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authorDamien Miller <djm@mindrot.org>2000-05-01 22:53:53 +1000
committerDamien Miller <djm@mindrot.org>2000-05-01 22:53:53 +1000
commit0e489dc5aed9d54ce1943e6bde26f1d22ac13ded (patch)
treecc401bf2ad4d1b2bd970ea3fdbf8c2459f60f808
parent35dabd0398dc4aa8735d5ec896ead6955b83b2ff (diff)
- Merged bsd-login ttyslot and AIX utmp patch from Gert Doering
<gd@hilb1.medat.de>
-rw-r--r--CREDITS1
-rw-r--r--ChangeLog2
-rw-r--r--bsd-login.c99
-rw-r--r--login.c6
4 files changed, 90 insertions, 18 deletions
diff --git a/CREDITS b/CREDITS
index 47048084..b8f231c6 100644
--- a/CREDITS
+++ b/CREDITS
@@ -22,6 +22,7 @@ David Hesprich <darkgrue@gue-tech.org> - Configure fixes
David Rankin <drankin@bohemians.lexington.ky.us> - libwrap, AIX, NetBSD fixes
Gary E. Miller <gem@rellim.com> - SCO support
Ged Lodder <lodder@yacc.com.au> - HPUX fixes and enhancements
+Gert Doering <gd@hilb1.medat.de> - bug and portability fixes
HARUYAMA Seigo <haruyama@nt.phys.s.u-tokyo.ac.jp> - Translations & doc fixes
Hideaki YOSHIFUJI <yoshfuji@ecei.tohoku.ac.jp> - IPv6 fixes
Hiroshi Takekawa <takekawa@sr3.t.u-tokyo.ac.jp> - Configure fixes
diff --git a/ChangeLog b/ChangeLog
index f015f562..d48430a5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -16,6 +16,8 @@
<karn@ka9q.ampr.org>
- Fixed __progname symbol collisions reported by Andre Lucas
<andre.lucas@dial.pipex.com>
+ - Merged bsd-login ttyslot and AIX utmp patch from Gert Doering
+ <gd@hilb1.medat.de>
20000430
- Merge HP-UX fixes and TCB support from Ged Lodder <lodder@yacc.com.au>
diff --git a/bsd-login.c b/bsd-login.c
index eccb29ee..910f9ff9 100644
--- a/bsd-login.c
+++ b/bsd-login.c
@@ -1,3 +1,7 @@
+/*
+ * This file has been modified from the original OpenBSD version
+ */
+
/* $OpenBSD: login.c,v 1.5 1998/07/13 02:11:12 millert Exp $ */
/*
* Copyright (c) 1988, 1993
@@ -35,6 +39,8 @@
#include "config.h"
#ifndef HAVE_LOGIN
+#include <errno.h>
+
#if defined(LIBC_SCCS) && !defined(lint)
/* from: static char sccsid[] = "@(#)login.c 8.1 (Berkeley) 6/4/93"; */
static char *rcsid = "$OpenBSD: login.c,v 1.5 1998/07/13 02:11:12 millert Exp $";
@@ -54,6 +60,40 @@ static char *rcsid = "$OpenBSD: login.c,v 1.5 1998/07/13 02:11:12 millert Exp $"
#include <stdio.h>
#include <string.h>
+/*
+ * find first matching slot in utmp, or "-1" for none
+ *
+ * algorithm: for USER_PROCESS, check tty name
+ * for DEAD_PROCESS, check PID and tty name
+ *
+ */
+int find_tty_slot( utp )
+struct utmp * utp;
+{
+ int t = 0;
+ struct utmp * u;
+
+ setutent();
+
+ while((u = getutent()) != NULL) {
+ if (utp->ut_type == USER_PROCESS &&
+ (strncmp(utp->ut_line, u->ut_line, sizeof(utp->ut_line)) == 0)) {
+ endutent();
+ return(t);
+ }
+
+ if ((utp->ut_type == DEAD_PROCESS) && (utp->ut_pid == u->ut_pid) &&
+ (strncmp(utp->ut_line, u->ut_line, sizeof(utp->ut_line)) == 0 )) {
+ endutent();
+ return(t);
+ }
+ t++;
+ }
+
+ endutent();
+ return(-1);
+}
+
#if defined(HAVE_UTMPX_H) && defined(USE_UTMPX)
void
login(utp,utx)
@@ -74,32 +114,57 @@ login(utp)
register int fd;
int tty;
- tty = ttyslot();
- if (tty > 0 && (fd = open(_PATH_UTMP, O_RDWR|O_CREAT, 0644)) >= 0) {
+ /* can't use ttyslot here, as that will not work for logout
+ * (record_logout() is called from the master sshd, which does
+ * not have the correct tty on stdin/out, so ttyslot will return
+ * "-1" or (worse) a wrong number
+ */
+ tty = find_tty_slot(utp);
+ fd = open(_PATH_UTMP, O_RDWR|O_CREAT, 0644);
+ if (fd == -1) {
+ log("Couldn't open %s: %s", _PATH_UTMP, strerror(errno));
+ } else {
+ /* If no tty was found... */
+ if (tty == -1) {
+ /* ... append it to utmp on login */
+ if (utp->ut_type == USER_PROCESS) {
+ if ((fd = open(_PATH_UTMP, O_WRONLY|O_APPEND, 0)) >= 0) {
+ (void)write(fd, utp, sizeof(struct utmp));
+ (void)close(fd);
+ }
+ } else {
+ /* Shouldn't get to here unless somthing happened to utmp */
+ /* Between login and logout */
+ log("No tty slot found at logout");
+ }
+ } else {
+ /* Otherwise, tty was found - update at its location */
#if defined(HAVE_HOST_IN_UTMP)
# ifndef UT_LINESIZE
# define UT_LINESIZE (sizeof(old_ut.ut_line))
# define UT_NAMESIZE (sizeof(old_ut.ut_name))
# define UT_HOSTSIZE (sizeof(old_ut.ut_host))
# endif
- (void)lseek(fd, (off_t)(tty * sizeof(struct utmp)), SEEK_SET);
- /*
- * Prevent luser from zero'ing out ut_host.
- * If the new ut_line is empty but the old one is not
- * and ut_line and ut_name match, preserve the old ut_line.
- */
- if (read(fd, &old_ut, sizeof(struct utmp)) ==
- sizeof(struct utmp) && utp->ut_host[0] == '\0' &&
- old_ut.ut_host[0] != '\0' &&
- strncmp(old_ut.ut_line, utp->ut_line, UT_LINESIZE) == 0 &&
- strncmp(old_ut.ut_name, utp->ut_name, UT_NAMESIZE) == 0)
- (void)memcpy(utp->ut_host, old_ut.ut_host, UT_HOSTSIZE);
+ (void)lseek(fd, (off_t)(tty * sizeof(struct utmp)), SEEK_SET);
+ /*
+ * Prevent luser from zero'ing out ut_host.
+ * If the new ut_line is empty but the old one is not
+ * and ut_line and ut_name match, preserve the old ut_line.
+ */
+ if (read(fd, &old_ut, sizeof(struct utmp)) ==
+ sizeof(struct utmp) && utp->ut_host[0] == '\0' &&
+ old_ut.ut_host[0] != '\0' &&
+ strncmp(old_ut.ut_line, utp->ut_line, UT_LINESIZE) == 0 &&
+ strncmp(old_ut.ut_name, utp->ut_name, UT_NAMESIZE) == 0)
+ (void)memcpy(utp->ut_host, old_ut.ut_host, UT_HOSTSIZE);
#endif /* defined(HAVE_HOST_IN_UTMP) */
- (void)lseek(fd, (off_t)(tty * sizeof(struct utmp)), SEEK_SET);
- (void)write(fd, utp, sizeof(struct utmp));
- (void)close(fd);
+ (void)lseek(fd, (off_t)(tty * sizeof(struct utmp)), SEEK_SET);
+ (void)write(fd, utp, sizeof(struct utmp));
+ (void)close(fd);
+ }
}
+
if ((fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) >= 0) {
(void)write(fd, utp, sizeof(struct utmp));
(void)close(fd);
diff --git a/login.c b/login.c
index de2c89cb..660eb670 100644
--- a/login.c
+++ b/login.c
@@ -18,7 +18,7 @@
*/
#include "includes.h"
-RCSID("$Id: login.c,v 1.24 2000/04/19 21:42:22 damien Exp $");
+RCSID("$Id: login.c,v 1.25 2000/05/01 12:53:53 damien Exp $");
#if defined(HAVE_UTMPX_H) && defined(USE_UTMPX)
# include <utmpx.h>
@@ -155,7 +155,11 @@ record_login(pid_t pid, const char *ttyname, const char *user, uid_t uid,
memset(&u, 0, sizeof(u));
strncpy(u.ut_line, ttyname + 5, sizeof(u.ut_line));
#if defined(HAVE_ID_IN_UTMP)
+#ifdef _AIX
+ strncpy(u.ut_id, ttyname + 5, sizeof(u.ut_id));
+#else /* !AIX */
strncpy(u.ut_id, ttyname + 8, sizeof(u.ut_id));
+#endif
#endif /* defined(HAVE_ID_IN_UTMP) */
strncpy(u.ut_name, user, sizeof(u.ut_name));
#if defined(HAVE_TV_IN_UTMP)