d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Write numerical address instead of hostname for hostnames > UT_HOSTSIZE

Browse Source 
to keep valid information in utmp and lastlog
This commit is contained in:
ache 1996-06-17 12:27:55 +00:00
parent 8e675d657c
commit 6f3eff2d14
1 changed files with 21 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
usr.bin/login/login.c
View File

@ -52,10 +52,13 @@ static char sccsid[] = "@(#)login.c 8.4 (Berkeley) 4/2/94";
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/file.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <err.h>
#include <errno.h>
#include <grp.h>
#include <netdb.h>
#include <pwd.h>
#include <setjmp.h>
#include <signal.h>
@ -109,6 +112,7 @@ int authok;
struct passwd *pwd;
int failures;
char term[64], *envinit[1], *hostname, *username, *tty;
char full_hostname[MAXHOSTNAMELEN];
int
main(argc, argv)
@ -126,7 +130,6 @@ main(argc, argv)
char *domain, *p, *ep, *salt, *ttyn;
char tbuf[MAXPATHLEN + 2], tname[sizeof(_PATH_TTY) + 10];
char localhost[MAXHOSTNAMELEN];
char full_hostname[MAXHOSTNAMELEN];
#ifdef SKEY
int permit_passwd = 0;
#endif
@ -167,6 +170,17 @@ main(argc, argv)
if (domain && (p = strchr(optarg, '.')) &&
strcasecmp(p, domain) == 0)
*p = 0;
if (strlen(optarg) > UT_HOSTSIZE) {
struct hostent *hp = gethostbyname(optarg);
if (hp != NULL) {
struct in_addr in;
memmove(&in, hp->h_addr, sizeof(in));
optarg = strdup(inet_ntoa(in));
} else
optarg = "invalid hostname";
}
hostname = optarg;
break;
case 'p':
@ -314,7 +328,7 @@ main(argc, argv)
if (hostname)
syslog(LOG_NOTICE,
"LOGIN %s REFUSED FROM %s ON TTY %s",
pwd->pw_name, hostname, tty);
pwd->pw_name, full_hostname, tty);
else
syslog(LOG_NOTICE,
"LOGIN %s REFUSED ON TTY %s",
@ -427,7 +441,7 @@ main(argc, argv)
if (rootlogin && fflag == 0)
if (hostname)
syslog(LOG_NOTICE, "ROOT LOGIN (%s) ON %s FROM %s",
username, tty, hostname);
username, tty, full_hostname);
else
syslog(LOG_NOTICE, "ROOT LOGIN (%s) ON %s", username, tty);
@ -442,7 +456,7 @@ main(argc, argv)
* of wtmp or lastlogin files.
*/
if (hostname) {
syslog(LOG_INFO, "login from %s as %s", hostname, pwd->pw_name);
syslog(LOG_INFO, "login from %s as %s", full_hostname, pwd->pw_name);
} else {
syslog(LOG_INFO, "login on %s as %s", tty, pwd->pw_name);
}
@ -466,7 +480,7 @@ main(argc, argv)
printf("Permission denied\n");
if (hostname)
syslog(LOG_NOTICE, "%s LOGIN REFUSED FROM %s",
pwd->pw_name, hostname);
pwd->pw_name, full_hostname);
else
syslog(LOG_NOTICE, "%s LOGIN REFUSED ON %s",
pwd->pw_name, tty);
@ -641,10 +655,10 @@ badlogin(name)
return;
if (hostname) {
syslog(LOG_NOTICE, "%d LOGIN FAILURE%s FROM %s",
failures, failures > 1 ? "S" : "", hostname);
failures, failures > 1 ? "S" : "", full_hostname);
syslog(LOG_AUTHPRIV|LOG_NOTICE,
"%d LOGIN FAILURE%s FROM %s, %s",
failures, failures > 1 ? "S" : "", hostname, name);
failures, failures > 1 ? "S" : "", full_hostname, name);
} else {
syslog(LOG_NOTICE, "%d LOGIN FAILURE%s ON %s",
failures, failures > 1 ? "S" : "", tty);