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55fb40a502
-critical.c: catch (more) invalid use -impl. sscanf (stolen from wine) crt: -use native mingw headers and not private copies of them -converted some routines to using tchar == impl. many missing unicode routines -impl. sscanf and friends correctly (stolen from wine) tchar.h: -added lotsa missin stuff svn path=/trunk/; revision=13608
40 lines
666 B
C
40 lines
666 B
C
#include "precomp.h"
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#include <io.h>
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#include <errno.h>
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#include <internal/file.h>
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/*
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* @implemented
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*/
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int _dup(int handle)
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{
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HANDLE hFile;
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HANDLE hProcess = GetCurrentProcess();
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BOOL result;
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int fd;
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hFile = (HANDLE)_get_osfhandle(handle);
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if (hFile == INVALID_HANDLE_VALUE) {
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__set_errno(EBADF);
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return -1;
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}
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result = DuplicateHandle(hProcess,
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hFile,
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hProcess,
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&hFile,
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0,
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TRUE,
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DUPLICATE_SAME_ACCESS);
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if (result == FALSE) {
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_dosmaperr(GetLastError());
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return -1;
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}
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fd = alloc_fd(hFile, __fileno_getmode(handle));
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if (fd < 0)
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{
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CloseHandle(hFile);
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}
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return fd;
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}
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