Create a branch for audio work

svn path=/branches/audio-bringup/; revision=49478

lib/sdk/crt/process/_system.c

@@ -0,0 +1,124 @@
+/* $Id$
+ *
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/msvcrt/process/system.c
+ * PURPOSE:     Excutes a shell command
+ * PROGRAMER:   Ariadne
+ * UPDATE HISTORY:
+ *              04/03/99: Created
+ */
+
+#include <precomp.h>
+#include <stdlib.h>
+#include <string.h>
+#include <process.h>
+
+
+/*
+ * @implemented
+ */
+int system(const char *command)
+{
+  char *szCmdLine = NULL;
+  char *szComSpec = NULL;
+
+  PROCESS_INFORMATION ProcessInformation;
+  STARTUPINFOA StartupInfo;
+  char *s;
+  BOOL result;
+
+  int nStatus;
+
+  szComSpec = getenv("COMSPEC");
+
+// system should return 0 if command is null and the shell is found
+
+  if (command == NULL) {
+    if (szComSpec == NULL)
+      return 0;
+    else
+      return 1;
+  }
+
+  if (szComSpec == NULL)
+    return -1;
+
+// should return 127 or 0 ( MS ) if the shell is not found
+// __set_errno(ENOENT);
+
+  if (szComSpec == NULL)
+  {
+    szComSpec = "cmd.exe";
+  }
+
+  /* split the path from shell command */
+  s = max(strrchr(szComSpec, '\\'), strrchr(szComSpec, '/'));
+  if (s == NULL)
+    s = szComSpec;
+  else
+    s++;
+
+  szCmdLine = malloc(strlen(s) + 4 + strlen(command) + 1);
+  if (szCmdLine == NULL)
+  {
+     __set_errno(ENOMEM);
+     return -1;
+  }
+
+  strcpy(szCmdLine, s);
+  s = strrchr(szCmdLine, '.');
+  if (s)
+    *s = 0;
+  strcat(szCmdLine, " /C ");
+  strcat(szCmdLine, command);
+
+//command file has invalid format ENOEXEC
+
+  memset (&StartupInfo, 0, sizeof(StartupInfo));
+  StartupInfo.cb = sizeof(StartupInfo);
+  StartupInfo.lpReserved= NULL;
+  StartupInfo.dwFlags = STARTF_USESHOWWINDOW;
+  StartupInfo.wShowWindow = SW_SHOWDEFAULT;
+  StartupInfo.lpReserved2 = NULL;
+  StartupInfo.cbReserved2 = 0;
+
+// According to ansi standards the new process should ignore  SIGINT and SIGQUIT
+// In order to disable ctr-c the process is created with CREATE_NEW_PROCESS_GROUP,
+// thus SetConsoleCtrlHandler(NULL,TRUE) is made on behalf of the new process.
+
+
+//SIGCHILD should be blocked aswell
+
+  result = CreateProcessA(szComSpec,
+	                  szCmdLine,
+			  NULL,
+			  NULL,
+			  TRUE,
+			  CREATE_NEW_PROCESS_GROUP,
+			  NULL,
+			  NULL,
+			  &StartupInfo,
+			  &ProcessInformation);
+  free(szCmdLine);
+
+  if (result == FALSE)
+  {
+	_dosmaperr(GetLastError());
+     return -1;
+  }
+
+  CloseHandle(ProcessInformation.hThread);
+
+// system should wait untill the calling process is finished
+  _cwait(&nStatus,(intptr_t)ProcessInformation.hProcess,0);
+  CloseHandle(ProcessInformation.hProcess);
+
+  return nStatus;
+}
+
+int CDECL _wsystem(const wchar_t* cmd)
+{
+    FIXME("_wsystem stub\n");
+    return -1;
+}