openssh/ssh-keyscan.c

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/*
* Copyright 1995, 1996 by David Mazieres <dm@lcs.mit.edu>.
*
* Modification and redistribution in source and binary forms is
* permitted provided that due credit is given to the author and the
* OpenBSD project (for instance by leaving this copyright notice
* intact).
*/
#include "includes.h"
Hopefully things did not get mixed around too much. It compiles under Linux and works. So that is at least a good sign. =) 20010122 - (bal) OpenBSD Resync - markus@cvs.openbsd.org 2001/01/19 12:45:26 GMT 2001 by markus [servconf.c ssh.h sshd.c] only auth-chall.c needs #ifdef SKEY - markus@cvs.openbsd.org 2001/01/19 15:55:10 GMT 2001 by markus [auth-krb4.c auth-options.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c auth1.c auth2.c channels.c clientloop.c dh.c dispatch.c nchan.c packet.c pathname.h readconf.c scp.c servconf.c serverloop.c session.c ssh-add.c ssh-keygen.c ssh-keyscan.c ssh.c ssh.h ssh1.h sshconnect1.c sshd.c ttymodes.c] move ssh1 definitions to ssh1.h, pathnames to pathnames.h - markus@cvs.openbsd.org 2001/01/19 16:48:14 [sshd.8] fix typo; from stevesk@ - markus@cvs.openbsd.org 2001/01/19 16:50:58 [ssh-dss.c] clear and free digest, make consistent with other code (use dlen); from stevesk@ - markus@cvs.openbsd.org 2001/01/20 15:55:20 GMT 2001 by markus [auth-options.c auth-options.h auth-rsa.c auth2.c] pass the filename to auth_parse_options() - markus@cvs.openbsd.org 2001/01/20 17:59:40 GMT 2001 [readconf.c] fix SIGSEGV from -o ""; problem noted by jehsom@togetherweb.com - stevesk@cvs.openbsd.org 2001/01/20 18:20:29 [sshconnect2.c] dh_new_group() does not return NULL. ok markus@ - markus@cvs.openbsd.org 2001/01/20 21:33:42 [ssh-add.c] do not loop forever if askpass does not exist; from andrew@pimlott.ne.mediaone.net - djm@cvs.openbsd.org 2001/01/20 23:00:56 [servconf.c] Check for NULL return from strdelim; ok markus - djm@cvs.openbsd.org 2001/01/20 23:02:07 [readconf.c] KNF; ok markus - jakob@cvs.openbsd.org 2001/01/21 9:00:33 [ssh-keygen.1] remove -R flag; ok markus@ - markus@cvs.openbsd.org 2001/01/21 19:05:40 [atomicio.c automicio.h auth-chall.c auth-krb4.c auth-options.c auth-options.h auth-passwd.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c auth.c auth.h auth1.c auth2-chall.c auth2.c authfd.c authfile.c bufaux.c bufaux.h buffer.c canahost.c canahost.h channels.c cipher.c cli.c clientloop.c clientloop.h compat.c compress.c deattack.c dh.c dispatch.c groupaccess.c hmac.c hostfile.c kex.c key.c key.h log-client.c log-server.c log.c log.h login.c login.h match.c misc.c misc.h nchan.c packet.c pty.c radix.h readconf.c readpass.c readpass.h rsa.c scp.c servconf.c serverloop.c serverloop.h session.c sftp-server.c ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c ssh-rsa.c ssh.c ssh.h sshconnect.c sshconnect.h sshconnect1.c sshconnect2.c sshd.c tildexpand.c tildexpand.h ttysmodes.c uidswap.c xmalloc.c] split ssh.h and try to cleanup the #include mess. remove unnecessary #includes. rename util.[ch] -> misc.[ch] - (bal) renamed 'PIDDIR' to '_PATH_SSH_PIDDIR' to match OpenBSD tree - (bal) Moved #ifdef KRB4 in auth-krb4.c above the #include to resolve conflict when compiling for non-kerb install - (bal) removed the #ifdef SKEY in auth1.c to match Markus' changes on 1/19.
2001-01-22 05:34:40 +00:00
RCSID("$OpenBSD: ssh-keyscan.c,v 1.11 2001/01/21 19:05:57 markus Exp $");
#if defined(HAVE_SYS_QUEUE_H) && !defined(HAVE_BOGUS_SYS_QUEUE_H)
#include <sys/queue.h>
#else
#include "bsd-queue.h"
#endif
#include <errno.h>
#include <openssl/bn.h>
#include "xmalloc.h"
#include "ssh.h"
Hopefully things did not get mixed around too much. It compiles under Linux and works. So that is at least a good sign. =) 20010122 - (bal) OpenBSD Resync - markus@cvs.openbsd.org 2001/01/19 12:45:26 GMT 2001 by markus [servconf.c ssh.h sshd.c] only auth-chall.c needs #ifdef SKEY - markus@cvs.openbsd.org 2001/01/19 15:55:10 GMT 2001 by markus [auth-krb4.c auth-options.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c auth1.c auth2.c channels.c clientloop.c dh.c dispatch.c nchan.c packet.c pathname.h readconf.c scp.c servconf.c serverloop.c session.c ssh-add.c ssh-keygen.c ssh-keyscan.c ssh.c ssh.h ssh1.h sshconnect1.c sshd.c ttymodes.c] move ssh1 definitions to ssh1.h, pathnames to pathnames.h - markus@cvs.openbsd.org 2001/01/19 16:48:14 [sshd.8] fix typo; from stevesk@ - markus@cvs.openbsd.org 2001/01/19 16:50:58 [ssh-dss.c] clear and free digest, make consistent with other code (use dlen); from stevesk@ - markus@cvs.openbsd.org 2001/01/20 15:55:20 GMT 2001 by markus [auth-options.c auth-options.h auth-rsa.c auth2.c] pass the filename to auth_parse_options() - markus@cvs.openbsd.org 2001/01/20 17:59:40 GMT 2001 [readconf.c] fix SIGSEGV from -o ""; problem noted by jehsom@togetherweb.com - stevesk@cvs.openbsd.org 2001/01/20 18:20:29 [sshconnect2.c] dh_new_group() does not return NULL. ok markus@ - markus@cvs.openbsd.org 2001/01/20 21:33:42 [ssh-add.c] do not loop forever if askpass does not exist; from andrew@pimlott.ne.mediaone.net - djm@cvs.openbsd.org 2001/01/20 23:00:56 [servconf.c] Check for NULL return from strdelim; ok markus - djm@cvs.openbsd.org 2001/01/20 23:02:07 [readconf.c] KNF; ok markus - jakob@cvs.openbsd.org 2001/01/21 9:00:33 [ssh-keygen.1] remove -R flag; ok markus@ - markus@cvs.openbsd.org 2001/01/21 19:05:40 [atomicio.c automicio.h auth-chall.c auth-krb4.c auth-options.c auth-options.h auth-passwd.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c auth.c auth.h auth1.c auth2-chall.c auth2.c authfd.c authfile.c bufaux.c bufaux.h buffer.c canahost.c canahost.h channels.c cipher.c cli.c clientloop.c clientloop.h compat.c compress.c deattack.c dh.c dispatch.c groupaccess.c hmac.c hostfile.c kex.c key.c key.h log-client.c log-server.c log.c log.h login.c login.h match.c misc.c misc.h nchan.c packet.c pty.c radix.h readconf.c readpass.c readpass.h rsa.c scp.c servconf.c serverloop.c serverloop.h session.c sftp-server.c ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c ssh-rsa.c ssh.c ssh.h sshconnect.c sshconnect.h sshconnect1.c sshconnect2.c sshd.c tildexpand.c tildexpand.h ttysmodes.c uidswap.c xmalloc.c] split ssh.h and try to cleanup the #include mess. remove unnecessary #includes. rename util.[ch] -> misc.[ch] - (bal) renamed 'PIDDIR' to '_PATH_SSH_PIDDIR' to match OpenBSD tree - (bal) Moved #ifdef KRB4 in auth-krb4.c above the #include to resolve conflict when compiling for non-kerb install - (bal) removed the #ifdef SKEY in auth1.c to match Markus' changes on 1/19.
2001-01-22 05:34:40 +00:00
#include "ssh1.h"
#include "key.h"
#include "buffer.h"
#include "bufaux.h"
Hopefully things did not get mixed around too much. It compiles under Linux and works. So that is at least a good sign. =) 20010122 - (bal) OpenBSD Resync - markus@cvs.openbsd.org 2001/01/19 12:45:26 GMT 2001 by markus [servconf.c ssh.h sshd.c] only auth-chall.c needs #ifdef SKEY - markus@cvs.openbsd.org 2001/01/19 15:55:10 GMT 2001 by markus [auth-krb4.c auth-options.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c auth1.c auth2.c channels.c clientloop.c dh.c dispatch.c nchan.c packet.c pathname.h readconf.c scp.c servconf.c serverloop.c session.c ssh-add.c ssh-keygen.c ssh-keyscan.c ssh.c ssh.h ssh1.h sshconnect1.c sshd.c ttymodes.c] move ssh1 definitions to ssh1.h, pathnames to pathnames.h - markus@cvs.openbsd.org 2001/01/19 16:48:14 [sshd.8] fix typo; from stevesk@ - markus@cvs.openbsd.org 2001/01/19 16:50:58 [ssh-dss.c] clear and free digest, make consistent with other code (use dlen); from stevesk@ - markus@cvs.openbsd.org 2001/01/20 15:55:20 GMT 2001 by markus [auth-options.c auth-options.h auth-rsa.c auth2.c] pass the filename to auth_parse_options() - markus@cvs.openbsd.org 2001/01/20 17:59:40 GMT 2001 [readconf.c] fix SIGSEGV from -o ""; problem noted by jehsom@togetherweb.com - stevesk@cvs.openbsd.org 2001/01/20 18:20:29 [sshconnect2.c] dh_new_group() does not return NULL. ok markus@ - markus@cvs.openbsd.org 2001/01/20 21:33:42 [ssh-add.c] do not loop forever if askpass does not exist; from andrew@pimlott.ne.mediaone.net - djm@cvs.openbsd.org 2001/01/20 23:00:56 [servconf.c] Check for NULL return from strdelim; ok markus - djm@cvs.openbsd.org 2001/01/20 23:02:07 [readconf.c] KNF; ok markus - jakob@cvs.openbsd.org 2001/01/21 9:00:33 [ssh-keygen.1] remove -R flag; ok markus@ - markus@cvs.openbsd.org 2001/01/21 19:05:40 [atomicio.c automicio.h auth-chall.c auth-krb4.c auth-options.c auth-options.h auth-passwd.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c auth.c auth.h auth1.c auth2-chall.c auth2.c authfd.c authfile.c bufaux.c bufaux.h buffer.c canahost.c canahost.h channels.c cipher.c cli.c clientloop.c clientloop.h compat.c compress.c deattack.c dh.c dispatch.c groupaccess.c hmac.c hostfile.c kex.c key.c key.h log-client.c log-server.c log.c log.h login.c login.h match.c misc.c misc.h nchan.c packet.c pty.c radix.h readconf.c readpass.c readpass.h rsa.c scp.c servconf.c serverloop.c serverloop.h session.c sftp-server.c ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c ssh-rsa.c ssh.c ssh.h sshconnect.c sshconnect.h sshconnect1.c sshconnect2.c sshd.c tildexpand.c tildexpand.h ttysmodes.c uidswap.c xmalloc.c] split ssh.h and try to cleanup the #include mess. remove unnecessary #includes. rename util.[ch] -> misc.[ch] - (bal) renamed 'PIDDIR' to '_PATH_SSH_PIDDIR' to match OpenBSD tree - (bal) Moved #ifdef KRB4 in auth-krb4.c above the #include to resolve conflict when compiling for non-kerb install - (bal) removed the #ifdef SKEY in auth1.c to match Markus' changes on 1/19.
2001-01-22 05:34:40 +00:00
#include "log.h"
static int argno = 1; /* Number of argument currently being parsed */
int family = AF_UNSPEC; /* IPv4, IPv6 or both */
#define MAXMAXFD 256
/* The number of seconds after which to give up on a TCP connection */
int timeout = 5;
int maxfd;
#define maxcon (maxfd - 10)
#ifdef HAVE___PROGNAME
extern char *__progname;
#else
char *__progname;
#endif
fd_set read_wait;
int ncon;
/*
* Keep a connection structure for each file descriptor. The state
* associated with file descriptor n is held in fdcon[n].
*/
typedef struct Connection {
u_char c_status; /* State of connection on this file desc. */
#define CS_UNUSED 0 /* File descriptor unused */
#define CS_CON 1 /* Waiting to connect/read greeting */
#define CS_SIZE 2 /* Waiting to read initial packet size */
#define CS_KEYS 3 /* Waiting to read public key packet */
int c_fd; /* Quick lookup: c->c_fd == c - fdcon */
int c_plen; /* Packet length field for ssh packet */
int c_len; /* Total bytes which must be read. */
int c_off; /* Length of data read so far. */
char *c_namebase; /* Address to free for c_name and c_namelist */
char *c_name; /* Hostname of connection for errors */
char *c_namelist; /* Pointer to other possible addresses */
char *c_output_name; /* Hostname of connection for output */
char *c_data; /* Data read from this fd */
struct timeval c_tv; /* Time at which connection gets aborted */
TAILQ_ENTRY(Connection) c_link; /* List of connections in timeout order. */
} con;
TAILQ_HEAD(conlist, Connection) tq; /* Timeout Queue */
con *fdcon;
/*
* This is just a wrapper around fgets() to make it usable.
*/
/* Stress-test. Increase this later. */
#define LINEBUF_SIZE 16
typedef struct {
char *buf;
u_int size;
int lineno;
const char *filename;
FILE *stream;
void (*errfun) (const char *,...);
} Linebuf;
static inline Linebuf *
Linebuf_alloc(const char *filename, void (*errfun) (const char *,...))
{
Linebuf *lb;
if (!(lb = malloc(sizeof(*lb)))) {
if (errfun)
(*errfun) ("linebuf (%s): malloc failed\n", lb->filename);
return (NULL);
}
if (filename) {
lb->filename = filename;
if (!(lb->stream = fopen(filename, "r"))) {
NOTE: This update changes the RSA key generation. *NEW RSA KEYS NEED TO BE GENERATED* =) Refer to to entry "2001/01/16 19:20:06" for more details. 20010118 - (bal) Super Sized OpenBSD Resync - markus@cvs.openbsd.org 2001/01/11 22:14:20 GMT 2001 by markus [sshd.c] maxfd+1 - markus@cvs.openbsd.org 2001/01/13 17:59:18 [ssh-keygen.1] small ssh-keygen manpage cleanup; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:03:07 [scp.c ssh-keygen.c sshd.c] getopt() returns -1 not EOF; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:06:54 [ssh-keyscan.c] use SSH_DEFAULT_PORT; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:12:47 [ssh-keyscan.c] free() -> xfree(); fix memory leak; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:14:13 [ssh-add.c] typo, from stevesk@sweden.hp.com - markus@cvs.openbsd.org 2001/01/13 18:32:50 [packet.c session.c ssh.c sshconnect.c sshd.c] split out keepalive from packet_interactive (from dale@accentre.com) set IPTOS_LOWDELAY TCP_NODELAY IPTOS_THROUGHPUT for ssh2, too. - markus@cvs.openbsd.org 2001/01/13 18:36:45 [packet.c packet.h] reorder, typo - markus@cvs.openbsd.org 2001/01/13 18:38:00 [auth-options.c] fix comment - markus@cvs.openbsd.org 2001/01/13 18:43:31 [session.c] Wall - markus@cvs.openbsd.org 2001/01/13 19:14:08 [clientloop.h clientloop.c ssh.c] move callback to headerfile - markus@cvs.openbsd.org 2001/01/15 21:40:10 [ssh.c] use log() instead of stderr - markus@cvs.openbsd.org 2001/01/15 21:43:51 [dh.c] use error() not stderr! - markus@cvs.openbsd.org 2001/01/15 21:45:29 [sftp-server.c] rename must fail if newpath exists, debug off by default - markus@cvs.openbsd.org 2001/01/15 21:46:38 [sftp-server.c] readable long listing for sftp-server, ok deraadt@ - markus@cvs.openbsd.org 2001/01/16 19:20:06 [key.c ssh-rsa.c] make "ssh-rsa" key format for ssh2 confirm to the ietf-drafts; from galb@vandyke.com. note that you have to delete older ssh2-rsa keys, since they are in the wrong format, too. they must be removed from .ssh/authorized_keys2 and .ssh/known_hosts2, etc. (cd; grep -v ssh-rsa .ssh/authorized_keys2 > TMP && mv TMP .ssh/authorized_keys2) additionally, we now check that BN_num_bits(rsa->n) >= 768. - markus@cvs.openbsd.org 2001/01/16 20:54:27 [sftp-server.c] remove some statics. simpler handles; idea from nisse@lysator.liu.se - deraadt@cvs.openbsd.org 2001/01/16 23:58:08 [bufaux.c radix.c sshconnect.h sshconnect1.c] indent - (bal) Added bsd-strmode.[ch] since some non-OpenBSD platforms may be missing such feature.
2001-01-18 02:04:35 +00:00
xfree(lb);
if (errfun)
(*errfun) ("%s: %s\n", filename, strerror(errno));
return (NULL);
}
} else {
lb->filename = "(stdin)";
lb->stream = stdin;
}
if (!(lb->buf = malloc(lb->size = LINEBUF_SIZE))) {
if (errfun)
(*errfun) ("linebuf (%s): malloc failed\n", lb->filename);
NOTE: This update changes the RSA key generation. *NEW RSA KEYS NEED TO BE GENERATED* =) Refer to to entry "2001/01/16 19:20:06" for more details. 20010118 - (bal) Super Sized OpenBSD Resync - markus@cvs.openbsd.org 2001/01/11 22:14:20 GMT 2001 by markus [sshd.c] maxfd+1 - markus@cvs.openbsd.org 2001/01/13 17:59:18 [ssh-keygen.1] small ssh-keygen manpage cleanup; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:03:07 [scp.c ssh-keygen.c sshd.c] getopt() returns -1 not EOF; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:06:54 [ssh-keyscan.c] use SSH_DEFAULT_PORT; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:12:47 [ssh-keyscan.c] free() -> xfree(); fix memory leak; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:14:13 [ssh-add.c] typo, from stevesk@sweden.hp.com - markus@cvs.openbsd.org 2001/01/13 18:32:50 [packet.c session.c ssh.c sshconnect.c sshd.c] split out keepalive from packet_interactive (from dale@accentre.com) set IPTOS_LOWDELAY TCP_NODELAY IPTOS_THROUGHPUT for ssh2, too. - markus@cvs.openbsd.org 2001/01/13 18:36:45 [packet.c packet.h] reorder, typo - markus@cvs.openbsd.org 2001/01/13 18:38:00 [auth-options.c] fix comment - markus@cvs.openbsd.org 2001/01/13 18:43:31 [session.c] Wall - markus@cvs.openbsd.org 2001/01/13 19:14:08 [clientloop.h clientloop.c ssh.c] move callback to headerfile - markus@cvs.openbsd.org 2001/01/15 21:40:10 [ssh.c] use log() instead of stderr - markus@cvs.openbsd.org 2001/01/15 21:43:51 [dh.c] use error() not stderr! - markus@cvs.openbsd.org 2001/01/15 21:45:29 [sftp-server.c] rename must fail if newpath exists, debug off by default - markus@cvs.openbsd.org 2001/01/15 21:46:38 [sftp-server.c] readable long listing for sftp-server, ok deraadt@ - markus@cvs.openbsd.org 2001/01/16 19:20:06 [key.c ssh-rsa.c] make "ssh-rsa" key format for ssh2 confirm to the ietf-drafts; from galb@vandyke.com. note that you have to delete older ssh2-rsa keys, since they are in the wrong format, too. they must be removed from .ssh/authorized_keys2 and .ssh/known_hosts2, etc. (cd; grep -v ssh-rsa .ssh/authorized_keys2 > TMP && mv TMP .ssh/authorized_keys2) additionally, we now check that BN_num_bits(rsa->n) >= 768. - markus@cvs.openbsd.org 2001/01/16 20:54:27 [sftp-server.c] remove some statics. simpler handles; idea from nisse@lysator.liu.se - deraadt@cvs.openbsd.org 2001/01/16 23:58:08 [bufaux.c radix.c sshconnect.h sshconnect1.c] indent - (bal) Added bsd-strmode.[ch] since some non-OpenBSD platforms may be missing such feature.
2001-01-18 02:04:35 +00:00
xfree(lb);
return (NULL);
}
lb->errfun = errfun;
lb->lineno = 0;
return (lb);
}
static inline void
Linebuf_free(Linebuf * lb)
{
fclose(lb->stream);
NOTE: This update changes the RSA key generation. *NEW RSA KEYS NEED TO BE GENERATED* =) Refer to to entry "2001/01/16 19:20:06" for more details. 20010118 - (bal) Super Sized OpenBSD Resync - markus@cvs.openbsd.org 2001/01/11 22:14:20 GMT 2001 by markus [sshd.c] maxfd+1 - markus@cvs.openbsd.org 2001/01/13 17:59:18 [ssh-keygen.1] small ssh-keygen manpage cleanup; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:03:07 [scp.c ssh-keygen.c sshd.c] getopt() returns -1 not EOF; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:06:54 [ssh-keyscan.c] use SSH_DEFAULT_PORT; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:12:47 [ssh-keyscan.c] free() -> xfree(); fix memory leak; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:14:13 [ssh-add.c] typo, from stevesk@sweden.hp.com - markus@cvs.openbsd.org 2001/01/13 18:32:50 [packet.c session.c ssh.c sshconnect.c sshd.c] split out keepalive from packet_interactive (from dale@accentre.com) set IPTOS_LOWDELAY TCP_NODELAY IPTOS_THROUGHPUT for ssh2, too. - markus@cvs.openbsd.org 2001/01/13 18:36:45 [packet.c packet.h] reorder, typo - markus@cvs.openbsd.org 2001/01/13 18:38:00 [auth-options.c] fix comment - markus@cvs.openbsd.org 2001/01/13 18:43:31 [session.c] Wall - markus@cvs.openbsd.org 2001/01/13 19:14:08 [clientloop.h clientloop.c ssh.c] move callback to headerfile - markus@cvs.openbsd.org 2001/01/15 21:40:10 [ssh.c] use log() instead of stderr - markus@cvs.openbsd.org 2001/01/15 21:43:51 [dh.c] use error() not stderr! - markus@cvs.openbsd.org 2001/01/15 21:45:29 [sftp-server.c] rename must fail if newpath exists, debug off by default - markus@cvs.openbsd.org 2001/01/15 21:46:38 [sftp-server.c] readable long listing for sftp-server, ok deraadt@ - markus@cvs.openbsd.org 2001/01/16 19:20:06 [key.c ssh-rsa.c] make "ssh-rsa" key format for ssh2 confirm to the ietf-drafts; from galb@vandyke.com. note that you have to delete older ssh2-rsa keys, since they are in the wrong format, too. they must be removed from .ssh/authorized_keys2 and .ssh/known_hosts2, etc. (cd; grep -v ssh-rsa .ssh/authorized_keys2 > TMP && mv TMP .ssh/authorized_keys2) additionally, we now check that BN_num_bits(rsa->n) >= 768. - markus@cvs.openbsd.org 2001/01/16 20:54:27 [sftp-server.c] remove some statics. simpler handles; idea from nisse@lysator.liu.se - deraadt@cvs.openbsd.org 2001/01/16 23:58:08 [bufaux.c radix.c sshconnect.h sshconnect1.c] indent - (bal) Added bsd-strmode.[ch] since some non-OpenBSD platforms may be missing such feature.
2001-01-18 02:04:35 +00:00
xfree(lb->buf);
xfree(lb);
}
static inline void
Linebuf_restart(Linebuf * lb)
{
clearerr(lb->stream);
rewind(lb->stream);
lb->lineno = 0;
}
static inline int
Linebuf_lineno(Linebuf * lb)
{
return (lb->lineno);
}
static inline char *
getline(Linebuf * lb)
{
int n = 0;
lb->lineno++;
for (;;) {
/* Read a line */
if (!fgets(&lb->buf[n], lb->size - n, lb->stream)) {
if (ferror(lb->stream) && lb->errfun)
(*lb->errfun) ("%s: %s\n", lb->filename, strerror(errno));
return (NULL);
}
n = strlen(lb->buf);
/* Return it or an error if it fits */
if (n > 0 && lb->buf[n - 1] == '\n') {
lb->buf[n - 1] = '\0';
return (lb->buf);
}
if (n != lb->size - 1) {
if (lb->errfun)
(*lb->errfun) ("%s: skipping incomplete last line\n", lb->filename);
return (NULL);
}
/* Double the buffer if we need more space */
if (!(lb->buf = realloc(lb->buf, (lb->size *= 2)))) {
if (lb->errfun)
(*lb->errfun) ("linebuf (%s): realloc failed\n", lb->filename);
return (NULL);
}
}
}
static int
fdlim_get(int hard)
{
#if defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE)
struct rlimit rlfd;
if (getrlimit(RLIMIT_NOFILE, &rlfd) < 0)
return (-1);
if ((hard ? rlfd.rlim_max : rlfd.rlim_cur) == RLIM_INFINITY)
return 10000;
else
return hard ? rlfd.rlim_max : rlfd.rlim_cur;
#elif defined (HAVE_SYSCONF)
return sysconf (_SC_OPEN_MAX);
#else
return 10000;
#endif
}
static int
fdlim_set(int lim)
{
#if defined(HAVE_SETRLIMIT) && defined(RLIMIT_NOFILE)
struct rlimit rlfd;
#endif
if (lim <= 0)
return (-1);
#if defined(HAVE_SETRLIMIT) && defined(RLIMIT_NOFILE)
if (getrlimit(RLIMIT_NOFILE, &rlfd) < 0)
return (-1);
rlfd.rlim_cur = lim;
if (setrlimit(RLIMIT_NOFILE, &rlfd) < 0)
return (-1);
#elif defined (HAVE_SETDTABLESIZE)
setdtablesize (lim);
#endif
return (0);
}
/*
* This is an strsep function that returns a null field for adjacent
* separators. This is the same as the 4.4BSD strsep, but different from the
* one in the GNU libc.
*/
inline char *
xstrsep(char **str, const char *delim)
{
char *s, *e;
if (!**str)
return (NULL);
s = *str;
e = s + strcspn(s, delim);
if (*e != '\0')
*e++ = '\0';
*str = e;
return (s);
}
/*
* Get the next non-null token (like GNU strsep). Strsep() will return a
* null token for two adjacent separators, so we may have to loop.
*/
char *
strnnsep(char **stringp, char *delim)
{
char *tok;
do {
tok = xstrsep(stringp, delim);
} while (tok && *tok == '\0');
return (tok);
}
void
keyprint(char *host, char *output_name, char *kd, int len)
{
static Key *rsa;
static Buffer msg;
if (rsa == NULL) {
buffer_init(&msg);
rsa = key_new(KEY_RSA1);
}
buffer_append(&msg, kd, len);
buffer_consume(&msg, 8 - (len & 7)); /* padding */
if (buffer_get_char(&msg) != (int) SSH_SMSG_PUBLIC_KEY) {
error("%s: invalid packet type", host);
buffer_clear(&msg);
return;
}
buffer_consume(&msg, 8); /* cookie */
/* server key */
(void) buffer_get_int(&msg);
buffer_get_bignum(&msg, rsa->rsa->e);
buffer_get_bignum(&msg, rsa->rsa->n);
/* host key */
(void) buffer_get_int(&msg);
buffer_get_bignum(&msg, rsa->rsa->e);
buffer_get_bignum(&msg, rsa->rsa->n);
buffer_clear(&msg);
fprintf(stdout, "%s ", output_name ? output_name : host);
key_write(rsa, stdout);
fputs("\n", stdout);
}
int
tcpconnect(char *host)
{
struct addrinfo hints, *ai, *aitop;
char strport[NI_MAXSERV];
int gaierr, s = -1;
NOTE: This update changes the RSA key generation. *NEW RSA KEYS NEED TO BE GENERATED* =) Refer to to entry "2001/01/16 19:20:06" for more details. 20010118 - (bal) Super Sized OpenBSD Resync - markus@cvs.openbsd.org 2001/01/11 22:14:20 GMT 2001 by markus [sshd.c] maxfd+1 - markus@cvs.openbsd.org 2001/01/13 17:59:18 [ssh-keygen.1] small ssh-keygen manpage cleanup; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:03:07 [scp.c ssh-keygen.c sshd.c] getopt() returns -1 not EOF; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:06:54 [ssh-keyscan.c] use SSH_DEFAULT_PORT; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:12:47 [ssh-keyscan.c] free() -> xfree(); fix memory leak; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:14:13 [ssh-add.c] typo, from stevesk@sweden.hp.com - markus@cvs.openbsd.org 2001/01/13 18:32:50 [packet.c session.c ssh.c sshconnect.c sshd.c] split out keepalive from packet_interactive (from dale@accentre.com) set IPTOS_LOWDELAY TCP_NODELAY IPTOS_THROUGHPUT for ssh2, too. - markus@cvs.openbsd.org 2001/01/13 18:36:45 [packet.c packet.h] reorder, typo - markus@cvs.openbsd.org 2001/01/13 18:38:00 [auth-options.c] fix comment - markus@cvs.openbsd.org 2001/01/13 18:43:31 [session.c] Wall - markus@cvs.openbsd.org 2001/01/13 19:14:08 [clientloop.h clientloop.c ssh.c] move callback to headerfile - markus@cvs.openbsd.org 2001/01/15 21:40:10 [ssh.c] use log() instead of stderr - markus@cvs.openbsd.org 2001/01/15 21:43:51 [dh.c] use error() not stderr! - markus@cvs.openbsd.org 2001/01/15 21:45:29 [sftp-server.c] rename must fail if newpath exists, debug off by default - markus@cvs.openbsd.org 2001/01/15 21:46:38 [sftp-server.c] readable long listing for sftp-server, ok deraadt@ - markus@cvs.openbsd.org 2001/01/16 19:20:06 [key.c ssh-rsa.c] make "ssh-rsa" key format for ssh2 confirm to the ietf-drafts; from galb@vandyke.com. note that you have to delete older ssh2-rsa keys, since they are in the wrong format, too. they must be removed from .ssh/authorized_keys2 and .ssh/known_hosts2, etc. (cd; grep -v ssh-rsa .ssh/authorized_keys2 > TMP && mv TMP .ssh/authorized_keys2) additionally, we now check that BN_num_bits(rsa->n) >= 768. - markus@cvs.openbsd.org 2001/01/16 20:54:27 [sftp-server.c] remove some statics. simpler handles; idea from nisse@lysator.liu.se - deraadt@cvs.openbsd.org 2001/01/16 23:58:08 [bufaux.c radix.c sshconnect.h sshconnect1.c] indent - (bal) Added bsd-strmode.[ch] since some non-OpenBSD platforms may be missing such feature.
2001-01-18 02:04:35 +00:00
snprintf(strport, sizeof strport, "%d", SSH_DEFAULT_PORT);
memset(&hints, 0, sizeof(hints));
hints.ai_family = family;
hints.ai_socktype = SOCK_STREAM;
if ((gaierr = getaddrinfo(host, strport, &hints, &aitop)) != 0)
fatal("getaddrinfo %s: %s", host, gai_strerror(gaierr));
for (ai = aitop; ai; ai = ai->ai_next) {
s = socket(ai->ai_family, SOCK_STREAM, 0);
if (s < 0) {
error("socket: %s", strerror(errno));
continue;
}
if (fcntl(s, F_SETFL, O_NONBLOCK) < 0)
fatal("F_SETFL: %s", strerror(errno));
if (connect(s, ai->ai_addr, ai->ai_addrlen) < 0 &&
errno != EINPROGRESS)
error("connect (`%s'): %s", host, strerror(errno));
else
break;
close(s);
s = -1;
}
freeaddrinfo(aitop);
return s;
}
int
conalloc(char *iname, char *oname)
{
int s;
char *namebase, *name, *namelist;
namebase = namelist = xstrdup(iname);
do {
name = xstrsep(&namelist, ",");
if (!name) {
NOTE: This update changes the RSA key generation. *NEW RSA KEYS NEED TO BE GENERATED* =) Refer to to entry "2001/01/16 19:20:06" for more details. 20010118 - (bal) Super Sized OpenBSD Resync - markus@cvs.openbsd.org 2001/01/11 22:14:20 GMT 2001 by markus [sshd.c] maxfd+1 - markus@cvs.openbsd.org 2001/01/13 17:59:18 [ssh-keygen.1] small ssh-keygen manpage cleanup; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:03:07 [scp.c ssh-keygen.c sshd.c] getopt() returns -1 not EOF; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:06:54 [ssh-keyscan.c] use SSH_DEFAULT_PORT; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:12:47 [ssh-keyscan.c] free() -> xfree(); fix memory leak; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:14:13 [ssh-add.c] typo, from stevesk@sweden.hp.com - markus@cvs.openbsd.org 2001/01/13 18:32:50 [packet.c session.c ssh.c sshconnect.c sshd.c] split out keepalive from packet_interactive (from dale@accentre.com) set IPTOS_LOWDELAY TCP_NODELAY IPTOS_THROUGHPUT for ssh2, too. - markus@cvs.openbsd.org 2001/01/13 18:36:45 [packet.c packet.h] reorder, typo - markus@cvs.openbsd.org 2001/01/13 18:38:00 [auth-options.c] fix comment - markus@cvs.openbsd.org 2001/01/13 18:43:31 [session.c] Wall - markus@cvs.openbsd.org 2001/01/13 19:14:08 [clientloop.h clientloop.c ssh.c] move callback to headerfile - markus@cvs.openbsd.org 2001/01/15 21:40:10 [ssh.c] use log() instead of stderr - markus@cvs.openbsd.org 2001/01/15 21:43:51 [dh.c] use error() not stderr! - markus@cvs.openbsd.org 2001/01/15 21:45:29 [sftp-server.c] rename must fail if newpath exists, debug off by default - markus@cvs.openbsd.org 2001/01/15 21:46:38 [sftp-server.c] readable long listing for sftp-server, ok deraadt@ - markus@cvs.openbsd.org 2001/01/16 19:20:06 [key.c ssh-rsa.c] make "ssh-rsa" key format for ssh2 confirm to the ietf-drafts; from galb@vandyke.com. note that you have to delete older ssh2-rsa keys, since they are in the wrong format, too. they must be removed from .ssh/authorized_keys2 and .ssh/known_hosts2, etc. (cd; grep -v ssh-rsa .ssh/authorized_keys2 > TMP && mv TMP .ssh/authorized_keys2) additionally, we now check that BN_num_bits(rsa->n) >= 768. - markus@cvs.openbsd.org 2001/01/16 20:54:27 [sftp-server.c] remove some statics. simpler handles; idea from nisse@lysator.liu.se - deraadt@cvs.openbsd.org 2001/01/16 23:58:08 [bufaux.c radix.c sshconnect.h sshconnect1.c] indent - (bal) Added bsd-strmode.[ch] since some non-OpenBSD platforms may be missing such feature.
2001-01-18 02:04:35 +00:00
xfree(namebase);
return (-1);
}
} while ((s = tcpconnect(name)) < 0);
if (s >= maxfd)
fatal("conalloc: fdno %d too high", s);
if (fdcon[s].c_status)
fatal("conalloc: attempt to reuse fdno %d", s);
fdcon[s].c_fd = s;
fdcon[s].c_status = CS_CON;
fdcon[s].c_namebase = namebase;
fdcon[s].c_name = name;
fdcon[s].c_namelist = namelist;
fdcon[s].c_output_name = xstrdup(oname);
fdcon[s].c_data = (char *) &fdcon[s].c_plen;
fdcon[s].c_len = 4;
fdcon[s].c_off = 0;
gettimeofday(&fdcon[s].c_tv, NULL);
fdcon[s].c_tv.tv_sec += timeout;
TAILQ_INSERT_TAIL(&tq, &fdcon[s], c_link);
FD_SET(s, &read_wait);
ncon++;
return (s);
}
void
confree(int s)
{
close(s);
if (s >= maxfd || fdcon[s].c_status == CS_UNUSED)
fatal("confree: attempt to free bad fdno %d", s);
NOTE: This update changes the RSA key generation. *NEW RSA KEYS NEED TO BE GENERATED* =) Refer to to entry "2001/01/16 19:20:06" for more details. 20010118 - (bal) Super Sized OpenBSD Resync - markus@cvs.openbsd.org 2001/01/11 22:14:20 GMT 2001 by markus [sshd.c] maxfd+1 - markus@cvs.openbsd.org 2001/01/13 17:59:18 [ssh-keygen.1] small ssh-keygen manpage cleanup; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:03:07 [scp.c ssh-keygen.c sshd.c] getopt() returns -1 not EOF; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:06:54 [ssh-keyscan.c] use SSH_DEFAULT_PORT; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:12:47 [ssh-keyscan.c] free() -> xfree(); fix memory leak; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:14:13 [ssh-add.c] typo, from stevesk@sweden.hp.com - markus@cvs.openbsd.org 2001/01/13 18:32:50 [packet.c session.c ssh.c sshconnect.c sshd.c] split out keepalive from packet_interactive (from dale@accentre.com) set IPTOS_LOWDELAY TCP_NODELAY IPTOS_THROUGHPUT for ssh2, too. - markus@cvs.openbsd.org 2001/01/13 18:36:45 [packet.c packet.h] reorder, typo - markus@cvs.openbsd.org 2001/01/13 18:38:00 [auth-options.c] fix comment - markus@cvs.openbsd.org 2001/01/13 18:43:31 [session.c] Wall - markus@cvs.openbsd.org 2001/01/13 19:14:08 [clientloop.h clientloop.c ssh.c] move callback to headerfile - markus@cvs.openbsd.org 2001/01/15 21:40:10 [ssh.c] use log() instead of stderr - markus@cvs.openbsd.org 2001/01/15 21:43:51 [dh.c] use error() not stderr! - markus@cvs.openbsd.org 2001/01/15 21:45:29 [sftp-server.c] rename must fail if newpath exists, debug off by default - markus@cvs.openbsd.org 2001/01/15 21:46:38 [sftp-server.c] readable long listing for sftp-server, ok deraadt@ - markus@cvs.openbsd.org 2001/01/16 19:20:06 [key.c ssh-rsa.c] make "ssh-rsa" key format for ssh2 confirm to the ietf-drafts; from galb@vandyke.com. note that you have to delete older ssh2-rsa keys, since they are in the wrong format, too. they must be removed from .ssh/authorized_keys2 and .ssh/known_hosts2, etc. (cd; grep -v ssh-rsa .ssh/authorized_keys2 > TMP && mv TMP .ssh/authorized_keys2) additionally, we now check that BN_num_bits(rsa->n) >= 768. - markus@cvs.openbsd.org 2001/01/16 20:54:27 [sftp-server.c] remove some statics. simpler handles; idea from nisse@lysator.liu.se - deraadt@cvs.openbsd.org 2001/01/16 23:58:08 [bufaux.c radix.c sshconnect.h sshconnect1.c] indent - (bal) Added bsd-strmode.[ch] since some non-OpenBSD platforms may be missing such feature.
2001-01-18 02:04:35 +00:00
xfree(fdcon[s].c_namebase);
xfree(fdcon[s].c_output_name);
if (fdcon[s].c_status == CS_KEYS)
NOTE: This update changes the RSA key generation. *NEW RSA KEYS NEED TO BE GENERATED* =) Refer to to entry "2001/01/16 19:20:06" for more details. 20010118 - (bal) Super Sized OpenBSD Resync - markus@cvs.openbsd.org 2001/01/11 22:14:20 GMT 2001 by markus [sshd.c] maxfd+1 - markus@cvs.openbsd.org 2001/01/13 17:59:18 [ssh-keygen.1] small ssh-keygen manpage cleanup; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:03:07 [scp.c ssh-keygen.c sshd.c] getopt() returns -1 not EOF; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:06:54 [ssh-keyscan.c] use SSH_DEFAULT_PORT; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:12:47 [ssh-keyscan.c] free() -> xfree(); fix memory leak; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:14:13 [ssh-add.c] typo, from stevesk@sweden.hp.com - markus@cvs.openbsd.org 2001/01/13 18:32:50 [packet.c session.c ssh.c sshconnect.c sshd.c] split out keepalive from packet_interactive (from dale@accentre.com) set IPTOS_LOWDELAY TCP_NODELAY IPTOS_THROUGHPUT for ssh2, too. - markus@cvs.openbsd.org 2001/01/13 18:36:45 [packet.c packet.h] reorder, typo - markus@cvs.openbsd.org 2001/01/13 18:38:00 [auth-options.c] fix comment - markus@cvs.openbsd.org 2001/01/13 18:43:31 [session.c] Wall - markus@cvs.openbsd.org 2001/01/13 19:14:08 [clientloop.h clientloop.c ssh.c] move callback to headerfile - markus@cvs.openbsd.org 2001/01/15 21:40:10 [ssh.c] use log() instead of stderr - markus@cvs.openbsd.org 2001/01/15 21:43:51 [dh.c] use error() not stderr! - markus@cvs.openbsd.org 2001/01/15 21:45:29 [sftp-server.c] rename must fail if newpath exists, debug off by default - markus@cvs.openbsd.org 2001/01/15 21:46:38 [sftp-server.c] readable long listing for sftp-server, ok deraadt@ - markus@cvs.openbsd.org 2001/01/16 19:20:06 [key.c ssh-rsa.c] make "ssh-rsa" key format for ssh2 confirm to the ietf-drafts; from galb@vandyke.com. note that you have to delete older ssh2-rsa keys, since they are in the wrong format, too. they must be removed from .ssh/authorized_keys2 and .ssh/known_hosts2, etc. (cd; grep -v ssh-rsa .ssh/authorized_keys2 > TMP && mv TMP .ssh/authorized_keys2) additionally, we now check that BN_num_bits(rsa->n) >= 768. - markus@cvs.openbsd.org 2001/01/16 20:54:27 [sftp-server.c] remove some statics. simpler handles; idea from nisse@lysator.liu.se - deraadt@cvs.openbsd.org 2001/01/16 23:58:08 [bufaux.c radix.c sshconnect.h sshconnect1.c] indent - (bal) Added bsd-strmode.[ch] since some non-OpenBSD platforms may be missing such feature.
2001-01-18 02:04:35 +00:00
xfree(fdcon[s].c_data);
fdcon[s].c_status = CS_UNUSED;
TAILQ_REMOVE(&tq, &fdcon[s], c_link);
FD_CLR(s, &read_wait);
ncon--;
}
void
contouch(int s)
{
TAILQ_REMOVE(&tq, &fdcon[s], c_link);
gettimeofday(&fdcon[s].c_tv, NULL);
fdcon[s].c_tv.tv_sec += timeout;
TAILQ_INSERT_TAIL(&tq, &fdcon[s], c_link);
}
int
conrecycle(int s)
{
int ret;
con *c = &fdcon[s];
char *iname, *oname;
iname = xstrdup(c->c_namelist);
NOTE: This update changes the RSA key generation. *NEW RSA KEYS NEED TO BE GENERATED* =) Refer to to entry "2001/01/16 19:20:06" for more details. 20010118 - (bal) Super Sized OpenBSD Resync - markus@cvs.openbsd.org 2001/01/11 22:14:20 GMT 2001 by markus [sshd.c] maxfd+1 - markus@cvs.openbsd.org 2001/01/13 17:59:18 [ssh-keygen.1] small ssh-keygen manpage cleanup; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:03:07 [scp.c ssh-keygen.c sshd.c] getopt() returns -1 not EOF; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:06:54 [ssh-keyscan.c] use SSH_DEFAULT_PORT; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:12:47 [ssh-keyscan.c] free() -> xfree(); fix memory leak; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:14:13 [ssh-add.c] typo, from stevesk@sweden.hp.com - markus@cvs.openbsd.org 2001/01/13 18:32:50 [packet.c session.c ssh.c sshconnect.c sshd.c] split out keepalive from packet_interactive (from dale@accentre.com) set IPTOS_LOWDELAY TCP_NODELAY IPTOS_THROUGHPUT for ssh2, too. - markus@cvs.openbsd.org 2001/01/13 18:36:45 [packet.c packet.h] reorder, typo - markus@cvs.openbsd.org 2001/01/13 18:38:00 [auth-options.c] fix comment - markus@cvs.openbsd.org 2001/01/13 18:43:31 [session.c] Wall - markus@cvs.openbsd.org 2001/01/13 19:14:08 [clientloop.h clientloop.c ssh.c] move callback to headerfile - markus@cvs.openbsd.org 2001/01/15 21:40:10 [ssh.c] use log() instead of stderr - markus@cvs.openbsd.org 2001/01/15 21:43:51 [dh.c] use error() not stderr! - markus@cvs.openbsd.org 2001/01/15 21:45:29 [sftp-server.c] rename must fail if newpath exists, debug off by default - markus@cvs.openbsd.org 2001/01/15 21:46:38 [sftp-server.c] readable long listing for sftp-server, ok deraadt@ - markus@cvs.openbsd.org 2001/01/16 19:20:06 [key.c ssh-rsa.c] make "ssh-rsa" key format for ssh2 confirm to the ietf-drafts; from galb@vandyke.com. note that you have to delete older ssh2-rsa keys, since they are in the wrong format, too. they must be removed from .ssh/authorized_keys2 and .ssh/known_hosts2, etc. (cd; grep -v ssh-rsa .ssh/authorized_keys2 > TMP && mv TMP .ssh/authorized_keys2) additionally, we now check that BN_num_bits(rsa->n) >= 768. - markus@cvs.openbsd.org 2001/01/16 20:54:27 [sftp-server.c] remove some statics. simpler handles; idea from nisse@lysator.liu.se - deraadt@cvs.openbsd.org 2001/01/16 23:58:08 [bufaux.c radix.c sshconnect.h sshconnect1.c] indent - (bal) Added bsd-strmode.[ch] since some non-OpenBSD platforms may be missing such feature.
2001-01-18 02:04:35 +00:00
oname = xstrdup(c->c_output_name);
confree(s);
ret = conalloc(iname, oname);
NOTE: This update changes the RSA key generation. *NEW RSA KEYS NEED TO BE GENERATED* =) Refer to to entry "2001/01/16 19:20:06" for more details. 20010118 - (bal) Super Sized OpenBSD Resync - markus@cvs.openbsd.org 2001/01/11 22:14:20 GMT 2001 by markus [sshd.c] maxfd+1 - markus@cvs.openbsd.org 2001/01/13 17:59:18 [ssh-keygen.1] small ssh-keygen manpage cleanup; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:03:07 [scp.c ssh-keygen.c sshd.c] getopt() returns -1 not EOF; stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:06:54 [ssh-keyscan.c] use SSH_DEFAULT_PORT; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:12:47 [ssh-keyscan.c] free() -> xfree(); fix memory leak; from stevesk@pobox.com - markus@cvs.openbsd.org 2001/01/13 18:14:13 [ssh-add.c] typo, from stevesk@sweden.hp.com - markus@cvs.openbsd.org 2001/01/13 18:32:50 [packet.c session.c ssh.c sshconnect.c sshd.c] split out keepalive from packet_interactive (from dale@accentre.com) set IPTOS_LOWDELAY TCP_NODELAY IPTOS_THROUGHPUT for ssh2, too. - markus@cvs.openbsd.org 2001/01/13 18:36:45 [packet.c packet.h] reorder, typo - markus@cvs.openbsd.org 2001/01/13 18:38:00 [auth-options.c] fix comment - markus@cvs.openbsd.org 2001/01/13 18:43:31 [session.c] Wall - markus@cvs.openbsd.org 2001/01/13 19:14:08 [clientloop.h clientloop.c ssh.c] move callback to headerfile - markus@cvs.openbsd.org 2001/01/15 21:40:10 [ssh.c] use log() instead of stderr - markus@cvs.openbsd.org 2001/01/15 21:43:51 [dh.c] use error() not stderr! - markus@cvs.openbsd.org 2001/01/15 21:45:29 [sftp-server.c] rename must fail if newpath exists, debug off by default - markus@cvs.openbsd.org 2001/01/15 21:46:38 [sftp-server.c] readable long listing for sftp-server, ok deraadt@ - markus@cvs.openbsd.org 2001/01/16 19:20:06 [key.c ssh-rsa.c] make "ssh-rsa" key format for ssh2 confirm to the ietf-drafts; from galb@vandyke.com. note that you have to delete older ssh2-rsa keys, since they are in the wrong format, too. they must be removed from .ssh/authorized_keys2 and .ssh/known_hosts2, etc. (cd; grep -v ssh-rsa .ssh/authorized_keys2 > TMP && mv TMP .ssh/authorized_keys2) additionally, we now check that BN_num_bits(rsa->n) >= 768. - markus@cvs.openbsd.org 2001/01/16 20:54:27 [sftp-server.c] remove some statics. simpler handles; idea from nisse@lysator.liu.se - deraadt@cvs.openbsd.org 2001/01/16 23:58:08 [bufaux.c radix.c sshconnect.h sshconnect1.c] indent - (bal) Added bsd-strmode.[ch] since some non-OpenBSD platforms may be missing such feature.
2001-01-18 02:04:35 +00:00
xfree(iname);
xfree(oname);
return (ret);
}
void
congreet(int s)
{
char buf[80];
int n;
con *c = &fdcon[s];
n = read(s, buf, sizeof(buf));
if (n < 0) {
if (errno != ECONNREFUSED)
error("read (%s): %s", c->c_name, strerror(errno));
conrecycle(s);
return;
}
if (buf[n - 1] != '\n') {
error("%s: bad greeting", c->c_name);
confree(s);
return;
}
buf[n - 1] = '\0';
fprintf(stderr, "# %s %s\n", c->c_name, buf);
n = snprintf(buf, sizeof buf, "SSH-1.5-OpenSSH-keyscan\r\n");
if (write(s, buf, n) != n) {
error("write (%s): %s", c->c_name, strerror(errno));
confree(s);
return;
}
c->c_status = CS_SIZE;
contouch(s);
}
void
conread(int s)
{
int n;
con *c = &fdcon[s];
if (c->c_status == CS_CON) {
congreet(s);
return;
}
n = read(s, c->c_data + c->c_off, c->c_len - c->c_off);
if (n < 0) {
error("read (%s): %s", c->c_name, strerror(errno));
confree(s);
return;
}
c->c_off += n;
if (c->c_off == c->c_len)
switch (c->c_status) {
case CS_SIZE:
c->c_plen = htonl(c->c_plen);
c->c_len = c->c_plen + 8 - (c->c_plen & 7);
c->c_off = 0;
c->c_data = xmalloc(c->c_len);
c->c_status = CS_KEYS;
break;
case CS_KEYS:
keyprint(c->c_name, c->c_output_name, c->c_data, c->c_plen);
confree(s);
return;
break;
default:
fatal("conread: invalid status %d", c->c_status);
break;
}
contouch(s);
}
void
conloop(void)
{
fd_set r, e;
struct timeval seltime, now;
int i;
con *c;
gettimeofday(&now, NULL);
c = tq.tqh_first;
if (c &&
(c->c_tv.tv_sec > now.tv_sec ||
(c->c_tv.tv_sec == now.tv_sec && c->c_tv.tv_usec > now.tv_usec))) {
seltime = c->c_tv;
seltime.tv_sec -= now.tv_sec;
seltime.tv_usec -= now.tv_usec;
if ((int) seltime.tv_usec < 0) {
seltime.tv_usec += 1000000;
seltime.tv_sec--;
}
} else
seltime.tv_sec = seltime.tv_usec = 0;
r = e = read_wait;
select(maxfd, &r, NULL, &e, &seltime);
for (i = 0; i < maxfd; i++)
if (FD_ISSET(i, &e)) {
error("%s: exception!", fdcon[i].c_name);
confree(i);
} else if (FD_ISSET(i, &r))
conread(i);
c = tq.tqh_first;
while (c &&
(c->c_tv.tv_sec < now.tv_sec ||
(c->c_tv.tv_sec == now.tv_sec && c->c_tv.tv_usec < now.tv_usec))) {
int s = c->c_fd;
c = c->c_link.tqe_next;
conrecycle(s);
}
}
char *
nexthost(int argc, char **argv)
{
static Linebuf *lb;
for (;;) {
if (!lb) {
if (argno >= argc)
return (NULL);
if (argv[argno][0] != '-')
return (argv[argno++]);
if (!strcmp(argv[argno], "--")) {
if (++argno >= argc)
return (NULL);
return (argv[argno++]);
} else if (!strncmp(argv[argno], "-f", 2)) {
char *fname;
if (argv[argno][2])
fname = &argv[argno++][2];
else if (++argno >= argc) {
error("missing filename for `-f'");
return (NULL);
} else
fname = argv[argno++];
if (!strcmp(fname, "-"))
fname = NULL;
lb = Linebuf_alloc(fname, error);
} else
error("ignoring invalid/misplaced option `%s'", argv[argno++]);
} else {
char *line;
line = getline(lb);
if (line)
return (line);
Linebuf_free(lb);
lb = NULL;
}
}
}
static void
usage(void)
{
fatal("usage: %s [-t timeout] { [--] host | -f file } ...", __progname);
return;
}
int
main(int argc, char **argv)
{
char *host = NULL;
__progname = get_progname(argv[0]);
TAILQ_INIT(&tq);
if (argc <= argno)
usage();
if (argv[1][0] == '-' && argv[1][1] == 't') {
argno++;
if (argv[1][2])
timeout = atoi(&argv[1][2]);
else {
if (argno >= argc)
usage();
timeout = atoi(argv[argno++]);
}
if (timeout <= 0)
usage();
}
if (argc <= argno)
usage();
maxfd = fdlim_get(1);
if (maxfd < 0)
fatal("%s: fdlim_get: bad value", __progname);
if (maxfd > MAXMAXFD)
maxfd = MAXMAXFD;
if (maxcon <= 0)
fatal("%s: not enough file descriptors", __progname);
if (maxfd > fdlim_get(0))
fdlim_set(maxfd);
fdcon = xmalloc(maxfd * sizeof(con));
do {
while (ncon < maxcon) {
char *name;
host = nexthost(argc, argv);
if (host == NULL)
break;
name = strnnsep(&host, " \t\n");
conalloc(name, *host ? host : name);
}
conloop();
} while (host);
while (ncon > 0)
conloop();
return (0);
}