]> xenbits.xensource.com Git - libvirt.git/commitdiff
lxc: Use g_strdup_printf() instead of virAsprintf()
authorMichal Privoznik <mprivozn@redhat.com>
Tue, 22 Oct 2019 13:26:14 +0000 (15:26 +0200)
committerMichal Privoznik <mprivozn@redhat.com>
Tue, 12 Nov 2019 15:15:58 +0000 (16:15 +0100)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
src/lxc/lxc_container.c
src/lxc/lxc_controller.c
src/lxc/lxc_driver.c
src/lxc/lxc_fuse.c
src/lxc/lxc_monitor.c
src/lxc/lxc_native.c
src/lxc/lxc_process.c

index abad36c5aa0560b1ea08c3cacc11527f30809b11..bdd77722c90d98e2bd82269a44ee6ea156fd2233 100644 (file)
@@ -679,9 +679,7 @@ static int lxcContainerPrepareRoot(virDomainDefPtr def,
     if (lxcContainerResolveSymlinks(root, false) < 0)
         return -1;
 
-    if (virAsprintf(&dst, "%s/%s.root",
-                    LXC_STATE_DIR, def->name) < 0)
-        return -1;
+    dst = g_strdup_printf("%s/%s.root", LXC_STATE_DIR, def->name);
 
     tmp = root->dst;
     root->dst = dst;
@@ -716,8 +714,7 @@ static int lxcContainerPivotRoot(virDomainFSDefPtr root)
         goto err;
     }
 
-    if (virAsprintf(&oldroot, "%s/.oldroot", root->src->path) < 0)
-        goto err;
+    oldroot = g_strdup_printf("%s/.oldroot", root->src->path);
 
     if (virFileMakePath(oldroot) < 0) {
         virReportSystemError(errno,
@@ -736,8 +733,7 @@ static int lxcContainerPivotRoot(virDomainFSDefPtr root)
     }
 
     /* Create a directory called 'new' in tmpfs */
-    if (virAsprintf(&newroot, "%s/new", oldroot) < 0)
-        goto err;
+    newroot = g_strdup_printf("%s/new", oldroot);
 
     if (virFileMakePath(newroot) < 0) {
         virReportSystemError(errno,
@@ -922,8 +918,7 @@ static int lxcContainerMountBasicFS(bool userns_enabled,
             char *hostdir;
             int ret;
 
-            if (virAsprintf(&hostdir, "/.oldroot%s", mnt->dst) < 0)
-                goto cleanup;
+            hostdir = g_strdup_printf("/.oldroot%s", mnt->dst);
 
             ret = virFileIsMountPoint(hostdir);
             VIR_FREE(hostdir);
@@ -1014,11 +1009,9 @@ static int lxcContainerMountProcFuse(virDomainDefPtr def,
 
     VIR_DEBUG("Mount /proc/meminfo stateDir=%s", stateDir);
 
-    if ((ret = virAsprintf(&meminfo_path,
-                           "/.oldroot/%s/%s.fuse/meminfo",
-                           stateDir,
-                           def->name)) < 0)
-        return ret;
+    meminfo_path = g_strdup_printf("/.oldroot/%s/%s.fuse/meminfo",
+                                   stateDir,
+                                   def->name);
 
     if ((ret = mount(meminfo_path, "/proc/meminfo",
                      NULL, MS_BIND, NULL)) < 0) {
@@ -1047,9 +1040,7 @@ static int lxcContainerMountFSDev(virDomainDefPtr def,
 
     VIR_DEBUG("Mount /dev/ stateDir=%s", stateDir);
 
-    if ((ret = virAsprintf(&path, "/.oldroot/%s/%s.dev",
-                           stateDir, def->name)) < 0)
-        return ret;
+    path = g_strdup_printf("/.oldroot/%s/%s.dev", stateDir, def->name);
 
     if (virFileMakePath("/dev") < 0) {
         virReportSystemError(errno, "%s",
@@ -1083,9 +1074,7 @@ static int lxcContainerMountFSDevPTS(virDomainDefPtr def,
 
     VIR_DEBUG("Mount /dev/pts stateDir=%s", stateDir);
 
-    if (virAsprintf(&path, "/.oldroot/%s/%s.devpts",
-                    stateDir, def->name) < 0)
-        return ret;
+    path = g_strdup_printf("/.oldroot/%s/%s.devpts", stateDir, def->name);
 
     if (virFileMakePath("/dev/pts") < 0) {
         virReportSystemError(errno, "%s",
@@ -1137,8 +1126,7 @@ static int lxcContainerSetupDevices(char **ttyPaths, size_t nttyPaths)
 
     for (i = 0; i < nttyPaths; i++) {
         char *tty;
-        if (virAsprintf(&tty, "/dev/tty%zu", i+1) < 0)
-            return -1;
+        tty = g_strdup_printf("/dev/tty%zu", i + 1);
 
         if (virFileBindMountDevice(ttyPaths[i], tty) < 0) {
             VIR_FREE(tty);
@@ -1164,8 +1152,7 @@ static int lxcContainerMountFSBind(virDomainFSDefPtr fs,
 
     VIR_DEBUG("src=%s dst=%s", fs->src->path, fs->dst);
 
-    if (virAsprintf(&src, "%s%s", srcprefix, fs->src->path) < 0)
-        goto cleanup;
+    src = g_strdup_printf("%s%s", srcprefix, fs->src->path);
 
     if (stat(fs->dst, &st) < 0) {
         if (errno != ENOENT) {
@@ -1335,9 +1322,8 @@ static int lxcContainerMountFSBlockAuto(virDomainFSDefPtr fs,
 
     /* First time around we use /etc/filesystems */
  retry:
-    if (virAsprintf(&fslist, "%s%s", srcprefix,
-                    tryProc ? "/proc/filesystems" : "/etc/filesystems") < 0)
-        goto cleanup;
+    fslist = g_strdup_printf("%s%s", srcprefix,
+                             tryProc ? "/proc/filesystems" : "/etc/filesystems");
 
     VIR_DEBUG("Open fslist %s", fslist);
     if (!(fp = fopen(fslist, "r"))) {
@@ -1498,14 +1484,12 @@ static int lxcContainerMountFSBlock(virDomainFSDefPtr fs,
 
     VIR_DEBUG("src=%s dst=%s", fs->src->path, fs->dst);
 
-    if (virAsprintf(&src, "%s%s", srcprefix, fs->src->path) < 0)
-        goto cleanup;
+    src = g_strdup_printf("%s%s", srcprefix, fs->src->path);
 
     ret = lxcContainerMountFSBlockHelper(fs, src, srcprefix, sec_mount_options);
 
     VIR_DEBUG("Done mounting filesystem ret=%d", ret);
 
- cleanup:
     VIR_FREE(src);
     return ret;
 }
@@ -1519,9 +1503,7 @@ static int lxcContainerMountFSTmpfs(virDomainFSDefPtr fs,
 
     VIR_DEBUG("usage=%lld sec=%s", fs->usage, sec_mount_options);
 
-    if (virAsprintf(&data,
-                    "size=%lld%s", fs->usage, sec_mount_options) < 0)
-        goto cleanup;
+    data = g_strdup_printf("size=%lld%s", fs->usage, sec_mount_options);
 
     if (virFileMakePath(fs->dst) < 0) {
         virReportSystemError(errno,
@@ -1664,19 +1646,22 @@ static int lxcContainerUnmountForSharedRoot(const char *stateDir,
 
     /* These filesystems are created by libvirt temporarily, they
      * shouldn't appear in container. */
-    if (virAsprintf(&tmp, "%s/%s.dev", stateDir, domain) < 0 ||
-        lxcContainerUnmountSubtree(tmp, false) < 0)
+    tmp = g_strdup_printf("%s/%s.dev", stateDir, domain);
+
+    if (lxcContainerUnmountSubtree(tmp, false) < 0)
         goto cleanup;
 
     VIR_FREE(tmp);
-    if (virAsprintf(&tmp, "%s/%s.devpts", stateDir, domain) < 0 ||
-        lxcContainerUnmountSubtree(tmp, false) < 0)
+    tmp = g_strdup_printf("%s/%s.devpts", stateDir, domain);
+
+    if (lxcContainerUnmountSubtree(tmp, false) < 0)
         goto cleanup;
 
 #if WITH_FUSE
     VIR_FREE(tmp);
-    if (virAsprintf(&tmp, "%s/%s.fuse", stateDir, domain) < 0 ||
-        lxcContainerUnmountSubtree(tmp, false) < 0)
+    tmp = g_strdup_printf("%s/%s.fuse", stateDir, domain);
+
+    if (lxcContainerUnmountSubtree(tmp, false) < 0)
         goto cleanup;
 #endif
 
@@ -2238,9 +2223,8 @@ static int lxcContainerChild(void *data)
         const char *tty = argv->ttyPaths[0];
         if (STRPREFIX(tty, "/dev/pts/"))
             tty += strlen("/dev/pts/");
-        if (virAsprintf(&ttyPath, "%s/%s.devpts/%s",
-                        LXC_STATE_DIR, vmDef->name, tty) < 0)
-            goto cleanup;
+        ttyPath = g_strdup_printf("%s/%s.devpts/%s", LXC_STATE_DIR, vmDef->name,
+                                  tty);
     } else {
         virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                        _("At least one tty is required"));
index 5ae76082462f04cdf8ab37c4a72af6726a3ee5dd..3235a726ae69d187734a39b8360628c8203fa36b 100644 (file)
@@ -565,10 +565,11 @@ static int virLXCControllerAppendNBDPids(virLXCControllerPtr ctrl,
     size_t loops = 0;
     pid_t pid;
 
-    if (!STRPREFIX(dev, "/dev/") ||
-        virAsprintf(&pidpath, "/sys/devices/virtual/block/%s/pid", dev + 5) < 0)
+    if (!STRPREFIX(dev, "/dev/"))
         goto cleanup;
 
+    pidpath = g_strdup_printf("/sys/devices/virtual/block/%s/pid", dev + 5);
+
     /* Wait for the pid file to appear */
     while (!virFileExists(pidpath)) {
         /* wait for 100ms before checking again, but don't do it for ever */
@@ -945,9 +946,7 @@ static int virLXCControllerSetupServer(virLXCControllerPtr ctrl)
     virNetServerServicePtr svc = NULL;
     char *sockpath;
 
-    if (virAsprintf(&sockpath, "%s/%s.sock",
-                    LXC_STATE_DIR, ctrl->name) < 0)
-        return -1;
+    sockpath = g_strdup_printf("%s/%s.sock", LXC_STATE_DIR, ctrl->name);
 
     if (!(srv = virNetServerNew("LXC", 1,
                                 0, 0, 0, 1,
@@ -1432,16 +1431,14 @@ static int virLXCControllerSetupUserns(virLXCControllerPtr ctrl)
     }
 
     VIR_DEBUG("Setting up userns maps");
-    if (virAsprintf(&uid_map, "/proc/%d/uid_map", ctrl->initpid) < 0)
-        goto cleanup;
+    uid_map = g_strdup_printf("/proc/%d/uid_map", ctrl->initpid);
 
     if (virLXCControllerSetupUsernsMap(ctrl->def->idmap.uidmap,
                                        ctrl->def->idmap.nuidmap,
                                        uid_map) < 0)
         goto cleanup;
 
-    if (virAsprintf(&gid_map, "/proc/%d/gid_map", ctrl->initpid) < 0)
-        goto cleanup;
+    gid_map = g_strdup_printf("/proc/%d/gid_map", ctrl->initpid);
 
     if (virLXCControllerSetupUsernsMap(ctrl->def->idmap.gidmap,
                                        ctrl->def->idmap.ngidmap,
@@ -1467,18 +1464,14 @@ static int virLXCControllerSetupDev(virLXCControllerPtr ctrl)
     mount_options = virSecurityManagerGetMountOptions(ctrl->securityManager,
                                                       ctrl->def);
 
-    if (virAsprintf(&dev, "/%s/%s.dev",
-                    LXC_STATE_DIR, ctrl->def->name) < 0)
-        goto cleanup;
+    dev = g_strdup_printf("/%s/%s.dev", LXC_STATE_DIR, ctrl->def->name);
 
     /*
      * tmpfs is limited to 64kb, since we only have device nodes in there
      * and don't want to DOS the entire OS RAM usage
      */
 
-    if (virAsprintf(&opts,
-                    "mode=755,size=65536%s", mount_options) < 0)
-        goto cleanup;
+    opts = g_strdup_printf("mode=755,size=65536%s", mount_options);
 
     if (virFileSetupDev(dev, opts) < 0)
         goto cleanup;
@@ -1518,9 +1511,8 @@ static int virLXCControllerPopulateDevices(virLXCControllerPtr ctrl)
 
     /* Populate /dev/ with a few important bits */
     for (i = 0; i < G_N_ELEMENTS(devs); i++) {
-        if (virAsprintf(&path, "/%s/%s.dev/%s",
-                        LXC_STATE_DIR, ctrl->def->name, devs[i].path) < 0)
-            goto cleanup;
+        path = g_strdup_printf("/%s/%s.dev/%s", LXC_STATE_DIR, ctrl->def->name,
+                               devs[i].path);
 
         dev_t dev = makedev(devs[i].maj, devs[i].min);
         if (mknod(path, S_IFCHR, dev) < 0 ||
@@ -1558,19 +1550,13 @@ virLXCControllerSetupHostdevSubsysUSB(virDomainDefPtr vmDef,
     mode_t mode;
     virDomainHostdevSubsysUSBPtr usbsrc = &def->source.subsys.u.usb;
 
-    if (virAsprintf(&src, USB_DEVFS "/%03d/%03d",
-                    usbsrc->bus, usbsrc->device) < 0)
-        goto cleanup;
+    src = g_strdup_printf(USB_DEVFS "/%03d/%03d", usbsrc->bus, usbsrc->device);
 
-    if (virAsprintf(&vroot, "/%s/%s.dev/bus/usb/",
-                    LXC_STATE_DIR, vmDef->name) < 0)
-        goto cleanup;
+    vroot = g_strdup_printf("/%s/%s.dev/bus/usb/", LXC_STATE_DIR, vmDef->name);
 
-    if (virAsprintf(&dstdir, "%s/%03d/", vroot, usbsrc->bus) < 0)
-        goto cleanup;
+    dstdir = g_strdup_printf("%s/%03d/", vroot, usbsrc->bus);
 
-    if (virAsprintf(&dstfile, "%s/%03d", dstdir, usbsrc->device) < 0)
-        goto cleanup;
+    dstfile = g_strdup_printf("%s/%03d", dstdir, usbsrc->device);
 
     if (stat(src, &sb) < 0) {
         virReportSystemError(errno,
@@ -1644,10 +1630,8 @@ virLXCControllerSetupHostdevCapsStorage(virDomainDefPtr vmDef,
     while (*(path + len) == '/')
         len++;
 
-    if (virAsprintf(&dst, "/%s/%s.dev/%s",
-                    LXC_STATE_DIR, vmDef->name,
-                    strchr(path + len, '/')) < 0)
-        goto cleanup;
+    dst = g_strdup_printf("/%s/%s.dev/%s", LXC_STATE_DIR, vmDef->name,
+                          strchr(path + len, '/'));
 
     if (stat(dev, &sb) < 0) {
         virReportSystemError(errno,
@@ -1722,10 +1706,8 @@ virLXCControllerSetupHostdevCapsMisc(virDomainDefPtr vmDef,
     while (*(path + len) == '/')
         len++;
 
-    if (virAsprintf(&dst, "/%s/%s.dev/%s",
-                    LXC_STATE_DIR, vmDef->name,
-                    strchr(path + len, '/')) < 0)
-        goto cleanup;
+    dst = g_strdup_printf("/%s/%s.dev/%s", LXC_STATE_DIR, vmDef->name,
+                          strchr(path + len, '/'));
 
     if (stat(dev, &sb) < 0) {
         virReportSystemError(errno,
@@ -1880,9 +1862,8 @@ static int virLXCControllerSetupDisk(virLXCControllerPtr ctrl,
         goto cleanup;
     }
 
-    if (virAsprintf(&dst, "/%s/%s.dev/%s",
-                    LXC_STATE_DIR, ctrl->def->name, def->dst) < 0)
-        goto cleanup;
+    dst = g_strdup_printf("/%s/%s.dev/%s", LXC_STATE_DIR, ctrl->def->name,
+                          def->dst);
 
     if (stat(def->src->path, &sb) < 0) {
         virReportSystemError(errno,
@@ -2071,12 +2052,8 @@ lxcCreateTty(virLXCControllerPtr ctrl, int *ttymaster,
      * while glibc has to fstat(), fchmod(), and fchown() for older
      * kernels, we can skip those steps.  ptyno shouldn't currently be
      * anything other than 0, but let's play it safe.  */
-    if ((virAsprintf(ttyName, "/dev/pts/%d", ptyno) < 0) ||
-        (virAsprintf(ttyHostPath, "/%s/%s.devpts/%d", LXC_STATE_DIR,
-                     ctrl->def->name, ptyno) < 0)) {
-        errno = ENOMEM;
-        goto cleanup;
-    }
+    *ttyName = g_strdup_printf("/dev/pts/%d", ptyno);
+    *ttyHostPath = g_strdup_printf("/%s/%s.devpts/%d", LXC_STATE_DIR, ctrl->def->name, ptyno);
 
     ret = 0;
 
@@ -2132,11 +2109,8 @@ virLXCControllerSetupDevPTS(virLXCControllerPtr ctrl)
     mount_options = virSecurityManagerGetMountOptions(ctrl->securityManager,
                                                       ctrl->def);
 
-    if (virAsprintf(&devpts, "%s/%s.devpts",
-                    LXC_STATE_DIR, ctrl->def->name) < 0 ||
-        virAsprintf(&ctrl->devptmx, "%s/%s.devpts/ptmx",
-                    LXC_STATE_DIR, ctrl->def->name) < 0)
-        goto cleanup;
+    devpts = g_strdup_printf("%s/%s.devpts", LXC_STATE_DIR, ctrl->def->name);
+    ctrl->devptmx = g_strdup_printf("%s/%s.devpts/ptmx", LXC_STATE_DIR, ctrl->def->name);
 
     if (virFileMakePath(devpts) < 0) {
         virReportSystemError(errno,
@@ -2152,9 +2126,8 @@ virLXCControllerSetupDevPTS(virLXCControllerPtr ctrl)
 
     /* XXX should we support gid=X for X!=5 for distros which use
      * a different gid for tty?  */
-    if (virAsprintf(&opts, "newinstance,ptmxmode=0666,mode=0620,gid=%u%s",
-                    ptsgid, NULLSTR_EMPTY(mount_options)) < 0)
-        goto cleanup;
+    opts = g_strdup_printf("newinstance,ptmxmode=0666,mode=0620,gid=%u%s", ptsgid,
+                           NULLSTR_EMPTY(mount_options));
 
     VIR_DEBUG("Mount devpts on %s type=tmpfs flags=0x%x, opts=%s",
               devpts, MS_NOSUID, opts);
index bc677f9958072da6f5ea4a6a14b46c64a32d505d..ca4ddfdd96112bcb4c05701a293153633b49315d 100644 (file)
@@ -3776,9 +3776,7 @@ lxcDomainAttachDeviceDiskLive(virLXCDriverPtr driver,
     if (VIR_REALLOC_N(vm->def->disks, vm->def->ndisks + 1) < 0)
         goto cleanup;
 
-    if (virAsprintf(&file,
-                    "/dev/%s", def->dst) < 0)
-        goto cleanup;
+    file = g_strdup_printf("/dev/%s", def->dst);
 
     if (lxcDomainAttachDeviceMknod(driver,
                                    0700 | S_IFBLK,
@@ -3963,9 +3961,7 @@ lxcDomainAttachDeviceHostdevSubsysUSBLive(virLXCDriverPtr driver,
     }
 
     usbsrc = &def->source.subsys.u.usb;
-    if (virAsprintf(&src, "/dev/bus/usb/%03d/%03d",
-                    usbsrc->bus, usbsrc->device) < 0)
-        goto cleanup;
+    src = g_strdup_printf("/dev/bus/usb/%03d/%03d", usbsrc->bus, usbsrc->device);
 
     if (!(usb = virUSBDeviceNew(usbsrc->bus, usbsrc->device, NULL)))
         goto cleanup;
@@ -4301,8 +4297,7 @@ lxcDomainDetachDeviceDiskLive(virDomainObjPtr vm,
     def = vm->def->disks[idx];
     src = virDomainDiskGetSource(def);
 
-    if (virAsprintf(&dst, "/dev/%s", def->dst) < 0)
-        goto cleanup;
+    dst = g_strdup_printf("/dev/%s", def->dst);
 
     if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_DEVICES)) {
         virReportError(VIR_ERR_OPERATION_INVALID, "%s",
@@ -4440,9 +4435,7 @@ lxcDomainDetachDeviceHostdevUSBLive(virLXCDriverPtr driver,
     }
 
     usbsrc = &def->source.subsys.u.usb;
-    if (virAsprintf(&dst, "/dev/bus/usb/%03d/%03d",
-                    usbsrc->bus, usbsrc->device) < 0)
-        goto cleanup;
+    dst = g_strdup_printf("/dev/bus/usb/%03d/%03d", usbsrc->bus, usbsrc->device);
 
     if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_DEVICES)) {
         virReportError(VIR_ERR_OPERATION_INVALID, "%s",
index 07cc620fabd473418517fbf98e493080d6520c6f..44f240a0b5d8afbeae42f4fcb2c5cd75922b4691 100644 (file)
@@ -47,8 +47,7 @@ static int lxcProcGetattr(const char *path, struct stat *stbuf)
     virDomainDefPtr def = (virDomainDefPtr)context->private_data;
 
     memset(stbuf, 0, sizeof(struct stat));
-    if (virAsprintf(&mempath, "/proc/%s", path) < 0)
-        return -errno;
+    mempath = g_strdup_printf("/proc/%s", path);
 
     res = 0;
 
@@ -247,8 +246,7 @@ static int lxcProcRead(const char *path G_GNUC_UNUSED,
     struct fuse_context *context = NULL;
     virDomainDefPtr def = NULL;
 
-    if (virAsprintf(&hostpath, "/proc/%s", path) < 0)
-        return -errno;
+    hostpath = g_strdup_printf("/proc/%s", path);
 
     context = fuse_get_context();
     def = (virDomainDefPtr)context->private_data;
@@ -303,9 +301,7 @@ int lxcSetupFuse(virLXCFusePtr *f, virDomainDefPtr def)
     if (virMutexInit(&fuse->lock) < 0)
         goto cleanup2;
 
-    if (virAsprintf(&fuse->mountpoint, "%s/%s.fuse/", LXC_STATE_DIR,
-                    def->name) < 0)
-        goto cleanup1;
+    fuse->mountpoint = g_strdup_printf("%s/%s.fuse/", LXC_STATE_DIR, def->name);
 
     if (virFileMakePath(fuse->mountpoint) < 0) {
         virReportSystemError(errno, _("Cannot create %s"),
index 028e401236de064baadd1a9f9aee15222de527c3..479125374b0111e699da2c56d5aad640078c2df3 100644 (file)
@@ -151,9 +151,7 @@ virLXCMonitorPtr virLXCMonitorNew(virDomainObjPtr vm,
     if (!(mon = virObjectLockableNew(virLXCMonitorClass)))
         return NULL;
 
-    if (virAsprintf(&sockpath, "%s/%s.sock",
-                    socketdir, vm->def->name) < 0)
-        goto error;
+    sockpath = g_strdup_printf("%s/%s.sock", socketdir, vm->def->name);
 
     if (!(mon->client = virNetClientNewUNIX(sockpath, false, NULL)))
         goto error;
index 5018cf115b1fe4771be1178bb5c0cc2de812802d..7e696fd2f02adfe05baa71efb43c52d610411ba6 100644 (file)
@@ -265,8 +265,7 @@ lxcAddFstabLine(virDomainDefPtr def, lxcFstabPtr fstab)
         return -1;
 
     if (fstab->dst[0] != '/') {
-        if (virAsprintf(&dst, "/%s", fstab->dst) < 0)
-            goto cleanup;
+        dst = g_strdup_printf("/%s", fstab->dst);
     } else {
         dst = g_strdup(fstab->dst);
     }
@@ -492,9 +491,9 @@ lxcAddNetworkDefinition(lxcNetworkParseData *data)
          * on the host */
         if (isVlan && data->vlanid) {
             VIR_FREE(hostdev->source.caps.u.net.ifname);
-            if (virAsprintf(&hostdev->source.caps.u.net.ifname,
-                            "%s.%s", data->link, data->vlanid) < 0)
-                goto error;
+            hostdev->source.caps.u.net.ifname = g_strdup_printf("%s.%s",
+                                                                data->link,
+                                                                data->vlanid);
         }
 
         hostdev->source.caps.u.net.ip.ips = data->ips;
@@ -947,8 +946,7 @@ lxcBlkioDeviceWalkCallback(const char *name, virConfValuePtr value, void *data)
         goto cleanup;
     }
 
-    if (virAsprintf(&path, "/dev/block/%s", parts[0]) < 0)
-        goto cleanup;
+    path = g_strdup_printf("/dev/block/%s", parts[0]);
 
     /* Do we already have a device definition for this path?
      * Get that device or create a new one */
index 450053d163b8a5f14a34747ec106acf4719078f0..b59e66c29ad819d4494a0547609249e6069549b4 100644 (file)
@@ -138,8 +138,7 @@ lxcProcessRemoveDomainStatus(virLXCDriverConfigPtr cfg,
     char ebuf[1024];
     char *file = NULL;
 
-    if (virAsprintf(&file, "%s/%s.xml", cfg->stateDir, vm->def->name) < 0)
-        return;
+    file = g_strdup_printf("%s/%s.xml", cfg->stateDir, vm->def->name);
 
     if (unlink(file) < 0 && errno != ENOENT && errno != ENOTDIR)
         VIR_WARN("Failed to remove domain XML for %s: %s",
@@ -419,10 +418,8 @@ static int virLXCProcessSetupNamespaceName(virConnectPtr conn, int ns_type, cons
         goto cleanup;
     }
 
-    if (virAsprintf(&path, "/proc/%lld/ns/%s",
-                    (long long int)priv->initpid,
-                    nsInfoLocal[ns_type]) < 0)
-        goto cleanup;
+    path = g_strdup_printf("/proc/%lld/ns/%s", (long long int)priv->initpid,
+                           nsInfoLocal[ns_type]);
 
     if ((fd = open(path, O_RDONLY)) < 0) {
         virReportSystemError(errno,
@@ -443,10 +440,7 @@ static int virLXCProcessSetupNamespacePID(int ns_type, const char *name)
     int fd;
     char *path;
 
-    if (virAsprintf(&path, "/proc/%s/ns/%s",
-                    name,
-                    nsInfoLocal[ns_type]) < 0)
-        return -1;
+    path = g_strdup_printf("/proc/%s/ns/%s", name, nsInfoLocal[ns_type]);
     fd = open(path, O_RDONLY);
     VIR_FREE(path);
     if (fd < 0) {
@@ -470,8 +464,7 @@ static int virLXCProcessSetupNamespaceNet(int ns_type, const char *name)
         return -1;
     }
 
-    if (virAsprintf(&path, "%s/netns/%s", RUNSTATEDIR, name) < 0)
-        return  -1;
+    path = g_strdup_printf("%s/netns/%s", RUNSTATEDIR, name);
     fd = open(path, O_RDONLY);
     VIR_FREE(path);
     if (fd < 0) {
@@ -632,8 +625,7 @@ static int virLXCProcessSetupInterfaces(virConnectPtr conn,
 
         /* Make sure all net definitions will have a name in the container */
         if (!net->ifname_guest) {
-            if (virAsprintf(&net->ifname_guest, "eth%zu", niface) < 0)
-                goto cleanup;
+            net->ifname_guest = g_strdup_printf("eth%zu", niface);
             niface++;
         }
     }
@@ -757,9 +749,7 @@ virLXCProcessGetNsInode(pid_t pid,
     struct stat sb;
     int ret = -1;
 
-    if (virAsprintf(&path, "/proc/%lld/ns/%s",
-                    (long long)pid, nsname) < 0)
-        goto cleanup;
+    path = g_strdup_printf("/proc/%lld/ns/%s", (long long)pid, nsname);
 
     if (stat(path, &sb) < 0) {
         virReportSystemError(errno,
@@ -984,9 +974,7 @@ virLXCProcessBuildControllerCmd(virLXCDriverPtr driver,
     for (i = 0; i < VIR_LXC_DOMAIN_NAMESPACE_LAST; i++) {
         if (nsInheritFDs[i] > 0) {
             char *tmp = NULL;
-            if (virAsprintf(&tmp, "--share-%s",
-                            nsInfoLocal[i]) < 0)
-                goto error;
+            tmp = g_strdup_printf("--share-%s", nsInfoLocal[i]);
             virCommandAddArg(cmd, tmp);
             virCommandAddArgFormat(cmd, "%d", nsInheritFDs[i]);
             virCommandPassFD(cmd, nsInheritFDs[i], 0);
@@ -1269,9 +1257,7 @@ int virLXCProcessStart(virConnectPtr conn,
         vm->def->resource = res;
     }
 
-    if (virAsprintf(&logfile, "%s/%s.log",
-                    cfg->logDir, vm->def->name) < 0)
-        goto cleanup;
+    logfile = g_strdup_printf("%s/%s.log", cfg->logDir, vm->def->name);
 
     if (!(pidfile = virPidFileBuildPath(cfg->stateDir, vm->def->name)))
         goto cleanup;
@@ -1358,8 +1344,7 @@ int virLXCProcessStart(virConnectPtr conn,
         vm->def->consoles[i]->source->data.file.path = ttyPath;
 
         VIR_FREE(vm->def->consoles[i]->info.alias);
-        if (virAsprintf(&vm->def->consoles[i]->info.alias, "console%zu", i) < 0)
-            goto cleanup;
+        vm->def->consoles[i]->info.alias = g_strdup_printf("console%zu", i);
     }
 
     VIR_DEBUG("Setting up Interfaces");