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