Patch 7.0.130 (extra)
Problem: Win32: Trying to edit or write devices may cause Vim to get stuck.
Solution: Add the 'opendevice' option, default off. Disallow
reading/writing from/to devices when it's off.
Also detect more devices by the full name starting with "\\.\".
Files: runtime/doc/options.txt, src/fileio.c, src/option.c, src/option.h,
src/os_win32.c
*** ../vim-7.0.129/runtime/doc/options.txt Sun May 7 17:07:10 2006
--- runtime/doc/options.txt Tue Oct 10 17:34:48 2006
***************
*** 4792,4801 ****
completion with CTRL-X CTRL-O. |i_CTRL-X_CTRL-O|
See |complete-functions| for an explanation of how the function is
invoked and what it should return.
! This option is usually set by a filetype plugin.
|:filetype-plugin-on|
*'operatorfunc'* *'opfunc'*
'operatorfunc' 'opfunc' string (default: empty)
global
--- 4815,4836 ----
completion with CTRL-X CTRL-O. |i_CTRL-X_CTRL-O|
See |complete-functions| for an explanation of how the function is
invoked and what it should return.
! This option is usually set by a filetype plugin:
|:filetype-plugin-on|
+ *'opendevice* *'odev* *'noopendevice* *'noodev*
+ 'opendevice' 'odev' boolean (default off)
+ global
+ {not in Vi}
+ {only for MS-DOS, MS-Windows and OS/2}
+ Enable reading and writing from devices. This may get Vim stuck on a
+ device that can be opened but doesn't actually do the I/O. Therefore
+ it is off by default.
+ Note that on MS-Windows editing "aux.h", "lpt1.txt" and the like also
+ result in editing a device.
+
+
*'operatorfunc'* *'opfunc'*
'operatorfunc' 'opfunc' string (default: empty)
global
*** ../vim-7.0.129/src/fileio.c Thu Sep 14 11:07:08 2006
--- src/fileio.c Tue Oct 10 18:41:24 2006
***************
*** 419,424 ****
--- 419,438 ----
}
#endif
+ #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
+ /*
+ * MS-Windows allows opening a device, but we will probably get stuck
+ * trying to read it.
+ */
+ if (!p_odev && mch_nodetype(fname) == NODE_WRITABLE)
+ {
+ filemess(curbuf, fname, (char_u *)_("is a device (disabled with
'opendevice' option"), 0);
+ msg_end();
+ msg_scroll = msg_save;
+ return FAIL;
+ }
+ #endif
+
/* set default 'fileformat' */
if (set_options)
{
***************
*** 3163,3168 ****
--- 3177,3192 ----
}
if (c == NODE_WRITABLE)
{
+ # if defined(MSDOS) || defined(MSWIN) || defined(OS2)
+ /* MS-Windows allows opening a device, but we will probably get stuck
+ * trying to write to it. */
+ if (!p_odev)
+ {
+ errnum = (char_u *)"E796: ";
+ errmsg = (char_u *)_("writing to device disabled with 'opendevice'
option");
+ goto fail;
+ }
+ # endif
device = TRUE;
newfile = TRUE;
perm = -1;
*** ../vim-7.0.129/src/option.c Tue Sep 5 16:29:38 2006
--- src/option.c Tue Oct 10 17:16:00 2006
***************
*** 1810,1815 ****
--- 1810,1823 ----
{"open", NULL, P_BOOL|P_VI_DEF,
(char_u *)NULL, PV_NONE,
{(char_u *)FALSE, (char_u *)0L}},
+ {"opendevice", "odev", P_BOOL|P_VI_DEF,
+ #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
+ (char_u *)&p_odev, PV_NONE,
+ #else
+ (char_u *)NULL, PV_NONE,
+ #endif
+ {(char_u *)FALSE, (char_u *)FALSE}
+ },
{"operatorfunc", "opfunc", P_STRING|P_VI_DEF|P_SECURE,
(char_u *)&p_opfunc, PV_NONE,
{(char_u *)"", (char_u *)0L} },
*** ../vim-7.0.129/src/option.h Mon Apr 24 21:37:06 2006
--- src/option.h Tue Oct 10 17:17:09 2006
***************
*** 618,623 ****
--- 618,626 ----
#ifdef FEAT_MZSCHEME
EXTERN long p_mzq; /* 'mzquantum */
#endif
+ #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
+ EXTERN int p_odev; /* 'opendevice' */
+ #endif
EXTERN char_u *p_opfunc; /* 'operatorfunc' */
EXTERN char_u *p_para; /* 'paragraphs' */
EXTERN int p_paste; /* 'paste' */
*** ../vim-7.0.129/src/os_win32.c Sun Apr 23 00:24:31 2006
--- src/os_win32.c Tue Oct 10 17:08:23 2006
***************
*** 2702,2707 ****
--- 2702,2713 ----
HANDLE hFile;
int type;
+ /* We can't open a file with a name "\\.\con" or "\\.\prn" and trying to
+ * read from it later will cause Vim to hang. Thus return NODE_WRITABLE
+ * here. */
+ if (STRNCMP(name, "\\\\.\\", 4) == 0)
+ return NODE_WRITABLE;
+
hFile = CreateFile(name, /* file name */
GENERIC_WRITE, /* access mode */
0, /* share mode */
*** ../vim-7.0.129/src/version.c Tue Oct 10 18:29:21 2006
--- src/version.c Tue Oct 10 18:37:12 2006
***************
*** 668,669 ****
--- 668,671 ----
{ /* Add new patch number below this line */
+ /**/
+ 130,
/**/
--
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