ssh: R.I.P.

1 files changed, 0 insertions, 315 deletions

diff --git a/sys/src/cmd/ssh/sshserve.c b/sys/src/cmd/ssh/sshserve.c
deleted file mode 100644
index 87b0536c5..000000000
--- a/sys/src/cmd/ssh/sshserve.c
+++ /dev/null
@@ -1,315 +0,0 @@
-#include "ssh.h"
-
-char *cipherlist = "blowfish rc4 3des";
-char *authlist = "tis";
-
-void fromnet(Conn*);
-void startcmd(Conn*, char*, int*, int*);
-int maxmsg = 256*1024;
-
-Cipher *allcipher[] = {
-	&cipherrc4,
-	&cipherblowfish,
-	&cipher3des,
-	&cipherdes,
-	&ciphernone,
-	&ciphertwiddle,
-};
-
-Authsrv *allauthsrv[] = {
-	&authsrvpassword,
-	&authsrvtis,
-};
-
-Cipher*
-findcipher(char *name, Cipher **list, int nlist)
-{
-	int i;
-
-	for(i=0; i<nlist; i++)
-		if(strcmp(name, list[i]->name) == 0)
-			return list[i];
-	error("unknown cipher %s", name);
-	return nil;
-}
-
-Authsrv*
-findauthsrv(char *name, Authsrv **list, int nlist)
-{
-	int i;
-
-	for(i=0; i<nlist; i++)
-		if(strcmp(name, list[i]->name) == 0)
-			return list[i];
-	error("unknown authsrv %s", name);
-	return nil;
-}
-
-void
-usage(void)
-{
-	fprint(2, "usage: sshserve [-A authlist] [-c cipherlist] client-ip-address\n");
-	exits("usage");
-}
-
-void
-main(int argc, char **argv)
-{
-	char *f[16];
-	int i;
-	Conn c;
-
-	fmtinstall('B', mpfmt);
-	fmtinstall('H', encodefmt);
-	atexit(atexitkiller);
-	atexitkill(getpid());
-
-	memset(&c, 0, sizeof c);
-
-	ARGBEGIN{
-	case 'D':
-		debuglevel = atoi(EARGF(usage()));
-		break;
-	case 'A':
-		authlist = EARGF(usage());
-		break;
-	case 'c':
-		cipherlist = EARGF(usage());
-		break;
-	default:
-		usage();
-	}ARGEND
-
-	if(argc != 1)
-		usage();
-	c.host = argv[0];
-
-	sshlog("connect from %s", c.host);
-
-	/* limit of 768 bits in remote host key? */
-	c.serverpriv = rsagen(768, 6, 0);
-	if(c.serverpriv == nil)
-		sysfatal("rsagen failed: %r");
-	c.serverkey = &c.serverpriv->pub;
-
-	c.nokcipher = getfields(cipherlist, f, nelem(f), 1, ", ");
-	c.okcipher = emalloc(sizeof(Cipher*)*c.nokcipher);
-	for(i=0; i<c.nokcipher; i++)
-		c.okcipher[i] = findcipher(f[i], allcipher, nelem(allcipher));
-
-	c.nokauthsrv = getfields(authlist, f, nelem(f), 1, ", ");
-	c.okauthsrv = emalloc(sizeof(Authsrv*)*c.nokauthsrv);
-	for(i=0; i<c.nokauthsrv; i++)
-		c.okauthsrv[i] = findauthsrv(f[i], allauthsrv, nelem(allauthsrv));
-
-	sshserverhandshake(&c);
-
-	fromnet(&c);
-}
-
-void
-fromnet(Conn *c)
-{
-	int infd, kidpid, n;
-	char *cmd;
-	Msg *m;
-
-	infd = kidpid = -1;
-	for(;;){
-		m = recvmsg(c, -1);
-		if(m == nil)
-			exits(nil);
-		switch(m->type){
-		default:
-			//badmsg(m, 0);
-			sendmsg(allocmsg(c, SSH_SMSG_FAILURE, 0));
-			break;
-
-		case SSH_MSG_DISCONNECT:
-			sysfatal("client disconnected");
-
-		case SSH_CMSG_REQUEST_PTY:
-			sendmsg(allocmsg(c, SSH_SMSG_SUCCESS, 0));
-			break;
-
-		case SSH_CMSG_X11_REQUEST_FORWARDING:
-			sendmsg(allocmsg(c, SSH_SMSG_FAILURE, 0));
-			break;
-
-		case SSH_CMSG_MAX_PACKET_SIZE:
-			maxmsg = getlong(m);
-			sendmsg(allocmsg(c, SSH_SMSG_SUCCESS, 0));
-			break;
-
-		case SSH_CMSG_REQUEST_COMPRESSION:
-			sendmsg(allocmsg(c, SSH_SMSG_FAILURE, 0));
-			break;
-
-		case SSH_CMSG_EXEC_SHELL:
-			startcmd(c, nil, &kidpid, &infd);
-			goto InteractiveMode;
-
-		case SSH_CMSG_EXEC_CMD:
-			cmd = getstring(m);
-			startcmd(c, cmd, &kidpid, &infd);
-			goto InteractiveMode;
-		}
-		free(m);
-	}
-
-InteractiveMode:
-	for(;;){
-		free(m);
-		m = recvmsg(c, -1);
-		if(m == nil)
-			exits(nil);
-		switch(m->type){
-		default:
-			badmsg(m, 0);
-
-		case SSH_MSG_DISCONNECT:
-			postnote(PNGROUP, kidpid, "hangup");
-			sysfatal("client disconnected");
-
-		case SSH_CMSG_STDIN_DATA:
-			if(infd != 0){
-				n = getlong(m);
-				write(infd, getbytes(m, n), n);
-			}
-			break;
-
-		case SSH_CMSG_EOF:
-			close(infd);
-			infd = -1;
-			break;
-
-		case SSH_CMSG_EXIT_CONFIRMATION:
-			/* sent by some clients as dying breath */
-			exits(nil);
-	
-		case SSH_CMSG_WINDOW_SIZE:
-			/* we don't care */
-			break;
-		}
-	}
-}
-
-void
-copyout(Conn *c, int fd, int mtype)
-{
-	char buf[8192];
-	int n, max, pid;
-	Msg *m;
-
-	max = sizeof buf;
-	if(max > maxmsg - 32)	/* 32 is an overestimate of packet overhead */
-		max = maxmsg - 32;
-	if(max <= 0)
-		sysfatal("maximum message size too small");
-	
-	switch(pid = rfork(RFPROC|RFMEM|RFNOWAIT)){
-	case -1:
-		sysfatal("fork: %r");
-	case 0:
-		break;
-	default:
-		atexitkill(pid);
-		return;
-	}
-
-	while((n = read(fd, buf, max)) > 0){
-		m = allocmsg(c, mtype, 4+n);
-		putlong(m, n);
-		putbytes(m, buf, n);
-		sendmsg(m);
-	}
-	exits(nil);
-}
-
-void
-startcmd(Conn *c, char *cmd, int *kidpid, int *kidin)
-{
-	int i, pid, kpid;
-	int pfd[3][2];
-	char *dir;
-	char *sysname, *tz;
-	Msg *m;
-	Waitmsg *w;
-
-	for(i=0; i<3; i++)
-		if(pipe(pfd[i]) < 0)
-			sysfatal("pipe: %r");
-
-	sysname = getenv("sysname");
-	tz = getenv("timezone");
-
-	switch(pid = rfork(RFPROC|RFMEM|RFNOWAIT)){
-	case -1:
-		sysfatal("fork: %r");
-	case 0:
-		switch(kpid = rfork(RFPROC|RFNOTEG|RFENVG|RFFDG)){
-		case -1:
-			sysfatal("fork: %r");
-		case 0:
-			for(i=0; i<3; i++){
-				if(dup(pfd[i][1], i) < 0)
-					sysfatal("dup: %r");
-				close(pfd[i][0]);
-				close(pfd[i][1]);
-			}
-			putenv("user", c->user);
-			if(sysname)
-				putenv("sysname", sysname);
-			if(tz)
-				putenv("tz", tz);
-	
-			dir = smprint("/usr/%s", c->user);
-			if(dir == nil || chdir(dir) < 0)
-				chdir("/");
-			if(cmd){
-				putenv("service", "rx");
-				execl("/bin/rc", "rc", "-lc", cmd, nil);
-				sysfatal("cannot exec /bin/rc: %r");
-			}else{
-				putenv("service", "con");
-				execl("/bin/ip/telnetd", "telnetd", "-tn", nil);
-				sysfatal("cannot exec /bin/ip/telnetd: %r");
-			}
-		default:
-			*kidpid = kpid;
-			rendezvous(kidpid, 0);
-			for(;;){
-				if((w = wait()) == nil)
-					sysfatal("wait: %r");
-				if(w->pid == kpid)
-					break;
-				free(w);
-			}
-			if(w->msg[0]){
-				m = allocmsg(c, SSH_MSG_DISCONNECT, 4+strlen(w->msg));
-				putstring(m, w->msg);
-				sendmsg(m);
-			}else{
-				m = allocmsg(c, SSH_SMSG_EXITSTATUS, 4);
-				putlong(m, 0);
-				sendmsg(m);
-			}
-			for(i=0; i<3; i++)
-				close(pfd[i][0]);
-			free(w);
-			exits(nil);	
-			break;
-		}
-	default:
-		atexitkill(pid);
-		rendezvous(kidpid, 0);
-		break;
-	}
-
-	for(i=0; i<3; i++)
-		close(pfd[i][1]);
-
-	copyout(c, pfd[1][0], SSH_SMSG_STDOUT_DATA);
-	copyout(c, pfd[2][0], SSH_SMSG_STDERR_DATA);
-	*kidin = pfd[0][0];
-}