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Initial import of xbps with code as August '09.

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--HG--
extra : convert_revision : juan%40xbps-20090817170720-amxxac4a2e8bza1j
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juan
2009-08-17 19:07:20 +02:00
commit 3f3b6d00dd
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275
bin/xbps-bin/check.c Normal file
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/*-
* Copyright (c) 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 <xbps_api.h>
#include "defs.h"
/*
* Checks package integrity of an installed package. This
* consists in four tasks:
*
* o Check for metadata files (files.plist and props.plist),
* we only check if the file exists and its dictionary can
* be externalized and is not empty.
* o Check for missing installed files.
* o Check the hash for all installed files, except
* configuration files (which is expected if they are modified).
* o Check for missing run time dependencies.
*
* If any of these checks fail, the package will change its
* state to 'broken'.
*/
int
xbps_check_pkg_integrity(const char *pkgname)
{
prop_dictionary_t pkgd, propsd, filesd;
prop_array_t array;
prop_object_t obj;
prop_object_iterator_t iter;
const char *rootdir, *file, *sha256, *reqpkg;
char *path;
int rv = 0;
bool files_broken = false, broken = false;
assert(pkgname != NULL);
rootdir = xbps_get_rootdir();
pkgd = xbps_find_pkg_installed_from_plist(pkgname);
if (pkgd == NULL) {
printf("Package %s is not installed.\n", pkgname);
return 0;
}
/*
* Check for props.plist metadata file.
*/
path = xbps_xasprintf("%s/%s/metadata/%s/%s", rootdir,
XBPS_META_PATH, pkgname, XBPS_PKGPROPS);
if (path == NULL) {
rv = errno;
goto out;
}
propsd = prop_dictionary_internalize_from_file(path);
free(path);
if (propsd == NULL) {
printf("%s: unexistent %s metadata file.\n", pkgname,
XBPS_PKGPROPS);
rv = errno;
broken = true;
goto out;
} else if (prop_object_type(propsd) != PROP_TYPE_DICTIONARY) {
printf("%s: invalid %s metadata file.\n", pkgname,
XBPS_PKGPROPS);
rv = EINVAL;
broken = true;
goto out1;
} else if (prop_dictionary_count(propsd) == 0) {
printf("%s: incomplete %s metadata file.\n", pkgname,
XBPS_PKGPROPS);
rv = EINVAL;
broken = true;
goto out1;
}
/*
* Check for files.plist metadata file.
*/
path = xbps_xasprintf("%s/%s/metadata/%s/%s", rootdir,
XBPS_META_PATH, pkgname, XBPS_PKGFILES);
if (path == NULL) {
rv = errno;
goto out1;
}
filesd = prop_dictionary_internalize_from_file(path);
free(path);
if (filesd == NULL) {
printf("%s: unexistent %s metadata file.\n", pkgname,
XBPS_PKGPROPS);
rv = ENOENT;
broken = true;
goto out1;
} else if (prop_object_type(filesd) != PROP_TYPE_DICTIONARY) {
printf("%s: invalid %s metadata file.\n", pkgname,
XBPS_PKGFILES);
rv = EINVAL;
broken = true;
goto out2;
} else if (prop_dictionary_count(filesd) == 0) {
printf("%s: incomplete %s metadata file.\n", pkgname,
XBPS_PKGFILES);
rv = EINVAL;
broken = true;
goto out2;
} else if (((array = prop_dictionary_get(filesd, "files")) == NULL) ||
((array = prop_dictionary_get(filesd, "links")) == NULL) ||
((array = prop_dictionary_get(filesd, "dirs")) == NULL)) {
printf("%s: incomplete %s metadata file.\n", pkgname,
XBPS_PKGFILES);
rv = EINVAL;
broken = true;
goto out2;
}
/*
* Check for missing files and its hash.
*/
array = prop_dictionary_get(filesd, "files");
if ((prop_object_type(array) == PROP_TYPE_ARRAY) &&
prop_array_count(array) > 0) {
iter = xbps_get_array_iter_from_dict(filesd, "files");
if (iter == NULL) {
rv = ENOMEM;
goto out2;
}
while ((obj = prop_object_iterator_next(iter))) {
prop_dictionary_get_cstring_nocopy(obj, "file", &file);
path = xbps_xasprintf("%s/%s", rootdir, file);
if (path == NULL) {
prop_object_iterator_release(iter);
rv = errno;
goto out2;
}
prop_dictionary_get_cstring_nocopy(obj,
"sha256", &sha256);
rv = xbps_check_file_hash(path, sha256);
switch (rv) {
case 0:
break;
case ENOENT:
printf("%s: unexistent file %s.\n",
pkgname, file);
files_broken = true;
broken = true;
break;
case ERANGE:
printf("%s: hash mismatch for %s.\n",
pkgname, file);
files_broken = true;
broken = true;
break;
default:
printf("%s: unexpected error for %s (%s)\n",
pkgname, file, strerror(rv));
break;
}
free(path);
}
prop_object_iterator_release(iter);
if (files_broken)
printf("%s: files check FAILED.\n", pkgname);
}
/*
* Check for missing configuration files.
*/
array = prop_dictionary_get(filesd, "conf_files");
if (array && prop_object_type(array) == PROP_TYPE_ARRAY &&
prop_array_count(array) > 0) {
iter = xbps_get_array_iter_from_dict(filesd, "conf_files");
if (iter == NULL) {
rv = ENOMEM;
goto out2;
}
while ((obj = prop_object_iterator_next(iter))) {
prop_dictionary_get_cstring_nocopy(obj, "file", &file);
path = xbps_xasprintf("%s/%s", rootdir, file);
if (path == NULL) {
prop_object_iterator_release(iter);
rv = ENOMEM;
goto out2;
}
if ((rv = access(path, R_OK)) == -1) {
if (errno == ENOENT) {
printf("%s: unexistent file %s\n",
pkgname, file);
broken = true;
} else
printf("%s: unexpected error for "
"%s (%s)\n", pkgname, file,
strerror(errno));
}
free(path);
}
prop_object_iterator_release(iter);
if (rv != 0)
printf("%s: configuration files check FAILED.\n",
pkgname);
}
/*
* Check for missing run time dependencies.
*/
if (xbps_pkg_has_rundeps(propsd)) {
iter = xbps_get_array_iter_from_dict(propsd, "run_depends");
if (iter == NULL) {
rv = ENOMEM;
goto out2;
}
while ((obj = prop_object_iterator_next(iter))) {
reqpkg = prop_string_cstring_nocopy(obj);
if (xbps_check_is_installed_pkg(reqpkg) < 0) {
rv = ENOENT;
printf("%s: dependency not satisfied: %s\n",
pkgname, reqpkg);
broken = true;
}
}
prop_object_iterator_release(iter);
if (rv == ENOENT)
printf("%s: run-time dependency check FAILED.\n",
pkgname);
}
out2:
prop_object_release(filesd);
out1:
prop_object_release(propsd);
out:
prop_object_release(pkgd);
if (broken) {
rv = xbps_set_pkg_state_installed(pkgname,
XBPS_PKG_STATE_BROKEN);
if (rv == 0)
printf("%s: changed package state to broken.\n",
pkgname);
else
printf("%s: can't change package state (%s).\n",
pkgname, strerror(rv));
}
xbps_release_regpkgdb_dict();
return rv;
}