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 motion = True;
BOOL orders = True;
BOOL licence = True;

/* 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 'w':
                                width = strtol(optarg, NULL, 10);
                                break;

                        case 'h':
                                height = strtol(optarg, NULL, 10);
                                break;

                        case 'k':
                                keylayout = strtol(optarg, NULL, 16);
                                break;

                        case 'm':
                                motion = False;
                                break;

                        case 'b':
                                orders = False;
                                break;

                        case 'l':
                                licence = False;
                                break;

                        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;
                }
        }

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

        STATUS("Connection successful.\n");

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

        if (ui_create_window(title))
        {
                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	21	BOOL motion = True;
36	matty	10	BOOL orders = True;
37			BOOL licence = True;
38
39			/* Display usage information */
40	matty	25	static void
41			usage(char *program)
42	matty	10	{
43			STATUS("Usage: %s [options] server\n", program);
44			STATUS(" -u: user name\n");
45	matty	21	STATUS(" -d: domain\n");
46			STATUS(" -s: shell\n");
47			STATUS(" -c: working directory\n");
48			STATUS(" -p: password (autologon)\n");
49	matty	10	STATUS(" -n: client hostname\n");
50			STATUS(" -w: desktop width\n");
51			STATUS(" -h: desktop height\n");
52			STATUS(" -k: keyboard layout (hex)\n");
53			STATUS(" -b: force bitmap updates\n");
54	matty	21	STATUS(" -m: do not send motion events\n");
55	matty	10	STATUS(" -l: do not request licence\n\n");
56			}
57
58			/* Client program */
59	matty	25	int
60			main(int argc, char *argv[])
61	matty	10	{
62			struct passwd *pw;
63			char *server;
64	matty	21	uint32 flags;
65			char domain[16];
66			char password[16];
67			char shell[32];
68			char directory[32];
69	matty	10	char title[32];
70			int c;
71
72			STATUS("rdesktop: A Remote Desktop Protocol client.\n");
73	matty	24	STATUS("Version " VERSION
74			". Copyright (C) 1999-2000 Matt Chapman.\n");
75	matty	17	STATUS("See http://www.rdesktop.org/ for more information.\n\n");
76	matty	10
77	matty	21	flags = RDP_LOGON_NORMAL;
78			domain[0] = password[0] = shell[0] = directory[0] = 0;
79
80			while ((c = getopt(argc, argv, "u:d:s:c:p:n:w:h:k:bml?")) != -1)
81	matty	10	{
82			switch (c)
83			{
84			case 'u':
85			strncpy(username, optarg, sizeof(username));
86			break;
87
88	matty	21	case 'd':
89			strncpy(domain, optarg, sizeof(domain));
90			break;
91
92			case 'p':
93			flags \|= RDP_LOGON_AUTO;
94			strncpy(password, optarg, sizeof(password));
95			break;
96
97			case 's':
98			strncpy(shell, optarg, sizeof(shell));
99			break;
100
101			case 'c':
102			strncpy(directory, optarg, sizeof(directory));
103			break;
104
105	matty	10	case 'n':
106			strncpy(hostname, optarg, sizeof(hostname));
107			break;
108
109			case 'w':
110			width = strtol(optarg, NULL, 10);
111			break;
112
113			case 'h':
114			height = strtol(optarg, NULL, 10);
115			break;
116
117			case 'k':
118			keylayout = strtol(optarg, NULL, 16);
119			break;
120
121			case 'm':
122	matty	21	motion = False;
123	matty	10	break;
124
125			case 'b':
126			orders = False;
127			break;
128
129			case 'l':
130			licence = False;
131			break;
132
133			case '?':
134			default:
135			usage(argv[0]);
136			return 1;
137			}
138			}
139
140			if (argc - optind < 1)
141			{
142			usage(argv[0]);
143			return 1;
144			}
145
146			server = argv[optind];
147
148			if (username[0] == 0)
149			{
150			pw = getpwuid(getuid());
151			if ((pw == NULL) \|\| (pw->pw_name == NULL))
152			{
153			STATUS("Could not determine user name.\n");
154			return 1;
155			}
156
157			strncpy(username, pw->pw_name, sizeof(username));
158			}
159
160			if (hostname[0] == 0)
161			{
162			if (gethostname(hostname, sizeof(hostname)) == -1)
163			{
164			STATUS("Could not determine host name.\n");
165			return 1;
166			}
167			}
168
169	matty	21	if (!rdp_connect(server, flags, domain, password, shell, directory))
170	matty	10	return 1;
171
172			STATUS("Connection successful.\n");
173
174	matty	12	strcpy(title, "rdesktop - ");
175			strncat(title, server, sizeof(title));
176
177	matty	10	if (ui_create_window(title))
178			{
179			rdp_main_loop();
180			ui_destroy_window();
181			}
182
183			rdp_disconnect();
184			return 0;
185			}
186
187			/* Generate a 32-byte random for the secure transport code. */
188	matty	25	void
189			generate_random(uint8 *random)
190	matty	10	{
191			struct stat st;
192	matty	22	struct tms tmsbuf;
193	matty	24	uint32 r = (uint32 ) random;
194	matty	10	int fd;
195
196			/* If we have a kernel random device, use it. */
197			if ((fd = open("/dev/urandom", O_RDONLY)) != -1)
198			{
199			read(fd, random, 32);
200			close(fd);
201			return;
202			}
203
204			/* Otherwise use whatever entropy we can gather - ideas welcome. */
205			r[0] = (getpid()) \| (getppid() << 16);
206			r[1] = (getuid()) \| (getgid() << 16);
207	matty	24	r[2] = times(&tmsbuf); /* system uptime (clocks) */
208			gettimeofday((struct timeval ) &r[3], NULL); / sec and usec */
209	matty	10	stat("/tmp", &st);
210			r[5] = st.st_atime;
211			r[6] = st.st_mtime;
212			r[7] = st.st_ctime;
213			}
214
215			/* malloc; exit if out of memory */
216	matty	25	void *
217			xmalloc(int size)
218	matty	10	{
219			void *mem = malloc(size);
220			if (mem == NULL)
221			{
222			ERROR("xmalloc %d\n", size);
223			exit(1);
224			}
225			return mem;
226			}
227
228			/* realloc; exit if out of memory */
229	matty	25	void *
230			xrealloc(void *oldmem, int size)
231	matty	10	{
232			void *mem = realloc(oldmem, size);
233			if (mem == NULL)
234			{
235			ERROR("xrealloc %d\n", size);
236			exit(1);
237			}
238			return mem;
239			}
240
241			/* free */
242	matty	25	void
243			xfree(void *mem)
244	matty	10	{
245			free(mem);
246			}
247
248			/* Produce a hex dump */
249	matty	25	void
250			hexdump(unsigned char *p, unsigned int len)
251	matty	10	{
252			unsigned char *line = p;
253			unsigned int thisline, offset = 0;
254			int i;
255
256			while (offset < len)
257			{
258			STATUS("%04x ", offset);
259			thisline = len - offset;
260			if (thisline > 16)
261			thisline = 16;
262
263			for (i = 0; i < thisline; i++)
264	matty	24	STATUS("%02x ", line[i]) for (; i < 16; i++)
265			STATUS(" ");
266	matty	10
267			for (i = 0; i < thisline; i++)
268	matty	24	STATUS("%c",
269			(line[i] >= 0x20
270			&& line[i] < 0x7f) ? line[i] : '.');
271	matty	10
272			STATUS("\n");
273			offset += thisline;
274			line += thisline;
275			}
276			}