trunk/rdesktop/rdesktop.c

/* -*- c-basic-offset: 8 -*-
   rdesktop: A Remote Desktop Protocol client.
   Entrypoint and utility functions
   Copyright (C) Matthew Chapman 1999-2003

   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 <termios.h>            /* tcgetattr tcsetattr */
#include <sys/stat.h>           /* stat */
#include <sys/time.h>           /* gettimeofday */
#include <sys/times.h>          /* times */
#include <errno.h>
#include "rdesktop.h"

#ifdef EGD_SOCKET
#include <sys/socket.h>         /* socket connect */
#include <sys/un.h>             /* sockaddr_un */
#endif

#ifdef WITH_OPENSSL
#include <openssl/md5.h>
#else
#include "crypto/md5.h"
#endif

char title[32] = "";
char username[16];
char hostname[16];
char keymapname[16];
int keylayout = 0x409;          /* Defaults to US keyboard layout */
int width = 800;                /* If width or height are reset to zero, the geometry will
                                   be fetched from _NET_WORKAREA */
int height = 600;
int tcp_port_rdp = TCP_PORT_RDP;
int server_bpp = 8;
int win_button_size = 0;        /* If zero, disable single app mode */
BOOL bitmap_compression = True;
BOOL sendmotion = True;
BOOL orders = True;
BOOL encryption = True;
BOOL desktop_save = True;
BOOL fullscreen = False;
BOOL grab_keyboard = True;
BOOL hide_decorations = False;
BOOL use_rdp5 = False;
extern BOOL owncolmap;

#ifdef RDP2VNC
extern int rfb_port;
extern int defer_time;
void
rdp2vnc_connect(char *server, uint32 flags, char *domain, char *password,
                char *shell, char *directory);
#endif
/* Display usage information */
static void
usage(char *program)
{
        fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n");
        fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2003 Matt Chapman.\n");
        fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n");

        fprintf(stderr, "Usage: %s [options] server[:port]\n", program);
#ifdef RDP2VNC
        fprintf(stderr, "   -V: vnc port\n");
        fprintf(stderr, "   -E: defer time (ms)\n");
#endif
        fprintf(stderr, "   -u: user name\n");
        fprintf(stderr, "   -d: domain\n");
        fprintf(stderr, "   -s: shell\n");
        fprintf(stderr, "   -S: caption button size (single application mode)\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, "   -C: use private colour map\n");
        fprintf(stderr, "   -K: keep window manager key bindings\n");
        fprintf(stderr, "   -T: window title\n");
        fprintf(stderr, "   -D: hide window manager decorations\n");
        fprintf(stderr, "   -a: server bpp\n");
        fprintf(stderr, "   -5: Use RDP5 (EXPERIMENTAL!)\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 server[64];
        char fullhostname[64];
        char domain[16];
        char password[16];
        char shell[128];
        char directory[32];
        BOOL prompt_password;
        struct passwd *pw;
        uint32 flags;
        char *p;
        int c;
        int username_option = 0;

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

#ifdef RDP2VNC
#define VNCOPT "V:E:"
#else
#define VNCOPT
#endif

        while ((c = getopt(argc, argv, VNCOPT "u:d:s:S:c:p:n:k:g:a:fbemCKT:Dh?54")) != -1)
        {
                switch (c)
                {
#ifdef RDP2VNC
                        case 'V':
                                rfb_port = strtol(optarg, NULL, 10);
                                if (rfb_port < 100)
                                        rfb_port += 5900;
                                break;

                        case 'E':
                                defer_time = strtol(optarg, NULL, 10);
                                if (defer_time < 0)
                                        defer_time = 0;
                                break;
#endif

                        case 'u':
                                STRNCPY(username, optarg, sizeof(username));
                                username_option = 1;
                                break;

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

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

                        case 'S':
                                if (!strcmp(optarg, "standard"))
                                {
                                        win_button_size = 18;
                                        break;
                                }

                                win_button_size = strtol(optarg, &p, 10);

                                if (*p)
                                {
                                        error("invalid button size\n");
                                        return 1;
                                }

                                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':
                                if (!strcmp(optarg, "workarea"))
                                {
                                        width = height = 0;
                                        break;
                                }

                                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 'C':
                                owncolmap = True;
                                break;

                        case 'K':
                                grab_keyboard = False;
                                break;

                        case 'T':
                                STRNCPY(title, optarg, sizeof(title));
                                break;

                        case 'D':
                                hide_decorations = True;
                                break;

                        case 'a':
                                server_bpp = strtol(optarg, NULL, 10);
                                if (server_bpp != 8 && server_bpp != 16 && server_bpp != 15
                                    && server_bpp != 24)
                                {
                                        error("invalid server bpp\n");
                                        return 1;
                                }
                                break;

                        case '5':
                                use_rdp5 = True;
                                break;
                        case 'h':
                        case '?':
                        default:
                                usage(argv[0]);
                                return 1;
                }
        }

        if (argc - optind < 1)
        {
                usage(argv[0]);
                return 1;
        }

        STRNCPY(server, argv[optind], sizeof(server));
        p = strchr(server, ':');
        if (p != NULL)
        {
                tcp_port_rdp = strtol(p + 1, NULL, 10);
                *p = 0;
        }

        if (!username_option)
        {
                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 - "));
        }

#ifdef RDP2VNC
        rdp2vnc_connect(server, flags, domain, password, shell, directory);
#else

        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();

#endif

        return 0;
}

#ifdef EGD_SOCKET
/* Read 32 random bytes from PRNGD or EGD socket (based on OpenSSL RAND_egd) */
static BOOL
generate_random_egd(uint8 * buf)
{
        struct sockaddr_un addr;
        BOOL ret = False;
        int fd;

        fd = socket(AF_UNIX, SOCK_STREAM, 0);
        if (fd == -1)
                return False;

        addr.sun_family = AF_UNIX;
        memcpy(addr.sun_path, EGD_SOCKET, sizeof(EGD_SOCKET));
        if (connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1)
                goto err;

        /* PRNGD and EGD use a simple communications protocol */
        buf[0] = 1;             /* Non-blocking (similar to /dev/urandom) */
        buf[1] = 32;            /* Number of requested random bytes */
        if (write(fd, buf, 2) != 2)
                goto err;

        if ((read(fd, buf, 1) != 1) || (buf[0] == 0))   /* Available? */
                goto err;

        if (read(fd, buf, 32) != 32)
                goto err;

        ret = True;

      err:
        close(fd);
        return ret;
}
#endif

/* Generate a 32-byte random for the secure transport code. */
void
generate_random(uint8 * random)
{
        struct stat st;
        struct tms tmsbuf;
        MD5_CTX md5;
        uint32 *r;
        int fd, n;

        /* If we have a kernel random device, try that first */
        if (((fd = open("/dev/urandom", O_RDONLY)) != -1)
            || ((fd = open("/dev/random", O_RDONLY)) != -1))
        {
                n = read(fd, random, 32);
                close(fd);
                if (n == 32)
                        return;
        }

#ifdef EGD_SOCKET
        /* As a second preference use an EGD */
        if (generate_random_egd(random))
                return;
#endif

        /* Otherwise use whatever entropy we can gather - ideas welcome. */
        r = (uint32 *) random;
        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;

        /* Hash both halves with MD5 to obscure possible patterns */
        MD5_Init(&md5);
        MD5_Update(&md5, random, 16);
        MD5_Final(random, &md5);
        MD5_Update(&md5, random + 16, 16);
        MD5_Final(random + 16, &md5);
}

/* 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 a warning */
void
warning(char *format, ...)
{
        va_list ap;

        fprintf(stderr, "WARNING: ");

        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;
        }
}


int
load_licence(unsigned char **data)
{
        char *home, *path;
        struct stat st;
        int fd, length;

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

        path = xmalloc(strlen(home) + strlen(hostname) + sizeof("/.rdesktop/licence."));
        sprintf(path, "%s/.rdesktop/licence.%s", home, hostname);

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

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

        *data = xmalloc(st.st_size);
        length = read(fd, *data, st.st_size);
        close(fd);
        xfree(path);
        return length;
}

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

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

        path = xmalloc(strlen(home) + strlen(hostname) + sizeof("/.rdesktop/licence."));

        sprintf(path, "%s/.rdesktop", home);
        if ((mkdir(path, 0700) == -1) && errno != EEXIST)
        {
                perror(path);
                return;
        }

        /* write licence to licence.hostname.new, then atomically rename to licence.hostname */

        sprintf(path, "%s/.rdesktop/licence.%s", home, hostname);
        tmppath = xmalloc(strlen(path) + sizeof(".new"));
        strcpy(tmppath, path);
        strcat(tmppath, ".new");

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

        if (write(fd, data, length) != length)
        {
                perror(tmppath);
                unlink(tmppath);
        }
        else if (rename(tmppath, path) == -1)
        {
                perror(path);
                unlink(tmppath);
        }

        close(fd);
        xfree(tmppath);
        xfree(path);
}
1	forsberg	350	/* -- c-basic-offset: 8 --
2	matty	10	rdesktop: A Remote Desktop Protocol client.
3			Entrypoint and utility functions
4	matthewc	304	Copyright (C) Matthew Chapman 1999-2003
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	211	#include <termios.h> /* tcgetattr tcsetattr */
26	matty	24	#include <sys/stat.h> /* stat */
27			#include <sys/time.h> /* gettimeofday */
28			#include <sys/times.h> /* times */
29	astrand	325	#include <errno.h>
30	matty	10	#include "rdesktop.h"
31
32	matthewc	220	#ifdef EGD_SOCKET
33			#include <sys/socket.h> /* socket connect */
34			#include <sys/un.h> /* sockaddr_un */
35			#endif
36
37			#ifdef WITH_OPENSSL
38			#include <openssl/md5.h>
39			#else
40			#include "crypto/md5.h"
41			#endif
42
43	astrand	107	char title[32] = "";
44	matty	10	char username[16];
45			char hostname[16];
46	matthewc	38	char keymapname[16];
47	astrand	66	int keylayout = 0x409; /* Defaults to US keyboard layout */
48	jsorg71	309	int width = 800; /* If width or height are reset to zero, the geometry will
49	astrand	263	be fetched from _NET_WORKAREA */
50	matthewc	160	int height = 600;
51	jsorg71	58	int tcp_port_rdp = TCP_PORT_RDP;
52	jsorg71	309	int server_bpp = 8;
53	astrand	328	int win_button_size = 0; /* If zero, disable single app mode */
54	matty	28	BOOL bitmap_compression = True;
55	matty	29	BOOL sendmotion = True;
56	matty	10	BOOL orders = True;
57	matty	30	BOOL encryption = True;
58	matty	28	BOOL desktop_save = True;
59			BOOL fullscreen = False;
60	astrand	76	BOOL grab_keyboard = True;
61	astrand	262	BOOL hide_decorations = False;
62	forsberg	350	BOOL use_rdp5 = False;
63	n-ki	279	extern BOOL owncolmap;
64	matty	10
65	astrand	333	#ifdef RDP2VNC
66			extern int rfb_port;
67			extern int defer_time;
68			void
69			rdp2vnc_connect(char server, uint32 flags, char domain, char *password,
70			char shell, char directory);
71			#endif
72	matty	10	/* Display usage information */
73	matty	25	static void
74			usage(char *program)
75	matty	10	{
76	matthewc	122	fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n");
77	matthewc	304	fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2003 Matt Chapman.\n");
78	matthewc	122	fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n");
79
80	matthewc	222	fprintf(stderr, "Usage: %s [options] server[:port]\n", program);
81	astrand	333	#ifdef RDP2VNC
82			fprintf(stderr, " -V: vnc port\n");
83			fprintf(stderr, " -E: defer time (ms)\n");
84			#endif
85	astrand	111	fprintf(stderr, " -u: user name\n");
86			fprintf(stderr, " -d: domain\n");
87			fprintf(stderr, " -s: shell\n");
88	astrand	329	fprintf(stderr, " -S: caption button size (single application mode)\n");
89	astrand	111	fprintf(stderr, " -c: working directory\n");
90	matthewc	211	fprintf(stderr, " -p: password (- to prompt)\n");
91	astrand	111	fprintf(stderr, " -n: client hostname\n");
92	matthewc	223	fprintf(stderr, " -k: keyboard layout on terminal server (us,sv,gr,etc.)\n");
93	astrand	111	fprintf(stderr, " -g: desktop geometry (WxH)\n");
94			fprintf(stderr, " -f: full-screen mode\n");
95			fprintf(stderr, " -b: force bitmap updates\n");
96			fprintf(stderr, " -e: disable encryption (French TS)\n");
97			fprintf(stderr, " -m: do not send motion events\n");
98	n-ki	279	fprintf(stderr, " -C: use private colour map\n");
99	astrand	111	fprintf(stderr, " -K: keep window manager key bindings\n");
100	matthewc	223	fprintf(stderr, " -T: window title\n");
101	astrand	262	fprintf(stderr, " -D: hide window manager decorations\n");
102	jsorg71	309	fprintf(stderr, " -a: server bpp\n");
103	forsberg	350	fprintf(stderr, " -5: Use RDP5 (EXPERIMENTAL!)\n");
104	matty	10	}
105
106	matthewc	211	static BOOL
107			read_password(char *password, int size)
108			{
109			struct termios tios;
110			BOOL ret = False;
111			int istty = 0;
112			char *p;
113
114			if (tcgetattr(STDIN_FILENO, &tios) == 0)
115			{
116			fprintf(stderr, "Password: ");
117			tios.c_lflag &= ~ECHO;
118			tcsetattr(STDIN_FILENO, TCSANOW, &tios);
119			istty = 1;
120			}
121
122			if (fgets(password, size, stdin) != NULL)
123			{
124			ret = True;
125
126			/* strip final newline */
127			p = strchr(password, '\n');
128			if (p != NULL)
129			*p = 0;
130			}
131
132			if (istty)
133			{
134			tios.c_lflag \|= ECHO;
135			tcsetattr(STDIN_FILENO, TCSANOW, &tios);
136			fprintf(stderr, "\n");
137			}
138
139			return ret;
140			}
141
142	matty	10	/* Client program */
143	matty	25	int
144			main(int argc, char *argv[])
145	matty	10	{
146	matthewc	222	char server[64];
147	matty	30	char fullhostname[64];
148	matty	21	char domain[16];
149			char password[16];
150	astrand	238	char shell[128];
151	matty	21	char directory[32];
152	matthewc	211	BOOL prompt_password;
153	matty	30	struct passwd *pw;
154			uint32 flags;
155	matthewc	222	char *p;
156	matty	10	int c;
157	astrand	289	int username_option = 0;
158	matty	10
159	matty	21	flags = RDP_LOGON_NORMAL;
160	matthewc	211	prompt_password = False;
161	matty	21	domain[0] = password[0] = shell[0] = directory[0] = 0;
162	matthewc	240	strcpy(keymapname, "en-us");
163	matty	21
164	astrand	333	#ifdef RDP2VNC
165			#define VNCOPT "V:E:"
166			#else
167			#define VNCOPT
168			#endif
169
170	forsberg	350	while ((c = getopt(argc, argv, VNCOPT "u:d:s:S:c:p:n:k:g:a:fbemCKT:Dh?54")) != -1)
171	matty	10	{
172			switch (c)
173			{
174	astrand	333	#ifdef RDP2VNC
175			case 'V':
176			rfb_port = strtol(optarg, NULL, 10);
177			if (rfb_port < 100)
178			rfb_port += 5900;
179			break;
180
181			case 'E':
182			defer_time = strtol(optarg, NULL, 10);
183			if (defer_time < 0)
184			defer_time = 0;
185			break;
186			#endif
187
188	matty	10	case 'u':
189	matty	30	STRNCPY(username, optarg, sizeof(username));
190	astrand	289	username_option = 1;
191	matty	10	break;
192
193	matty	21	case 'd':
194	matty	30	STRNCPY(domain, optarg, sizeof(domain));
195	matty	21	break;
196
197			case 's':
198	matty	30	STRNCPY(shell, optarg, sizeof(shell));
199	matty	21	break;
200
201	astrand	328	case 'S':
202			if (!strcmp(optarg, "standard"))
203			{
204			win_button_size = 18;
205			break;
206			}
207
208			win_button_size = strtol(optarg, &p, 10);
209
210			if (*p)
211			{
212			error("invalid button size\n");
213			return 1;
214			}
215
216			break;
217
218	matty	21	case 'c':
219	matty	30	STRNCPY(directory, optarg, sizeof(directory));
220	matty	21	break;
221
222	matty	30	case 'p':
223	matthewc	211	if ((optarg[0] == '-') && (optarg[1] == 0))
224			{
225			prompt_password = True;
226			break;
227			}
228
229	matty	30	STRNCPY(password, optarg, sizeof(password));
230			flags \|= RDP_LOGON_AUTO;
231	matthewc	211
232			/* try to overwrite argument so it won't appear in ps */
233	n-ki	171	p = optarg;
234			while (*p)
235			*(p++) = 'X';
236	matty	30	break;
237
238	matty	10	case 'n':
239	matty	30	STRNCPY(hostname, optarg, sizeof(hostname));
240	matty	10	break;
241
242			case 'k':
243	astrand	82	STRNCPY(keymapname, optarg, sizeof(keymapname));
244	matty	10	break;
245
246	matty	30	case 'g':
247	astrand	263	if (!strcmp(optarg, "workarea"))
248			{
249			width = height = 0;
250			break;
251			}
252
253	matty	30	width = strtol(optarg, &p, 10);
254			if (*p == 'x')
255	astrand	64	height = strtol(p + 1, NULL, 10);
256	matty	30
257			if ((width == 0) \|\| (height == 0))
258			{
259			error("invalid geometry\n");
260			return 1;
261			}
262	matty	10	break;
263
264	matty	30	case 'f':
265			fullscreen = True;
266			break;
267
268	matty	10	case 'b':
269			orders = False;
270			break;
271
272	matty	30	case 'e':
273			encryption = False;
274	matty	10	break;
275
276	matty	30	case 'm':
277			sendmotion = False;
278	matty	28	break;
279	matty	29
280	n-ki	279	case 'C':
281			owncolmap = True;
282			break;
283
284	astrand	76	case 'K':
285			grab_keyboard = False;
286			break;
287
288	matthewc	223	case 'T':
289	matthewc	222	STRNCPY(title, optarg, sizeof(title));
290	astrand	107	break;
291
292	astrand	262	case 'D':
293			hide_decorations = True;
294			break;
295
296	jsorg71	309	case 'a':
297			server_bpp = strtol(optarg, NULL, 10);
298	astrand	318	if (server_bpp != 8 && server_bpp != 16 && server_bpp != 15
299			&& server_bpp != 24)
300	jsorg71	309	{
301			error("invalid server bpp\n");
302			return 1;
303			}
304			break;
305
306	forsberg	350	case '5':
307			use_rdp5 = True;
308			break;
309	matty	28	case 'h':
310	matty	10	case '?':
311			default:
312			usage(argv[0]);
313			return 1;
314			}
315			}
316
317			if (argc - optind < 1)
318			{
319			usage(argv[0]);
320			return 1;
321			}
322
323	matthewc	222	STRNCPY(server, argv[optind], sizeof(server));
324			p = strchr(server, ':');
325			if (p != NULL)
326			{
327			tcp_port_rdp = strtol(p + 1, NULL, 10);
328			*p = 0;
329			}
330	matty	10
331	astrand	289	if (!username_option)
332	matty	10	{
333			pw = getpwuid(getuid());
334			if ((pw == NULL) \|\| (pw->pw_name == NULL))
335			{
336	matty	30	error("could not determine username, use -u\n");
337	matty	10	return 1;
338			}
339
340	matty	30	STRNCPY(username, pw->pw_name, sizeof(username));
341	matty	10	}
342
343			if (hostname[0] == 0)
344			{
345	matty	30	if (gethostname(fullhostname, sizeof(fullhostname)) == -1)
346	matty	10	{
347	matty	30	error("could not determine local hostname, use -n\n");
348	matty	10	return 1;
349			}
350	matty	30
351			p = strchr(fullhostname, '.');
352			if (p != NULL)
353			*p = 0;
354
355			STRNCPY(hostname, fullhostname, sizeof(hostname));
356	matty	10	}
357
358	matthewc	211	if (prompt_password && read_password(password, sizeof(password)))
359			flags \|= RDP_LOGON_AUTO;
360	matty	30
361	matthewc	211	if (title[0] == 0)
362	astrand	107	{
363			strcpy(title, "rdesktop - ");
364			strncat(title, server, sizeof(title) - sizeof("rdesktop - "));
365			}
366	matty	12
367	astrand	333	#ifdef RDP2VNC
368			rdp2vnc_connect(server, flags, domain, password, shell, directory);
369			#else
370
371	astrand	82	if (!ui_init())
372			return 1;
373	astrand	66
374	matthewc	53	if (!rdp_connect(server, flags, domain, password, shell, directory))
375			return 1;
376
377	matthewc	122	DEBUG(("Connection successful.\n"));
378	matthewc	211	memset(password, 0, sizeof(password));
379	matthewc	53
380	jsorg71	100	if (ui_create_window())
381	matty	10	{
382			rdp_main_loop();
383			ui_destroy_window();
384			}
385
386	matthewc	122	DEBUG(("Disconnecting...\n"));
387	matthewc	53	rdp_disconnect();
388	matthewc	188	ui_deinit();
389	astrand	333
390			#endif
391
392	matty	10	return 0;
393			}
394
395	matthewc	220	#ifdef EGD_SOCKET
396			/* Read 32 random bytes from PRNGD or EGD socket (based on OpenSSL RAND_egd) */
397			static BOOL
398			generate_random_egd(uint8 * buf)
399			{
400			struct sockaddr_un addr;
401			BOOL ret = False;
402			int fd;
403
404			fd = socket(AF_UNIX, SOCK_STREAM, 0);
405			if (fd == -1)
406			return False;
407
408			addr.sun_family = AF_UNIX;
409			memcpy(addr.sun_path, EGD_SOCKET, sizeof(EGD_SOCKET));
410	astrand	259	if (connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1)
411	matthewc	220	goto err;
412
413			/* PRNGD and EGD use a simple communications protocol */
414	astrand	259	buf[0] = 1; /* Non-blocking (similar to /dev/urandom) */
415			buf[1] = 32; /* Number of requested random bytes */
416	matthewc	220	if (write(fd, buf, 2) != 2)
417			goto err;
418
419	astrand	259	if ((read(fd, buf, 1) != 1) \|\| (buf[0] == 0)) /* Available? */
420	matthewc	220	goto err;
421
422			if (read(fd, buf, 32) != 32)
423			goto err;
424
425			ret = True;
426
427	astrand	259	err:
428	matthewc	220	close(fd);
429			return ret;
430			}
431			#endif
432
433	matty	10	/* Generate a 32-byte random for the secure transport code. */
434	matty	25	void
435	astrand	64	generate_random(uint8 * random)
436	matty	10	{
437			struct stat st;
438	matty	22	struct tms tmsbuf;
439	matthewc	220	MD5_CTX md5;
440			uint32 *r;
441			int fd, n;
442	matty	10
443	matthewc	220	/* If we have a kernel random device, try that first */
444	matty	30	if (((fd = open("/dev/urandom", O_RDONLY)) != -1)
445			\|\| ((fd = open("/dev/random", O_RDONLY)) != -1))
446	matty	10	{
447	matthewc	220	n = read(fd, random, 32);
448	matty	10	close(fd);
449	matthewc	220	if (n == 32)
450			return;
451	matty	10	}
452
453	matthewc	220	#ifdef EGD_SOCKET
454			/* As a second preference use an EGD */
455			if (generate_random_egd(random))
456			return;
457			#endif
458
459	matty	10	/* Otherwise use whatever entropy we can gather - ideas welcome. */
460	astrand	259	r = (uint32 *) random;
461	matty	10	r[0] = (getpid()) \| (getppid() << 16);
462			r[1] = (getuid()) \| (getgid() << 16);
463	matty	24	r[2] = times(&tmsbuf); /* system uptime (clocks) */
464			gettimeofday((struct timeval ) &r[3], NULL); / sec and usec */
465	matty	10	stat("/tmp", &st);
466			r[5] = st.st_atime;
467			r[6] = st.st_mtime;
468			r[7] = st.st_ctime;
469	matthewc	220
470			/* Hash both halves with MD5 to obscure possible patterns */
471			MD5_Init(&md5);
472	astrand	259	MD5_Update(&md5, random, 16);
473	matthewc	220	MD5_Final(random, &md5);
474	astrand	259	MD5_Update(&md5, random + 16, 16);
475			MD5_Final(random + 16, &md5);
476	matty	10	}
477
478			/* malloc; exit if out of memory */
479	matty	25	void *
480			xmalloc(int size)
481	matty	10	{
482			void *mem = malloc(size);
483			if (mem == NULL)
484			{
485	matty	30	error("xmalloc %d\n", size);
486	matty	10	exit(1);
487			}
488			return mem;
489			}
490
491			/* realloc; exit if out of memory */
492	matty	25	void *
493			xrealloc(void *oldmem, int size)
494	matty	10	{
495			void *mem = realloc(oldmem, size);
496			if (mem == NULL)
497			{
498	matty	30	error("xrealloc %d\n", size);
499	matty	10	exit(1);
500			}
501			return mem;
502			}
503
504			/* free */
505	matty	25	void
506			xfree(void *mem)
507	matty	10	{
508			free(mem);
509			}
510
511	matty	30	/* report an error */
512	matty	25	void
513	matty	30	error(char *format, ...)
514			{
515			va_list ap;
516
517			fprintf(stderr, "ERROR: ");
518
519			va_start(ap, format);
520			vfprintf(stderr, format, ap);
521			va_end(ap);
522			}
523
524	matthewc	297	/* report a warning */
525			void
526			warning(char *format, ...)
527			{
528			va_list ap;
529
530			fprintf(stderr, "WARNING: ");
531
532			va_start(ap, format);
533			vfprintf(stderr, format, ap);
534			va_end(ap);
535			}
536
537	matty	30	/* report an unimplemented protocol feature */
538			void
539			unimpl(char *format, ...)
540			{
541			va_list ap;
542
543			fprintf(stderr, "NOT IMPLEMENTED: ");
544
545			va_start(ap, format);
546			vfprintf(stderr, format, ap);
547			va_end(ap);
548			}
549
550			/* produce a hex dump */
551			void
552	matty	25	hexdump(unsigned char *p, unsigned int len)
553	matty	10	{
554			unsigned char *line = p;
555			unsigned int thisline, offset = 0;
556			int i;
557
558			while (offset < len)
559			{
560	matthewc	169	printf("%04x ", offset);
561	matty	10	thisline = len - offset;
562			if (thisline > 16)
563			thisline = 16;
564
565			for (i = 0; i < thisline; i++)
566	matthewc	169	printf("%02x ", line[i]);
567	matty	10
568	matty	30	for (; i < 16; i++)
569	matthewc	169	printf(" ");
570	matty	30
571	matty	10	for (i = 0; i < thisline; i++)
572	matthewc	169	printf("%c", (line[i] >= 0x20 && line[i] < 0x7f) ? line[i] : '.');
573	matty	10
574	matthewc	169	printf("\n");
575	matty	10	offset += thisline;
576			line += thisline;
577			}
578			}
579	astrand	325
580
581			int
582			load_licence(unsigned char **data)
583			{
584	matthewc	367	char home, path;
585	astrand	325	struct stat st;
586	matthewc	367	int fd, length;
587	astrand	325
588			home = getenv("HOME");
589			if (home == NULL)
590			return -1;
591
592	matthewc	367	path = xmalloc(strlen(home) + strlen(hostname) + sizeof("/.rdesktop/licence."));
593	astrand	325	sprintf(path, "%s/.rdesktop/licence.%s", home, hostname);
594
595			fd = open(path, O_RDONLY);
596			if (fd == -1)
597			return -1;
598
599			if (fstat(fd, &st))
600			return -1;
601
602			*data = xmalloc(st.st_size);
603	matthewc	367	length = read(fd, *data, st.st_size);
604			close(fd);
605			xfree(path);
606			return length;
607	astrand	325	}
608
609			void
610			save_licence(unsigned char *data, int length)
611			{
612	matthewc	367	char home, path, *tmppath;
613			int fd;
614	astrand	325
615			home = getenv("HOME");
616			if (home == NULL)
617			return;
618
619	matthewc	367	path = xmalloc(strlen(home) + strlen(hostname) + sizeof("/.rdesktop/licence."));
620	astrand	325
621	matthewc	367	sprintf(path, "%s/.rdesktop", home);
622			if ((mkdir(path, 0700) == -1) && errno != EEXIST)
623	astrand	325	{
624	matthewc	367	perror(path);
625			return;
626	astrand	325	}
627
628	matthewc	367	/* write licence to licence.hostname.new, then atomically rename to licence.hostname */
629	astrand	325
630	matthewc	367	sprintf(path, "%s/.rdesktop/licence.%s", home, hostname);
631			tmppath = xmalloc(strlen(path) + sizeof(".new"));
632			strcpy(tmppath, path);
633			strcat(tmppath, ".new");
634
635			fd = open(tmppath, O_WRONLY\|O_CREAT\|O_TRUNC, 0600);
636			if (fd == -1)
637	astrand	325	{
638	matthewc	367	perror(tmppath);
639			return;
640	astrand	325	}
641
642	matthewc	367	if (write(fd, data, length) != length)
643	astrand	325	{
644	matthewc	367	perror(tmppath);
645			unlink(tmppath);
646	astrand	325	}
647	matthewc	367	else if (rename(tmppath, path) == -1)
648	astrand	325	{
649	matthewc	367	perror(path);
650			unlink(tmppath);
651	astrand	325	}
652
653	matthewc	367	close(fd);
654			xfree(tmppath);
655			xfree(path);
656	astrand	325	}