seamlessrdp-branch/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, "   -P: askpass-program (autologon)\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 *askpass_result;
        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: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 'P':
                                askpass_result = askpass(optarg, "Enter password");
                                if (askpass_result == NULL)
                                        exit(1);

                                STRNCPY(password, askpass_result, sizeof(password));
                                free(askpass_result);
                                flags |= RDP_LOGON_AUTO;
                                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, " -P: askpass-program (autologon)\n");
64			fprintf(stderr, " -n: client hostname\n");
65			fprintf(stderr, " -k: keyboard layout on terminal server (us,sv,gr etc.)\n");
66			fprintf(stderr, " -g: desktop geometry (WxH)\n");
67			fprintf(stderr, " -f: full-screen mode\n");
68			fprintf(stderr, " -b: force bitmap updates\n");
69			fprintf(stderr, " -e: disable encryption (French TS)\n");
70			fprintf(stderr, " -m: do not send motion events\n");
71			fprintf(stderr, " -l: do not request licence\n");
72			fprintf(stderr, " -t: rdp tcp port\n");
73			fprintf(stderr, " -K: keep window manager key bindings\n");
74			fprintf(stderr, " -w: window title\n");
75	matty	10	}
76
77	matthewc	211	static BOOL
78			read_password(char *password, int size)
79			{
80			struct termios tios;
81			BOOL ret = False;
82			int istty = 0;
83			char *p;
84
85			if (tcgetattr(STDIN_FILENO, &tios) == 0)
86			{
87			fprintf(stderr, "Password: ");
88			tios.c_lflag &= ~ECHO;
89			tcsetattr(STDIN_FILENO, TCSANOW, &tios);
90			istty = 1;
91			}
92
93			if (fgets(password, size, stdin) != NULL)
94			{
95			ret = True;
96
97			/* strip final newline */
98			p = strchr(password, '\n');
99			if (p != NULL)
100			*p = 0;
101			}
102
103			if (istty)
104			{
105			tios.c_lflag \|= ECHO;
106			tcsetattr(STDIN_FILENO, TCSANOW, &tios);
107			fprintf(stderr, "\n");
108			}
109
110			return ret;
111			}
112
113	matty	10	/* Client program */
114	matty	25	int
115			main(int argc, char *argv[])
116	matty	10	{
117	matty	30	char fullhostname[64];
118	matty	21	char domain[16];
119			char password[16];
120	astrand	96	char *askpass_result;
121	matty	21	char shell[32];
122			char directory[32];
123	matthewc	211	BOOL prompt_password;
124	matty	30	struct passwd *pw;
125			char server, p;
126			uint32 flags;
127	matty	10	int c;
128
129	matty	21	flags = RDP_LOGON_NORMAL;
130	matthewc	211	prompt_password = False;
131	matty	21	domain[0] = password[0] = shell[0] = directory[0] = 0;
132	matthewc	38	strcpy(keymapname, "us");
133	matty	21
134	astrand	107	while ((c = getopt(argc, argv, "u:d:s:c:p:P:n:k:g:t:fbemlKw:h?")) != -1)
135	matty	10	{
136			switch (c)
137			{
138			case 'u':
139	matty	30	STRNCPY(username, optarg, sizeof(username));
140	matty	10	break;
141
142	matty	21	case 'd':
143	matty	30	STRNCPY(domain, optarg, sizeof(domain));
144	matty	21	break;
145
146			case 's':
147	matty	30	STRNCPY(shell, optarg, sizeof(shell));
148	matty	21	break;
149
150			case 'c':
151	matty	30	STRNCPY(directory, optarg, sizeof(directory));
152	matty	21	break;
153
154	matty	30	case 'p':
155	matthewc	211	if ((optarg[0] == '-') && (optarg[1] == 0))
156			{
157			prompt_password = True;
158			break;
159			}
160
161	matty	30	STRNCPY(password, optarg, sizeof(password));
162			flags \|= RDP_LOGON_AUTO;
163	matthewc	211
164			/* try to overwrite argument so it won't appear in ps */
165	n-ki	171	p = optarg;
166			while (*p)
167			*(p++) = 'X';
168	matty	30	break;
169
170	astrand	96	case 'P':
171			askpass_result = askpass(optarg, "Enter password");
172			if (askpass_result == NULL)
173			exit(1);
174
175			STRNCPY(password, askpass_result, sizeof(password));
176			free(askpass_result);
177			flags \|= RDP_LOGON_AUTO;
178			break;
179
180	matty	10	case 'n':
181	matty	30	STRNCPY(hostname, optarg, sizeof(hostname));
182	matty	10	break;
183
184			case 'k':
185	astrand	82	STRNCPY(keymapname, optarg, sizeof(keymapname));
186	matty	10	break;
187
188	matty	30	case 'g':
189			width = strtol(optarg, &p, 10);
190			if (*p == 'x')
191	astrand	64	height = strtol(p + 1, NULL, 10);
192	matty	30
193			if ((width == 0) \|\| (height == 0))
194			{
195			error("invalid geometry\n");
196			return 1;
197			}
198	matty	10	break;
199
200	matty	30	case 'f':
201			fullscreen = True;
202			break;
203
204	matty	10	case 'b':
205			orders = False;
206			break;
207
208	matty	30	case 'e':
209			encryption = False;
210	matty	10	break;
211
212	matty	30	case 'm':
213			sendmotion = False;
214	matty	28	break;
215	matty	29
216	matty	30	case 'l':
217			licence = False;
218	matty	28	break;
219	matty	29
220	jsorg71	58	case 't':
221			tcp_port_rdp = strtol(optarg, NULL, 10);
222			break;
223
224	astrand	76	case 'K':
225			grab_keyboard = False;
226			break;
227
228	astrand	107	case 'w':
229			strncpy(title, optarg, sizeof(title));
230			break;
231
232	matty	28	case 'h':
233	matty	10	case '?':
234			default:
235			usage(argv[0]);
236			return 1;
237			}
238			}
239
240			if (argc - optind < 1)
241			{
242			usage(argv[0]);
243			return 1;
244			}
245
246			server = argv[optind];
247
248			if (username[0] == 0)
249			{
250			pw = getpwuid(getuid());
251			if ((pw == NULL) \|\| (pw->pw_name == NULL))
252			{
253	matty	30	error("could not determine username, use -u\n");
254	matty	10	return 1;
255			}
256
257	matty	30	STRNCPY(username, pw->pw_name, sizeof(username));
258	matty	10	}
259
260			if (hostname[0] == 0)
261			{
262	matty	30	if (gethostname(fullhostname, sizeof(fullhostname)) == -1)
263	matty	10	{
264	matty	30	error("could not determine local hostname, use -n\n");
265	matty	10	return 1;
266			}
267	matty	30
268			p = strchr(fullhostname, '.');
269			if (p != NULL)
270			*p = 0;
271
272			STRNCPY(hostname, fullhostname, sizeof(hostname));
273	matty	10	}
274
275	matthewc	211	if (prompt_password && read_password(password, sizeof(password)))
276			flags \|= RDP_LOGON_AUTO;
277	matty	30
278	matthewc	211	if (title[0] == 0)
279	astrand	107	{
280			strcpy(title, "rdesktop - ");
281			strncat(title, server, sizeof(title) - sizeof("rdesktop - "));
282			}
283	matty	12
284	astrand	82	if (!ui_init())
285			return 1;
286	astrand	66
287	matthewc	53	if (!rdp_connect(server, flags, domain, password, shell, directory))
288			return 1;
289
290	matthewc	122	DEBUG(("Connection successful.\n"));
291	matthewc	211	memset(password, 0, sizeof(password));
292	matthewc	53
293	jsorg71	100	if (ui_create_window())
294	matty	10	{
295			rdp_main_loop();
296			ui_destroy_window();
297			}
298
299	matthewc	122	DEBUG(("Disconnecting...\n"));
300	matthewc	53	rdp_disconnect();
301	matthewc	188	ui_deinit();
302	matty	10	return 0;
303			}
304
305			/* Generate a 32-byte random for the secure transport code. */
306	matty	25	void
307	astrand	64	generate_random(uint8 * random)
308	matty	10	{
309			struct stat st;
310	matty	22	struct tms tmsbuf;
311	matty	24	uint32 r = (uint32 ) random;
312	matty	10	int fd;
313
314			/* If we have a kernel random device, use it. */
315	matty	30	if (((fd = open("/dev/urandom", O_RDONLY)) != -1)
316			\|\| ((fd = open("/dev/random", O_RDONLY)) != -1))
317	matty	10	{
318			read(fd, random, 32);
319			close(fd);
320			return;
321			}
322
323			/* Otherwise use whatever entropy we can gather - ideas welcome. */
324			r[0] = (getpid()) \| (getppid() << 16);
325			r[1] = (getuid()) \| (getgid() << 16);
326	matty	24	r[2] = times(&tmsbuf); /* system uptime (clocks) */
327			gettimeofday((struct timeval ) &r[3], NULL); / sec and usec */
328	matty	10	stat("/tmp", &st);
329			r[5] = st.st_atime;
330			r[6] = st.st_mtime;
331			r[7] = st.st_ctime;
332			}
333
334			/* malloc; exit if out of memory */
335	matty	25	void *
336			xmalloc(int size)
337	matty	10	{
338			void *mem = malloc(size);
339			if (mem == NULL)
340			{
341	matty	30	error("xmalloc %d\n", size);
342	matty	10	exit(1);
343			}
344			return mem;
345			}
346
347			/* realloc; exit if out of memory */
348	matty	25	void *
349			xrealloc(void *oldmem, int size)
350	matty	10	{
351			void *mem = realloc(oldmem, size);
352			if (mem == NULL)
353			{
354	matty	30	error("xrealloc %d\n", size);
355	matty	10	exit(1);
356			}
357			return mem;
358			}
359
360			/* free */
361	matty	25	void
362			xfree(void *mem)
363	matty	10	{
364			free(mem);
365			}
366
367	matty	30	/* report an error */
368	matty	25	void
369	matty	30	error(char *format, ...)
370			{
371			va_list ap;
372
373			fprintf(stderr, "ERROR: ");
374
375			va_start(ap, format);
376			vfprintf(stderr, format, ap);
377			va_end(ap);
378			}
379
380			/* report an unimplemented protocol feature */
381			void
382			unimpl(char *format, ...)
383			{
384			va_list ap;
385
386			fprintf(stderr, "NOT IMPLEMENTED: ");
387
388			va_start(ap, format);
389			vfprintf(stderr, format, ap);
390			va_end(ap);
391			}
392
393			/* produce a hex dump */
394			void
395	matty	25	hexdump(unsigned char *p, unsigned int len)
396	matty	10	{
397			unsigned char *line = p;
398			unsigned int thisline, offset = 0;
399			int i;
400
401			while (offset < len)
402			{
403	matthewc	169	printf("%04x ", offset);
404	matty	10	thisline = len - offset;
405			if (thisline > 16)
406			thisline = 16;
407
408			for (i = 0; i < thisline; i++)
409	matthewc	169	printf("%02x ", line[i]);
410	matty	10
411	matty	30	for (; i < 16; i++)
412	matthewc	169	printf(" ");
413	matty	30
414	matty	10	for (i = 0; i < thisline; i++)
415	matthewc	169	printf("%c", (line[i] >= 0x20 && line[i] < 0x7f) ? line[i] : '.');
416	matty	10
417	matthewc	169	printf("\n");
418	matty	10	offset += thisline;
419			line += thisline;
420			}
421			}
422	matthewc	39
423	matthewc	159	#ifdef SAVE_LICENCE
424	matthewc	39	int
425			load_licence(unsigned char **data)
426			{
427			char path[PATH_MAX];
428			char *home;
429			struct stat st;
430			int fd;
431
432			home = getenv("HOME");
433			if (home == NULL)
434			return -1;
435
436			STRNCPY(path, home, sizeof(path));
437	astrand	64	strncat(path, "/.rdesktop/licence", sizeof(path) - strlen(path) - 1);
438	matthewc	39
439			fd = open(path, O_RDONLY);
440			if (fd == -1)
441			return -1;
442
443			if (fstat(fd, &st))
444			return -1;
445
446			*data = xmalloc(st.st_size);
447			return read(fd, *data, st.st_size);
448			}
449
450			void
451			save_licence(unsigned char *data, int length)
452			{
453			char path[PATH_MAX];
454			char *home;
455			int fd;
456
457			home = getenv("HOME");
458			if (home == NULL)
459			return;
460
461			STRNCPY(path, home, sizeof(path));
462	astrand	64	strncat(path, "/.rdesktop", sizeof(path) - strlen(path) - 1);
463	matthewc	39	mkdir(path, 0700);
464
465	astrand	64	strncat(path, "/licence", sizeof(path) - strlen(path) - 1);
466	matthewc	39
467	astrand	64	fd = open(path, O_WRONLY \| O_CREAT \| O_TRUNC, 0600);
468	matthewc	39	if (fd == -1)
469			{
470			perror("open");
471			return;
472			}
473
474			write(fd, data, length);
475			close(fd);
476			}
477	matthewc	159	#endif