| 2 |
- |
1 |
/* Copyright (C) 2001 Ghostgum Software Pty Ltd. All rights reserved.
|
|
|
2 |
|
|
|
3 |
This software is provided AS-IS with no warranty, either express or
|
|
|
4 |
implied.
|
|
|
5 |
|
|
|
6 |
This software is distributed under license and may not be copied,
|
|
|
7 |
modified or distributed except as expressly authorized under the terms
|
|
|
8 |
of the license contained in the file LICENSE in this distribution.
|
|
|
9 |
|
|
|
10 |
For more information about licensing, please refer to
|
|
|
11 |
http://www.ghostscript.com/licensing/. For information on
|
|
|
12 |
commercial licensing, go to http://www.artifex.com/licensing/ or
|
|
|
13 |
contact Artifex Software, Inc., 101 Lucas Valley Road #110,
|
|
|
14 |
San Rafael, CA 94903, U.S.A., +1(415)492-9861.
|
|
|
15 |
*/
|
|
|
16 |
|
|
|
17 |
/* $Id: dxmainc.c,v 1.10 2004/08/19 21:52:20 ghostgum Exp $ */
|
|
|
18 |
|
|
|
19 |
/* dxmainc.c */
|
|
|
20 |
/*
|
|
|
21 |
* Ghostscript frontend which provides a console to the Ghostscript
|
|
|
22 |
* shared library. Load time linking to libgs.so
|
|
|
23 |
* This does not support the display device. Use dxmain.c/gsx for that,
|
|
|
24 |
* or modify this program to use bare Xlib calls.
|
|
|
25 |
* Compile using
|
|
|
26 |
* gcc -o gsc dxmainc.c -lgs
|
|
|
27 |
*
|
|
|
28 |
* The ghostscript library needs to be compiled with
|
|
|
29 |
* gcc -fPIC -g -c -Wall file.c
|
|
|
30 |
* gcc -shared -Wl,-soname,libgs.so.7 -o libgs.so.7.00 file.o -lc
|
|
|
31 |
*/
|
|
|
32 |
|
|
|
33 |
#include <stdio.h>
|
|
|
34 |
#include <stdlib.h>
|
|
|
35 |
#include <string.h>
|
|
|
36 |
#include <unistd.h>
|
|
|
37 |
#include <fcntl.h>
|
|
|
38 |
#include <errno.h>
|
|
|
39 |
#define __PROTOTYPES__
|
|
|
40 |
#include "ierrors.h"
|
|
|
41 |
#include "iapi.h"
|
|
|
42 |
|
|
|
43 |
const char start_string[] = "systemdict /start get exec\n";
|
|
|
44 |
|
|
|
45 |
static int gsdll_stdin(void *instance, char *buf, int len);
|
|
|
46 |
static int gsdll_stdout(void *instance, const char *str, int len);
|
|
|
47 |
static int gsdll_stdout(void *instance, const char *str, int len);
|
|
|
48 |
|
|
|
49 |
/*********************************************************************/
|
|
|
50 |
/* stdio functions */
|
|
|
51 |
|
|
|
52 |
/* callback for reading stdin */
|
|
|
53 |
/* Use async input */
|
|
|
54 |
static int
|
|
|
55 |
gsdll_stdin(void *instance, char *buf, int len)
|
|
|
56 |
{
|
|
|
57 |
return read(fileno(stdin), buf, len);
|
|
|
58 |
}
|
|
|
59 |
|
|
|
60 |
static int
|
|
|
61 |
gsdll_stdout(void *instance, const char *str, int len)
|
|
|
62 |
{
|
|
|
63 |
fwrite(str, 1, len, stdout);
|
|
|
64 |
fflush(stdout);
|
|
|
65 |
return len;
|
|
|
66 |
}
|
|
|
67 |
|
|
|
68 |
static int
|
|
|
69 |
gsdll_stderr(void *instance, const char *str, int len)
|
|
|
70 |
{
|
|
|
71 |
fwrite(str, 1, len, stderr);
|
|
|
72 |
fflush(stderr);
|
|
|
73 |
return len;
|
|
|
74 |
}
|
|
|
75 |
|
|
|
76 |
/*********************************************************************/
|
|
|
77 |
|
|
|
78 |
int main(int argc, char *argv[])
|
|
|
79 |
{
|
|
|
80 |
int exit_status;
|
|
|
81 |
int code = 1, code1;
|
|
|
82 |
void *instance;
|
|
|
83 |
int exit_code;
|
|
|
84 |
|
|
|
85 |
/* run Ghostscript */
|
|
|
86 |
if ((code = gsapi_new_instance(&instance, NULL)) == 0) {
|
|
|
87 |
gsapi_set_stdio(instance, gsdll_stdin, gsdll_stdout, gsdll_stderr);
|
|
|
88 |
code = gsapi_init_with_args(instance, argc, argv);
|
|
|
89 |
|
|
|
90 |
if (code == 0)
|
|
|
91 |
code = gsapi_run_string(instance, start_string, 0, &exit_code);
|
|
|
92 |
code1 = gsapi_exit(instance);
|
|
|
93 |
if (code == 0 || code == e_Quit)
|
|
|
94 |
code = code1;
|
|
|
95 |
if (code == e_Quit)
|
|
|
96 |
code = 0; /* user executed 'quit' */
|
|
|
97 |
|
|
|
98 |
gsapi_delete_instance(instance);
|
|
|
99 |
}
|
|
|
100 |
|
|
|
101 |
exit_status = 0;
|
|
|
102 |
switch (code) {
|
|
|
103 |
case 0:
|
|
|
104 |
case e_Info:
|
|
|
105 |
case e_Quit:
|
|
|
106 |
break;
|
|
|
107 |
case e_Fatal:
|
|
|
108 |
exit_status = 1;
|
|
|
109 |
break;
|
|
|
110 |
default:
|
|
|
111 |
exit_status = 255;
|
|
|
112 |
}
|
|
|
113 |
|
|
|
114 |
return exit_status;
|
|
|
115 |
}
|
|
|
116 |
|