+/* -*- mode: c; indent-tabs-mode: nil -*- */
+/* include/k5-platform.h */
/*
- * k5-platform.h
- *
- * Copyright 2003, 2004, 2005 Massachusetts Institute of Technology.
+ * Copyright 2003, 2004, 2005, 2007, 2008, 2009 Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
- *
+ *
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
- * permission. Furthermore if you modify this software you must label
+ * permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
- *
- *
+ */
+
+/*
* Some platform-dependent definitions to sync up the C support level.
* Some to a C99-ish level, some related utility code.
*
* Currently:
- * + make "static inline" work
+ * + [u]int{8,16,32}_t types
* + 64-bit types and load/store code
* + SIZE_MAX
* + shared library init/fini hooks
* + consistent getpwnam/getpwuid interfaces
+ * + va_copy fudged if not provided
+ * + strlcpy/strlcat
+ * + fnmatch
+ * + [v]asprintf
+ * + mkstemp
+ * + zap (support function; macro is in k5-int.h)
+ * + path manipulation
+ * + _, N_, dgettext, bindtextdomain, setlocale (for localization)
*/
#ifndef K5_PLATFORM_H
#define K5_PLATFORM_H
#include "autoconf.h"
+#include <assert.h>
+#include <string.h>
+#include <stdarg.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <errno.h>
+#ifdef HAVE_FNMATCH_H
+#include <fnmatch.h>
+#endif
+
+#ifdef _WIN32
+#define CAN_COPY_VA_LIST
+#endif
+
+#if defined(macintosh) || (defined(__MACH__) && defined(__APPLE__))
+#include <TargetConditionals.h>
+#endif
/* Initialization and finalization function support for libraries.
# include "k5-thread.h"
typedef struct { k5_once_t once; int error, did_run; void (*fn)(void); } k5_init_t;
# ifdef USE_LINKER_INIT_OPTION
-# define MAYBE_DUMMY_INIT(NAME) \
- void JOIN__2(NAME, auxinit) () { }
+# define MAYBE_DUMMY_INIT(NAME) \
+ void JOIN__2(NAME, auxinit) () { }
# else
# define MAYBE_DUMMY_INIT(NAME)
# endif
# ifdef __GNUC__
/* Do it in macro form so we get the file/line of the invocation if
the assertion fails. */
-# define k5_call_init_function(I) \
- (__extension__ ({ \
- k5_init_t *k5int_i = (I); \
- int k5int_err = k5_once(&k5int_i->once, k5int_i->fn); \
- (k5int_err \
- ? k5int_err \
- : (assert(k5int_i->did_run != 0), k5int_i->error)); \
- }))
+# define k5_call_init_function(I) \
+ (__extension__ ({ \
+ k5_init_t *k5int_i = (I); \
+ int k5int_err = k5_once(&k5int_i->once, k5int_i->fn); \
+ (k5int_err \
+ ? k5int_err \
+ : (assert(k5int_i->did_run != 0), k5int_i->error)); \
+ }))
# define MAYBE_DEFINE_CALLINIT_FUNCTION
# else
-# define MAYBE_DEFINE_CALLINIT_FUNCTION \
- static inline int k5_call_init_function(k5_init_t *i) \
- { \
- int err; \
- err = k5_once(&i->once, i->fn); \
- if (err) \
- return err; \
- assert (i->did_run != 0); \
- return i->error; \
- }
+# define MAYBE_DEFINE_CALLINIT_FUNCTION \
+ static inline int k5_call_init_function(k5_init_t *i) \
+ { \
+ int err; \
+ err = k5_once(&i->once, i->fn); \
+ if (err) \
+ return err; \
+ assert (i->did_run != 0); \
+ return i->error; \
+ }
# endif
-# define MAKE_INIT_FUNCTION(NAME) \
- static int NAME(void); \
- MAYBE_DUMMY_INIT(NAME) \
- /* forward declaration for use in initializer */ \
- static void JOIN__2(NAME, aux) (void); \
- static k5_init_t JOIN__2(NAME, once) = \
- { K5_ONCE_INIT, 0, 0, JOIN__2(NAME, aux) }; \
- MAYBE_DEFINE_CALLINIT_FUNCTION \
- static void JOIN__2(NAME, aux) (void) \
- { \
- JOIN__2(NAME, once).did_run = 1; \
- JOIN__2(NAME, once).error = NAME(); \
- } \
- /* so ';' following macro use won't get error */ \
- static int NAME(void)
-# define CALL_INIT_FUNCTION(NAME) \
- k5_call_init_function(& JOIN__2(NAME, once))
+# define MAKE_INIT_FUNCTION(NAME) \
+ static int NAME(void); \
+ MAYBE_DUMMY_INIT(NAME) \
+ /* forward declaration for use in initializer */ \
+ static void JOIN__2(NAME, aux) (void); \
+ static k5_init_t JOIN__2(NAME, once) = \
+ { K5_ONCE_INIT, 0, 0, JOIN__2(NAME, aux) }; \
+ MAYBE_DEFINE_CALLINIT_FUNCTION \
+ static void JOIN__2(NAME, aux) (void) \
+ { \
+ JOIN__2(NAME, once).did_run = 1; \
+ JOIN__2(NAME, once).error = NAME(); \
+ } \
+ /* so ';' following macro use won't get error */ \
+ static int NAME(void)
+# define CALL_INIT_FUNCTION(NAME) \
+ k5_call_init_function(& JOIN__2(NAME, once))
/* This should be called in finalization only, so we shouldn't have
multiple active threads mucking around in our library at this
point. So ignore the once_t object and just look at the flag.
application code should already be coordinating things such that
the library code is not in use by this point, and memory
synchronization will be needed there. */
-# define INITIALIZER_RAN(NAME) \
- (JOIN__2(NAME, once).did_run && JOIN__2(NAME, once).error == 0)
+# define INITIALIZER_RAN(NAME) \
+ (JOIN__2(NAME, once).did_run && JOIN__2(NAME, once).error == 0)
-# define PROGRAM_EXITING() (0)
+# define PROGRAM_EXITING() (0)
#elif defined(__GNUC__) && !defined(_WIN32) && defined(CONSTRUCTOR_ATTR_WORKS)
# ifdef USE_LINKER_INIT_OPTION
/* Both gcc and linker option?? Favor gcc. */
-# define MAYBE_DUMMY_INIT(NAME) \
- void JOIN__2(NAME, auxinit) () { }
+# define MAYBE_DUMMY_INIT(NAME) \
+ void JOIN__2(NAME, auxinit) () { }
# else
# define MAYBE_DUMMY_INIT(NAME)
# endif
typedef struct { int error; unsigned char did_run; } k5_init_t;
-# define MAKE_INIT_FUNCTION(NAME) \
- MAYBE_DUMMY_INIT(NAME) \
- static k5_init_t JOIN__2(NAME, ran) \
- = { 0, 2 }; \
- static void JOIN__2(NAME, aux)(void) \
- __attribute__((constructor)); \
- static int NAME(void); \
- static void JOIN__2(NAME, aux)(void) \
- { \
- JOIN__2(NAME, ran).error = NAME(); \
- JOIN__2(NAME, ran).did_run = 3; \
- } \
- static int NAME(void)
-# define CALL_INIT_FUNCTION(NAME) \
- (JOIN__2(NAME, ran).did_run == 3 \
- ? JOIN__2(NAME, ran).error \
- : (abort(),0))
-# define INITIALIZER_RAN(NAME) (JOIN__2(NAME,ran).did_run == 3 && JOIN__2(NAME, ran).error == 0)
-
-# define PROGRAM_EXITING() (0)
+# define MAKE_INIT_FUNCTION(NAME) \
+ MAYBE_DUMMY_INIT(NAME) \
+ static k5_init_t JOIN__2(NAME, ran) \
+ = { 0, 2 }; \
+ static void JOIN__2(NAME, aux)(void) \
+ __attribute__((constructor)); \
+ static int NAME(void); \
+ static void JOIN__2(NAME, aux)(void) \
+ { \
+ JOIN__2(NAME, ran).error = NAME(); \
+ JOIN__2(NAME, ran).did_run = 3; \
+ } \
+ static int NAME(void)
+# define CALL_INIT_FUNCTION(NAME) \
+ (JOIN__2(NAME, ran).did_run == 3 \
+ ? JOIN__2(NAME, ran).error \
+ : (abort(),0))
+# define INITIALIZER_RAN(NAME) (JOIN__2(NAME,ran).did_run == 3 && JOIN__2(NAME, ran).error == 0)
+
+# define PROGRAM_EXITING() (0)
#elif defined(USE_LINKER_INIT_OPTION) || defined(_WIN32)
/* Run initializer at load time, via linker magic, or in the
case of WIN32, win_glue.c hard-coded knowledge. */
typedef struct { int error; unsigned char did_run; } k5_init_t;
-# define MAKE_INIT_FUNCTION(NAME) \
- static k5_init_t JOIN__2(NAME, ran) \
- = { 0, 2 }; \
- static int NAME(void); \
- void JOIN__2(NAME, auxinit)() \
- { \
- JOIN__2(NAME, ran).error = NAME(); \
- JOIN__2(NAME, ran).did_run = 3; \
- } \
- static int NAME(void)
-# define CALL_INIT_FUNCTION(NAME) \
- (JOIN__2(NAME, ran).did_run == 3 \
- ? JOIN__2(NAME, ran).error \
- : (abort(),0))
-# define INITIALIZER_RAN(NAME) \
- (JOIN__2(NAME, ran).error == 0)
-
-# define PROGRAM_EXITING() (0)
+# define MAKE_INIT_FUNCTION(NAME) \
+ static k5_init_t JOIN__2(NAME, ran) \
+ = { 0, 2 }; \
+ static int NAME(void); \
+ void JOIN__2(NAME, auxinit)() \
+ { \
+ JOIN__2(NAME, ran).error = NAME(); \
+ JOIN__2(NAME, ran).did_run = 3; \
+ } \
+ static int NAME(void)
+# define CALL_INIT_FUNCTION(NAME) \
+ (JOIN__2(NAME, ran).did_run == 3 \
+ ? JOIN__2(NAME, ran).error \
+ : (abort(),0))
+# define INITIALIZER_RAN(NAME) \
+ (JOIN__2(NAME, ran).error == 0)
+
+# define PROGRAM_EXITING() (0)
#else
# error "Don't know how to do load-time initializers for this configuration."
-# define PROGRAM_EXITING() (0)
+# define PROGRAM_EXITING() (0)
#endif
# ifdef __hpux
/* On HP-UX, we need this auxiliary function. At dynamic load or
- unload time (but *not* program startup and termination for
- link-time specified libraries), the linker-indicated function
- is called with a handle on the library and a flag indicating
- whether it's being loaded or unloaded.
+ unload time (but *not* program startup and termination for
+ link-time specified libraries), the linker-indicated function
+ is called with a handle on the library and a flag indicating
+ whether it's being loaded or unloaded.
- The "real" fini function doesn't need to be exported, so
- declare it static.
+ The "real" fini function doesn't need to be exported, so
+ declare it static.
- As usual, the final declaration is just for syntactic
- convenience, so the top-level invocation of this macro can be
- followed by a semicolon. */
+ As usual, the final declaration is just for syntactic
+ convenience, so the top-level invocation of this macro can be
+ followed by a semicolon. */
# include <dl.h>
-# define MAKE_FINI_FUNCTION(NAME) \
- static void NAME(void); \
- void JOIN__2(NAME, auxfini)(shl_t, int); /* silence gcc warnings */ \
- void JOIN__2(NAME, auxfini)(shl_t h, int l) { if (!l) NAME(); } \
- static void NAME(void)
+# define MAKE_FINI_FUNCTION(NAME) \
+ static void NAME(void); \
+ void JOIN__2(NAME, auxfini)(shl_t, int); /* silence gcc warnings */ \
+ void JOIN__2(NAME, auxfini)(shl_t h, int l) { if (!l) NAME(); } \
+ static void NAME(void)
# else /* not hpux */
-# define MAKE_FINI_FUNCTION(NAME) \
- void NAME(void)
+# define MAKE_FINI_FUNCTION(NAME) \
+ void NAME(void)
# endif
function attribute that makes use of the same facility as C++.
XXX How do we know if the C++ support actually works? */
-# define MAKE_FINI_FUNCTION(NAME) \
- static void NAME(void) __attribute__((destructor))
+# define MAKE_FINI_FUNCTION(NAME) \
+ static void NAME(void) __attribute__((destructor))
#elif !defined(SHARED)
The code will still define the function, but we won't do anything
with it. Annoying: This may generate unused-function warnings. */
-# define MAKE_FINI_FUNCTION(NAME) \
- static void NAME(void)
+# define MAKE_FINI_FUNCTION(NAME) \
+ static void NAME(void)
#else
# define UINT64_TYPE unsigned long long
#endif
-#include <limits.h>
#ifndef SIZE_MAX
# define SIZE_MAX ((size_t)((size_t)0 - 1))
#endif
-/* Read and write integer values as (unaligned) octet strings in
- specific byte orders.
+#ifndef UINT64_MAX
+# define UINT64_MAX ((UINT64_TYPE)((UINT64_TYPE)0 - 1))
+#endif
- Add per-platform optimizations later if needed. (E.g., maybe x86
- unaligned word stores and gcc/asm instructions for byte swaps,
- etc.) */
+#ifdef _WIN32
+# define SSIZE_MAX ((ssize_t)(SIZE_MAX/2))
+#endif
-/* Optimize for GCC on architectures with known byte orders.
+/* Read and write integer values as (unaligned) octet strings in
+ specific byte orders. Add per-platform optimizations as
+ needed. */
+
+#if HAVE_ENDIAN_H
+# include <endian.h>
+#elif HAVE_MACHINE_ENDIAN_H
+# include <machine/endian.h>
+#endif
+/* Check for BIG/LITTLE_ENDIAN macros. If exactly one is defined, use
+ it. If both are defined, then BYTE_ORDER should be defined and
+ match one of them. Try those symbols, then try again with an
+ underscore prefix. */
+#if defined(BIG_ENDIAN) && defined(LITTLE_ENDIAN)
+# if BYTE_ORDER == BIG_ENDIAN
+# define K5_BE
+# endif
+# if BYTE_ORDER == LITTLE_ENDIAN
+# define K5_LE
+# endif
+#elif defined(BIG_ENDIAN)
+# define K5_BE
+#elif defined(LITTLE_ENDIAN)
+# define K5_LE
+#elif defined(_BIG_ENDIAN) && defined(_LITTLE_ENDIAN)
+# if _BYTE_ORDER == _BIG_ENDIAN
+# define K5_BE
+# endif
+# if _BYTE_ORDER == _LITTLE_ENDIAN
+# define K5_LE
+# endif
+#elif defined(_BIG_ENDIAN)
+# define K5_BE
+#elif defined(_LITTLE_ENDIAN)
+# define K5_LE
+#elif defined(__BIG_ENDIAN__) && !defined(__LITTLE_ENDIAN__)
+# define K5_BE
+#elif defined(__LITTLE_ENDIAN__) && !defined(__BIG_ENDIAN__)
+# define K5_LE
+#endif
+#if !defined(K5_BE) && !defined(K5_LE)
+/* Look for some architectures we know about.
MIPS can use either byte order, but the preprocessor tells us which
mode we're compiling for. The GCC config files indicate that
As far as I know, only PDP11 and ARM (which we don't handle here)
have strange byte orders where an 8-byte value isn't laid out as
- either 12345678 or 87654321.
-
- See also lib/crypto/aes/aesopt.h for code checking available header
- files for endianness preprocessor macros. */
-#if defined(__i386__) || defined(_MIPSEL) || defined(__alpha__) || defined(__ia64__)
-# define K5_LE /* little-endian */
+ either 12345678 or 87654321. */
+# if defined(__i386__) || defined(_MIPSEL) || defined(__alpha__) || (defined(__ia64__) && !defined(__hpux))
+# define K5_LE
+# endif
+# if defined(__hppa__) || defined(__rs6000__) || defined(__sparc__) || defined(_MIPSEB) || defined(__m68k__) || defined(__sparc64__) || defined(__ppc__) || defined(__ppc64__) || (defined(__hpux) && defined(__ia64__))
+# define K5_BE
+# endif
#endif
-#if defined(__hppa__) || defined(__rs6000__) || defined(__sparc__) || defined(_MIPSEB) || defined(__m68k__) || defined(__sparc64__) || defined(__ppc__) || defined(__ppc64__)
-# define K5_BE /* big-endian */
+#if defined(K5_BE) && defined(K5_LE)
+# error "oops, check the byte order macros"
#endif
-/* GCC's packed structures can be written to with any alignment; the
+/* Optimize for GCC on platforms with known byte orders.
+
+ GCC's packed structures can be written to with any alignment; the
compiler will use byte operations, unaligned-word operations, or
normal memory ops as appropriate for the architecture.
on most of our platforms except Windows, where we're not using
GCC. */
#ifdef __GNUC__
-# define PUT(SIZE,PTR,VAL) (((struct { uint##SIZE##_t i; } __attribute__((packed)) *)(PTR))->i = (VAL))
-# define GET(SIZE,PTR) (((const struct { uint##SIZE##_t i; } __attribute__((packed)) *)(PTR))->i)
-# define PUTSWAPPED(SIZE,PTR,VAL) PUT(SIZE,PTR,SWAP##SIZE(VAL))
-# define GETSWAPPED(SIZE,PTR) SWAP##SIZE(GET(SIZE,PTR))
+# define PUT(SIZE,PTR,VAL) (((struct { uint##SIZE##_t i; } __attribute__((packed)) *)(PTR))->i = (VAL))
+# define GET(SIZE,PTR) (((const struct { uint##SIZE##_t i; } __attribute__((packed)) *)(PTR))->i)
+# define PUTSWAPPED(SIZE,PTR,VAL) PUT(SIZE,PTR,SWAP##SIZE(VAL))
+# define GETSWAPPED(SIZE,PTR) SWAP##SIZE(GET(SIZE,PTR))
#endif
/* To do: Define SWAP16, SWAP32, SWAP64 macros to byte-swap values
with the indicated numbers of bits.
Mac OS X: machine/endian.h or byte_order.h, NXSwap{Short,Int,LongLong}
NetBSD: sys/bswap.h, bswap16 etc. */
+#if defined(HAVE_BYTESWAP_H) && defined(HAVE_BSWAP_16)
+# include <byteswap.h>
+# define SWAP16 bswap_16
+# define SWAP32 bswap_32
+# ifdef HAVE_BSWAP_64
+# define SWAP64 bswap_64
+# endif
+#elif TARGET_OS_MAC
+# include <architecture/byte_order.h>
+# if 0 /* This causes compiler warnings. */
+# define SWAP16 OSSwapInt16
+# else
+# define SWAP16 k5_swap16
+static inline unsigned int k5_swap16 (unsigned int x) {
+ x &= 0xffff;
+ return (x >> 8) | ((x & 0xff) << 8);
+}
+# endif
+# define SWAP32 OSSwapInt32
+# define SWAP64 OSSwapInt64
+#elif defined(HAVE_SYS_BSWAP_H)
+/* XXX NetBSD/x86 5.0.1 defines bswap16 and bswap32 as inline
+ functions only, so autoconf doesn't pick up on their existence.
+ So, no feature macro test for them here. The 64-bit version isn't
+ inline at all, though, for whatever reason. */
+# include <sys/bswap.h>
+# define SWAP16 bswap16
+# define SWAP32 bswap32
+/* However, bswap64 causes lots of warnings about 'long long'
+ constants; probably only on 32-bit platforms. */
+# if LONG_MAX > 0x7fffffffL
+# define SWAP64 bswap64
+# endif
+#endif
+
+/* Note that on Windows at least this file can be included from C++
+ source, so casts *from* void* are required. */
static inline void
-store_16_be (unsigned int val, unsigned char *p)
+store_16_be (unsigned int val, void *vp)
{
-#if defined(__GNUC__) && defined(K5_BE)
+ unsigned char *p = (unsigned char *) vp;
+#if defined(__GNUC__) && defined(K5_BE) && !defined(__cplusplus)
PUT(16,p,val);
-#elif defined(__GNUC__) && defined(K5_LE) && defined(SWAP16)
+#elif defined(__GNUC__) && defined(K5_LE) && defined(SWAP16) && !defined(__cplusplus)
PUTSWAPPED(16,p,val);
#else
p[0] = (val >> 8) & 0xff;
#endif
}
static inline void
-store_16_le (unsigned int val, unsigned char *p)
+store_32_be (unsigned int val, void *vp)
{
-#if defined(__GNUC__) && defined(K5_LE)
- PUT(16,p,val);
-#elif defined(__GNUC__) && defined(K5_BE) && defined(SWAP16)
- PUTSWAPPED(16,p,val);
-#else
- p[1] = (val >> 8) & 0xff;
- p[0] = (val ) & 0xff;
-#endif
-}
-static inline void
-store_32_be (unsigned int val, unsigned char *p)
-{
-#if defined(__GNUC__) && defined(K5_BE)
+ unsigned char *p = (unsigned char *) vp;
+#if defined(__GNUC__) && defined(K5_BE) && !defined(__cplusplus)
PUT(32,p,val);
-#elif defined(__GNUC__) && defined(K5_LE) && defined(SWAP32)
+#elif defined(__GNUC__) && defined(K5_LE) && defined(SWAP32) && !defined(__cplusplus)
PUTSWAPPED(32,p,val);
#else
p[0] = (val >> 24) & 0xff;
#endif
}
static inline void
-store_32_le (unsigned int val, unsigned char *p)
-{
-#if defined(__GNUC__) && defined(K5_LE)
- PUT(32,p,val);
-#elif defined(__GNUC__) && defined(K5_BE) && defined(SWAP32)
- PUTSWAPPED(32,p,val);
-#else
- p[3] = (val >> 24) & 0xff;
- p[2] = (val >> 16) & 0xff;
- p[1] = (val >> 8) & 0xff;
- p[0] = (val ) & 0xff;
-#endif
-}
-static inline void
-store_64_be (UINT64_TYPE val, unsigned char *p)
+store_64_be (UINT64_TYPE val, void *vp)
{
-#if defined(__GNUC__) && defined(K5_BE)
+ unsigned char *p = (unsigned char *) vp;
+#if defined(__GNUC__) && defined(K5_BE) && !defined(__cplusplus)
PUT(64,p,val);
-#elif defined(__GNUC__) && defined(K5_LE) && defined(SWAP64)
+#elif defined(__GNUC__) && defined(K5_LE) && defined(SWAP64) && !defined(__cplusplus)
PUTSWAPPED(64,p,val);
#else
p[0] = (unsigned char)((val >> 56) & 0xff);
p[7] = (unsigned char)((val ) & 0xff);
#endif
}
+static inline unsigned short
+load_16_be (const void *cvp)
+{
+ const unsigned char *p = (const unsigned char *) cvp;
+#if defined(__GNUC__) && defined(K5_BE) && !defined(__cplusplus)
+ return GET(16,p);
+#elif defined(__GNUC__) && defined(K5_LE) && defined(SWAP16) && !defined(__cplusplus)
+ return GETSWAPPED(16,p);
+#else
+ return (p[1] | (p[0] << 8));
+#endif
+}
+static inline unsigned int
+load_32_be (const void *cvp)
+{
+ const unsigned char *p = (const unsigned char *) cvp;
+#if defined(__GNUC__) && defined(K5_BE) && !defined(__cplusplus)
+ return GET(32,p);
+#elif defined(__GNUC__) && defined(K5_LE) && defined(SWAP32) && !defined(__cplusplus)
+ return GETSWAPPED(32,p);
+#else
+ return (p[3] | (p[2] << 8)
+ | ((uint32_t) p[1] << 16)
+ | ((uint32_t) p[0] << 24));
+#endif
+}
+static inline UINT64_TYPE
+load_64_be (const void *cvp)
+{
+ const unsigned char *p = (const unsigned char *) cvp;
+#if defined(__GNUC__) && defined(K5_BE) && !defined(__cplusplus)
+ return GET(64,p);
+#elif defined(__GNUC__) && defined(K5_LE) && defined(SWAP64) && !defined(__cplusplus)
+ return GETSWAPPED(64,p);
+#else
+ return ((UINT64_TYPE)load_32_be(p) << 32) | load_32_be(p+4);
+#endif
+}
static inline void
-store_64_le (UINT64_TYPE val, unsigned char *p)
+store_16_le (unsigned int val, void *vp)
{
-#if defined(__GNUC__) && defined(K5_LE)
+ unsigned char *p = (unsigned char *) vp;
+#if defined(__GNUC__) && defined(K5_LE) && !defined(__cplusplus)
+ PUT(16,p,val);
+#elif defined(__GNUC__) && defined(K5_BE) && defined(SWAP16) && !defined(__cplusplus)
+ PUTSWAPPED(16,p,val);
+#else
+ p[1] = (val >> 8) & 0xff;
+ p[0] = (val ) & 0xff;
+#endif
+}
+static inline void
+store_32_le (unsigned int val, void *vp)
+{
+ unsigned char *p = (unsigned char *) vp;
+#if defined(__GNUC__) && defined(K5_LE) && !defined(__cplusplus)
+ PUT(32,p,val);
+#elif defined(__GNUC__) && defined(K5_BE) && defined(SWAP32) && !defined(__cplusplus)
+ PUTSWAPPED(32,p,val);
+#else
+ p[3] = (val >> 24) & 0xff;
+ p[2] = (val >> 16) & 0xff;
+ p[1] = (val >> 8) & 0xff;
+ p[0] = (val ) & 0xff;
+#endif
+}
+static inline void
+store_64_le (UINT64_TYPE val, void *vp)
+{
+ unsigned char *p = (unsigned char *) vp;
+#if defined(__GNUC__) && defined(K5_LE) && !defined(__cplusplus)
PUT(64,p,val);
-#elif defined(__GNUC__) && defined(K5_BE) && defined(SWAP64)
+#elif defined(__GNUC__) && defined(K5_BE) && defined(SWAP64) && !defined(__cplusplus)
PUTSWAPPED(64,p,val);
#else
p[7] = (unsigned char)((val >> 56) & 0xff);
#endif
}
static inline unsigned short
-load_16_be (const unsigned char *p)
+load_16_le (const void *cvp)
{
-#if defined(__GNUC__) && defined(K5_BE)
+ const unsigned char *p = (const unsigned char *) cvp;
+#if defined(__GNUC__) && defined(K5_LE) && !defined(__cplusplus)
return GET(16,p);
-#elif defined(__GNUC__) && defined(K5_LE) && defined(SWAP16)
- return GETSWAPPED(16,p);
-#else
- return (p[1] | (p[0] << 8));
-#endif
-}
-static inline unsigned short
-load_16_le (const unsigned char *p)
-{
-#if defined(__GNUC__) && defined(K5_LE)
- return GET(16,p);
-#elif defined(__GNUC__) && defined(K5_BE) && defined(SWAP16)
+#elif defined(__GNUC__) && defined(K5_BE) && defined(SWAP16) && !defined(__cplusplus)
return GETSWAPPED(16,p);
#else
return (p[0] | (p[1] << 8));
#endif
}
static inline unsigned int
-load_32_be (const unsigned char *p)
+load_32_le (const void *cvp)
{
-#if defined(__GNUC__) && defined(K5_BE)
+ const unsigned char *p = (const unsigned char *) cvp;
+#if defined(__GNUC__) && defined(K5_LE) && !defined(__cplusplus)
return GET(32,p);
-#elif defined(__GNUC__) && defined(K5_LE) && defined(SWAP32)
- return GETSWAPPED(32,p);
-#else
- return (p[3] | (p[2] << 8) | (p[1] << 16) | (p[0] << 24));
-#endif
-}
-static inline unsigned int
-load_32_le (const unsigned char *p)
-{
-#if defined(__GNUC__) && defined(K5_LE)
- return GET(32,p);
-#elif defined(__GNUC__) && defined(K5_BE) && defined(SWAP32)
+#elif defined(__GNUC__) && defined(K5_BE) && defined(SWAP32) && !defined(__cplusplus)
return GETSWAPPED(32,p);
#else
return (p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24));
#endif
}
static inline UINT64_TYPE
-load_64_be (const unsigned char *p)
+load_64_le (const void *cvp)
{
-#if defined(__GNUC__) && defined(K5_BE)
+ const unsigned char *p = (const unsigned char *) cvp;
+#if defined(__GNUC__) && defined(K5_LE) && !defined(__cplusplus)
return GET(64,p);
-#elif defined(__GNUC__) && defined(K5_LE) && defined(SWAP64)
+#elif defined(__GNUC__) && defined(K5_BE) && defined(SWAP64) && !defined(__cplusplus)
return GETSWAPPED(64,p);
#else
- return ((UINT64_TYPE)load_32_be(p) << 32) | load_32_be(p+4);
+ return ((UINT64_TYPE)load_32_le(p+4) << 32) | load_32_le(p);
#endif
}
+
+#ifdef _WIN32
+#define UINT16_TYPE unsigned __int16
+#define UINT32_TYPE unsigned __int32
+#else
+#define UINT16_TYPE uint16_t
+#define UINT32_TYPE uint32_t
+#endif
+
+static inline void
+store_16_n (unsigned int val, void *vp)
+{
+ UINT16_TYPE n = val;
+ memcpy(vp, &n, 2);
+}
+static inline void
+store_32_n (unsigned int val, void *vp)
+{
+ UINT32_TYPE n = val;
+ memcpy(vp, &n, 4);
+}
+static inline void
+store_64_n (UINT64_TYPE val, void *vp)
+{
+ UINT64_TYPE n = val;
+ memcpy(vp, &n, 8);
+}
+static inline unsigned short
+load_16_n (const void *p)
+{
+ UINT16_TYPE n;
+ memcpy(&n, p, 2);
+ return n;
+}
+static inline unsigned int
+load_32_n (const void *p)
+{
+ UINT32_TYPE n;
+ memcpy(&n, p, 4);
+ return n;
+}
static inline UINT64_TYPE
-load_64_le (const unsigned char *p)
+load_64_n (const void *p)
{
-#if defined(__GNUC__) && defined(K5_LE)
- return GET(64,p);
-#elif defined(__GNUC__) && defined(K5_BE) && defined(SWAP64)
- return GETSWAPPED(64,p);
+ UINT64_TYPE n;
+ memcpy(&n, p, 8);
+ return n;
+}
+#undef UINT16_TYPE
+#undef UINT32_TYPE
+
+/* Assume for simplicity that these swaps are identical. */
+static inline UINT64_TYPE
+k5_htonll (UINT64_TYPE val)
+{
+#ifdef K5_BE
+ return val;
+#elif defined K5_LE && defined SWAP64
+ return SWAP64 (val);
#else
- return ((UINT64_TYPE)load_32_le(p+4) << 32) | load_32_le(p);
+ return load_64_be ((unsigned char *)&val);
#endif
}
-
+static inline UINT64_TYPE
+k5_ntohll (UINT64_TYPE val)
+{
+ return k5_htonll (val);
+}
/* Make the interfaces to getpwnam and getpwuid consistent.
Model the wrappers on the POSIX thread-safe versions, but
#ifdef HAVE_GETPWNAM_R
# ifndef GETPWNAM_R_4_ARGS
/* POSIX */
-# define k5_getpwnam_r(NAME, REC, BUF, BUFSIZE, OUT) \
- getpwnam_r(NAME,REC,BUF,BUFSIZE,OUT)
+# define k5_getpwnam_r(NAME, REC, BUF, BUFSIZE, OUT) \
+ (getpwnam_r(NAME,REC,BUF,BUFSIZE,OUT) == 0 \
+ ? (*(OUT) == NULL ? -1 : 0) : -1)
# else
/* POSIX drafts? */
# ifdef GETPWNAM_R_RETURNS_INT
-# define k5_getpwnam_r(NAME, REC, BUF, BUFSIZE, OUT) \
- (getpwnam_r(NAME,REC,BUF,BUFSIZE) == 0 \
- ? (*(OUT) = REC, 0) \
- : (*(OUT) = NULL, -1))
+# define k5_getpwnam_r(NAME, REC, BUF, BUFSIZE, OUT) \
+ (getpwnam_r(NAME,REC,BUF,BUFSIZE) == 0 \
+ ? (*(OUT) = REC, 0) \
+ : (*(OUT) = NULL, -1))
# else
# define k5_getpwnam_r(NAME, REC, BUF, BUFSIZE, OUT) \
- (*(OUT) = getpwnam_r(NAME,REC,BUF,BUFSIZE), *(OUT) == NULL ? -1 : 0)
+ (*(OUT) = getpwnam_r(NAME,REC,BUF,BUFSIZE), *(OUT) == NULL ? -1 : 0)
# endif
# endif
#else /* no getpwnam_r, or can't figure out #args or return type */
/* Will get warnings about unused variables. */
# define k5_getpwnam_r(NAME, REC, BUF, BUFSIZE, OUT) \
- (*(OUT) = getpwnam(NAME), *(OUT) == NULL ? -1 : 0)
+ (*(OUT) = getpwnam(NAME), *(OUT) == NULL ? -1 : 0)
#endif
/* int k5_getpwuid_r(uid_t, blah blah) */
#ifdef HAVE_GETPWUID_R
# ifndef GETPWUID_R_4_ARGS
/* POSIX */
-# define k5_getpwuid_r(UID, REC, BUF, BUFSIZE, OUT) \
- getpwuid_r(UID,REC,BUF,BUFSIZE,OUT)
+# define k5_getpwuid_r(UID, REC, BUF, BUFSIZE, OUT) \
+ (getpwuid_r(UID,REC,BUF,BUFSIZE,OUT) == 0 \
+ ? (*(OUT) == NULL ? -1 : 0) : -1)
# else
/* POSIX drafts? Yes, I mean to test GETPWNAM... here. Less junk to
do at configure time. */
# ifdef GETPWNAM_R_RETURNS_INT
-# define k5_getpwuid_r(UID, REC, BUF, BUFSIZE, OUT) \
- (getpwuid_r(UID,REC,BUF,BUFSIZE) == 0 \
- ? (*(OUT) = REC, 0) \
- : (*(OUT) = NULL, -1))
+# define k5_getpwuid_r(UID, REC, BUF, BUFSIZE, OUT) \
+ (getpwuid_r(UID,REC,BUF,BUFSIZE) == 0 \
+ ? (*(OUT) = REC, 0) \
+ : (*(OUT) = NULL, -1))
# else
# define k5_getpwuid_r(UID, REC, BUF, BUFSIZE, OUT) \
- (*(OUT) = getpwuid_r(UID,REC,BUF,BUFSIZE), *(OUT) == NULL ? -1 : 0)
+ (*(OUT) = getpwuid_r(UID,REC,BUF,BUFSIZE), *(OUT) == NULL ? -1 : 0)
# endif
# endif
#else /* no getpwuid_r, or can't figure out #args or return type */
/* Will get warnings about unused variables. */
# define k5_getpwuid_r(UID, REC, BUF, BUFSIZE, OUT) \
- (*(OUT) = getpwuid(UID), *(OUT) == NULL ? -1 : 0)
+ (*(OUT) = getpwuid(UID), *(OUT) == NULL ? -1 : 0)
+#endif
+
+/* Ensure, if possible, that the indicated file descriptor won't be
+ kept open if we exec another process (e.g., launching a ccapi
+ server). If we don't know how to do it... well, just go about our
+ business. Probably most callers won't check the return status
+ anyways. */
+
+#if 0
+static inline int
+set_cloexec_fd(int fd)
+{
+#if defined(F_SETFD)
+# ifdef FD_CLOEXEC
+ if (fcntl(fd, F_SETFD, FD_CLOEXEC) != 0)
+ return errno;
+# else
+ if (fcntl(fd, F_SETFD, 1) != 0)
+ return errno;
+# endif
#endif
+ return 0;
+}
+static inline int
+set_cloexec_file(FILE *f)
+{
+ return set_cloexec_fd(fileno(f));
+}
+#else
+/* Macros make the Sun compiler happier, and all variants of this do a
+ single evaluation of the argument, and fcntl and fileno should
+ produce reasonable error messages on type mismatches, on any system
+ with F_SETFD. */
+#ifdef F_SETFD
+# ifdef FD_CLOEXEC
+# define set_cloexec_fd(FD) (fcntl((FD), F_SETFD, FD_CLOEXEC) ? errno : 0)
+# else
+# define set_cloexec_fd(FD) (fcntl((FD), F_SETFD, 1) ? errno : 0)
+# endif
+#else
+# define set_cloexec_fd(FD) ((FD),0)
+#endif
+#define set_cloexec_file(F) set_cloexec_fd(fileno(F))
+#endif
+
+
+
+/* Since the original ANSI C spec left it undefined whether or
+ how you could copy around a va_list, C 99 added va_copy.
+ For old implementations, let's do our best to fake it.
+
+ XXX Doesn't yet handle implementations with __va_copy (early draft)
+ or GCC's __builtin_va_copy. */
+#if defined(HAS_VA_COPY) || defined(va_copy)
+/* Do nothing. */
+#elif defined(CAN_COPY_VA_LIST)
+#define va_copy(dest, src) ((dest) = (src))
+#else
+/* Assume array type, but still simply copyable.
+
+ There is, theoretically, the possibility that va_start will
+ allocate some storage pointed to by the va_list, and in that case
+ we'll just lose. If anyone cares, we could try to devise a test
+ for that case. */
+#define va_copy(dest, src) memcpy(dest, src, sizeof(va_list))
+#endif
+
+/* Provide strlcpy/strlcat interfaces. */
+#ifndef HAVE_STRLCPY
+#define strlcpy krb5int_strlcpy
+#define strlcat krb5int_strlcat
+extern size_t krb5int_strlcpy(char *dst, const char *src, size_t siz);
+extern size_t krb5int_strlcat(char *dst, const char *src, size_t siz);
+#endif
+
+/* Provide fnmatch interface. */
+#ifndef HAVE_FNMATCH
+#define fnmatch k5_fnmatch
+int k5_fnmatch(const char *pattern, const char *string, int flags);
+#define FNM_NOMATCH 1 /* Match failed. */
+#define FNM_NOSYS 2 /* Function not implemented. */
+#define FNM_NORES 3 /* Out of resources */
+#define FNM_NOESCAPE 0x01 /* Disable backslash escaping. */
+#define FNM_PATHNAME 0x02 /* Slash must be matched by slash. */
+#define FNM_PERIOD 0x04 /* Period must be matched by period. */
+#define FNM_CASEFOLD 0x08 /* Pattern is matched case-insensitive */
+#define FNM_LEADING_DIR 0x10 /* Ignore /<tail> after Imatch. */
+#endif
+
+/* Provide [v]asprintf interfaces. */
+#ifndef HAVE_VSNPRINTF
+#ifdef _WIN32
+static inline int
+vsnprintf(char *str, size_t size, const char *format, va_list args)
+{
+ va_list args_copy;
+ int length;
+
+ va_copy(args_copy, args);
+ length = _vscprintf(format, args_copy);
+ va_end(args_copy);
+ if (size > 0) {
+ _vsnprintf(str, size, format, args);
+ str[size - 1] = '\0';
+ }
+ return length;
+}
+static inline int
+snprintf(char *str, size_t size, const char *format, ...)
+{
+ va_list args;
+ int n;
+
+ va_start(args, format);
+ n = vsnprintf(str, size, format, args);
+ va_end(args);
+ return n;
+}
+#else /* not win32 */
+#error We need an implementation of vsnprintf.
+#endif /* win32? */
+#endif /* no vsnprintf */
+
+#ifndef HAVE_VASPRINTF
+
+extern int krb5int_vasprintf(char **, const char *, va_list)
+#if !defined(__cplusplus) && (__GNUC__ > 2)
+ __attribute__((__format__(__printf__, 2, 0)))
+#endif
+ ;
+extern int krb5int_asprintf(char **, const char *, ...)
+#if !defined(__cplusplus) && (__GNUC__ > 2)
+ __attribute__((__format__(__printf__, 2, 3)))
+#endif
+ ;
+
+#define vasprintf krb5int_vasprintf
+/* Assume HAVE_ASPRINTF iff HAVE_VASPRINTF. */
+#define asprintf krb5int_asprintf
+
+#elif defined(NEED_VASPRINTF_PROTO)
+
+extern int vasprintf(char **, const char *, va_list)
+#if !defined(__cplusplus) && (__GNUC__ > 2)
+ __attribute__((__format__(__printf__, 2, 0)))
+#endif
+ ;
+extern int asprintf(char **, const char *, ...)
+#if !defined(__cplusplus) && (__GNUC__ > 2)
+ __attribute__((__format__(__printf__, 2, 3)))
+#endif
+ ;
+
+#endif /* have vasprintf and prototype? */
+
+/* Return true if the snprintf return value RESULT reflects a buffer
+ overflow for the buffer size SIZE.
+
+ We cast the result to unsigned int for two reasons. First, old
+ implementations of snprintf (such as the one in Solaris 9 and
+ prior) return -1 on a buffer overflow. Casting the result to -1
+ will convert that value to UINT_MAX, which should compare larger
+ than any reasonable buffer size. Second, comparing signed and
+ unsigned integers will generate warnings with some compilers, and
+ can have unpredictable results, particularly when the relative
+ widths of the types is not known (size_t may be the same width as
+ int or larger).
+*/
+#define SNPRINTF_OVERFLOW(result, size) \
+ ((unsigned int)(result) >= (size_t)(size))
+
+#ifndef HAVE_MKSTEMP
+extern int krb5int_mkstemp(char *);
+#define mkstemp krb5int_mkstemp
+#endif
+
+#ifndef HAVE_GETTIMEOFDAY
+extern int krb5int_gettimeofday(struct timeval *tp, void *ignore);
+#define gettimeofday krb5int_gettimeofday
+#endif
+
+extern void krb5int_zap(void *ptr, size_t len);
+
+/*
+ * Split a path into parent directory and basename. Either output parameter
+ * may be NULL if the caller doesn't need it. parent_out will be empty if path
+ * has no basename. basename_out will be empty if path ends with a path
+ * separator. Returns 0 on success or ENOMEM on allocation failure.
+ */
+long k5_path_split(const char *path, char **parent_out, char **basename_out);
+
+/*
+ * Compose two path components, inserting the platform-appropriate path
+ * separator if needed. If path2 is an absolute path, path1 will be discarded
+ * and path_out will be a copy of path2. Returns 0 on success or ENOMEM on
+ * allocation failure.
+ */
+long k5_path_join(const char *path1, const char *path2, char **path_out);
+
+/* Return 1 if path is absolute, 0 if it is relative. */
+int k5_path_isabs(const char *path);
+
+/*
+ * Localization macros. If we have gettext, define _ appropriately for
+ * translating a string. If we do not have gettext, define _, bindtextdomain,
+ * and setlocale as no-ops. N_ is always a no-op; it marks a string for
+ * extraction to pot files but does not translate it.
+ */
+#ifdef ENABLE_NLS
+#include <libintl.h>
+#include <locale.h>
+#define KRB5_TEXTDOMAIN "mit-krb5"
+#define _(s) dgettext(KRB5_TEXTDOMAIN, s)
+#else
+#define _(s) s
+#define dgettext(d, m) m
+#define ngettext(m1, m2, n) (((n) == 1) ? m1 : m2)
+#define bindtextdomain(p, d)
+#define setlocale(c, l)
+#endif
+#define N_(s) s
#endif /* K5_PLATFORM_H */
projects / krb5.git / blobdiff