*/
#include "includes.h"
-RCSID("$OpenBSD: ssh-keyscan.c,v 1.30 2001/10/08 19:05:05 markus Exp $");
+RCSID("$OpenBSD: ssh-keyscan.c,v 1.35 2002/03/04 18:30:23 stevesk Exp $");
#if defined(HAVE_SYS_QUEUE_H) && !defined(HAVE_BOGUS_SYS_QUEUE_H)
#include <sys/queue.h>
congreet(int s)
{
char buf[256], *cp;
+ char remote_version[sizeof buf];
size_t bufsiz;
- int n = 0;
+ int remote_major, remote_minor, n = 0;
con *c = &fdcon[s];
bufsiz = sizeof(buf);
conrecycle(s);
return;
}
+ if (n == 0) {
+ error("%s: Connection closed by remote host", c->c_name);
+ conrecycle(s);
+ return;
+ }
if (*cp != '\n' && *cp != '\r') {
error("%s: bad greeting", c->c_name);
confree(s);
return;
}
*cp = '\0';
+ if (sscanf(buf, "SSH-%d.%d-%[^\n]\n",
+ &remote_major, &remote_minor, remote_version) == 3)
+ compat_datafellows(remote_version);
+ else
+ datafellows = 0;
if (c->c_keytype != KT_RSA1) {
- int remote_major, remote_minor;
- char remote_version[sizeof buf];
-
- if (sscanf(buf, "SSH-%d.%d-%[^\n]\n",
- &remote_major, &remote_minor, remote_version) == 3)
- compat_datafellows(remote_version);
- else
- datafellows = 0;
if (!ssh2_capable(remote_major, remote_minor)) {
debug("%s doesn't support ssh2", c->c_name);
confree(s);
return;
}
+ } else if (remote_major != 1) {
+ debug("%s doesn't support ssh1", c->c_name);
+ confree(s);
+ return;
}
fprintf(stderr, "# %s %s\n", c->c_name, chop(buf));
n = snprintf(buf, sizeof buf, "SSH-%d.%d-OpenSSH-keyscan\r\n",
char *name = strnnsep(&host, " \t\n");
int j;
+ if (name == NULL)
+ return;
for (j = KT_RSA1; j <= KT_RSA; j *= 2) {
if (get_keytypes & j) {
while (ncon >= MAXCON)
}
}
-static void
-fatal_callback(void *arg)
+void
+fatal(const char *fmt,...)
{
+ va_list args;
+ va_start(args, fmt);
+ do_log(SYSLOG_LEVEL_FATAL, fmt, args);
+ va_end(args);
if (nonfatal_fatal)
longjmp(kexjmp, -1);
+ else
+ fatal_cleanup();
}
static void
fprintf(stderr, " -p port Connect to the specified port.\n");
fprintf(stderr, " -t keytype Specify the host key type.\n");
fprintf(stderr, " -T timeout Set connection timeout.\n");
- fprintf(stderr, " -v Verbose; display verbose debugging messages.\n");
- fprintf(stderr, " -4 Use IPv4 only.\n");
- fprintf(stderr, " -6 Use IPv6 only.\n");
+ fprintf(stderr, " -v Verbose; display verbose debugging messages.\n");
+ fprintf(stderr, " -4 Use IPv4 only.\n");
+ fprintf(stderr, " -6 Use IPv6 only.\n");
exit(1);
}
get_keytypes |= KT_RSA;
break;
case KEY_UNSPEC:
- fatal("unknown key type %s\n", tname);
+ fatal("unknown key type %s", tname);
}
tname = strtok(NULL, ",");
}
usage();
log_init("ssh-keyscan", log_level, SYSLOG_FACILITY_USER, 1);
- fatal_add_cleanup(fatal_callback, NULL);
maxfd = fdlim_get(1);
if (maxfd < 0)