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1 /****************************************************************************
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2 * *
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3 * GNAT COMPILER COMPONENTS *
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4 * *
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5 * A R G V *
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6 * *
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7 * C Implementation File *
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8 * *
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9 * Copyright (C) 1992-2018, Free Software Foundation, Inc. *
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10 * *
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11 * GNAT is free software; you can redistribute it and/or modify it under *
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12 * terms of the GNU General Public License as published by the Free Soft- *
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13 * ware Foundation; either version 3, or (at your option) any later ver- *
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14 * sion. GNAT is distributed in the hope that it will be useful, but WITH- *
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15 * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
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16 * or FITNESS FOR A PARTICULAR PURPOSE. *
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17 * *
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18 * As a special exception under Section 7 of GPL version 3, you are granted *
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19 * additional permissions described in the GCC Runtime Library Exception, *
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20 * version 3.1, as published by the Free Software Foundation. *
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21 * *
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22 * You should have received a copy of the GNU General Public License and *
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23 * a copy of the GCC Runtime Library Exception along with this program; *
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24 * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see *
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25 * <http://www.gnu.org/licenses/>. *
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26 * *
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27 * GNAT was originally developed by the GNAT team at New York University. *
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28 * Extensive contributions were provided by Ada Core Technologies Inc. *
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29 * *
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30 ****************************************************************************/
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31
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32 /* Routines for accessing command line arguments from both the runtime
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33 library and from the compiler itself. In the former case, gnat_argc
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34 and gnat_argv are the original argc and argv values as stored by the
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35 binder generated main program, and these routines are accessed from
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36 the Ada.Command_Line package. In the compiler case, gnat_argc and
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37 gnat_argv are the values as modified by toplev, and these routines
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38 are accessed from the Osint package. */
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39
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40 /* This version is for the ravenscar-cert runtime in LynxOS-178, with
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41 minimal support for Ada.Command_Line.Command_Name */
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42
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43 #include <sys/types.h>
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44 #include <string.h>
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45
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46 #ifdef __cplusplus
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47 extern "C" {
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48 #endif
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49
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50 /* argc and argv of the main program are saved under gnat_argc and gnat_argv,
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51 envp of the main program is saved under gnat_envp.
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52 While gnat_argc and gnat_envp are not needed, they are referenced from
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53 the binder-generated file so they need to be defined here */
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54
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55 int gnat_argc = 0;
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56 const char **gnat_argv = (const char **) 0;
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57 const char **gnat_envp = (const char **) 0;
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58
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59 int
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60 __gnat_len_arg (int arg_num)
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61 {
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62 if (gnat_argv != NULL)
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63 return strlen (gnat_argv[arg_num]);
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64 else
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65 return 0;
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66 }
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67
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68 void
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69 __gnat_fill_arg (char *a, int i)
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70 {
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71 if (gnat_argv != NULL)
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72 strncpy (a, gnat_argv[i], strlen(gnat_argv[i]));
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73 }
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74
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75 #ifdef __cplusplus
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76 }
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77 #endif
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