mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-12-06 19:41:15 +01:00
Nick Mathewson
152 lines
3.5 KiB
C
152 lines
3.5 KiB
C
/* Copyright (c) 2003, Roger Dingledine
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* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
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* Copyright (c) 2007-2018, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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/**
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* \file util.c
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* \brief Common functions for strings, IO, network, data structures,
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* process control.
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**/
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#include "orconfig.h"
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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#define UTIL_PRIVATE
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#include "common/util.h"
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#include "lib/log/torlog.h"
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#include "lib/crypt_ops/crypto_digest.h"
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#include "lib/cc/torint.h"
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#include "lib/container/smartlist.h"
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#include "lib/fdio/fdio.h"
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#include "lib/net/address.h"
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#include "lib/sandbox/sandbox.h"
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#include "lib/err/backtrace.h"
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#include "lib/process/waitpid.h"
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#include "lib/encoding/binascii.h"
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#ifdef _WIN32
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#include <io.h>
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#include <direct.h>
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#include <process.h>
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#include <tchar.h>
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#include <winbase.h>
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#else /* !(defined(_WIN32)) */
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#include <dirent.h>
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#include <pwd.h>
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#include <grp.h>
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#endif /* defined(_WIN32) */
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/* math.h needs this on Linux */
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#ifndef _USE_ISOC99_
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#define _USE_ISOC99_ 1
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#endif
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#include <math.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <signal.h>
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#ifdef HAVE_ARPA_INET_H
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#include <arpa/inet.h>
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#endif
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#ifdef HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_SYS_STAT_H
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#include <sys/stat.h>
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#endif
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#ifdef HAVE_SYS_FCNTL_H
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#include <sys/fcntl.h>
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#endif
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#ifdef HAVE_TIME_H
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#include <time.h>
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#endif
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#ifdef HAVE_MALLOC_MALLOC_H
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#include <malloc/malloc.h>
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#endif
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#ifdef HAVE_MALLOC_H
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#if !defined(OpenBSD) && !defined(__FreeBSD__)
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/* OpenBSD has a malloc.h, but for our purposes, it only exists in order to
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* scold us for being so stupid as to autodetect its presence. To be fair,
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* they've done this since 1996, when autoconf was only 5 years old. */
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#include <malloc.h>
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#endif /* !defined(OpenBSD) && !defined(__FreeBSD__) */
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#endif /* defined(HAVE_MALLOC_H) */
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#ifdef HAVE_MALLOC_NP_H
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#include <malloc_np.h>
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#endif
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#ifdef HAVE_SYS_WAIT_H
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#include <sys/wait.h>
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#endif
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#if defined(HAVE_SYS_PRCTL_H) && defined(__linux__)
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#include <sys/prctl.h>
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#endif
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/* =====
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* Memory management
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* ===== */
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DISABLE_GCC_WARNING(aggregate-return)
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/** Call the platform malloc info function, and dump the results to the log at
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* level <b>severity</b>. If no such function exists, do nothing. */
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void
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tor_log_mallinfo(int severity)
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{
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#ifdef HAVE_MALLINFO
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struct mallinfo mi;
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memset(&mi, 0, sizeof(mi));
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mi = mallinfo();
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tor_log(severity, LD_MM,
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"mallinfo() said: arena=%d, ordblks=%d, smblks=%d, hblks=%d, "
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"hblkhd=%d, usmblks=%d, fsmblks=%d, uordblks=%d, fordblks=%d, "
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"keepcost=%d",
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mi.arena, mi.ordblks, mi.smblks, mi.hblks,
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mi.hblkhd, mi.usmblks, mi.fsmblks, mi.uordblks, mi.fordblks,
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mi.keepcost);
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#else /* !(defined(HAVE_MALLINFO)) */
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(void)severity;
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#endif /* defined(HAVE_MALLINFO) */
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}
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ENABLE_GCC_WARNING(aggregate-return)
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/* =====
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* Math
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* ===== */
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/* =====
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* String manipulation
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* ===== */
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/* =====
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* Time
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* ===== */
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#ifdef _WIN32
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HANDLE
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load_windows_system_library(const TCHAR *library_name)
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{
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TCHAR path[MAX_PATH];
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unsigned n;
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n = GetSystemDirectory(path, MAX_PATH);
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if (n == 0 || n + _tcslen(library_name) + 2 >= MAX_PATH)
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return 0;
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_tcscat(path, TEXT("\\"));
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_tcscat(path, library_name);
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return LoadLibrary(path);
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}
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#endif /* defined(_WIN32) */
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