seamlessrdp-branch/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;
        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(NULL); /* 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	/*
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	BOOL motion = True;
36	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	STATUS(" -d: domain\n");
45	STATUS(" -s: shell\n");
46	STATUS(" -c: working directory\n");
47	STATUS(" -p: password (autologon)\n");
48	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	STATUS(" -m: do not send motion events\n");
54	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	uint32 flags;
63	char domain[16];
64	char password[16];
65	char shell[32];
66	char directory[32];
67	char title[32];
68	int c;
69
70	STATUS("rdesktop: A Remote Desktop Protocol client.\n");
71	STATUS("Version "VERSION". Copyright (C) 1999-2000 Matt Chapman.\n");
72	STATUS("See http://www.rdesktop.org/ for more information.\n\n");
73
74	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	{
79	switch (c)
80	{
81	case 'u':
82	strncpy(username, optarg, sizeof(username));
83	break;
84
85	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	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	motion = False;
120	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	if (!rdp_connect(server, flags, domain, password, shell, directory))
167	return 1;
168
169	STATUS("Connection successful.\n");
170
171	strcpy(title, "rdesktop - ");
172	strncat(title, server, sizeof(title));
173
174	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	uint32 r = (uint32 )random;
189	int fd;
190
191	/* If we have a kernel random device, use it. */
192	if ((fd = open("/dev/urandom", O_RDONLY)) != -1)
193	{
194	read(fd, random, 32);
195	close(fd);
196	return;
197	}
198
199	/* Otherwise use whatever entropy we can gather - ideas welcome. */
200	r[0] = (getpid()) \| (getppid() << 16);
201	r[1] = (getuid()) \| (getgid() << 16);
202	r[2] = times(NULL); /* system uptime (clocks) */
203	gettimeofday((struct timeval )&r[3], NULL); / sec and usec */
204	stat("/tmp", &st);
205	r[5] = st.st_atime;
206	r[6] = st.st_mtime;
207	r[7] = st.st_ctime;
208	}
209
210	/* malloc; exit if out of memory */
211	void *xmalloc(int size)
212	{
213	void *mem = malloc(size);
214	if (mem == NULL)
215	{
216	ERROR("xmalloc %d\n", size);
217	exit(1);
218	}
219	return mem;
220	}
221
222	/* realloc; exit if out of memory */
223	void xrealloc(void oldmem, int size)
224	{
225	void *mem = realloc(oldmem, size);
226	if (mem == NULL)
227	{
228	ERROR("xrealloc %d\n", size);
229	exit(1);
230	}
231	return mem;
232	}
233
234	/* free */
235	void xfree(void *mem)
236	{
237	free(mem);
238	}
239
240	/* Produce a hex dump */
241	void hexdump(unsigned char *p, unsigned int len)
242	{
243	unsigned char *line = p;
244	unsigned int thisline, offset = 0;
245	int i;
246
247	while (offset < len)
248	{
249	STATUS("%04x ", offset);
250	thisline = len - offset;
251	if (thisline > 16)
252	thisline = 16;
253
254	for (i = 0; i < thisline; i++)
255	STATUS("%02x ", line[i])
256
257	for (; i < 16; i++)
258	STATUS(" ");
259
260	for (i = 0; i < thisline; i++)
261	STATUS("%c", (line[i] >= 0x20 && line[i] < 0x7f) ? line[i] : '.');
262
263	STATUS("\n");
264	offset += thisline;
265	line += thisline;
266	}
267	}