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+/****************************************************************************
+ * *
+ * GNAT COMPILER COMPONENTS *
+ * *
+ * A R G V *
+ * *
+ * C Implementation File *
+ * *
+ * Copyright (C) 1992-2009, Free Software Foundation, Inc. *
+ * *
+ * GNAT is free software; you can redistribute it and/or modify it under *
+ * terms of the GNU General Public License as published by the Free Soft- *
+ * ware Foundation; either version 3, or (at your option) any later ver- *
+ * sion. GNAT is distributed in the hope that it will be useful, but WITH- *
+ * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
+ * or FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * As a special exception under Section 7 of GPL version 3, you are granted *
+ * additional permissions described in the GCC Runtime Library Exception, *
+ * version 3.1, as published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License and *
+ * a copy of the GCC Runtime Library Exception along with this program; *
+ * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see *
+ * <http://www.gnu.org/licenses/>. *
+ * *
+ * GNAT was originally developed by the GNAT team at New York University. *
+ * Extensive contributions were provided by Ada Core Technologies Inc. *
+ * *
+ ****************************************************************************/
+
+/* Routines for accessing command line arguments from both the runtime
+ library and from the compiler itself. In the former case, gnat_argc
+ and gnat_argv are the original argc and argv values as stored by the
+ binder generated main program, and these routines are accessed from
+ the Ada.Command_Line package. In the compiler case, gnat_argc and
+ gnat_argv are the values as modified by toplev, and these routines
+ are accessed from the Osint package. */
+
+/* Also routines for accessing the environment from the runtime library.
+ Gnat_envp is the original envp value as stored by the binder generated
+ main program, and these routines are accessed from the
+ Ada.Command_Line.Environment package. */
+
+#ifdef IN_RTS
+#include "tconfig.h"
+#include "tsystem.h"
+#include <sys/stat.h>
+#else
+#include "config.h"
+#include "system.h"
+#endif
+
+#include "adaint.h"
+
+/* argc and argv of the main program are saved under gnat_argc and gnat_argv,
+ envp of the main program is saved under gnat_envp. */
+
+int gnat_argc = 0;
+const char **gnat_argv = (const char **) 0;
+const char **gnat_envp = (const char **) 0;
+
+#if defined (_WIN32) && !defined (RTX)
+/* Note that on Windows environment the environ point to a buffer that could
+ be reallocated if needed. It means that gnat_envp needs to be updated
+ before using gnat_envp to point to the right environment space */
+#include <stdlib.h>
+/* for the environ variable definition */
+#define gnat_envp (environ)
+#endif
+
+int
+__gnat_arg_count (void)
+{
+ return gnat_argc;
+}
+
+int
+__gnat_len_arg (int arg_num)
+{
+ if (gnat_argv != NULL)
+ return strlen (gnat_argv[arg_num]);
+ else
+ return 0;
+}
+
+void
+__gnat_fill_arg (char *a, int i)
+{
+ if (gnat_argv != NULL)
+ strncpy (a, gnat_argv[i], strlen(gnat_argv[i]));
+}
+
+int
+__gnat_env_count (void)
+{
+ int i;
+
+ for (i = 0; gnat_envp[i]; i++)
+ ;
+ return i;
+}
+
+int
+__gnat_len_env (int env_num)
+{
+ if (gnat_envp != NULL)
+ return strlen (gnat_envp[env_num]);
+ else
+ return 0;
+}
+
+void
+__gnat_fill_env (char *a, int i)
+{
+ if (gnat_envp != NULL)
+ strncpy (a, gnat_envp[i], strlen (gnat_envp[i]));
+}