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69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
#include <stdio.h>
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#include <windows.h>
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#include <stdlib.h>
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#include <string.h>
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/* This tests the ability of the target win32 to duplicate a process handle,
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* spawn a child, and have the child dup it's own handle back into the parent
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* using the duplicated handle.
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*/
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int main( int argc, char **argv ) {
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HANDLE h_process;
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HANDLE h_process_in_parent;
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fprintf( stderr, "%lu: Starting\n", GetCurrentProcessId() );
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if( argc == 2 ) {
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h_process = (HANDLE)atoi(argv[1]);
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} else {
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if( !DuplicateHandle( GetCurrentProcess(),
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GetCurrentProcess(),
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GetCurrentProcess(),
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&h_process,
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0,
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TRUE,
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DUPLICATE_SAME_ACCESS) ) {
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fprintf( stderr, "%lu: Could not duplicate my own process handle.\n",
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GetCurrentProcessId() );
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return 101;
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}
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}
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if( argc == 1 ) {
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STARTUPINFO si;
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PROCESS_INFORMATION pi;
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char cmdline[1000];
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memset( &si, 0, sizeof( si ) );
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memset( &pi, 0, sizeof( pi ) );
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sprintf( cmdline, "%s %lu", argv[0], (DWORD)h_process );
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if( !CreateProcess(NULL, cmdline, NULL, NULL, TRUE, 0, NULL, NULL,
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&si, &pi ) ) {
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fprintf( stderr, "%lu: Could not create child process.\n",
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GetCurrentProcessId() );
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return 5;
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}
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if( WaitForSingleObject( pi.hThread, INFINITE ) != WAIT_OBJECT_0 ) {
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fprintf( stderr, "%lu: Failed to wait for child process to terminate.\n",
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GetCurrentProcessId() );
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return 6;
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}
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} else {
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if( !DuplicateHandle( GetCurrentProcess(),
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GetCurrentProcess(),
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h_process,
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&h_process_in_parent,
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0,
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TRUE,
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DUPLICATE_SAME_ACCESS) ) {
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fprintf( stderr, "%lu: Could not duplicate my handle into the parent.\n",
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GetCurrentProcessId() );
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return 102;
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}
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}
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return 0;
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}
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