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 = False;
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("   -n: client hostname\n");
        STATUS("   -w: desktop width\n");
        STATUS("   -h: desktop height\n");
        STATUS("   -k: keyboard layout (hex)\n");
        STATUS("   -m: send motion events\n");
        STATUS("   -b: force bitmap updates\n");
        STATUS("   -l: do not request licence\n\n");
}

/* Client program */
int main(int argc, char *argv[])
{
        struct passwd *pw;
        char *server;
        char title[32];
        int c;

        STATUS("rdesktop: A Remote Desktop Protocol client.\n");
        STATUS("Version "VERSION". Copyright (C) 1999-2000 Matt Chapman.\n\n");

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