static char *resolve_fstab_device (guestfs_h *g, const char *spec);
static void check_package_format (guestfs_h *g, struct inspect_fs *fs);
static void check_package_management (guestfs_h *g, struct inspect_fs *fs);
+static int download_to_tmp (guestfs_h *g, const char *filename, char *localtmp, int64_t max_size);
+static int inspect_with_augeas (guestfs_h *g, struct inspect_fs *fs, const char *filename, int (*f) (guestfs_h *, struct inspect_fs *));
+static char *first_line_of_file (guestfs_h *g, const char *filename);
static int
check_for_filesystem_on (guestfs_h *g, const char *device)
parse_release_file (guestfs_h *g, struct inspect_fs *fs,
const char *release_filename)
{
- char **product_name = guestfs_head_n (g, 1, release_filename);
- if (product_name == NULL)
+ fs->product_name = first_line_of_file (g, release_filename);
+ if (fs->product_name == NULL)
return -1;
- if (product_name[0] == NULL) {
- error (g, _("%s: file is empty"), release_filename);
- guestfs___free_string_list (product_name);
- return -1;
- }
-
- /* Note that this string becomes owned by the handle and will
- * be freed by guestfs___free_inspect_info.
- */
- fs->product_name = product_name[0];
- free (product_name);
-
return 0;
}
* DISTRIB_RELEASE=10.04 # Version
* DISTRIB_CODENAME=lucid
* DISTRIB_DESCRIPTION="Ubuntu 10.04.1 LTS" # Product name
- * In theory other distros could have this LSB file, but none do.
+ *
+ * [Ubuntu-derived ...] Linux Mint was found to have this:
+ * DISTRIB_ID=LinuxMint
+ * DISTRIB_RELEASE=10
+ * DISTRIB_CODENAME=julia
+ * DISTRIB_DESCRIPTION="Linux Mint 10 Julia"
+ * Linux Mint also has /etc/linuxmint/info with more information,
+ * but we can use the LSB file.
+ *
+ * Mandriva has:
+ * LSB_VERSION=lsb-4.0-amd64:lsb-4.0-noarch
+ * DISTRIB_ID=MandrivaLinux
+ * DISTRIB_RELEASE=2010.1
+ * DISTRIB_CODENAME=Henry_Farman
+ * DISTRIB_DESCRIPTION="Mandriva Linux 2010.1"
+ * Mandriva also has a normal release file called /etc/mandriva-release.
*/
static int
parse_lsb_release (guestfs_h *g, struct inspect_fs *fs)
fs->distro = OS_DISTRO_UBUNTU;
r = 1;
}
+ else if (fs->distro == 0 &&
+ STREQ (lines[i], "DISTRIB_ID=LinuxMint")) {
+ fs->distro = OS_DISTRO_LINUX_MINT;
+ r = 1;
+ }
+ else if (fs->distro == 0 &&
+ STREQ (lines[i], "DISTRIB_ID=MandrivaLinux")) {
+ fs->distro = OS_DISTRO_MANDRIVA;
+ r = 1;
+ }
else if (STRPREFIX (lines[i], "DISTRIB_RELEASE=")) {
char *major, *minor;
if (match2 (g, &lines[i][16], re_major_minor, &major, &minor)) {
* which filesystems are used by the operating system and how they
* are mounted.
*/
- if (check_fstab (g, fs) == -1)
+ if (inspect_with_augeas (g, fs, "/etc/fstab", check_fstab) == -1)
return -1;
return 0;
check_architecture (g, fs);
/* We already know /etc/fstab exists because it's part of the test above. */
- if (check_fstab (g, fs) == -1)
+ if (inspect_with_augeas (g, fs, "/etc/fstab", check_fstab) == -1)
return -1;
return 0;
}
}
-static int check_fstab_aug_open (guestfs_h *g, struct inspect_fs *fs);
-
static int
check_fstab (guestfs_h *g, struct inspect_fs *fs)
{
- int r;
- int64_t size;
-
- /* Security: Refuse to do this if /etc/fstab is huge. */
- size = guestfs_filesize (g, "/etc/fstab");
- if (size == -1 || size > 100000) {
- error (g, _("size of /etc/fstab unreasonable (%" PRIi64 " bytes)"), size);
- return -1;
- }
-
- /* XXX What if !feature_available (g, "augeas")? */
- if (guestfs_aug_init (g, "/", 16|32) == -1)
- return -1;
-
- /* Tell Augeas to only load /etc/fstab (thanks Raphaël Pinson). */
- guestfs_aug_rm (g, "/augeas/load//incl[. != \"/etc/fstab\"]");
- guestfs_aug_load (g);
-
- r = check_fstab_aug_open (g, fs);
- guestfs_aug_close (g);
- if (r == -1)
- return -1;
-
- return 0;
-}
-
-static int
-check_fstab_aug_open (guestfs_h *g, struct inspect_fs *fs)
-{
char **lines = guestfs_aug_ls (g, "/files/etc/fstab");
if (lines == NULL)
return -1;
static int
check_windows_registry (guestfs_h *g, struct inspect_fs *fs)
{
- TMP_TEMPLATE_ON_STACK (dir);
-#define dir_len (strlen (dir))
-#define software_hive_len (dir_len + 16)
- char software_hive[software_hive_len];
-#define cmd_len (dir_len + 16)
- char cmd[cmd_len];
+ TMP_TEMPLATE_ON_STACK (software_local);
size_t len = strlen (fs->windows_systemroot) + 64;
char software[len];
hive_h *h = NULL;
hive_value_h *values = NULL;
- /* Security: Refuse to download registry if it is huge. */
- int64_t size = guestfs_filesize (g, software_path);
- if (size == -1 || size > 100000000) {
- error (g, _("size of %s unreasonable (%" PRIi64 " bytes)"),
- software_path, size);
+ if (download_to_tmp (g, software_path, software_local, 100000000) == -1)
goto out;
- }
-
- if (mkdtemp (dir) == NULL) {
- perrorf (g, "mkdtemp");
- goto out;
- }
-
- snprintf (software_hive, software_hive_len, "%s/software", dir);
- if (guestfs_download (g, software_path, software_hive) == -1)
- goto out;
-
- h = hivex_open (software_hive, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
+ h = hivex_open (software_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
if (h == NULL) {
perrorf (g, "hivex_open");
goto out;
if (fs->minor_version == -1) {
free (key);
free (version);
- return -1;
+ goto out;
}
}
free (values);
free (software_path);
- /* Free up the temporary directory. Note the directory name cannot
- * contain shell meta-characters because of the way it was
- * constructed above.
- */
- snprintf (cmd, cmd_len, "rm -rf %s", dir);
- ignore_value (system (cmd));
-#undef dir_len
-#undef software_hive_len
-#undef cmd_len
+ /* Free up the temporary file. */
+ unlink (software_local);
+#undef software_local_len
return ret;
}
case OS_DISTRO_MEEGO:
case OS_DISTRO_REDHAT_BASED:
case OS_DISTRO_RHEL:
+ case OS_DISTRO_MANDRIVA:
fs->package_format = OS_PACKAGE_FORMAT_RPM;
break;
case OS_DISTRO_DEBIAN:
case OS_DISTRO_UBUNTU:
+ case OS_DISTRO_LINUX_MINT:
fs->package_format = OS_PACKAGE_FORMAT_DEB;
break;
case OS_DISTRO_DEBIAN:
case OS_DISTRO_UBUNTU:
+ case OS_DISTRO_LINUX_MINT:
fs->package_management = OS_PACKAGE_MANAGEMENT_APT;
break;
case OS_DISTRO_PARDUS:
fs->package_management = OS_PACKAGE_MANAGEMENT_PISI;
break;
+ case OS_DISTRO_MANDRIVA:
+ fs->package_management = OS_PACKAGE_MANAGEMENT_URPMI;
+ break;
case OS_DISTRO_WINDOWS:
case OS_DISTRO_UNKNOWN:
case OS_DISTRO_DEBIAN: ret = safe_strdup (g, "debian"); break;
case OS_DISTRO_FEDORA: ret = safe_strdup (g, "fedora"); break;
case OS_DISTRO_GENTOO: ret = safe_strdup (g, "gentoo"); break;
+ case OS_DISTRO_LINUX_MINT: ret = safe_strdup (g, "linuxmint"); break;
+ case OS_DISTRO_MANDRIVA: ret = safe_strdup (g, "mandriva"); break;
case OS_DISTRO_MEEGO: ret = safe_strdup (g, "meego"); break;
case OS_DISTRO_PARDUS: ret = safe_strdup (g, "pardus"); break;
case OS_DISTRO_REDHAT_BASED: ret = safe_strdup (g, "redhat-based"); break;
case OS_PACKAGE_MANAGEMENT_PACMAN: ret = safe_strdup (g, "pacman"); break;
case OS_PACKAGE_MANAGEMENT_PORTAGE: ret = safe_strdup (g, "portage"); break;
case OS_PACKAGE_MANAGEMENT_PISI: ret = safe_strdup (g, "pisi"); break;
+ case OS_PACKAGE_MANAGEMENT_URPMI: ret = safe_strdup (g, "urpmi"); break;
case OS_PACKAGE_MANAGEMENT_UNKNOWN:
default:
ret = safe_strdup (g, "unknown");
return ret;
}
+static struct guestfs_application_list *list_applications_rpm (guestfs_h *g, struct inspect_fs *fs);
+static struct guestfs_application_list *list_applications_deb (guestfs_h *g, struct inspect_fs *fs);
+static struct guestfs_application_list *list_applications_windows (guestfs_h *g, struct inspect_fs *fs);
+static void add_application (guestfs_h *g, struct guestfs_application_list *, const char *name, const char *display_name, int32_t epoch, const char *version, const char *release, const char *install_path, const char *publisher, const char *url, const char *description);
+static void sort_applications (struct guestfs_application_list *);
+
+/* Unlike the simple inspect-get-* calls, this one assumes that the
+ * disks are mounted up, and reads files from the mounted disks.
+ */
+struct guestfs_application_list *
+guestfs__inspect_list_applications (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return NULL;
+
+ struct guestfs_application_list *ret = NULL;
+
+ switch (fs->type) {
+ case OS_TYPE_LINUX:
+ switch (fs->package_format) {
+ case OS_PACKAGE_FORMAT_RPM:
+ ret = list_applications_rpm (g, fs);
+ if (ret == NULL)
+ return NULL;
+ break;
+
+ case OS_PACKAGE_FORMAT_DEB:
+ ret = list_applications_deb (g, fs);
+ if (ret == NULL)
+ return NULL;
+ break;
+
+ case OS_PACKAGE_FORMAT_PACMAN:
+ case OS_PACKAGE_FORMAT_EBUILD:
+ case OS_PACKAGE_FORMAT_PISI:
+ case OS_PACKAGE_FORMAT_UNKNOWN:
+ default:
+ /* nothing - keep GCC happy */;
+ }
+ break;
+
+ case OS_TYPE_WINDOWS:
+ ret = list_applications_windows (g, fs);
+ if (ret == NULL)
+ return NULL;
+ break;
+
+ case OS_TYPE_FREEBSD:
+ case OS_TYPE_UNKNOWN:
+ default:
+ /* nothing - keep GCC happy */;
+ }
+
+ if (ret == NULL) {
+ /* Don't know how to do inspection. Not an error, return an
+ * empty list.
+ */
+ ret = safe_malloc (g, sizeof *ret);
+ ret->len = 0;
+ ret->val = NULL;
+ }
+
+ sort_applications (ret);
+
+ return ret;
+}
+
+static struct guestfs_application_list *
+list_applications_rpm (guestfs_h *g, struct inspect_fs *fs)
+{
+ TMP_TEMPLATE_ON_STACK (tmpfile);
+
+ if (download_to_tmp (g, "/var/lib/rpm/Name", tmpfile, 10000000) == -1)
+ return NULL;
+
+ struct guestfs_application_list *apps = NULL, *ret = NULL;
+#define cmd_len (strlen (tmpfile) + 64)
+ char cmd[cmd_len];
+ FILE *pp = NULL;
+ char line[1024];
+ size_t len;
+
+ snprintf (cmd, cmd_len, "db_dump -p '%s'", tmpfile);
+
+ if (g->verbose)
+ fprintf (stderr, "list_applications_rpm: %s\n", cmd);
+
+ pp = popen (cmd, "r");
+ if (pp == NULL) {
+ perrorf (g, "popen: %s", cmd);
+ goto out;
+ }
+
+ /* Ignore everything to end-of-header marker. */
+ for (;;) {
+ if (fgets (line, sizeof line, pp) == NULL) {
+ error (g, _("unexpected end of output from db_dump command"));
+ goto out;
+ }
+
+ len = strlen (line);
+ if (len > 0 && line[len-1] == '\n') {
+ line[len-1] = '\0';
+ len--;
+ }
+
+ if (STREQ (line, "HEADER=END"))
+ break;
+ }
+
+ /* Allocate 'apps' list. */
+ apps = safe_malloc (g, sizeof *apps);
+ apps->len = 0;
+ apps->val = NULL;
+
+ /* Read alternate lines until end of data marker. */
+ for (;;) {
+ if (fgets (line, sizeof line, pp) == NULL) {
+ error (g, _("unexpected end of output from db_dump command"));
+ goto out;
+ }
+
+ len = strlen (line);
+ if (len > 0 && line[len-1] == '\n') {
+ line[len-1] = '\0';
+ len--;
+ }
+
+ if (STREQ (line, "DATA=END"))
+ break;
+
+ char *p = line;
+ if (len > 0 && line[0] == ' ')
+ p = line+1;
+ /* Ignore any application name that contains non-printable chars.
+ * In the db_dump output these would be escaped with backslash, so
+ * we can just ignore any such line.
+ */
+ if (strchr (p, '\\') == NULL)
+ add_application (g, apps, p, "", 0, "", "", "", "", "", "");
+
+ /* Discard next line. */
+ if (fgets (line, sizeof line, pp) == NULL) {
+ error (g, _("unexpected end of output from db_dump command"));
+ goto out;
+ }
+ }
+
+ /* Catch errors from the db_dump command. */
+ if (pclose (pp) == -1) {
+ perrorf (g, "pclose: %s", cmd);
+ goto out;
+ }
+ pp = NULL;
+
+ ret = apps;
+
+ out:
+ if (ret == NULL && apps != NULL)
+ guestfs_free_application_list (apps);
+ if (pp)
+ pclose (pp);
+ unlink (tmpfile);
+#undef cmd_len
+
+ return ret;
+}
+
+static struct guestfs_application_list *
+list_applications_deb (guestfs_h *g, struct inspect_fs *fs)
+{
+ TMP_TEMPLATE_ON_STACK (tmpfile);
+
+ if (download_to_tmp (g, "/var/lib/dpkg/status", tmpfile, 10000000) == -1)
+ return NULL;
+
+ struct guestfs_application_list *apps = NULL, *ret = NULL;
+ FILE *fp = NULL;
+ char line[1024];
+ size_t len;
+ char *name = NULL, *version = NULL, *release = NULL;
+ int installed_flag = 0;
+
+ fp = fopen (tmpfile, "r");
+ if (fp == NULL) {
+ perrorf (g, "fopen: %s", tmpfile);
+ goto out;
+ }
+
+ /* Allocate 'apps' list. */
+ apps = safe_malloc (g, sizeof *apps);
+ apps->len = 0;
+ apps->val = NULL;
+
+ /* Read the temporary file. Each package entry is separated by
+ * a blank line.
+ * XXX Strictly speaking this is in mailbox header format, so it
+ * would be possible for fields to spread across multiple lines,
+ * although for the short fields that we are concerned about this is
+ * unlikely and not seen in practice.
+ */
+ while (fgets (line, sizeof line, fp) != NULL) {
+ len = strlen (line);
+ if (len > 0 && line[len-1] == '\n') {
+ line[len-1] = '\0';
+ len--;
+ }
+
+ if (STRPREFIX (line, "Package: ")) {
+ free (name);
+ name = safe_strdup (g, &line[9]);
+ }
+ else if (STRPREFIX (line, "Status: ")) {
+ installed_flag = strstr (&line[8], "installed") != NULL;
+ }
+ else if (STRPREFIX (line, "Version: ")) {
+ free (version);
+ free (release);
+ char *p = strchr (&line[9], '-');
+ if (p) {
+ *p = '\0';
+ version = safe_strdup (g, &line[9]);
+ release = safe_strdup (g, p+1);
+ } else {
+ version = safe_strdup (g, &line[9]);
+ release = NULL;
+ }
+ }
+ else if (STREQ (line, "")) {
+ if (installed_flag && name && version)
+ add_application (g, apps, name, "", 0, version, release ? : "",
+ "", "", "", "");
+ free (name);
+ free (version);
+ free (release);
+ name = version = release = NULL;
+ installed_flag = 0;
+ }
+ }
+
+ if (fclose (fp) == -1) {
+ perrorf (g, "fclose: %s", tmpfile);
+ goto out;
+ }
+ fp = NULL;
+
+ ret = apps;
+
+ out:
+ if (ret == NULL && apps != NULL)
+ guestfs_free_application_list (apps);
+ if (fp)
+ fclose (fp);
+ free (name);
+ free (version);
+ free (release);
+ unlink (tmpfile);
+ return ret;
+}
+
+/* XXX We already download the SOFTWARE hive when doing general
+ * inspection. We could avoid this second download of the same file
+ * by caching these entries in the handle.
+ */
+static struct guestfs_application_list *
+list_applications_windows (guestfs_h *g, struct inspect_fs *fs)
+{
+ TMP_TEMPLATE_ON_STACK (software_local);
+
+ size_t len = strlen (fs->windows_systemroot) + 64;
+ char software[len];
+ snprintf (software, len, "%s/system32/config/software",
+ fs->windows_systemroot);
+
+ char *software_path = resolve_windows_path_silently (g, software);
+ if (!software_path)
+ /* If the software hive doesn't exist, just accept that we cannot
+ * find product_name etc.
+ */
+ return 0;
+
+ struct guestfs_application_list *apps = NULL, *ret = NULL;
+ hive_h *h = NULL;
+ hive_node_h *children = NULL;
+
+ if (download_to_tmp (g, software_path, software_local, 100000000) == -1)
+ goto out;
+
+ h = hivex_open (software_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
+ if (h == NULL) {
+ perrorf (g, "hivex_open");
+ goto out;
+ }
+
+ hive_node_h node = hivex_root (h);
+ const char *hivepath[] =
+ { "Microsoft", "Windows", "CurrentVersion", "Uninstall" };
+ size_t i;
+ for (i = 0;
+ node != 0 && i < sizeof hivepath / sizeof hivepath[0];
+ ++i) {
+ node = hivex_node_get_child (h, node, hivepath[i]);
+ }
+
+ if (node == 0) {
+ perrorf (g, "hivex: cannot locate HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall");
+ goto out;
+ }
+
+ children = hivex_node_children (h, node);
+ if (children == NULL) {
+ perrorf (g, "hivex_node_children");
+ goto out;
+ }
+
+ /* Allocate 'apps' list. */
+ apps = safe_malloc (g, sizeof *apps);
+ apps->len = 0;
+ apps->val = NULL;
+
+ /* Consider any child node that has a DisplayName key.
+ * See also:
+ * http://nsis.sourceforge.net/Add_uninstall_information_to_Add/Remove_Programs#Optional_values
+ */
+ for (i = 0; children[i] != 0; ++i) {
+ hive_value_h value;
+ char *name = NULL;
+ char *display_name = NULL;
+ char *version = NULL;
+ char *install_path = NULL;
+ char *publisher = NULL;
+ char *url = NULL;
+ char *comments = NULL;
+
+ /* Use the node name as a proxy for the package name in Linux. The
+ * display name is not language-independent, so it cannot be used.
+ */
+ name = hivex_node_name (h, children[i]);
+ if (name == NULL) {
+ perrorf (g, "hivex_node_get_name");
+ goto out;
+ }
+
+ value = hivex_node_get_value (h, children[i], "DisplayName");
+ if (value) {
+ display_name = hivex_value_string (h, value);
+ if (display_name) {
+ value = hivex_node_get_value (h, children[i], "DisplayVersion");
+ if (value)
+ version = hivex_value_string (h, value);
+ value = hivex_node_get_value (h, children[i], "InstallLocation");
+ if (value)
+ install_path = hivex_value_string (h, value);
+ value = hivex_node_get_value (h, children[i], "Publisher");
+ if (value)
+ publisher = hivex_value_string (h, value);
+ value = hivex_node_get_value (h, children[i], "URLInfoAbout");
+ if (value)
+ url = hivex_value_string (h, value);
+ value = hivex_node_get_value (h, children[i], "Comments");
+ if (value)
+ comments = hivex_value_string (h, value);
+
+ add_application (g, apps, name, display_name, 0,
+ version ? : "",
+ "",
+ install_path ? : "",
+ publisher ? : "",
+ url ? : "",
+ comments ? : "");
+ }
+ }
+
+ free (name);
+ free (display_name);
+ free (version);
+ free (install_path);
+ free (publisher);
+ free (url);
+ free (comments);
+ }
+
+ ret = apps;
+
+ out:
+ if (ret == NULL && apps != NULL)
+ guestfs_free_application_list (apps);
+ if (h) hivex_close (h);
+ free (children);
+ free (software_path);
+
+ /* Free up the temporary file. */
+ unlink (software_local);
+#undef software_local_len
+
+ return ret;
+}
+
+static void
+add_application (guestfs_h *g, struct guestfs_application_list *apps,
+ const char *name, const char *display_name, int32_t epoch,
+ const char *version, const char *release,
+ const char *install_path,
+ const char *publisher, const char *url,
+ const char *description)
+{
+ apps->len++;
+ apps->val = safe_realloc (g, apps->val,
+ apps->len * sizeof (struct guestfs_application));
+ apps->val[apps->len-1].app_name = safe_strdup (g, name);
+ apps->val[apps->len-1].app_display_name = safe_strdup (g, display_name);
+ apps->val[apps->len-1].app_epoch = epoch;
+ apps->val[apps->len-1].app_version = safe_strdup (g, version);
+ apps->val[apps->len-1].app_release = safe_strdup (g, release);
+ apps->val[apps->len-1].app_install_path = safe_strdup (g, install_path);
+ /* XXX Translated path is not implemented yet. */
+ apps->val[apps->len-1].app_trans_path = safe_strdup (g, "");
+ apps->val[apps->len-1].app_publisher = safe_strdup (g, publisher);
+ apps->val[apps->len-1].app_url = safe_strdup (g, url);
+ /* XXX The next two are not yet implemented for any package
+ * format, but we could easily support them for rpm and deb.
+ */
+ apps->val[apps->len-1].app_source_package = safe_strdup (g, "");
+ apps->val[apps->len-1].app_summary = safe_strdup (g, "");
+ apps->val[apps->len-1].app_description = safe_strdup (g, description);
+}
+
+/* Sort applications by name before returning the list. */
+static int
+compare_applications (const void *vp1, const void *vp2)
+{
+ const struct guestfs_application *v1 = vp1;
+ const struct guestfs_application *v2 = vp2;
+
+ return strcmp (v1->app_name, v2->app_name);
+}
+
+static void
+sort_applications (struct guestfs_application_list *apps)
+{
+ if (apps && apps->val)
+ qsort (apps->val, apps->len, sizeof (struct guestfs_application),
+ compare_applications);
+}
+
+/* Download to a guest file to a local temporary file. Refuse to
+ * download the guest file if it is larger than max_size. The caller
+ * is responsible for deleting the temporary file after use.
+ */
+static int
+download_to_tmp (guestfs_h *g, const char *filename,
+ char *localtmp, int64_t max_size)
+{
+ int fd;
+ char buf[32];
+ int64_t size;
+
+ size = guestfs_filesize (g, filename);
+ if (size == -1)
+ /* guestfs_filesize failed and has already set error in handle */
+ return -1;
+ if (size > max_size) {
+ error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
+ filename, size);
+ return -1;
+ }
+
+ fd = mkstemp (localtmp);
+ if (fd == -1) {
+ perrorf (g, "mkstemp");
+ return -1;
+ }
+
+ snprintf (buf, sizeof buf, "/dev/fd/%d", fd);
+
+ if (guestfs_download (g, filename, buf) == -1) {
+ close (fd);
+ unlink (localtmp);
+ return -1;
+ }
+
+ if (close (fd) == -1) {
+ perrorf (g, "close: %s", localtmp);
+ unlink (localtmp);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Call 'f' with Augeas opened and having parsed 'filename' (this file
+ * must exist). As a security measure, this bails if the file is too
+ * large for a reasonable configuration file. After the call to 'f'
+ * Augeas is closed.
+ */
+static int
+inspect_with_augeas (guestfs_h *g, struct inspect_fs *fs, const char *filename,
+ int (*f) (guestfs_h *, struct inspect_fs *))
+{
+ /* Security: Refuse to do this if filename is too large. */
+ int64_t size = guestfs_filesize (g, filename);
+ if (size == -1)
+ /* guestfs_filesize failed and has already set error in handle */
+ return -1;
+ if (size > 100000) {
+ error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
+ filename, size);
+ return -1;
+ }
+
+ /* If !feature_available (g, "augeas") then the next call will fail.
+ * Arguably we might want to fall back to a non-Augeas method in
+ * this case.
+ */
+ if (guestfs_aug_init (g, "/", 16|32) == -1)
+ return -1;
+
+ int r = -1;
+
+ /* Tell Augeas to only load one file (thanks Raphaël Pinson). */
+ char buf[strlen (filename) + 64];
+ snprintf (buf, strlen (filename) + 64, "/augeas/load//incl[. != \"%s\"]",
+ filename);
+ if (guestfs_aug_rm (g, buf) == -1)
+ goto out;
+
+ if (guestfs_aug_load (g) == -1)
+ goto out;
+
+ r = f (g, fs);
+
+ out:
+ guestfs_aug_close (g);
+
+ return r;
+}
+
+/* Get the first line of a small file, without any trailing newline
+ * character.
+ */
+static char *
+first_line_of_file (guestfs_h *g, const char *filename)
+{
+ char **lines;
+ int64_t size;
+ char *ret;
+
+ /* Don't trust guestfs_head_n not to break with very large files.
+ * Check the file size is something reasonable first.
+ */
+ size = guestfs_filesize (g, filename);
+ if (size == -1)
+ /* guestfs_filesize failed and has already set error in handle */
+ return NULL;
+ if (size > 1000000) {
+ error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
+ filename, size);
+ return NULL;
+ }
+
+ lines = guestfs_head_n (g, 1, filename);
+ if (lines == NULL)
+ return NULL;
+ if (lines[0] == NULL) {
+ error (g, _("%s: file is empty"), filename);
+ guestfs___free_string_list (lines);
+ return NULL;
+ }
+ /* lines[1] should be NULL because of '1' argument above ... */
+
+ ret = lines[0]; /* caller frees */
+ free (lines); /* free the array */
+
+ return ret;
+}
+
#else /* no PCRE or hivex at compile time */
/* XXX These functions should be in an optgroup. */
NOT_IMPL(NULL);
}
+struct guestfs_application_list *
+guestfs__inspect_list_applications (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
+}
+
#endif /* no PCRE or hivex at compile time */
void
git.annexia.org / libguestfs.git / blobdiff