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 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	n-ki	569	/* -- 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	astrand	580	path = (char *) xmalloc(strlen(home) + sizeof("/.rdesktop/rdpdr/") + strlen(printer_name) +
87			sizeof("/AutoPrinterCacheData"));
88	n-ki	569	sprintf(path, "%s/.rdesktop/rdpdr/%s/AutoPrinterCacheData", home, printer_name);
89
90			fd = open(path, O_RDONLY);
91			if (fd == -1)
92			return 0;
93
94			if (fstat(fd, &st))
95			return 0;
96
97			data = (uint8 ) xmalloc(st.st_size);
98			length = read(fd, *data, st.st_size);
99			close(fd);
100			xfree(path);
101			return length;
102			}
103
104			void
105			printercache_save_blob(char printer_name, uint8 data, uint32 length)
106			{
107			char home, path;
108			int fd;
109
110			if (printer_name == NULL)
111			return;
112
113			home = getenv("HOME");
114			if (home == NULL)
115			return;
116
117			if (!printercache_mkdir(home, printer_name))
118			return;
119
120	astrand	580	path = (char *) xmalloc(strlen(home) + sizeof("/.rdesktop/rdpdr/") + strlen(printer_name) +
121			sizeof("/AutoPrinterCacheData"));
122	n-ki	569	sprintf(path, "%s/.rdesktop/rdpdr/%s/AutoPrinterCacheData", home, printer_name);
123
124			fd = open(path, O_WRONLY \| O_CREAT \| O_TRUNC, 0600);
125			if (fd == -1)
126			{
127			perror(path);
128			return;
129			}
130
131			if (write(fd, data, length) != length)
132			{
133			perror(path);
134			unlink(path);
135			}
136
137			close(fd);
138			xfree(path);
139			}
140
141			void
142			printercache_process(STREAM s)
143			{
144			uint32 type, printer_length, driver_length, printer_unicode_length, blob_length;
145			char device_name[9], printer[256], driver[256];
146
147			in_uint32_le(s, type);
148			switch (type)
149			{
150	n-ki	586	/case 4: renaming of item old name and then new name /
151			/case 3: delete item name /
152	n-ki	569	case 2:
153			in_uint32_le(s, printer_unicode_length);
154			in_uint32_le(s, blob_length);
155
156			if (printer_unicode_length < 2 * 255)
157			{
158			rdp_in_unistr(s, printer, printer_unicode_length);
159			printercache_save_blob(printer, s->p, blob_length);
160			}
161			break;
162
163	n-ki	586	/case 1:/
164	n-ki	569	// TODO: I think this one just tells us what printer is on LPT? but why?
165
166	n-ki	586	//
167			// your name and the "users choice" of printer driver
168			// my guess is that you can store it and automagically reconnect
169			// the printer with correct driver next time.
170	n-ki	569	default:
171
172			unimpl("RDPDR Printer Cache Packet Type: %d\n", type);
173			break;
174			}
175			}