/
inspect-apps.c
942 lines (812 loc) · 27.7 KB
/
inspect-apps.c
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/* libguestfs
* Copyright (C) 2010-2012 Red Hat Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#ifdef HAVE_ENDIAN_H
#include <endian.h>
#endif
#ifdef HAVE_SYS_ENDIAN_H
#include <sys/endian.h>
#endif
#if defined __APPLE__ && defined __MACH__
/* Define/include necessary items on MacOS X */
#include <machine/endian.h>
#define __BIG_ENDIAN BIG_ENDIAN
#define __LITTLE_ENDIAN LITTLE_ENDIAN
#define __BYTE_ORDER BYTE_ORDER
#include <libkern/OSByteOrder.h>
#define __bswap_32 OSSwapConstInt32
#endif /* __APPLE__ */
#include "guestfs.h"
#include "guestfs-internal.h"
#include "guestfs-internal-actions.h"
#ifdef DB_DUMP
static struct guestfs_application2_list *list_applications_rpm (guestfs_h *g, struct inspect_fs *fs);
#endif
static struct guestfs_application2_list *list_applications_deb (guestfs_h *g, struct inspect_fs *fs);
static struct guestfs_application2_list *list_applications_pacman (guestfs_h *g, struct inspect_fs *fs);
static struct guestfs_application2_list *list_applications_apk (guestfs_h *g, struct inspect_fs *fs);
static struct guestfs_application2_list *list_applications_windows (guestfs_h *g, struct inspect_fs *fs);
static void add_application (guestfs_h *g, struct guestfs_application2_list *, const char *name, const char *display_name, int32_t epoch, const char *version, const char *release, const char *arch, const char *install_path, const char *publisher, const char *url, const char *description);
static void sort_applications (struct guestfs_application2_list *);
/* The deprecated guestfs_inspect_list_applications call, which is now
* just a wrapper around guestfs_inspect_list_applications2.
*/
struct guestfs_application_list *
guestfs_impl_inspect_list_applications (guestfs_h *g, const char *root)
{
struct guestfs_application_list *ret;
struct guestfs_application2_list *r;
size_t i;
/* Call the new function. */
r = guestfs_inspect_list_applications2 (g, root);
if (!r)
return NULL;
/* Translate the structures from the new format to the old format. */
ret = safe_malloc (g, sizeof (struct guestfs_application_list));
ret->len = r->len;
ret->val =
safe_malloc (g, sizeof (struct guestfs_application) * r->len);
for (i = 0; i < r->len; ++i) {
ret->val[i].app_name = r->val[i].app2_name;
ret->val[i].app_display_name = r->val[i].app2_display_name;
ret->val[i].app_epoch = r->val[i].app2_epoch;
ret->val[i].app_version = r->val[i].app2_version;
ret->val[i].app_release = r->val[i].app2_release;
ret->val[i].app_install_path = r->val[i].app2_install_path;
ret->val[i].app_trans_path = r->val[i].app2_trans_path;
ret->val[i].app_publisher = r->val[i].app2_publisher;
ret->val[i].app_url = r->val[i].app2_url;
ret->val[i].app_source_package = r->val[i].app2_source_package;
ret->val[i].app_summary = r->val[i].app2_summary;
ret->val[i].app_description = r->val[i].app2_description;
/* The other strings that we don't copy must be freed. */
free (r->val[i].app2_arch);
free (r->val[i].app2_spare1);
free (r->val[i].app2_spare2);
free (r->val[i].app2_spare3);
free (r->val[i].app2_spare4);
}
free (r->val); /* Must not free the other strings. */
free (r);
return ret;
}
/* Unlike the simple inspect-get-* calls, this one assumes that the
* disks are mounted up, and reads files from the mounted disks.
*/
struct guestfs_application2_list *
guestfs_impl_inspect_list_applications2 (guestfs_h *g, const char *root)
{
struct guestfs_application2_list *ret = NULL;
struct inspect_fs *fs = guestfs_int_search_for_root (g, root);
if (!fs)
return NULL;
/* Presently we can only list applications for installed disks. It
* is possible in future to get lists of packages from installers.
*/
if (fs->format == OS_FORMAT_INSTALLED) {
switch (fs->type) {
case OS_TYPE_LINUX:
case OS_TYPE_HURD:
switch (fs->package_format) {
case OS_PACKAGE_FORMAT_RPM:
#ifdef DB_DUMP
ret = list_applications_rpm (g, fs);
if (ret == NULL)
return NULL;
#endif
break;
case OS_PACKAGE_FORMAT_DEB:
ret = list_applications_deb (g, fs);
if (ret == NULL)
return NULL;
break;
case OS_PACKAGE_FORMAT_PACMAN:
ret = list_applications_pacman (g, fs);
if (ret == NULL)
return NULL;
break;
case OS_PACKAGE_FORMAT_APK:
ret = list_applications_apk (g, fs);
if (ret == NULL)
return NULL;
break;
case OS_PACKAGE_FORMAT_EBUILD:
case OS_PACKAGE_FORMAT_PISI:
case OS_PACKAGE_FORMAT_PKGSRC:
case OS_PACKAGE_FORMAT_XBPS:
case OS_PACKAGE_FORMAT_UNKNOWN:
; /* nothing */
}
break;
case OS_TYPE_WINDOWS:
ret = list_applications_windows (g, fs);
if (ret == NULL)
return NULL;
break;
case OS_TYPE_FREEBSD:
case OS_TYPE_MINIX:
case OS_TYPE_NETBSD:
case OS_TYPE_DOS:
case OS_TYPE_OPENBSD:
case OS_TYPE_UNKNOWN:
; /* nothing */
}
}
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;
}
#ifdef DB_DUMP
/* This data comes from the Name database, and contains the application
* names and the first 4 bytes of each link field.
*/
struct rpm_names_list {
struct rpm_name *names;
size_t len;
};
struct rpm_name {
char *name;
char link[4];
};
static void
free_rpm_names_list (struct rpm_names_list *list)
{
size_t i;
for (i = 0; i < list->len; ++i)
free (list->names[i].name);
free (list->names);
}
static int
compare_links (const void *av, const void *bv)
{
const struct rpm_name *a = av;
const struct rpm_name *b = bv;
return memcmp (a->link, b->link, 4);
}
static int
read_rpm_name (guestfs_h *g,
const unsigned char *key, size_t keylen,
const unsigned char *value, size_t valuelen,
void *listv)
{
struct rpm_names_list *list = listv;
const unsigned char *link_p;
char *name;
/* Ignore bogus entries. */
if (keylen == 0 || valuelen < 4)
return 0;
/* A name entry will have as many links as installed instances of
* that package. For example, if glibc.i686 and glibc.x86_64 are
* both installed, then there will be a link for each Packages
* entry. Add an entry onto list for all installed instances.
*/
for (link_p = value; link_p < value + valuelen; link_p += 8) {
name = safe_strndup (g, (const char *) key, keylen);
list->names = safe_realloc (g, list->names,
(list->len + 1) * sizeof (struct rpm_name));
list->names[list->len].name = name;
memcpy (list->names[list->len].link, link_p, 4);
list->len++;
}
return 0;
}
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-align"
/* tag constants, see rpmtag.h in RPM for complete list */
#define RPMTAG_VERSION 1001
#define RPMTAG_RELEASE 1002
#define RPMTAG_EPOCH 1003
#define RPMTAG_ARCH 1022
static char *
get_rpm_header_tag (guestfs_h *g, const unsigned char *header_start,
size_t header_len, uint32_t tag, char type)
{
uint32_t num_fields, offset;
const unsigned char *cursor = header_start + 8, *store, *header_end;
size_t max_len;
char iv[4];
/* This function parses the RPM header structure to pull out various
* tag strings (version, release, arch, etc.). For more detail on the
* header format, see:
* http://www.rpm.org/max-rpm/s1-rpm-file-format-rpm-file-format.html#S2-RPM-FILE-FORMAT-HEADER
*/
/* The minimum header size that makes sense here is 24 bytes. Four
* bytes for number of fields, followed by four bytes denoting the
* size of the store, then 16 bytes for the first index entry.
*/
if (header_len < 24)
return NULL;
num_fields = be32toh (*(uint32_t *) header_start);
store = header_start + 8 + (16 * num_fields);
/* The first byte *after* the buffer. If you are here, you've gone
* too far! */
header_end = header_start + header_len;
while (cursor < store && cursor <= header_end - 16) {
if (be32toh (*(uint32_t *) cursor) == tag) {
offset = be32toh(*(uint32_t *) (cursor + 8));
if (store + offset >= header_end)
return NULL;
max_len = header_end - (store + offset);
switch (type) {
case 's':
return safe_strndup (g, (const char *) (store + offset), max_len);
case 'i':
memset (iv, 0, sizeof iv);
memcpy (iv, (void *) (store + offset),
max_len > sizeof iv ? sizeof iv : max_len);
return safe_memdup (g, iv, sizeof iv);
default:
abort ();
}
}
cursor += 16;
}
return NULL;
}
struct read_package_data {
struct rpm_names_list *list;
struct guestfs_application2_list *apps;
};
static int
read_package (guestfs_h *g,
const unsigned char *key, size_t keylen,
const unsigned char *value, size_t valuelen,
void *datav)
{
struct read_package_data *data = datav;
struct rpm_name nkey, *entry;
CLEANUP_FREE char *version = NULL, *release = NULL,
*epoch_str = NULL, *arch = NULL;
int32_t epoch;
/* This function reads one (key, value) pair from the Packages
* database. The key is the link field (see struct rpm_name). The
* value is a long binary string, but we can extract the header data
* from it as below. First we have to look up the link field in the
* list of links (which is sorted by link field).
*/
/* Ignore bogus entries. */
if (keylen < 4 || valuelen == 0)
return 0;
/* Look up the link (key) in the list. */
memcpy (nkey.link, key, 4);
entry = bsearch (&nkey, data->list->names, data->list->len,
sizeof (struct rpm_name), compare_links);
if (!entry)
return 0; /* Not found - ignore it. */
/* We found a matching link entry, so that gives us the application
* name (entry->name). Now we can get other data for this
* application out of the binary value string.
*/
version = get_rpm_header_tag (g, value, valuelen, RPMTAG_VERSION, 's');
release = get_rpm_header_tag (g, value, valuelen, RPMTAG_RELEASE, 's');
epoch_str = get_rpm_header_tag (g, value, valuelen, RPMTAG_EPOCH, 'i');
arch = get_rpm_header_tag (g, value, valuelen, RPMTAG_ARCH, 's');
/* The epoch is stored as big-endian integer. */
if (epoch_str)
epoch = be32toh (*(int32_t *) epoch_str);
else
epoch = 0;
/* Add the application and what we know. */
if (version && release)
add_application (g, data->apps, entry->name, "", epoch, version, release,
arch ? arch : "", "", "", "", "");
return 0;
}
#pragma GCC diagnostic pop
static struct guestfs_application2_list *
list_applications_rpm (guestfs_h *g, struct inspect_fs *fs)
{
CLEANUP_FREE char *Name = NULL, *Packages = NULL;
struct rpm_names_list list = { .names = NULL, .len = 0 };
struct guestfs_application2_list *apps = NULL;
struct read_package_data data;
Name = guestfs_int_download_to_tmp (g, fs,
"/var/lib/rpm/Name", "rpm_Name",
MAX_PKG_DB_SIZE);
if (Name == NULL)
goto error;
Packages = guestfs_int_download_to_tmp (g, fs,
"/var/lib/rpm/Packages", "rpm_Packages",
MAX_PKG_DB_SIZE);
if (Packages == NULL)
goto error;
/* Read Name database. */
if (guestfs_int_read_db_dump (g, Name, &list, read_rpm_name) == -1)
goto error;
/* Sort the names by link field for fast searching. */
qsort (list.names, list.len, sizeof (struct rpm_name), compare_links);
/* Allocate 'apps' list. */
apps = safe_malloc (g, sizeof *apps);
apps->len = 0;
apps->val = NULL;
/* Read Packages database. */
data.list = &list;
data.apps = apps;
if (guestfs_int_read_db_dump (g, Packages, &data, read_package) == -1)
goto error;
free_rpm_names_list (&list);
return apps;
error:
free_rpm_names_list (&list);
guestfs_free_application2_list (apps);
return NULL;
}
#endif /* defined DB_DUMP */
static struct guestfs_application2_list *
list_applications_deb (guestfs_h *g, struct inspect_fs *fs)
{
CLEANUP_FREE char *status = NULL;
struct guestfs_application2_list *apps = NULL, *ret = NULL;
FILE *fp;
char line[1024];
size_t len;
int32_t epoch = 0;
CLEANUP_FREE char *name = NULL, *version = NULL, *release = NULL, *arch = NULL;
int installed_flag = 0;
status = guestfs_int_download_to_tmp (g, fs, "/var/lib/dpkg/status", "status",
MAX_PKG_DB_SIZE);
if (status == NULL)
return NULL;
fp = fopen (status, "r");
if (fp == NULL) {
perrorf (g, "fopen: %s", status);
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 *p1, *p2;
p1 = strchr (&line[9], ':');
if (p1) {
*p1++ = '\0';
epoch = guestfs_int_parse_unsigned_int (g, &line[9]); /* -1 on error */
} else {
p1 = &line[9];
epoch = 0;
}
p2 = strchr (p1, '-');
if (p2) {
*p2++ = '\0';
release = safe_strdup (g, p2);
} else {
release = NULL;
}
version = safe_strdup (g, p1);
}
else if (STRPREFIX (line, "Architecture: ")) {
free (arch);
arch = safe_strdup (g, &line[14]);
}
else if (STREQ (line, "")) {
if (installed_flag && name && version && (epoch >= 0))
add_application (g, apps, name, "", epoch, version, release ? : "",
arch ? : "", "", "", "", "");
free (name);
free (version);
free (release);
free (arch);
name = version = release = arch = NULL;
installed_flag = 0;
}
}
if (fclose (fp) == -1) {
perrorf (g, "fclose: %s", status);
goto out;
}
ret = apps;
out:
if (ret == NULL)
guestfs_free_application2_list (apps);
/*
if (fp)
fclose (fp);
*/
return ret;
}
static struct guestfs_application2_list *
list_applications_pacman (guestfs_h *g, struct inspect_fs *fs)
{
CLEANUP_FREE char *desc_file = NULL, *fname = NULL, *line = NULL;
CLEANUP_FREE_DIRENT_LIST struct guestfs_dirent_list *local_db = NULL;
struct guestfs_application2_list *apps = NULL, *ret = NULL;
struct guestfs_dirent *curr = NULL;
FILE *fp;
size_t i, allocsize = 0;
ssize_t len;
CLEANUP_FREE char *name = NULL, *version = NULL, *desc = NULL;
CLEANUP_FREE char *arch = NULL, *url = NULL;
char **key = NULL, *rel = NULL, *ver = NULL, *p;
int32_t epoch;
const size_t path_len = strlen ("/var/lib/pacman/local/") + strlen ("/desc");
local_db = guestfs_readdir (g, "/var/lib/pacman/local");
if (local_db == NULL)
return NULL;
/* Allocate 'apps' list. */
apps = safe_malloc (g, sizeof *apps);
apps->len = 0;
apps->val = NULL;
for (i = 0; i < local_db->len; i++) {
curr = &local_db->val[i];
if (curr->ftyp != 'd' || STREQ (curr->name, ".") || STREQ (curr->name, ".."))
continue;
free (fname);
fname = safe_malloc (g, strlen (curr->name) + path_len + 1);
sprintf (fname, "/var/lib/pacman/local/%s/desc", curr->name);
free (desc_file);
desc_file = guestfs_int_download_to_tmp (g, fs, fname, curr->name, 8192);
/* The desc files are small (4K). If the desc file does not exist or is
* larger than the 8K limit we've used, the database is probably corrupted,
* but we'll continue with the next package anyway.
*/
if (desc_file == NULL)
continue;
fp = fopen (desc_file, "r");
if (fp == NULL) {
perrorf (g, "fopen: %s", desc_file);
goto out;
}
while ((len = getline(&line, &allocsize, fp)) != -1) {
if (len > 0 && line[len-1] == '\n') {
line[--len] = '\0';
}
/* empty line */
if (len == 0) {
key = NULL;
continue;
}
if (key != NULL) {
*key = safe_strdup (g, line);
key = NULL;
continue;
}
if (STREQ (line, "%NAME%"))
key = &name;
else if (STREQ (line, "%VERSION%"))
key = &version;
else if (STREQ (line, "%DESC%"))
key = &desc;
else if (STREQ (line, "%URL%"))
key = &url;
else if (STREQ (line, "%ARCH%"))
key = &arch;
}
if ((name == NULL) || (version == NULL) || (arch == NULL))
/* Those are mandatory fields. The file is corrupted */
goto after_add_application;
/* version: [epoch:]ver-rel */
p = strchr (version, ':');
if (p) {
*p = '\0';
epoch = guestfs_int_parse_unsigned_int (g, version); /* -1 on error */
ver = p + 1;
} else {
epoch = 0;
ver = version;
}
p = strchr (ver, '-');
if (p) {
*p = '\0';
rel = p + 1;
} else /* release is a mandatory field */
goto after_add_application;
if ((epoch >= 0) && (ver[0] != '\0') && (rel[0] != '\0'))
add_application (g, apps, name, "", epoch, ver, rel, arch, "", "",
url ? : "", desc ? : "");
after_add_application:
key = NULL;
free (name);
free (version);
free (desc);
free (arch);
free (url);
name = version = desc = arch = url = NULL;
rel = ver = NULL; /* haven't allocated memory for those */
if (fclose (fp) == -1) {
perrorf (g, "fclose: %s", desc_file);
goto out;
}
}
ret = apps;
out:
if (ret == NULL)
guestfs_free_application2_list (apps);
return ret;
}
static struct guestfs_application2_list *
list_applications_apk (guestfs_h *g, struct inspect_fs *fs)
{
CLEANUP_FREE char *installed = NULL, *line = NULL;
struct guestfs_application2_list *apps = NULL, *ret = NULL;
FILE *fp;
size_t allocsize = 0;
ssize_t len;
int32_t epoch = 0;
CLEANUP_FREE char *name = NULL, *version = NULL, *release = NULL, *arch = NULL,
*url = NULL, *description = NULL;
installed = guestfs_int_download_to_tmp (g, fs, "/lib/apk/db/installed",
"installed", MAX_PKG_DB_SIZE);
if (installed == NULL)
return NULL;
fp = fopen (installed, "r");
if (fp == NULL) {
perrorf (g, "fopen: %s", installed);
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. Each package line is <character>:<field>.
*/
while ((len = getline (&line, &allocsize, fp)) != -1) {
if (len > 0 && line[len-1] == '\n') {
line[len-1] = '\0';
--len;
}
if (len > 1 && line[1] != ':') {
/* Invalid line format. Should we fail instead? */
continue;
}
switch (line[0]) {
case '\0':
if (name && version && (epoch >= 0))
add_application (g, apps, name, "", epoch, version, release ? : "",
arch ? : "", "", "", url ? : "", description ? : "");
free (name);
free (version);
free (release);
free (arch);
free (url);
free (description);
name = version = release = arch = url = description = NULL;
break;
case 'A':
free (arch);
arch = safe_strdup (g, &line[2]);
break;
case 'P':
free (name);
name = safe_strdup (g, &line[2]);
break;
case 'T':
free (description);
description = safe_strdup (g, &line[2]);
break;
case 'U':
free (url);
url = safe_strdup (g, &line[2]);
break;
case 'V':
free (version);
free (release);
char *p1, *p2;
p1 = strchr (&line[2], ':');
if (p1) {
*p1++ = '\0';
epoch = guestfs_int_parse_unsigned_int (g, &line[2]); /* -1 on error */
} else {
p1 = &line[2];
epoch = 0;
}
p2 = strchr (p1, '-');
if (p2) {
*p2++ = '\0';
/* Skip the leading 'r' in revisions. */
if (p2[0] == 'r')
++p2;
release = safe_strdup (g, p2);
} else {
release = NULL;
}
version = safe_strdup (g, p1);
break;
}
}
if (fclose (fp) == -1) {
perrorf (g, "fclose: %s", installed);
goto out;
}
ret = apps;
out:
if (ret == NULL)
guestfs_free_application2_list (apps);
/*
if (fp)
fclose (fp);
*/
return ret;
}
static void list_applications_windows_from_path (guestfs_h *g, struct guestfs_application2_list *apps, const char **path, size_t path_len);
static struct guestfs_application2_list *
list_applications_windows (guestfs_h *g, struct inspect_fs *fs)
{
CLEANUP_FREE char *software =
safe_asprintf (g, "%s/system32/config/software", fs->windows_systemroot);
CLEANUP_FREE char *software_path;
struct guestfs_application2_list *ret = NULL;
software_path = guestfs_case_sensitive_path (g, software);
if (!software_path)
return NULL;
if (guestfs_hivex_open (g, software_path,
GUESTFS_HIVEX_OPEN_VERBOSE, g->verbose, -1) == -1)
return NULL;
/* Allocate apps list. */
ret = safe_malloc (g, sizeof *ret);
ret->len = 0;
ret->val = NULL;
/* Ordinary native applications. */
const char *hivepath[] =
{ "Microsoft", "Windows", "CurrentVersion", "Uninstall" };
list_applications_windows_from_path (g, ret, hivepath,
sizeof hivepath / sizeof hivepath[0]);
/* 32-bit emulated Windows apps running on the WOW64 emulator.
* http://support.microsoft.com/kb/896459 (RHBZ#692545).
*/
const char *hivepath2[] =
{ "WOW6432node", "Microsoft", "Windows", "CurrentVersion", "Uninstall" };
list_applications_windows_from_path (g, ret, hivepath2,
sizeof hivepath2 / sizeof hivepath2[0]);
guestfs_hivex_close (g);
return ret;
}
static void
list_applications_windows_from_path (guestfs_h *g,
struct guestfs_application2_list *apps,
const char **path, size_t path_len)
{
CLEANUP_FREE_HIVEX_NODE_LIST struct guestfs_hivex_node_list *children = NULL;
int64_t node;
size_t i;
node = guestfs_hivex_root (g);
for (i = 0; node != 0 && i < path_len; ++i)
node = guestfs_hivex_node_get_child (g, node, path[i]);
if (node == 0)
return;
children = guestfs_hivex_node_children (g, node);
if (children == NULL)
return;
/* 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; i < children->len; ++i) {
int64_t child = children->val[i].hivex_node_h;
int64_t value;
CLEANUP_FREE char *name = NULL, *display_name = NULL, *version = NULL,
*install_path = NULL, *publisher = NULL, *url = NULL, *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 = guestfs_hivex_node_name (g, child);
if (name == NULL)
continue;
value = guestfs_hivex_node_get_value (g, child, "DisplayName");
if (value) {
display_name = guestfs_hivex_value_utf8 (g, value);
if (display_name) {
value = guestfs_hivex_node_get_value (g, child, "DisplayVersion");
if (value)
version = guestfs_hivex_value_utf8 (g, value);
value = guestfs_hivex_node_get_value (g, child, "InstallLocation");
if (value)
install_path = guestfs_hivex_value_utf8 (g, value);
value = guestfs_hivex_node_get_value (g, child, "Publisher");
if (value)
publisher = guestfs_hivex_value_utf8 (g, value);
value = guestfs_hivex_node_get_value (g, child, "URLInfoAbout");
if (value)
url = guestfs_hivex_value_utf8 (g, value);
value = guestfs_hivex_node_get_value (g, child, "Comments");
if (value)
comments = guestfs_hivex_value_utf8 (g, value);
add_application (g, apps, name, display_name, 0,
version ? : "",
"", "",
install_path ? : "",
publisher ? : "",
url ? : "",
comments ? : "");
}
}
}
}
static void
add_application (guestfs_h *g, struct guestfs_application2_list *apps,
const char *name, const char *display_name, int32_t epoch,
const char *version, const char *release, const char *arch,
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_application2));
apps->val[apps->len-1].app2_name = safe_strdup (g, name);
apps->val[apps->len-1].app2_display_name = safe_strdup (g, display_name);
apps->val[apps->len-1].app2_epoch = epoch;
apps->val[apps->len-1].app2_version = safe_strdup (g, version);
apps->val[apps->len-1].app2_release = safe_strdup (g, release);
apps->val[apps->len-1].app2_arch = safe_strdup (g, arch);
apps->val[apps->len-1].app2_install_path = safe_strdup (g, install_path);
/* XXX Translated path is not implemented yet. */
apps->val[apps->len-1].app2_trans_path = safe_strdup (g, "");
apps->val[apps->len-1].app2_publisher = safe_strdup (g, publisher);
apps->val[apps->len-1].app2_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].app2_source_package = safe_strdup (g, "");
apps->val[apps->len-1].app2_summary = safe_strdup (g, "");
apps->val[apps->len-1].app2_description = safe_strdup (g, description);
/* XXX Reserved for future use. */
apps->val[apps->len-1].app2_spare1 = safe_strdup (g, "");
apps->val[apps->len-1].app2_spare2 = safe_strdup (g, "");
apps->val[apps->len-1].app2_spare3 = safe_strdup (g, "");
apps->val[apps->len-1].app2_spare4 = safe_strdup (g, "");
}
/* Sort applications by name before returning the list. */
static int
compare_applications (const void *vp1, const void *vp2)
{
const struct guestfs_application2 *v1 = vp1;
const struct guestfs_application2 *v2 = vp2;
return strcmp (v1->app2_name, v2->app2_name);
}
static void
sort_applications (struct guestfs_application2_list *apps)
{
if (apps && apps->val)
qsort (apps->val, apps->len, sizeof (struct guestfs_application2),
compare_applications);
}