C++ STRNEQ函数代码示例

static int
disk_create_qcow2 (guestfs_h *g, const char *orig_filename, int64_t size,
                   const char *backingfile,
                   const struct guestfs_disk_create_argv *optargs)
{
  CLEANUP_FREE char *filename = NULL;
  const char *backingformat = NULL;
  const char *preallocation = NULL;
  const char *compat = NULL;
  int clustersize = -1;
  CLEANUP_FREE_STRINGSBUF DECLARE_STRINGSBUF (optionsv);
  CLEANUP_CMD_CLOSE struct command *cmd = guestfs_int_new_command (g);
  int r;

  /* If the filename is something like "file:foo" then qemu-img will
   * try to interpret that as "foo" in the file:/// protocol.  To
   * avoid that, if the path is relative prefix it with "./" since
   * qemu-img won't try to interpret such a path.
   */
  if (orig_filename[0] != '/')
    filename = safe_asprintf (g, "./%s", orig_filename);
  else
    filename = safe_strdup (g, orig_filename);

  if (optargs->bitmask & GUESTFS_DISK_CREATE_BACKINGFORMAT_BITMASK) {
    backingformat = optargs->backingformat;
    /* Conservative whitelist.  This can be extended with other
     * valid formats as required.
     */
    if (STRNEQ (backingformat, "raw") &&
        STRNEQ (backingformat, "qcow2") &&
        STRNEQ (backingformat, "vmdk")) {
      error (g, _("invalid value for backingformat parameter '%s'"),
             backingformat);
      return -1;
    }
  }
  if (optargs->bitmask & GUESTFS_DISK_CREATE_PREALLOCATION_BITMASK) {
    if (STREQ (optargs->preallocation, "off") ||
        STREQ (optargs->preallocation, "sparse"))
      preallocation = "off";
    else if (STREQ (optargs->preallocation, "metadata"))
      preallocation = "metadata";
    else if (STREQ (optargs->preallocation, "full"))
      /* Ugh: https://lists.gnu.org/archive/html/qemu-devel/2014-08/msg03863.html */
      preallocation = "falloc";
    else {
      error (g, _("invalid value for preallocation parameter '%s'"),
             preallocation);
      return -1;
    }
  }
  if (optargs->bitmask & GUESTFS_DISK_CREATE_COMPAT_BITMASK) {
    compat = optargs->compat;
    if (STRNEQ (compat, "0.10") && STRNEQ (compat, "1.1")) {
      error (g, _("invalid value for compat parameter '%s'"), compat);
      return -1;
    }
  }
  if (optargs->bitmask & GUESTFS_DISK_CREATE_CLUSTERSIZE_BITMASK) {
    clustersize = optargs->clustersize;
    if (clustersize < 512 || clustersize > 2097152 ||
        !is_power_of_2 ((unsigned) clustersize)) {
      error (g, _("invalid value for clustersize parameter '%d'"),
             clustersize);
      return -1;
    }
  }

  /* Assemble the qemu-img command line. */
  guestfs_int_cmd_add_arg (cmd, "qemu-img");
  guestfs_int_cmd_add_arg (cmd, "create");
  guestfs_int_cmd_add_arg (cmd, "-f");
  guestfs_int_cmd_add_arg (cmd, "qcow2");

  /* -o parameter. */
  if (backingfile) {
    CLEANUP_FREE char *p = qemu_escape_param (g, backingfile);
    guestfs_int_add_sprintf (g, &optionsv, "backing_file=%s", p);
  }
  if (backingformat)
    guestfs_int_add_sprintf (g, &optionsv, "backing_fmt=%s", backingformat);
  if (preallocation)
    guestfs_int_add_sprintf (g, &optionsv, "preallocation=%s", preallocation);
  if (compat)
    guestfs_int_add_sprintf (g, &optionsv, "compat=%s", compat);
  if (clustersize >= 0)
    guestfs_int_add_sprintf (g, &optionsv, "cluster_size=%d", clustersize);
  guestfs_int_end_stringsbuf (g, &optionsv);

  if (optionsv.size > 1) {
    CLEANUP_FREE char *options = guestfs_int_join_strings (",", optionsv.argv);
    guestfs_int_cmd_add_arg (cmd, "-o");
    guestfs_int_cmd_add_arg (cmd, options);
  }

  /* Complete the command line. */
  guestfs_int_cmd_add_arg (cmd, filename);
  if (size >= 0)
    guestfs_int_cmd_add_arg_format (cmd, "%" PRIi64, size);
//.........这里部分代码省略.........

static int testCompareXMLToArgvFiles(const char *xml,
                                     const char *cmd,
                                     unsigned long long extraFlags,
                                     const char *migrateFrom) {
    char argvData[MAX_FILE];
    char *expectargv = &(argvData[0]);
    char *actualargv = NULL;
    const char **argv = NULL;
    const char **qenv = NULL;
    const char **tmp = NULL;
    int ret = -1, len;
    unsigned long long flags;
    virDomainDefPtr vmdef = NULL;
    virDomainChrDef monitor_chr;
    virConnectPtr conn;

    if (!(conn = virGetConnect()))
        goto fail;

    if (virtTestLoadFile(cmd, &expectargv, MAX_FILE) < 0)
        goto fail;

    if (!(vmdef = virDomainDefParseFile(driver.caps, xml,
                                        VIR_DOMAIN_XML_INACTIVE)))
        goto fail;

    if (extraFlags & QEMUD_CMD_FLAG_DOMID)
        vmdef->id = 6;
    else
        vmdef->id = -1;

    memset(&monitor_chr, 0, sizeof(monitor_chr));
    monitor_chr.type = VIR_DOMAIN_CHR_TYPE_UNIX;
    monitor_chr.data.nix.path = (char *)"/tmp/test-monitor";
    monitor_chr.data.nix.listen = 1;
    if (!(monitor_chr.info.alias = strdup("monitor")))
        goto fail;

    flags = QEMUD_CMD_FLAG_VNC_COLON |
        QEMUD_CMD_FLAG_NO_REBOOT |
        extraFlags;

    if (qemudCanonicalizeMachine(&driver, vmdef) < 0)
        goto fail;

    if (flags & QEMUD_CMD_FLAG_DEVICE) {
        qemuDomainPCIAddressSetPtr pciaddrs;
        if (!(pciaddrs = qemuDomainPCIAddressSetCreate(vmdef)))
            goto fail;

        if (qemuAssignDevicePCISlots(vmdef, pciaddrs) < 0)
            goto fail;

        qemuDomainPCIAddressSetFree(pciaddrs);
    }


    if (qemudBuildCommandLine(conn, &driver,
                              vmdef, &monitor_chr, 0, flags,
                              &argv, &qenv,
                              NULL, NULL, migrateFrom, NULL) < 0)
        goto fail;

    len = 1; /* for trailing newline */
    tmp = qenv;
    while (*tmp) {
        len += strlen(*tmp) + 1;
        tmp++;
    }

    tmp = argv;
    while (*tmp) {
        len += strlen(*tmp) + 1;
        tmp++;
    }
    if ((actualargv = malloc(sizeof(*actualargv)*len)) == NULL)
        goto fail;
    actualargv[0] = '\0';
    tmp = qenv;
    while (*tmp) {
        if (actualargv[0])
            strcat(actualargv, " ");
        strcat(actualargv, *tmp);
        tmp++;
    }
    tmp = argv;
    while (*tmp) {
        if (actualargv[0])
            strcat(actualargv, " ");
        strcat(actualargv, *tmp);
        tmp++;
    }
    strcat(actualargv, "\n");

    if (STRNEQ(expectargv, actualargv)) {
        virtTestDifference(stderr, expectargv, actualargv);
        goto fail;
    }

    ret = 0;
//.........这里部分代码省略.........

//.........这里部分代码省略.........
                                                                        \
      if ( n > 0 && ! xalloc_oversized (nr_words + n, sizeof (struct word))) { \
        struct word *w;							\
        w = realloc (words, sizeof (struct word) * (nr_words + n));	\
                                                                        \
        if (w == NULL) {						\
          free_words (words, nr_words);					\
          words = NULL;							\
          nr_words = 0;							\
        } else {							\
          words = w;							\
          for (i = 0; i < n; ++i) {					\
            words[nr_words].name = strs[i];				\
            words[nr_words].is_dir = 0;					\
            nr_words++;							\
          }								\
        }								\
      }									\
      free (strs);							\
    }									\
  } while (0)

    /* Is it a device? */
    if (len < 5 || STREQLEN (text, "/dev/", 5)) {
      /* Get a list of everything that can possibly begin with /dev/ */
      strs = guestfs_list_devices (g);
      APPEND_STRS_AND_FREE;

      strs = guestfs_list_partitions (g);
      APPEND_STRS_AND_FREE;

      strs = guestfs_lvs (g);
      APPEND_STRS_AND_FREE;

      strs = guestfs_list_dm_devices (g);
      APPEND_STRS_AND_FREE;

      strs = guestfs_list_md_devices (g);
      APPEND_STRS_AND_FREE;
    }

    if (len < 1 || text[0] == '/') {
      /* If we've got a partial path already, we need to list everything
       * in that directory, otherwise list everything in /
       */
      char *p, *dir;
      struct guestfs_dirent_list *dirents;

      p = strrchr (text, '/');
      dir = p && p > text ? strndup (text, p - text) : strdup ("/");
      if (dir) {
        dirents = guestfs_readdir (g, dir);

        /* Prepend directory to names before adding them to the list
         * of words.
         */
        if (dirents) {
          size_t i;

          for (i = 0; i < dirents->len; ++i) {
            int err;

            if (STRNEQ (dirents->val[i].name, ".") &&
                STRNEQ (dirents->val[i].name, "..")) {
              if (STREQ (dir, "/"))
                err = asprintf (&p, "/%s", dirents->val[i].name);
              else
                err = asprintf (&p, "%s/%s", dir, dirents->val[i].name);
              if (err >= 0) {
                if (!xalloc_oversized (nr_words+1, sizeof (struct word))) {
                  struct word *w;

                  w = realloc (words, sizeof (struct word) * (nr_words+1));
                  if (w == NULL) {
                    free_words (words, nr_words);
                    words = NULL;
                    nr_words = 0;
                  }
                  else {
                    words = w;
                    words[nr_words].name = p;
                    words[nr_words].is_dir = dirents->val[i].ftyp == 'd';
                    nr_words++;
                  }
                }
              }
            }
          }

          guestfs_free_dirent_list (dirents);
        }
      }
    }

    /* else ...  In theory we could complete other things here such as VG
     * names.  At the moment we don't do that.
     */

    RESTORE_ERROR_CB
  }

//.........这里部分代码省略.........
    rmdir (tmpdir);
    return NULL;
  }

  r = system (cmd);
  if (r == -1) {
    reply_with_perror ("command failed: %s", cmd);
    rmdir (tmpdir);
    return NULL;
  }
  if (WEXITSTATUS (r) != 0) {
    reply_with_perror ("command failed with return code %d",
                       WEXITSTATUS (r));
    rmdir (tmpdir);
    return NULL;
  }

  /* Construct the expected name of the extracted file. */
  if (asprintf (&fullpath, "%s/%s", tmpdir, filename) == -1) {
    reply_with_perror ("asprintf");
    rmdir (tmpdir);
    return NULL;
  }

  /* See if we got a file. */
  fd = open (fullpath, O_RDONLY|O_CLOEXEC);
  if (fd == -1) {
    reply_with_perror ("open: %s:%s", path, filename);
    rmdir (tmpdir);
    return NULL;
  }

  /* From this point, we know the file exists, so we require full
   * cleanup.
   */
  if (fstat (fd, &statbuf) == -1) {
    reply_with_perror ("fstat: %s:%s", path, filename);
    goto cleanup;
  }

  /* The actual limit on messages is smaller than this.  This
   * check just limits the amount of memory we'll try and allocate
   * here.  If the message is larger than the real limit, that will
   * be caught later when we try to serialize the message.
   */
  if (statbuf.st_size >= GUESTFS_MESSAGE_MAX) {
    reply_with_error ("%s:%s: file is too large for the protocol",
                      path, filename);
    goto cleanup;
  }

  ret = malloc (statbuf.st_size);
  if (ret == NULL) {
    reply_with_perror ("malloc");
    goto cleanup;
  }

  if (xread (fd, ret, statbuf.st_size) == -1) {
    reply_with_perror ("read: %s:%s", path, filename);
    free (ret);
    ret = NULL;
    goto cleanup;
  }

  if (close (fd) == -1) {
    reply_with_perror ("close: %s:%s", path, filename);
    free (ret);
    ret = NULL;
    goto cleanup;
  }
  fd = -1;

  /* Mustn't touch *size_r until we are sure that we won't return any
   * error (RHBZ#589039).
   */
  *size_r = statbuf.st_size;

 cleanup:
  if (fd >= 0)
    close (fd);

  /* Remove the file. */
  if (unlink (fullpath) == -1) {
    fprintf (stderr, "unlink: %s: %m\n", fullpath);
    /* non-fatal */
  }

  /* Remove the directories up to and including the temp directory. */
  do {
    char *p = strrchr (fullpath, '/');
    if (!p) break;
    *p = '\0';
    if (rmdir (fullpath) == -1) {
      fprintf (stderr, "rmdir: %s: %m\n", fullpath);
      /* non-fatal */
    }
  } while (STRNEQ (fullpath, tmpdir));

  return ret;
}

//.........这里部分代码省略.........
        if (!(emulator = strdup(vmdef->emulator + 1)))
            goto fail;
        free(vmdef->emulator);
        vmdef->emulator = NULL;
        if (virAsprintf(&vmdef->emulator, "%s/qemuxml2argvdata/%s",
                        abs_srcdir, emulator) < 0)
            goto fail;
    }

    if (qemuCapsGet(extraFlags, QEMU_CAPS_DOMID))
        vmdef->id = 6;
    else
        vmdef->id = -1;

    memset(&monitor_chr, 0, sizeof(monitor_chr));
    monitor_chr.type = VIR_DOMAIN_CHR_TYPE_UNIX;
    monitor_chr.data.nix.path = (char *)"/tmp/test-monitor";
    monitor_chr.data.nix.listen = true;

    qemuCapsSetList(extraFlags,
                    QEMU_CAPS_VNC_COLON,
                    QEMU_CAPS_NO_REBOOT,
                    QEMU_CAPS_LAST);

    if (qemudCanonicalizeMachine(&driver, vmdef) < 0)
        goto fail;

    if (qemuCapsGet(extraFlags, QEMU_CAPS_DEVICE)) {
        qemuDomainPCIAddressSetPtr pciaddrs;
        if (!(pciaddrs = qemuDomainPCIAddressSetCreate(vmdef)))
            goto fail;

        if (qemuAssignDevicePCISlots(vmdef, pciaddrs) < 0)
            goto fail;

        qemuDomainPCIAddressSetFree(pciaddrs);
    }


    free(virtTestLogContentAndReset());
    virResetLastError();

    /* We do not call qemuCapsExtractVersionInfo() before calling
     * qemuBuildCommandLine(), so we should set QEMU_CAPS_PCI_MULTIBUS for
     * x86_64 and i686 architectures here.
     */
    if (STREQLEN(vmdef->os.arch, "x86_64", 6) ||
            STREQLEN(vmdef->os.arch, "i686", 4)) {
        qemuCapsSet(extraFlags, QEMU_CAPS_PCI_MULTIBUS);
    }

    if (qemuAssignDeviceAliases(vmdef, extraFlags) < 0)
        goto fail;

    if (!(cmd = qemuBuildCommandLine(conn, &driver,
                                     vmdef, &monitor_chr, json, extraFlags,
                                     migrateFrom, migrateFd, NULL,
                                     VIR_NETDEV_VPORT_PROFILE_OP_NO_OP)))
        goto fail;

    if (!!virGetLastError() != expectError) {
        if (virTestGetDebug() && (log = virtTestLogContentAndReset()))
            fprintf(stderr, "\n%s", log);
        goto fail;
    }

    if (expectError) {
        /* need to suppress the errors */
        virResetLastError();
    }

    if (!(actualargv = virCommandToString(cmd)))
        goto fail;

    if (emulator) {
        /* Skip the abs_srcdir portion of replacement emulator.  */
        char *start_skip = strstr(actualargv, abs_srcdir);
        char *end_skip = strstr(actualargv, emulator);
        if (!start_skip || !end_skip)
            goto fail;
        memmove(start_skip, end_skip, strlen(end_skip) + 1);
    }

    if (STRNEQ(expectargv, actualargv)) {
        virtTestDifference(stderr, expectargv, actualargv);
        goto fail;
    }

    ret = 0;

fail:
    free(log);
    free(emulator);
    free(expectargv);
    free(actualargv);
    virCommandFree(cmd);
    virDomainDefFree(vmdef);
    virUnrefConnect(conn);
    return ret;
}

static int
testJSONAddRemove(const void *data)
{
    const struct testInfo *info = data;
    virJSONValuePtr json;
    virJSONValuePtr name = NULL;
    char *result = NULL;
    int ret = -1;

    json = virJSONValueFromString(info->doc);
    if (!json) {
        if (virTestGetVerbose())
            fprintf(stderr, "Fail to parse %s\n", info->doc);
        ret = -1;
        goto cleanup;
    }

    switch (virJSONValueObjectRemoveKey(json, "name", &name)) {
    case 1:
        if (!info->pass) {
            if (virTestGetVerbose())
                fprintf(stderr, "should not remove from non-object %s\n",
                        info->doc);
            goto cleanup;
        }
        break;
    case -1:
        if (!info->pass)
            ret = 0;
        else if (virTestGetVerbose())
            fprintf(stderr, "Fail to recognize non-object %s\n", info->doc);
        goto cleanup;
    default:
        if (virTestGetVerbose())
            fprintf(stderr, "unexpected result when removing from %s\n",
                    info->doc);
        goto cleanup;
    }
    if (STRNEQ_NULLABLE(virJSONValueGetString(name), "sample")) {
        if (virTestGetVerbose())
            fprintf(stderr, "unexpected value after removing name: %s\n",
                    NULLSTR(virJSONValueGetString(name)));
        goto cleanup;
    }
    if (virJSONValueObjectRemoveKey(json, "name", NULL)) {
        if (virTestGetVerbose())
            fprintf(stderr, "%s",
                    "unexpected success when removing missing key\n");
        goto cleanup;
    }
    if (virJSONValueObjectAppendString(json, "newname", "foo") < 0) {
        if (virTestGetVerbose())
            fprintf(stderr, "%s", "unexpected failure adding new key\n");
        goto cleanup;
    }
    if (!(result = virJSONValueToString(json, false))) {
        if (virTestGetVerbose())
            fprintf(stderr, "%s", "failed to stringize result\n");
        goto cleanup;
    }
    if (STRNEQ(info->expect, result)) {
        if (virTestGetVerbose())
            virtTestDifference(stderr, info->expect, result);
        goto cleanup;
    }
    ret = 0;

cleanup:
    virJSONValueFree(json);
    virJSONValueFree(name);
    VIR_FREE(result);
    return ret;
}

static int
parallelsLoadNetwork(parallelsConnPtr privconn, virJSONValuePtr jobj)
{
    int ret = -1;
    virNetworkObjPtr net = NULL;
    virNetworkDefPtr def;
    const char *tmp;
    /* MD5_DIGEST_SIZE = VIR_UUID_BUFLEN = 16 */
    unsigned char md5[MD5_DIGEST_SIZE];

    if (VIR_ALLOC(def) < 0)
        goto cleanup;

    if (!(tmp = virJSONValueObjectGetString(jobj, "Network ID"))) {
        parallelsParseError();
        goto cleanup;
    }

    if (VIR_STRDUP(def->name, tmp) < 0)
        goto cleanup;

    /* Network names are unique in Parallels Cloud Server, so we can make
     * a UUID from it */
    md5_buffer(tmp, strlen(tmp), md5);
    memcpy(def->uuid, md5, VIR_UUID_BUFLEN);
    def->uuid_specified = 1;

    if (!(tmp = virJSONValueObjectGetString(jobj, "Type"))) {
        parallelsParseError();
        goto cleanup;
    }

    if (STREQ(tmp, PARALLELS_BRIDGED_NETWORK_TYPE)) {
        def->forward.type = VIR_NETWORK_FORWARD_BRIDGE;

        if (parallelsGetBridgedNetInfo(def, jobj) < 0) {

            /* Only mandatory networks are required to be configured completely */
            if (STRNEQ(def->name, PARALLELS_REQUIRED_BRIDGED_NETWORK))
                ret = 0;

            goto cleanup;
        }
    } else if (STREQ(tmp, PARALLELS_HOSTONLY_NETWORK_TYPE)) {
        def->forward.type = VIR_NETWORK_FORWARD_NONE;

        if (parallelsGetHostOnlyNetInfo(def, def->name) < 0) {

            /* Only mandatory networks are required to be configured completely */
            if (STRNEQ(def->name, PARALLELS_REQUIRED_HOSTONLY_NETWORK))
                ret = 0;

            goto cleanup;
        }
    } else {
        parallelsParseError();
        goto cleanup;
    }

    if (!(net = virNetworkAssignDef(privconn->networks, def, 0)))
        goto cleanup;
    def = NULL;
    net->active = 1;
    net->autostart = 1;
    ret = 0;

 cleanup:
    virNetworkObjEndAPI(&net);
    virNetworkDefFree(def);
    return ret;
}

//.........这里部分代码省略.........

    if (virQEMUCapsGet(extraFlags, QEMU_CAPS_DOMID))
        vmdef->id = 6;
    else
        vmdef->id = -1;

    memset(&monitor_chr, 0, sizeof(monitor_chr));
    monitor_chr.type = VIR_DOMAIN_CHR_TYPE_UNIX;
    monitor_chr.data.nix.path = (char *)"/tmp/test-monitor";
    monitor_chr.data.nix.listen = true;

    virQEMUCapsSetList(extraFlags,
                       QEMU_CAPS_VNC_COLON,
                       QEMU_CAPS_NO_REBOOT,
                       QEMU_CAPS_NO_ACPI,
                       QEMU_CAPS_LAST);

    if (STREQ(vmdef->os.machine, "pc") &&
        STREQ(vmdef->emulator, "/usr/bin/qemu-system-x86_64")) {
        VIR_FREE(vmdef->os.machine);
        if (VIR_STRDUP(vmdef->os.machine, "pc-0.11") < 0)
            goto out;
    }

    if (virQEMUCapsGet(extraFlags, QEMU_CAPS_DEVICE)) {
        if (qemuDomainAssignAddresses(vmdef, extraFlags, NULL)) {
            if (flags & FLAG_EXPECT_ERROR)
                goto ok;
            goto out;
        }
    }

    log = virtTestLogContentAndReset();
    VIR_FREE(log);
    virResetLastError();

    if (vmdef->os.arch == VIR_ARCH_X86_64 ||
        vmdef->os.arch == VIR_ARCH_I686) {
        virQEMUCapsSet(extraFlags, QEMU_CAPS_PCI_MULTIBUS);
    }

    if (qemuAssignDeviceAliases(vmdef, extraFlags) < 0)
        goto out;

    if (!(cmd = qemuBuildCommandLine(conn, &driver, vmdef, &monitor_chr,
                                     (flags & FLAG_JSON), extraFlags,
                                     migrateFrom, migrateFd, NULL,
                                     VIR_NETDEV_VPORT_PROFILE_OP_NO_OP,
                                     &testCallbacks))) {
        if (flags & FLAG_EXPECT_FAILURE) {
            ret = 0;
            if (virTestGetDebug() > 1)
                fprintf(stderr, "Got expected error: %s\n",
                        virGetLastErrorMessage());
            virResetLastError();
        }
        goto out;
    } else if (flags & FLAG_EXPECT_FAILURE) {
        if (virTestGetDebug())
            fprintf(stderr, "qemuBuildCommandLine should have failed\n");
        goto out;
    }

    if (!!virGetLastError() != !!(flags & FLAG_EXPECT_ERROR)) {
        if (virTestGetDebug() && (log = virtTestLogContentAndReset()))
            fprintf(stderr, "\n%s", log);
        goto out;
    }

    if (!(actualargv = virCommandToString(cmd)))
        goto out;

    len = virtTestLoadFile(cmdline, &expectargv);
    if (len < 0)
        goto out;
    if (len && expectargv[len - 1] == '\n')
        expectargv[len - 1] = '\0';

    if (STRNEQ(expectargv, actualargv)) {
        virtTestDifference(stderr, expectargv, actualargv);
        goto out;
    }

 ok:
    if (flags & FLAG_EXPECT_ERROR) {
        /* need to suppress the errors */
        virResetLastError();
    }

    ret = 0;

out:
    VIR_FREE(log);
    VIR_FREE(expectargv);
    VIR_FREE(actualargv);
    virCommandFree(cmd);
    virDomainDefFree(vmdef);
    virObjectUnref(conn);
    return ret;
}

static virDrvOpenStatus
vmwareOpen(virConnectPtr conn,
           virConnectAuthPtr auth ATTRIBUTE_UNUSED,
           int flags ATTRIBUTE_UNUSED)
{
    struct vmware_driver *driver;
    char * vmrun = NULL;

    if (conn->uri == NULL) {
        /* @TODO accept */
        return VIR_DRV_OPEN_DECLINED;
    } else {
        if (conn->uri->scheme == NULL ||
            (STRNEQ(conn->uri->scheme, "vmwareplayer") &&
             STRNEQ(conn->uri->scheme, "vmwarews")))
            return VIR_DRV_OPEN_DECLINED;

        /* If server name is given, its for remote driver */
        if (conn->uri->server != NULL)
            return VIR_DRV_OPEN_DECLINED;

        /* If path isn't /session, then they typoed, so tell them correct path */
        if (conn->uri->path == NULL || STRNEQ(conn->uri->path, "/session")) {
            vmwareError(VIR_ERR_INTERNAL_ERROR,
                        _("unexpected VMware URI path '%s', try vmwareplayer:///session or vmwarews:///session"),
                        NULLSTR(conn->uri->path));
            return VIR_DRV_OPEN_ERROR;
        }
    }

    /* We now know the URI is definitely for this driver, so beyond
     * here, don't return DECLINED, always use ERROR */

    vmrun = virFindFileInPath(VMRUN);

    if (vmrun == NULL) {
        vmwareError(VIR_ERR_INTERNAL_ERROR,
                    _("%s utility is missing"), VMRUN);
        return VIR_DRV_OPEN_ERROR;
    } else {
        VIR_FREE(vmrun);
    }

    if (VIR_ALLOC(driver) < 0) {
        virReportOOMError();
        return VIR_DRV_OPEN_ERROR;
    }

    if (virMutexInit(&driver->lock) < 0)
        goto cleanup;

    driver->type = STRNEQ(conn->uri->scheme, "vmwareplayer") ?
      TYPE_WORKSTATION : TYPE_PLAYER;

    if (virDomainObjListInit(&driver->domains) < 0)
        goto cleanup;

    if (!(driver->caps = vmwareCapsInit()))
        goto cleanup;

    driver->caps->privateDataAllocFunc = vmwareDataAllocFunc;
    driver->caps->privateDataFreeFunc = vmwareDataFreeFunc;

    if (vmwareLoadDomains(driver) < 0)
        goto cleanup;

    if (vmwareExtractVersion(driver) < 0)
        goto cleanup;

    conn->privateData = driver;

    return VIR_DRV_OPEN_SUCCESS;

  cleanup:
    vmwareFreeDriver(driver);
    return VIR_DRV_OPEN_ERROR;
};

static int
SELinuxGenSecurityLabel(virSecurityManagerPtr mgr ATTRIBUTE_UNUSED,
                        virDomainDefPtr def)
{
    int rc = -1;
    char *mcs = NULL;
    char *scontext = NULL;
    int c1 = 0;
    int c2 = 0;
    context_t ctx = NULL;
    const char *range;

    if ((def->seclabel.type == VIR_DOMAIN_SECLABEL_DYNAMIC) &&
        !def->seclabel.baselabel &&
        def->seclabel.model) {
        virSecurityReportError(VIR_ERR_INTERNAL_ERROR,
                               "%s", _("security model already defined for VM"));
        return rc;
    }

    if (def->seclabel.type == VIR_DOMAIN_SECLABEL_DYNAMIC &&
        def->seclabel.label) {
        virSecurityReportError(VIR_ERR_INTERNAL_ERROR,
                               "%s", _("security label already defined for VM"));
        return rc;
    }

    if (def->seclabel.imagelabel) {
        virSecurityReportError(VIR_ERR_INTERNAL_ERROR,
                               "%s", _("security image label already defined for VM"));
        return rc;
    }

    if (def->seclabel.model &&
        STRNEQ(def->seclabel.model, SECURITY_SELINUX_NAME)) {
        virSecurityReportError(VIR_ERR_INTERNAL_ERROR,
                               _("security label model %s is not supported with selinux"),
                               def->seclabel.model);
        return rc;
    }

    switch (def->seclabel.type) {
    case VIR_DOMAIN_SECLABEL_STATIC:
        if (!(ctx = context_new(def->seclabel.label)) ) {
            virReportSystemError(errno,
                                 _("unable to allocate socket security context '%s'"),
                                 def->seclabel.label);
            return rc;
        }

        range = context_range_get(ctx);
        if (!range ||
            !(mcs = strdup(range))) {
            virReportOOMError();
            goto cleanup;
        }
        break;

    case VIR_DOMAIN_SECLABEL_DYNAMIC:
        do {
            c1 = virRandomBits(10);
            c2 = virRandomBits(10);

            if ( c1 == c2 ) {
                if (virAsprintf(&mcs, "s0:c%d", c1) < 0) {
                    virReportOOMError();
                    goto cleanup;
                }
            } else {
                if (c1 > c2) {
                    c1 ^= c2;
                    c2 ^= c1;
                    c1 ^= c2;
                }
                if (virAsprintf(&mcs, "s0:c%d,c%d", c1, c2) < 0) {
                    virReportOOMError();
                    goto cleanup;
                }
            }
        } while (mcsAdd(mcs) == -1);

        def->seclabel.label =
            SELinuxGenNewContext(def->seclabel.baselabel ?
                                 def->seclabel.baselabel :
                                 default_domain_context, mcs);
        if (! def->seclabel.label)  {
            virSecurityReportError(VIR_ERR_INTERNAL_ERROR,
                                   _("cannot generate selinux context for %s"), mcs);
            goto cleanup;
        }
        break;

    case VIR_DOMAIN_SECLABEL_NONE:
        /* no op */
        break;

    default:
        virSecurityReportError(VIR_ERR_INTERNAL_ERROR,
                               _("unexpected security label type '%s'"),
                               virDomainSeclabelTypeToString(def->seclabel.type));
//.........这里部分代码省略.........

static bool
testSELinuxCheckCon(context_t con,
                    const char *user,
                    const char *role,
                    const char *type,
                    int sensMin,
                    int sensMax ATTRIBUTE_UNUSED,
                    int catMin,
                    int catMax)
{
    const char *range;
    char *tmp;
    int gotSens;
    int gotCatOne;
    int gotCatTwo;

    if (STRNEQ(context_user_get(con), user)) {
        fprintf(stderr, "Expect user %s got %s\n",
                user, context_user_get(con));
        return false;
    }
    if (STRNEQ(context_role_get(con), role)) {
        fprintf(stderr, "Expect role %s got %s\n",
                role, context_role_get(con));
        return false;
    }
    if (STRNEQ(context_type_get(con), type)) {
        fprintf(stderr, "Expect type %s got %s\n",
                type, context_type_get(con));
        return false;
    }

    range = context_range_get(con);
    if (range[0] != 's') {
        fprintf(stderr, "Malformed range %s, cannot find sensitivity\n",
                range);
        return false;
    }
    if (virStrToLong_i(range + 1, &tmp, 10, &gotSens) < 0 ||
        !tmp) {
        fprintf(stderr, "Malformed range %s, cannot parse sensitivity\n",
                range + 1);
        return false;
    }
    if (*tmp != ':') {
        fprintf(stderr, "Malformed range %s, too many sensitivity values\n",
                tmp);
        return false;
    }
    tmp++;
    if (*tmp != 'c') {
        fprintf(stderr, "Malformed range %s, cannot find first category\n",
                tmp);
        return false;
    }
    tmp++;
    if (virStrToLong_i(tmp, &tmp, 10, &gotCatOne) < 0) {
        fprintf(stderr, "Malformed range %s, cannot parse category one\n",
                tmp);
        return false;
    }
    if (tmp && *tmp == ',')
        tmp++;
    if (tmp && *tmp == 'c') {
        tmp++;
        if (virStrToLong_i(tmp, &tmp, 10, &gotCatTwo) < 0) {
            fprintf(stderr, "Malformed range %s, cannot parse category two\n",
                    tmp);
            return false;
        }
        if (*tmp != '\0') {
            fprintf(stderr, "Malformed range %s, junk after second category\n",
                    tmp);
            return false;
        }
        if (gotCatOne == gotCatTwo) {
            fprintf(stderr, "Saw category pair %d,%d where cats were equal\n",
                    gotCatOne, gotCatTwo);
            return false;
        }
    } else {
        gotCatTwo = gotCatOne;
    }

    if (gotSens != sensMin) {
        fprintf(stderr, "Sensitivity %d is not equal to min %d\n",
                gotSens, sensMin);
        return false;
    }
    if (gotCatOne < catMin ||
        gotCatOne > catMax) {
        fprintf(stderr, "Category one %d is out of range %d-%d\n",
                gotCatTwo, catMin, catMax);
        return false;
    }
    if (gotCatTwo < catMin ||
        gotCatTwo > catMax) {
        fprintf(stderr, "Category two %d is out of range %d-%d\n",
                gotCatTwo, catMin, catMax);
        return false;
//.........这里部分代码省略.........

/* Build supermin appliance from supermin_path to $TMPDIR/.guestfs-$UID.
 *
 * Returns:
 * 0 = built
 * -1 = error (aborts launch)
 */
static int
build_supermin_appliance (guestfs_h *g,
                          const char *supermin_path,
                          uid_t uid,
                          char **kernel, char **initrd,
                          char **appliance)
{
  CLEANUP_FREE char *tmpdir = guestfs_get_cachedir (g);
  struct stat statbuf;
  size_t len;

  /* len must be longer than the length of any pathname we can
   * generate in this function.
   */
  len = strlen (tmpdir) + 128;
  char cachedir[len];
  snprintf (cachedir, len, "%s/.guestfs-%ju", tmpdir, (uintmax_t) uid);
  char lockfile[len];
  snprintf (lockfile, len, "%s/lock", cachedir);
  char appliancedir[len];
  snprintf (appliancedir, len, "%s/appliance.d", cachedir);

  ignore_value (mkdir (cachedir, 0755));
  ignore_value (chmod (cachedir, 0755)); /* RHBZ#921292 */

  /* See if the cache directory exists and passes some simple checks
   * to make sure it has not been tampered with.
   */
  if (lstat (cachedir, &statbuf) == -1)
    return 0;
  if (statbuf.st_uid != uid) {
    error (g, _("security: cached appliance %s is not owned by UID %ju"),
           cachedir, (uintmax_t) uid);
    return -1;
  }
  if (!S_ISDIR (statbuf.st_mode)) {
    error (g, _("security: cached appliance %s is not a directory (mode %o)"),
           cachedir, statbuf.st_mode);
    return -1;
  }
  if ((statbuf.st_mode & 0022) != 0) {
    error (g, _("security: cached appliance %s is writable by group or other (mode %o)"),
           cachedir, statbuf.st_mode);
    return -1;
  }

  (void) utimes (cachedir, NULL);
  if (g->verbose)
    guestfs_int_print_timestamped_message (g, "begin building supermin appliance");

  /* Build the appliance if it needs to be built. */
  if (g->verbose)
    guestfs_int_print_timestamped_message (g, "run supermin");

  if (run_supermin_build (g, lockfile, appliancedir, supermin_path) == -1)
    return -1;

  if (g->verbose)
    guestfs_int_print_timestamped_message (g, "finished building supermin appliance");

  /* Return the appliance filenames. */
  *kernel = safe_malloc (g, len);
  *initrd = safe_malloc (g, len);
  *appliance = safe_malloc (g, len);
  snprintf (*kernel, len, "%s/kernel", appliancedir);
  snprintf (*initrd, len, "%s/initrd", appliancedir);
  snprintf (*appliance, len, "%s/root", appliancedir);

  /* Touch the files so they don't get deleted (as they are in /var/tmp). */
  (void) utimes (*kernel, NULL);
  (void) utimes (*initrd, NULL);

  /* Checking backend != "uml" is a big hack.  UML encodes the mtime
   * of the original backing file (in this case, the appliance) in the
   * COW file, and checks it when adding it to the VM.  If there are
   * multiple threads running and one touches the appliance here, it
   * will disturb the mtime and UML will give an error.
   *
   * We can get rid of this hack as soon as UML fixes the
   * ubdN=cow,original parsing bug, since we won't need to run
   * uml_mkcow separately, so there is no possible race.
   *
   * XXX
   */
  if (STRNEQ (g->backend, "uml"))
    (void) utimes (*appliance, NULL);

  return 0;
}

//.........这里部分代码省略.........
        }
        VIR_FREE(cfg->hugetlbfs);

        if (p->type == VIR_CONF_LIST) {
            size_t len = 0;
            virConfValuePtr pp = p->list;

            /* Calc length and check items */
            while (pp) {
                if (pp->type != VIR_CONF_STRING) {
                    virReportError(VIR_ERR_CONF_SYNTAX, "%s",
                                   _("hugetlbfs_mount must be a list of strings"));
                    goto cleanup;
                }
                len++;
                pp = pp->next;
            }

            if (len && VIR_ALLOC_N(cfg->hugetlbfs, len) < 0)
                goto cleanup;
            cfg->nhugetlbfs = len;

            pp = p->list;
            len = 0;
            while (pp) {
                if (virQEMUDriverConfigHugeTLBFSInit(&cfg->hugetlbfs[len],
                                                     pp->str, !len) < 0)
                    goto cleanup;
                len++;
                pp = pp->next;
            }
        } else {
            CHECK_TYPE("hugetlbfs_mount", VIR_CONF_STRING);
            if (STRNEQ(p->str, "")) {
                if (VIR_ALLOC_N(cfg->hugetlbfs, 1) < 0)
                    goto cleanup;
                cfg->nhugetlbfs = 1;
                if (virQEMUDriverConfigHugeTLBFSInit(&cfg->hugetlbfs[0],
                                                     p->str, true) < 0)
                    goto cleanup;
            }
        }
    }

    GET_VALUE_STR("bridge_helper", cfg->bridgeHelperName);

    GET_VALUE_BOOL("mac_filter", cfg->macFilter);

    GET_VALUE_BOOL("relaxed_acs_check", cfg->relaxedACS);
    GET_VALUE_BOOL("clear_emulator_capabilities", cfg->clearEmulatorCapabilities);
    GET_VALUE_BOOL("allow_disk_format_probing", cfg->allowDiskFormatProbing);
    GET_VALUE_BOOL("set_process_name", cfg->setProcessName);
    GET_VALUE_ULONG("max_processes", cfg->maxProcesses);
    GET_VALUE_ULONG("max_files", cfg->maxFiles);

    GET_VALUE_STR("lock_manager", cfg->lockManagerName);

    GET_VALUE_ULONG("max_queued", cfg->maxQueuedJobs);

    GET_VALUE_LONG("keepalive_interval", cfg->keepAliveInterval);
    GET_VALUE_ULONG("keepalive_count", cfg->keepAliveCount);

    GET_VALUE_LONG("seccomp_sandbox", cfg->seccompSandbox);

    GET_VALUE_STR("migration_host", cfg->migrateHost);
    virStringStripIPv6Brackets(cfg->migrateHost);

//.........这里部分代码省略.........
                             "with mismatched managerids (%d and %d)"),
                           orig->managerID, mods->managerID);
            return -1;
        }
        orig->managerID = mods->managerID;
        orig->managerID_specified = true;
    }

    if (mods->typeID_specified &&
        (otype == VIR_NETDEV_VPORT_PROFILE_8021QBG ||
         otype == VIR_NETDEV_VPORT_PROFILE_NONE)) {
        if (orig->typeID_specified &&
            (orig->typeID != mods->typeID)) {
            virReportError(VIR_ERR_XML_ERROR,
                           _("attempt to merge virtualports "
                             "with mismatched typeids (%d and %d)"),
                           orig->typeID, mods->typeID);
            return -1;
        }
        orig->typeID = mods->typeID;
        orig->typeID_specified = true;
    }

    if (mods->typeIDVersion_specified &&
        (otype == VIR_NETDEV_VPORT_PROFILE_8021QBG ||
         otype == VIR_NETDEV_VPORT_PROFILE_NONE)) {
        if (orig->typeIDVersion_specified &&
            (orig->typeIDVersion != mods->typeIDVersion)) {
            virReportError(VIR_ERR_XML_ERROR,
                           _("attempt to merge virtualports with "
                             "mismatched typeidversions (%d and %d)"),
                           orig->typeIDVersion, mods->typeIDVersion);
            return -1;
        }
        orig->typeIDVersion = mods->typeIDVersion;
        orig->typeIDVersion_specified = true;
    }

    if (mods->instanceID_specified &&
        (otype == VIR_NETDEV_VPORT_PROFILE_8021QBG ||
         otype == VIR_NETDEV_VPORT_PROFILE_NONE)) {
        if (orig->instanceID_specified &&
            memcmp(orig->instanceID, mods->instanceID,
                   sizeof(orig->instanceID))) {
            char origuuid[VIR_UUID_STRING_BUFLEN];
            char modsuuid[VIR_UUID_STRING_BUFLEN];

            virReportError(VIR_ERR_XML_ERROR,
                           _("attempt to merge virtualports with "
                             "mismatched instanceids ('%s' and '%s')"),
                           virUUIDFormat(orig->instanceID, origuuid),
                           virUUIDFormat(mods->instanceID, modsuuid));
            return -1;
        }
        memcpy(orig->instanceID, mods->instanceID, sizeof(orig->instanceID));
        orig->instanceID_specified = true;
    }

    if (mods->interfaceID_specified &&
        (otype == VIR_NETDEV_VPORT_PROFILE_OPENVSWITCH ||
         otype == VIR_NETDEV_VPORT_PROFILE_NONE)) {
        if (orig->interfaceID_specified &&
            memcmp(orig->interfaceID, mods->interfaceID,
                   sizeof(orig->interfaceID))) {
            char origuuid[VIR_UUID_STRING_BUFLEN];
            char modsuuid[VIR_UUID_STRING_BUFLEN];

            virReportError(VIR_ERR_XML_ERROR,
                           _("attempt to merge virtualports with "
                             "mismatched interfaceids ('%s' and '%s')"),
                           virUUIDFormat(orig->interfaceID, origuuid),
                           virUUIDFormat(mods->interfaceID, modsuuid));
            return -1;
        }
        memcpy(orig->interfaceID, mods->interfaceID, sizeof(orig->interfaceID));
        orig->interfaceID_specified = true;
    }

    if (mods->profileID[0] &&
        (otype == VIR_NETDEV_VPORT_PROFILE_OPENVSWITCH ||
         otype == VIR_NETDEV_VPORT_PROFILE_8021QBH ||
         otype == VIR_NETDEV_VPORT_PROFILE_NONE)) {
        if (orig->profileID[0] &&
            STRNEQ(orig->profileID, mods->profileID)) {
            virReportError(VIR_ERR_XML_ERROR,
                           _("attempt to merge virtualports with "
                             "mismatched profileids ('%s' and '%s')"),
                           orig->profileID, mods->profileID);
            return -1;
        }
        if (virStrcpyStatic(orig->profileID, mods->profileID) == NULL) {
            /* this should never happen - it indicates mods->profileID
             * isn't properly null terminated. */
            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                           _("corrupted profileid string"));
            return -1;
        }
    }
    return 0;
}

static char *
getSocketPath(const char *name)
{
    char *rundir = virGetUserRuntimeDirectory();
    char *sock_path = NULL;
    size_t i = 0;
    virURIPtr uri = NULL;

    if (name) {
        if (!(uri = virURIParse(name)))
            goto error;

        if (STRNEQ(uri->scheme, "admin") ||
            uri->server || uri->user || uri->fragment) {
            virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                           _("Invalid connection name '%s'"), name);
            goto error;
        }

        for (i = 0; i < uri->paramsCount; i++) {
            virURIParamPtr param = &uri->params[i];

            if (STREQ(param->name, "socket")) {
                VIR_FREE(sock_path);
                if (VIR_STRDUP(sock_path, param->value) < 0)
                    goto error;
            } else {
                virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                               _("Unknown URI parameter '%s'"), param->name);
                goto error;
            }
        }
    }

    if (!sock_path) {
        if (!uri || !uri->path || STREQ(uri->path, "/system")) {
            if (VIR_STRDUP(sock_path, LIBVIRTD_ADMIN_UNIX_SOCKET) < 0)
                goto error;
        } else if (STREQ_NULLABLE(uri->path, "/session")) {
            if (!rundir)
                goto error;

            if (virAsprintf(&sock_path,
                            "%s%s", rundir, LIBVIRTD_ADMIN_SOCK_NAME) < 0)
                goto error;
        } else {
            virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                           _("Invalid URI path '%s'"), uri->path);
            goto error;
        }
    }

 cleanup:
    VIR_FREE(rundir);
    virURIFree(uri);
    return sock_path;

 error:
    VIR_FREE(sock_path);
    goto cleanup;
}