trunk/rdesktop/printercache.c

/* -*- c-basic-offset: 8 -*-
 * rdesktop: A Remote Desktop Protocol client.
 * Entrypoint and utility functions
 * Copyright (C) Matthew Chapman 1999-2003
 * Copyright (C) Jeroen Meijer 2003
 *
 * This program 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 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/* According to the W2K RDP Printer Redirection WhitePaper, a data
 * blob is sent to the client after the configuration of the printer
 * is changed at the server.
 *
 * This data blob is saved to the registry. The client returns this
 * data blob in a new session with the printer announce data.
 * The data is not interpreted by the client.
 */

#include <sys/stat.h>
#include <sys/types.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include "rdesktop.h"

BOOL
printercache_mkdir(char *base, char *printer)
{
        char *path;

        path = (char *) xmalloc(strlen(base) + sizeof("/.rdesktop/rdpdr/") + strlen(printer));

        sprintf(path, "%s/.rdesktop", base);
        if ((mkdir(path, 0700) == -1) && errno != EEXIST)
        {
                perror(path);
                return False;
        }

        strcat(path, "/rdpdr");
        if ((mkdir(path, 0700) == -1) && errno != EEXIST)
        {
                perror(path);
                return False;
        }

        strcat(path, "/");
        strcat(path, printer);
        if ((mkdir(path, 0700) == -1) && errno != EEXIST)
        {
                perror(path);
                return False;
        }

        xfree(path);
        return True;
}

int
printercache_load_blob(char *printer_name, uint8 ** data)
{
        char *home, *path;
        struct stat st;
        int fd, length;

        if (printer_name == NULL)
                return 0;

        home = getenv("HOME");
        if (home == NULL)
                return 0;

        path = (char *) xmalloc(strlen(home) + sizeof("/.rdesktop/rdpdr/") + strlen(printer_name) + sizeof("/AutoPrinterCacheData"));
        sprintf(path, "%s/.rdesktop/rdpdr/%s/AutoPrinterCacheData", home, printer_name);

        fd = open(path, O_RDONLY);
        if (fd == -1)
                return 0;

        if (fstat(fd, &st))
                return 0;

        *data = (uint8 *) xmalloc(st.st_size);
        length = read(fd, *data, st.st_size);
        close(fd);
        xfree(path);
        return length;
}

void
printercache_save_blob(char *printer_name, uint8 * data, uint32 length)
{
        char *home, *path;
        int fd;

        if (printer_name == NULL)
                return;

        home = getenv("HOME");
        if (home == NULL)
                return;

        if (!printercache_mkdir(home, printer_name))
                return;

        path = (char *) xmalloc(strlen(home) + sizeof("/.rdesktop/rdpdr/") + strlen(printer_name) + sizeof("/AutoPrinterCacheData"));
        sprintf(path, "%s/.rdesktop/rdpdr/%s/AutoPrinterCacheData", home, printer_name);

        fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0600);
        if (fd == -1)
        {
                perror(path);
                return;
        }

        if (write(fd, data, length) != length)
        {
                perror(path);
                unlink(path);
        }

        close(fd);
        xfree(path);
}

void
printercache_process(STREAM s)
{
        uint32 type, printer_length, driver_length, printer_unicode_length, blob_length;
        char device_name[9], printer[256], driver[256];

        in_uint32_le(s, type);
        switch (type)
        {
                case 2:

                        in_uint32_le(s, printer_unicode_length);
                        in_uint32_le(s, blob_length);

                        if (printer_unicode_length < 2 * 255)
                        {
                                rdp_in_unistr(s, printer, printer_unicode_length);
                                printercache_save_blob(printer, s->p, blob_length);
                        }
                        break;

                case 1:

                        // TODO: I think this one just tells us what printer is on LPT? but why?

                default:

                        unimpl("RDPDR Printer Cache Packet Type: %d\n", type);
                        break;
        }
}
1	/* -- c-basic-offset: 8 --
2	* rdesktop: A Remote Desktop Protocol client.
3	* Entrypoint and utility functions
4	* Copyright (C) Matthew Chapman 1999-2003
5	* Copyright (C) Jeroen Meijer 2003
6	*
7	* This program is free software; you can redistribute it and/or modify
8	* it under the terms of the GNU General Public License as published by
9	* the Free Software Foundation; either version 2 of the License, or
10	* (at your option) any later version.
11	*
12	* This program is distributed in the hope that it will be useful,
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	* GNU General Public License for more details.
16	*
17	* You should have received a copy of the GNU General Public License
18	* along with this program; if not, write to the Free Software
19	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20	*/
21
22	/* According to the W2K RDP Printer Redirection WhitePaper, a data
23	* blob is sent to the client after the configuration of the printer
24	* is changed at the server.
25	*
26	* This data blob is saved to the registry. The client returns this
27	* data blob in a new session with the printer announce data.
28	* The data is not interpreted by the client.
29	*/
30
31	#include <sys/stat.h>
32	#include <sys/types.h>
33	#include <errno.h>
34	#include <fcntl.h>
35	#include <unistd.h>
36	#include <string.h>
37	#include "rdesktop.h"
38
39	BOOL
40	printercache_mkdir(char base, char printer)
41	{
42	char *path;
43
44	path = (char *) xmalloc(strlen(base) + sizeof("/.rdesktop/rdpdr/") + strlen(printer));
45
46	sprintf(path, "%s/.rdesktop", base);
47	if ((mkdir(path, 0700) == -1) && errno != EEXIST)
48	{
49	perror(path);
50	return False;
51	}
52
53	strcat(path, "/rdpdr");
54	if ((mkdir(path, 0700) == -1) && errno != EEXIST)
55	{
56	perror(path);
57	return False;
58	}
59
60	strcat(path, "/");
61	strcat(path, printer);
62	if ((mkdir(path, 0700) == -1) && errno != EEXIST)
63	{
64	perror(path);
65	return False;
66	}
67
68	xfree(path);
69	return True;
70	}
71
72	int
73	printercache_load_blob(char printer_name, uint8 * data)
74	{
75	char home, path;
76	struct stat st;
77	int fd, length;
78
79	if (printer_name == NULL)
80	return 0;
81
82	home = getenv("HOME");
83	if (home == NULL)
84	return 0;
85
86	path = (char *) xmalloc(strlen(home) + sizeof("/.rdesktop/rdpdr/") + strlen(printer_name) + sizeof("/AutoPrinterCacheData"));
87	sprintf(path, "%s/.rdesktop/rdpdr/%s/AutoPrinterCacheData", home, printer_name);
88
89	fd = open(path, O_RDONLY);
90	if (fd == -1)
91	return 0;
92
93	if (fstat(fd, &st))
94	return 0;
95
96	data = (uint8 ) xmalloc(st.st_size);
97	length = read(fd, *data, st.st_size);
98	close(fd);
99	xfree(path);
100	return length;
101	}
102
103	void
104	printercache_save_blob(char printer_name, uint8 data, uint32 length)
105	{
106	char home, path;
107	int fd;
108
109	if (printer_name == NULL)
110	return;
111
112	home = getenv("HOME");
113	if (home == NULL)
114	return;
115
116	if (!printercache_mkdir(home, printer_name))
117	return;
118
119	path = (char *) xmalloc(strlen(home) + sizeof("/.rdesktop/rdpdr/") + strlen(printer_name) + sizeof("/AutoPrinterCacheData"));
120	sprintf(path, "%s/.rdesktop/rdpdr/%s/AutoPrinterCacheData", home, printer_name);
121
122	fd = open(path, O_WRONLY \| O_CREAT \| O_TRUNC, 0600);
123	if (fd == -1)
124	{
125	perror(path);
126	return;
127	}
128
129	if (write(fd, data, length) != length)
130	{
131	perror(path);
132	unlink(path);
133	}
134
135	close(fd);
136	xfree(path);
137	}
138
139	void
140	printercache_process(STREAM s)
141	{
142	uint32 type, printer_length, driver_length, printer_unicode_length, blob_length;
143	char device_name[9], printer[256], driver[256];
144
145	in_uint32_le(s, type);
146	switch (type)
147	{
148	case 2:
149
150	in_uint32_le(s, printer_unicode_length);
151	in_uint32_le(s, blob_length);
152
153	if (printer_unicode_length < 2 * 255)
154	{
155	rdp_in_unistr(s, printer, printer_unicode_length);
156	printercache_save_blob(printer, s->p, blob_length);
157	}
158	break;
159
160	case 1:
161
162	// TODO: I think this one just tells us what printer is on LPT? but why?
163
164	default:
165
166	unimpl("RDPDR Printer Cache Packet Type: %d\n", type);
167	break;
168	}
169	}