2009-08-17 22:37:20 +05:30
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/*-
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* Copyright (c) 2008-2009 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 <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 <xbps_api.h>
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static int unpack_archive_fini(struct archive *, prop_dictionary_t, bool);
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2009-09-30 21:59:21 +05:30
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static void set_extract_flags(int *);
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2009-08-17 22:37:20 +05:30
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int
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xbps_unpack_binary_pkg(prop_dictionary_t pkg, bool essential)
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{
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prop_string_t filename, repoloc, arch;
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struct archive *ar;
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const char *pkgname;
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char *binfile;
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int pkg_fd, rv = 0;
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assert(pkg != NULL);
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/*
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* Append filename to the full path for binary pkg.
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*/
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prop_dictionary_get_cstring_nocopy(pkg, "pkgname", &pkgname);
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filename = prop_dictionary_get(pkg, "filename");
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arch = prop_dictionary_get(pkg, "architecture");
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repoloc = prop_dictionary_get(pkg, "repository");
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if (filename == NULL || arch == NULL || repoloc == NULL)
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return ENOTSUP;
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binfile = xbps_xasprintf("%s/%s/%s",
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prop_string_cstring_nocopy(repoloc),
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prop_string_cstring_nocopy(arch),
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prop_string_cstring_nocopy(filename));
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if (binfile == NULL)
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return EINVAL;
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if ((pkg_fd = open(binfile, O_RDONLY)) == -1) {
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rv = errno;
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goto out;
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}
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ar = archive_read_new();
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if (ar == NULL) {
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rv = ENOMEM;
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goto out2;
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}
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/*
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* Enable support for tar format and all compression methods.
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*/
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archive_read_support_compression_all(ar);
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archive_read_support_format_tar(ar);
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if ((rv = archive_read_open_fd(ar, pkg_fd,
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ARCHIVE_READ_BLOCKSIZE)) != 0)
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goto out3;
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rv = unpack_archive_fini(ar, pkg, essential);
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/*
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* If installation of package was successful, make sure the package
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* is really on storage (if possible).
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*/
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if (rv == 0) {
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2009-08-19 02:20:29 +05:30
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if (fsync(pkg_fd) == -1) {
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rv = errno;
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goto out3;
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}
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2009-08-17 22:37:20 +05:30
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/*
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* Set package state to unpacked.
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*/
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rv = xbps_set_pkg_state_installed(pkgname,
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XBPS_PKG_STATE_UNPACKED);
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}
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2009-08-19 02:20:29 +05:30
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out3:
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archive_read_finish(ar);
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out2:
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(void)close(pkg_fd);
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out:
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free(binfile);
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2009-08-17 22:37:20 +05:30
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return rv;
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}
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/*
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* Flags for extracting files in binary packages. If a package
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* is marked as "essential", its files will be overwritten and then
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* the old and new dictionaries are compared to find out if there
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* are some files that were in the old package that should be removed.
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*/
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#define EXTRACT_FLAGS ARCHIVE_EXTRACT_SECURE_NODOTDOT | \
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2009-10-21 21:46:17 +05:30
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ARCHIVE_EXTRACT_SECURE_SYMLINKS | \
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ARCHIVE_EXTRACT_NO_OVERWRITE | \
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ARCHIVE_EXTRACT_NO_OVERWRITE_NEWER
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2009-08-17 22:37:20 +05:30
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#define FEXTRACT_FLAGS ARCHIVE_EXTRACT_OWNER | ARCHIVE_EXTRACT_PERM | \
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ARCHIVE_EXTRACT_TIME | EXTRACT_FLAGS
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static void
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2009-09-30 21:59:21 +05:30
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set_extract_flags(int *flags)
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2009-08-17 22:37:20 +05:30
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{
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2009-10-21 21:46:17 +05:30
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*flags = 0;
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2009-08-17 22:37:20 +05:30
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if (getuid() == 0)
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2009-09-30 21:59:21 +05:30
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*flags = FEXTRACT_FLAGS;
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2009-08-17 22:37:20 +05:30
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else
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2009-09-30 21:59:21 +05:30
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*flags = EXTRACT_FLAGS;
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2009-08-17 22:37:20 +05:30
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}
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static int
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install_config_file(prop_dictionary_t d, struct archive_entry *entry,
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2009-10-21 21:46:17 +05:30
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const char *pkgname, int *flags, bool *skip)
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2009-08-17 22:37:20 +05:30
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{
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prop_dictionary_t forigd;
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prop_object_t obj, obj2;
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prop_object_iterator_t iter, iter2;
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2009-10-21 21:46:17 +05:30
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const char *cffile, *sha256_new = NULL;
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2009-08-17 22:37:20 +05:30
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char *buf, *sha256_cur = NULL, *sha256_orig = NULL;
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int rv = 0;
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bool install_new = false;
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if (d == NULL)
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return 0;
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iter = xbps_get_array_iter_from_dict(d, "conf_files");
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if (iter == NULL)
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return 0;
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/*
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* Get original hash for the file from current
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* installed package.
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*/
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buf = xbps_xasprintf(".%s/metadata/%s/%s", XBPS_META_PATH,
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pkgname, XBPS_PKGFILES);
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if (buf == NULL)
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return errno;
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forigd = prop_dictionary_internalize_from_file(buf);
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free(buf);
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2009-10-10 12:14:37 +05:30
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if (forigd == NULL) {
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install_new = true;
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goto out;
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}
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iter2 = xbps_get_array_iter_from_dict(forigd, "conf_files");
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if (iter2 != NULL) {
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while ((obj2 = prop_object_iterator_next(iter2))) {
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prop_dictionary_get_cstring_nocopy(obj2,
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"file", &cffile);
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2009-10-21 21:46:17 +05:30
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buf = xbps_xasprintf(".%s", cffile);
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if (buf == NULL) {
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prop_object_iterator_release(iter2);
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rv = errno;
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goto out;
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}
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if (strcmp(archive_entry_pathname(entry), buf) == 0) {
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2009-10-10 12:14:37 +05:30
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prop_dictionary_get_cstring(obj2, "sha256",
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&sha256_orig);
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2009-10-21 21:46:17 +05:30
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free(buf);
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2009-10-10 12:14:37 +05:30
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break;
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2009-08-17 22:37:20 +05:30
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}
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2009-10-21 21:46:17 +05:30
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free(buf);
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buf = NULL;
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2009-08-17 22:37:20 +05:30
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}
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2009-10-10 12:14:37 +05:30
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prop_object_iterator_release(iter2);
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2009-08-17 22:37:20 +05:30
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}
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2009-10-10 12:14:37 +05:30
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prop_object_release(forigd);
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2009-10-21 21:46:17 +05:30
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/*
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* First case: original hash not found, install new file.
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*/
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if (sha256_orig == NULL) {
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install_new = true;
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goto out;
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}
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2009-08-17 22:37:20 +05:30
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/*
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* Compare original, installed and new hash for current file.
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*/
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while ((obj = prop_object_iterator_next(iter))) {
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prop_dictionary_get_cstring_nocopy(obj, "file", &cffile);
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buf = xbps_xasprintf(".%s", cffile);
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if (buf == NULL) {
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prop_object_iterator_release(iter);
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return errno;
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}
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2009-10-21 21:46:17 +05:30
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if (strcmp(archive_entry_pathname(entry), buf)) {
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free(buf);
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buf = NULL;
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continue;
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}
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2009-08-17 22:37:20 +05:30
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sha256_cur = xbps_get_file_hash(buf);
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free(buf);
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2009-10-21 21:46:17 +05:30
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prop_dictionary_get_cstring_nocopy(obj, "sha256", &sha256_new);
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if (sha256_new == NULL) {
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rv = EINVAL;
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break;
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}
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2009-08-17 22:37:20 +05:30
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if (sha256_cur == NULL) {
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if (errno == ENOENT) {
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/*
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* File not installed, install new one.
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*/
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install_new = true;
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break;
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} else {
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rv = errno;
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break;
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}
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}
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/*
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* Orig = X, Curr = X, New = X
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*
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* Install new file.
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*/
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if ((strcmp(sha256_orig, sha256_cur) == 0) &&
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2009-10-21 21:46:17 +05:30
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(strcmp(sha256_orig, sha256_new) == 0) &&
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(strcmp(sha256_cur, sha256_new) == 0)) {
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2009-08-17 22:37:20 +05:30
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install_new = true;
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break;
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/*
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* Orig = X, Curr = X, New = Y
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*
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* Install new file.
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*/
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} else if ((strcmp(sha256_orig, sha256_cur) == 0) &&
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2009-10-21 21:46:17 +05:30
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(strcmp(sha256_orig, sha256_new)) &&
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(strcmp(sha256_cur, sha256_new))) {
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printf("Updating %s file with new version.\n",
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cffile);
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2009-08-17 22:37:20 +05:30
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install_new = true;
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break;
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/*
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* Orig = X, Curr = Y, New = X
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*
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* Keep current file as is.
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*/
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2009-10-21 21:46:17 +05:30
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} else if ((strcmp(sha256_orig, sha256_new) == 0) &&
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(strcmp(sha256_cur, sha256_new)) &&
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(strcmp(sha256_orig, sha256_cur))) {
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printf("Keeping modified file %s.\n", cffile);
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*skip = true;
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2009-08-17 22:37:20 +05:30
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break;
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/*
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* Orig = X, Curr = Y, New = Y
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*
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* Install new file.
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*/
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2009-10-21 21:46:17 +05:30
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} else if ((strcmp(sha256_cur, sha256_new) == 0) &&
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(strcmp(sha256_orig, sha256_new)) &&
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(strcmp(sha256_orig, sha256_cur))) {
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2009-08-17 22:37:20 +05:30
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install_new = true;
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break;
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/*
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* Orig = X, Curr = Y, New = Z
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*
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* Install new file as file.new.
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*/
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} else if ((strcmp(sha256_orig, sha256_cur)) &&
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(strcmp(sha256_cur, sha256_new)) &&
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(strcmp(sha256_orig, sha256_new))) {
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buf = xbps_xasprintf(".%s.new", cffile);
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if (buf == NULL) {
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rv = errno;
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break;
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}
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2009-10-21 21:46:17 +05:30
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printf("Keeping modified file %s.\n", cffile);
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printf("Installing new version as %s.new.\n", cffile);
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2009-08-17 22:37:20 +05:30
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install_new = true;
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archive_entry_set_pathname(entry, buf);
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free(buf);
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break;
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}
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}
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2009-10-10 12:14:37 +05:30
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out:
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2009-10-21 21:46:17 +05:30
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if (install_new) {
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*flags &= ~ARCHIVE_EXTRACT_NO_OVERWRITE;
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*flags &= ~ARCHIVE_EXTRACT_NO_OVERWRITE_NEWER;
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}
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2009-08-17 22:37:20 +05:30
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if (sha256_orig)
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free(sha256_orig);
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if (sha256_cur)
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free(sha256_cur);
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prop_object_iterator_release(iter);
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return rv;
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}
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/*
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* TODO: remove printfs and return appropiate errors to be interpreted by
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* the consumer.
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*/
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static int
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unpack_archive_fini(struct archive *ar, prop_dictionary_t pkg,
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bool essential)
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{
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prop_dictionary_t filesd;
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struct archive_entry *entry;
|
2009-10-21 21:46:17 +05:30
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const char *pkgname, *version, *rootdir, *entry_str;
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2009-08-17 22:37:20 +05:30
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char *buf, *buf2;
|
2009-09-30 21:59:21 +05:30
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int rv = 0, flags, lflags;
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2009-08-17 22:37:20 +05:30
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bool actgt = false, skip_entry = false;
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assert(ar != NULL);
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assert(pkg != NULL);
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rootdir = xbps_get_rootdir();
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flags = xbps_get_flags();
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if (strcmp(rootdir, "") == 0)
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rootdir = "/";
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if (chdir(rootdir) == -1)
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return errno;
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|
|
|
|
|
|
prop_dictionary_get_cstring_nocopy(pkg, "pkgname", &pkgname);
|
|
|
|
prop_dictionary_get_cstring_nocopy(pkg, "version", &version);
|
|
|
|
|
|
|
|
while (archive_read_next_header(ar, &entry) == ARCHIVE_OK) {
|
2009-10-21 21:46:17 +05:30
|
|
|
entry_str = archive_entry_pathname(entry);
|
2009-09-30 21:59:21 +05:30
|
|
|
set_extract_flags(&lflags);
|
2009-10-21 21:46:17 +05:30
|
|
|
if (((strcmp("./INSTALL", entry_str)) == 0) ||
|
|
|
|
((strcmp("./REMOVE", entry_str)) == 0) ||
|
2009-10-21 21:57:18 +05:30
|
|
|
((strcmp("./files.plist", entry_str)) == 0) ||
|
2009-10-21 21:46:17 +05:30
|
|
|
((strcmp("./props.plist", entry_str)) == 0) || essential) {
|
|
|
|
/*
|
|
|
|
* Always overwrite files in essential packages,
|
|
|
|
* and metadata files.
|
|
|
|
*/
|
|
|
|
lflags &= ~ARCHIVE_EXTRACT_NO_OVERWRITE;
|
|
|
|
lflags &= ~ARCHIVE_EXTRACT_NO_OVERWRITE_NEWER;
|
2009-08-17 22:37:20 +05:30
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Run the pre INSTALL action if the file is there.
|
|
|
|
*/
|
2009-10-21 21:46:17 +05:30
|
|
|
if (strcmp("./INSTALL", entry_str) == 0) {
|
2009-08-17 22:37:20 +05:30
|
|
|
buf = xbps_xasprintf(".%s/metadata/%s/INSTALL",
|
|
|
|
XBPS_META_PATH, pkgname);
|
|
|
|
if (buf == NULL)
|
|
|
|
return errno;
|
|
|
|
|
|
|
|
actgt = true;
|
|
|
|
archive_entry_set_pathname(entry, buf);
|
|
|
|
|
2009-09-30 21:59:21 +05:30
|
|
|
if (archive_read_extract(ar, entry, lflags) != 0) {
|
2009-08-17 22:37:20 +05:30
|
|
|
if ((rv = archive_errno(ar)) != EEXIST) {
|
|
|
|
free(buf);
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((rv = xbps_file_chdir_exec(rootdir, buf, "pre",
|
|
|
|
pkgname, version, NULL)) != 0) {
|
|
|
|
free(buf);
|
|
|
|
printf("%s: preinst action target error %s\n",
|
|
|
|
pkgname, strerror(errno));
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
/* pass to the next entry if successful */
|
|
|
|
free(buf);
|
|
|
|
continue;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Unpack metadata files in final directory.
|
|
|
|
*/
|
2009-10-21 21:46:17 +05:30
|
|
|
} else if (strcmp("./REMOVE", entry_str) == 0) {
|
2009-08-17 22:37:20 +05:30
|
|
|
buf2 = xbps_xasprintf(".%s/metadata/%s/REMOVE",
|
|
|
|
XBPS_META_PATH, pkgname);
|
|
|
|
if (buf2 == NULL)
|
|
|
|
return errno;
|
|
|
|
archive_entry_set_pathname(entry, buf2);
|
|
|
|
free(buf2);
|
|
|
|
buf2 = NULL;
|
2009-10-21 21:46:17 +05:30
|
|
|
} else if (strcmp("./files.plist", entry_str) == 0) {
|
2009-08-17 22:37:20 +05:30
|
|
|
/*
|
|
|
|
* Now we have a dictionary from the entry
|
|
|
|
* in memory. Will be written to disk later, when
|
|
|
|
* all files are extracted.
|
|
|
|
*/
|
|
|
|
filesd = xbps_read_dict_from_archive_entry(ar, entry);
|
|
|
|
if (filesd == NULL)
|
|
|
|
return errno;
|
|
|
|
|
|
|
|
/* Pass to next entry */
|
|
|
|
continue;
|
|
|
|
|
2009-10-21 21:46:17 +05:30
|
|
|
} else if (strcmp("./props.plist", entry_str) == 0) {
|
2009-08-17 22:37:20 +05:30
|
|
|
buf2 = xbps_xasprintf(".%s/metadata/%s/props.plist",
|
|
|
|
XBPS_META_PATH, pkgname);
|
|
|
|
if (buf2 == NULL)
|
|
|
|
return errno;
|
|
|
|
archive_entry_set_pathname(entry, buf2);
|
|
|
|
free(buf2);
|
2009-10-21 21:46:17 +05:30
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* Handle configuration files.
|
|
|
|
*/
|
|
|
|
if ((rv = install_config_file(filesd, entry, pkgname,
|
|
|
|
&lflags, &skip_entry)) != 0) {
|
|
|
|
prop_object_release(filesd);
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
if (skip_entry) {
|
|
|
|
archive_read_data_skip(ar);
|
|
|
|
skip_entry = false;
|
|
|
|
continue;
|
|
|
|
}
|
2009-08-17 22:37:20 +05:30
|
|
|
}
|
2009-10-21 21:46:17 +05:30
|
|
|
|
2009-08-17 22:37:20 +05:30
|
|
|
/*
|
|
|
|
* Extract entry from archive.
|
|
|
|
*/
|
2009-09-30 21:59:21 +05:30
|
|
|
if (archive_read_extract(ar, entry, lflags) != 0) {
|
2009-08-17 22:37:20 +05:30
|
|
|
rv = archive_errno(ar);
|
|
|
|
if (rv != EEXIST) {
|
|
|
|
printf("ERROR: %s...exiting!\n",
|
|
|
|
archive_error_string(ar));
|
|
|
|
return rv;;
|
|
|
|
} else if (rv == EEXIST) {
|
|
|
|
if (flags & XBPS_FLAG_VERBOSE) {
|
|
|
|
printf("WARNING: ignoring existent "
|
|
|
|
"path: %s\n",
|
|
|
|
archive_entry_pathname(entry));
|
|
|
|
}
|
|
|
|
rv = 0;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (flags & XBPS_FLAG_VERBOSE)
|
|
|
|
printf(" %s\n", archive_entry_pathname(entry));
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((rv = archive_errno(ar)) == 0) {
|
|
|
|
/*
|
|
|
|
* Now that all files were successfully unpacked, we
|
|
|
|
* can safely externalize files.plist because the path
|
|
|
|
* is reachable.
|
|
|
|
*/
|
|
|
|
buf2 = xbps_xasprintf(".%s/metadata/%s/files.plist",
|
|
|
|
XBPS_META_PATH, pkgname);
|
|
|
|
if (!prop_dictionary_externalize_to_file(filesd, buf2)) {
|
|
|
|
prop_object_release(filesd);
|
|
|
|
free(buf2);
|
|
|
|
return errno;
|
|
|
|
}
|
|
|
|
free(buf2);
|
|
|
|
}
|
|
|
|
prop_object_release(filesd);
|
|
|
|
|
|
|
|
return rv;
|
|
|
|
}
|