Muldersoft/SlunkCrypt
Muldersoft/SlunkCrypt
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Fixed building the library *without* pthread support.

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This commit is contained in:
LoRd_MuldeR 2022-09-20 23:58:45 +02:00
parent cc4b9c8af3
commit 4383c5f858
Signed by: mulder
GPG Key ID: 2B5913365F57E03F
2 changed files with 41 additions and 18 deletions
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20
Makefile
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@ -26,7 +26,7 @@ SUBDIR_LIB := libslunkcrypt
# ---------------------------------------------------------------------------
CONFIG =
LDFLGS = -lpthread
LDFLGS =
CFLAGS = -I$(SUBDIR_LIB)/include -std=gnu99 -Wall -pedantic
ifneq (,$(firstword $(filter 32 64,$(CPU))))
@ -76,20 +76,22 @@ else
SUFFIX :=
endif
ifeq ($(THREAD),0)
CFLAGS += -DSLUNKBUILD_NOTHREADS
endif
ifneq ($(STRIP),0)
LDFLGS += -s
ifneq (,$(firstword $(filter %-w64-mingw32 %w64-windows-gnu,$(MACHINE))))
LDFLGS += -mconsole -municode
endif
ifeq ($(STATIC),1)
LDFLGS += -static
endif
ifneq (,$(firstword $(filter %-w64-mingw32 %w64-windows-gnu,$(MACHINE))))
LDFLGS += -mconsole -municode
ifneq ($(STRIP),0)
LDFLGS += -s
endif
ifeq ($(THREAD),1)
LDFLGS += -lpthread
else
CFLAGS += -DSLUNKBUILD_NOTHREADS
endif
ifneq (,$(firstword $(filter %-unknown-haiku,$(MACHINE))))

39
libslunkcrypt/src/junk.c
View File

@ -19,12 +19,6 @@
#include <fcntl.h>
#include <limits.h>
/* PThread */
#if defined(_MSC_VER) && !defined(_DLL)
# define PTW32_STATIC_LIB 1
#endif
#include <pthread.h>
/* Utils */
static INLINE size_t MIN_SIZE(const size_t a, const size_t b) { return (a > b) ? b : a; }
@ -37,7 +31,6 @@ static INLINE size_t MIN_SIZE(const size_t a, const size_t b) { return (a > b) ?
# include <io.h>
#else
# include <unistd.h>
# include <pthread.h>
#endif
/* detect compiler destructor support */
@ -67,6 +60,34 @@ static INLINE size_t MIN_SIZE(const size_t a, const size_t b) { return (a > b) ?
# pragma message("Function explicit_bzero() is *not* available -> using fallback!")
#endif
// ==========================================================================
// One-time initialization
// ==========================================================================
/* atomic memory access */
#if defined(_WIN32)
# define ATOMIC_EXCHANGE(X,Y) InterlockedExchange((X),(Y))
# define ATOMIC_COMPARE_EXCHANGE(X,Y,Z) InterlockedCompareExchange((X),(Y),(Z))
#else
# define ATOMIC_EXCHANGE(X,Y) __sync_lock_test_and_set((X),(Y))
# define ATOMIC_COMPARE_EXCHANGE(X,Y,Z) __sync_val_compare_and_swap((X),(Z),(Y))
#endif
/* execute initialization function once */
static void initialize_once(volatile long *const once_flag, void (*const init_routine)(void))
{
long state;
while ((state = ATOMIC_COMPARE_EXCHANGE(once_flag, -1, 0)) != 0)
{
if (state > 0)
{
return; /*already initialized*/
}
}
init_routine();
ATOMIC_EXCHANGE(once_flag, 1);
}
// ==========================================================================
// Random bytes
// ==========================================================================
@ -74,7 +95,7 @@ static INLINE size_t MIN_SIZE(const size_t a, const size_t b) { return (a > b) ?
#define MAX_COUNT 1048576U
/* Global state */
static pthread_once_t s_random_is_initialized = PTHREAD_ONCE_INIT;
static volatile long s_random_is_initialized = 0L;
#if defined(_WIN32)
typedef BOOLEAN(WINAPI *ptr_genrandom_t)(void *buffer, ULONG length);
static HMODULE s_advapi32 = NULL;
@ -140,7 +161,7 @@ init_completed: ;
size_t slunkcrypt_random_bytes(uint8_t *const buffer, const size_t length)
{
size_t offset;
pthread_once(&s_random_is_initialized, init_random_source);
initialize_once(&s_random_is_initialized, init_random_source);
#ifdef HAVE_WIN32RTLGENRANDOM
if (s_genrandom)
{