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patch 8.0.1030: MS-Windows: wrong size computation in is_cygpty()

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Problem:    MS-Windows: wrong size computation in is_cygpty().
Solution:   Compute the size properly. (Ken Takata)
This commit is contained in:
Bram Moolenaar 2017-08-31 21:35:45 +02:00
parent da73253a0b
commit 9e8dcf9d6f
3 changed files with 22 additions and 11 deletions

24
src/iscygpty.c
View file

@ -2,7 +2,7 @@
* iscygpty.c -- part of ptycheck
* https://github.com/k-takata/ptycheck
*
* Copyright (c) 2015-2016 K.Takata
* Copyright (c) 2015-2017 K.Takata
*
* You can redistribute it and/or modify it under the terms of either
* the MIT license (as described below) or the Vim license.
@ -27,6 +27,8 @@
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifdef _WIN32
#include <ctype.h>
#include <io.h>
#include <wchar.h>
@ -60,19 +62,19 @@
//#define USE_DYNFILEID
#ifdef USE_DYNFILEID
typedef BOOL (WINAPI *pfnGetFileInformationByHandleEx)(
HANDLE hFile,
HANDLE hFile,
FILE_INFO_BY_HANDLE_CLASS FileInformationClass,
LPVOID lpFileInformation,
DWORD dwBufferSize
LPVOID lpFileInformation,
DWORD dwBufferSize
);
static pfnGetFileInformationByHandleEx pGetFileInformationByHandleEx = NULL;
# ifndef USE_FILEEXTD
static BOOL WINAPI stub_GetFileInformationByHandleEx(
HANDLE hFile,
HANDLE hFile,
FILE_INFO_BY_HANDLE_CLASS FileInformationClass,
LPVOID lpFileInformation,
DWORD dwBufferSize
LPVOID lpFileInformation,
DWORD dwBufferSize
)
{
return FALSE;
@ -111,7 +113,7 @@ int is_cygpty(int fd)
return 0;
#else
HANDLE h;
int size = sizeof(FILE_NAME_INFO) + sizeof(WCHAR) * MAX_PATH;
int size = sizeof(FILE_NAME_INFO) + sizeof(WCHAR) * (MAX_PATH - 1);
FILE_NAME_INFO *nameinfo;
WCHAR *p = NULL;
@ -125,7 +127,7 @@ int is_cygpty(int fd)
if (GetFileType(h) != FILE_TYPE_PIPE) {
return 0;
}
nameinfo = malloc(size);
nameinfo = malloc(size + sizeof(WCHAR));
if (nameinfo == NULL) {
return 0;
}
@ -178,4 +180,6 @@ int is_cygpty_used(void)
return ret;
}
/* vi:set ts=8 sts=4 sw=4 noet: */
#endif /* _WIN32 */
/* vim: set ts=4 sw=4: */

7
src/iscygpty.h
View file

@ -2,7 +2,7 @@
* iscygpty.h -- part of ptycheck
* https://github.com/k-takata/ptycheck
*
* Copyright (c) 2015-2016 K.Takata
* Copyright (c) 2015-2017 K.Takata
*
* You can redistribute it and/or modify it under the terms of either
* the MIT license (as described below) or the Vim license.
@ -30,7 +30,12 @@
#ifndef _ISCYGPTY_H
#define _ISCYGPTY_H
#ifdef _WIN32
int is_cygpty(int fd);
int is_cygpty_used(void);
#else
#define is_cygpty(fd) 0
#define is_cygpty_used() 0
#endif
#endif /* _ISCYGPTY_H */

2
src/version.c
View file

@ -769,6 +769,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
1030,
/**/
1029,
/**/