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