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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/* Copyright (C) 2001-2020 Artifex Software, Inc.
All Rights Reserved.
This software is provided AS-IS with no warranty, either express or
implied.
This software is distributed under license and may not be copied,
modified or distributed except as expressly authorized under the terms
of the license contained in the file LICENSE in this distribution.
Refer to licensing information at http://www.artifex.com or contact
Artifex Software, Inc., 1305 Grant Avenue - Suite 200, Novato,
CA 94945, U.S.A., +1(415)492-9861, for further information.
*/
/* (Level 2) IODevice operators */
#include "string_.h"
#include "ghost.h"
#include "gp.h"
#include "oper.h"
#include "stream.h"
#include "gxiodev.h"
#include "dstack.h" /* for systemdict */
#include "files.h" /* for file_open_stream */
#include "iparam.h"
#include "iutil2.h"
#include "store.h"
/* ------ %null% ------ */
/* This represents the null output file. */
static iodev_proc_open_device(null_open);
const gx_io_device gs_iodev_null = {
"%null%", "Special",
{
iodev_no_init, iodev_no_finit, null_open, iodev_no_open_file,
iodev_os_gp_fopen, iodev_os_fclose,
iodev_no_delete_file, iodev_no_rename_file, iodev_no_file_status,
iodev_no_enumerate_files, NULL, NULL,
iodev_no_get_params, iodev_no_put_params
},
NULL,
NULL
};
static int
null_open(gx_io_device * iodev, const char *access, stream ** ps,
gs_memory_t * mem)
{
if (!streq1(access, 'w'))
return_error(gs_error_invalidfileaccess);
return file_open_stream(gp_null_file_name,
strlen(gp_null_file_name),
access, 256 /* arbitrary */ , ps,
iodev, iodev->procs.gp_fopen, mem);
}
/* ------ Operators ------ */
/* <iodevice> .getdevparams <mark> <name> <value> ... */
static int
zgetdevparams(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
gx_io_device *iodev;
stack_param_list list;
gs_param_list *const plist = (gs_param_list *) & list;
int code;
ref *pmark;
check_read_type(*op, t_string);
iodev = gs_findiodevice(imemory, op->value.bytes, r_size(op));
if (iodev == 0)
return_error(gs_error_undefined);
stack_param_list_write(&list, &o_stack, NULL, iimemory);
if ((code = gs_getdevparams(iodev, plist)) < 0) {
ref_stack_pop(&o_stack, list.count * 2);
return code;
}
pmark = ref_stack_index(&o_stack, list.count * 2);
make_mark(pmark);
return 0;
}
/* <mark> <name> <value> ... <iodevice> .putdevparams */
static int
zputdevparams(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
gx_io_device *iodev;
stack_param_list list;
gs_param_list *const plist = (gs_param_list *) & list;
int code;
password system_params_password;
check_read_type(*op, t_string);
iodev = gs_findiodevice(imemory, op->value.bytes, r_size(op));
if (iodev == 0)
return_error(gs_error_undefined);
code = stack_param_list_read(&list, &o_stack, 1, NULL, false, iimemory);
if (code < 0)
return code;
code = dict_read_password(&system_params_password, systemdict,
"SystemParamsPassword");
if (code < 0)
return code;
code = param_check_password(plist, &system_params_password);
if (code != 0) {
iparam_list_release(&list);
return_error(code < 0 ? code : gs_error_invalidaccess);
}
code = gs_putdevparams(iodev, plist);
iparam_list_release(&list);
if (code < 0)
return code;
ref_stack_pop(&o_stack, list.count * 2 + 2);
return 0;
}
/* ------ Initialization procedure ------ */
const op_def ziodev2_l2_op_defs[] =
{
op_def_begin_level2(),
{"1.getdevparams", zgetdevparams},
{"2.putdevparams", zputdevparams},
op_def_end(0)
};
|
GitWeb