trunk/rdesktop/rdesktop.c

/*
   rdesktop: A Remote Desktop Protocol client.
   Entrypoint and utility functions
   Copyright (C) Matthew Chapman 1999-2000
   
   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.
*/

#include <stdlib.h>             /* malloc realloc free */
#include <unistd.h>             /* read close getuid getgid getpid getppid gethostname */
#include <fcntl.h>              /* open */
#include <pwd.h>                /* getpwuid */
#include <sys/stat.h>           /* stat */
#include <sys/time.h>           /* gettimeofday */
#include <sys/times.h>          /* times */
#include "rdesktop.h"

char username[16];
char hostname[16];
int width = 800;
int height = 600;
int keylayout = 0x409;
BOOL bitmap_compression = True;
BOOL motion = True;
BOOL orders = True;
BOOL licence = True;
BOOL use_encryption = True;
BOOL desktop_save = True;
BOOL grab_keyboard = True;
BOOL fullscreen = False;
int private_colormap = False;

/* Display usage information */
static void
usage(char *program)
{
        STATUS("Usage: %s [options] server\n", program);
        STATUS("   -u: user name\n");
        STATUS("   -d: domain\n");
        STATUS("   -s: shell\n");
        STATUS("   -c: working directory\n");
        STATUS("   -p: password (autologon)\n");
        STATUS("   -n: client hostname\n");
        STATUS("   -w: desktop width\n");
        STATUS("   -h: desktop height\n");
        STATUS("   -k: keyboard layout (hex)\n");
        STATUS("   -b: force bitmap updates\n");
        STATUS("   -m: do not send motion events\n");
        STATUS("   -l: do not request licence\n\n");
}

/* Client program */
int
main(int argc, char *argv[])
{
        struct passwd *pw;
        char *server;
        uint32 flags;
        char domain[16];
        char password[16];
        char shell[32];
        char directory[32];
        char title[32];
        int c;

        STATUS("rdesktop: A Remote Desktop Protocol client.\n");
        STATUS("Version " VERSION
               ". Copyright (C) 1999-2000 Matt Chapman.\n");
        STATUS("See http://www.rdesktop.org/ for more information.\n\n");

        flags = RDP_LOGON_NORMAL;
        domain[0] = password[0] = shell[0] = directory[0] = 0;

        while ((c = getopt(argc, argv, "u:d:s:c:p:n:w:h:k:bml?")) != -1)
        {
                switch (c)
                {
                        case 'u':
                                strncpy(username, optarg, sizeof(username));
                                break;

                        case 'd':
                                strncpy(domain, optarg, sizeof(domain));
                                break;

                        case 'p':
                                flags |= RDP_LOGON_AUTO;
                                strncpy(password, optarg, sizeof(password));
                                break;

                        case 's':
                                strncpy(shell, optarg, sizeof(shell));
                                break;

                        case 'c':
                                strncpy(directory, optarg, sizeof(directory));
                                break;

                        case 'n':
                                strncpy(hostname, optarg, sizeof(hostname));
                                break;
                        case 'g':
                                {
                                        char *tgem = 0;
                                        width = strtol(optarg, NULL, 10);
                                        tgem = strchr(optarg, 'x');
                                        if ((tgem == 0) || (strlen(tgem) < 2))
                                        {
                                                ERROR
                                                        ("-g: invalid parameter. Syntax example: -g 1024x768\n");
                                                exit(1);
                                        }
                                        height = strtol(tgem + 1, NULL, 10);
                                }
                                break;

                        case 'k':
                                keylayout = strtol(optarg, NULL, 16);
                                /* keylayout = find_keyb_code(optarg); */
                                if (keylayout == 0)
                                        return 0;
                                break;

                        case 'm':
                                motion = False;
                                break;

                        case 'b':
                                orders = False;
                                break;

                        case 'l':
                                licence = False;
                                break;

                        case 'e':
                                use_encryption = False;
                                break;
                        case 'K':
                                grab_keyboard = False;
                                break;
                        case 'F':
                                fullscreen = True;
                                break;
                        case 'v':
                                private_colormap = True;
                                break;
                        case 'h':
                        case '?':
                        default:
                                usage(argv[0]);
                                return 1;
                }
        }

        if (argc - optind < 1)
        {
                usage(argv[0]);
                return 1;
        }

        server = argv[optind];

        if (username[0] == 0)
        {
                pw = getpwuid(getuid());
                if ((pw == NULL) || (pw->pw_name == NULL))
                {
                        STATUS("Could not determine user name.\n");
                        return 1;
                }

                strncpy(username, pw->pw_name, sizeof(username));
        }

        if (hostname[0] == 0)
        {
                if (gethostname(hostname, sizeof(hostname)) == -1)
                {
                        STATUS("Could not determine host name.\n");
                        return 1;
                }
        }

        strcpy(title, "rdesktop - ");
        strncat(title, server, sizeof(title));

        if (ui_create_window(title))
        {
                if (!rdp_connect(server, flags, domain, password, shell,
                                 directory))
                        return 1;

                STATUS("Connection successful.\n");
                rdp_main_loop();
                ui_destroy_window();
        }

        rdp_disconnect();
        return 0;
}

/* Generate a 32-byte random for the secure transport code. */
void
generate_random(uint8 *random)
{
        struct stat st;
        struct tms tmsbuf;
        uint32 *r = (uint32 *) random;
        int fd;

        /* If we have a kernel random device, use it. */
        if ((fd = open("/dev/urandom", O_RDONLY)) != -1)
        {
                read(fd, random, 32);
                close(fd);
                return;
        }

        /* Otherwise use whatever entropy we can gather - ideas welcome. */
        r[0] = (getpid()) | (getppid() << 16);
        r[1] = (getuid()) | (getgid() << 16);
        r[2] = times(&tmsbuf);  /* system uptime (clocks) */
        gettimeofday((struct timeval *) &r[3], NULL);   /* sec and usec */
        stat("/tmp", &st);
        r[5] = st.st_atime;
        r[6] = st.st_mtime;
        r[7] = st.st_ctime;
}

/* malloc; exit if out of memory */
void *
xmalloc(int size)
{
        void *mem = malloc(size);
        if (mem == NULL)
        {
                ERROR("xmalloc %d\n", size);
                exit(1);
        }
        return mem;
}

/* realloc; exit if out of memory */
void *
xrealloc(void *oldmem, int size)
{
        void *mem = realloc(oldmem, size);
        if (mem == NULL)
        {
                ERROR("xrealloc %d\n", size);
                exit(1);
        }
        return mem;
}

/* free */
void
xfree(void *mem)
{
        free(mem);
}

/* Produce a hex dump */
void
hexdump(unsigned char *p, unsigned int len)
{
        unsigned char *line = p;
        unsigned int thisline, offset = 0;
        int i;

        while (offset < len)
        {
                STATUS("%04x ", offset);
                thisline = len - offset;
                if (thisline > 16)
                        thisline = 16;

                for (i = 0; i < thisline; i++)
                        STATUS("%02x ", line[i]) for (; i < 16; i++)
                                STATUS("   ");

                for (i = 0; i < thisline; i++)
                        STATUS("%c",
                               (line[i] >= 0x20
                                && line[i] < 0x7f) ? line[i] : '.');

                STATUS("\n");
                offset += thisline;
                line += thisline;
        }
}
1	matty	10	/*
2			rdesktop: A Remote Desktop Protocol client.
3			Entrypoint and utility functions
4			Copyright (C) Matthew Chapman 1999-2000
5
6			This program is free software; you can redistribute it and/or modify
7			it under the terms of the GNU General Public License as published by
8			the Free Software Foundation; either version 2 of the License, or
9			(at your option) any later version.
10
11			This program is distributed in the hope that it will be useful,
12			but WITHOUT ANY WARRANTY; without even the implied warranty of
13			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			GNU General Public License for more details.
15
16			You should have received a copy of the GNU General Public License
17			along with this program; if not, write to the Free Software
18			Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19			*/
20
21	matty	24	#include <stdlib.h> /* malloc realloc free */
22			#include <unistd.h> /* read close getuid getgid getpid getppid gethostname */
23			#include <fcntl.h> /* open */
24			#include <pwd.h> /* getpwuid */
25			#include <sys/stat.h> /* stat */
26			#include <sys/time.h> /* gettimeofday */
27			#include <sys/times.h> /* times */
28	matty	10	#include "rdesktop.h"
29
30			char username[16];
31			char hostname[16];
32			int width = 800;
33			int height = 600;
34			int keylayout = 0x409;
35	matty	28	BOOL bitmap_compression = True;
36	matty	21	BOOL motion = True;
37	matty	10	BOOL orders = True;
38			BOOL licence = True;
39	matty	28	BOOL use_encryption = True;
40			BOOL desktop_save = True;
41			BOOL grab_keyboard = True;
42			BOOL fullscreen = False;
43			int private_colormap = False;
44	matty	10
45			/* Display usage information */
46	matty	25	static void
47			usage(char *program)
48	matty	10	{
49			STATUS("Usage: %s [options] server\n", program);
50			STATUS(" -u: user name\n");
51	matty	21	STATUS(" -d: domain\n");
52			STATUS(" -s: shell\n");
53			STATUS(" -c: working directory\n");
54			STATUS(" -p: password (autologon)\n");
55	matty	10	STATUS(" -n: client hostname\n");
56			STATUS(" -w: desktop width\n");
57			STATUS(" -h: desktop height\n");
58			STATUS(" -k: keyboard layout (hex)\n");
59			STATUS(" -b: force bitmap updates\n");
60	matty	21	STATUS(" -m: do not send motion events\n");
61	matty	10	STATUS(" -l: do not request licence\n\n");
62			}
63
64			/* Client program */
65	matty	25	int
66			main(int argc, char *argv[])
67	matty	10	{
68			struct passwd *pw;
69			char *server;
70	matty	21	uint32 flags;
71			char domain[16];
72			char password[16];
73			char shell[32];
74			char directory[32];
75	matty	10	char title[32];
76			int c;
77
78			STATUS("rdesktop: A Remote Desktop Protocol client.\n");
79	matty	24	STATUS("Version " VERSION
80			". Copyright (C) 1999-2000 Matt Chapman.\n");
81	matty	17	STATUS("See http://www.rdesktop.org/ for more information.\n\n");
82	matty	10
83	matty	21	flags = RDP_LOGON_NORMAL;
84			domain[0] = password[0] = shell[0] = directory[0] = 0;
85
86			while ((c = getopt(argc, argv, "u:d:s:c:p:n:w:h:k:bml?")) != -1)
87	matty	10	{
88			switch (c)
89			{
90			case 'u':
91			strncpy(username, optarg, sizeof(username));
92			break;
93
94	matty	21	case 'd':
95			strncpy(domain, optarg, sizeof(domain));
96			break;
97
98			case 'p':
99			flags \|= RDP_LOGON_AUTO;
100			strncpy(password, optarg, sizeof(password));
101			break;
102
103			case 's':
104			strncpy(shell, optarg, sizeof(shell));
105			break;
106
107			case 'c':
108			strncpy(directory, optarg, sizeof(directory));
109			break;
110
111	matty	10	case 'n':
112			strncpy(hostname, optarg, sizeof(hostname));
113			break;
114	matty	28	case 'g':
115			{
116			char *tgem = 0;
117			width = strtol(optarg, NULL, 10);
118			tgem = strchr(optarg, 'x');
119			if ((tgem == 0) \|\| (strlen(tgem) < 2))
120			{
121			ERROR
122			("-g: invalid parameter. Syntax example: -g 1024x768\n");
123			exit(1);
124			}
125			height = strtol(tgem + 1, NULL, 10);
126			}
127	matty	10	break;
128
129			case 'k':
130			keylayout = strtol(optarg, NULL, 16);
131	matty	28	/* keylayout = find_keyb_code(optarg); */
132			if (keylayout == 0)
133			return 0;
134	matty	10	break;
135
136			case 'm':
137	matty	21	motion = False;
138	matty	10	break;
139
140			case 'b':
141			orders = False;
142			break;
143
144			case 'l':
145			licence = False;
146			break;
147
148	matty	28	case 'e':
149			use_encryption = False;
150			break;
151			case 'K':
152			grab_keyboard = False;
153			break;
154			case 'F':
155			fullscreen = True;
156			break;
157			case 'v':
158			private_colormap = True;
159			break;
160			case 'h':
161	matty	10	case '?':
162			default:
163			usage(argv[0]);
164			return 1;
165			}
166			}
167
168			if (argc - optind < 1)
169			{
170			usage(argv[0]);
171			return 1;
172			}
173
174			server = argv[optind];
175
176			if (username[0] == 0)
177			{
178			pw = getpwuid(getuid());
179			if ((pw == NULL) \|\| (pw->pw_name == NULL))
180			{
181			STATUS("Could not determine user name.\n");
182			return 1;
183			}
184
185			strncpy(username, pw->pw_name, sizeof(username));
186			}
187
188			if (hostname[0] == 0)
189			{
190			if (gethostname(hostname, sizeof(hostname)) == -1)
191			{
192			STATUS("Could not determine host name.\n");
193			return 1;
194			}
195			}
196
197	matty	12	strcpy(title, "rdesktop - ");
198			strncat(title, server, sizeof(title));
199
200	matty	10	if (ui_create_window(title))
201			{
202	matty	28	if (!rdp_connect(server, flags, domain, password, shell,
203			directory))
204			return 1;
205
206			STATUS("Connection successful.\n");
207	matty	10	rdp_main_loop();
208			ui_destroy_window();
209			}
210
211			rdp_disconnect();
212			return 0;
213			}
214
215			/* Generate a 32-byte random for the secure transport code. */
216	matty	25	void
217			generate_random(uint8 *random)
218	matty	10	{
219			struct stat st;
220	matty	22	struct tms tmsbuf;
221	matty	24	uint32 r = (uint32 ) random;
222	matty	10	int fd;
223
224			/* If we have a kernel random device, use it. */
225			if ((fd = open("/dev/urandom", O_RDONLY)) != -1)
226			{
227			read(fd, random, 32);
228			close(fd);
229			return;
230			}
231
232			/* Otherwise use whatever entropy we can gather - ideas welcome. */
233			r[0] = (getpid()) \| (getppid() << 16);
234			r[1] = (getuid()) \| (getgid() << 16);
235	matty	24	r[2] = times(&tmsbuf); /* system uptime (clocks) */
236			gettimeofday((struct timeval ) &r[3], NULL); / sec and usec */
237	matty	10	stat("/tmp", &st);
238			r[5] = st.st_atime;
239			r[6] = st.st_mtime;
240			r[7] = st.st_ctime;
241			}
242
243			/* malloc; exit if out of memory */
244	matty	25	void *
245			xmalloc(int size)
246	matty	10	{
247			void *mem = malloc(size);
248			if (mem == NULL)
249			{
250			ERROR("xmalloc %d\n", size);
251			exit(1);
252			}
253			return mem;
254			}
255
256			/* realloc; exit if out of memory */
257	matty	25	void *
258			xrealloc(void *oldmem, int size)
259	matty	10	{
260			void *mem = realloc(oldmem, size);
261			if (mem == NULL)
262			{
263			ERROR("xrealloc %d\n", size);
264			exit(1);
265			}
266			return mem;
267			}
268
269			/* free */
270	matty	25	void
271			xfree(void *mem)
272	matty	10	{
273			free(mem);
274			}
275
276			/* Produce a hex dump */
277	matty	25	void
278			hexdump(unsigned char *p, unsigned int len)
279	matty	10	{
280			unsigned char *line = p;
281			unsigned int thisline, offset = 0;
282			int i;
283
284			while (offset < len)
285			{
286			STATUS("%04x ", offset);
287			thisline = len - offset;
288			if (thisline > 16)
289			thisline = 16;
290
291			for (i = 0; i < thisline; i++)
292	matty	24	STATUS("%02x ", line[i]) for (; i < 16; i++)
293			STATUS(" ");
294	matty	10
295			for (i = 0; i < thisline; i++)
296	matty	24	STATUS("%c",
297			(line[i] >= 0x20
298			&& line[i] < 0x7f) ? line[i] : '.');
299	matty	10
300			STATUS("\n");
301			offset += thisline;
302			line += thisline;
303			}
304			}