git: 6b3ad1d73732 - main - When -u option is used also set USER, HOME and SHELL variables. This is consistent with what other uid-morphing utilities do, i.e. jexec(1), su(1) etc.

From: Maxim Sobolev <sobomax_at_FreeBSD.org>
Date: Fri, 12 Aug 2022 17:08:38 UTC
The branch main has been updated by sobomax:

URL: https://cgit.FreeBSD.org/src/commit/?id=6b3ad1d737321cf6a70e957fb15d5287c378373c

commit 6b3ad1d737321cf6a70e957fb15d5287c378373c
Author:     Maxim Sobolev <sobomax@FreeBSD.org>
AuthorDate: 2022-08-11 01:44:20 +0000
Commit:     Maxim Sobolev <sobomax@FreeBSD.org>
CommitDate: 2022-08-12 17:07:56 +0000

    When -u option is used also set USER, HOME and SHELL variables.
    This is consistent with what other uid-morphing utilities
    do, i.e. jexec(1), su(1) etc.
    
    MFC after:      2 weeks
    Reviewed by:    gbe
    Differential Revision:  https://reviews.freebsd.org/D36148
---
 usr.sbin/daemon/daemon.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/usr.sbin/daemon/daemon.c b/usr.sbin/daemon/daemon.c
index d8a26132223b..e8cdaa230caa 100644
--- a/usr.sbin/daemon/daemon.c
+++ b/usr.sbin/daemon/daemon.c
@@ -42,6 +42,7 @@ __FBSDID("$FreeBSD$");
 #include <errno.h>
 #include <libutil.h>
 #include <login_cap.h>
+#include <paths.h>
 #include <pwd.h>
 #include <signal.h>
 #include <stdio.h>
@@ -465,6 +466,10 @@ restrict_process(const char *user)
 
 	if (setusercontext(NULL, pw, pw->pw_uid, LOGIN_SETALL) != 0)
 		errx(1, "failed to set user environment");
+
+	setenv("USER", pw->pw_name, 1);
+	setenv("HOME", pw->pw_dir, 1);
+	setenv("SHELL", *pw->pw_shell ? pw->pw_shell : _PATH_BSHELL, 1);
 }
 
 /*