6010a24de6
The funcs xbps_pkg_name() and xbps_pkgpattern_name() were using malloc(3) to return the result, until now. They now have been changed to not allocate the result via malloc, the caller is responsible to provide a buffer at least of XBPS_NAME_SIZE (64). If for whatever reason the pkgname can't be guessed, returns false. This should avoid lots of small allocs around libxbps. New functions have the following prototype: bool xbps_pkg_name(char *dst, size_t len, const char *pkg) bool xbps_pkgpattern_name(char *dst, size_t len, const char *pkg) as suggested by @duncaen.
140 lines
3.9 KiB
C
140 lines
3.9 KiB
C
/*-
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* Copyright (c) 2009-2015 Juan Romero Pardines.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <stdio.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include <assert.h>
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#include <xbps.h>
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#include "defs.h"
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static int
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pkgdb_cb(struct xbps_handle *xhp UNUSED,
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xbps_object_t obj,
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const char *key UNUSED,
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void *arg,
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bool *done UNUSED)
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{
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const char *pkgver = NULL;
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char pkgname[XBPS_NAME_SIZE];
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int rv, *errors = (int *)arg;
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xbps_dictionary_get_cstring_nocopy(obj, "pkgver", &pkgver);
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if (xhp->flags & XBPS_FLAG_VERBOSE)
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printf("Checking %s ...\n", pkgver);
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if (!xbps_pkg_name(pkgname, sizeof(pkgname), pkgver)) {
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abort();
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}
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if ((rv = check_pkg_integrity(xhp, obj, pkgname)) != 0)
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*errors += 1;
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return 0;
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}
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int
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check_pkg_integrity_all(struct xbps_handle *xhp)
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{
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int errors = 0;
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xbps_pkgdb_foreach_cb_multi(xhp, pkgdb_cb, &errors);
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return errors ? -1 : 0;
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}
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int
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check_pkg_integrity(struct xbps_handle *xhp,
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xbps_dictionary_t pkgd,
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const char *pkgname)
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{
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xbps_dictionary_t opkgd, filesd;
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const char *sha256;
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char *buf;
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int rv = 0, errors = 0;
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filesd = opkgd = NULL;
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/* find real pkg by name */
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opkgd = pkgd;
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if (opkgd == NULL) {
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if (((opkgd = xbps_pkgdb_get_pkg(xhp, pkgname)) == NULL) &&
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((opkgd = xbps_pkgdb_get_virtualpkg(xhp, pkgname)) == NULL)) {
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printf("Package %s is not installed.\n", pkgname);
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return 0;
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}
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}
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/*
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* Check pkg files metadata signature.
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*/
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if (xbps_dictionary_get_cstring_nocopy(opkgd, "metafile-sha256", &sha256)) {
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buf = xbps_xasprintf("%s/.%s-files.plist",
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xhp->metadir, pkgname);
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assert(buf);
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filesd = xbps_plist_dictionary_from_file(xhp, buf);
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if (filesd == NULL) {
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fprintf(stderr, "%s: cannot read %s, ignoring...\n",
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pkgname, buf);
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free(buf);
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return -1;
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}
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rv = xbps_file_hash_check(buf, sha256);
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free(buf);
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if (rv == ENOENT) {
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xbps_dictionary_remove(opkgd, "metafile-sha256");
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fprintf(stderr, "%s: unexistent metafile, "
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"updating pkgdb.\n", pkgname);
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} else if (rv == ERANGE) {
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xbps_object_release(filesd);
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fprintf(stderr, "%s: metadata file has been "
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"modified!\n", pkgname);
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return 1;
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}
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}
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#define RUN_PKG_CHECK(x, name, arg) \
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do { \
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if ((rv = check_pkg_##name(x, pkgname, arg)) != 0) { \
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errors++; \
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} \
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} while (0)
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/* Execute pkg checks */
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RUN_PKG_CHECK(xhp, files, filesd);
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RUN_PKG_CHECK(xhp, symlinks, filesd);
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RUN_PKG_CHECK(xhp, rundeps, opkgd);
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RUN_PKG_CHECK(xhp, unneeded, opkgd);
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RUN_PKG_CHECK(xhp, alternatives, opkgd);
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if (filesd)
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xbps_object_release(filesd);
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#undef RUN_PKG_CHECK
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return errors ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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