Date: Thu, 07 May 2026 20:19:15 +0000 From: Colin Percival <cperciva@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Cc: Kyle Evans <kevans@FreeBSD.org> Subject: git: 60a521a8941c - releng/15.1 - stat: fix use of devname(3) Message-ID: <69fcf3c3.1e7e0.73079593@gitrepo.freebsd.org>
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The branch releng/15.1 has been updated by cperciva: URL: https://cgit.FreeBSD.org/src/commit/?id=60a521a8941c4b0386dff3a925bae431b3064fcb commit 60a521a8941c4b0386dff3a925bae431b3064fcb Author: Kyle Evans <kevans@FreeBSD.org> AuthorDate: 2026-05-01 03:00:26 +0000 Commit: Colin Percival <cperciva@FreeBSD.org> CommitDate: 2026-05-07 20:18:48 +0000 stat: fix use of devname(3) Besides being a little hard to parse through visually, this had its own bug of inspecting st->st_mode to determine what to pass to devname(3), which is only correct for st_rdev. For st_dev, you're likely to be looking at files or directories and attempting to assess what device they're located on, so the mode is meaningless- we just have to assume that our filesystems are on character devices and attempt to resolve st_dev as such. Approved by: re (cperciva) Reviewed by: des, kib (previous version) Differential Revision: https://reviews.freebsd.org/D56565 (cherry picked from commit 4d4acdbfc22c84081037f31cff4fb03d18373036) stat: The devname test case requires root Fixes: 4d4acdbfc22c ("stat: fix use of devname(3)") (cherry picked from commit 72b1aae09bf0bcc01c76df757699e27ad7cf7ecc) stat: Set the timezone before testing -t flag The test assumes UTC, which is what I use on my development systems and clearly what is used on our CI runners. MFC after: 1 week Sponsored by: Klara, Inc. Reviewed by: kevans Differential Revision: https://reviews.freebsd.org/D56836 (cherry picked from commit 49e496d2776870fb36ed8ea4c8139b5eb9f7f747) stat: Expand devname test case Test what happens when we ask for the rdev of a non-device. MFC after: 1 week Sponsored by: Klara, Inc. Reviewed by: kevans Differential Revision: https://reviews.freebsd.org/D56838 (cherry picked from commit 2c88636e0e7a0316d5e6d146874bdb2751f75c40) (cherry picked from commit 88f5520fa564ef1050bab6e091ead4040eb6d170) --- usr.bin/stat/stat.c | 14 +++++++++++--- usr.bin/stat/tests/stat_test.sh | 40 ++++++++++++++++++++++++++++++++++++++-- 2 files changed, 49 insertions(+), 5 deletions(-) diff --git a/usr.bin/stat/stat.c b/usr.bin/stat/stat.c index 0ed5d3ae5b53..ad2b3f9fb3d1 100644 --- a/usr.bin/stat/stat.c +++ b/usr.bin/stat/stat.c @@ -650,6 +650,7 @@ format1(const struct stat *st, struct timespec ts; struct tm *tm; int l, small, formats; + mode_t dtype; tsp = NULL; formats = 0; @@ -665,9 +666,16 @@ format1(const struct stat *st, small = (sizeof(st->st_dev) == 4); data = (what == SHOW_st_dev) ? st->st_dev : st->st_rdev; #if HAVE_DEVNAME - sdata = devname(what == SHOW_st_dev ? st->st_dev : - st->st_rdev, S_ISCHR(st->st_mode) ? S_IFCHR : - (S_ISBLK(st->st_mode) ? S_IFBLK : 0)); + switch (what) { + case SHOW_st_dev: + dtype = S_IFCHR; + break; + case SHOW_st_rdev: + dtype = st->st_mode & (S_IFCHR | S_IFBLK); + break; + } + + sdata = devname(data, dtype); #endif /* HAVE_DEVNAME */ if (hilo == HIGH_PIECE) { data = major(data); diff --git a/usr.bin/stat/tests/stat_test.sh b/usr.bin/stat/tests/stat_test.sh index 6043686396be..aa8563c62ccc 100755 --- a/usr.bin/stat/tests/stat_test.sh +++ b/usr.bin/stat/tests/stat_test.sh @@ -1,7 +1,7 @@ # # Copyright (c) 2017 Dell EMC # All rights reserved. -# Copyright (c) 2025 Klara, Inc. +# Copyright (c) 2025-2026 Klara, Inc. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions @@ -25,6 +25,9 @@ # SUCH DAMAGE. # +: ${CHKPATH:="mnt"} +: ${NODEV:="#NODEV"} + atf_test_case F_flag F_flag_head() { @@ -232,9 +235,9 @@ t_flag_head() { atf_set "descr" "Verify the output format for -t" } - t_flag_body() { + export TZ=UTC atf_check touch foo atf_check touch -d 1970-01-01T00:00:42 foo atf_check -o inline:'42\n' \ @@ -301,6 +304,38 @@ x_flag_body() done } +atf_test_case devname cleanup +devname_head() +{ + atf_set "descr" "Verify that %Sd outputs a device name" + atf_set "require.user" "root" +} +devname_body() +{ + local devname devpath + + atf_check -o save:dev mdconfig -t malloc -s 16M + read devname < dev + devpath="/dev/$devname" + atf_check -o not-empty newfs "$devpath" + + atf_check mkdir "$CHKPATH" + atf_check mount "$devpath" "$CHKPATH" + + atf_check -o inline:"$devname\n" stat -f '%Sd' "$CHKPATH" + atf_check -o inline:"$devname\n" stat -f '%Sr' "$devpath" + atf_check -o inline:"$NODEV\n" stat -f '%Sr' "$CHKPATH" +} +devname_cleanup() +{ + if [ -d "$CHKPATH" ]; then + umount "$CHKPATH" || true + fi + if [ -f dev ]; then + mdconfig -d -u $(cat dev) || true + fi +} + atf_init_test_cases() { atf_add_test_case F_flag @@ -315,4 +350,5 @@ atf_init_test_cases() atf_add_test_case s_flag atf_add_test_case t_flag atf_add_test_case x_flag + atf_add_test_case devname }home | help
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