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Merging r70958 from the trunk, regarding http://bugs.python.org/issue5623

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Kristján Valur Jónsson 2009-04-13 10:16:14 +00:00
parent 847f30e2bc
commit f64e6514d7
1 changed files with 23 additions and 38 deletions
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61
Modules/posixmodule.c
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@ -263,6 +263,7 @@ extern int lstat(const char *, struct stat *);
#include <process.h>
#endif
#include "osdefs.h"
#include <malloc.h>
#include <windows.h>
#include <shellapi.h> /* for ShellExecute() */
#endif /* _MSC_VER */
@ -352,47 +353,15 @@ extern int lstat(const char *, struct stat *);
* (all of this is to avoid globally modifying the CRT behaviour using
* _set_invalid_parameter_handler() and _CrtSetReportMode())
*/
#if _MSC_VER >= 1500 /* VS 2008 */
/* The actual size of the structure is determined at runtime.
* Only the first items must be present.
*/
typedef struct {
intptr_t osfhnd;
char osfile;
char pipech;
int lockinitflag;
CRITICAL_SECTION lock;
#ifndef _SAFECRT_IMPL
char textmode : 7;
char unicode : 1;
char pipech2[2];
__int64 startpos;
BOOL utf8translations;
char dbcsBuffer;
BOOL dbcsBufferUsed;
#endif /* _SAFECRT_IMPL */
} ioinfo;
#elif _MSC_VER >= 1400 /* VS 2005 */
typedef struct {
intptr_t osfhnd;
char osfile;
char pipech;
int lockinitflag;
CRITICAL_SECTION lock;
#ifndef _SAFECRT_IMPL
char textmode : 7;
char unicode : 1;
char pipech2[2];
__int64 startpos;
BOOL utf8translations;
#ifndef _DEBUG
/* padding hack. 8 byte extra length observed at
* runtime, for 32 and 64 bits when not in _DEBUG
*/
__int32 _padding[2];
#endif
#endif /* _SAFECRT_IMPL */
} ioinfo;
#endif
} my_ioinfo;
extern __declspec(dllimport) ioinfo * __pioinfo[];
extern __declspec(dllimport) char * __pioinfo[];
#define IOINFO_L2E 5
#define IOINFO_ARRAY_ELTS (1 << IOINFO_L2E)
#define IOINFO_ARRAYS 64
@ -406,6 +375,19 @@ _PyVerify_fd(int fd)
{
const int i1 = fd >> IOINFO_L2E;
const int i2 = fd & ((1 << IOINFO_L2E) - 1);
static int sizeof_ioinfo = 0;
/* Determine the actual size of the ioinfo structure,
* as used by the CRT loaded in memory
*/
if (sizeof_ioinfo == 0 && __pioinfo[0] != NULL) {
sizeof_ioinfo = _msize(__pioinfo[0]) / IOINFO_ARRAY_ELTS;
}
if (sizeof_ioinfo == 0) {
/* This should not happen... */
goto fail;
}
/* See that it isn't a special CLEAR fileno */
if (fd != _NO_CONSOLE_FILENO) {
@ -414,10 +396,13 @@ _PyVerify_fd(int fd)
*/
if (0 <= i1 && i1 < IOINFO_ARRAYS && __pioinfo[i1] != NULL) {
/* finally, check that the file is open */
if (__pioinfo[i1][i2].osfile & FOPEN)
my_ioinfo* info = (my_ioinfo*)(__pioinfo[i1] + i2 * sizeof_ioinfo);
if (info->osfile & FOPEN) {
return 1;
}
}
}
fail:
errno = EBADF;
return 0;
}