overflow after this insertion. */
- XSETINT (temp, total);
- if (total != XINT (temp))
- error ("Maximum buffer size exceeded");
- }
+ total = end_offset - beg_offset;
else
/* For a special file, all we can do is guess. */
total = READ_BUF_SIZE;
- if (NILP (visit) && inserted > 0)
+ if (NILP (visit) && total > 0)
{
#ifdef CLASH_DETECTION
- if (!NILP (current_buffer->file_truename)
+ if (!NILP (BVAR (current_buffer, file_truename))
/* Make binding buffer-file-name to nil effective. */
- && !NILP (current_buffer->filename)
+ && !NILP (BVAR (current_buffer, filename))
&& SAVE_MODIFF >= MODIFF)
we_locked_file = 1;
#endif /* CLASH_DETECTION */
if (GAP_SIZE < total)
make_gap (total - GAP_SIZE);
- if (XINT (beg) != 0 || !NILP (replace))
+ if (beg_offset != 0 || !NILP (replace))
{
- if (lseek (fd, XINT (beg), 0) < 0)
+ if (lseek (fd, beg_offset, SEEK_SET) < 0)
report_file_error ("Setting file position",
Fcons (orig_filename, Qnil));
}
/* Here, we don't do code conversion in the loop. It is done by
decode_coding_gap after all data are read into the buffer. */
{
- EMACS_INT gap_size = GAP_SIZE;
+ ptrdiff_t gap_size = GAP_SIZE;
while (how_much < total)
{
/* try is reserved in some compilers (Microsoft C) */
- EMACS_INT trytry = min (total - how_much, READ_BUF_SIZE);
- EMACS_INT this;
+ int trytry = min (total - how_much, READ_BUF_SIZE);
+ ptrdiff_t this;
if (not_regular)
{
- Lisp_Object val;
+ Lisp_Object nbytes;
/* Maybe make more room. */
if (gap_size < trytry)
non_regular_fd = fd;
non_regular_inserted = inserted;
non_regular_nbytes = trytry;
- val = internal_condition_case_1 (read_non_regular, Qnil, Qerror,
- read_non_regular_quit);
- if (NILP (val))
+ nbytes = internal_condition_case_1 (read_non_regular,
+ Qnil, Qerror,
+ read_non_regular_quit);
+ if (NILP (nbytes))
{
read_quit = 1;
break;
}
- this = XINT (val);
+ this = XINT (nbytes);
}
else
{
here doesn't do any harm. */
immediate_quit = 1;
QUIT;
- this = emacs_read (fd, BEG_ADDR + PT_BYTE - BEG_BYTE + inserted, trytry);
+ this = emacs_read (fd,
+ ((char *) BEG_ADDR + PT_BYTE - BEG_BYTE
+ + inserted),
+ trytry);
immediate_quit = 0;
}
{
#ifdef CLASH_DETECTION
if (we_locked_file)
- unlock_file (current_buffer->file_truename);
+ unlock_file (BVAR (current_buffer, file_truename));
#endif
Vdeactivate_mark = old_Vdeactivate_mark;
}
care of marker adjustment. By this way, we can run Lisp
program safely before decoding the inserted text. */
Lisp_Object unwind_data;
- int count = SPECPDL_INDEX ();
+ ptrdiff_t count1 = SPECPDL_INDEX ();
- unwind_data = Fcons (current_buffer->enable_multibyte_characters,
- Fcons (current_buffer->undo_list,
+ unwind_data = Fcons (BVAR (current_buffer, enable_multibyte_characters),
+ Fcons (BVAR (current_buffer, undo_list),
Fcurrent_buffer ()));
- current_buffer->enable_multibyte_characters = Qnil;
- current_buffer->undo_list = Qt;
+ BVAR (current_buffer, enable_multibyte_characters) = Qnil;
+ BVAR (current_buffer, undo_list) = Qt;
record_unwind_protect (decide_coding_unwind, unwind_data);
if (inserted > 0 && ! NILP (Vset_auto_coding_function))
if (CONSP (coding_system))
coding_system = XCAR (coding_system);
}
- unbind_to (count, Qnil);
+ unbind_to (count1, Qnil);
inserted = Z_BYTE - BEG_BYTE;
}
else
CHECK_CODING_SYSTEM (coding_system);
- if (NILP (current_buffer->enable_multibyte_characters))
+ if (NILP (BVAR (current_buffer, enable_multibyte_characters)))
/* We must suppress all character code conversion except for
end-of-line conversion. */
coding_system = raw_text_coding_system (coding_system);
&& NILP (replace))
/* Visiting a file with these coding system makes the buffer
unibyte. */
- current_buffer->enable_multibyte_characters = Qnil;
+ BVAR (current_buffer, enable_multibyte_characters) = Qnil;
}
- coding.dst_multibyte = ! NILP (current_buffer->enable_multibyte_characters);
+ coding.dst_multibyte = ! NILP (BVAR (current_buffer, enable_multibyte_characters));
if (CODING_MAY_REQUIRE_DECODING (&coding)
&& (inserted > 0 || CODING_REQUIRE_FLUSHING (&coding)))
{
/* Now INSERTED is measured in characters. */
-#ifdef DOS_NT
- /* Use the conversion type to determine buffer-file-type
- (find-buffer-file-type is now used to help determine the
- conversion). */
- if ((VECTORP (CODING_ID_EOL_TYPE (coding.id))
- || EQ (CODING_ID_EOL_TYPE (coding.id), Qunix))
- && ! CODING_REQUIRE_DECODING (&coding))
- current_buffer->buffer_file_type = Qt;
- else
- current_buffer->buffer_file_type = Qnil;
-#endif
-
handled:
if (deferred_remove_unwind_protect)
if (!NILP (visit))
{
- if (!EQ (current_buffer->undo_list, Qt) && !nochange)
- current_buffer->undo_list = Qnil;
+ if (!EQ (BVAR (current_buffer, undo_list), Qt) && !nochange)
+ BVAR (current_buffer, undo_list) = Qnil;
if (NILP (handler))
{
current_buffer->modtime = st.st_mtime;
current_buffer->modtime_size = st.st_size;
- current_buffer->filename = orig_filename;
+ BVAR (current_buffer, filename) = orig_filename;
}
SAVE_MODIFF = MODIFF;
BUF_AUTOSAVE_MODIFF (current_buffer) = MODIFF;
- XSETFASTINT (current_buffer->save_length, Z - BEG);
+ XSETFASTINT (BVAR (current_buffer, save_length), Z - BEG);
#ifdef CLASH_DETECTION
if (NILP (handler))
{
- if (!NILP (current_buffer->file_truename))
- unlock_file (current_buffer->file_truename);
+ if (!NILP (BVAR (current_buffer, file_truename)))
+ unlock_file (BVAR (current_buffer, file_truename));
unlock_file (filename);
}
#endif /* CLASH_DETECTION */
visit);
if (! NILP (insval))
{
- CHECK_NUMBER (insval);
+ if (! RANGED_INTEGERP (0, insval, ZV - PT))
+ wrong_type_argument (intern ("inserted-chars"), insval);
inserted = XFASTINT (insval);
}
}
if (inserted > 0)
{
/* Don't run point motion or modification hooks when decoding. */
- int count = SPECPDL_INDEX ();
- EMACS_INT old_inserted = inserted;
+ ptrdiff_t count1 = SPECPDL_INDEX ();
+ ptrdiff_t old_inserted = inserted;
specbind (Qinhibit_point_motion_hooks, Qt);
specbind (Qinhibit_modification_hooks, Qt);
/* Save old undo list and don't record undo for decoding. */
- old_undo = current_buffer->undo_list;
- current_buffer->undo_list = Qt;
+ old_undo = BVAR (current_buffer, undo_list);
+ BVAR (current_buffer, undo_list) = Qt;
if (NILP (replace))
{
insval = call3 (Qformat_decode,
Qnil, make_number (inserted), visit);
- CHECK_NUMBER (insval);
+ if (! RANGED_INTEGERP (0, insval, ZV - PT))
+ wrong_type_argument (intern ("inserted-chars"), insval);
inserted = XFASTINT (insval);
}
else
Hence we temporarily save `point' and `inserted' here and
restore `point' iff format-decode did not insert or delete
any text. Otherwise we leave `point' at point-min. */
- EMACS_INT opoint = PT;
- EMACS_INT opoint_byte = PT_BYTE;
- EMACS_INT oinserted = ZV - BEGV;
- int ochars_modiff = CHARS_MODIFF;
+ ptrdiff_t opoint = PT;
+ ptrdiff_t opoint_byte = PT_BYTE;
+ ptrdiff_t oinserted = ZV - BEGV;
+ EMACS_INT ochars_modiff = CHARS_MODIFF;
TEMP_SET_PT_BOTH (BEGV, BEGV_BYTE);
insval = call3 (Qformat_decode,
Qnil, make_number (oinserted), visit);
- CHECK_NUMBER (insval);
+ if (! RANGED_INTEGERP (0, insval, ZV - PT))
+ wrong_type_argument (intern ("inserted-chars"), insval);
if (ochars_modiff == CHARS_MODIFF)
/* format_decode didn't modify buffer's characters => move
point back to position before inserted text and leave
insval = call1 (XCAR (p), make_number (inserted));
if (!NILP (insval))
{
- CHECK_NUMBER (insval);
+ if (! RANGED_INTEGERP (0, insval, ZV - PT))
+ wrong_type_argument (intern ("inserted-chars"), insval);
inserted = XFASTINT (insval);
}
}
{
/* For the rationale of this see the comment on
format-decode above. */
- EMACS_INT opoint = PT;
- EMACS_INT opoint_byte = PT_BYTE;
- EMACS_INT oinserted = ZV - BEGV;
- int ochars_modiff = CHARS_MODIFF;
+ ptrdiff_t opoint = PT;
+ ptrdiff_t opoint_byte = PT_BYTE;
+ ptrdiff_t oinserted = ZV - BEGV;
+ EMACS_INT ochars_modiff = CHARS_MODIFF;
TEMP_SET_PT_BOTH (BEGV, BEGV_BYTE);
insval = call1 (XCAR (p), make_number (oinserted));
if (!NILP (insval))
{
- CHECK_NUMBER (insval);
+ if (! RANGED_INTEGERP (0, insval, ZV - PT))
+ wrong_type_argument (intern ("inserted-chars"), insval);
if (ochars_modiff == CHARS_MODIFF)
/* after_insert_file_functions didn't modify
buffer's characters => move point back to
if (NILP (visit))
{
- current_buffer->undo_list = old_undo;
+ BVAR (current_buffer, undo_list) = old_undo;
if (CONSP (old_undo) && inserted != old_inserted)
{
/* Adjust the last undo record for the size change during
else
/* If undo_list was Qt before, keep it that way.
Otherwise start with an empty undo_list. */
- current_buffer->undo_list = EQ (old_undo, Qt) ? Qt : Qnil;
+ BVAR (current_buffer, undo_list) = EQ (old_undo, Qt) ? Qt : Qnil;
- unbind_to (count, Qnil);
+ unbind_to (count1, Qnil);
}
/* Call after-change hooks for the inserted text, aside from the case
&& current_buffer->modtime == -1)
{
/* If visiting nonexistent file, return nil. */
+ errno = save_errno;
report_file_error ("Opening input file", Fcons (orig_filename, Qnil));
}
Lisp_Object eol_parent = Qnil;
if (auto_saving
- && NILP (Fstring_equal (current_buffer->filename,
- current_buffer->auto_save_file_name)))
+ && NILP (Fstring_equal (BVAR (current_buffer, filename),
+ BVAR (current_buffer, auto_save_file_name))))
{
val = Qutf_8_emacs;
eol_parent = Qunix;
int using_default_coding = 0;
int force_raw_text = 0;
- val = current_buffer->buffer_file_coding_system;
+ val = BVAR (current_buffer, buffer_file_coding_system);
if (NILP (val)
|| NILP (Flocal_variable_p (Qbuffer_file_coding_system, Qnil)))
{
val = Qnil;
- if (NILP (current_buffer->enable_multibyte_characters))
+ if (NILP (BVAR (current_buffer, enable_multibyte_characters)))
force_raw_text = 1;
}
{
/* If we still have not decided a coding system, use the
default value of buffer-file-coding-system. */
- val = current_buffer->buffer_file_coding_system;
+ val = BVAR (current_buffer, buffer_file_coding_system);
using_default_coding = 1;
}
format, we use that of
`default-buffer-file-coding-system'. */
if (! using_default_coding
- && ! NILP (buffer_defaults.buffer_file_coding_system))
+ && ! NILP (BVAR (&buffer_defaults, buffer_file_coding_system)))
val = (coding_inherit_eol_type
- (val, buffer_defaults.buffer_file_coding_system));
+ (val, BVAR (&buffer_defaults, buffer_file_coding_system)));
/* If we decide not to encode text, use `raw-text' or one of its
subsidiaries. */
val = coding_inherit_eol_type (val, eol_parent);
setup_coding_system (val, coding);
- if (!STRINGP (start) && !NILP (current_buffer->selective_display))
+ if (!STRINGP (start) && !NILP (BVAR (current_buffer, selective_display)))
coding->mode |= CODING_MODE_SELECTIVE_DISPLAY;
return val;
}
register int desc;
int failure;
int save_errno = 0;
- const unsigned char *fn;
+ const char *fn;
struct stat st;
- int count = SPECPDL_INDEX ();
+ ptrdiff_t count = SPECPDL_INDEX ();
int count1;
Lisp_Object handler;
Lisp_Object visit_file;
int quietly = !NILP (visit);
struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5;
struct buffer *given_buffer;
-#ifdef DOS_NT
- int buffer_file_type = O_BINARY;
-#endif /* DOS_NT */
struct coding_system coding;
if (current_buffer->base_buffer && visiting)
if (visiting)
{
SAVE_MODIFF = MODIFF;
- XSETFASTINT (current_buffer->save_length, Z - BEG);
- current_buffer->filename = visit_file;
+ XSETFASTINT (BVAR (current_buffer, save_length), Z - BEG);
+ BVAR (current_buffer, filename) = visit_file;
}
UNGCPRO;
return val;
encoded_filename = ENCODE_FILE (filename);
- fn = SDATA (encoded_filename);
+ fn = SSDATA (encoded_filename);
desc = -1;
if (!NILP (append))
#ifdef DOS_NT
- desc = emacs_open (fn, O_WRONLY | buffer_file_type, 0);
+ desc = emacs_open (fn, O_WRONLY | O_BINARY, 0);
#else /* not DOS_NT */
desc = emacs_open (fn, O_WRONLY, 0);
#endif /* not DOS_NT */
if (desc < 0 && (NILP (append) || errno == ENOENT))
#ifdef DOS_NT
desc = emacs_open (fn,
- O_WRONLY | O_CREAT | buffer_file_type
+ O_WRONLY | O_CREAT | O_BINARY
| (EQ (mustbenew, Qexcl) ? O_EXCL : O_TRUNC),
S_IREAD | S_IWRITE);
#else /* not DOS_NT */
if (!NILP (append) && !NILP (Ffile_regular_p (filename)))
{
- long ret;
+ off_t ret;
if (NUMBERP (append))
- ret = lseek (desc, XINT (append), 1);
+ ret = emacs_lseek (desc, XINT (append), SEEK_CUR);
else
- ret = lseek (desc, 0, 2);
+ ret = lseek (desc, 0, SEEK_END);
if (ret < 0)
{
#ifdef CLASH_DETECTION
+ save_errno = errno;
if (!auto_saving) unlock_file (lockname);
+ errno = save_errno;
#endif /* CLASH_DETECTION */
UNGCPRO;
report_file_error ("Lseek error", Fcons (filename, Qnil));
if (visiting)
{
SAVE_MODIFF = MODIFF;
- XSETFASTINT (current_buffer->save_length, Z - BEG);
- current_buffer->filename = visit_file;
+ XSETFASTINT (BVAR (current_buffer, save_length), Z - BEG);
+ BVAR (current_buffer, filename) = visit_file;
update_mode_lines++;
}
else if (quietly)
{
if (auto_saving
- && ! NILP (Fstring_equal (current_buffer->filename,
- current_buffer->auto_save_file_name)))
+ && ! NILP (Fstring_equal (BVAR (current_buffer, filename),
+ BVAR (current_buffer, auto_save_file_name))))
SAVE_MODIFF = MODIFF;
return Qnil;
}
/* Now do the same for annotation functions implied by the file-format */
- if (auto_saving && (!EQ (current_buffer->auto_save_file_format, Qt)))
- p = current_buffer->auto_save_file_format;
+ if (auto_saving && (!EQ (BVAR (current_buffer, auto_save_file_format), Qt)))
+ p = BVAR (current_buffer, auto_save_file_format);
else
- p = current_buffer->file_format;
+ p = BVAR (current_buffer, file_format);
for (i = 0; CONSP (p); p = XCDR (p), ++i)
{
struct buffer *given_buffer = current_buffer;
The return value is negative in case of system call failure. */
static int
-a_write (int desc, Lisp_Object string, int pos, register int nchars, Lisp_Object *annot, struct coding_system *coding)
+a_write (int desc, Lisp_Object string, ptrdiff_t pos,
+ register ptrdiff_t nchars, Lisp_Object *annot,
+ struct coding_system *coding)
{
Lisp_Object tem;
- int nextpos;
- int lastpos = pos + nchars;
+ ptrdiff_t nextpos;
+ ptrdiff_t lastpos = pos + nchars;
while (NILP (*annot) || CONSP (*annot))
{
are indexes to the string STRING. */
static int
-e_write (int desc, Lisp_Object string, int start, int end, struct coding_system *coding)
+e_write (int desc, Lisp_Object string, ptrdiff_t start, ptrdiff_t end,
+ struct coding_system *coding)
{
if (STRINGP (string))
{
}
else
{
- int start_byte = CHAR_TO_BYTE (start);
- int end_byte = CHAR_TO_BYTE (end);
+ ptrdiff_t start_byte = CHAR_TO_BYTE (start);
+ ptrdiff_t end_byte = CHAR_TO_BYTE (end);
coding->src_multibyte = (end - start) < (end_byte - start_byte);
if (CODING_REQUIRE_ENCODING (coding))
coding->produced -=
emacs_write (desc,
STRINGP (coding->dst_object)
- ? SDATA (coding->dst_object)
- : BYTE_POS_ADDR (coding->dst_pos_byte),
+ ? SSDATA (coding->dst_object)
+ : (char *) BYTE_POS_ADDR (coding->dst_pos_byte),
coding->produced);
if (coding->produced)
}
\f
DEFUN ("verify-visited-file-modtime", Fverify_visited_file_modtime,
- Sverify_visited_file_modtime, 1, 1, 0,
+ Sverify_visited_file_modtime, 0, 1, 0,
doc: /* Return t if last mod time of BUF's visited file matches what BUF records.
This means that the file has not been changed since it was visited or saved.
+If BUF is omitted or nil, it defaults to the current buffer.
See Info node `(elisp)Modification Time' for more details. */)
(Lisp_Object buf)
{
Lisp_Object handler;
Lisp_Object filename;
- CHECK_BUFFER (buf);
- b = XBUFFER (buf);
+ if (NILP (buf))
+ b = current_buffer;
+ else
+ {
+ CHECK_BUFFER (buf);
+ b = XBUFFER (buf);
+ }
- if (!STRINGP (b->filename)) return Qt;
+ if (!STRINGP (BVAR (b, filename))) return Qt;
if (b->modtime == 0) return Qt;
/* If the file name has special constructs in it,
call the corresponding file handler. */
- handler = Ffind_file_name_handler (b->filename,
+ handler = Ffind_file_name_handler (BVAR (b, filename),
Qverify_visited_file_modtime);
if (!NILP (handler))
return call2 (handler, Qverify_visited_file_modtime, buf);
- filename = ENCODE_FILE (b->filename);
+ filename = ENCODE_FILE (BVAR (b, filename));
- if (stat (SDATA (filename), &st) < 0)
+ if (stat (SSDATA (filename), &st) < 0)
{
/* If the file doesn't exist now and didn't exist before,
we say that it isn't modified, provided the error is a tame one. */
if ((st.st_mtime == b->modtime
/* If both are positive, accept them if they are off by one second. */
|| (st.st_mtime > 0 && b->modtime > 0
- && (st.st_mtime == b->modtime + 1
+ && (st.st_mtime - 1 == b->modtime
|| st.st_mtime == b->modtime - 1)))
&& (st.st_size == b->modtime_size
|| b->modtime_size < 0))
DEFUN ("visited-file-modtime", Fvisited_file_modtime,
Svisited_file_modtime, 0, 0, 0,
doc: /* Return the current buffer's recorded visited file modification time.
-The value is a list of the form (HIGH LOW), like the time values
-that `file-attributes' returns. If the current buffer has no recorded
-file modification time, this function returns 0.
+The value is a list of the form (HIGH LOW), like the time values that
+`file-attributes' returns. If the current buffer has no recorded file
+modification time, this function returns 0. If the visited file
+doesn't exist, HIGH will be -1.
See Info node `(elisp)Modification Time' for more details. */)
(void)
{
if (! current_buffer->modtime)
return make_number (0);
- return make_time ((time_t) current_buffer->modtime);
+ return make_time (current_buffer->modtime);
}
DEFUN ("set-visited-file-modtime", Fset_visited_file_modtime,
{
if (!NILP (time_list))
{
- current_buffer->modtime = cons_to_long (time_list);
+ CONS_TO_INTEGER (time_list, time_t, current_buffer->modtime);
current_buffer->modtime_size = -1;
}
else
struct stat st;
Lisp_Object handler;
- filename = Fexpand_file_name (current_buffer->filename, Qnil);
+ filename = Fexpand_file_name (BVAR (current_buffer, filename), Qnil);
/* If the file name has special constructs in it,
call the corresponding file handler. */
filename = ENCODE_FILE (filename);
- if (stat (SDATA (filename), &st) >= 0)
+ if (stat (SSDATA (filename), &st) >= 0)
{
current_buffer->modtime = st.st_mtime;
current_buffer->modtime_size = st.st_size;
return Qnil;
}
\f
-Lisp_Object
-auto_save_error (Lisp_Object error)
+static Lisp_Object
+auto_save_error (Lisp_Object error_val)
{
Lisp_Object args[3], msg;
int i, nbytes;
ring_bell (XFRAME (selected_frame));
args[0] = build_string ("Auto-saving %s: %s");
- args[1] = current_buffer->name;
- args[2] = Ferror_message_string (error);
+ args[1] = BVAR (current_buffer, name);
+ args[2] = Ferror_message_string (error_val);
msg = Fformat (3, args);
GCPRO1 (msg);
nbytes = SBYTES (msg);
return Qnil;
}
-Lisp_Object
+static Lisp_Object
auto_save_1 (void)
{
struct stat st;
auto_save_mode_bits = 0666;
/* Get visited file's mode to become the auto save file's mode. */
- if (! NILP (current_buffer->filename))
+ if (! NILP (BVAR (current_buffer, filename)))
{
- if (stat (SDATA (current_buffer->filename), &st) >= 0)
+ if (stat (SSDATA (BVAR (current_buffer, filename)), &st) >= 0)
/* But make sure we can overwrite it later! */
- auto_save_mode_bits = st.st_mode | 0600;
- else if ((modes = Ffile_modes (current_buffer->filename),
+ auto_save_mode_bits = (st.st_mode | 0600) & 0777;
+ else if ((modes = Ffile_modes (BVAR (current_buffer, filename)),
INTEGERP (modes)))
/* Remote files don't cooperate with stat. */
- auto_save_mode_bits = XINT (modes) | 0600;
+ auto_save_mode_bits = (XINT (modes) | 0600) & 0777;
}
return
- Fwrite_region (Qnil, Qnil, current_buffer->auto_save_file_name, Qnil,
+ Fwrite_region (Qnil, Qnil, BVAR (current_buffer, auto_save_file_name), Qnil,
NILP (Vauto_save_visited_file_name) ? Qlambda : Qt,
Qnil, Qnil);
}
static Lisp_Object
do_auto_save_unwind (Lisp_Object arg) /* used as unwind-protect function */
-
+
{
FILE *stream = (FILE *) XSAVE_VALUE (arg)->pointer;
auto_saving = 0;
static Lisp_Object
do_auto_save_unwind_1 (Lisp_Object value) /* used as unwind-protect function */
-
+
{
minibuffer_auto_raise = XINT (value);
return Qnil;
(Lisp_Object no_message, Lisp_Object current_only)
{
struct buffer *old = current_buffer, *b;
- Lisp_Object tail, buf;
+ Lisp_Object tail, buf, hook;
int auto_saved = 0;
int do_handled_files;
Lisp_Object oquit;
FILE *stream = NULL;
- int count = SPECPDL_INDEX ();
+ ptrdiff_t count = SPECPDL_INDEX ();
int orig_minibuffer_auto_raise = minibuffer_auto_raise;
int old_message_p = 0;
struct gcpro gcpro1, gcpro2;
/* No GCPRO needed, because (when it matters) all Lisp_Object variables
point to non-strings reached from Vbuffer_alist. */
- if (!NILP (Vrun_hooks))
- call1 (Vrun_hooks, intern ("auto-save-hook"));
+ hook = intern ("auto-save-hook");
+ Frun_hooks (1, &hook);
if (STRINGP (Vauto_save_list_file_name))
{
UNGCPRO;
}
- stream = fopen (SDATA (listfile), "w");
+ stream = fopen (SSDATA (listfile), "w");
}
record_unwind_protect (do_auto_save_unwind,
/* Record all the buffers that have auto save mode
in the special file that lists them. For each of these buffers,
Record visited name (if any) and auto save name. */
- if (STRINGP (b->auto_save_file_name)
+ if (STRINGP (BVAR (b, auto_save_file_name))
&& stream != NULL && do_handled_files == 0)
{
BLOCK_INPUT;
- if (!NILP (b->filename))
+ if (!NILP (BVAR (b, filename)))
{
- fwrite (SDATA (b->filename), 1,
- SBYTES (b->filename), stream);
+ fwrite (SDATA (BVAR (b, filename)), 1,
+ SBYTES (BVAR (b, filename)), stream);
}
putc ('\n', stream);
- fwrite (SDATA (b->auto_save_file_name), 1,
- SBYTES (b->auto_save_file_name), stream);
+ fwrite (SDATA (BVAR (b, auto_save_file_name)), 1,
+ SBYTES (BVAR (b, auto_save_file_name)), stream);
putc ('\n', stream);
UNBLOCK_INPUT;
}
/* Check for auto save enabled
and file changed since last auto save
and file changed since last real save. */
- if (STRINGP (b->auto_save_file_name)
+ if (STRINGP (BVAR (b, auto_save_file_name))
&& BUF_SAVE_MODIFF (b) < BUF_MODIFF (b)
&& BUF_AUTOSAVE_MODIFF (b) < BUF_MODIFF (b)
/* -1 means we've turned off autosaving for a while--see below. */
- && XINT (b->save_length) >= 0
+ && XINT (BVAR (b, save_length)) >= 0
&& (do_handled_files
- || NILP (Ffind_file_name_handler (b->auto_save_file_name,
+ || NILP (Ffind_file_name_handler (BVAR (b, auto_save_file_name),
Qwrite_region))))
{
EMACS_TIME before_time, after_time;
EMACS_GET_TIME (before_time);
/* If we had a failure, don't try again for 20 minutes. */
- if (b->auto_save_failure_time >= 0
+ if (b->auto_save_failure_time > 0
&& EMACS_SECS (before_time) - b->auto_save_failure_time < 1200)
continue;
set_buffer_internal (b);
if (NILP (Vauto_save_include_big_deletions)
- && (XFASTINT (b->save_length) * 10
+ && (XFASTINT (BVAR (b, save_length)) * 10
> (BUF_Z (b) - BUF_BEG (b)) * 13)
/* A short file is likely to change a large fraction;
spare the user annoying messages. */
- && XFASTINT (b->save_length) > 5000
+ && XFASTINT (BVAR (b, save_length)) > 5000
/* These messages are frequent and annoying for `*mail*'. */
- && !EQ (b->filename, Qnil)
+ && !EQ (BVAR (b, filename), Qnil)
&& NILP (no_message))
{
/* It has shrunk too much; turn off auto-saving here. */
minibuffer_auto_raise = orig_minibuffer_auto_raise;
message_with_string ("Buffer %s has shrunk a lot; auto save disabled in that buffer until next real save",
- b->name, 1);
+ BVAR (b, name), 1);
minibuffer_auto_raise = 0;
/* Turn off auto-saving until there's a real save,
and prevent any more warnings. */
- XSETINT (b->save_length, -1);
+ XSETINT (BVAR (b, save_length), -1);
Fsleep_for (make_number (1), Qnil);
continue;
}
internal_condition_case (auto_save_1, Qt, auto_save_error);
auto_saved++;
BUF_AUTOSAVE_MODIFF (b) = BUF_MODIFF (b);
- XSETFASTINT (current_buffer->save_length, Z - BEG);
+ XSETFASTINT (BVAR (current_buffer, save_length), Z - BEG);
set_buffer_internal (old);
EMACS_GET_TIME (after_time);
/* FIXME: This should not be called in indirect buffers, since
they're not autosaved. */
BUF_AUTOSAVE_MODIFF (current_buffer) = MODIFF;
- XSETFASTINT (current_buffer->save_length, Z - BEG);
- current_buffer->auto_save_failure_time = -1;
+ XSETFASTINT (BVAR (current_buffer, save_length), Z - BEG);
+ current_buffer->auto_save_failure_time = 0;
return Qnil;
}
doc: /* Clear any record of a recent auto-save failure in the current buffer. */)
(void)
{
- current_buffer->auto_save_failure_time = -1;
+ current_buffer->auto_save_failure_time = 0;
return Qnil;
}
Lisp_Object
Fread_file_name (Lisp_Object prompt, Lisp_Object dir, Lisp_Object default_filename, Lisp_Object mustmatch, Lisp_Object initial, Lisp_Object predicate)
{
- struct gcpro gcpro1, gcpro2;
+ struct gcpro gcpro1;
Lisp_Object args[7];
GCPRO1 (default_filename);
void
syms_of_fileio (void)
{
- Qoperations = intern_c_string ("operations");
- Qexpand_file_name = intern_c_string ("expand-file-name");
- Qsubstitute_in_file_name = intern_c_string ("substitute-in-file-name");
- Qdirectory_file_name = intern_c_string ("directory-file-name");
- Qfile_name_directory = intern_c_string ("file-name-directory");
- Qfile_name_nondirectory = intern_c_string ("file-name-nondirectory");
- Qunhandled_file_name_directory = intern_c_string ("unhandled-file-name-directory");
- Qfile_name_as_directory = intern_c_string ("file-name-as-directory");
- Qcopy_file = intern_c_string ("copy-file");
- Qmake_directory_internal = intern_c_string ("make-directory-internal");
- Qmake_directory = intern_c_string ("make-directory");
- Qdelete_directory_internal = intern_c_string ("delete-directory-internal");
- Qdelete_file = intern_c_string ("delete-file");
- Qrename_file = intern_c_string ("rename-file");
- Qadd_name_to_file = intern_c_string ("add-name-to-file");
- Qmake_symbolic_link = intern_c_string ("make-symbolic-link");
- Qfile_exists_p = intern_c_string ("file-exists-p");
- Qfile_executable_p = intern_c_string ("file-executable-p");
- Qfile_readable_p = intern_c_string ("file-readable-p");
- Qfile_writable_p = intern_c_string ("file-writable-p");
- Qfile_symlink_p = intern_c_string ("file-symlink-p");
- Qaccess_file = intern_c_string ("access-file");
- Qfile_directory_p = intern_c_string ("file-directory-p");
- Qfile_regular_p = intern_c_string ("file-regular-p");
- Qfile_accessible_directory_p = intern_c_string ("file-accessible-directory-p");
- Qfile_modes = intern_c_string ("file-modes");
- Qset_file_modes = intern_c_string ("set-file-modes");
- Qset_file_times = intern_c_string ("set-file-times");
- Qfile_selinux_context = intern_c_string("file-selinux-context");
- Qset_file_selinux_context = intern_c_string("set-file-selinux-context");
- Qfile_newer_than_file_p = intern_c_string ("file-newer-than-file-p");
- Qinsert_file_contents = intern_c_string ("insert-file-contents");
- Qwrite_region = intern_c_string ("write-region");
- Qverify_visited_file_modtime = intern_c_string ("verify-visited-file-modtime");
- Qset_visited_file_modtime = intern_c_string ("set-visited-file-modtime");
- Qauto_save_coding = intern_c_string ("auto-save-coding");
-
- staticpro (&Qoperations);
- staticpro (&Qexpand_file_name);
- staticpro (&Qsubstitute_in_file_name);
- staticpro (&Qdirectory_file_name);
- staticpro (&Qfile_name_directory);
- staticpro (&Qfile_name_nondirectory);
- staticpro (&Qunhandled_file_name_directory);
- staticpro (&Qfile_name_as_directory);
- staticpro (&Qcopy_file);
- staticpro (&Qmake_directory_internal);
- staticpro (&Qmake_directory);
- staticpro (&Qdelete_directory_internal);
- staticpro (&Qdelete_file);
- staticpro (&Qrename_file);
- staticpro (&Qadd_name_to_file);
- staticpro (&Qmake_symbolic_link);
- staticpro (&Qfile_exists_p);
- staticpro (&Qfile_executable_p);
- staticpro (&Qfile_readable_p);
- staticpro (&Qfile_writable_p);
- staticpro (&Qaccess_file);
- staticpro (&Qfile_symlink_p);
- staticpro (&Qfile_directory_p);
- staticpro (&Qfile_regular_p);
- staticpro (&Qfile_accessible_directory_p);
- staticpro (&Qfile_modes);
- staticpro (&Qset_file_modes);
- staticpro (&Qset_file_times);
- staticpro (&Qfile_selinux_context);
- staticpro (&Qset_file_selinux_context);
- staticpro (&Qfile_newer_than_file_p);
- staticpro (&Qinsert_file_contents);
- staticpro (&Qwrite_region);
- staticpro (&Qverify_visited_file_modtime);
- staticpro (&Qset_visited_file_modtime);
- staticpro (&Qauto_save_coding);
-
- Qfile_name_history = intern_c_string ("file-name-history");
+ DEFSYM (Qoperations, "operations");
+ DEFSYM (Qexpand_file_name, "expand-file-name");
+ DEFSYM (Qsubstitute_in_file_name, "substitute-in-file-name");
+ DEFSYM (Qdirectory_file_name, "directory-file-name");
+ DEFSYM (Qfile_name_directory, "file-name-directory");
+ DEFSYM (Qfile_name_nondirectory, "file-name-nondirectory");
+ DEFSYM (Qunhandled_file_name_directory, "unhandled-file-name-directory");
+ DEFSYM (Qfile_name_as_directory, "file-name-as-directory");
+ DEFSYM (Qcopy_file, "copy-file");
+ DEFSYM (Qmake_directory_internal, "make-directory-internal");
+ DEFSYM (Qmake_directory, "make-directory");
+ DEFSYM (Qdelete_directory_internal, "delete-directory-internal");
+ DEFSYM (Qdelete_file, "delete-file");
+ DEFSYM (Qrename_file, "rename-file");
+ DEFSYM (Qadd_name_to_file, "add-name-to-file");
+ DEFSYM (Qmake_symbolic_link, "make-symbolic-link");
+ DEFSYM (Qfile_exists_p, "file-exists-p");
+ DEFSYM (Qfile_executable_p, "file-executable-p");
+ DEFSYM (Qfile_readable_p, "file-readable-p");
+ DEFSYM (Qfile_writable_p, "file-writable-p");
+ DEFSYM (Qfile_symlink_p, "file-symlink-p");
+ DEFSYM (Qaccess_file, "access-file");
+ DEFSYM (Qfile_directory_p, "file-directory-p");
+ DEFSYM (Qfile_regular_p, "file-regular-p");
+ DEFSYM (Qfile_accessible_directory_p, "file-accessible-directory-p");
+ DEFSYM (Qfile_modes, "file-modes");
+ DEFSYM (Qset_file_modes, "set-file-modes");
+ DEFSYM (Qset_file_times, "set-file-times");
+ DEFSYM (Qfile_selinux_context, "file-selinux-context");
+ DEFSYM (Qset_file_selinux_context, "set-file-selinux-context");
+ DEFSYM (Qfile_newer_than_file_p, "file-newer-than-file-p");
+ DEFSYM (Qinsert_file_contents, "insert-file-contents");
+ DEFSYM (Qwrite_region, "write-region");
+ DEFSYM (Qverify_visited_file_modtime, "verify-visited-file-modtime");
+ DEFSYM (Qset_visited_file_modtime, "set-visited-file-modtime");
+ DEFSYM (Qauto_save_coding, "auto-save-coding");
+
+ DEFSYM (Qfile_name_history, "file-name-history");
Fset (Qfile_name_history, Qnil);
- staticpro (&Qfile_name_history);
- Qfile_error = intern_c_string ("file-error");
- staticpro (&Qfile_error);
- Qfile_already_exists = intern_c_string ("file-already-exists");
- staticpro (&Qfile_already_exists);
- Qfile_date_error = intern_c_string ("file-date-error");
- staticpro (&Qfile_date_error);
- Qexcl = intern_c_string ("excl");
- staticpro (&Qexcl);
+ DEFSYM (Qfile_error, "file-error");
+ DEFSYM (Qfile_already_exists, "file-already-exists");
+ DEFSYM (Qfile_date_error, "file-date-error");
+ DEFSYM (Qexcl, "excl");
-#ifdef DOS_NT
- Qfind_buffer_file_type = intern_c_string ("find-buffer-file-type");
- staticpro (&Qfind_buffer_file_type);
-#endif /* DOS_NT */
-
- DEFVAR_LISP ("file-name-coding-system", &Vfile_name_coding_system,
+ DEFVAR_LISP ("file-name-coding-system", Vfile_name_coding_system,
doc: /* *Coding system for encoding file names.
If it is nil, `default-file-name-coding-system' (which see) is used. */);
Vfile_name_coding_system = Qnil;
DEFVAR_LISP ("default-file-name-coding-system",
- &Vdefault_file_name_coding_system,
+ Vdefault_file_name_coding_system,
doc: /* Default coding system for encoding file names.
This variable is used only when `file-name-coding-system' is nil.
of file names regardless of the current language environment. */);
Vdefault_file_name_coding_system = Qnil;
- Qformat_decode = intern_c_string ("format-decode");
- staticpro (&Qformat_decode);
- Qformat_annotate_function = intern_c_string ("format-annotate-function");
- staticpro (&Qformat_annotate_function);
- Qafter_insert_file_set_coding = intern_c_string ("after-insert-file-set-coding");
- staticpro (&Qafter_insert_file_set_coding);
-
- Qcar_less_than_car = intern_c_string ("car-less-than-car");
- staticpro (&Qcar_less_than_car);
+ DEFSYM (Qformat_decode, "format-decode");
+ DEFSYM (Qformat_annotate_function, "format-annotate-function");
+ DEFSYM (Qafter_insert_file_set_coding, "after-insert-file-set-coding");
+ DEFSYM (Qcar_less_than_car, "car-less-than-car");
Fput (Qfile_error, Qerror_conditions,
Fpurecopy (list2 (Qfile_error, Qerror)));
Fput (Qfile_date_error, Qerror_message,
make_pure_c_string ("Cannot set file date"));
- DEFVAR_LISP ("file-name-handler-alist", &Vfile_name_handler_alist,
+ DEFVAR_LISP ("file-name-handler-alist", Vfile_name_handler_alist,
doc: /* *Alist of elements (REGEXP . HANDLER) for file names handled specially.
If a file name matches REGEXP, then all I/O on that file is done by calling
HANDLER.
Vfile_name_handler_alist = Qnil;
DEFVAR_LISP ("set-auto-coding-function",
- &Vset_auto_coding_function,
+ Vset_auto_coding_function,
doc: /* If non-nil, a function to call to decide a coding system of file.
Two arguments are passed to this function: the file name
and the length of a file contents following the point.
or local variable spec of the tailing lines with `coding:' tag. */);
Vset_auto_coding_function = Qnil;
- DEFVAR_LISP ("after-insert-file-functions", &Vafter_insert_file_functions,
+ DEFVAR_LISP ("after-insert-file-functions", Vafter_insert_file_functions,
doc: /* A list of functions to be called at the end of `insert-file-contents'.
Each is passed one argument, the number of characters inserted,
with point at the start of the inserted text. Each function
functions in `after-insert-file-functions' if appropriate. */);
Vafter_insert_file_functions = Qnil;
- DEFVAR_LISP ("write-region-annotate-functions", &Vwrite_region_annotate_functions,
+ DEFVAR_LISP ("write-region-annotate-functions", Vwrite_region_annotate_functions,
doc: /* A list of functions to be called at the start of `write-region'.
Each is passed two arguments, START and END as for `write-region'.
These are usually two numbers but not always; see the documentation
current when building the annotations (i.e., at least once), with that
buffer current. */);
Vwrite_region_annotate_functions = Qnil;
- staticpro (&Qwrite_region_annotate_functions);
- Qwrite_region_annotate_functions
- = intern_c_string ("write-region-annotate-functions");
+ DEFSYM (Qwrite_region_annotate_functions, "write-region-annotate-functions");
DEFVAR_LISP ("write-region-post-annotation-function",
- &Vwrite_region_post_annotation_function,
+ Vwrite_region_post_annotation_function,
doc: /* Function to call after `write-region' completes.
The function is called with no arguments. If one or more of the
annotation functions in `write-region-annotate-functions' changed the
staticpro (&Vwrite_region_annotation_buffers);
DEFVAR_LISP ("write-region-annotations-so-far",
- &Vwrite_region_annotations_so_far,
+ Vwrite_region_annotations_so_far,
doc: /* When an annotation function is called, this holds the previous annotations.
These are the annotations made by other annotation functions
that were already called. See also `write-region-annotate-functions'. */);
Vwrite_region_annotations_so_far = Qnil;
- DEFVAR_LISP ("inhibit-file-name-handlers", &Vinhibit_file_name_handlers,
+ DEFVAR_LISP ("inhibit-file-name-handlers", Vinhibit_file_name_handlers,
doc: /* A list of file name handlers that temporarily should not be used.
This applies only to the operation `inhibit-file-name-operation'. */);
Vinhibit_file_name_handlers = Qnil;
- DEFVAR_LISP ("inhibit-file-name-operation", &Vinhibit_file_name_operation,
+ DEFVAR_LISP ("inhibit-file-name-operation", Vinhibit_file_name_operation,
doc: /* The operation for which `inhibit-file-name-handlers' is applicable. */);
Vinhibit_file_name_operation = Qnil;
- DEFVAR_LISP ("auto-save-list-file-name", &Vauto_save_list_file_name,
+ DEFVAR_LISP ("auto-save-list-file-name", Vauto_save_list_file_name,
doc: /* File name in which we write a list of all auto save file names.
This variable is initialized automatically from `auto-save-list-file-prefix'
shortly after Emacs reads your `.emacs' file, if you have not yet given it
a non-nil value. */);
Vauto_save_list_file_name = Qnil;
- DEFVAR_LISP ("auto-save-visited-file-name", &Vauto_save_visited_file_name,
+ DEFVAR_LISP ("auto-save-visited-file-name", Vauto_save_visited_file_name,
doc: /* Non-nil says auto-save a buffer in the file it is visiting, when practical.
Normally auto-save files are written under other names. */);
Vauto_save_visited_file_name = Qnil;
- DEFVAR_LISP ("auto-save-include-big-deletions", &Vauto_save_include_big_deletions,
+ DEFVAR_LISP ("auto-save-include-big-deletions", Vauto_save_include_big_deletions,
doc: /* If non-nil, auto-save even if a large part of the text is deleted.
If nil, deleting a substantial portion of the text disables auto-save
in the buffer; this is the default behavior, because the auto-save
Vauto_save_include_big_deletions = Qnil;
#ifdef HAVE_FSYNC
- DEFVAR_BOOL ("write-region-inhibit-fsync", &write_region_inhibit_fsync,
+ DEFVAR_BOOL ("write-region-inhibit-fsync", write_region_inhibit_fsync,
doc: /* *Non-nil means don't call fsync in `write-region'.
This variable affects calls to `write-region' as well as save commands.
A non-nil value may result in data loss! */);
write_region_inhibit_fsync = 0;
#endif
- DEFVAR_BOOL ("delete-by-moving-to-trash", &delete_by_moving_to_trash,
+ DEFVAR_BOOL ("delete-by-moving-to-trash", delete_by_moving_to_trash,
doc: /* Specifies whether to use the system's trash can.
When non-nil, certain file deletion commands use the function
`move-file-to-trash' instead of deleting files outright.
`delete-directory' and the Dired deletion commands. */);
delete_by_moving_to_trash = 0;
Qdelete_by_moving_to_trash = intern_c_string ("delete-by-moving-to-trash");
- Qmove_file_to_trash = intern_c_string ("move-file-to-trash");
- staticpro (&Qmove_file_to_trash);
- Qcopy_directory = intern_c_string ("copy-directory");
- staticpro (&Qcopy_directory);
- Qdelete_directory = intern_c_string ("delete-directory");
- staticpro (&Qdelete_directory);
+
+ DEFSYM (Qmove_file_to_trash, "move-file-to-trash");
+ DEFSYM (Qcopy_directory, "copy-directory");
+ DEFSYM (Qdelete_directory, "delete-directory");
defsubr (&Sfind_file_name_handler);
defsubr (&Sfile_name_directory);
defsubr (&Sunix_sync);
#endif
}
-
-/* arch-tag: 64ba3fd7-f844-4fb2-ba4b-427eb928786c
- (do not change this comment) */