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d479b2cc91
This fixes an interaction of -C with incremental 'X'. Problem reported by Pavel Cahyna. * gnulib.modules: Remove mkdtemp. Add tempname, since our mkdtempat uses it. * lib/mkdtempat.c, lib/mkdtempat.h: New files. * lib/Makefile.am (noinst_HEADERS): Add mkdtempat.h. (libtar_a_SOURCES): Add mkdtempat.c. * src/incremen.c: Include mkdtempat.h. (purge_directory): Use mkdtempat, not mkdtemp.
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/* Copyright 2026 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program. If not, see <http://www.gnu.org/licenses/>.
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Written by Paul Eggert. */
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#include <config.h>
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#include "mkdtempat.h"
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#include <tempname.h>
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#include <stddef.h>
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#include <sys/stat.h>
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static int
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try_dir (char *tmpl, void *flags)
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{
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int *pdirfd = flags;
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return mkdirat (*pdirfd, tmpl, S_IRUSR | S_IWUSR | S_IXUSR);
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}
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/* Relative to the directory DIRFD if XTEMPLATE is relative,
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generate a unique temporary directory from XTEMPLATE.
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The last six characters of XTEMPLATE must be "XXXXXX";
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replace them with a string that makes the generated directory unique.
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Create the directory mode 700, and return its name.
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On failure, return NULL and set errno. */
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char *
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mkdtempat (int dirfd, char *xtemplate)
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{
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return (try_tempname_len (xtemplate, 0, &dirfd, try_dir, 6) < 0
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? NULL : xtemplate);
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}
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