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c8238579fb
Historically, we declared pointer type to our types: typedef struct _virXXX virXXX; typedef virXXX *virXXXPtr; But usefulness of such declaration is questionable, at best. Unfortunately, we can't drop every such declaration - we have to carry some over, because they are part of public API (e.g. virDomainPtr). But for internal types - we can do drop them and use what every other C project uses 'virXXX *'. This change was generated by a very ugly shell script that generated sed script which was then called over each file in the repository. For the shell script refer to the cover letter: https://listman.redhat.com/archives/libvir-list/2021-March/msg00537.html Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
170 lines
4.5 KiB
C
170 lines
4.5 KiB
C
/*
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* qemu_interop_config.c: QEMU firmware/vhost-user etc configs
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*
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* Copyright (C) 2019 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include "qemu_interop_config.h"
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#include "configmake.h"
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#include "viralloc.h"
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#include "virenum.h"
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#include "virerror.h"
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#include "virfile.h"
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#include "virhash.h"
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#include "virlog.h"
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#include "virstring.h"
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#include "virutil.h"
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#define VIR_FROM_THIS VIR_FROM_QEMU
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VIR_LOG_INIT("qemu.qemu_configs");
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static int
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qemuBuildFileList(GHashTable *files, const char *dir)
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{
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g_autoptr(DIR) dirp = NULL;
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struct dirent *ent = NULL;
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int rc;
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if ((rc = virDirOpenIfExists(&dirp, dir)) < 0)
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return -1;
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if (rc == 0)
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return 0;
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while ((rc = virDirRead(dirp, &ent, dir)) > 0) {
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g_autofree char *filename = NULL;
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g_autofree char *path = NULL;
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struct stat sb;
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if (STRPREFIX(ent->d_name, "."))
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continue;
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filename = g_strdup(ent->d_name);
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path = g_strdup_printf("%s/%s", dir, filename);
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if (stat(path, &sb) < 0) {
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virReportSystemError(errno, _("Unable to access %s"), path);
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return -1;
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}
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if (!S_ISREG(sb.st_mode) && !S_ISLNK(sb.st_mode))
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continue;
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if (virHashUpdateEntry(files, filename, path) < 0)
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return -1;
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path = NULL;
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}
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if (rc < 0)
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return -1;
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return 0;
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}
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#define QEMU_SYSTEM_LOCATION PREFIX "/share/qemu"
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#define QEMU_ETC_LOCATION SYSCONFDIR "/qemu"
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int
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qemuInteropFetchConfigs(const char *name,
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char ***configs,
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bool privileged)
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{
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g_autoptr(GHashTable) files = NULL;
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g_autofree char *homeConfig = NULL;
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g_autofree char *xdgConfig = NULL;
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g_autofree char *sysLocation = virFileBuildPath(QEMU_SYSTEM_LOCATION, name, NULL);
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g_autofree char *etcLocation = virFileBuildPath(QEMU_ETC_LOCATION, name, NULL);
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g_autofree virHashKeyValuePair *pairs = NULL;
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size_t npairs;
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virHashKeyValuePair *tmp = NULL;
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size_t nconfigs = 0;
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*configs = NULL;
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if (!privileged) {
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/* This is a slight divergence from the specification.
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* Since the system daemon runs as root, it doesn't make
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* much sense to parse files in root's home directory. It
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* makes sense only for session daemon which runs under
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* regular user. */
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xdgConfig = g_strdup(getenv("XDG_CONFIG_HOME"));
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if (!xdgConfig) {
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g_autofree char *home = virGetUserDirectory();
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xdgConfig = g_strdup_printf("%s/.config", home);
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}
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homeConfig = g_strdup_printf("%s/qemu/%s", xdgConfig, name);
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}
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if (!(files = virHashNew(g_free)))
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return -1;
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if (qemuBuildFileList(files, sysLocation) < 0)
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return -1;
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if (qemuBuildFileList(files, etcLocation) < 0)
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return -1;
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if (homeConfig &&
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qemuBuildFileList(files, homeConfig) < 0)
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return -1;
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/* At this point, the @files hash table contains unique set of filenames
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* where each filename (as key) has the highest priority full pathname
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* associated with it. */
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if (!(pairs = virHashGetItems(files, &npairs, true)))
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return -1;
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if (npairs == 0)
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return 0;
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*configs = g_new0(char *, npairs + 1);
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for (tmp = pairs; tmp->key; tmp++) {
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const char *path = tmp->value;
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off_t len;
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if ((len = virFileLength(path, -1)) < 0) {
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virReportSystemError(errno,
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_("unable to get size of '%s'"),
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path);
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return -1;
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}
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VIR_DEBUG("%s description path '%s' len=%jd",
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name, path, (intmax_t) len);
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if (len == 0) {
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/* Empty files are used to mask less specific instances
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* of the same file. */
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continue;
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}
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(*configs)[nconfigs++] = g_strdup(path);
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}
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return 0;
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}
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