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1 /****************************************************************************
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2 * *
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3 * GNAT RUN-TIME COMPONENTS *
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4 * *
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5 * A - T R A N S *
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6 * *
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7 * C Implementation File *
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8 * *
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131
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9 * Copyright (C) 1992-2018, Free Software Foundation, Inc. *
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111
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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 #include <stdio.h>
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33
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34 #ifdef IN_RTS
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35 #include "tconfig.h"
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36 #include "tsystem.h"
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37 #else
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38 #include "config.h"
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39 #include "system.h"
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40 #endif
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41
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42 /* Don't use macros versions of this functions on VxWorks since they cause
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43 imcompatible changes in some VxWorks versions */
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44 #ifdef __vxworks
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45 #undef getchar
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46 #undef putchar
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47 #undef feof
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48 #undef ferror
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49 #undef fileno
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50 #endif
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51
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52 /* Function wrappers are needed to access the values from Ada which are
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53 defined as C macros. */
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54
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55 FILE *c_stdin (void);
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56 FILE *c_stdout (void);
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57 FILE *c_stderr (void);
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58 int seek_set_function (void);
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59 int seek_end_function (void);
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60 void *null_function (void);
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61 int c_fileno (FILE *);
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62
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63 FILE *
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64 c_stdin (void)
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65 {
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66 return stdin;
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67 }
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68
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69 FILE *
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70 c_stdout (void)
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71 {
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72 return stdout;
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73 }
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74
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75 FILE *
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76 c_stderr (void)
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77 {
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78 return stderr;
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79 }
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80
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81 #ifndef SEEK_SET /* Symbolic constants for the "fseek" function: */
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82 #define SEEK_SET 0 /* Set file pointer to offset */
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83 #define SEEK_CUR 1 /* Set file pointer to its current value plus offset */
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84 #define SEEK_END 2 /* Set file pointer to the size of the file plus offset */
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85 #endif
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86
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87 int
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88 seek_set_function (void)
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89 {
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90 return SEEK_SET;
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91 }
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92
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93 int
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94 seek_end_function (void)
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95 {
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96 return SEEK_END;
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97 }
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98
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99 void *null_function (void)
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100 {
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101 return NULL;
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102 }
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103
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104 int
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105 c_fileno (FILE *s)
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106 {
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107 return fileno (s);
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108 }
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