645 lines
17 KiB
C
645 lines
17 KiB
C
/*-
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* Copyright (c) 2008-2012 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/stat.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 <fcntl.h>
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#include <unistd.h>
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#include <libgen.h>
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#include "xbps_api_impl.h"
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static int
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set_extract_flags(void)
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{
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int flags;
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if (geteuid() == 0)
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flags = FEXTRACT_FLAGS;
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else
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flags = EXTRACT_FLAGS;
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return flags;
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}
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static int
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extract_metafile(struct archive *ar,
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struct archive_entry *entry,
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const char *file,
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const char *pkgver,
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bool exec,
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int flags)
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{
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const char *version;
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char *buf, *dirc, *dname, *pkgname;
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int rv;
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pkgname = xbps_pkg_name(pkgver);
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if (pkgname == NULL)
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return ENOMEM;
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version = xbps_pkg_version(pkgver);
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if (version == NULL) {
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free(pkgname);
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return ENOMEM;
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}
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buf = xbps_xasprintf("%s/metadata/%s/%s",
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XBPS_META_PATH, pkgname, file);
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if (buf == NULL) {
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free(pkgname);
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return ENOMEM;
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}
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archive_entry_set_pathname(entry, buf);
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dirc = strdup(buf);
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if (dirc == NULL) {
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free(buf);
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free(pkgname);
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return ENOMEM;
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}
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free(buf);
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dname = dirname(dirc);
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if (access(dname, X_OK) == -1) {
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if (xbps_mkpath(dname, 0755) == -1) {
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xbps_set_cb_state(XBPS_STATE_UNPACK_FAIL,
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errno, pkgname, version,
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"%s: [unpack] failed to create metadir `%s': %s",
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pkgver, dname, strerror(errno));
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free(dirc);
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free(pkgname);
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return errno;
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}
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}
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if (exec)
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archive_entry_set_perm(entry, 0750);
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if (archive_read_extract(ar, entry, flags) != 0) {
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rv = archive_errno(ar);
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xbps_set_cb_state(XBPS_STATE_UNPACK_FAIL,
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rv, pkgname, version,
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"%s: [unpack] failed to extract metafile `%s': %s",
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pkgver, file, strerror(rv));
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free(dirc);
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free(pkgname);
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return rv;
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}
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free(pkgname);
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free(dirc);
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return 0;
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}
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static int
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remove_metafile(const char *file, const char *pkgver)
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{
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const char *version;
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char *buf, *pkgname;
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pkgname = xbps_pkg_name(pkgver);
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if (pkgname == NULL)
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return ENOMEM;
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version = xbps_pkg_version(pkgver);
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if (version == NULL) {
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free(pkgname);
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return ENOMEM;
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}
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buf = xbps_xasprintf("%s/metadata/%s/%s",
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XBPS_META_PATH, pkgname, file);
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if (buf == NULL) {
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free(pkgname);
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return ENOMEM;
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}
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if (unlink(buf) == -1) {
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if (errno && errno != ENOENT) {
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xbps_set_cb_state(XBPS_STATE_UNPACK_FAIL,
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errno, pkgname, version,
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"%s: [unpack] failed to remove metafile `%s': %s",
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pkgver, file, strerror(errno));
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free(pkgname);
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free(buf);
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return errno;
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}
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}
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free(buf);
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free(pkgname);
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return 0;
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}
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static int
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unpack_archive(prop_dictionary_t pkg_repod, struct archive *ar)
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{
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prop_dictionary_t propsd = NULL, filesd = NULL, old_filesd = NULL;
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prop_array_t array;
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const struct xbps_handle *xhp = xbps_handle_get();
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const struct stat *entry_statp;
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struct stat st;
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struct xbps_unpack_cb_data *xucd = NULL;
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struct archive_entry *entry;
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size_t nmetadata = 0, entry_idx = 0;
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const char *entry_pname, *transact, *pkgname, *version, *pkgver, *fname;
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char *buf = NULL, *pkgfilesd = NULL;
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int rv, flags;
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bool preserve, update, conf_file, file_exists, skip_obsoletes;
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bool softreplace;
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assert(prop_object_type(pkg_repod) == PROP_TYPE_DICTIONARY);
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assert(ar != NULL);
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preserve = update = conf_file = file_exists = false;
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skip_obsoletes = softreplace = false;
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prop_dictionary_get_bool(pkg_repod, "preserve", &preserve);
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prop_dictionary_get_bool(pkg_repod, "skip-obsoletes", &skip_obsoletes);
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prop_dictionary_get_bool(pkg_repod, "softreplace", &softreplace);
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prop_dictionary_get_cstring_nocopy(pkg_repod,
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"transaction", &transact);
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prop_dictionary_get_cstring_nocopy(pkg_repod, "pkgname", &pkgname);
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prop_dictionary_get_cstring_nocopy(pkg_repod, "version", &version);
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prop_dictionary_get_cstring_nocopy(pkg_repod, "pkgver", &pkgver);
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prop_dictionary_get_cstring_nocopy(pkg_repod, "filename", &fname);
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if (xhp->unpack_cb != NULL) {
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/* initialize data for unpack cb */
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xucd = malloc(sizeof(*xucd));
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if (xucd == NULL)
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return ENOMEM;
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xucd->entry_extract_count = 0;
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xucd->entry_total_count = 0;
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}
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if (access(xhp->rootdir, R_OK) == -1) {
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if (errno != ENOENT) {
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rv = errno;
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goto out;
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}
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if (xbps_mkpath(xhp->rootdir, 0750) == -1) {
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rv = errno;
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goto out;
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}
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}
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if (chdir(xhp->rootdir) == -1) {
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xbps_set_cb_state(XBPS_STATE_UNPACK_FAIL,
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errno, pkgname, version,
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"%s: [unpack] failed to chdir to rootdir `%s': %s",
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pkgver, xhp->rootdir, strerror(errno));
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rv = errno;
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goto out;
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}
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if (strcmp(transact, "update") == 0)
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update = true;
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/*
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* While updating, always remove current INSTALL/REMOVE
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* scripts, because a package upgrade might not have those
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* anymore.
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*/
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if (update) {
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if ((rv = remove_metafile("INSTALL", pkgver)) != 0)
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goto out;
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if ((rv = remove_metafile("REMOVE", pkgver)) != 0)
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goto out;
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}
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/*
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* Process the archive files.
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*/
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while (archive_read_next_header(ar, &entry) == ARCHIVE_OK) {
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entry_statp = archive_entry_stat(entry);
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entry_pname = archive_entry_pathname(entry);
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flags = set_extract_flags();
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/*
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* Ignore directories from archive.
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*/
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if (S_ISDIR(entry_statp->st_mode)) {
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archive_read_data_skip(ar);
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continue;
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}
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/*
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* Prepare unpack callback ops.
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*/
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if (xucd != NULL) {
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xucd->pkgver = pkgver;
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xucd->entry = entry_pname;
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xucd->entry_size = archive_entry_size(entry);
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xucd->entry_is_conf = false;
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}
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if (strcmp("./INSTALL", entry_pname) == 0) {
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/*
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* Extract the INSTALL script first to execute
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* the pre install target.
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*/
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buf = xbps_xasprintf("%s/metadata/%s/INSTALL",
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XBPS_META_PATH, pkgname);
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if (buf == NULL) {
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rv = ENOMEM;
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goto out;
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}
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rv = extract_metafile(ar, entry, "INSTALL",
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pkgver, true, flags);
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if (rv != 0)
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goto out;
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rv = xbps_file_exec(buf, "pre",
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pkgname, version, update ? "yes" : "no",
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xhp->conffile, NULL);
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free(buf);
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buf = NULL;
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if (rv != 0) {
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xbps_set_cb_state(XBPS_STATE_UNPACK_FAIL,
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rv, pkgname, version,
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"%s: [unpack] INSTALL script failed "
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"to execute pre ACTION: %s",
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pkgver, strerror(rv));
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goto out;
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}
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nmetadata++;
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continue;
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} else if (strcmp("./REMOVE", entry_pname) == 0) {
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rv = extract_metafile(ar, entry, "REMOVE",
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pkgver, true, flags);
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if (rv != 0)
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goto out;
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nmetadata++;
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continue;
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} else if (strcmp("./files.plist", entry_pname) == 0) {
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/*
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* Internalize this entry into a prop_dictionary
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* to check for obsolete files if updating a package.
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* It will be extracted to disk at the end.
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*/
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filesd = xbps_dictionary_from_archive_entry(ar, entry);
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if (filesd == NULL) {
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rv = errno;
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goto out;
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}
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nmetadata++;
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continue;
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} else if (strcmp("./props.plist", entry_pname) == 0) {
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rv = extract_metafile(ar, entry, XBPS_PKGPROPS,
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pkgver, false, flags);
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if (rv != 0)
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goto out;
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propsd = xbps_dictionary_from_metadata_plist(
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pkgname, XBPS_PKGPROPS);
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if (propsd == NULL) {
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rv = errno;
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goto out;
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}
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nmetadata++;
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continue;
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}
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/*
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* If XBPS_PKGFILES or XBPS_PKGPROPS weren't found
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* in the archive at this phase, skip all data.
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*/
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if (propsd == NULL || filesd == NULL) {
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archive_read_data_skip(ar);
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/*
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* If we have processed 4 entries and the two
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* required metadata files weren't found, bail out.
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* This is not an XBPS binary package.
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*/
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if (entry_idx >= 3) {
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xbps_set_cb_state(XBPS_STATE_UNPACK_FAIL,
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ENODEV, pkgname, version,
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"%s: [unpack] invalid binary package `%s'.",
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pkgver, fname);
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rv = ENODEV;
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goto out;
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}
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entry_idx++;
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continue;
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}
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/*
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* Compute total entries in progress data, if set.
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* total_entries = files + conf_files + links.
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*/
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if (xucd != NULL) {
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xucd->entry_total_count = 0;
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array = prop_dictionary_get(filesd, "files");
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xucd->entry_total_count +=
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(ssize_t)prop_array_count(array);
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array = prop_dictionary_get(filesd, "conf_files");
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xucd->entry_total_count +=
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(ssize_t)prop_array_count(array);
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array = prop_dictionary_get(filesd, "links");
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xucd->entry_total_count +=
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(ssize_t)prop_array_count(array);
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}
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/*
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* Always check that extracted file exists and hash
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* doesn't match, in that case overwrite the file.
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* Otherwise skip extracting it.
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*/
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conf_file = false;
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file_exists = false;
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if (S_ISREG(entry_statp->st_mode)) {
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if (xbps_entry_is_a_conf_file(propsd, entry_pname))
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conf_file = true;
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if (stat(entry_pname, &st) == 0) {
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file_exists = true;
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rv = xbps_file_hash_check_dictionary(filesd,
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conf_file ? "conf_files" : "files",
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entry_pname);
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if (rv == -1) {
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/* error */
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xbps_dbg_printf("%s-%s: failed to check"
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" hash for `%s': %s\n", pkgname,
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version, entry_pname,
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strerror(errno));
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goto out;
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} else if (rv == 0) {
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/*
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* Always set entry perms in existing
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* file, even when hash is matched.
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*/
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if (chmod(entry_pname,
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entry_statp->st_mode) != 0) {
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xbps_dbg_printf("%s-%s: failed "
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"to set perms %s to %s: %s\n",
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pkgname, version,
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archive_entry_strmode(entry),
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entry_pname,
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strerror(errno));
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rv = EINVAL;
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goto out;
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}
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xbps_dbg_printf("%s-%s: entry %s perms "
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"to %s.\n", pkgname, version,
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entry_pname,
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archive_entry_strmode(entry));
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/*
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* hash match, skip extraction.
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*/
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xbps_dbg_printf("%s-%s: entry %s "
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"matches current SHA256, "
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"skipping...\n", pkgname,
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version, entry_pname);
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archive_read_data_skip(ar);
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continue;
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}
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}
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}
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if (!update && conf_file && file_exists) {
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/*
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* If installing new package preserve old configuration
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* file but renaming it to <file>.old.
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*/
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buf = xbps_xasprintf("%s.old", entry_pname);
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if (buf == NULL) {
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rv = ENOMEM;
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goto out;
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}
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(void)rename(entry_pname, buf);
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free(buf);
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buf = NULL;
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xbps_set_cb_state(XBPS_STATE_CONFIG_FILE, 0,
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pkgname, version,
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"Renamed old configuration file "
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"`%s' to `%s.old'.", entry_pname, entry_pname);
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} else if (update && conf_file && file_exists) {
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/*
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* Handle configuration files. Check if current entry is
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* a configuration file and take action if required. Skip
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* packages that don't have the "conf_files" array in
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* the XBPS_PKGPROPS dictionary.
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*/
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if (xucd != NULL)
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xucd->entry_is_conf = true;
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rv = xbps_entry_install_conf_file(filesd,
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entry, entry_pname, pkgname, version);
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if (rv == -1) {
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/* error */
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goto out;
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} else if (rv == 0) {
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/*
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* Keep current configuration file
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* as is now and pass to next entry.
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*/
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archive_read_data_skip(ar);
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continue;
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}
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}
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/*
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* Extract entry from archive.
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*/
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if (archive_read_extract(ar, entry, flags) != 0) {
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rv = archive_errno(ar);
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xbps_set_cb_state(XBPS_STATE_UNPACK_FAIL,
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rv, pkgname, version,
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"%s: [unpack] failed to extract file `%s': %s",
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pkgver, entry_pname, strerror(rv));
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}
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if (xucd != NULL) {
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xucd->entry_extract_count++;
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(*xhp->unpack_cb)(xucd, xhp->unpack_cb_data);
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}
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}
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/*
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* If there was any error extracting files from archive, error out.
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*/
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if ((rv = archive_errno(ar)) != 0) {
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xbps_set_cb_state(XBPS_STATE_UNPACK_FAIL,
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rv, pkgname, version,
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"%s: [unpack] error while extracting files from `%s': %s",
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pkgver, fname, strerror(rv));
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goto out;
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}
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/*
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* Skip checking for obsolete files on:
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* - New package installation without "softreplace" keyword.
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* - Package with "preserve" keyword.
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* - Package with "skip-obsoletes" keyword.
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*/
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pkgfilesd = xbps_xasprintf("%s/metadata/%s/%s",
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XBPS_META_PATH, pkgname, XBPS_PKGFILES);
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if (pkgfilesd == NULL) {
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rv = ENOMEM;
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goto out;
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}
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if (skip_obsoletes || preserve || (!softreplace && !update))
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goto out1;
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/*
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* Check for obsolete files on:
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* - Package upgrade.
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* - Package with "softreplace" keyword.
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*/
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old_filesd = prop_dictionary_internalize_from_zfile(pkgfilesd);
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if (prop_object_type(old_filesd) == PROP_TYPE_DICTIONARY) {
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rv = xbps_remove_obsoletes(pkgname, version,
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pkgver, old_filesd, filesd);
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prop_object_release(old_filesd);
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if (rv != 0) {
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rv = errno;
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goto out;
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}
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} else if (errno && errno != ENOENT) {
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rv = errno;
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goto out;
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}
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out1:
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/*
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* Create pkg metadata directory.
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*/
|
|
buf = xbps_xasprintf("%s/metadata/%s", XBPS_META_PATH, pkgname);
|
|
if (buf == NULL) {
|
|
rv = ENOMEM;
|
|
goto out;
|
|
}
|
|
if (xbps_mkpath(buf, 0755) == -1) {
|
|
xbps_set_cb_state(XBPS_STATE_UNPACK_FAIL,
|
|
errno, pkgname, version,
|
|
"%s: [unpack] failed to create pkg metadir `%s': %s",
|
|
buf, pkgver, strerror(errno));
|
|
rv = errno;
|
|
goto out;
|
|
}
|
|
/*
|
|
* Externalize XBPS_PKGFILES into pkg metadata directory.
|
|
*/
|
|
if (!prop_dictionary_externalize_to_zfile(filesd, pkgfilesd)) {
|
|
rv = errno;
|
|
xbps_set_cb_state(XBPS_STATE_UNPACK_FAIL,
|
|
errno, pkgname, version,
|
|
"%s: [unpack] failed to extract metadata file `%s': %s",
|
|
pkgver, XBPS_PKGFILES, strerror(errno));
|
|
goto out;
|
|
}
|
|
out:
|
|
if (xucd != NULL)
|
|
free(xucd);
|
|
if (pkgfilesd != NULL)
|
|
free(pkgfilesd);
|
|
if (buf != NULL)
|
|
free(buf);
|
|
if (prop_object_type(filesd) == PROP_TYPE_DICTIONARY)
|
|
prop_object_release(filesd);
|
|
if (prop_object_type(propsd) == PROP_TYPE_DICTIONARY)
|
|
prop_object_release(propsd);
|
|
|
|
return rv;
|
|
}
|
|
|
|
int HIDDEN
|
|
xbps_unpack_binary_pkg(prop_dictionary_t pkg_repod)
|
|
{
|
|
struct archive *ar = NULL;
|
|
const char *pkgname, *version, *repoloc, *pkgver, *fname;
|
|
char *bpkg = NULL;
|
|
int rv = 0;
|
|
|
|
assert(prop_object_type(pkg_repod) == PROP_TYPE_DICTIONARY);
|
|
|
|
prop_dictionary_get_cstring_nocopy(pkg_repod, "pkgname", &pkgname);
|
|
prop_dictionary_get_cstring_nocopy(pkg_repod, "version", &version);
|
|
prop_dictionary_get_cstring_nocopy(pkg_repod, "pkgver", &pkgver);
|
|
prop_dictionary_get_cstring_nocopy(pkg_repod, "repository", &repoloc);
|
|
prop_dictionary_get_cstring_nocopy(pkg_repod, "filename", &fname);
|
|
|
|
xbps_set_cb_state(XBPS_STATE_UNPACK, 0, pkgname, version, NULL);
|
|
|
|
bpkg = xbps_path_from_repository_uri(pkg_repod, repoloc);
|
|
if (bpkg == NULL) {
|
|
xbps_set_cb_state(XBPS_STATE_UNPACK_FAIL,
|
|
errno, pkgname, version,
|
|
"%s: [unpack] cannot determine binary package "
|
|
"file for `%s': %s", pkgver, fname, strerror(errno));
|
|
return errno;
|
|
}
|
|
|
|
if ((ar = archive_read_new()) == NULL) {
|
|
free(bpkg);
|
|
return ENOMEM;
|
|
}
|
|
/*
|
|
* Enable support for tar format and gzip/bzip2/lzma compression methods.
|
|
*/
|
|
archive_read_support_compression_gzip(ar);
|
|
archive_read_support_compression_bzip2(ar);
|
|
archive_read_support_compression_xz(ar);
|
|
archive_read_support_format_tar(ar);
|
|
|
|
if (archive_read_open_filename(ar, bpkg, ARCHIVE_READ_BLOCKSIZE) != 0) {
|
|
rv = archive_errno(ar);
|
|
xbps_set_cb_state(XBPS_STATE_UNPACK_FAIL,
|
|
rv, pkgname, version,
|
|
"%s: [unpack] failed to open binary package `%s': %s",
|
|
pkgver, fname, strerror(rv));
|
|
free(bpkg);
|
|
archive_read_finish(ar);
|
|
return rv;
|
|
}
|
|
free(bpkg);
|
|
|
|
/*
|
|
* Set package state to half-unpacked.
|
|
*/
|
|
if ((rv = xbps_set_pkg_state_installed(pkgname, version,
|
|
XBPS_PKG_STATE_HALF_UNPACKED)) != 0) {
|
|
xbps_set_cb_state(XBPS_STATE_UNPACK_FAIL,
|
|
rv, pkgname, version,
|
|
"%s: [unpack] failed to set state to half-unpacked: %s",
|
|
pkgver, strerror(rv));
|
|
goto out;
|
|
}
|
|
/*
|
|
* Extract archive files.
|
|
*/
|
|
rv = unpack_archive(pkg_repod, ar);
|
|
if (rv != 0) {
|
|
xbps_set_cb_state(XBPS_STATE_UNPACK_FAIL,
|
|
rv, pkgname, version,
|
|
"%s: [unpack] failed to unpack files from archive: %s",
|
|
pkgver, strerror(rv));
|
|
goto out;
|
|
}
|
|
/*
|
|
* Set package state to unpacked.
|
|
*/
|
|
if ((rv = xbps_set_pkg_state_installed(pkgname, version,
|
|
XBPS_PKG_STATE_UNPACKED)) != 0) {
|
|
xbps_set_cb_state(XBPS_STATE_UNPACK_FAIL,
|
|
rv, pkgname, version,
|
|
"%s: [unpack] failed to set state to unpacked: %s",
|
|
pkgver, strerror(rv));
|
|
}
|
|
out:
|
|
if (ar)
|
|
archive_read_finish(ar);
|
|
|
|
return rv;
|
|
}
|