void-packages/lib/install.c
Juan RP 37e4be86f9 Added support to check the SHA256 hash for any binpkg before installation happens.
--HG--
extra : convert_revision : 4f812eb0cfb614461527e360db1692bd5f9c34aa
2009-03-02 23:38:24 +01:00

303 lines
7.1 KiB
C

/*-
* Copyright (c) 2008-2009 Juan Romero Pardines.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
#include <unistd.h>
#include <fcntl.h>
#include <xbps_api.h>
struct cbargs {
const char *destdir;
const char *pkgname;
int flags;
};
static int install_binpkg_repo_cb(prop_object_t, void *, bool *);
int
xbps_install_binary_pkg_fini(prop_dictionary_t repo, prop_dictionary_t pkg,
const char *destdir, int flags)
{
const char *pkgname, *version, *desc;
int rv = 0;
bool automatic = false;
assert(pkg != NULL);
prop_dictionary_get_cstring_nocopy(pkg, "pkgname", &pkgname);
prop_dictionary_get_cstring_nocopy(pkg, "version", &version);
prop_dictionary_get_cstring_nocopy(pkg, "short_desc", &desc);
if (repo == false)
automatic = true;
printf("Installing %s%s: found version %s ...\n",
automatic ? "dependency " : "", pkgname, version);
(void)fflush(stdout);
rv = xbps_unpack_binary_pkg(repo, pkg, destdir, flags);
if (rv == 0) {
rv = xbps_register_pkg(pkg, pkgname, version, desc, automatic);
if (rv != 0) {
printf("ERROR: couldn't register %s-%s! (%s)\n",
pkgname, version, strerror(rv));
return rv;
}
}
return 0;
}
int
xbps_install_binary_pkg(const char *pkgname, const char *destdir, int flags)
{
struct cbargs cb;
int rv = 0;
assert(pkgname != NULL);
if (destdir) {
if (chdir(destdir) == -1)
return errno;
} else {
if (chdir("/") == -1)
return errno;
destdir = "NOTSET";
}
cb.pkgname = pkgname;
cb.destdir = destdir;
cb.flags = flags;
/*
* Iterate over the repository pool and find out if we have
* all available binary packages.
*/
rv = xbps_callback_array_iter_in_repolist(install_binpkg_repo_cb,
(void *)&cb);
if (rv == 0 && errno != 0)
return errno;
return rv;
}
static int
install_binpkg_repo_cb(prop_object_t obj, void *arg, bool *cbloop_done)
{
prop_dictionary_t repod, pkgrd;
struct cbargs *cb = arg;
const char *repoloc;
char *plist;
int rv = 0;
plist = xbps_get_pkg_index_plist(prop_string_cstring_nocopy(obj));
if (plist == NULL)
return EINVAL;
repod = prop_dictionary_internalize_from_file(plist);
if (repod == NULL) {
free(plist);
return errno;
}
free(plist);
/*
* Get the package dictionary from current repository.
* If it's not there, pass to the next repository.
*/
pkgrd = xbps_find_pkg_in_dict(repod, "packages", cb->pkgname);
if (pkgrd == NULL) {
prop_object_release(repod);
errno = EAGAIN;
return 0;
}
/*
* Check SHA256 hash for binary package before anything else.
*/
if (!prop_dictionary_get_cstring_nocopy(repod, "location-local",
&repoloc)) {
prop_object_release(repod);
return EINVAL;
}
if ((rv = xbps_check_pkg_file_hash(pkgrd, repoloc)) != 0) {
prop_object_release(repod);
return rv;
}
/*
* Check if this package needs dependencies.
*/
if (!xbps_pkg_has_rundeps(pkgrd)) {
/* pkg has no deps, just install it. */
rv = xbps_install_binary_pkg_fini(repod, pkgrd,
cb->destdir, cb->flags);
prop_object_release(repod);
return rv;
}
/*
* Construct the dependency chain for this package.
*/
if ((rv = xbps_find_deps_in_pkg(pkgrd)) != 0) {
prop_object_release(repod);
if (rv == ENOENT) {
errno = ENOENT;
return 0;
}
return rv;
}
/*
* Install all required dependencies and the package itself.
*/
rv = xbps_install_pkg_deps(cb->pkgname, cb->destdir, cb->flags);
if (rv == 0) {
rv = xbps_install_binary_pkg_fini(repod, pkgrd,
cb->destdir, cb->flags);
if (rv == 0)
*cbloop_done = true;
}
/* Cleanup errno, just in case */
if (rv == 0)
errno = 0;
prop_object_release(repod);
return rv;
}
static prop_dictionary_t
make_dict_from_pkg(const char *name, const char *ver, const char *desc)
{
prop_dictionary_t dict;
dict = prop_dictionary_create();
assert(dict != NULL);
prop_dictionary_set_cstring_nocopy(dict, "pkgname", name);
prop_dictionary_set_cstring_nocopy(dict, "version", ver);
prop_dictionary_set_cstring_nocopy(dict, "short_desc", desc);
return dict;
}
int
xbps_register_pkg(prop_dictionary_t pkgrd, const char *pkgname,
const char *version, const char *desc,
bool automatic)
{
prop_dictionary_t dict, pkgd;
prop_array_t array;
char *plist;
int rv = 0;
assert(pkgname != NULL);
assert(version != NULL);
assert(desc != NULL);
plist = xbps_append_full_path(true, NULL, XBPS_REGPKGDB);
if (plist == NULL)
return EINVAL;
dict = prop_dictionary_internalize_from_file(plist);
if (dict == NULL) {
/* No packages registered yet. */
dict = prop_dictionary_create();
if (dict == NULL) {
free(plist);
return ENOMEM;
}
array = prop_array_create();
if (array == NULL) {
rv = ENOMEM;
goto out;
}
pkgd = make_dict_from_pkg(pkgname, version, desc);
if (!xbps_add_obj_to_array(array, pkgd)) {
prop_object_release(array);
rv = EINVAL;
goto out;
}
prop_dictionary_set_bool(pkgd, "automatic-install",
automatic);
if (!xbps_add_obj_to_dict(dict, array, "packages")) {
prop_object_release(array);
rv = EINVAL;
goto out;
}
} else {
/* Check if package is already registered. */
pkgd = xbps_find_pkg_in_dict(dict, "packages", pkgname);
if (pkgd != NULL) {
rv = EEXIST;
goto out;
}
pkgd = make_dict_from_pkg(pkgname, version, desc);
array = prop_dictionary_get(dict, "packages");
if (array == NULL) {
prop_object_release(pkgd);
rv = ENOENT;
goto out;
}
prop_dictionary_set_bool(pkgd, "automatic-install",
automatic);
if (pkgrd && xbps_pkg_has_rundeps(pkgrd)) {
rv = xbps_requiredby_pkg_add(array, pkgrd);
if (rv != 0) {
prop_object_release(pkgd);
goto out;
}
}
if (!xbps_add_obj_to_array(array, pkgd)) {
prop_object_release(pkgd);
rv = EINVAL;
goto out;
}
}
if (!prop_dictionary_externalize_to_file(dict, plist))
rv = errno;
out:
prop_object_release(dict);
free(plist);
return rv;
}