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- Fix buffer overrun in login.c for systems which use syslen in utmpx. 

patch from YOSHIFUJI Hideaki <yoshfuji@cerberus.nemoto.ecei.tohoku.ac.jp>
This commit is contained in:
Damien Miller 2000-05-30 13:12:46 +10:00
parent be260a0f0d
commit c252e2efa1
2 changed files with 6 additions and 1 deletions
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2
ChangeLog
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@ -1,5 +1,7 @@
20000530
- Define atexit for old Solaris
- Fix buffer overrun in login.c for systems which use syslen in utmpx.
patch from YOSHIFUJI Hideaki <yoshfuji@cerberus.nemoto.ecei.tohoku.ac.jp>
20000520
- Xauth fix from Markus Friedl <markus.friedl@informatik.uni-erlangen.de>

5
login.c
View File

@ -18,7 +18,7 @@
*/
#include "includes.h"
RCSID("$Id: login.c,v 1.27 2000/05/17 12:00:03 damien Exp $");
RCSID("$Id: login.c,v 1.28 2000/05/30 03:12:46 damien Exp $");
#if defined(HAVE_UTMPX_H) && defined(USE_UTMPX)
# include <utmpx.h>
@ -217,10 +217,13 @@ record_login(pid_t pid, const char *ttyname, const char *user, uid_t uid,
# ifdef HAVE_HOST_IN_UTMPX
# ifdef HAVE_SYSLEN_IN_UTMPX
utx.ut_syslen = strlen(host);
if (utx.ut_syslen + 1 > sizeof(utx.ut_host))
utx.ut_syslen = sizeof(utx.ut_host);
strncpy(utx.ut_host, host, utx.ut_syslen);
# else
strncpy(utx.ut_host, host, sizeof(utx.ut_host));
# endif /* HAVE_SYSLEN_IN_UTMPX */
utx.ut_host[sizeof(utx.ut_host)-1] = '\0';
# endif
#if defined(HAVE_ADDR_IN_UTMPX)
if (addr) {