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login: log PAM errors to syslog, not stderr

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By Ian Wienand (ianw AT vmware.com)

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2009-09-25 01:50:45 +02:00
parent 21d87d495a
commit c297ea97e2
1 changed files with 3 additions and 1 deletions
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4
loginutils/login.c
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@ -409,7 +409,9 @@ int login_main(int argc UNUSED_PARAM, char **argv)
break; /* success, continue login process */
pam_auth_failed:
bb_error_msg("pam_%s call failed: %s (%d)", failed_msg,
/* syslog, because we don't want potential attacker
* to know _why_ login failed */
syslog(LOG_WARNING, "pam_%s call failed: %s (%d)", failed_msg,
pam_strerror(pamh, pamret), pamret);
safe_strncpy(username, "UNKNOWN", sizeof(username));
#else /* not PAM */