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db: check syscall errors in update_permissions()

cute-signatures
Timo Teräs 2021-06-21 13:01:55 +03:00
parent 22281fb4b5
commit 0683b069ba
1 changed files with 18 additions and 5 deletions
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23
src/database.c
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@ -1945,9 +1945,15 @@ int apk_db_run_script(struct apk_database *db, char *fn, char **argv)
return 0;
}
static int update_permissions(apk_hash_item item, void *ctx)
struct update_permissions_ctx {
struct apk_database *db;
unsigned int errors;
};
static int update_permissions(apk_hash_item item, void *pctx)
{
struct apk_database *db = (struct apk_database *) ctx;
struct update_permissions_ctx *ctx = pctx;
struct apk_database *db = ctx->db;
struct apk_db_dir *dir = (struct apk_db_dir *) item;
struct stat st;
int r;
@ -1958,19 +1964,25 @@ static int update_permissions(apk_hash_item item, void *ctx)
r = fstatat(db->root_fd, dir->name, &st, AT_SYMLINK_NOFOLLOW);
if (r < 0 || (st.st_mode & 07777) != (dir->mode & 07777))
fchmodat(db->root_fd, dir->name, dir->mode, 0);
if (fchmodat(db->root_fd, dir->name, dir->mode, 0) < 0)
ctx->errors++;
if (r < 0 || st.st_uid != dir->uid || st.st_gid != dir->gid)
fchownat(db->root_fd, dir->name, dir->uid, dir->gid, 0);
if (fchownat(db->root_fd, dir->name, dir->uid, dir->gid, 0) < 0)
ctx->errors++;
return 0;
}
void apk_db_update_directory_permissions(struct apk_database *db)
{
struct apk_out *out = &db->ctx->out;
struct apk_installed_package *ipkg;
struct apk_db_dir_instance *diri;
struct apk_db_dir *dir;
struct hlist_node *dc, *dn;
struct update_permissions_ctx ctx = {
.db = db,
};
list_for_each_entry(ipkg, &db->installed.packages, installed_pkgs_list) {
hlist_for_each_entry_safe(diri, dc, dn, &ipkg->owned_dirs, pkg_dirs_list) {
@ -1985,7 +1997,8 @@ void apk_db_update_directory_permissions(struct apk_database *db)
apk_db_dir_apply_diri_permissions(diri);
}
}
apk_hash_foreach(&db->installed.dirs, update_permissions, db);
apk_hash_foreach(&db->installed.dirs, update_permissions, &ctx);
if (ctx.errors) apk_err(out, "%d errors updating directory permissions", ctx.errors);
}
int apk_db_cache_active(struct apk_database *db)