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