trunk/rdesktop/rdesktop.c

/*
   rdesktop: A Remote Desktop Protocol client.
   Entrypoint and utility functions
   Copyright (C) Matthew Chapman 1999-2002

   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 <stdarg.h>             /* va_list va_start va_end */
#include <unistd.h>             /* read close getuid getgid getpid getppid gethostname */
#include <fcntl.h>              /* open */
#include <pwd.h>                /* getpwuid */
#include <limits.h>             /* PATH_MAX */
#include <termios.h>            /* tcgetattr tcsetattr */
#include <sys/stat.h>           /* stat */
#include <sys/time.h>           /* gettimeofday */
#include <sys/times.h>          /* times */
#include "rdesktop.h"

char title[32] = "";
char username[16];
char hostname[16];
char keymapname[16];
int keylayout = 0x409;          /* Defaults to US keyboard layout */
int width = 800;
int height = 600;
int tcp_port_rdp = TCP_PORT_RDP;
BOOL bitmap_compression = True;
BOOL sendmotion = True;
BOOL orders = True;
BOOL licence = True;
BOOL encryption = True;
BOOL desktop_save = True;
BOOL fullscreen = False;
BOOL grab_keyboard = True;

/* Display usage information */
static void
usage(char *program)
{
        fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n");
        fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2002 Matt Chapman.\n");
        fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n");

        fprintf(stderr, "Usage: %s [options] server\n", program);
        fprintf(stderr, "   -u: user name\n");
        fprintf(stderr, "   -d: domain\n");
        fprintf(stderr, "   -s: shell\n");
        fprintf(stderr, "   -c: working directory\n");
        fprintf(stderr, "   -p: password (- to prompt)\n");
        fprintf(stderr, "   -n: client hostname\n");
        fprintf(stderr, "   -k: keyboard layout on terminal server (us,sv,gr etc.)\n");
        fprintf(stderr, "   -g: desktop geometry (WxH)\n");
        fprintf(stderr, "   -f: full-screen mode\n");
        fprintf(stderr, "   -b: force bitmap updates\n");
        fprintf(stderr, "   -e: disable encryption (French TS)\n");
        fprintf(stderr, "   -m: do not send motion events\n");
        fprintf(stderr, "   -l: do not request licence\n");
        fprintf(stderr, "   -t: rdp tcp port\n");
        fprintf(stderr, "   -K: keep window manager key bindings\n");
        fprintf(stderr, "   -w: window title\n");
}

static BOOL
read_password(char *password, int size)
{
        struct termios tios;
        BOOL ret = False;
        int istty = 0;
        char *p;

        if (tcgetattr(STDIN_FILENO, &tios) == 0)
        {
                fprintf(stderr, "Password: ");
                tios.c_lflag &= ~ECHO;
                tcsetattr(STDIN_FILENO, TCSANOW, &tios);
                istty = 1;
        }

        if (fgets(password, size, stdin) != NULL)
        {
                ret = True;

                /* strip final newline */
                p = strchr(password, '\n');
                if (p != NULL)
                        *p = 0;
        }

        if (istty)
        {
                tios.c_lflag |= ECHO;
                tcsetattr(STDIN_FILENO, TCSANOW, &tios);
                fprintf(stderr, "\n");
        }

        return ret;
}

/* Client program */
int
main(int argc, char *argv[])
{
        char fullhostname[64];
        char domain[16];
        char password[16];
        char shell[32];
        char directory[32];
        BOOL prompt_password;
        struct passwd *pw;
        char *server, *p;
        uint32 flags;
        int c;

        flags = RDP_LOGON_NORMAL;
        prompt_password = False;
        domain[0] = password[0] = shell[0] = directory[0] = 0;
        strcpy(keymapname, "us");

        while ((c = getopt(argc, argv, "u:d:s:c:p:n:k:g:t:fbemlKw:h?")) != -1)
        {
                switch (c)
                {
                        case 'u':
                                STRNCPY(username, optarg, sizeof(username));
                                break;

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

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

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

                        case 'p':
                                if ((optarg[0] == '-') && (optarg[1] == 0))
                                {
                                        prompt_password = True;
                                        break;
                                }

                                STRNCPY(password, optarg, sizeof(password));
                                flags |= RDP_LOGON_AUTO;

                                /* try to overwrite argument so it won't appear in ps */
                                p = optarg;
                                while (*p)
                                        *(p++) = 'X';
                                break;

                        case 'n':
                                STRNCPY(hostname, optarg, sizeof(hostname));
                                break;

                        case 'k':
                                STRNCPY(keymapname, optarg, sizeof(keymapname));
                                break;

                        case 'g':
                                width = strtol(optarg, &p, 10);
                                if (*p == 'x')
                                        height = strtol(p + 1, NULL, 10);

                                if ((width == 0) || (height == 0))
                                {
                                        error("invalid geometry\n");
                                        return 1;
                                }
                                break;

                        case 'f':
                                fullscreen = True;
                                break;

                        case 'b':
                                orders = False;
                                break;

                        case 'e':
                                encryption = False;
                                break;

                        case 'm':
                                sendmotion = False;
                                break;

                        case 'l':
                                licence = False;
                                break;

                        case 't':
                                tcp_port_rdp = strtol(optarg, NULL, 10);
                                break;

                        case 'K':
                                grab_keyboard = False;
                                break;

                        case 'w':
                                strncpy(title, optarg, sizeof(title));
                                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))
                {
                        error("could not determine username, use -u\n");
                        return 1;
                }

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

        if (hostname[0] == 0)
        {
                if (gethostname(fullhostname, sizeof(fullhostname)) == -1)
                {
                        error("could not determine local hostname, use -n\n");
                        return 1;
                }

                p = strchr(fullhostname, '.');
                if (p != NULL)
                        *p = 0;

                STRNCPY(hostname, fullhostname, sizeof(hostname));
        }

        if (prompt_password && read_password(password, sizeof(password)))
                flags |= RDP_LOGON_AUTO;

        if (title[0] == 0)
        {
                strcpy(title, "rdesktop - ");
                strncat(title, server, sizeof(title) - sizeof("rdesktop - "));
        }

        if (!ui_init())
                return 1;

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

        DEBUG(("Connection successful.\n"));
        memset(password, 0, sizeof(password));

        if (ui_create_window())
        {
                rdp_main_loop();
                ui_destroy_window();
        }

        DEBUG(("Disconnecting...\n"));
        rdp_disconnect();
        ui_deinit();
        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)
            || ((fd = open("/dev/random", 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);
}

/* report an error */
void
error(char *format, ...)
{
        va_list ap;

        fprintf(stderr, "ERROR: ");

        va_start(ap, format);
        vfprintf(stderr, format, ap);
        va_end(ap);
}

/* report an unimplemented protocol feature */
void
unimpl(char *format, ...)
{
        va_list ap;

        fprintf(stderr, "NOT IMPLEMENTED: ");

        va_start(ap, format);
        vfprintf(stderr, format, ap);
        va_end(ap);
}

/* 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)
        {
                printf("%04x ", offset);
                thisline = len - offset;
                if (thisline > 16)
                        thisline = 16;

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

                for (; i < 16; i++)
                        printf("   ");

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

                printf("\n");
                offset += thisline;
                line += thisline;
        }
}

#ifdef SAVE_LICENCE
int
load_licence(unsigned char **data)
{
        char path[PATH_MAX];
        char *home;
        struct stat st;
        int fd;

        home = getenv("HOME");
        if (home == NULL)
                return -1;

        STRNCPY(path, home, sizeof(path));
        strncat(path, "/.rdesktop/licence", sizeof(path) - strlen(path) - 1);

        fd = open(path, O_RDONLY);
        if (fd == -1)
                return -1;

        if (fstat(fd, &st))
                return -1;

        *data = xmalloc(st.st_size);
        return read(fd, *data, st.st_size);
}

void
save_licence(unsigned char *data, int length)
{
        char path[PATH_MAX];
        char *home;
        int fd;

        home = getenv("HOME");
        if (home == NULL)
                return;

        STRNCPY(path, home, sizeof(path));
        strncat(path, "/.rdesktop", sizeof(path) - strlen(path) - 1);
        mkdir(path, 0700);

        strncat(path, "/licence", sizeof(path) - strlen(path) - 1);

        fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0600);
        if (fd == -1)
        {
                perror("open");
                return;
        }

        write(fd, data, length);
        close(fd);
}
#endif
1	matty	10	/*
2			rdesktop: A Remote Desktop Protocol client.
3			Entrypoint and utility functions
4	matthewc	122	Copyright (C) Matthew Chapman 1999-2002
5	jsorg71	100
6	matty	10	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	jsorg71	100
11	matty	10	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	jsorg71	100
16	matty	10	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	30	#include <stdarg.h> /* va_list va_start va_end */
22	matty	24	#include <unistd.h> /* read close getuid getgid getpid getppid gethostname */
23			#include <fcntl.h> /* open */
24			#include <pwd.h> /* getpwuid */
25	matthewc	39	#include <limits.h> /* PATH_MAX */
26	matthewc	211	#include <termios.h> /* tcgetattr tcsetattr */
27	matty	24	#include <sys/stat.h> /* stat */
28			#include <sys/time.h> /* gettimeofday */
29			#include <sys/times.h> /* times */
30	matty	10	#include "rdesktop.h"
31
32	astrand	107	char title[32] = "";
33	matty	10	char username[16];
34			char hostname[16];
35	matthewc	38	char keymapname[16];
36	astrand	66	int keylayout = 0x409; /* Defaults to US keyboard layout */
37	matthewc	160	int width = 800;
38			int height = 600;
39	jsorg71	58	int tcp_port_rdp = TCP_PORT_RDP;
40	matty	28	BOOL bitmap_compression = True;
41	matty	29	BOOL sendmotion = True;
42	matty	10	BOOL orders = True;
43			BOOL licence = True;
44	matty	30	BOOL encryption = True;
45	matty	28	BOOL desktop_save = True;
46			BOOL fullscreen = False;
47	astrand	76	BOOL grab_keyboard = True;
48	matty	10
49			/* Display usage information */
50	matty	25	static void
51			usage(char *program)
52	matty	10	{
53	matthewc	122	fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n");
54			fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2002 Matt Chapman.\n");
55			fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n");
56
57	astrand	111	fprintf(stderr, "Usage: %s [options] server\n", program);
58			fprintf(stderr, " -u: user name\n");
59			fprintf(stderr, " -d: domain\n");
60			fprintf(stderr, " -s: shell\n");
61			fprintf(stderr, " -c: working directory\n");
62	matthewc	211	fprintf(stderr, " -p: password (- to prompt)\n");
63	astrand	111	fprintf(stderr, " -n: client hostname\n");
64			fprintf(stderr, " -k: keyboard layout on terminal server (us,sv,gr etc.)\n");
65			fprintf(stderr, " -g: desktop geometry (WxH)\n");
66			fprintf(stderr, " -f: full-screen mode\n");
67			fprintf(stderr, " -b: force bitmap updates\n");
68			fprintf(stderr, " -e: disable encryption (French TS)\n");
69			fprintf(stderr, " -m: do not send motion events\n");
70			fprintf(stderr, " -l: do not request licence\n");
71			fprintf(stderr, " -t: rdp tcp port\n");
72			fprintf(stderr, " -K: keep window manager key bindings\n");
73			fprintf(stderr, " -w: window title\n");
74	matty	10	}
75
76	matthewc	211	static BOOL
77			read_password(char *password, int size)
78			{
79			struct termios tios;
80			BOOL ret = False;
81			int istty = 0;
82			char *p;
83
84			if (tcgetattr(STDIN_FILENO, &tios) == 0)
85			{
86			fprintf(stderr, "Password: ");
87			tios.c_lflag &= ~ECHO;
88			tcsetattr(STDIN_FILENO, TCSANOW, &tios);
89			istty = 1;
90			}
91
92			if (fgets(password, size, stdin) != NULL)
93			{
94			ret = True;
95
96			/* strip final newline */
97			p = strchr(password, '\n');
98			if (p != NULL)
99			*p = 0;
100			}
101
102			if (istty)
103			{
104			tios.c_lflag \|= ECHO;
105			tcsetattr(STDIN_FILENO, TCSANOW, &tios);
106			fprintf(stderr, "\n");
107			}
108
109			return ret;
110			}
111
112	matty	10	/* Client program */
113	matty	25	int
114			main(int argc, char *argv[])
115	matty	10	{
116	matty	30	char fullhostname[64];
117	matty	21	char domain[16];
118			char password[16];
119			char shell[32];
120			char directory[32];
121	matthewc	211	BOOL prompt_password;
122	matty	30	struct passwd *pw;
123			char server, p;
124			uint32 flags;
125	matty	10	int c;
126
127	matty	21	flags = RDP_LOGON_NORMAL;
128	matthewc	211	prompt_password = False;
129	matty	21	domain[0] = password[0] = shell[0] = directory[0] = 0;
130	matthewc	38	strcpy(keymapname, "us");
131	matty	21
132	matthewc	213	while ((c = getopt(argc, argv, "u:d:s:c:p:n:k:g:t:fbemlKw:h?")) != -1)
133	matty	10	{
134			switch (c)
135			{
136			case 'u':
137	matty	30	STRNCPY(username, optarg, sizeof(username));
138	matty	10	break;
139
140	matty	21	case 'd':
141	matty	30	STRNCPY(domain, optarg, sizeof(domain));
142	matty	21	break;
143
144			case 's':
145	matty	30	STRNCPY(shell, optarg, sizeof(shell));
146	matty	21	break;
147
148			case 'c':
149	matty	30	STRNCPY(directory, optarg, sizeof(directory));
150	matty	21	break;
151
152	matty	30	case 'p':
153	matthewc	211	if ((optarg[0] == '-') && (optarg[1] == 0))
154			{
155			prompt_password = True;
156			break;
157			}
158
159	matty	30	STRNCPY(password, optarg, sizeof(password));
160			flags \|= RDP_LOGON_AUTO;
161	matthewc	211
162			/* try to overwrite argument so it won't appear in ps */
163	n-ki	171	p = optarg;
164			while (*p)
165			*(p++) = 'X';
166	matty	30	break;
167
168	matty	10	case 'n':
169	matty	30	STRNCPY(hostname, optarg, sizeof(hostname));
170	matty	10	break;
171
172			case 'k':
173	astrand	82	STRNCPY(keymapname, optarg, sizeof(keymapname));
174	matty	10	break;
175
176	matty	30	case 'g':
177			width = strtol(optarg, &p, 10);
178			if (*p == 'x')
179	astrand	64	height = strtol(p + 1, NULL, 10);
180	matty	30
181			if ((width == 0) \|\| (height == 0))
182			{
183			error("invalid geometry\n");
184			return 1;
185			}
186	matty	10	break;
187
188	matty	30	case 'f':
189			fullscreen = True;
190			break;
191
192	matty	10	case 'b':
193			orders = False;
194			break;
195
196	matty	30	case 'e':
197			encryption = False;
198	matty	10	break;
199
200	matty	30	case 'm':
201			sendmotion = False;
202	matty	28	break;
203	matty	29
204	matty	30	case 'l':
205			licence = False;
206	matty	28	break;
207	matty	29
208	jsorg71	58	case 't':
209			tcp_port_rdp = strtol(optarg, NULL, 10);
210			break;
211
212	astrand	76	case 'K':
213			grab_keyboard = False;
214			break;
215
216	astrand	107	case 'w':
217			strncpy(title, optarg, sizeof(title));
218			break;
219
220	matty	28	case 'h':
221	matty	10	case '?':
222			default:
223			usage(argv[0]);
224			return 1;
225			}
226			}
227
228			if (argc - optind < 1)
229			{
230			usage(argv[0]);
231			return 1;
232			}
233
234			server = argv[optind];
235
236			if (username[0] == 0)
237			{
238			pw = getpwuid(getuid());
239			if ((pw == NULL) \|\| (pw->pw_name == NULL))
240			{
241	matty	30	error("could not determine username, use -u\n");
242	matty	10	return 1;
243			}
244
245	matty	30	STRNCPY(username, pw->pw_name, sizeof(username));
246	matty	10	}
247
248			if (hostname[0] == 0)
249			{
250	matty	30	if (gethostname(fullhostname, sizeof(fullhostname)) == -1)
251	matty	10	{
252	matty	30	error("could not determine local hostname, use -n\n");
253	matty	10	return 1;
254			}
255	matty	30
256			p = strchr(fullhostname, '.');
257			if (p != NULL)
258			*p = 0;
259
260			STRNCPY(hostname, fullhostname, sizeof(hostname));
261	matty	10	}
262
263	matthewc	211	if (prompt_password && read_password(password, sizeof(password)))
264			flags \|= RDP_LOGON_AUTO;
265	matty	30
266	matthewc	211	if (title[0] == 0)
267	astrand	107	{
268			strcpy(title, "rdesktop - ");
269			strncat(title, server, sizeof(title) - sizeof("rdesktop - "));
270			}
271	matty	12
272	astrand	82	if (!ui_init())
273			return 1;
274	astrand	66
275	matthewc	53	if (!rdp_connect(server, flags, domain, password, shell, directory))
276			return 1;
277
278	matthewc	122	DEBUG(("Connection successful.\n"));
279	matthewc	211	memset(password, 0, sizeof(password));
280	matthewc	53
281	jsorg71	100	if (ui_create_window())
282	matty	10	{
283			rdp_main_loop();
284			ui_destroy_window();
285			}
286
287	matthewc	122	DEBUG(("Disconnecting...\n"));
288	matthewc	53	rdp_disconnect();
289	matthewc	188	ui_deinit();
290	matty	10	return 0;
291			}
292
293			/* Generate a 32-byte random for the secure transport code. */
294	matty	25	void
295	astrand	64	generate_random(uint8 * random)
296	matty	10	{
297			struct stat st;
298	matty	22	struct tms tmsbuf;
299	matty	24	uint32 r = (uint32 ) random;
300	matty	10	int fd;
301
302			/* If we have a kernel random device, use it. */
303	matty	30	if (((fd = open("/dev/urandom", O_RDONLY)) != -1)
304			\|\| ((fd = open("/dev/random", O_RDONLY)) != -1))
305	matty	10	{
306			read(fd, random, 32);
307			close(fd);
308			return;
309			}
310
311			/* Otherwise use whatever entropy we can gather - ideas welcome. */
312			r[0] = (getpid()) \| (getppid() << 16);
313			r[1] = (getuid()) \| (getgid() << 16);
314	matty	24	r[2] = times(&tmsbuf); /* system uptime (clocks) */
315			gettimeofday((struct timeval ) &r[3], NULL); / sec and usec */
316	matty	10	stat("/tmp", &st);
317			r[5] = st.st_atime;
318			r[6] = st.st_mtime;
319			r[7] = st.st_ctime;
320			}
321
322			/* malloc; exit if out of memory */
323	matty	25	void *
324			xmalloc(int size)
325	matty	10	{
326			void *mem = malloc(size);
327			if (mem == NULL)
328			{
329	matty	30	error("xmalloc %d\n", size);
330	matty	10	exit(1);
331			}
332			return mem;
333			}
334
335			/* realloc; exit if out of memory */
336	matty	25	void *
337			xrealloc(void *oldmem, int size)
338	matty	10	{
339			void *mem = realloc(oldmem, size);
340			if (mem == NULL)
341			{
342	matty	30	error("xrealloc %d\n", size);
343	matty	10	exit(1);
344			}
345			return mem;
346			}
347
348			/* free */
349	matty	25	void
350			xfree(void *mem)
351	matty	10	{
352			free(mem);
353			}
354
355	matty	30	/* report an error */
356	matty	25	void
357	matty	30	error(char *format, ...)
358			{
359			va_list ap;
360
361			fprintf(stderr, "ERROR: ");
362
363			va_start(ap, format);
364			vfprintf(stderr, format, ap);
365			va_end(ap);
366			}
367
368			/* report an unimplemented protocol feature */
369			void
370			unimpl(char *format, ...)
371			{
372			va_list ap;
373
374			fprintf(stderr, "NOT IMPLEMENTED: ");
375
376			va_start(ap, format);
377			vfprintf(stderr, format, ap);
378			va_end(ap);
379			}
380
381			/* produce a hex dump */
382			void
383	matty	25	hexdump(unsigned char *p, unsigned int len)
384	matty	10	{
385			unsigned char *line = p;
386			unsigned int thisline, offset = 0;
387			int i;
388
389			while (offset < len)
390			{
391	matthewc	169	printf("%04x ", offset);
392	matty	10	thisline = len - offset;
393			if (thisline > 16)
394			thisline = 16;
395
396			for (i = 0; i < thisline; i++)
397	matthewc	169	printf("%02x ", line[i]);
398	matty	10
399	matty	30	for (; i < 16; i++)
400	matthewc	169	printf(" ");
401	matty	30
402	matty	10	for (i = 0; i < thisline; i++)
403	matthewc	169	printf("%c", (line[i] >= 0x20 && line[i] < 0x7f) ? line[i] : '.');
404	matty	10
405	matthewc	169	printf("\n");
406	matty	10	offset += thisline;
407			line += thisline;
408			}
409			}
410	matthewc	39
411	matthewc	159	#ifdef SAVE_LICENCE
412	matthewc	39	int
413			load_licence(unsigned char **data)
414			{
415			char path[PATH_MAX];
416			char *home;
417			struct stat st;
418			int fd;
419
420			home = getenv("HOME");
421			if (home == NULL)
422			return -1;
423
424			STRNCPY(path, home, sizeof(path));
425	astrand	64	strncat(path, "/.rdesktop/licence", sizeof(path) - strlen(path) - 1);
426	matthewc	39
427			fd = open(path, O_RDONLY);
428			if (fd == -1)
429			return -1;
430
431			if (fstat(fd, &st))
432			return -1;
433
434			*data = xmalloc(st.st_size);
435			return read(fd, *data, st.st_size);
436			}
437
438			void
439			save_licence(unsigned char *data, int length)
440			{
441			char path[PATH_MAX];
442			char *home;
443			int fd;
444
445			home = getenv("HOME");
446			if (home == NULL)
447			return;
448
449			STRNCPY(path, home, sizeof(path));
450	astrand	64	strncat(path, "/.rdesktop", sizeof(path) - strlen(path) - 1);
451	matthewc	39	mkdir(path, 0700);
452
453	astrand	64	strncat(path, "/licence", sizeof(path) - strlen(path) - 1);
454	matthewc	39
455	astrand	64	fd = open(path, O_WRONLY \| O_CREAT \| O_TRUNC, 0600);
456	matthewc	39	if (fd == -1)
457			{
458			perror("open");
459			return;
460			}
461
462			write(fd, data, length);
463			close(fd);
464			}
465	matthewc	159	#endif