Date: Sun, 25 Oct 2020 14:09:01 +0000 (UTC) From: Edward Tomasz Napierala <trasz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r367038 - head/sbin/mount_nullfs Message-ID: <202010251409.09PE91aS001781@repo.freebsd.org>
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Author: trasz Date: Sun Oct 25 14:09:00 2020 New Revision: 367038 URL: https://svnweb.freebsd.org/changeset/base/367038 Log: Remove the check that prevents creating "loops" from mount_nullfs(8). Reviewed by: kib MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D26921 Modified: head/sbin/mount_nullfs/mount_nullfs.c Modified: head/sbin/mount_nullfs/mount_nullfs.c ============================================================================== --- head/sbin/mount_nullfs/mount_nullfs.c Sun Oct 25 10:08:46 2020 (r367037) +++ head/sbin/mount_nullfs/mount_nullfs.c Sun Oct 25 14:09:00 2020 (r367038) @@ -59,7 +59,6 @@ static const char rcsid[] = #include "mntopts.h" -int subdir(const char *, const char *); static void usage(void) __dead2; int @@ -104,10 +103,6 @@ main(int argc, char *argv[]) if (checkpath(argv[1], source) != 0) err(EX_USAGE, "%s", source); - if (subdir(target, source) || subdir(source, target)) - errx(EX_USAGE, "%s (%s) and %s are not distinct paths", - argv[0], target, argv[1]); - build_iovec(&iov, &iovlen, "fstype", nullfs, (size_t)-1); build_iovec(&iov, &iovlen, "fspath", source, (size_t)-1); build_iovec(&iov, &iovlen, "target", target, (size_t)-1); @@ -119,21 +114,6 @@ main(int argc, char *argv[]) err(1, "%s", source); } exit(0); -} - -int -subdir(const char *p, const char *dir) -{ - int l; - - l = strlen(dir); - if (l <= 1) - return (1); - - if ((strncmp(p, dir, l) == 0) && (p[l] == '/' || p[l] == '\0')) - return (1); - - return (0); } static void
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