Date: Mon, 19 Aug 2019 14:20:26 +0000 (UTC) From: Alan Somers <asomers@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r351216 - head/sbin/ping6 Message-ID: <201908191420.x7JEKQWH060830@repo.freebsd.org>
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Author: asomers Date: Mon Aug 19 14:20:26 2019 New Revision: 351216 URL: https://svnweb.freebsd.org/changeset/base/351216 Log: ping6: revert r350857 Some socket options require root privileges to set. The old code did indeed drop privileges at the earliest opportunity. Submitted by: Ján Sučan <sucanjan@gmail.com> MFC after: Never Sponsored by: Google, Inc. (Google Summer of Code 2019) Differential Revision: https://reviews.freebsd.org/D21319 Modified: head/sbin/ping6/ping6.c Modified: head/sbin/ping6/ping6.c ============================================================================== --- head/sbin/ping6/ping6.c Mon Aug 19 14:11:54 2019 (r351215) +++ head/sbin/ping6/ping6.c Mon Aug 19 14:20:26 2019 (r351216) @@ -663,12 +663,6 @@ main(int argc, char *argv[]) err(1, "socket srecv"); freeaddrinfo(res); - /* revoke root privilege */ - if (seteuid(getuid()) != 0) - err(1, "seteuid() failed"); - if (setuid(getuid()) != 0) - err(1, "setuid() failed"); - /* set the source address if specified. */ if ((options & F_SRCADDR) != 0) { /* properly fill sin6_scope_id */ @@ -738,6 +732,12 @@ main(int argc, char *argv[]) err(1, "setsockopt(IPV6_RECVRTHDRDSTOPTS)"); #endif } + + /* revoke root privilege */ + if (seteuid(getuid()) != 0) + err(1, "seteuid() failed"); + if (setuid(getuid()) != 0) + err(1, "setuid() failed"); if ((options & F_FLOOD) && (options & F_INTERVAL)) errx(1, "-f and -i incompatible options");
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