2000-07-09 13:35:36 +02:00
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/*
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* w9xpopen.c
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*
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* Serves as an intermediate stub Win32 console application to
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* avoid a hanging pipe when redirecting 16-bit console based
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* programs (including MS-DOS console based programs and batch
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* files) on Window 95 and Windows 98.
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*
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* This program is to be launched with redirected standard
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* handles. It will launch the command line specified 16-bit
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* console based application in the same console, forwarding
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2005-07-22 23:49:32 +02:00
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* its own redirected standard handles to the 16-bit child.
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2000-07-09 13:35:36 +02:00
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* AKA solution to the problem described in KB: Q150956.
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*/
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2002-07-15 00:14:19 +02:00
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#define WIN32_LEAN_AND_MEAN
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2000-07-09 13:35:36 +02:00
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#include <windows.h>
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2002-04-03 03:47:00 +02:00
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#include <stdio.h>
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2002-07-15 00:14:19 +02:00
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#include <stdlib.h> /* for malloc and its friends */
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2000-07-09 13:35:36 +02:00
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const char *usage =
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2002-04-16 00:57:46 +02:00
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"This program is used by Python's os.popen function\n"
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2000-07-09 13:35:36 +02:00
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"to work around a limitation in Windows 95/98. It is\n"
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2002-04-16 00:57:46 +02:00
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"not designed to be used as a stand-alone program.";
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2000-07-09 13:35:36 +02:00
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int main(int argc, char *argv[])
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{
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BOOL bRet;
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STARTUPINFO si;
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PROCESS_INFORMATION pi;
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2000-08-14 07:04:28 +02:00
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DWORD exit_code=0;
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Merged revisions 61834,61841-61842,61851-61853,61863-61864,61869-61870,61874,61889 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r61834 | raymond.hettinger | 2008-03-24 07:07:49 +0100 (Mon, 24 Mar 2008) | 1 line
Tighten documentation for Random.triangular.
........
r61841 | raymond.hettinger | 2008-03-24 09:17:39 +0100 (Mon, 24 Mar 2008) | 1 line
Issue 2460: Make Ellipsis objects copyable.
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r61842 | georg.brandl | 2008-03-24 10:34:34 +0100 (Mon, 24 Mar 2008) | 2 lines
#1700821: add a note to audioop docs about signedness of sample formats.
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r61851 | christian.heimes | 2008-03-24 20:57:42 +0100 (Mon, 24 Mar 2008) | 1 line
Added quick hack for bzr
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r61852 | christian.heimes | 2008-03-24 20:58:17 +0100 (Mon, 24 Mar 2008) | 1 line
Added quick hack for bzr
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r61853 | amaury.forgeotdarc | 2008-03-24 22:04:10 +0100 (Mon, 24 Mar 2008) | 4 lines
Issue2469: Correct a typo I introduced at r61793: compilation error with UCS4 builds.
All buildbots compile with UCS2...
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r61863 | neal.norwitz | 2008-03-25 05:17:38 +0100 (Tue, 25 Mar 2008) | 2 lines
Fix a bunch of UnboundLocalErrors when the tests fail.
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r61864 | neal.norwitz | 2008-03-25 05:18:18 +0100 (Tue, 25 Mar 2008) | 2 lines
Try to fix a bunch of compiler warnings on Win64.
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r61869 | neal.norwitz | 2008-03-25 07:35:10 +0100 (Tue, 25 Mar 2008) | 3 lines
Don't try to close a non-open file.
Don't let file removal cause the test to fail.
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r61870 | neal.norwitz | 2008-03-25 08:00:39 +0100 (Tue, 25 Mar 2008) | 7 lines
Try to get this test to be more stable:
* disable gc during the test run because we are spawning objects and there
was an exception when calling Popen.__del__
* Always set an alarm handler so the process doesn't exit if the test fails
(should probably add assertions on the value of hndl_called in more places)
* Using a negative time causes Linux to treat it as zero, so disable that test.
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r61874 | gregory.p.smith | 2008-03-25 08:31:28 +0100 (Tue, 25 Mar 2008) | 2 lines
Use a 32-bit unsigned int here, a long is not needed.
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r61889 | georg.brandl | 2008-03-25 12:59:51 +0100 (Tue, 25 Mar 2008) | 2 lines
Move declarations to block start.
........
2008-03-25 15:56:36 +01:00
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size_t cmdlen = 0;
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2002-04-03 03:47:00 +02:00
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int i;
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char *cmdline, *cmdlinefill;
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2000-07-09 13:35:36 +02:00
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2002-04-03 03:47:00 +02:00
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if (argc < 2) {
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if (GetFileType(GetStdHandle(STD_INPUT_HANDLE))==FILE_TYPE_CHAR)
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/* Attached to a console, and therefore not executed by Python
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Display a message box for the inquisitive user
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*/
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MessageBox(NULL, usage, argv[0], MB_OK);
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else {
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/* Eeek - executed by Python, but args are screwed!
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Write an error message to stdout so there is at
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least some clue for the end user when it appears
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in their output.
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A message box would be hidden and blocks the app.
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*/
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fprintf(stdout, "Internal popen error - no args specified\n%s\n", usage);
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}
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2000-07-09 13:35:36 +02:00
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return 1;
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}
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2002-04-03 03:47:00 +02:00
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/* Build up the command-line from the args.
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Args with a space are quoted, existing quotes are escaped.
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To keep things simple calculating the buffer size, we assume
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every character is a quote - ie, we allocate double what we need
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in the worst case. As this is only double the command line passed
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to us, there is a good chance this is reasonably small, so the total
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allocation will almost always be < 512 bytes.
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*/
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for (i=1;i<argc;i++)
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cmdlen += strlen(argv[i])*2 + 3; /* one space, maybe 2 quotes */
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cmdline = cmdlinefill = (char *)malloc(cmdlen+1);
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if (cmdline == NULL)
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return -1;
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for (i=1;i<argc;i++) {
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const char *arglook;
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int bQuote = strchr(argv[i], ' ') != NULL;
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if (bQuote)
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*cmdlinefill++ = '"';
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/* escape quotes */
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for (arglook=argv[i];*arglook;arglook++) {
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if (*arglook=='"')
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*cmdlinefill++ = '\\';
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*cmdlinefill++ = *arglook;
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}
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if (bQuote)
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*cmdlinefill++ = '"';
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*cmdlinefill++ = ' ';
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}
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*cmdlinefill = '\0';
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2000-07-09 13:35:36 +02:00
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/* Make child process use this app's standard files. */
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ZeroMemory(&si, sizeof si);
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si.cb = sizeof si;
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si.dwFlags = STARTF_USESTDHANDLES;
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si.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
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si.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
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si.hStdError = GetStdHandle(STD_ERROR_HANDLE);
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bRet = CreateProcess(
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2002-04-03 03:47:00 +02:00
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NULL, cmdline,
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2000-07-09 13:35:36 +02:00
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NULL, NULL,
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TRUE, 0,
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NULL, NULL,
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&si, &pi
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);
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2002-04-03 03:47:00 +02:00
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free(cmdline);
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2000-07-09 13:35:36 +02:00
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if (bRet) {
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2000-08-14 07:04:28 +02:00
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if (WaitForSingleObject(pi.hProcess, INFINITE) != WAIT_FAILED) {
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GetExitCodeProcess(pi.hProcess, &exit_code);
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}
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2000-07-09 13:35:36 +02:00
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CloseHandle(pi.hProcess);
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CloseHandle(pi.hThread);
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2000-08-14 07:04:28 +02:00
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return exit_code;
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2000-07-09 13:35:36 +02:00
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}
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return 1;
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}
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