/*
W32 version of 'cat' program
- (C) 2012 LRN
+ Copyright (C) 2012 LRN
cat is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
You should have received a copy of the GNU General Public License
along with cat; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
+ Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
*/
-\r
-#include <stdio.h>\r
-#include <windows.h>\r
-\r
-int\r
-main (int argc, char **argv)\r
-{\r
- HANDLE stdi, stdo;\r
- BOOL b;\r
- wchar_t *commandlinew, **argvw;\r
- int argcw;\r
- int i;\r
-\r
- stdo = GetStdHandle (STD_OUTPUT_HANDLE);\r
- if (stdo == INVALID_HANDLE_VALUE || stdo == NULL)\r
- return 1;\r
-\r
- commandlinew = GetCommandLineW ();\r
- argvw = CommandLineToArgvW (commandlinew, &argcw);\r
- if (argvw == NULL)\r
- return 1;\r
-\r
- for (i = 1; i < argcw || argcw == 1; i++)\r
- {\r
- DWORD r, w;\r
- int is_dash = wcscmp (argvw[i], L"-") == 0;\r
- if (argcw == 1 || is_dash)\r
- {\r
- stdi = GetStdHandle (STD_INPUT_HANDLE);\r
- if (stdi == INVALID_HANDLE_VALUE)\r
- {\r
- fprintf (stderr, "cat: Failed to obtain stdin handle.\n");\r
- return 4;\r
- }\r
- if (stdi == NULL)\r
- {\r
- fprintf (stderr, "cat: Have no stdin.\n");\r
- return 5;\r
- }\r
- }\r
- else\r
- {\r
- stdi = CreateFileW (argvw[i], GENERIC_READ, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, NULL);\r
- if (stdi == INVALID_HANDLE_VALUE)\r
- {\r
- wchar_t *msgbuf;\r
- DWORD le = GetLastError ();\r
- if (0 < FormatMessageW (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, 0, le, 0, (wchar_t *) &msgbuf, 0, NULL))\r
- {\r
- fprintf (stderr, "cat: Failed to open file `%S'. Error %lu.\n", argvw[i], le);\r
- return 3;\r
- }\r
- fprintf (stderr, "cat: Failed to open file `%S'. Error %lu: %S\n", argvw[i], le, msgbuf);\r
- if (msgbuf != NULL)\r
- LocalFree (msgbuf);\r
- return 2;\r
- }\r
- }\r
- do\r
- {\r
- unsigned char c;\r
- b = ReadFile (stdi, &c, 1, &r, NULL);\r
- if (b && r > 0)\r
- {\r
- b = WriteFile (stdo, &c, 1, &w, NULL);\r
- if (b == 0)\r
- {\r
- wchar_t *msgbuf;\r
- DWORD le = GetLastError ();\r
- if (0 < FormatMessageW (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, 0, le, 0, (wchar_t *) &msgbuf, 0, NULL))\r
- {\r
- fprintf (stderr, "cat: Failed to write into stdout. Error %lu.\n", le);\r
- return 3;\r
- }\r
- fprintf (stderr, "cat: Failed to write into stdout. Error %lu: %S\n", le, msgbuf);\r
- if (msgbuf != NULL)\r
- LocalFree (msgbuf);\r
- return 6;\r
- }\r
- }\r
- } while (b && r > 0);\r
- if (argcw == 1)\r
- break;\r
- if (!is_dash)\r
- CloseHandle (stdi);\r
- }\r
- LocalFree (argvw);\r
- return 0;\r
-}\r
+
+#include <stdio.h>
+#include <windows.h>
+#include <stdint.h>
+#include <signal.h>
+
+DWORD WINAPI
+parent_control_thread (LPVOID lpParameter)
+{
+ HANDLE h = (HANDLE) lpParameter;
+ while (TRUE)
+ {
+ DWORD dw;
+ BOOL b;
+ unsigned char c;
+ b = ReadFile (h, &c, 1, &dw, NULL);
+ if (!b)
+ {
+ ExitProcess (0);
+ }
+ raise ((int) c);
+ }
+}
+
+void
+install_parent_control_handler ()
+{
+ const char *env_buf;
+ char *env_buf_end;
+ uint64_t pipe_fd;
+ HANDLE pipe_handle;
+
+ env_buf = getenv ("GNUNET_OS_CONTROL_PIPE");
+ if ( (NULL == env_buf) || (strlen (env_buf) <= 0) )
+ return;
+ errno = 0;
+ pipe_fd = strtoull (env_buf, &env_buf_end, 16);
+ if ((0 != errno) || (env_buf == env_buf_end))
+ return;
+ /* Gcc will issue a warning here. What to do with it? */
+ pipe_handle = (HANDLE) (uintptr_t) pipe_fd;
+ CreateThread (NULL, 0, parent_control_thread, (LPVOID) pipe_handle, 0, NULL);
+}
+
+int
+main (int argc, char **argv)
+{
+ HANDLE stdi, stdo;
+ BOOL b;
+ wchar_t *commandlinew, **argvw;
+ int argcw;
+ int i;
+
+ stdo = GetStdHandle (STD_OUTPUT_HANDLE);
+ if (stdo == INVALID_HANDLE_VALUE || stdo == NULL)
+ return 1;
+
+ commandlinew = GetCommandLineW ();
+ argvw = CommandLineToArgvW (commandlinew, &argcw);
+ if (argvw == NULL)
+ return 1;
+
+ install_parent_control_handler ();
+
+ for (i = 1; i < argcw || argcw == 1; i++)
+ {
+ DWORD r, w;
+ int is_dash = wcscmp (NULL == argvw[i] ? L"-" : argvw[i], L"-") == 0;
+ if (argcw == 1 || is_dash)
+ {
+ stdi = GetStdHandle (STD_INPUT_HANDLE);
+ if (stdi == INVALID_HANDLE_VALUE)
+ {
+ fprintf (stderr, "cat: Failed to obtain stdin handle.\n");
+ return 4;
+ }
+ if (stdi == NULL)
+ {
+ fprintf (stderr, "cat: Have no stdin.\n");
+ return 5;
+ }
+ }
+ else
+ {
+ stdi = CreateFileW (argvw[i], GENERIC_READ, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, NULL);
+ if (stdi == INVALID_HANDLE_VALUE)
+ {
+ wchar_t *msgbuf;
+ DWORD le = GetLastError ();
+ if (0 < FormatMessageW (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, 0, le, 0, (wchar_t *) &msgbuf, 0, NULL))
+ {
+ fprintf (stderr, "cat: Failed to open file `%S'. Error %lu.\n", argvw[i], le);
+ return 3;
+ }
+ fprintf (stderr, "cat: Failed to open file `%S'. Error %lu: %S\n", argvw[i], le, msgbuf);
+ if (msgbuf != NULL)
+ LocalFree (msgbuf);
+ return 2;
+ }
+ }
+ do
+ {
+ unsigned char c;
+ b = ReadFile (stdi, &c, 1, &r, NULL);
+ if (b && r > 0)
+ {
+ b = WriteFile (stdo, &c, 1, &w, NULL);
+ if (b == 0)
+ {
+ wchar_t *msgbuf;
+ DWORD le = GetLastError ();
+ if (0 < FormatMessageW (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, 0, le, 0, (wchar_t *) &msgbuf, 0, NULL))
+ {
+ fprintf (stderr, "cat: Failed to write into stdout. Error %lu.\n", le);
+ return 3;
+ }
+ fprintf (stderr, "cat: Failed to write into stdout. Error %lu: %S\n", le, msgbuf);
+ if (msgbuf != NULL)
+ LocalFree (msgbuf);
+ return 6;
+ }
+ }
+ } while (b && r > 0);
+ if (argcw == 1)
+ break;
+ if (!is_dash)
+ CloseHandle (stdi);
+ }
+ LocalFree (argvw);
+ return 0;
+}
projects / oweals / gnunet.git / blobdiff