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;

        *data = NULL;

        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 4: renaming of item old name and then new name */
                /*case 3: delete item name */
                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?

                        //
                        // your name and the "users choice" of printer driver
                        // my guess is that you can store it and automagically reconnect
                        // the printer with correct driver next time.
                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	*data = NULL;
83
84	home = getenv("HOME");
85	if (home == NULL)
86	return 0;
87
88	path = (char *) xmalloc(strlen(home) + sizeof("/.rdesktop/rdpdr/") + strlen(printer_name) +
89	sizeof("/AutoPrinterCacheData"));
90	sprintf(path, "%s/.rdesktop/rdpdr/%s/AutoPrinterCacheData", home, printer_name);
91
92	fd = open(path, O_RDONLY);
93	if (fd == -1)
94	return 0;
95
96	if (fstat(fd, &st))
97	return 0;
98
99	data = (uint8 ) xmalloc(st.st_size);
100	length = read(fd, *data, st.st_size);
101	close(fd);
102	xfree(path);
103	return length;
104	}
105
106	void
107	printercache_save_blob(char printer_name, uint8 data, uint32 length)
108	{
109	char home, path;
110	int fd;
111
112	if (printer_name == NULL)
113	return;
114
115	home = getenv("HOME");
116	if (home == NULL)
117	return;
118
119	if (!printercache_mkdir(home, printer_name))
120	return;
121
122	path = (char *) xmalloc(strlen(home) + sizeof("/.rdesktop/rdpdr/") + strlen(printer_name) +
123	sizeof("/AutoPrinterCacheData"));
124	sprintf(path, "%s/.rdesktop/rdpdr/%s/AutoPrinterCacheData", home, printer_name);
125
126	fd = open(path, O_WRONLY \| O_CREAT \| O_TRUNC, 0600);
127	if (fd == -1)
128	{
129	perror(path);
130	return;
131	}
132
133	if (write(fd, data, length) != length)
134	{
135	perror(path);
136	unlink(path);
137	}
138
139	close(fd);
140	xfree(path);
141	}
142
143	void
144	printercache_process(STREAM s)
145	{
146	uint32 type, printer_length, driver_length, printer_unicode_length, blob_length;
147	char device_name[9], printer[256], driver[256];
148
149	in_uint32_le(s, type);
150	switch (type)
151	{
152	/case 4: renaming of item old name and then new name /
153	/case 3: delete item name /
154	case 2:
155	in_uint32_le(s, printer_unicode_length);
156	in_uint32_le(s, blob_length);
157
158	if (printer_unicode_length < 2 * 255)
159	{
160	rdp_in_unistr(s, printer, printer_unicode_length);
161	printercache_save_blob(printer, s->p, blob_length);
162	}
163	break;
164
165	/case 1: /
166	// TODO: I think this one just tells us what printer is on LPT? but why?
167
168	//
169	// your name and the "users choice" of printer driver
170	// my guess is that you can store it and automagically reconnect
171	// the printer with correct driver next time.
172	default:
173
174	unimpl("RDPDR Printer Cache Packet Type: %d\n", type);
175	break;
176	}
177	}