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core: Change fsck to use packfile parsing API

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This commit is contained in:
Colin Walters 2011-12-08 18:04:37 -05:00
parent f6117de8d3
commit d3058629fd
1 changed files with 37 additions and 41 deletions
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78
src/ostree/ot-builtin-fsck.c
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@ -47,62 +47,58 @@ checksum_archived_file (OtFsckData *data,
{ {
gboolean ret = FALSE; gboolean ret = FALSE;
GChecksum *ret_checksum = NULL; GChecksum *ret_checksum = NULL;
char *metadata_buf = NULL; GInputStream *in = NULL;
GVariant *metadata = NULL;
GVariant *xattrs = NULL; GVariant *xattrs = NULL;
GFileInputStream *in = NULL; GFileInfo *file_info = NULL;
guint32 metadata_len;
guint32 version, uid, gid, mode;
guint64 content_len;
gsize bytes_read;
char buf[8192]; char buf[8192];
gsize bytes_read;
guint32 mode;
in = g_file_read (file, NULL, error); if (!ostree_parse_archived_file (file, &file_info, &xattrs, &in, NULL, error))
if (!in)
goto out; goto out;
if (!g_input_stream_read_all ((GInputStream*)in, &metadata_len, 4, &bytes_read, NULL, error))
goto out;
metadata_len = GUINT32_FROM_BE (metadata_len);
metadata_buf = g_malloc (metadata_len);
if (!g_input_stream_read_all ((GInputStream*)in, metadata_buf, metadata_len, &bytes_read, NULL, error))
goto out;
metadata = g_variant_new_from_data (G_VARIANT_TYPE (OSTREE_ARCHIVED_FILE_VARIANT_FORMAT),
metadata_buf, metadata_len, FALSE, NULL, NULL);
g_variant_get (metadata, "(uuuu@a(ayay)t)",
&version, &uid, &gid, &mode,
&xattrs, &content_len);
uid = GUINT32_FROM_BE (uid);
gid = GUINT32_FROM_BE (gid);
mode = GUINT32_FROM_BE (mode);
content_len = GUINT64_FROM_BE (content_len);
ret_checksum = g_checksum_new (G_CHECKSUM_SHA256); ret_checksum = g_checksum_new (G_CHECKSUM_SHA256);
do mode = g_file_info_get_attribute_uint32 (file_info, "unix::mode");
if (S_ISREG (mode))
{ {
if (!g_input_stream_read_all ((GInputStream*)in, buf, sizeof(buf), &bytes_read, NULL, error)) g_assert (in != NULL);
goto out; do
g_checksum_update (ret_checksum, (guint8*)buf, bytes_read); {
if (!g_input_stream_read_all (in, buf, sizeof(buf), &bytes_read, NULL, error))
goto out;
g_checksum_update (ret_checksum, (guint8*)buf, bytes_read);
}
while (bytes_read > 0);
} }
while (bytes_read > 0); else if (S_ISLNK (mode))
{
const char *target = g_file_info_get_attribute_byte_string (file_info, "standard::symlink-target");
g_checksum_update (ret_checksum, (guint8*) target, strlen (target));
}
else if (S_ISBLK (mode) || S_ISCHR (mode))
{
guint32 rdev = g_file_info_get_attribute_uint32 (file_info, "unix::rdev");
guint32 rdev_be;
rdev_be = GUINT32_TO_BE (rdev);
ostree_checksum_update_stat (ret_checksum, uid, gid, mode); g_checksum_update (ret_checksum, (guint8*)&rdev_be, 4);
g_checksum_update (ret_checksum, (guint8*)g_variant_get_data (xattrs), g_variant_get_size (xattrs)); }
ostree_checksum_update_stat (ret_checksum,
g_file_info_get_attribute_uint32 (file_info, "unix::uid"),
g_file_info_get_attribute_uint32 (file_info, "unix::gid"),
mode);
if (xattrs)
g_checksum_update (ret_checksum, (guint8*)g_variant_get_data (xattrs), g_variant_get_size (xattrs));
ret = TRUE; ret = TRUE;
*out_checksum = ret_checksum; ot_transfer_out_value (out_checksum, &ret_checksum);
ret_checksum = NULL;
out: out:
ot_clear_checksum (&ret_checksum); ot_clear_checksum (&ret_checksum);
g_free (metadata_buf);
g_clear_object (&in); g_clear_object (&in);
ot_clear_gvariant (&metadata); g_clear_object (&file_info);
ot_clear_gvariant (&xattrs); ot_clear_gvariant (&xattrs);
return ret; return ret;
} }