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/****************************************************************************
* *
* GNAT COMPILER COMPONENTS *
* *
* A R G V *
* *
* C Implementation File *
* *
* Copyright (C) 1992-2012, 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"
#ifdef __cplusplus
extern "C" {
#endif
/* 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]));
}
#ifdef __cplusplus
}
#endif
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