2 W32 version of 'cat' program
5 cat is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 cat is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with cat; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 #include <windows.h>
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25 main (int argc, char **argv)
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29 wchar_t *commandlinew, **argvw;
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33 stdo = GetStdHandle (STD_OUTPUT_HANDLE);
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34 if (stdo == INVALID_HANDLE_VALUE || stdo == NULL)
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37 commandlinew = GetCommandLineW ();
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38 argvw = CommandLineToArgvW (commandlinew, &argcw);
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42 for (i = 1; i < argcw || argcw == 1; i++)
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45 int is_dash = wcscmp (argvw[i], L"-") == 0;
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46 if (argcw == 1 || is_dash)
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48 stdi = GetStdHandle (STD_INPUT_HANDLE);
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49 if (stdi == INVALID_HANDLE_VALUE)
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51 fprintf (stderr, "cat: Failed to obtain stdin handle.\n");
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56 fprintf (stderr, "cat: Have no stdin.\n");
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62 stdi = CreateFileW (argvw[i], GENERIC_READ, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, NULL);
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63 if (stdi == INVALID_HANDLE_VALUE)
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66 DWORD le = GetLastError ();
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67 if (0 < FormatMessageW (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, 0, le, 0, (wchar_t *) &msgbuf, 0, NULL))
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69 fprintf (stderr, "cat: Failed to open file `%S'. Error %lu.\n", argvw[i], le);
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72 fprintf (stderr, "cat: Failed to open file `%S'. Error %lu: %S\n", argvw[i], le, msgbuf);
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81 b = ReadFile (stdi, &c, 1, &r, NULL);
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84 b = WriteFile (stdo, &c, 1, &w, NULL);
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88 DWORD le = GetLastError ();
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89 if (0 < FormatMessageW (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, 0, le, 0, (wchar_t *) &msgbuf, 0, NULL))
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91 fprintf (stderr, "cat: Failed to write into stdout. Error %lu.\n", le);
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94 fprintf (stderr, "cat: Failed to write into stdout. Error %lu: %S\n", le, msgbuf);
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100 } while (b && r > 0);
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104 CloseHandle (stdi);
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