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libutil: remove SIGSYS handling from setusercontext

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It was a workaround for cases where the kernel lacks setloginclass(2),
added in the 9.x era.

Submitted by:	Pawel Biernacki
This commit is contained in:
Mateusz Guzik 2019-09-02 13:55:31 +00:00
parent 82adf9ad56
commit ebea9e6d8f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=351699
1 changed files with 0 additions and 11 deletions
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11
lib/libutil/login_class.c
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@ -40,7 +40,6 @@ __FBSDID("$FreeBSD$");
#include <login_cap.h>
#include <paths.h>
#include <pwd.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -428,7 +427,6 @@ setusercontext(login_cap_t *lc, const struct passwd *pwd, uid_t uid, unsigned in
rlim_t p;
mode_t mymask;
login_cap_t *llc = NULL;
struct sigaction sa, prevsa;
struct rtprio rtp;
int error;
@ -521,16 +519,7 @@ setusercontext(login_cap_t *lc, const struct passwd *pwd, uid_t uid, unsigned in
/* Inform the kernel about current login class */
if (lc != NULL && lc->lc_class != NULL && (flags & LOGIN_SETLOGINCLASS)) {
/*
* XXX: This is a workaround to fail gracefully in case the kernel
* does not support setloginclass(2).
*/
bzero(&sa, sizeof(sa));
sa.sa_handler = SIG_IGN;
sigfillset(&sa.sa_mask);
sigaction(SIGSYS, &sa, &prevsa);
error = setloginclass(lc->lc_class);
sigaction(SIGSYS, &prevsa, NULL);
if (error != 0) {
syslog(LOG_ERR, "setloginclass(%s): %m", lc->lc_class);
#ifdef notyet