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 packet_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, "   -E: disable encryption of everything but the logon packet\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, rdp_retval = False;
        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:fbeEmCKT: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 'E':
                                packet_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);
        return 0;
#else

        if (!ui_init())
                return 1;

        /* rdpsnd_init(); */
        /* rdpdr_init(); */

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

        /* By setting encryption to False here, we have an encrypted login 
           packet but unencrypted transfer of other packets */
        if (!packet_encryption)
                encryption = False;


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

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

        DEBUG(("Disconnecting...\n"));
        rdp_disconnect();
        ui_deinit();

        if (True == rdp_retval)
                return 0;
        else
                return 2;

#endif

}

#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, int len)
{
        unsigned char *line = p;
        int i, thisline, offset = 0;

        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 = (char *) 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 = (uint8 *) 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 = (char *) 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 = (char *) 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	forsberg	427	BOOL packet_encryption = True;
59	matty	28	BOOL desktop_save = True;
60			BOOL fullscreen = False;
61	astrand	76	BOOL grab_keyboard = True;
62	astrand	262	BOOL hide_decorations = False;
63	forsberg	350	BOOL use_rdp5 = False;
64	n-ki	279	extern BOOL owncolmap;
65	matty	10
66	astrand	333	#ifdef RDP2VNC
67			extern int rfb_port;
68			extern int defer_time;
69			void
70			rdp2vnc_connect(char server, uint32 flags, char domain, char *password,
71			char shell, char directory);
72			#endif
73	matty	10	/* Display usage information */
74	matty	25	static void
75			usage(char *program)
76	matty	10	{
77	matthewc	122	fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n");
78	matthewc	304	fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2003 Matt Chapman.\n");
79	matthewc	122	fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n");
80
81	matthewc	222	fprintf(stderr, "Usage: %s [options] server[:port]\n", program);
82	astrand	333	#ifdef RDP2VNC
83			fprintf(stderr, " -V: vnc port\n");
84			fprintf(stderr, " -E: defer time (ms)\n");
85			#endif
86	astrand	111	fprintf(stderr, " -u: user name\n");
87			fprintf(stderr, " -d: domain\n");
88			fprintf(stderr, " -s: shell\n");
89	astrand	329	fprintf(stderr, " -S: caption button size (single application mode)\n");
90	astrand	111	fprintf(stderr, " -c: working directory\n");
91	matthewc	211	fprintf(stderr, " -p: password (- to prompt)\n");
92	astrand	111	fprintf(stderr, " -n: client hostname\n");
93	matthewc	223	fprintf(stderr, " -k: keyboard layout on terminal server (us,sv,gr,etc.)\n");
94	astrand	111	fprintf(stderr, " -g: desktop geometry (WxH)\n");
95			fprintf(stderr, " -f: full-screen mode\n");
96			fprintf(stderr, " -b: force bitmap updates\n");
97			fprintf(stderr, " -e: disable encryption (French TS)\n");
98	forsberg	427	fprintf(stderr, " -E: disable encryption of everything but the logon packet\n");
99	astrand	111	fprintf(stderr, " -m: do not send motion events\n");
100	n-ki	279	fprintf(stderr, " -C: use private colour map\n");
101	astrand	111	fprintf(stderr, " -K: keep window manager key bindings\n");
102	matthewc	223	fprintf(stderr, " -T: window title\n");
103	astrand	262	fprintf(stderr, " -D: hide window manager decorations\n");
104	jsorg71	309	fprintf(stderr, " -a: server bpp\n");
105	forsberg	350	fprintf(stderr, " -5: Use RDP5 (EXPERIMENTAL!)\n");
106	matty	10	}
107
108	matthewc	211	static BOOL
109			read_password(char *password, int size)
110			{
111			struct termios tios;
112			BOOL ret = False;
113			int istty = 0;
114			char *p;
115
116			if (tcgetattr(STDIN_FILENO, &tios) == 0)
117			{
118			fprintf(stderr, "Password: ");
119			tios.c_lflag &= ~ECHO;
120			tcsetattr(STDIN_FILENO, TCSANOW, &tios);
121			istty = 1;
122			}
123
124			if (fgets(password, size, stdin) != NULL)
125			{
126			ret = True;
127
128			/* strip final newline */
129			p = strchr(password, '\n');
130			if (p != NULL)
131			*p = 0;
132			}
133
134			if (istty)
135			{
136			tios.c_lflag \|= ECHO;
137			tcsetattr(STDIN_FILENO, TCSANOW, &tios);
138			fprintf(stderr, "\n");
139			}
140
141			return ret;
142			}
143
144	matty	10	/* Client program */
145	matty	25	int
146			main(int argc, char *argv[])
147	matty	10	{
148	matthewc	222	char server[64];
149	matty	30	char fullhostname[64];
150	matty	21	char domain[16];
151			char password[16];
152	astrand	238	char shell[128];
153	matty	21	char directory[32];
154	forsberg	424	BOOL prompt_password, rdp_retval = False;
155	matty	30	struct passwd *pw;
156			uint32 flags;
157	matthewc	222	char *p;
158	matty	10	int c;
159	astrand	289	int username_option = 0;
160	matty	10
161	matty	21	flags = RDP_LOGON_NORMAL;
162	matthewc	211	prompt_password = False;
163	matty	21	domain[0] = password[0] = shell[0] = directory[0] = 0;
164	matthewc	240	strcpy(keymapname, "en-us");
165	matty	21
166	astrand	333	#ifdef RDP2VNC
167			#define VNCOPT "V:E:"
168			#else
169			#define VNCOPT
170			#endif
171
172	forsberg	427	while ((c = getopt(argc, argv, VNCOPT "u:d:s:S:c:p:n:k:g:a:fbeEmCKT:Dh?54")) != -1)
173	matty	10	{
174			switch (c)
175			{
176	astrand	333	#ifdef RDP2VNC
177			case 'V':
178			rfb_port = strtol(optarg, NULL, 10);
179			if (rfb_port < 100)
180			rfb_port += 5900;
181			break;
182
183			case 'E':
184			defer_time = strtol(optarg, NULL, 10);
185			if (defer_time < 0)
186			defer_time = 0;
187			break;
188			#endif
189
190	matty	10	case 'u':
191	matty	30	STRNCPY(username, optarg, sizeof(username));
192	astrand	289	username_option = 1;
193	matty	10	break;
194
195	matty	21	case 'd':
196	matty	30	STRNCPY(domain, optarg, sizeof(domain));
197	matty	21	break;
198
199			case 's':
200	matty	30	STRNCPY(shell, optarg, sizeof(shell));
201	matty	21	break;
202
203	astrand	328	case 'S':
204			if (!strcmp(optarg, "standard"))
205			{
206			win_button_size = 18;
207			break;
208			}
209
210			win_button_size = strtol(optarg, &p, 10);
211
212			if (*p)
213			{
214			error("invalid button size\n");
215			return 1;
216			}
217
218			break;
219
220	matty	21	case 'c':
221	matty	30	STRNCPY(directory, optarg, sizeof(directory));
222	matty	21	break;
223
224	matty	30	case 'p':
225	matthewc	211	if ((optarg[0] == '-') && (optarg[1] == 0))
226			{
227			prompt_password = True;
228			break;
229			}
230
231	matty	30	STRNCPY(password, optarg, sizeof(password));
232			flags \|= RDP_LOGON_AUTO;
233	matthewc	211
234			/* try to overwrite argument so it won't appear in ps */
235	n-ki	171	p = optarg;
236			while (*p)
237			*(p++) = 'X';
238	matty	30	break;
239
240	matty	10	case 'n':
241	matty	30	STRNCPY(hostname, optarg, sizeof(hostname));
242	matty	10	break;
243
244			case 'k':
245	astrand	82	STRNCPY(keymapname, optarg, sizeof(keymapname));
246	matty	10	break;
247
248	matty	30	case 'g':
249	astrand	263	if (!strcmp(optarg, "workarea"))
250			{
251			width = height = 0;
252			break;
253			}
254
255	matty	30	width = strtol(optarg, &p, 10);
256			if (*p == 'x')
257	astrand	64	height = strtol(p + 1, NULL, 10);
258	matty	30
259			if ((width == 0) \|\| (height == 0))
260			{
261			error("invalid geometry\n");
262			return 1;
263			}
264	matty	10	break;
265
266	matty	30	case 'f':
267			fullscreen = True;
268			break;
269
270	matty	10	case 'b':
271			orders = False;
272			break;
273
274	matty	30	case 'e':
275			encryption = False;
276	matty	10	break;
277	astrand	435	case 'E':
278	forsberg	427	packet_encryption = False;
279			break;
280	matty	30	case 'm':
281			sendmotion = False;
282	matty	28	break;
283	matty	29
284	n-ki	279	case 'C':
285			owncolmap = True;
286			break;
287
288	astrand	76	case 'K':
289			grab_keyboard = False;
290			break;
291
292	matthewc	223	case 'T':
293	matthewc	222	STRNCPY(title, optarg, sizeof(title));
294	astrand	107	break;
295
296	astrand	262	case 'D':
297			hide_decorations = True;
298			break;
299
300	jsorg71	309	case 'a':
301			server_bpp = strtol(optarg, NULL, 10);
302	astrand	318	if (server_bpp != 8 && server_bpp != 16 && server_bpp != 15
303			&& server_bpp != 24)
304	jsorg71	309	{
305			error("invalid server bpp\n");
306			return 1;
307			}
308			break;
309
310	forsberg	350	case '5':
311			use_rdp5 = True;
312			break;
313	matty	28	case 'h':
314	matty	10	case '?':
315			default:
316			usage(argv[0]);
317			return 1;
318			}
319			}
320
321			if (argc - optind < 1)
322			{
323			usage(argv[0]);
324			return 1;
325			}
326
327	matthewc	222	STRNCPY(server, argv[optind], sizeof(server));
328			p = strchr(server, ':');
329			if (p != NULL)
330			{
331			tcp_port_rdp = strtol(p + 1, NULL, 10);
332			*p = 0;
333			}
334	matty	10
335	astrand	289	if (!username_option)
336	matty	10	{
337			pw = getpwuid(getuid());
338			if ((pw == NULL) \|\| (pw->pw_name == NULL))
339			{
340	matty	30	error("could not determine username, use -u\n");
341	matty	10	return 1;
342			}
343
344	matty	30	STRNCPY(username, pw->pw_name, sizeof(username));
345	matty	10	}
346
347			if (hostname[0] == 0)
348			{
349	matty	30	if (gethostname(fullhostname, sizeof(fullhostname)) == -1)
350	matty	10	{
351	matty	30	error("could not determine local hostname, use -n\n");
352	matty	10	return 1;
353			}
354	matty	30
355			p = strchr(fullhostname, '.');
356			if (p != NULL)
357			*p = 0;
358
359			STRNCPY(hostname, fullhostname, sizeof(hostname));
360	matty	10	}
361
362	matthewc	211	if (prompt_password && read_password(password, sizeof(password)))
363			flags \|= RDP_LOGON_AUTO;
364	matty	30
365	matthewc	211	if (title[0] == 0)
366	astrand	107	{
367			strcpy(title, "rdesktop - ");
368			strncat(title, server, sizeof(title) - sizeof("rdesktop - "));
369			}
370	matty	12
371	astrand	333	#ifdef RDP2VNC
372			rdp2vnc_connect(server, flags, domain, password, shell, directory);
373	forsberg	424	return 0;
374	astrand	333	#else
375
376	astrand	82	if (!ui_init())
377			return 1;
378	astrand	66
379	matthewc	432	/* rdpsnd_init(); */
380			/* rdpdr_init(); */
381	forsberg	416
382	matthewc	53	if (!rdp_connect(server, flags, domain, password, shell, directory))
383			return 1;
384
385	forsberg	427	/* By setting encryption to False here, we have an encrypted login
386			packet but unencrypted transfer of other packets */
387	astrand	435	if (!packet_encryption)
388	forsberg	427	encryption = False;
389
390
391	matthewc	122	DEBUG(("Connection successful.\n"));
392	matthewc	211	memset(password, 0, sizeof(password));
393	matthewc	53
394	jsorg71	100	if (ui_create_window())
395	matty	10	{
396	forsberg	424	rdp_retval = rdp_main_loop();
397	matty	10	ui_destroy_window();
398			}
399
400	matthewc	122	DEBUG(("Disconnecting...\n"));
401	matthewc	53	rdp_disconnect();
402	matthewc	188	ui_deinit();
403	astrand	333
404	astrand	435	if (True == rdp_retval)
405	forsberg	424	return 0;
406			else
407			return 2;
408
409	astrand	333	#endif
410
411	matty	10	}
412
413	matthewc	220	#ifdef EGD_SOCKET
414			/* Read 32 random bytes from PRNGD or EGD socket (based on OpenSSL RAND_egd) */
415			static BOOL
416			generate_random_egd(uint8 * buf)
417			{
418			struct sockaddr_un addr;
419			BOOL ret = False;
420			int fd;
421
422			fd = socket(AF_UNIX, SOCK_STREAM, 0);
423			if (fd == -1)
424			return False;
425
426			addr.sun_family = AF_UNIX;
427			memcpy(addr.sun_path, EGD_SOCKET, sizeof(EGD_SOCKET));
428	astrand	259	if (connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1)
429	matthewc	220	goto err;
430
431			/* PRNGD and EGD use a simple communications protocol */
432	astrand	259	buf[0] = 1; /* Non-blocking (similar to /dev/urandom) */
433			buf[1] = 32; /* Number of requested random bytes */
434	matthewc	220	if (write(fd, buf, 2) != 2)
435			goto err;
436
437	astrand	259	if ((read(fd, buf, 1) != 1) \|\| (buf[0] == 0)) /* Available? */
438	matthewc	220	goto err;
439
440			if (read(fd, buf, 32) != 32)
441			goto err;
442
443			ret = True;
444
445	astrand	259	err:
446	matthewc	220	close(fd);
447			return ret;
448			}
449			#endif
450
451	matty	10	/* Generate a 32-byte random for the secure transport code. */
452	matty	25	void
453	astrand	64	generate_random(uint8 * random)
454	matty	10	{
455			struct stat st;
456	matty	22	struct tms tmsbuf;
457	matthewc	220	MD5_CTX md5;
458			uint32 *r;
459			int fd, n;
460	matty	10
461	matthewc	220	/* If we have a kernel random device, try that first */
462	matty	30	if (((fd = open("/dev/urandom", O_RDONLY)) != -1)
463			\|\| ((fd = open("/dev/random", O_RDONLY)) != -1))
464	matty	10	{
465	matthewc	220	n = read(fd, random, 32);
466	matty	10	close(fd);
467	matthewc	220	if (n == 32)
468			return;
469	matty	10	}
470
471	matthewc	220	#ifdef EGD_SOCKET
472			/* As a second preference use an EGD */
473			if (generate_random_egd(random))
474			return;
475			#endif
476
477	matty	10	/* Otherwise use whatever entropy we can gather - ideas welcome. */
478	astrand	259	r = (uint32 *) random;
479	matty	10	r[0] = (getpid()) \| (getppid() << 16);
480			r[1] = (getuid()) \| (getgid() << 16);
481	matty	24	r[2] = times(&tmsbuf); /* system uptime (clocks) */
482			gettimeofday((struct timeval ) &r[3], NULL); / sec and usec */
483	matty	10	stat("/tmp", &st);
484			r[5] = st.st_atime;
485			r[6] = st.st_mtime;
486			r[7] = st.st_ctime;
487	matthewc	220
488			/* Hash both halves with MD5 to obscure possible patterns */
489			MD5_Init(&md5);
490	astrand	259	MD5_Update(&md5, random, 16);
491	matthewc	220	MD5_Final(random, &md5);
492	astrand	259	MD5_Update(&md5, random + 16, 16);
493			MD5_Final(random + 16, &md5);
494	matty	10	}
495
496			/* malloc; exit if out of memory */
497	matty	25	void *
498			xmalloc(int size)
499	matty	10	{
500			void *mem = malloc(size);
501			if (mem == NULL)
502			{
503	matty	30	error("xmalloc %d\n", size);
504	matty	10	exit(1);
505			}
506			return mem;
507			}
508
509			/* realloc; exit if out of memory */
510	matty	25	void *
511			xrealloc(void *oldmem, int size)
512	matty	10	{
513			void *mem = realloc(oldmem, size);
514			if (mem == NULL)
515			{
516	matty	30	error("xrealloc %d\n", size);
517	matty	10	exit(1);
518			}
519			return mem;
520			}
521
522			/* free */
523	matty	25	void
524			xfree(void *mem)
525	matty	10	{
526			free(mem);
527			}
528
529	matty	30	/* report an error */
530	matty	25	void
531	matty	30	error(char *format, ...)
532			{
533			va_list ap;
534
535			fprintf(stderr, "ERROR: ");
536
537			va_start(ap, format);
538			vfprintf(stderr, format, ap);
539			va_end(ap);
540			}
541
542	matthewc	297	/* report a warning */
543			void
544			warning(char *format, ...)
545			{
546			va_list ap;
547
548			fprintf(stderr, "WARNING: ");
549
550			va_start(ap, format);
551			vfprintf(stderr, format, ap);
552			va_end(ap);
553			}
554
555	matty	30	/* report an unimplemented protocol feature */
556			void
557			unimpl(char *format, ...)
558			{
559			va_list ap;
560
561			fprintf(stderr, "NOT IMPLEMENTED: ");
562
563			va_start(ap, format);
564			vfprintf(stderr, format, ap);
565			va_end(ap);
566			}
567
568			/* produce a hex dump */
569			void
570	jsorg71	376	hexdump(unsigned char *p, int len)
571	matty	10	{
572			unsigned char *line = p;
573	jsorg71	376	int i, thisline, offset = 0;
574	matty	10
575			while (offset < len)
576			{
577	matthewc	169	printf("%04x ", offset);
578	matty	10	thisline = len - offset;
579			if (thisline > 16)
580			thisline = 16;
581
582			for (i = 0; i < thisline; i++)
583	matthewc	169	printf("%02x ", line[i]);
584	matty	10
585	matty	30	for (; i < 16; i++)
586	matthewc	169	printf(" ");
587	matty	30
588	matty	10	for (i = 0; i < thisline; i++)
589	matthewc	169	printf("%c", (line[i] >= 0x20 && line[i] < 0x7f) ? line[i] : '.');
590	matty	10
591	matthewc	169	printf("\n");
592	matty	10	offset += thisline;
593			line += thisline;
594			}
595			}
596	astrand	325
597
598			int
599			load_licence(unsigned char **data)
600			{
601	matthewc	367	char home, path;
602	astrand	325	struct stat st;
603	matthewc	367	int fd, length;
604	astrand	325
605			home = getenv("HOME");
606			if (home == NULL)
607			return -1;
608
609	forsberg	416	path = (char *) xmalloc(strlen(home) + strlen(hostname) + sizeof("/.rdesktop/licence."));
610	astrand	325	sprintf(path, "%s/.rdesktop/licence.%s", home, hostname);
611
612			fd = open(path, O_RDONLY);
613			if (fd == -1)
614			return -1;
615
616			if (fstat(fd, &st))
617			return -1;
618
619	forsberg	416	data = (uint8 ) xmalloc(st.st_size);
620	matthewc	367	length = read(fd, *data, st.st_size);
621			close(fd);
622			xfree(path);
623			return length;
624	astrand	325	}
625
626			void
627			save_licence(unsigned char *data, int length)
628			{
629	matthewc	367	char home, path, *tmppath;
630			int fd;
631	astrand	325
632			home = getenv("HOME");
633			if (home == NULL)
634			return;
635
636	forsberg	416	path = (char *) xmalloc(strlen(home) + strlen(hostname) + sizeof("/.rdesktop/licence."));
637	astrand	325
638	matthewc	367	sprintf(path, "%s/.rdesktop", home);
639			if ((mkdir(path, 0700) == -1) && errno != EEXIST)
640	astrand	325	{
641	matthewc	367	perror(path);
642			return;
643	astrand	325	}
644
645	matthewc	367	/* write licence to licence.hostname.new, then atomically rename to licence.hostname */
646	astrand	325
647	matthewc	367	sprintf(path, "%s/.rdesktop/licence.%s", home, hostname);
648	forsberg	416	tmppath = (char *) xmalloc(strlen(path) + sizeof(".new"));
649	matthewc	367	strcpy(tmppath, path);
650			strcat(tmppath, ".new");
651
652	forsberg	416	fd = open(tmppath, O_WRONLY \| O_CREAT \| O_TRUNC, 0600);
653	matthewc	367	if (fd == -1)
654	astrand	325	{
655	matthewc	367	perror(tmppath);
656			return;
657	astrand	325	}
658
659	matthewc	367	if (write(fd, data, length) != length)
660	astrand	325	{
661	matthewc	367	perror(tmppath);
662			unlink(tmppath);
663	astrand	325	}
664	matthewc	367	else if (rename(tmppath, path) == -1)
665	astrand	325	{
666	matthewc	367	perror(path);
667			unlink(tmppath);
668	astrand	325	}
669
670	matthewc	367	close(fd);
671			xfree(tmppath);
672			xfree(path);
673	astrand	325	}