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#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <assert.h>
#include <sys/stat.h>
#include "apk_adb.h"
#include "apk_applet.h"
struct conv_script {
struct list_head script_node;
char csum_len;
char csum[32];
int type;
size_t size;
apk_blob_t *triggers;
char script[];
};
struct conv_ctx {
struct apk_atom_pool atoms;
struct adb_obj pkgs;
struct list_head script_head;
struct adb dbi;
struct adb dbp;
int found;
};
static int read_script(void *pctx, const struct apk_file_info *ae, struct apk_istream *is)
{
struct conv_ctx *ctx = pctx;
struct conv_script *s;
char *fncsum, *fnaction;
apk_blob_t blob;
int type;
/* The scripts db expects regular file with name in format:
* pkgname-version.identity.action */
if (!S_ISREG(ae->mode)) return 0;
fnaction = memrchr(ae->name, '.', strlen(ae->name));
if (!fnaction || fnaction == ae->name) return 0;
fncsum = memrchr(ae->name, '.', fnaction - ae->name - 1);
if (!fncsum) return 0;
fnaction++;
fncsum++;
/* Parse it */
type = adb_s_field_by_name(&schema_scripts, fnaction);
if (!type) return 0;
blob = APK_BLOB_PTR_PTR(fncsum, fnaction - 2);
if (blob.len+1 > sizeof s->csum) return 0;
s = malloc(sizeof(struct conv_script) + ae->size);
if (!s) return 0;
memset(s, 0, sizeof *s);
list_init(&s->script_node);
s->csum_len = blob.len;
memcpy(s->csum, blob.ptr, blob.len);
s->type = type;
s->size = ae->size;
apk_istream_read(is, s->script, s->size);
if (s->script[s->size-1] == '\n') {
while (s->size > 1 && s->script[s->size-2] == '\n')
s->size--;
}
list_add_tail(&s->script_node, &ctx->script_head);
return 0;
}
static struct conv_script *find_pkg(struct conv_ctx *ctx, apk_blob_t identity, int type)
{
struct conv_script *s;
list_for_each_entry(s, &ctx->script_head, script_node)
if (apk_blob_compare(APK_BLOB_PTR_LEN(s->csum, s->csum_len), identity) == 0)
return s;
return 0;
}
static int read_triggers(struct conv_ctx *ctx, struct apk_istream *is)
{
apk_blob_t l, r, nl = APK_BLOB_STR("\n"), spc = APK_BLOB_STR(" ");
struct conv_script *s;
if (IS_ERR(is)) return PTR_ERR(is);
while (!APK_BLOB_IS_NULL(l = apk_istream_get_delim(is, nl))) {
if (!apk_blob_split(l, spc, &l, &r)) continue;
s = find_pkg(ctx, l, ADBI_SCRPT_TRIGGER);
if (!s) continue;
s->triggers = apk_atomize_dup(&ctx->atoms, r);
}
apk_istream_close(is);
return 0;
}
static void convert_idb(struct conv_ctx *ctx, struct apk_istream *is)
{
struct apk_checksum csum;
struct adb_obj pkg, pkginfo, files, file, paths, path, scripts, triggers;
apk_blob_t l, val, spc = APK_BLOB_STR(" "), nl = APK_BLOB_STR("\n");
struct conv_script *s;
int i;
adb_wo_alloca(&scripts, &schema_scripts, &ctx->dbp);
adb_wo_alloca(&triggers, &schema_string_array, &ctx->dbp);
adb_wo_alloca(&pkginfo, &schema_pkginfo, &ctx->dbp);
adb_wo_alloca(&files, &schema_file_array, &ctx->dbp);
adb_wo_alloca(&file, &schema_file, &ctx->dbp);
adb_wo_alloca(&paths, &schema_path_array, &ctx->dbp);
adb_wo_alloca(&path, &schema_path, &ctx->dbp);
adb_wo_alloca(&pkg, &schema_package, &ctx->dbp);
while (!APK_BLOB_IS_NULL(l = apk_istream_get_delim(is, nl))) {
if (l.len < 2) {
adb_wa_append_obj(&files, &file);
adb_wo_obj(&path, ADBI_FI_FILES, &files);
adb_wa_append_obj(&paths, &path);
adb_wo_obj(&pkg, ADBI_PKG_PKGINFO, &pkginfo);
adb_wo_obj(&pkg, ADBI_PKG_PATHS, &paths);
adb_w_rootobj(&pkg);
adb_wa_append(&ctx->pkgs, adb_w_adb(&ctx->dbi, &ctx->dbp));
adb_reset(&ctx->dbp);
continue;
}
val = APK_BLOB_PTR_LEN(l.ptr+2, l.len-2);
i = adb_pkg_field_index(l.ptr[0]);
if (i > 0) adb_wo_pkginfo(&pkginfo, i, val);
switch (l.ptr[0]) {
case 'C': // pkg checksum
list_for_each_entry(s, &ctx->script_head, script_node) {
if (apk_blob_compare(APK_BLOB_PTR_LEN(s->csum, s->csum_len), val) != 0)
continue;
adb_wo_blob(&scripts, s->type, APK_BLOB_PTR_LEN(s->script, s->size));
if (s->type == ADBI_SCRPT_TRIGGER && s->triggers) {
apk_blob_t r = *s->triggers, l = *s->triggers;
while (apk_blob_split(r, spc, &l, &r))
adb_wa_append(&triggers, adb_w_blob(&ctx->dbp, l));
adb_wa_append(&triggers, adb_w_blob(&ctx->dbp, r));
adb_wo_obj(&pkg, ADBI_PKG_TRIGGERS, &triggers);
}
}
adb_wo_obj(&pkg, ADBI_PKG_SCRIPTS, &scripts);
break;
case 'F': // directory name
adb_wa_append_obj(&files, &file);
adb_wo_obj(&path, ADBI_FI_FILES, &files);
adb_wa_append_obj(&paths, &path);
adb_wo_blob(&path, ADBI_FI_NAME, val);
break;
case 'M': // directory mode: uid:gid:mode:xattrcsum
adb_wo_int(&path, ADBI_FI_UID, apk_blob_pull_uint(&val, 10));
apk_blob_pull_char(&val, ':');
adb_wo_int(&path, ADBI_FI_GID, apk_blob_pull_uint(&val, 10));
apk_blob_pull_char(&val, ':');
adb_wo_int(&path, ADBI_FI_MODE, apk_blob_pull_uint(&val, 8));
break;
case 'R': // file name
adb_wa_append_obj(&files, &file);
adb_wo_blob(&file, ADBI_FI_NAME, val);
break;
case 'a': // file mode: uid:gid:mode:xattrcsum
adb_wo_int(&file, ADBI_FI_UID, apk_blob_pull_uint(&val, 10));
apk_blob_pull_char(&val, ':');
adb_wo_int(&file, ADBI_FI_GID, apk_blob_pull_uint(&val, 10));
apk_blob_pull_char(&val, ':');
adb_wo_int(&file, ADBI_FI_MODE, apk_blob_pull_uint(&val, 8));
break;
case 'Z': // file content hash
apk_blob_pull_csum(&val, &csum);
adb_wo_blob(&file, ADBI_FI_HASHES, APK_BLOB_CSUM(csum));
break;
case 's': // repository_tag
case 'f': // fix required (flags: fsx)
/* FIXME */
break;
default:
break;
}
}
}
static int conv_main(void *pctx, struct apk_ctx *ac, struct apk_string_array *args)
{
struct conv_ctx *ctx = pctx;
struct adb_obj idb;
int r;
int root_fd = apk_ctx_fd_root(ac);
list_init(&ctx->script_head);
apk_atom_init(&ctx->atoms);
adb_w_init_alloca(&ctx->dbi, ADB_SCHEMA_INSTALLED_DB, 10);
adb_w_init_alloca(&ctx->dbp, ADB_SCHEMA_PACKAGE, 1000);
adb_wo_alloca(&idb, &schema_idb, &ctx->dbi);
adb_wo_alloca(&ctx->pkgs, &schema_package_adb_array, &ctx->dbi);
apk_tar_parse(
apk_istream_from_file(root_fd, "lib/apk/db/scripts.tar"),
read_script, ctx, apk_ctx_get_id_cache(ac));
read_triggers(ctx, apk_istream_from_file(root_fd, "lib/apk/db/triggers"));
convert_idb(ctx, apk_istream_from_file(root_fd, "lib/apk/db/installed"));
adb_wo_obj(&idb, ADBI_IDB_PACKAGES, &ctx->pkgs);
adb_w_rootobj(&idb);
r = adb_c_create(
//apk_ostream_to_file(db->root_fd, "lib/apk/db/installed.adb", 0644),
apk_ostream_to_file(AT_FDCWD, "installed.adb", 0644),
&ctx->dbi, apk_ctx_get_trust(ac));
if (r == 0) {
// unlink old files
}
adb_free(&ctx->dbi);
adb_free(&ctx->dbp);
apk_atom_free(&ctx->atoms);
return r;
}
static struct apk_applet apk_convdb = {
.name = "convdb",
.context_size = sizeof(struct conv_ctx),
.optgroups = { &optgroup_global, &optgroup_signing },
.main = conv_main,
};
APK_DEFINE_APPLET(apk_convdb);
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