seamlessrdp-branch/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 g_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 g_server_bpp = 8;
int win_button_size = 0;        /* If zero, disable single app mode */
BOOL g_bitmap_compression = True;
BOOL sendmotion = True;
BOOL g_orders = True;
BOOL g_encryption = True;
BOOL packet_encryption = True;
BOOL g_desktop_save = True;
BOOL fullscreen = False;
BOOL grab_keyboard = True;
BOOL hide_decorations = False;
BOOL g_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;
}

static void
parse_server_and_port(char *server)
{
        char *p;
#ifdef IPv6
        int addr_colons;
#endif

#ifdef IPv6
        p = server;
        addr_colons = 0;
        while (*p)
                if (*p++ == ':')
                        addr_colons++;
        if (addr_colons >= 2)
        {
                /* numeric IPv6 style address format - [1:2:3::4]:port */
                p = strchr(server, ']');
                if (*server == '[' && p != NULL)
                {
                        if (*(p + 1) == ':' && *(p + 2) != '\0')
                                tcp_port_rdp = strtol(p + 2, NULL, 10);
                        /* remove the port number and brackets from the address */
                        *p = '\0';
                        strncpy(server, server + 1, strlen(server));
                }
        }
        else
        {
                /* dns name or IPv4 style address format - server.example.com:port or 1.2.3.4:port */
                p = strchr(server, ':');
                if (p != NULL)
                {
                        tcp_port_rdp = strtol(p + 1, NULL, 10);
                        *p = 0;
                }
        }
#else /* no IPv6 support */
        p = strchr(server, ':');
        if (p != NULL)
        {
                tcp_port_rdp = strtol(p + 1, NULL, 10);
                *p = 0;
        }
#endif /* IPv6 */

}

/* 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(g_username, optarg, sizeof(g_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':
                                g_orders = False;
                                break;

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

                        case '5':
                                g_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));
        parse_server_and_port(server);

        if (!username_option)
        {
                pw = getpwuid(getuid());
                if ((pw == NULL) || (pw->pw_name == NULL))
                {
                        error("could not determine username, use -u\n");
                        return 1;
                }

                STRNCPY(g_username, pw->pw_name, sizeof(g_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)
                g_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	jsorg71	437	char g_username[16];
45	matty	10	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	438	int g_server_bpp = 8;
53	astrand	328	int win_button_size = 0; /* If zero, disable single app mode */
54	jsorg71	437	BOOL g_bitmap_compression = True;
55	matty	29	BOOL sendmotion = True;
56	jsorg71	437	BOOL g_orders = True;
57			BOOL g_encryption = True;
58	forsberg	427	BOOL packet_encryption = True;
59	jsorg71	438	BOOL g_desktop_save = True;
60	matty	28	BOOL fullscreen = False;
61	astrand	76	BOOL grab_keyboard = True;
62	astrand	262	BOOL hide_decorations = False;
63	jsorg71	438	BOOL g_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	astrand	444	static void
145			parse_server_and_port(char *server)
146			{
147			char *p;
148			#ifdef IPv6
149			int addr_colons;
150			#endif
151
152			#ifdef IPv6
153			p = server;
154			addr_colons = 0;
155			while (*p)
156			if (*p++ == ':')
157			addr_colons++;
158			if (addr_colons >= 2)
159			{
160			/* numeric IPv6 style address format - [1:2:3::4]:port */
161			p = strchr(server, ']');
162			if (*server == '[' && p != NULL)
163			{
164			if ((p + 1) == ':' && (p + 2) != '\0')
165			tcp_port_rdp = strtol(p + 2, NULL, 10);
166			/* remove the port number and brackets from the address */
167			*p = '\0';
168			strncpy(server, server + 1, strlen(server));
169			}
170			}
171			else
172			{
173			/* dns name or IPv4 style address format - server.example.com:port or 1.2.3.4:port */
174			p = strchr(server, ':');
175			if (p != NULL)
176			{
177			tcp_port_rdp = strtol(p + 1, NULL, 10);
178			*p = 0;
179			}
180			}
181			#else /* no IPv6 support */
182			p = strchr(server, ':');
183			if (p != NULL)
184			{
185			tcp_port_rdp = strtol(p + 1, NULL, 10);
186			*p = 0;
187			}
188			#endif /* IPv6 */
189
190			}
191
192	matty	10	/* Client program */
193	matty	25	int
194			main(int argc, char *argv[])
195	matty	10	{
196	matthewc	222	char server[64];
197	matty	30	char fullhostname[64];
198	matty	21	char domain[16];
199			char password[16];
200	astrand	238	char shell[128];
201	matty	21	char directory[32];
202	forsberg	424	BOOL prompt_password, rdp_retval = False;
203	matty	30	struct passwd *pw;
204			uint32 flags;
205	matthewc	222	char *p;
206	matty	10	int c;
207	astrand	289	int username_option = 0;
208	matty	10
209	matty	21	flags = RDP_LOGON_NORMAL;
210	matthewc	211	prompt_password = False;
211	matty	21	domain[0] = password[0] = shell[0] = directory[0] = 0;
212	matthewc	240	strcpy(keymapname, "en-us");
213	matty	21
214	astrand	333	#ifdef RDP2VNC
215			#define VNCOPT "V:E:"
216			#else
217			#define VNCOPT
218			#endif
219
220	forsberg	427	while ((c = getopt(argc, argv, VNCOPT "u:d:s:S:c:p:n:k:g:a:fbeEmCKT:Dh?54")) != -1)
221	matty	10	{
222			switch (c)
223			{
224	astrand	333	#ifdef RDP2VNC
225			case 'V':
226			rfb_port = strtol(optarg, NULL, 10);
227			if (rfb_port < 100)
228			rfb_port += 5900;
229			break;
230
231			case 'E':
232			defer_time = strtol(optarg, NULL, 10);
233			if (defer_time < 0)
234			defer_time = 0;
235			break;
236			#endif
237
238	matty	10	case 'u':
239	jsorg71	437	STRNCPY(g_username, optarg, sizeof(g_username));
240	astrand	289	username_option = 1;
241	matty	10	break;
242
243	matty	21	case 'd':
244	matty	30	STRNCPY(domain, optarg, sizeof(domain));
245	matty	21	break;
246
247			case 's':
248	matty	30	STRNCPY(shell, optarg, sizeof(shell));
249	matty	21	break;
250
251	astrand	328	case 'S':
252			if (!strcmp(optarg, "standard"))
253			{
254			win_button_size = 18;
255			break;
256			}
257
258			win_button_size = strtol(optarg, &p, 10);
259
260			if (*p)
261			{
262			error("invalid button size\n");
263			return 1;
264			}
265
266			break;
267
268	matty	21	case 'c':
269	matty	30	STRNCPY(directory, optarg, sizeof(directory));
270	matty	21	break;
271
272	matty	30	case 'p':
273	matthewc	211	if ((optarg[0] == '-') && (optarg[1] == 0))
274			{
275			prompt_password = True;
276			break;
277			}
278
279	matty	30	STRNCPY(password, optarg, sizeof(password));
280			flags \|= RDP_LOGON_AUTO;
281	matthewc	211
282			/* try to overwrite argument so it won't appear in ps */
283	n-ki	171	p = optarg;
284			while (*p)
285			*(p++) = 'X';
286	matty	30	break;
287
288	matty	10	case 'n':
289	matty	30	STRNCPY(hostname, optarg, sizeof(hostname));
290	matty	10	break;
291
292			case 'k':
293	astrand	82	STRNCPY(keymapname, optarg, sizeof(keymapname));
294	matty	10	break;
295
296	matty	30	case 'g':
297	astrand	263	if (!strcmp(optarg, "workarea"))
298			{
299			width = height = 0;
300			break;
301			}
302
303	matty	30	width = strtol(optarg, &p, 10);
304			if (*p == 'x')
305	astrand	64	height = strtol(p + 1, NULL, 10);
306	matty	30
307			if ((width == 0) \|\| (height == 0))
308			{
309			error("invalid geometry\n");
310			return 1;
311			}
312	matty	10	break;
313
314	matty	30	case 'f':
315			fullscreen = True;
316			break;
317
318	matty	10	case 'b':
319	jsorg71	437	g_orders = False;
320	matty	10	break;
321
322	matty	30	case 'e':
323	jsorg71	437	g_encryption = False;
324	matty	10	break;
325	astrand	435	case 'E':
326	forsberg	427	packet_encryption = False;
327			break;
328	matty	30	case 'm':
329			sendmotion = False;
330	matty	28	break;
331	matty	29
332	n-ki	279	case 'C':
333			owncolmap = True;
334			break;
335
336	astrand	76	case 'K':
337			grab_keyboard = False;
338			break;
339
340	matthewc	223	case 'T':
341	matthewc	222	STRNCPY(title, optarg, sizeof(title));
342	astrand	107	break;
343
344	astrand	262	case 'D':
345			hide_decorations = True;
346			break;
347
348	jsorg71	309	case 'a':
349	jsorg71	438	g_server_bpp = strtol(optarg, NULL, 10);
350			if (g_server_bpp != 8 && g_server_bpp != 16 && g_server_bpp != 15
351			&& g_server_bpp != 24)
352	jsorg71	309	{
353			error("invalid server bpp\n");
354			return 1;
355			}
356			break;
357
358	forsberg	350	case '5':
359	jsorg71	438	g_use_rdp5 = True;
360	forsberg	350	break;
361	matty	28	case 'h':
362	matty	10	case '?':
363			default:
364			usage(argv[0]);
365			return 1;
366			}
367			}
368
369			if (argc - optind < 1)
370			{
371			usage(argv[0]);
372			return 1;
373			}
374
375	matthewc	222	STRNCPY(server, argv[optind], sizeof(server));
376	astrand	444	parse_server_and_port(server);
377	matty	10
378	astrand	289	if (!username_option)
379	matty	10	{
380			pw = getpwuid(getuid());
381			if ((pw == NULL) \|\| (pw->pw_name == NULL))
382			{
383	matty	30	error("could not determine username, use -u\n");
384	matty	10	return 1;
385			}
386
387	jsorg71	437	STRNCPY(g_username, pw->pw_name, sizeof(g_username));
388	matty	10	}
389
390			if (hostname[0] == 0)
391			{
392	matty	30	if (gethostname(fullhostname, sizeof(fullhostname)) == -1)
393	matty	10	{
394	matty	30	error("could not determine local hostname, use -n\n");
395	matty	10	return 1;
396			}
397	matty	30
398			p = strchr(fullhostname, '.');
399			if (p != NULL)
400			*p = 0;
401
402			STRNCPY(hostname, fullhostname, sizeof(hostname));
403	matty	10	}
404
405	matthewc	211	if (prompt_password && read_password(password, sizeof(password)))
406			flags \|= RDP_LOGON_AUTO;
407	matty	30
408	matthewc	211	if (title[0] == 0)
409	astrand	107	{
410			strcpy(title, "rdesktop - ");
411			strncat(title, server, sizeof(title) - sizeof("rdesktop - "));
412			}
413	matty	12
414	astrand	333	#ifdef RDP2VNC
415			rdp2vnc_connect(server, flags, domain, password, shell, directory);
416	forsberg	424	return 0;
417	astrand	333	#else
418
419	astrand	82	if (!ui_init())
420			return 1;
421	astrand	66
422	matthewc	432	/* rdpsnd_init(); */
423			/* rdpdr_init(); */
424	forsberg	416
425	matthewc	53	if (!rdp_connect(server, flags, domain, password, shell, directory))
426			return 1;
427
428	forsberg	427	/* By setting encryption to False here, we have an encrypted login
429			packet but unencrypted transfer of other packets */
430	astrand	435	if (!packet_encryption)
431	jsorg71	437	g_encryption = False;
432	forsberg	427
433
434	matthewc	122	DEBUG(("Connection successful.\n"));
435	matthewc	211	memset(password, 0, sizeof(password));
436	matthewc	53
437	jsorg71	100	if (ui_create_window())
438	matty	10	{
439	forsberg	424	rdp_retval = rdp_main_loop();
440	matty	10	ui_destroy_window();
441			}
442
443	matthewc	122	DEBUG(("Disconnecting...\n"));
444	matthewc	53	rdp_disconnect();
445	matthewc	188	ui_deinit();
446	astrand	333
447	astrand	435	if (True == rdp_retval)
448	forsberg	424	return 0;
449			else
450			return 2;
451
452	astrand	333	#endif
453
454	matty	10	}
455
456	matthewc	220	#ifdef EGD_SOCKET
457			/* Read 32 random bytes from PRNGD or EGD socket (based on OpenSSL RAND_egd) */
458			static BOOL
459			generate_random_egd(uint8 * buf)
460			{
461			struct sockaddr_un addr;
462			BOOL ret = False;
463			int fd;
464
465			fd = socket(AF_UNIX, SOCK_STREAM, 0);
466			if (fd == -1)
467			return False;
468
469			addr.sun_family = AF_UNIX;
470			memcpy(addr.sun_path, EGD_SOCKET, sizeof(EGD_SOCKET));
471	astrand	259	if (connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1)
472	matthewc	220	goto err;
473
474			/* PRNGD and EGD use a simple communications protocol */
475	astrand	259	buf[0] = 1; /* Non-blocking (similar to /dev/urandom) */
476			buf[1] = 32; /* Number of requested random bytes */
477	matthewc	220	if (write(fd, buf, 2) != 2)
478			goto err;
479
480	astrand	259	if ((read(fd, buf, 1) != 1) \|\| (buf[0] == 0)) /* Available? */
481	matthewc	220	goto err;
482
483			if (read(fd, buf, 32) != 32)
484			goto err;
485
486			ret = True;
487
488	astrand	259	err:
489	matthewc	220	close(fd);
490			return ret;
491			}
492			#endif
493
494	matty	10	/* Generate a 32-byte random for the secure transport code. */
495	matty	25	void
496	astrand	64	generate_random(uint8 * random)
497	matty	10	{
498			struct stat st;
499	matty	22	struct tms tmsbuf;
500	matthewc	220	MD5_CTX md5;
501			uint32 *r;
502			int fd, n;
503	matty	10
504	matthewc	220	/* If we have a kernel random device, try that first */
505	matty	30	if (((fd = open("/dev/urandom", O_RDONLY)) != -1)
506			\|\| ((fd = open("/dev/random", O_RDONLY)) != -1))
507	matty	10	{
508	matthewc	220	n = read(fd, random, 32);
509	matty	10	close(fd);
510	matthewc	220	if (n == 32)
511			return;
512	matty	10	}
513
514	matthewc	220	#ifdef EGD_SOCKET
515			/* As a second preference use an EGD */
516			if (generate_random_egd(random))
517			return;
518			#endif
519
520	matty	10	/* Otherwise use whatever entropy we can gather - ideas welcome. */
521	astrand	259	r = (uint32 *) random;
522	matty	10	r[0] = (getpid()) \| (getppid() << 16);
523			r[1] = (getuid()) \| (getgid() << 16);
524	matty	24	r[2] = times(&tmsbuf); /* system uptime (clocks) */
525			gettimeofday((struct timeval ) &r[3], NULL); / sec and usec */
526	matty	10	stat("/tmp", &st);
527			r[5] = st.st_atime;
528			r[6] = st.st_mtime;
529			r[7] = st.st_ctime;
530	matthewc	220
531			/* Hash both halves with MD5 to obscure possible patterns */
532			MD5_Init(&md5);
533	astrand	259	MD5_Update(&md5, random, 16);
534	matthewc	220	MD5_Final(random, &md5);
535	astrand	259	MD5_Update(&md5, random + 16, 16);
536			MD5_Final(random + 16, &md5);
537	matty	10	}
538
539			/* malloc; exit if out of memory */
540	matty	25	void *
541			xmalloc(int size)
542	matty	10	{
543			void *mem = malloc(size);
544			if (mem == NULL)
545			{
546	matty	30	error("xmalloc %d\n", size);
547	matty	10	exit(1);
548			}
549			return mem;
550			}
551
552			/* realloc; exit if out of memory */
553	matty	25	void *
554			xrealloc(void *oldmem, int size)
555	matty	10	{
556			void *mem = realloc(oldmem, size);
557			if (mem == NULL)
558			{
559	matty	30	error("xrealloc %d\n", size);
560	matty	10	exit(1);
561			}
562			return mem;
563			}
564
565			/* free */
566	matty	25	void
567			xfree(void *mem)
568	matty	10	{
569			free(mem);
570			}
571
572	matty	30	/* report an error */
573	matty	25	void
574	matty	30	error(char *format, ...)
575			{
576			va_list ap;
577
578			fprintf(stderr, "ERROR: ");
579
580			va_start(ap, format);
581			vfprintf(stderr, format, ap);
582			va_end(ap);
583			}
584
585	matthewc	297	/* report a warning */
586			void
587			warning(char *format, ...)
588			{
589			va_list ap;
590
591			fprintf(stderr, "WARNING: ");
592
593			va_start(ap, format);
594			vfprintf(stderr, format, ap);
595			va_end(ap);
596			}
597
598	matty	30	/* report an unimplemented protocol feature */
599			void
600			unimpl(char *format, ...)
601			{
602			va_list ap;
603
604			fprintf(stderr, "NOT IMPLEMENTED: ");
605
606			va_start(ap, format);
607			vfprintf(stderr, format, ap);
608			va_end(ap);
609			}
610
611			/* produce a hex dump */
612			void
613	jsorg71	376	hexdump(unsigned char *p, int len)
614	matty	10	{
615			unsigned char *line = p;
616	jsorg71	376	int i, thisline, offset = 0;
617	matty	10
618			while (offset < len)
619			{
620	matthewc	169	printf("%04x ", offset);
621	matty	10	thisline = len - offset;
622			if (thisline > 16)
623			thisline = 16;
624
625			for (i = 0; i < thisline; i++)
626	matthewc	169	printf("%02x ", line[i]);
627	matty	10
628	matty	30	for (; i < 16; i++)
629	matthewc	169	printf(" ");
630	matty	30
631	matty	10	for (i = 0; i < thisline; i++)
632	matthewc	169	printf("%c", (line[i] >= 0x20 && line[i] < 0x7f) ? line[i] : '.');
633	matty	10
634	matthewc	169	printf("\n");
635	matty	10	offset += thisline;
636			line += thisline;
637			}
638			}
639	astrand	325
640
641			int
642			load_licence(unsigned char **data)
643			{
644	matthewc	367	char home, path;
645	astrand	325	struct stat st;
646	matthewc	367	int fd, length;
647	astrand	325
648			home = getenv("HOME");
649			if (home == NULL)
650			return -1;
651
652	forsberg	416	path = (char *) xmalloc(strlen(home) + strlen(hostname) + sizeof("/.rdesktop/licence."));
653	astrand	325	sprintf(path, "%s/.rdesktop/licence.%s", home, hostname);
654
655			fd = open(path, O_RDONLY);
656			if (fd == -1)
657			return -1;
658
659			if (fstat(fd, &st))
660			return -1;
661
662	forsberg	416	data = (uint8 ) xmalloc(st.st_size);
663	matthewc	367	length = read(fd, *data, st.st_size);
664			close(fd);
665			xfree(path);
666			return length;
667	astrand	325	}
668
669			void
670			save_licence(unsigned char *data, int length)
671			{
672	matthewc	367	char home, path, *tmppath;
673			int fd;
674	astrand	325
675			home = getenv("HOME");
676			if (home == NULL)
677			return;
678
679	forsberg	416	path = (char *) xmalloc(strlen(home) + strlen(hostname) + sizeof("/.rdesktop/licence."));
680	astrand	325
681	matthewc	367	sprintf(path, "%s/.rdesktop", home);
682			if ((mkdir(path, 0700) == -1) && errno != EEXIST)
683	astrand	325	{
684	matthewc	367	perror(path);
685			return;
686	astrand	325	}
687
688	matthewc	367	/* write licence to licence.hostname.new, then atomically rename to licence.hostname */
689	astrand	325
690	matthewc	367	sprintf(path, "%s/.rdesktop/licence.%s", home, hostname);
691	forsberg	416	tmppath = (char *) xmalloc(strlen(path) + sizeof(".new"));
692	matthewc	367	strcpy(tmppath, path);
693			strcat(tmppath, ".new");
694
695	forsberg	416	fd = open(tmppath, O_WRONLY \| O_CREAT \| O_TRUNC, 0600);
696	matthewc	367	if (fd == -1)
697	astrand	325	{
698	matthewc	367	perror(tmppath);
699			return;
700	astrand	325	}
701
702	matthewc	367	if (write(fd, data, length) != length)
703	astrand	325	{
704	matthewc	367	perror(tmppath);
705			unlink(tmppath);
706	astrand	325	}
707	matthewc	367	else if (rename(tmppath, path) == -1)
708	astrand	325	{
709	matthewc	367	perror(path);
710			unlink(tmppath);
711	astrand	325	}
712
713	matthewc	367	close(fd);
714			xfree(tmppath);
715			xfree(path);
716	astrand	325	}