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https://github.com/libguestfs/libguestfs.git
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773fa61141
Used to create temporary directory or file with an optional suffix. Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> RWMJ: - Split this out into a new file (daemon/mktemp.c). - I don't see a reason to deprecate the mkdtemp function which works fine. Instead remove complex dir-making code from the new function. - Test and fix the patch (missing close(fd)).
98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
/* libguestfs - the guestfsd daemon
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* Copyright (C) 2012 FUJITSU LTD.
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* Copyright (C) 2009 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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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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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "guestfs_protocol.h"
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#include "daemon.h"
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#include "actions.h"
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char *
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do_mkdtemp (const char *template)
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{
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char *writable = strdup (template);
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if (writable == NULL) {
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reply_with_perror ("strdup");
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return NULL;
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}
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CHROOT_IN;
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char *r = mkdtemp (writable);
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CHROOT_OUT;
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if (r == NULL) {
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reply_with_perror ("%s", template);
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free (writable);
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}
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return r;
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}
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char *
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do_mktemp (const char *template,
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const char *suffix)
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{
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char *dest_name = NULL;
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size_t suffix_len = 0;
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int fd;
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size_t len;
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if (optargs_bitmask & GUESTFS_MKTEMP_SUFFIX_BITMASK) {
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if (suffix) {
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len = strlen (template);
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if (len == 0 || template[len - 1] != 'X') {
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reply_with_error ("template %s must end in X", template);
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return NULL;
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}
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/* Append suffix to template. */
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suffix_len = strlen (suffix);
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if (asprintf (&dest_name, "%s%s", template, suffix) == -1) {
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reply_with_perror ("asprintf");
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return NULL;
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}
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}
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}
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if (dest_name == NULL) {
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dest_name = strdup (template);
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if (dest_name == NULL) {
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reply_with_perror ("strdup");
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return NULL;
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}
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}
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CHROOT_IN;
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fd = mkstemps (dest_name, (int) suffix_len);
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CHROOT_OUT;
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if (fd == -1) {
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reply_with_perror ("%s", dest_name);
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free (dest_name);
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return NULL;
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}
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close (fd);
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return dest_name;
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}
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