static char *
icon_cirros (guestfs_h *g, struct inspect_fs *fs, size_t *size_r)
{
char *ret = NOT_FOUND;
char *type = NULL;
char *local = NULL;
char *pngfile = NULL;
struct command *cmd;
int r;
r = guestfs_exists (g, CIRROS_LOGO);
if (r == -1) {
ret = NULL; /* a real error */
goto out;
}
if (r == 0) goto out;
/* Check the file type and geometry. */
type = guestfs_file (g, CIRROS_LOGO);
if (!type) goto out;
if (!STRPREFIX (type, "ASCII text")) goto out;
local = guestfs___download_to_tmp (g, fs, CIRROS_LOGO, "icon", 1024);
if (!local) goto out;
/* Use pbmtext to render it. */
pngfile = safe_asprintf (g, "%s/cirros.png", g->tmpdir);
cmd = guestfs___new_command (g);
guestfs___cmd_add_string_unquoted (cmd, PBMTEXT " < ");
guestfs___cmd_add_string_quoted (cmd, local);
guestfs___cmd_add_string_unquoted (cmd, " | " PNMTOPNG " > ");
guestfs___cmd_add_string_quoted (cmd, pngfile);
r = guestfs___cmd_run (cmd);
guestfs___cmd_close (cmd);
if (r == -1)
goto out;
if (!WIFEXITED (r) || WEXITSTATUS (r) != 0)
goto out;
/* Read it into memory. */
if (read_whole_file (g, pngfile, &ret, size_r) == -1) {
ret = NULL;
goto out;
}
out:
free (pngfile);
free (local);
free (type);
return ret;
}
static char *
icon_windows_7 (guestfs_h *g, struct inspect_fs *fs, size_t *size_r)
{
CLEANUP_FREE char *filename = NULL;
CLEANUP_FREE char *filename_case = NULL;
CLEANUP_FREE char *filename_downloaded = NULL;
CLEANUP_FREE char *pngfile = NULL;
CLEANUP_CMD_CLOSE struct command *cmd = guestfs___new_command (g);
int r;
char *ret;
/* Download %systemroot%\explorer.exe */
filename = safe_asprintf (g, "%s/explorer.exe", fs->windows_systemroot);
filename_case = guestfs_case_sensitive_path (g, filename);
if (filename_case == NULL)
return NULL;
guestfs_push_error_handler (g, NULL, NULL);
r = guestfs_is_file (g, filename_case);
guestfs_pop_error_handler (g);
if (r == -1)
return NULL;
if (r == 0)
return NOT_FOUND;
filename_downloaded = guestfs___download_to_tmp (g, fs, filename_case,
"explorer.exe",
MAX_WINDOWS_EXPLORER_SIZE);
if (filename_downloaded == NULL)
return NOT_FOUND;
pngfile = safe_asprintf (g, "%s/windows-7-icon.png", g->tmpdir);
guestfs___cmd_add_string_unquoted (cmd, WRESTOOL " -x --type=2 --name=6801 ");
guestfs___cmd_add_string_quoted (cmd, filename_downloaded);
guestfs___cmd_add_string_unquoted (cmd,
" | " BMPTOPNM " | "
PAMCUT " -bottom 54 | "
PNMTOPNG " > ");
guestfs___cmd_add_string_quoted (cmd, pngfile);
r = guestfs___cmd_run (cmd);
if (r == -1)
return NULL;
if (!WIFEXITED (r) || WEXITSTATUS (r) != 0)
return NOT_FOUND;
if (read_whole_file (g, pngfile, &ret, size_r) == -1)
return NULL;
return ret;
}
static char *
icon_cirros (guestfs_h *g, struct inspect_fs *fs, size_t *size_r)
{
char *ret;
CLEANUP_FREE char *type = NULL;
CLEANUP_FREE char *local = NULL;
CLEANUP_FREE char *pngfile = NULL;
CLEANUP_CMD_CLOSE struct command *cmd = guestfs___new_command (g);
int r;
r = guestfs_is_file_opts (g, CIRROS_LOGO,
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1);
if (r == -1)
return NULL; /* a real error */
if (r == 0)
return NOT_FOUND;
/* Check the file type and geometry. */
type = guestfs_file (g, CIRROS_LOGO);
if (!type)
return NOT_FOUND;
if (!STRPREFIX (type, "ASCII text"))
return NOT_FOUND;
local = guestfs___download_to_tmp (g, fs, CIRROS_LOGO, "icon", 1024);
if (!local)
return NOT_FOUND;
/* Use pbmtext to render it. */
pngfile = safe_asprintf (g, "%s/cirros.png", g->tmpdir);
guestfs___cmd_add_string_unquoted (cmd, PBMTEXT " < ");
guestfs___cmd_add_string_quoted (cmd, local);
guestfs___cmd_add_string_unquoted (cmd, " | " PNMTOPNG " > ");
guestfs___cmd_add_string_quoted (cmd, pngfile);
r = guestfs___cmd_run (cmd);
if (r == -1)
return NOT_FOUND;
if (!WIFEXITED (r) || WEXITSTATUS (r) != 0)
return NOT_FOUND;
/* Read it into memory. */
if (read_whole_file (g, pngfile, &ret, size_r) == -1)
return NULL;
return ret;
}
static char *
icon_windows_7 (guestfs_h *g, struct inspect_fs *fs, size_t *size_r)
{
char *filename = NULL;
char *filename_case = NULL;
char *filename_downloaded = NULL;
char *pngfile = NULL;
char *ret;
struct command *cmd;
int r;
/* Download %systemroot%\explorer.exe */
filename = safe_asprintf (g, "%s/explorer.exe", fs->windows_systemroot);
filename_case = guestfs___case_sensitive_path_silently (g, filename);
if (filename_case == NULL)
goto not_found;
filename_downloaded = guestfs___download_to_tmp (g, fs, filename_case,
"explorer.exe",
MAX_WINDOWS_EXPLORER_SIZE);
if (filename_downloaded == NULL)
goto not_found;
pngfile = safe_asprintf (g, "%s/windows-7-icon.png", g->tmpdir);
cmd = guestfs___new_command (g);
guestfs___cmd_add_string_unquoted (cmd, WRESTOOL " -x --type=2 --name=6801 ");
guestfs___cmd_add_string_quoted (cmd, filename_downloaded);
guestfs___cmd_add_string_unquoted (cmd,
" | " BMPTOPNM " | "
PAMCUT " -bottom 54 | "
PNMTOPNG " > ");
guestfs___cmd_add_string_quoted (cmd, pngfile);
r = guestfs___cmd_run (cmd);
guestfs___cmd_close (cmd);
if (r == -1)
goto error;
if (!WIFEXITED (r) || WEXITSTATUS (r) != 0)
goto not_found;
if (read_whole_file (g, pngfile, &ret, size_r) == -1)
goto error;
free (filename);
free (filename_case);
free (filename_downloaded);
free (pngfile);
return ret;
error:
free (filename);
free (filename_case);
free (filename_downloaded);
free (pngfile);
return NULL;
not_found:
free (filename);
free (filename_case);
free (filename_downloaded);
free (pngfile);
return NOT_FOUND;
}
static char *
cpio_arch (guestfs_h *g, const char *file, const char *path)
{
CLEANUP_FREE char *tmpdir = guestfs_get_tmpdir (g), *dir = NULL;
CLEANUP_FREE char *initrd = NULL;
CLEANUP_CMD_CLOSE struct command *cmd = guestfs___new_command (g);
char *ret = NULL;
const char *method;
int64_t size;
int r;
size_t i;
if (asprintf (&dir, "%s/libguestfsXXXXXX", tmpdir) == -1) {
perror ("asprintf");
return NULL;
}
if (strstr (file, "gzip"))
method = "zcat";
else if (strstr (file, "bzip2"))
method = "bzcat";
else
method = "cat";
/* Security: Refuse to download initrd if it is huge. */
size = guestfs_filesize (g, path);
if (size == -1 || size > 100000000) {
error (g, _("size of %s unreasonable (%" PRIi64 " bytes)"),
path, size);
goto out;
}
if (mkdtemp (dir) == NULL) {
perrorf (g, "mkdtemp");
goto out;
}
initrd = safe_asprintf (g, "%s/initrd", dir);
if (guestfs_download (g, path, initrd) == -1)
goto out;
/* Construct a command to extract named binaries from the initrd file. */
guestfs___cmd_add_string_unquoted (cmd, "cd ");
guestfs___cmd_add_string_quoted (cmd, dir);
guestfs___cmd_add_string_unquoted (cmd, " && ");
guestfs___cmd_add_string_unquoted (cmd, method);
guestfs___cmd_add_string_unquoted (cmd, " initrd | cpio --quiet -id");
for (i = 0; initrd_binaries[i] != NULL; ++i) {
guestfs___cmd_add_string_unquoted (cmd, " ");
guestfs___cmd_add_string_quoted (cmd, initrd_binaries[i]);
}
r = guestfs___cmd_run (cmd);
if (r == -1)
goto out;
if (!WIFEXITED (r) || WEXITSTATUS (r) != 0) {
guestfs___external_command_failed (g, r, "cpio", path);
goto out;
}
for (i = 0; initrd_binaries[i] != NULL; ++i) {
CLEANUP_FREE char *bin =
safe_asprintf (g, "%s/%s", dir, initrd_binaries[i]);
if (is_regular_file (bin)) {
int flags = g->verbose ? MAGIC_DEBUG : 0;
flags |= MAGIC_ERROR | MAGIC_RAW;
magic_t m = magic_open (flags);
if (m == NULL) {
perrorf (g, "magic_open");
goto out;
}
if (magic_load (m, NULL) == -1) {
perrorf (g, "magic_load: default magic database file");
magic_close (m);
goto out;
}
const char *line = magic_file (m, bin);
if (line == NULL) {
perrorf (g, "magic_file: %s", bin);
magic_close (m);
goto out;
}
CLEANUP_FREE char *elf_arch = match1 (g, line, re_file_elf);
if (elf_arch != NULL) {
ret = canonical_elf_arch (g, elf_arch);
magic_close (m);
goto out;
}
magic_close (m);
}
}
error (g, "file_architecture: could not determine architecture of cpio archive");
out:
guestfs___recursive_remove_dir (g, dir);
return ret;
}