140 lines
3.0 KiB
C
140 lines
3.0 KiB
C
/* audit.c - Alpine Package Keeper (APK)
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*
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* Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
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* Copyright (C) 2008 Timo Teräs <timo.teras@iki.fi>
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation. See http://www.gnu.org/ for details.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <dirent.h>
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#include <sys/stat.h>
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#include "apk_applet.h"
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#include "apk_database.h"
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struct audit_ctx {
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int (*action)(struct apk_database *db);
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};
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static int audit_directory(apk_hash_item item, void *ctx)
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{
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struct apk_db_dir *dbd = (struct apk_db_dir *) item;
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struct apk_db_file *dbf;
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struct apk_database *db = (struct apk_database *) ctx;
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struct dirent *de;
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struct apk_file_info fi;
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apk_blob_t bdir = APK_BLOB_PTR_LEN(dbd->name, dbd->namelen);
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char tmp[512], reason;
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DIR *dir;
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if (!(dbd->flags & APK_DBDIRF_PROTECTED))
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return 0;
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dir = opendir(dbd->name);
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if (dir == NULL)
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return 0;
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while ((de = readdir(dir)) != NULL) {
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if (strcmp(de->d_name, ".") == 0 ||
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strcmp(de->d_name, "..") == 0)
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continue;
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snprintf(tmp, sizeof(tmp), "%s/%s", dbd->name, de->d_name);
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if (apk_file_get_info(tmp, &fi) < 0)
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continue;
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if (S_ISDIR(fi.mode)) {
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if (apk_db_dir_query(db, APK_BLOB_STR(tmp)) != NULL)
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continue;
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reason = 'D';
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} else {
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dbf = apk_db_file_query(db, bdir, APK_BLOB_STR(de->d_name));
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if (dbf != NULL) {
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if (apk_blob_compare(APK_BLOB_BUF(fi.csum),
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APK_BLOB_BUF(dbf->csum)) == 0)
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continue;
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reason = 'U';
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} else {
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reason = 'A';
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}
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}
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if (apk_verbosity < 1)
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printf("%s\n", tmp);
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else
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printf("%c %s\n", reason, tmp);
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}
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closedir(dir);
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return 0;
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}
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static int audit_backup(struct apk_database *db)
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{
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fchdir(db->root_fd);
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return apk_hash_foreach(&db->installed.dirs, audit_directory, db);
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}
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static int audit_parse(void *ctx, int optch, int optindex, const char *optarg)
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{
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struct audit_ctx *actx = (struct audit_ctx *) ctx;
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switch (optch) {
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case 0x10000:
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actx->action = audit_backup;
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break;
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default:
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return -1;
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}
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return 0;
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}
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static int audit_main(void *ctx, int argc, char **argv)
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{
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struct audit_ctx *actx = (struct audit_ctx *) ctx;
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struct apk_database db;
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int r;
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if (actx->action == NULL) {
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apk_error("No audit action requested");
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return 2;
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}
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r = apk_db_open(&db, apk_root, APK_OPENF_READ);
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if (r != 0) {
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apk_error("APK database not present");
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return 1;
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}
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r = actx->action(&db);
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apk_db_close(&db);
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return r;
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}
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static struct apk_option audit_options[] = {
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{ 0x10000, "backup",
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"List all modified configuration files that need to be backed up" },
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};
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static struct apk_applet apk_audit = {
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.name = "audit",
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.help = "Audit the filesystem for changes compared to installed "
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"database.",
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.context_size = sizeof(struct audit_ctx),
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.num_options = ARRAY_SIZE(audit_options),
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.options = audit_options,
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.parse = audit_parse,
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.main = audit_main,
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};
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APK_DEFINE_APPLET(apk_audit);
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