cpython/Python/dynload_win.c
Guido van Rossum e7ba495627 Merged revisions 55631-55794 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/p3yk

................
  r55636 | neal.norwitz | 2007-05-29 00:06:39 -0700 (Tue, 29 May 2007) | 149 lines

  Merged revisions 55506-55635 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

  ........
    r55507 | georg.brandl | 2007-05-22 07:28:17 -0700 (Tue, 22 May 2007) | 2 lines

    Remove the "panel" module doc file which has been ignored since 1994.
  ........
    r55522 | mark.hammond | 2007-05-22 19:04:28 -0700 (Tue, 22 May 2007) | 4 lines

    Remove definition of PY_UNICODE_TYPE from pyconfig.h, allowing the
    definition in unicodeobject.h to be used, giving us the desired
    wchar_t in place of 'unsigned short'.  As discussed on python-dev.
  ........
    r55525 | neal.norwitz | 2007-05-22 23:35:32 -0700 (Tue, 22 May 2007) | 6 lines

    Add -3 option to the interpreter to warn about features that are
    deprecated and will be changed/removed in Python 3.0.

    This patch is mostly from Anthony.  I tweaked some format and added
    a little doc.
  ........
    r55527 | neal.norwitz | 2007-05-22 23:57:35 -0700 (Tue, 22 May 2007) | 1 line

    Whitespace cleanup
  ........
    r55528 | neal.norwitz | 2007-05-22 23:58:36 -0700 (Tue, 22 May 2007) | 1 line

    Add a bunch more deprecation warnings for builtins that are going away in 3.0
  ........
    r55549 | georg.brandl | 2007-05-24 09:49:29 -0700 (Thu, 24 May 2007) | 2 lines

    shlex.split() now has an optional "posix" parameter.
  ........
    r55550 | georg.brandl | 2007-05-24 10:33:33 -0700 (Thu, 24 May 2007) | 2 lines

    Fix parameter passing.
  ........
    r55555 | facundo.batista | 2007-05-24 10:50:54 -0700 (Thu, 24 May 2007) | 6 lines


    Added an optional timeout parameter to urllib.ftpwrapper, with tests
    (for this and a basic one, because there weren't any). Changed also
    NEWS, but didn't find documentation for this function, assumed it
    wasn't public...
  ........
    r55563 | facundo.batista | 2007-05-24 13:01:59 -0700 (Thu, 24 May 2007) | 4 lines


    Removed the .recv() in the test, is not necessary, and was
    causing problems that didn't have anything to do with was
    actually being tested...
  ........
    r55564 | facundo.batista | 2007-05-24 13:51:19 -0700 (Thu, 24 May 2007) | 5 lines


    Let's see if reading exactly what is written allow this live
    test to pass (now I know why there were so few tests in ftp,
    http, etc, :( ).
  ........
    r55567 | facundo.batista | 2007-05-24 20:10:28 -0700 (Thu, 24 May 2007) | 4 lines


    Trying to make the tests work in Windows and Solaris, everywhere
    else just works
  ........
    r55568 | facundo.batista | 2007-05-24 20:47:19 -0700 (Thu, 24 May 2007) | 4 lines


    Fixing stupid error, and introducing a sleep, to see if the
    other thread is awakened and finish sending data.
  ........
    r55569 | facundo.batista | 2007-05-24 21:20:22 -0700 (Thu, 24 May 2007) | 4 lines


    Commenting out the tests until find out who can test them in
    one of the problematic enviroments.
  ........
    r55570 | neal.norwitz | 2007-05-24 22:13:40 -0700 (Thu, 24 May 2007) | 2 lines

    Get test passing again by commenting out the reference to the test class.
  ........
    r55575 | vinay.sajip | 2007-05-25 00:05:59 -0700 (Fri, 25 May 2007) | 1 line

    Updated docstring for SysLogHandler (#1720726).
  ........
    r55576 | vinay.sajip | 2007-05-25 00:06:55 -0700 (Fri, 25 May 2007) | 1 line

    Updated documentation for SysLogHandler (#1720726).
  ........
    r55592 | brett.cannon | 2007-05-25 13:17:15 -0700 (Fri, 25 May 2007) | 3 lines

    Remove direct call's to file's constructor and replace them with calls to
    open() as ths is considered best practice.
  ........
    r55601 | kristjan.jonsson | 2007-05-26 12:19:50 -0700 (Sat, 26 May 2007) | 1 line

    Remove the rgbimgmodule from PCBuild8
  ........
    r55602 | kristjan.jonsson | 2007-05-26 12:31:39 -0700 (Sat, 26 May 2007) | 1 line

    Include <windows.h> after python.h, so that WINNT is properly set before windows.h is included.  Fixes warnings in PC builds.
  ........
    r55603 | walter.doerwald | 2007-05-26 14:04:13 -0700 (Sat, 26 May 2007) | 2 lines

    Fix typo.
  ........
    r55604 | peter.astrand | 2007-05-26 15:18:20 -0700 (Sat, 26 May 2007) | 1 line

    Applied patch 1669481, slightly modified: Support close_fds on Win32
  ........
    r55606 | neal.norwitz | 2007-05-26 21:08:54 -0700 (Sat, 26 May 2007) | 2 lines

    Add the new function object attribute names from py3k.
  ........
    r55617 | lars.gustaebel | 2007-05-27 12:49:30 -0700 (Sun, 27 May 2007) | 20 lines

    Added errors argument to TarFile class that allows the user to
    specify an error handling scheme for character conversion. Additional
    scheme "utf-8" in read mode. Unicode input filenames are now
    supported by design. The values of the pax_headers dictionary are now
    limited to unicode objects.

    Fixed: The prefix field is no longer used in PAX_FORMAT (in
    conformance with POSIX).
    Fixed: In read mode use a possible pax header size field.
    Fixed: Strip trailing slashes from pax header name values.
    Fixed: Give values in user-specified pax_headers precedence when
    writing.

    Added unicode tests. Added pax/regtype4 member to testtar.tar all
    possible number fields in a pax header.

    Added two chapters to the documentation about the different formats
    tarfile.py supports and how unicode issues are handled.
  ........
    r55618 | raymond.hettinger | 2007-05-27 22:23:22 -0700 (Sun, 27 May 2007) | 1 line

    Explain when groupby() issues a new group.
  ........
    r55634 | martin.v.loewis | 2007-05-28 21:01:29 -0700 (Mon, 28 May 2007) | 2 lines

    Test pre-commit hook for a link to a .py file.
  ........
    r55635 | martin.v.loewis | 2007-05-28 21:02:03 -0700 (Mon, 28 May 2007) | 2 lines

    Revert 55634.
  ........
................
  r55639 | neal.norwitz | 2007-05-29 00:58:11 -0700 (Tue, 29 May 2007) | 1 line

  Remove sys.exc_{type,exc_value,exc_traceback}
................
  r55641 | neal.norwitz | 2007-05-29 01:03:50 -0700 (Tue, 29 May 2007) | 1 line

  Missed one sys.exc_type.  I wonder why exc_{value,traceback} were already gone
................
  r55642 | neal.norwitz | 2007-05-29 01:08:33 -0700 (Tue, 29 May 2007) | 1 line

  Missed more doc for sys.exc_* attrs.
................
  r55643 | neal.norwitz | 2007-05-29 01:18:19 -0700 (Tue, 29 May 2007) | 1 line

  Remove sys.exc_clear()
................
  r55665 | guido.van.rossum | 2007-05-29 19:45:43 -0700 (Tue, 29 May 2007) | 4 lines

  Make None, True, False keywords.
  We can now also delete all the other places that explicitly forbid
  assignment to None, but I'm not going to bother right now.
................
  r55666 | guido.van.rossum | 2007-05-29 20:01:51 -0700 (Tue, 29 May 2007) | 3 lines

  Found another place that needs check for forbidden names.
  Fixed test_syntax.py accordingly (it helped me find that one).
................
  r55668 | guido.van.rossum | 2007-05-29 20:41:48 -0700 (Tue, 29 May 2007) | 2 lines

  Mark None, True, False as keywords.
................
  r55673 | neal.norwitz | 2007-05-29 23:28:25 -0700 (Tue, 29 May 2007) | 3 lines

  Get the dis module working on modules again after changing dicts
  to not return lists and also new-style classes.  Add a test.
................
  r55674 | neal.norwitz | 2007-05-29 23:35:45 -0700 (Tue, 29 May 2007) | 1 line

  Umm, it helps to add the module that the test uses
................
  r55675 | neal.norwitz | 2007-05-29 23:53:05 -0700 (Tue, 29 May 2007) | 4 lines

  Try to fix up all the other places that were assigning to True/False.
  There's at least one more problem in test.test_xmlrpc.  I have other
  changes in that file and that should be fixed soon (I hope).
................
  r55679 | neal.norwitz | 2007-05-30 00:31:55 -0700 (Wed, 30 May 2007) | 1 line

  Fix up another place that was assigning to True/False.
................
  r55688 | brett.cannon | 2007-05-30 14:19:47 -0700 (Wed, 30 May 2007) | 2 lines

  Ditch MimeWriter.
................
  r55692 | brett.cannon | 2007-05-30 14:52:00 -0700 (Wed, 30 May 2007) | 2 lines

  Remove the mimify module.
................
  r55707 | guido.van.rossum | 2007-05-31 05:08:45 -0700 (Thu, 31 May 2007) | 2 lines

  Backport the addition of show_code() to dis.py -- it's too handy.
................
  r55708 | guido.van.rossum | 2007-05-31 06:22:57 -0700 (Thu, 31 May 2007) | 7 lines

  Fix a fairly long-standing bug in the check for assignment to None (and other
  keywords, these days).  In 2.5, you could write foo(None=1) without getting
  a SyntaxError (although foo()'s definition would have to use **kwds to avoid
  getting a runtime error complaining about an unknown keyword of course).

  This ought to be backported to 2.5.2 or at least 2.6.
................
  r55724 | brett.cannon | 2007-05-31 19:32:41 -0700 (Thu, 31 May 2007) | 2 lines

  Remove the cfmfile.
................
  r55727 | neal.norwitz | 2007-05-31 22:19:44 -0700 (Thu, 31 May 2007) | 1 line

  Remove reload() builtin.
................
  r55729 | neal.norwitz | 2007-05-31 22:51:30 -0700 (Thu, 31 May 2007) | 59 lines

  Merged revisions 55636-55728 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

  ........
    r55637 | georg.brandl | 2007-05-29 00:16:47 -0700 (Tue, 29 May 2007) | 2 lines

    Fix rst markup.
  ........
    r55638 | neal.norwitz | 2007-05-29 00:51:39 -0700 (Tue, 29 May 2007) | 1 line

    Fix typo in doc
  ........
    r55671 | neal.norwitz | 2007-05-29 21:53:41 -0700 (Tue, 29 May 2007) | 1 line

    Fix indentation (whitespace only).
  ........
    r55676 | thomas.heller | 2007-05-29 23:58:30 -0700 (Tue, 29 May 2007) | 1 line

    Fix compiler warnings.
  ........
    r55677 | thomas.heller | 2007-05-30 00:01:25 -0700 (Wed, 30 May 2007) | 2 lines

    Correct the name of a field in the WIN32_FIND_DATAA and WIN32_FIND_DATAW structures.
    Closes bug #1726026.
  ........
    r55686 | brett.cannon | 2007-05-30 13:46:26 -0700 (Wed, 30 May 2007) | 2 lines

    Have MimeWriter raise a DeprecationWarning as per PEP 4 and its documentation.
  ........
    r55690 | brett.cannon | 2007-05-30 14:48:58 -0700 (Wed, 30 May 2007) | 3 lines

    Have mimify raise a DeprecationWarning.  The docs and PEP 4 have listed the
    module as deprecated for a while.
  ........
    r55696 | brett.cannon | 2007-05-30 15:24:28 -0700 (Wed, 30 May 2007) | 2 lines

    Have md5 raise a DeprecationWarning as per PEP 4.
  ........
    r55705 | neal.norwitz | 2007-05-30 21:14:22 -0700 (Wed, 30 May 2007) | 1 line

    Add some spaces in the example code.
  ........
    r55716 | brett.cannon | 2007-05-31 12:20:00 -0700 (Thu, 31 May 2007) | 2 lines

    Have the sha module raise a DeprecationWarning as specified in PEP 4.
  ........
    r55719 | brett.cannon | 2007-05-31 12:40:42 -0700 (Thu, 31 May 2007) | 2 lines

    Cause buildtools to raise a DeprecationWarning.
  ........
    r55721 | brett.cannon | 2007-05-31 13:01:11 -0700 (Thu, 31 May 2007) | 2 lines

    Have cfmfile raise a DeprecationWarning as per PEP 4.
  ........
    r55726 | neal.norwitz | 2007-05-31 21:56:47 -0700 (Thu, 31 May 2007) | 1 line

    Mail if there is an installation failure.
  ........
................
  r55730 | neal.norwitz | 2007-05-31 23:22:07 -0700 (Thu, 31 May 2007) | 2 lines

  Remove the code that was missed in rev 55303.
................
  r55738 | neal.norwitz | 2007-06-01 19:10:43 -0700 (Fri, 01 Jun 2007) | 1 line

  Fix doc breakage
................
  r55741 | neal.norwitz | 2007-06-02 00:41:58 -0700 (Sat, 02 Jun 2007) | 1 line

  Remove timing module (plus some remnants of other modules).
................
  r55742 | neal.norwitz | 2007-06-02 00:51:44 -0700 (Sat, 02 Jun 2007) | 1 line

  Remove posixfile module (plus some remnants of other modules).
................
  r55744 | neal.norwitz | 2007-06-02 10:18:56 -0700 (Sat, 02 Jun 2007) | 1 line

  Fix doc breakage.
................
  r55745 | neal.norwitz | 2007-06-02 11:32:16 -0700 (Sat, 02 Jun 2007) | 1 line

  Make a whatsnew 3.0 template.
................
  r55754 | neal.norwitz | 2007-06-03 23:24:18 -0700 (Sun, 03 Jun 2007) | 1 line

  SF #1730441, os._execvpe raises UnboundLocal due to new try/except semantics
................
  r55755 | neal.norwitz | 2007-06-03 23:26:00 -0700 (Sun, 03 Jun 2007) | 1 line

  Get rid of extra whitespace
................
  r55794 | guido.van.rossum | 2007-06-06 15:29:22 -0700 (Wed, 06 Jun 2007) | 3 lines

  Make this compile in GCC 2.96, which does not allow interspersing
  declarations and code.
................
2007-06-06 23:52:48 +00:00

256 lines
7.2 KiB
C

/* Support for dynamic loading of extension modules */
#ifdef HAVE_DIRECT_H
#include <direct.h>
#endif
#include <ctype.h>
#include "Python.h"
#include "importdl.h"
#include <windows.h>
const struct filedescr _PyImport_DynLoadFiletab[] = {
#ifdef _DEBUG
{"_d.pyd", "rb", C_EXTENSION},
#else
{".pyd", "rb", C_EXTENSION},
#endif
{0, 0}
};
/* Case insensitive string compare, to avoid any dependencies on particular
C RTL implementations */
static int strcasecmp (char *string1, char *string2)
{
int first, second;
do {
first = tolower(*string1);
second = tolower(*string2);
string1++;
string2++;
} while (first && first == second);
return (first - second);
}
/* Function to return the name of the "python" DLL that the supplied module
directly imports. Looks through the list of imported modules and
returns the first entry that starts with "python" (case sensitive) and
is followed by nothing but numbers until the separator (period).
Returns a pointer to the import name, or NULL if no matching name was
located.
This function parses through the PE header for the module as loaded in
memory by the system loader. The PE header is accessed as documented by
Microsoft in the MSDN PE and COFF specification (2/99), and handles
both PE32 and PE32+. It only worries about the direct import table and
not the delay load import table since it's unlikely an extension is
going to be delay loading Python (after all, it's already loaded).
If any magic values are not found (e.g., the PE header or optional
header magic), then this function simply returns NULL. */
#define DWORD_AT(mem) (*(DWORD *)(mem))
#define WORD_AT(mem) (*(WORD *)(mem))
static char *GetPythonImport (HINSTANCE hModule)
{
unsigned char *dllbase, *import_data, *import_name;
DWORD pe_offset, opt_offset;
WORD opt_magic;
int num_dict_off, import_off;
/* Safety check input */
if (hModule == NULL) {
return NULL;
}
/* Module instance is also the base load address. First portion of
memory is the MS-DOS loader, which holds the offset to the PE
header (from the load base) at 0x3C */
dllbase = (unsigned char *)hModule;
pe_offset = DWORD_AT(dllbase + 0x3C);
/* The PE signature must be "PE\0\0" */
if (memcmp(dllbase+pe_offset,"PE\0\0",4)) {
return NULL;
}
/* Following the PE signature is the standard COFF header (20
bytes) and then the optional header. The optional header starts
with a magic value of 0x10B for PE32 or 0x20B for PE32+ (PE32+
uses 64-bits for some fields). It might also be 0x107 for a ROM
image, but we don't process that here.
The optional header ends with a data dictionary that directly
points to certain types of data, among them the import entries
(in the second table entry). Based on the header type, we
determine offsets for the data dictionary count and the entry
within the dictionary pointing to the imports. */
opt_offset = pe_offset + 4 + 20;
opt_magic = WORD_AT(dllbase+opt_offset);
if (opt_magic == 0x10B) {
/* PE32 */
num_dict_off = 92;
import_off = 104;
} else if (opt_magic == 0x20B) {
/* PE32+ */
num_dict_off = 108;
import_off = 120;
} else {
/* Unsupported */
return NULL;
}
/* Now if an import table exists, offset to it and walk the list of
imports. The import table is an array (ending when an entry has
empty values) of structures (20 bytes each), which contains (at
offset 12) a relative address (to the module base) at which a
string constant holding the import name is located. */
if (DWORD_AT(dllbase + opt_offset + num_dict_off) >= 2) {
/* We have at least 2 tables - the import table is the second
one. But still it may be that the table size is zero */
if (0 == DWORD_AT(dllbase + opt_offset + import_off + sizeof(DWORD)))
return NULL;
import_data = dllbase + DWORD_AT(dllbase +
opt_offset +
import_off);
while (DWORD_AT(import_data)) {
import_name = dllbase + DWORD_AT(import_data+12);
if (strlen(import_name) >= 6 &&
!strncmp(import_name,"python",6)) {
char *pch;
/* Ensure python prefix is followed only
by numbers to the end of the basename */
pch = import_name + 6;
#ifdef _DEBUG
while (*pch && pch[0] != '_' && pch[1] != 'd' && pch[2] != '.') {
#else
while (*pch && *pch != '.') {
#endif
if (*pch >= '0' && *pch <= '9') {
pch++;
} else {
pch = NULL;
break;
}
}
if (pch) {
/* Found it - return the name */
return import_name;
}
}
import_data += 20;
}
}
return NULL;
}
dl_funcptr _PyImport_GetDynLoadFunc(const char *fqname, const char *shortname,
const char *pathname, FILE *fp)
{
dl_funcptr p;
char funcname[258], *import_python;
PyOS_snprintf(funcname, sizeof(funcname), "init%.200s", shortname);
{
HINSTANCE hDLL = NULL;
char pathbuf[260];
LPTSTR dummy;
/* We use LoadLibraryEx so Windows looks for dependent DLLs
in directory of pathname first. However, Windows95
can sometimes not work correctly unless the absolute
path is used. If GetFullPathName() fails, the LoadLibrary
will certainly fail too, so use its error code */
if (GetFullPathName(pathname,
sizeof(pathbuf),
pathbuf,
&dummy))
/* XXX This call doesn't exist in Windows CE */
hDLL = LoadLibraryEx(pathname, NULL,
LOAD_WITH_ALTERED_SEARCH_PATH);
if (hDLL==NULL){
char errBuf[256];
unsigned int errorCode;
/* Get an error string from Win32 error code */
char theInfo[256]; /* Pointer to error text
from system */
int theLength; /* Length of error text */
errorCode = GetLastError();
theLength = FormatMessage(
FORMAT_MESSAGE_FROM_SYSTEM, /* flags */
NULL, /* message source */
errorCode, /* the message (error) ID */
0, /* default language environment */
(LPTSTR) theInfo, /* the buffer */
sizeof(theInfo), /* the buffer size */
NULL); /* no additional format args. */
/* Problem: could not get the error message.
This should not happen if called correctly. */
if (theLength == 0) {
PyOS_snprintf(errBuf, sizeof(errBuf),
"DLL load failed with error code %d",
errorCode);
} else {
size_t len;
/* For some reason a \r\n
is appended to the text */
if (theLength >= 2 &&
theInfo[theLength-2] == '\r' &&
theInfo[theLength-1] == '\n') {
theLength -= 2;
theInfo[theLength] = '\0';
}
strcpy(errBuf, "DLL load failed: ");
len = strlen(errBuf);
strncpy(errBuf+len, theInfo,
sizeof(errBuf)-len);
errBuf[sizeof(errBuf)-1] = '\0';
}
PyErr_SetString(PyExc_ImportError, errBuf);
return NULL;
} else {
char buffer[256];
#ifdef _DEBUG
PyOS_snprintf(buffer, sizeof(buffer), "python%d%d_d.dll",
#else
PyOS_snprintf(buffer, sizeof(buffer), "python%d%d.dll",
#endif
PY_MAJOR_VERSION,PY_MINOR_VERSION);
import_python = GetPythonImport(hDLL);
if (import_python &&
strcasecmp(buffer,import_python)) {
PyOS_snprintf(buffer, sizeof(buffer),
"Module use of %.150s conflicts "
"with this version of Python.",
import_python);
PyErr_SetString(PyExc_ImportError,buffer);
FreeLibrary(hDLL);
return NULL;
}
}
p = GetProcAddress(hDLL, funcname);
}
return p;
}