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Really disable wtmp logging when chrooting.

Browse Source 
Also perform a small cleanup to ftpd_logwtmp(). Just use a NULL
parameter for the username to indicate a logout, instead of an empty
string.

Reported by:	Alexey Shuvaev <shuvaev physik uni-wuerzburg de>
This commit is contained in:
Ed Schouten 2010-01-18 23:28:25 +00:00
parent 12a91a4387
commit 9f37b1a2b4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=202604
2 changed files with 9 additions and 6 deletions
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13
libexec/ftpd/ftpd.c
View File

@ -1178,8 +1178,8 @@ end_login(void)
#endif
(void) seteuid(0);
if (logged_in && dowtmp && !dochroot)
ftpd_logwtmp(wtmpid, "", NULL);
if (logged_in && dowtmp)
ftpd_logwtmp(wtmpid, NULL, NULL);
pw = NULL;
#ifdef LOGIN_CAP
setusercontext(NULL, getpwuid(0), 0,
@ -1482,7 +1482,10 @@ skip:
;
chrootdir = NULL;
if (dowtmp && !dochroot)
/* Disable wtmp logging when chrooting. */
if (dochroot || guest)
dowtmp = 0;
if (dowtmp)
ftpd_logwtmp(wtmpid, pw->pw_name,
(struct sockaddr *)&his_addr);
logged_in = 1;
@ -2730,9 +2733,9 @@ void
dologout(int status)
{
if (logged_in && dowtmp && !dochroot) {
if (logged_in && dowtmp) {
(void) seteuid(0);
ftpd_logwtmp(wtmpid, "", NULL);
ftpd_logwtmp(wtmpid, NULL, NULL);
}
/* beware of flushing buffers after a SIGPIPE */
_exit(status);

2
libexec/ftpd/logwtmp.c
View File

@ -60,7 +60,7 @@ ftpd_logwtmp(char *id, char *user, struct sockaddr *addr)
memset(&ut, 0, sizeof(ut));
if (*user != '\0') {
if (user != NULL) {
/* Log in. */
ut.ut_type = USER_PROCESS;
(void)strncpy(ut.ut_user, user, sizeof(ut.ut_user));