created pacman - an Ubuntu/Debian package manager
This commit is contained in:
Andreas Steffen
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/*
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* Copyright (C) 2012 Andreas Steffen
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* HSR Hochschule fuer Technik Rapperswil
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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 as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#define _GNU_SOURCE
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#include <getopt.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <syslog.h>
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#include <library.h>
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#include <utils/debug.h>
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/**
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* global debug output variables
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*/
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static int debug_level = 1;
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static bool stderr_quiet = TRUE;
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/**
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* pacman dbg function
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*/
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static void pacman_dbg(debug_t group, level_t level, char *fmt, ...)
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{
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int priority = LOG_INFO;
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char buffer[8192];
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char *current = buffer, *next;
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va_list args;
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if (level <= debug_level)
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{
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if (!stderr_quiet)
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{
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va_start(args, fmt);
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vfprintf(stderr, fmt, args);
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fprintf(stderr, "\n");
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va_end(args);
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}
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/* write in memory buffer first */
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va_start(args, fmt);
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vsnprintf(buffer, sizeof(buffer), fmt, args);
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va_end(args);
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/* do a syslog with every line */
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while (current)
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{
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next = strchr(current, '\n');
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if (next)
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{
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*(next++) = '\0';
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}
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syslog(priority, "%s\n", current);
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current = next;
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}
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}
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}
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/**
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* atexit handler to close everything on shutdown
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*/
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static void cleanup(void)
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{
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closelog();
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library_deinit();
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}
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static void usage(void)
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{
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printf("Usage:\n"
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"ipsec pacman --file <filename> --package <name>\n");
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}
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/**
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* Process a package file and store updates in the database
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*/
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static void process_packages(char *filename, char *product)
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{
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char *uri, line[1024], *pos;
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int count = 0, errored = 0, vulnerable = 0;
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int new_packages = 0, new_versions = 0, updates = 0, reverted = 0;
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u_int32_t pid = 0;
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enumerator_t *e;
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database_t *db;
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FILE *file;
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/* opening package file */
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printf("loading\"%s\"\n", filename);
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file = fopen(filename, "r");
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if (!file)
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{
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fprintf(stderr, "could not open \"%s\"", filename);
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exit(EXIT_FAILURE);
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}
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/* connect package database */
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uri = lib->settings->get_str(lib->settings, "pacman.database", NULL);
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if (!uri)
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{
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fprintf(stderr, "database URI pacman.database not set\n");
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fclose(file);
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exit(EXIT_FAILURE);
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}
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db = lib->db->create(lib->db, uri);
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if (!db)
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{
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fprintf(stderr, "could not connect to database '%s'\n", uri);
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fclose(file);
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exit(EXIT_FAILURE);
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}
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/* check if product is already in database */
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e = db->query(db, "SELECT id FROM products WHERE name = ?",
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DB_TEXT, product, DB_INT);
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if (e)
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{
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if (!e->enumerate(e, &pid))
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{
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pid = 0;
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}
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e->destroy(e);
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}
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if (!pid)
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{
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if (db->execute(db, &pid, "INSERT INTO products (name) VALUES (?)",
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DB_TEXT, product) != 1)
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{
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fprintf(stderr, "could not store product '%s' to database\n",
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product);
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fclose(file);
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db->destroy(db);
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exit(EXIT_FAILURE);
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}
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}
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while (fgets(line, sizeof(line), file))
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{
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char *package, *version;
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bool security;
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int current_security;
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u_int32_t gid = 0, vid = 0;
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count++;
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if (count == 1 || count == 3)
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{
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printf("%s", line);
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}
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if (count < 7)
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{
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continue;
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}
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/* look for the package name */
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pos = strchr(line, ' ');
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if (!pos)
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{
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fprintf(stderr, "could not extract package name from '%.*s'",
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strlen(line)-1, line);
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errored++;
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continue;
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}
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*pos++ = '\0';
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package = line;
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version = "";
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/* check if package is already in database */
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e = db->query(db, "SELECT id FROM packages WHERE name = ?",
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DB_TEXT, package, DB_INT);
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if (e)
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{
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if (!e->enumerate(e, &gid))
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{
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gid = 0;
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}
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e->destroy(e);
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}
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if (!gid)
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{
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if (db->execute(db, &gid, "INSERT INTO packages (name) VALUES (?)",
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DB_TEXT, package) != 1)
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{
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fprintf(stderr, "could not store package '%s' to database\n",
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package);
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fclose(file);
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db->destroy(db);
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exit(EXIT_FAILURE);
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}
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new_packages++;
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}
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/* look for version string in parentheses */
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if (*pos == '(')
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{
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version = ++pos;
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pos = strchr(pos, ')');
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if (pos)
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{
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*pos++ = '\0';
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}
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else
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{
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fprintf(stderr, "could not extract package version from '%.*s'",
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strlen(line)-1, line);
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errored++;
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continue;
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}
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}
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security = (strstr(pos, "[security]") != NULL);
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if (security)
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{
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vulnerable++;
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}
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/* check if version is already in database */
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e = db->query(db, "SELECT id, security FROM versions "
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"WHERE release = ? AND package = ? AND product = ?",
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DB_TEXT, version, DB_INT, pid, DB_INT, gid,
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DB_INT, DB_INT);
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if (e)
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{
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if (!e->enumerate(e, &vid, ¤t_security))
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{
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vid = 0;
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}
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e->destroy(e);
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}
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if (!vid)
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{
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if (db->execute(db, &gid,
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"INSERT INTO versions (package, product, release, security) "
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"VALUES (?, ?, ?, ?)", DB_INT, gid, DB_INT, pid,
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DB_TEXT, version, DB_INT, security) != 1)
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{
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fprintf(stderr, "could not store version '%s' to database\n",
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version);
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fclose(file);
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db->destroy(db);
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exit(EXIT_FAILURE);
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}
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new_versions++;
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}
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else if (current_security != security)
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{
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printf("'%s' (%s) %s\n", package, version, security ? "[s]" : "");
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if (security)
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{
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if (db->execute(db, NULL,
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"UPDATE versions SET security = ? WHERE vid = ?",
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DB_INT, security, DB_INT, vid) < 0)
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{
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fprintf(stderr, "could not store update security field\n");
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fclose(file);
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db->destroy(db);
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exit(EXIT_FAILURE);
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}
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updates++;
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}
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else
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{
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reverted++;
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}
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}
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}
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fclose(file);
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db->destroy(db);
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printf("processed %d packages, %d vulnerable, %d errored, "
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"%d new packages, %d new versions, %d updates, %d reverted\n",
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count - 6, vulnerable, errored, new_packages, new_versions,
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updates, reverted);
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}
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static void do_args(int argc, char *argv[])
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{
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char *filename = NULL, *product = NULL;
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/* reinit getopt state */
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optind = 0;
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while (TRUE)
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{
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int c;
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struct option long_opts[] = {
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{ "help", no_argument, NULL, 'h' },
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{ "file", required_argument, NULL, 'f' },
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{ "product", required_argument, NULL, 'p' },
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{ 0,0,0,0 }
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};
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c = getopt_long(argc, argv, "", long_opts, NULL);
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switch (c)
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{
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case EOF:
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break;
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case 'h':
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usage();
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exit(EXIT_SUCCESS);
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case 'f':
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filename = optarg;
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continue;
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case 'p':
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product = optarg;
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continue;
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}
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break;
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}
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if (filename && product)
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{
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process_packages(filename, product);
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}
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else
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{
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usage();
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exit(EXIT_FAILURE);
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}
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}
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int main(int argc, char *argv[])
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{
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/* enable attest debugging hook */
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dbg = pacman_dbg;
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openlog("pacman", 0, LOG_DEBUG);
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atexit(cleanup);
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/* initialize library */
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if (!library_init(NULL))
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{
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exit(SS_RC_LIBSTRONGSWAN_INTEGRITY);
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}
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if (!lib->plugins->load(lib->plugins, NULL,
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lib->settings->get_str(lib->settings, "attest.load", "sqlite")))
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{
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exit(SS_RC_INITIALIZATION_FAILED);
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}
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do_args(argc, argv);
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exit(EXIT_SUCCESS);
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}
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