| /**************************************************************************** |
| * * |
| * 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 |