Rename some files in the library to better describe what they do.
--HG-- rename : lib/config_files.c => lib/package_config_files.c rename : lib/configure.c => lib/package_configure.c rename : lib/orphans.c => lib/package_orphans.c rename : lib/purge.c => lib/package_purge.c rename : lib/register.c => lib/package_register.c rename : lib/remove.c => lib/package_remove.c rename : lib/remove_obsoletes.c => lib/package_remove_obsoletes.c rename : lib/requiredby.c => lib/package_requiredby.c rename : lib/state.c => lib/package_state.c rename : lib/unpack.c => lib/package_unpack.c
This commit is contained in:
Juan RP
225
lib/package_config_files.c
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225
lib/package_config_files.c
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@ -0,0 +1,225 @@
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/*-
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* Copyright (c) 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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int HIDDEN
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xbps_config_file_from_archive_entry(prop_dictionary_t d,
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struct archive_entry *entry,
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const char *pkgname,
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int *flags,
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bool *skip)
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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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const char *cffile, *sha256_new = NULL;
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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_zfile(buf);
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free(buf);
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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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if (!prop_dictionary_get_cstring_nocopy(obj2,
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"file", &cffile)) {
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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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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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prop_dictionary_get_cstring(obj2, "sha256",
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&sha256_orig);
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free(buf);
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break;
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}
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free(buf);
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buf = NULL;
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}
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prop_object_iterator_release(iter2);
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}
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prop_object_release(forigd);
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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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/*
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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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if (!prop_dictionary_get_cstring_nocopy(obj,
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"file", &cffile)) {
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prop_object_iterator_release(iter);
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return errno;
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}
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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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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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sha256_cur = xbps_get_file_hash(buf);
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free(buf);
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if (!prop_dictionary_get_cstring_nocopy(obj,
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"sha256", &sha256_new)) {
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rv = EINVAL;
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break;
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}
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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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(strcmp(sha256_orig, sha256_new) == 0) &&
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(strcmp(sha256_cur, sha256_new) == 0)) {
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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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(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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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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} 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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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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} 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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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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printf("Keeping modified file %s.\n", cffile);
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printf("Installing new version as %s.new.\n", cffile);
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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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out:
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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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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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