1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/* common.c -- Common functions.
*
* Copyright (C) 2013-2021 Artyom V. Poptsov <poptsov.artyom@gmail.com>
*
* This file is part of Guile-SSH.
*
* Guile-SSH is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* Guile-SSH is distributed in the hope that it will be useful, but
* WITHOUT 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
* along with Guile-SSH. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <string.h>
#include <libguile.h>
#include <libssh/libssh.h>
#include "common.h"
/* Convert the SSH constant VALUE to a Scheme symbol */
SCM
gssh_symbol_to_scm (const gssh_symbol_t *types, int value)
{
const gssh_symbol_t *t;
for (t = types; t->symbol; ++t)
{
if (t->value == value)
return scm_from_locale_symbol (t->symbol);
}
return SCM_BOOL_F;
}
/* Convert the Scheme symbol VALUE to a SSH constant.
Return the apropriate structure that contains the needed
constant. */
const gssh_symbol_t *
gssh_symbol_from_scm (const gssh_symbol_t *types, SCM value)
{
const gssh_symbol_t *t;
char *sym = scm_to_locale_string (scm_symbol_to_string (value));
for (t = types; t->symbol; ++t)
{
if (! strcmp (t->symbol, sym))
return t;
}
return NULL;
}
/* Return an address of the object OBJ as an hexadecimal number represented as
a string. */
SCM
_scm_object_hex_address (SCM obj)
{
return scm_number_to_string (scm_object_address (obj), scm_from_uint (16U));
}
void
set_smob_callbacks(scm_t_bits tag,
gc_mark_callback_t mark_cb,
gc_free_callback_t free_cb,
gc_equalp_callback_t equalp_cb,
gc_print_callback_t print_cb)
{
scm_set_smob_mark(tag, mark_cb);
scm_set_smob_free(tag, free_cb);
scm_set_smob_print(tag, print_cb);
scm_set_smob_equalp(tag, equalp_cb);
}
/** Procedure that converts an SCM object to an Guile-UDev structure
* pointer.
*/
SCM compare_objects(SCM x1, SCM x2, converter_t converter)
{
void* d1 = converter(x1);
void* d2 = converter(x2);
if ((! d1) || (! d2)) {
return SCM_BOOL_F;
} else if (d1 != d2) {
return SCM_BOOL_F;
} else {
return SCM_BOOL_T;
}
}
/* common.c ends here. */
|
