git: 30697383812e - stable/13 - mktemp: add -p/--tmpdir argument
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Date: Sun, 13 Nov 2022 05:38:07 UTC
The branch stable/13 has been updated by kevans: URL: https://cgit.FreeBSD.org/src/commit/?id=30697383812ee71e2e52eedc8e247c9cd670b56c commit 30697383812ee71e2e52eedc8e247c9cd670b56c Author: Kyle Evans <kevans@FreeBSD.org> AuthorDate: 2022-10-31 03:55:46 +0000 Commit: Kyle Evans <kevans@FreeBSD.org> CommitDate: 2022-11-13 05:37:29 +0000 mktemp: add -p/--tmpdir argument This matches other mktemp implementations, including OpenBSD and GNU. The -p option can be used to provide a tmpdir prefix for specified templates. Precedence works out like so: -t flag: - $TMPDIR - -p directory - /tmp Implied -t flag (no arguments or only -d flag): - -p directory - $TMPDIR - /tmp Some tests have been added for mktemp(1) in the process. Reviewed by: imp (earlier version), wosch Sponsored by: Klara, Inc. (cherry picked from commit ac6f924e1cd1ebd9832227e906ebc03e3ba5eede) (cherry picked from commit d22f03636be1c012951f744f414b0d410970808e) --- etc/mtree/BSD.tests.dist | 2 + usr.bin/mktemp/Makefile | 5 ++ usr.bin/mktemp/mktemp.1 | 35 ++++++++++- usr.bin/mktemp/mktemp.c | 52 +++++++++++++--- usr.bin/mktemp/tests/Makefile | 7 +++ usr.bin/mktemp/tests/mktemp_test.sh | 118 ++++++++++++++++++++++++++++++++++++ 6 files changed, 209 insertions(+), 10 deletions(-) diff --git a/etc/mtree/BSD.tests.dist b/etc/mtree/BSD.tests.dist index e902a33ca417..b4050937dfc3 100644 --- a/etc/mtree/BSD.tests.dist +++ b/etc/mtree/BSD.tests.dist @@ -1044,6 +1044,8 @@ .. mkimg .. + mktemp + .. ncal .. opensm diff --git a/usr.bin/mktemp/Makefile b/usr.bin/mktemp/Makefile index 0e23063431c2..72e3d7306bb8 100644 --- a/usr.bin/mktemp/Makefile +++ b/usr.bin/mktemp/Makefile @@ -1,7 +1,12 @@ # $FreeBSD$ +.include <src.opts.mk> + PACKAGE= runtime PROG= mktemp +HAS_TESTS= +SUBDIR.${MK_TESTS}+= tests + .include <bsd.prog.mk> diff --git a/usr.bin/mktemp/mktemp.1 b/usr.bin/mktemp/mktemp.1 index 469d4f6097d0..5835cf4b1b3f 100644 --- a/usr.bin/mktemp/mktemp.1 +++ b/usr.bin/mktemp/mktemp.1 @@ -37,12 +37,14 @@ .Sh SYNOPSIS .Nm .Op Fl d +.Op Fl p Ar tmpdir .Op Fl q .Op Fl t Ar prefix .Op Fl u .Ar template ... .Nm .Op Fl d +.Op Fl p Ar tmpdir .Op Fl q .Op Fl u .Fl t Ar prefix @@ -91,10 +93,20 @@ will generate a template string based on the and the .Ev TMPDIR environment variable if set. -The default location if +If the +.Fl p +option is set, then the given +.Ar tmpdir +will be used if the +.Ev TMPDIR +environment variable is not set. +Finally, +.Pa /tmp +will be used if neither .Ev TMPDIR -is not set is -.Pa /tmp . +or +.Fl p +are set and used. Care should be taken to ensure that it is appropriate to use an environment variable potentially supplied by the user. @@ -134,6 +146,23 @@ The available options are as follows: .Bl -tag -width indent .It Fl d , Fl -directory Make a directory instead of a file. +.It Fl p Ar tmpdir , Fl -tmpdir Ns Oo = Ns Ar tmpdir Oc +Use +.Ar tmpdir +for the +.Fl t +flag if the +.Ev TMPDIR +environment variable is not set. +Additionally, any provided +.Ar template +arguments will be interpreted relative to the path specified as +.Ar tmpdir . +If +.Ar tmpdir +is either empty or omitted, then the +.Ev TMPDIR +environment variable will be used. .It Fl q , Fl -quiet Fail silently if an error occurs. This is useful if diff --git a/usr.bin/mktemp/mktemp.c b/usr.bin/mktemp/mktemp.c index dc92de2961d0..77245d2fa0d3 100644 --- a/usr.bin/mktemp/mktemp.c +++ b/usr.bin/mktemp/mktemp.c @@ -39,6 +39,7 @@ #include <err.h> #include <getopt.h> #include <paths.h> +#include <stdbool.h> #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -53,6 +54,7 @@ static void usage(void); static const struct option long_opts[] = { {"directory", no_argument, NULL, 'd'}, + {"tmpdir", optional_argument, NULL, 'p'}, {"quiet", no_argument, NULL, 'q'}, {"dry-run", no_argument, NULL, 'u'}, {NULL, no_argument, NULL, 0}, @@ -62,21 +64,35 @@ int main(int argc, char **argv) { int c, fd, ret; - char *tmpdir; - const char *prefix; + const char *prefix, *tmpdir; char *name; int dflag, qflag, tflag, uflag; + bool prefer_tmpdir; ret = dflag = qflag = tflag = uflag = 0; + prefer_tmpdir = true; prefix = "mktemp"; name = NULL; + tmpdir = NULL; - while ((c = getopt_long(argc, argv, "dqt:u", long_opts, NULL)) != -1) + while ((c = getopt_long(argc, argv, "dp:qt:u", long_opts, NULL)) != -1) switch (c) { case 'd': dflag++; break; + case 'p': + tmpdir = optarg; + if (tmpdir == NULL || *tmpdir == '\0') + tmpdir = getenv("TMPDIR"); + + /* + * We've already done the necessary environment + * fallback, skip the later one. + */ + prefer_tmpdir = false; + break; + case 'q': qflag++; break; @@ -100,10 +116,26 @@ main(int argc, char **argv) if (!tflag && argc < 1) { tflag = 1; prefix = "tmp"; + + /* + * For this implied -t mode, we actually want to swap the usual + * order of precedence: -p, then TMPDIR, then /tmp. + */ + prefer_tmpdir = false; } if (tflag) { - tmpdir = getenv("TMPDIR"); + const char *envtmp; + + envtmp = NULL; + + /* + * $TMPDIR preferred over `-p` if specified, for compatibility. + */ + if (prefer_tmpdir || tmpdir == NULL) + envtmp = getenv("TMPDIR"); + if (envtmp != NULL) + tmpdir = envtmp; if (tmpdir == NULL) asprintf(&name, "%s%s.XXXXXXXX", _PATH_TMP, prefix); else @@ -120,7 +152,12 @@ main(int argc, char **argv) /* generate all requested files */ while (name != NULL || argc > 0) { if (name == NULL) { - name = strdup(argv[0]); + if (!tflag && tmpdir != NULL) + asprintf(&name, "%s/%s", tmpdir, argv[0]); + else + name = strdup(argv[0]); + if (name == NULL) + err(1, "%s", argv[0]); argv++; argc--; } @@ -159,8 +196,9 @@ static void usage(void) { fprintf(stderr, - "usage: mktemp [-d] [-q] [-t prefix] [-u] template ...\n"); + "usage: mktemp [-d] [-p tmpdir] [-q] [-t prefix] [-u] template " + "...\n"); fprintf(stderr, - " mktemp [-d] [-q] [-u] -t prefix \n"); + " mktemp [-d] [-p tmpdir] [-q] [-u] -t prefix \n"); exit (1); } diff --git a/usr.bin/mktemp/tests/Makefile b/usr.bin/mktemp/tests/Makefile new file mode 100644 index 000000000000..5141bf0faade --- /dev/null +++ b/usr.bin/mktemp/tests/Makefile @@ -0,0 +1,7 @@ +# $FreeBSD$ + +PACKAGE= tests + +ATF_TESTS_SH+= mktemp_test + +.include <bsd.test.mk> diff --git a/usr.bin/mktemp/tests/mktemp_test.sh b/usr.bin/mktemp/tests/mktemp_test.sh new file mode 100755 index 000000000000..c424030fac4f --- /dev/null +++ b/usr.bin/mktemp/tests/mktemp_test.sh @@ -0,0 +1,118 @@ +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2022 Klara Systems +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# $FreeBSD$ + +atf_test_case tmpdir_env +tmpdir_env_body() +{ + + tmpdir="$PWD" + + atf_check -o match:"^$tmpdir/foo\..+$" \ + env TMPDIR="$tmpdir" mktemp -t foo +} + +atf_test_case tmpdir_pflag +tmpdir_pflag_body() +{ + + mkdir tmp_p tmp_env + + tmpdir="$PWD/tmp_env" + export TMPDIR="$tmpdir" + + pflag="$PWD/tmp_p" + + # Basic usage: just -p specified + atf_check -o match:"^$pflag/tmp\..+$" \ + env -u TMPDIR mktemp -p "$pflag" + atf_check -o match:"^$pflag/tmp\..+$" \ + env TMPDIR="$tmpdir" mktemp -p "$pflag" + + # -p with a list of names + atf_check -o ignore env -u TMPDIR mktemp -p "$pflag" x y z + atf_check test -f "$pflag/x" + atf_check test -f "$pflag/y" + atf_check test -f "$pflag/z" + + # Checking --tmpdir usage, which should defer to $TMPDIR followed by + # /tmp with no value specified. + atf_check -o match:"^/tmp/foo\..+$" \ + env -u TMPDIR mktemp --tmpdir -t foo + atf_check -o match:"^$tmpdir/foo\..+$" \ + env TMPDIR="$tmpdir" mktemp --tmpdir -t foo + + # Finally, combined -p -t + atf_check -o match:"^$pflag/foo\..+$" \ + env -u TMPDIR mktemp -p "$pflag" -t foo + atf_check -o match:"^$pflag/foo\..+$" \ + env TMPDIR="$tmpdir" mktemp -p "$pflag" -t foo +} + +atf_test_case tmpdir_pflag_dir +tmpdir_pflag_dir_body() +{ + + tmpdir="$PWD" + atf_check -o save:tmpname \ + env -u TMPDIR mktemp -d -p "$tmpdir" -t foo + + # Better diagnostics when using -o match: + cat rather than grep. + atf_check -o match:"^$tmpdir/foo\..+$" cat tmpname + cdir=$(cat tmpname) + + atf_check test -d "$cdir" + + atf_check -o match:"^$tmpdir/footmp$" \ + env -u TMPDIR mktemp -d -p "$tmpdir" footmp + atf_check test -d "$tmpdir/footmp" +} + +atf_test_case tmpdir_pflag_noarg +tmpdir_pflag_noarg_body() +{ + + # Without -t, this time; this introduces $TMPDIR without having to use + # it. + tmpdir="$PWD" + atf_check -o save:tmpname \ + env TMPDIR="$tmpdir" mktemp --tmpdir foo.XXXXXXXX + atf_check -o match:"^$tmpdir/foo\..+$" cat tmpname + + # An empty string gets the same treatment. + atf_check -o save:tmpname \ + env TMPDIR="$tmpdir" mktemp -p '' foo.XXXXXXXX + atf_check -o match:"^$tmpdir/foo\..+$" cat tmpname +} + +atf_init_test_cases() +{ + atf_add_test_case tmpdir_env + atf_add_test_case tmpdir_pflag + atf_add_test_case tmpdir_pflag_dir + atf_add_test_case tmpdir_pflag_noarg +}