#include <setjmp.h>
#include <unistd.h>
-#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>
#endif
#ifdef DOS_NT
/* On Windows, drive letters must be alphabetic - on DOS, the Netware
- redirector allows the six letters between 'Z' and 'a' as well. */
+ redirector allows the six letters between 'Z' and 'a' as well. */
#ifdef MSDOS
#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
+ filenames will sometimes compare unequal, 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;
+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;
+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;
+static Lisp_Object Qafter_insert_file_set_coding;
-Lisp_Object Qwrite_region_annotate_functions;
+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;
+static Lisp_Object Vwrite_region_annotation_buffers;
#ifdef HAVE_FSYNC
#endif
-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
#endif
-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, EMACS_INT, EMACS_INT,
Lisp_Object *, struct coding_system *);
-static int e_write (int, Lisp_Object, int, int, struct coding_system *);
+static int e_write (int, Lisp_Object, EMACS_INT, EMACS_INT,
+ struct coding_system *);
\f
void
int c;
str = SSDATA (errstring);
- c = STRING_CHAR (str);
- Faset (errstring, make_number (0), make_number (DOWNCASE (c)));
+ 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
if (CONSP (elt))
{
Lisp_Object string = XCAR (elt);
- int match_pos;
+ EMACS_INT 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);
while (p != beg && !IS_DIRECTORY_SEP (p[-1])
#ifdef DOS_NT
- /* only recognise drive specifier at the beginning */
+ /* only recognize drive specifier at the beginning */
&& !(p[-1] == ':'
/* handle the "/:d:foo" and "/:foo" cases correctly */
&& ((p == beg + 2 && !IS_DIRECTORY_SEP (*beg))
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])
#ifdef DOS_NT
- /* only recognise drive specifier at beginning */
+ /* only recognize drive specifier at beginning */
&& !(p[-1] == ':'
/* handle the "/:d:foo" case correctly */
&& (p == beg + 2 || (p == beg + 4 && IS_DIRECTORY_SEP (*beg))))
}
\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);
* 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);
{
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;
}
{
/* 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)
{
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[] = " :";
{
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
if (p)
/* Start over with the new string, so we check the file-name-handler
again. Important with filenames like "/home/foo//:/hello///there"
- which whould substitute to "/:/hello///there" rather than "/there". */
+ which would substitute to "/:/hello///there" rather than "/there". */
return Fsubstitute_in_file_name
(make_specified_string (p, -1, endp - p, multibyte));
}
/* 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);
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;
regardless of what access permissions it has. */
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;
+ EMACS_INT n;
char buf[16 * 1024];
struct stat st, out_st;
Lisp_Object handler;
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 (SSDATA (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 */
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));
if (errno == EXDEV)
{
int count;
-#ifdef S_IFLNK
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);
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);
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);
-#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. */
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) ? SSDATA (dir) : "")
? Qt : 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 (SSDATA (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. */
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 (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. */
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 (SSDATA (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);
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,
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
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;
}
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,
EMACS_INT inserted = 0;
int nochange = 0;
register EMACS_INT how_much;
+ off_t beg_offset, end_offset;
register EMACS_INT unprocessed;
int count = SPECPDL_INDEX ();
struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5;
Lisp_Object p;
EMACS_INT 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;
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 (SSDATA (filename), O_RDONLY, 0)) < 0)
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);
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);
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));
}
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;
/* 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. */
EMACS_INT bufpos;
unsigned char *decoded;
EMACS_INT temp;
+ EMACS_INT this = 0;
int this_count = SPECPDL_INDEX ();
- int multibyte = ! NILP (current_buffer->enable_multibyte_characters);
+ int multibyte = ! NILP (BVAR (current_buffer, enable_multibyte_characters));
Lisp_Object conversion_buffer;
+ struct gcpro gcpro1;
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) */
+ /* `try'' is reserved in some compilers (Microsoft C). */
EMACS_INT trytry = min (total - how_much,
READ_BUF_SIZE - unprocessed);
- EMACS_INT this;
/* 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));
}
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 ();
+ int 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 */
if (inserted > 0)
{
/* Don't run point motion or modification hooks when decoding. */
- int count = SPECPDL_INDEX ();
+ int count1 = SPECPDL_INDEX ();
EMACS_INT 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))
{
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 ();
int count1;
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, EMACS_INT pos,
+ register EMACS_INT nchars, Lisp_Object *annot,
+ struct coding_system *coding)
{
Lisp_Object tem;
- int nextpos;
- int lastpos = pos + nchars;
+ EMACS_INT nextpos;
+ EMACS_INT 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, EMACS_INT start, EMACS_INT end,
+ struct coding_system *coding)
{
if (STRINGP (string))
{
}
else
{
- int start_byte = CHAR_TO_BYTE (start);
- int end_byte = CHAR_TO_BYTE (end);
+ EMACS_INT start_byte = CHAR_TO_BYTE (start);
+ EMACS_INT end_byte = CHAR_TO_BYTE (end);
coding->src_multibyte = (end - start) < (end_byte - start_byte);
if (CODING_REQUIRE_ENCODING (coding))
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 (SSDATA (filename), &st) < 0)
{
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. */
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 (SSDATA (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);
}
(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;
/* 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))
{
/* 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);
-
-#ifdef DOS_NT
- Qfind_buffer_file_type = intern_c_string ("find-buffer-file-type");
- staticpro (&Qfind_buffer_file_type);
-#endif /* DOS_NT */
+ DEFSYM (Qfile_error, "file-error");
+ DEFSYM (Qfile_already_exists, "file-already-exists");
+ DEFSYM (Qfile_date_error, "file-date-error");
+ DEFSYM (Qexcl, "excl");
DEFVAR_LISP ("file-name-coding-system", Vfile_name_coding_system,
doc: /* *Coding system for encoding file names.
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)));
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,
`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);