mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-11 13:43:47 +01:00
625 lines
19 KiB
C
625 lines
19 KiB
C
/* Copyright (c) 2003-2004, Roger Dingledine
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* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
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* Copyright (c) 2007-2010, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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#ifndef _TOR_COMPAT_H
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#define _TOR_COMPAT_H
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#include "orconfig.h"
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#include "torint.h"
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#ifdef MS_WINDOWS
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#define WIN32_WINNT 0x400
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#define _WIN32_WINNT 0x400
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#define WIN32_LEAN_AND_MEAN
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#if defined(_MSC_VER) && (_MSC_VER < 1300)
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#include <winsock.h>
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#else
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#endif
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#endif
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.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_TIME_H
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#include <time.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#ifdef HAVE_PTHREAD_H
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#include <pthread.h>
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#endif
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#include <stdarg.h>
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#ifdef HAVE_SYS_RESOURCE_H
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#include <sys/resource.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_TYPES_H
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#include <sys/types.h>
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#endif
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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_NETINET6_IN6_H
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#include <netinet6/in6.h>
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#endif
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#if defined (WINCE)
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#include <fcntl.h>
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#include <io.h>
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#include <math.h>
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#include <projects.h>
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#define snprintf _snprintf
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/* this is not exported as W .... */
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#define SHGetPathFromIDListW SHGetPathFromIDList
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/* wcecompat has vasprintf */
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#define HAVE_VASPRINTF
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/* no service here */
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#ifdef NT_SERVICE
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#undef NT_SERVICE
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#endif
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#endif // WINCE
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#ifndef NULL_REP_IS_ZERO_BYTES
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#error "It seems your platform does not represent NULL as zero. We can't cope."
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#endif
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#if 'a'!=97 || 'z'!=122 || 'A'!=65 || ' '!=32
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#error "It seems that you encode characters in something other than ASCII."
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#endif
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/* ===== Compiler compatibility */
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/* GCC can check printf types on arbitrary functions. */
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#ifdef __GNUC__
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#define CHECK_PRINTF(formatIdx, firstArg) \
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__attribute__ ((format(printf, formatIdx, firstArg)))
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#else
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#define CHECK_PRINTF(formatIdx, firstArg)
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#endif
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/* inline is __inline on windows. */
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#ifdef MS_WINDOWS
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#define INLINE __inline
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#else
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#define INLINE inline
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#endif
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/* Try to get a reasonable __func__ substitute in place. */
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#if defined(_MSC_VER)
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/* MSVC compilers before VC7 don't have __func__ at all; later ones call it
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* __FUNCTION__. */
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#if _MSC_VER < 1300
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#define __func__ "???"
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#else
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#define __func__ __FUNCTION__
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#endif
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#else
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/* For platforms where autoconf works, make sure __func__ is defined
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* sanely. */
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#ifndef HAVE_MACRO__func__
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#ifdef HAVE_MACRO__FUNCTION__
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#define __func__ __FUNCTION__
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#elif HAVE_MACRO__FUNC__
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#define __func__ __FUNC__
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#else
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#define __func__ "???"
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#endif
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#endif /* ifndef MAVE_MACRO__func__ */
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#endif /* if not windows */
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#if defined(_MSC_VER) && (_MSC_VER < 1300)
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/* MSVC versions before 7 apparently don't believe that you can cast uint64_t
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* to double and really mean it. */
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extern INLINE double U64_TO_DBL(uint64_t x) {
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int64_t i = (int64_t) x;
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return (i < 0) ? ((double) INT64_MAX) : (double) i;
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}
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#define DBL_TO_U64(x) ((uint64_t)(int64_t) (x))
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#else
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#define U64_TO_DBL(x) ((double) (x))
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#define DBL_TO_U64(x) ((uint64_t) (x))
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#endif
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/* GCC has several useful attributes. */
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#if defined(__GNUC__) && __GNUC__ >= 3
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#define ATTR_NORETURN __attribute__((noreturn))
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#define ATTR_PURE __attribute__((pure))
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#define ATTR_CONST __attribute__((const))
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#define ATTR_MALLOC __attribute__((malloc))
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#define ATTR_NORETURN __attribute__((noreturn))
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/* Alas, nonnull is not at present a good idea for us. We'd like to get
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* warnings when we pass NULL where we shouldn't (which nonnull does, albeit
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* spottily), but we don't want to tell the compiler to make optimizations
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* with the assumption that the argument can't be NULL (since this would make
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* many of our checks go away, and make our code less robust against
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* programming errors). Unfortunately, nonnull currently does both of these
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* things, and there's no good way to split them up.
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*
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* #define ATTR_NONNULL(x) __attribute__((nonnull x)) */
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#define ATTR_NONNULL(x)
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/** Macro: Evaluates to <b>exp</b> and hints the compiler that the value
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* of <b>exp</b> will probably be true.
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*
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* In other words, "if (PREDICT_LIKELY(foo))" is the same as "if (foo)",
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* except that it tells the compiler that the branch will be taken most of the
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* time. This can generate slightly better code with some CPUs.
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*/
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#define PREDICT_LIKELY(exp) __builtin_expect(!!(exp), 1)
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/** Macro: Evaluates to <b>exp</b> and hints the compiler that the value
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* of <b>exp</b> will probably be false.
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*
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* In other words, "if (PREDICT_UNLIKELY(foo))" is the same as "if (foo)",
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* except that it tells the compiler that the branch will usually not be
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* taken. This can generate slightly better code with some CPUs.
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*/
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#define PREDICT_UNLIKELY(exp) __builtin_expect(!!(exp), 0)
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#else
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#define ATTR_NORETURN
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#define ATTR_PURE
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#define ATTR_CONST
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#define ATTR_MALLOC
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#define ATTR_NORETURN
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#define ATTR_NONNULL(x)
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#define PREDICT_LIKELY(exp) (exp)
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#define PREDICT_UNLIKELY(exp) (exp)
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#endif
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/** Expands to a syntactically valid empty statement. */
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#define STMT_NIL (void)0
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#ifdef __GNUC__
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/** STMT_BEGIN and STMT_END are used to wrap blocks inside macros so that
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* the macro can be used as if it were a single C statement. */
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#define STMT_BEGIN (void) ({
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#define STMT_END })
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#elif defined(sun) || defined(__sun__)
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#define STMT_BEGIN if (1) {
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#define STMT_END } else STMT_NIL
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#else
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#define STMT_BEGIN do {
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#define STMT_END } while (0)
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#endif
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/* ===== String compatibility */
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#ifdef MS_WINDOWS
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/* Windows names string functions differently from most other platforms. */
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#define strncasecmp _strnicmp
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#define strcasecmp _stricmp
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#endif
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#ifndef HAVE_STRLCAT
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size_t strlcat(char *dst, const char *src, size_t siz) ATTR_NONNULL((1,2));
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#endif
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#ifndef HAVE_STRLCPY
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size_t strlcpy(char *dst, const char *src, size_t siz) ATTR_NONNULL((1,2));
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#endif
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#ifdef _MSC_VER
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/** Casts the uint64_t value in <b>a</b> to the right type for an argument
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* to printf. */
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#define U64_PRINTF_ARG(a) (a)
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/** Casts the uint64_t* value in <b>a</b> to the right type for an argument
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* to scanf. */
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#define U64_SCANF_ARG(a) (a)
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/** Expands to a literal uint64_t-typed constant for the value <b>n</b>. */
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#define U64_LITERAL(n) (n ## ui64)
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#define I64_PRINTF_ARG(a) (a)
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#define I64_SCANF_ARG(a) (a)
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#define I64_LITERAL(n) (n ## i64)
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#else
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#define U64_PRINTF_ARG(a) ((long long unsigned int)(a))
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#define U64_SCANF_ARG(a) ((long long unsigned int*)(a))
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#define U64_LITERAL(n) (n ## llu)
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#define I64_PRINTF_ARG(a) ((long long signed int)(a))
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#define I64_SCANF_ARG(a) ((long long signed int*)(a))
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#define I64_LITERAL(n) (n ## ll)
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#endif
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#if defined(_MSC_VER) || defined(__MINGW32__) || defined(__MINGW64__)
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/** The formatting string used to put a uint64_t value in a printf() or
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* scanf() function. See also U64_PRINTF_ARG and U64_SCANF_ARG. */
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#define U64_FORMAT "%I64u"
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#define I64_FORMAT "%I64d"
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#else
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#define U64_FORMAT "%llu"
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#define I64_FORMAT "%lld"
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#endif
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/** Represents an mmaped file. Allocated via tor_mmap_file; freed with
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* tor_munmap_file. */
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typedef struct tor_mmap_t {
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const char *data; /**< Mapping of the file's contents. */
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size_t size; /**< Size of the file. */
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/* None of the fields below should be accessed from outside compat.c */
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#ifdef HAVE_SYS_MMAN_H
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size_t mapping_size; /**< Size of the actual mapping. (This is this file
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* size, rounded up to the nearest page.) */
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#elif defined MS_WINDOWS
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HANDLE file_handle;
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HANDLE mmap_handle;
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#endif
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} tor_mmap_t;
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tor_mmap_t *tor_mmap_file(const char *filename) ATTR_NONNULL((1));
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void tor_munmap_file(tor_mmap_t *handle) ATTR_NONNULL((1));
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int tor_snprintf(char *str, size_t size, const char *format, ...)
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CHECK_PRINTF(3,4) ATTR_NONNULL((1,3));
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int tor_vsnprintf(char *str, size_t size, const char *format, va_list args)
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ATTR_NONNULL((1,3));
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int tor_asprintf(char **strp, const char *fmt, ...)
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CHECK_PRINTF(2,3);
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int tor_vasprintf(char **strp, const char *fmt, va_list args);
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const void *tor_memmem(const void *haystack, size_t hlen, const void *needle,
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size_t nlen) ATTR_PURE ATTR_NONNULL((1,3));
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static const void *tor_memstr(const void *haystack, size_t hlen,
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const char *needle) ATTR_PURE ATTR_NONNULL((1,3));
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static INLINE const void *
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tor_memstr(const void *haystack, size_t hlen, const char *needle)
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{
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return tor_memmem(haystack, hlen, needle, strlen(needle));
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}
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/* Much of the time when we're checking ctypes, we're doing spec compliance,
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* which all assumes we're doing ASCII. */
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#define DECLARE_CTYPE_FN(name) \
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static int TOR_##name(char c); \
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extern const uint32_t TOR_##name##_TABLE[]; \
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static INLINE int TOR_##name(char c) { \
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uint8_t u = c; \
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return !!(TOR_##name##_TABLE[(u >> 5) & 7] & (1 << (u & 31))); \
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}
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DECLARE_CTYPE_FN(ISALPHA)
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DECLARE_CTYPE_FN(ISALNUM)
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DECLARE_CTYPE_FN(ISSPACE)
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DECLARE_CTYPE_FN(ISDIGIT)
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DECLARE_CTYPE_FN(ISXDIGIT)
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DECLARE_CTYPE_FN(ISPRINT)
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DECLARE_CTYPE_FN(ISLOWER)
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DECLARE_CTYPE_FN(ISUPPER)
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extern const char TOR_TOUPPER_TABLE[];
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extern const char TOR_TOLOWER_TABLE[];
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#define TOR_TOLOWER(c) (TOR_TOLOWER_TABLE[(uint8_t)c])
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#define TOR_TOUPPER(c) (TOR_TOUPPER_TABLE[(uint8_t)c])
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char *tor_strtok_r_impl(char *str, const char *sep, char **lasts);
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#ifdef HAVE_STRTOK_R
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#define tor_strtok_r(str, sep, lasts) strtok_r(str, sep, lasts)
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#else
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#define tor_strtok_r(str, sep, lasts) tor_strtok_r_impl(str, sep, lasts)
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#endif
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#ifdef MS_WINDOWS
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#define _SHORT_FILE_ (tor_fix_source_file(__FILE__))
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const char *tor_fix_source_file(const char *fname);
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#else
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#define _SHORT_FILE_ (__FILE__)
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#define tor_fix_source_file(s) (s)
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#endif
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/* ===== Time compatibility */
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#if !defined(HAVE_GETTIMEOFDAY) && !defined(HAVE_STRUCT_TIMEVAL_TV_SEC)
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struct timeval {
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time_t tv_sec;
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unsigned int tv_usec;
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};
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#endif
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void tor_gettimeofday(struct timeval *timeval);
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#ifdef HAVE_LOCALTIME_R
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#define tor_localtime_r localtime_r
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#else
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struct tm *tor_localtime_r(const time_t *timep, struct tm *result);
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#endif
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#ifdef HAVE_GMTIME_R
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#define tor_gmtime_r gmtime_r
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#else
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struct tm *tor_gmtime_r(const time_t *timep, struct tm *result);
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#endif
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/** Return true iff the tvp is related to uvp according to the relational
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* operator cmp. Recognized values for cmp are ==, <=, <, >=, and >. */
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#define tor_timercmp(tvp, uvp, cmp) \
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(((tvp)->tv_sec == (uvp)->tv_sec) ? \
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((tvp)->tv_usec cmp (uvp)->tv_usec) : \
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((tvp)->tv_sec cmp (uvp)->tv_sec))
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/* ===== File compatibility */
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int replace_file(const char *from, const char *to);
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int touch_file(const char *fname);
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typedef struct tor_lockfile_t tor_lockfile_t;
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tor_lockfile_t *tor_lockfile_lock(const char *filename, int blocking,
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int *locked_out);
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void tor_lockfile_unlock(tor_lockfile_t *lockfile);
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off_t tor_fd_getpos(int fd);
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int tor_fd_seekend(int fd);
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#ifdef MS_WINDOWS
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#define PATH_SEPARATOR "\\"
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#else
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#define PATH_SEPARATOR "/"
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#endif
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/* ===== Net compatibility */
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#if (SIZEOF_SOCKLEN_T == 0)
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typedef int socklen_t;
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#endif
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int tor_close_socket(int s);
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int tor_open_socket(int domain, int type, int protocol);
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int tor_accept_socket(int sockfd, struct sockaddr *addr, socklen_t *len);
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int get_n_open_sockets(void);
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#define tor_socket_send(s, buf, len, flags) send(s, buf, len, flags)
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#define tor_socket_recv(s, buf, len, flags) recv(s, buf, len, flags)
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/* Define struct in6_addr on platforms that do not have it. Generally,
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* these platforms are ones without IPv6 support, but we want to have
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* a working in6_addr there anyway, so we can use it to parse IPv6
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* addresses. */
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#if !defined(HAVE_STRUCT_IN6_ADDR)
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struct in6_addr
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{
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union {
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uint8_t u6_addr8[16];
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uint16_t u6_addr16[8];
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uint32_t u6_addr32[4];
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} in6_u;
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#define s6_addr in6_u.u6_addr8
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#define s6_addr16 in6_u.u6_addr16
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#define s6_addr32 in6_u.u6_addr32
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};
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#endif
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#if defined(__APPLE__) || defined(__darwin__) || defined(__FreeBSD__) \
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|| defined(__NetBSD__) || defined(__OpenBSD__)
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/* Many BSD variants seem not to define these. */
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#ifndef s6_addr16
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#define s6_addr16 __u6_addr.__u6_addr16
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#endif
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#ifndef s6_addr32
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#define s6_addr32 __u6_addr.__u6_addr32
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#endif
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#endif
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#ifndef HAVE_SA_FAMILY_T
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typedef uint16_t sa_family_t;
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#endif
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/* Apparently, MS and Solaris don't define s6_addr16 or s6_addr32. */
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#ifdef HAVE_STRUCT_IN6_ADDR_S6_ADDR32
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#define S6_ADDR32(x) ((uint32_t*)(x).s6_addr32)
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#else
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#define S6_ADDR32(x) ((uint32_t*)((char*)&(x).s6_addr))
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#endif
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#ifdef HAVE_STRUCT_IN6_ADDR_S6_ADDR16
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#define S6_ADDR16(x) ((uint16_t*)(x).s6_addr16)
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#else
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#define S6_ADDR16(x) ((uint16_t*)((char*)&(x).s6_addr))
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#endif
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/* Define struct sockaddr_in6 on platforms that do not have it. See notes
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* on struct in6_addr. */
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#if !defined(HAVE_STRUCT_SOCKADDR_IN6)
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struct sockaddr_in6 {
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sa_family_t sin6_family;
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uint16_t sin6_port;
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// uint32_t sin6_flowinfo;
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struct in6_addr sin6_addr;
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// uint32_t sin6_scope_id;
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};
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#endif
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int tor_inet_aton(const char *cp, struct in_addr *addr) ATTR_NONNULL((1,2));
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const char *tor_inet_ntop(int af, const void *src, char *dst, size_t len);
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int tor_inet_pton(int af, const char *src, void *dst);
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int tor_lookup_hostname(const char *name, uint32_t *addr) ATTR_NONNULL((1,2));
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void set_socket_nonblocking(int socket);
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int tor_socketpair(int family, int type, int protocol, int fd[2]);
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int network_init(void);
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/* For stupid historical reasons, windows sockets have an independent
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* set of errnos, and an independent way to get them. Also, you can't
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* always believe WSAEWOULDBLOCK. Use the macros below to compare
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* errnos against expected values, and use tor_socket_errno to find
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* the actual errno after a socket operation fails.
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*/
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#if defined(MS_WINDOWS)
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/** Return true if e is EAGAIN or the local equivalent. */
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#define ERRNO_IS_EAGAIN(e) ((e) == EAGAIN || (e) == WSAEWOULDBLOCK)
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/** Return true if e is EINPROGRESS or the local equivalent. */
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#define ERRNO_IS_EINPROGRESS(e) ((e) == WSAEINPROGRESS)
|
|
/** Return true if e is EINPROGRESS or the local equivalent as returned by
|
|
* a call to connect(). */
|
|
#define ERRNO_IS_CONN_EINPROGRESS(e) \
|
|
((e) == WSAEINPROGRESS || (e)== WSAEINVAL || (e) == WSAEWOULDBLOCK)
|
|
/** Return true if e is EAGAIN or another error indicating that a call to
|
|
* accept() has no pending connections to return. */
|
|
#define ERRNO_IS_ACCEPT_EAGAIN(e) ERRNO_IS_EAGAIN(e)
|
|
/** Return true if e is EMFILE or another error indicating that a call to
|
|
* accept() has failed because we're out of fds or something. */
|
|
#define ERRNO_IS_ACCEPT_RESOURCE_LIMIT(e) \
|
|
((e) == WSAEMFILE || (e) == WSAENOBUFS)
|
|
/** Return true if e is EADDRINUSE or the local equivalent. */
|
|
#define ERRNO_IS_EADDRINUSE(e) ((e) == WSAEADDRINUSE)
|
|
int tor_socket_errno(int sock);
|
|
const char *tor_socket_strerror(int e);
|
|
#else
|
|
#define ERRNO_IS_EAGAIN(e) ((e) == EAGAIN)
|
|
#define ERRNO_IS_EINPROGRESS(e) ((e) == EINPROGRESS)
|
|
#define ERRNO_IS_CONN_EINPROGRESS(e) ((e) == EINPROGRESS)
|
|
#define ERRNO_IS_ACCEPT_EAGAIN(e) ((e) == EAGAIN || (e) == ECONNABORTED)
|
|
#define ERRNO_IS_ACCEPT_RESOURCE_LIMIT(e) \
|
|
((e) == EMFILE || (e) == ENFILE || (e) == ENOBUFS || (e) == ENOMEM)
|
|
#define ERRNO_IS_EADDRINUSE(e) ((e) == EADDRINUSE)
|
|
#define tor_socket_errno(sock) (errno)
|
|
#define tor_socket_strerror(e) strerror(e)
|
|
#endif
|
|
|
|
/** Specified SOCKS5 status codes. */
|
|
typedef enum {
|
|
SOCKS5_SUCCEEDED = 0x00,
|
|
SOCKS5_GENERAL_ERROR = 0x01,
|
|
SOCKS5_NOT_ALLOWED = 0x02,
|
|
SOCKS5_NET_UNREACHABLE = 0x03,
|
|
SOCKS5_HOST_UNREACHABLE = 0x04,
|
|
SOCKS5_CONNECTION_REFUSED = 0x05,
|
|
SOCKS5_TTL_EXPIRED = 0x06,
|
|
SOCKS5_COMMAND_NOT_SUPPORTED = 0x07,
|
|
SOCKS5_ADDRESS_TYPE_NOT_SUPPORTED = 0x08,
|
|
} socks5_reply_status_t;
|
|
|
|
/* ===== Insecure rng */
|
|
void tor_init_weak_random(unsigned seed);
|
|
long tor_weak_random(void);
|
|
#define TOR_RAND_MAX (RAND_MAX)
|
|
|
|
/* ===== OS compatibility */
|
|
const char *get_uname(void);
|
|
|
|
uint16_t get_uint16(const char *cp) ATTR_PURE ATTR_NONNULL((1));
|
|
uint32_t get_uint32(const char *cp) ATTR_PURE ATTR_NONNULL((1));
|
|
uint64_t get_uint64(const char *cp) ATTR_PURE ATTR_NONNULL((1));
|
|
void set_uint16(char *cp, uint16_t v) ATTR_NONNULL((1));
|
|
void set_uint32(char *cp, uint32_t v) ATTR_NONNULL((1));
|
|
void set_uint64(char *cp, uint64_t v) ATTR_NONNULL((1));
|
|
|
|
/* These uint8 variants are defined to make the code more uniform. */
|
|
#define get_uint8(cp) (*(const uint8_t*)(cp))
|
|
static void set_uint8(char *cp, uint8_t v);
|
|
static INLINE void
|
|
set_uint8(char *cp, uint8_t v)
|
|
{
|
|
*(uint8_t*)cp = v;
|
|
}
|
|
|
|
#if !defined(HAVE_RLIM_T)
|
|
typedef unsigned long rlim_t;
|
|
#endif
|
|
int set_max_file_descriptors(rlim_t limit, int *max);
|
|
int switch_id(const char *user);
|
|
#ifdef HAVE_PWD_H
|
|
char *get_user_homedir(const char *username);
|
|
#endif
|
|
|
|
int spawn_func(void (*func)(void *), void *data);
|
|
void spawn_exit(void) ATTR_NORETURN;
|
|
|
|
#if defined(ENABLE_THREADS) && defined(MS_WINDOWS)
|
|
#define USE_WIN32_THREADS
|
|
#define TOR_IS_MULTITHREADED 1
|
|
#elif (defined(ENABLE_THREADS) && defined(HAVE_PTHREAD_H) && \
|
|
defined(HAVE_PTHREAD_CREATE))
|
|
#define USE_PTHREADS
|
|
#define TOR_IS_MULTITHREADED 1
|
|
#else
|
|
#undef TOR_IS_MULTITHREADED
|
|
#endif
|
|
|
|
int compute_num_cpus(void);
|
|
|
|
/* Because we use threads instead of processes on most platforms (Windows,
|
|
* Linux, etc), we need locking for them. On platforms with poor thread
|
|
* support or broken gethostbyname_r, these functions are no-ops. */
|
|
|
|
/** A generic lock structure for multithreaded builds. */
|
|
typedef struct tor_mutex_t {
|
|
#if defined(USE_WIN32_THREADS)
|
|
CRITICAL_SECTION mutex;
|
|
#elif defined(USE_PTHREADS)
|
|
pthread_mutex_t mutex;
|
|
#else
|
|
int _unused;
|
|
#endif
|
|
} tor_mutex_t;
|
|
|
|
int tor_mlockall(void);
|
|
|
|
#ifdef TOR_IS_MULTITHREADED
|
|
tor_mutex_t *tor_mutex_new(void);
|
|
void tor_mutex_init(tor_mutex_t *m);
|
|
void tor_mutex_acquire(tor_mutex_t *m);
|
|
void tor_mutex_release(tor_mutex_t *m);
|
|
void tor_mutex_free(tor_mutex_t *m);
|
|
void tor_mutex_uninit(tor_mutex_t *m);
|
|
unsigned long tor_get_thread_id(void);
|
|
void tor_threads_init(void);
|
|
#else
|
|
#define tor_mutex_new() ((tor_mutex_t*)tor_malloc(sizeof(int)))
|
|
#define tor_mutex_init(m) STMT_NIL
|
|
#define tor_mutex_acquire(m) STMT_NIL
|
|
#define tor_mutex_release(m) STMT_NIL
|
|
#define tor_mutex_free(m) STMT_BEGIN tor_free(m); STMT_END
|
|
#define tor_mutex_uninit(m) STMT_NIL
|
|
#define tor_get_thread_id() (1UL)
|
|
#define tor_threads_init() STMT_NIL
|
|
#endif
|
|
|
|
void set_main_thread(void);
|
|
int in_main_thread(void);
|
|
|
|
#ifdef TOR_IS_MULTITHREADED
|
|
#if 0
|
|
typedef struct tor_cond_t tor_cond_t;
|
|
tor_cond_t *tor_cond_new(void);
|
|
void tor_cond_free(tor_cond_t *cond);
|
|
int tor_cond_wait(tor_cond_t *cond, tor_mutex_t *mutex);
|
|
void tor_cond_signal_one(tor_cond_t *cond);
|
|
void tor_cond_signal_all(tor_cond_t *cond);
|
|
#endif
|
|
#endif
|
|
|
|
/** Macros for MIN/MAX. Never use these when the arguments could have
|
|
* side-effects.
|
|
* {With GCC extensions we could probably define a safer MIN/MAX. But
|
|
* depending on that safety would be dangerous, since not every platform
|
|
* has it.}
|
|
**/
|
|
#ifndef MAX
|
|
#define MAX(a,b) ( ((a)<(b)) ? (b) : (a) )
|
|
#endif
|
|
#ifndef MIN
|
|
#define MIN(a,b) ( ((a)>(b)) ? (b) : (a) )
|
|
#endif
|
|
|
|
/* Platform-specific helpers. */
|
|
#ifdef MS_WINDOWS
|
|
char *format_win32_error(DWORD err);
|
|
#endif
|
|
|
|
/*for some reason my compiler doesn't have these version flags defined
|
|
a nice homework assignment for someone one day is to define the rest*/
|
|
//these are the values as given on MSDN
|
|
#ifdef MS_WINDOWS
|
|
|
|
#ifndef VER_SUITE_EMBEDDEDNT
|
|
#define VER_SUITE_EMBEDDEDNT 0x00000040
|
|
#endif
|
|
|
|
#ifndef VER_SUITE_SINGLEUSERTS
|
|
#define VER_SUITE_SINGLEUSERTS 0x00000100
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|