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1 | /**************************************************************************** |
2 | * * | |
3 | * GNAT RUN-TIME COMPONENTS * | |
4 | * * | |
5 | * A - T R A N S * | |
6 | * * | |
7 | * C Implementation File * | |
8 | * * | |
1d005acc | 9 | * Copyright (C) 1992-2019, Free Software Foundation, Inc. * |
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10 | * * |
11 | * GNAT is free software; you can redistribute it and/or modify it under * | |
12 | * terms of the GNU General Public License as published by the Free Soft- * | |
748086b7 | 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- * |
15 | * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * | |
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16 | * or FITNESS FOR A PARTICULAR PURPOSE. * |
17 | * * | |
18 | * As a special exception under Section 7 of GPL version 3, you are granted * | |
19 | * additional permissions described in the GCC Runtime Library Exception, * | |
20 | * version 3.1, as published by the Free Software Foundation. * | |
21 | * * | |
22 | * You should have received a copy of the GNU General Public License and * | |
23 | * a copy of the GCC Runtime Library Exception along with this program; * | |
24 | * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see * | |
25 | * <http://www.gnu.org/licenses/>. * | |
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26 | * * |
27 | * GNAT was originally developed by the GNAT team at New York University. * | |
1f02b6af | 28 | * Extensive contributions were provided by Ada Core Technologies Inc. * |
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29 | * * |
30 | ****************************************************************************/ | |
31 | ||
32 | #include <stdio.h> | |
33 | ||
a6fc663e | 34 | #ifndef IN_RTS |
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35 | #include "config.h" |
36 | #include "system.h" | |
37 | #endif | |
38 | ||
f5037886 AC |
39 | /* Don't use macros versions of this functions on VxWorks since they cause |
40 | imcompatible changes in some VxWorks versions */ | |
41 | #ifdef __vxworks | |
42 | #undef getchar | |
43 | #undef putchar | |
44 | #undef feof | |
45 | #undef ferror | |
46 | #undef fileno | |
47 | #endif | |
48 | ||
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49 | /* Function wrappers are needed to access the values from Ada which are |
50 | defined as C macros. */ | |
51 | ||
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52 | FILE *c_stdin (void); |
53 | FILE *c_stdout (void); | |
54 | FILE *c_stderr (void); | |
55 | int seek_set_function (void); | |
56 | int seek_end_function (void); | |
57 | void *null_function (void); | |
58 | int c_fileno (FILE *); | |
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59 | |
60 | FILE * | |
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61 | c_stdin (void) |
62 | { | |
63 | return stdin; | |
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64 | } |
65 | ||
66 | FILE * | |
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67 | c_stdout (void) |
68 | { | |
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69 | return stdout; |
70 | } | |
71 | ||
72 | FILE * | |
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73 | c_stderr (void) |
74 | { | |
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75 | return stderr; |
76 | } | |
77 | ||
78 | #ifndef SEEK_SET /* Symbolic constants for the "fseek" function: */ | |
79 | #define SEEK_SET 0 /* Set file pointer to offset */ | |
80 | #define SEEK_CUR 1 /* Set file pointer to its current value plus offset */ | |
81 | #define SEEK_END 2 /* Set file pointer to the size of the file plus offset */ | |
82 | #endif | |
83 | ||
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84 | int |
85 | seek_set_function (void) | |
86 | { | |
87 | return SEEK_SET; | |
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88 | } |
89 | ||
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90 | int |
91 | seek_end_function (void) | |
92 | { | |
93 | return SEEK_END; | |
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94 | } |
95 | ||
12e0c41c AC |
96 | void *null_function (void) |
97 | { | |
98 | return NULL; | |
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99 | } |
100 | ||
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101 | int |
102 | c_fileno (FILE *s) | |
103 | { | |
104 | return fileno (s); | |
43ff4547 | 105 | } |