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a-argv.c
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C/C++ Source or Header
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2000-07-19
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109 lines
/****************************************************************************/
/* */
/* GNAT COMPILER COMPONENTS */
/* */
/* A - A R G V */
/* */
/* C Implementation File */
/* */
/* $Revision: 1.7 $ */
/* */
/* Copyright (C) 1992,1993,1994,1995,1996 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 2, 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. See the GNU General Public License */
/* for more details. You should have received a copy of the GNU General */
/* Public License distributed with GNAT; see file COPYING. If not, write */
/* to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, */
/* MA 02111-1307, USA. */
/* */
/* As a special exception, if you link this file with other files to */
/* produce an executable, this file does not by itself cause the resulting */
/* executable to be covered by the GNU General Public License. This except- */
/* ion does not however invalidate any other reasons why the executable */
/* file might be covered by the GNU Public License. */
/* */
/* GNAT was originally developed by the GNAT team at New York University. */
/* It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). */
/* */
/****************************************************************************/
/* 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. */
#include <string.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;
char **gnat_argv = (char **) 0;
char **gnat_envp = (char **) 0;
int
arg_count ()
{
return gnat_argc;
}
char **
gnat_argval ()
{
return gnat_argv;
}
int
len_arg (arg_num)
int arg_num;
{
return strlen(gnat_argv[arg_num]);
}
int
fill_arg (a, i)
char * a;
int i;
{
strncpy (a, gnat_argv[i], strlen(gnat_argv[i]));
}
int
env_count ()
{
int i;
for (i=0; gnat_envp[i]; i++);
return i;
}
int
len_env (env_num)
int env_num;
{
return strlen(gnat_envp[env_num]);
}
int
fill_env (a, i)
char * a;
int i;
{
strncpy (a, gnat_envp[i], strlen(gnat_envp[i]));
}