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util.cpp
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151 lines (133 loc) · 3.32 KB
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/** \file util.cpp
*
* \author Adam Comley
*
* This file is part of libsqrl. It is released under the MIT license.
* For more details, see the LICENSE file included with this package.
**/
#include "sqrl_internal.h"
#include "version.h"
#include "gcm.h"
#ifdef ARDUINO
#include <RNG.h>
#endif
#ifdef _WIN32
#include <Windows.h>
#endif
namespace libsqrl
{
static bool sqrl_is_initialized = false;
void SqrlInit() {
if( !sqrl_is_initialized ) {
gcm_initialize();
#ifndef ARDUINO
sodium_init();
#endif
sqrl_is_initialized = true;
}
}
int sqrl_mlock( void * const addr, size_t len ) {
#ifndef ARDUINO
return sodium_mlock( addr, len );
#else
return 0;
#endif
}
int sqrl_munlock( void * const addr, size_t len ) {
#ifndef ARDUINO
return sodium_munlock( addr, len );
#else
return 0;
#endif
}
void sqrl_randombytes( void *ptr, size_t len ) {
#ifdef ARDUINO
RNG.rand( (uint8_t*)ptr, len );
#else
randombytes_buf( ptr, len );
#endif
}
uint32_t sqrl_random() {
#ifdef ARDUINO
uint32_t ret = 0;
RNG.rand( (uint8_t*)&ret, 4 );
return ret;
#else
return randombytes_random();
#endif
}
void sqrl_memzero( void *buf, size_t len ) {
#ifdef ARDUINO
size_t i = 0;
uint8_t *ptr = (uint8_t*)buf;
while( i < len ) {
ptr[i] = 0;
i++;
}
#else
sodium_memzero( buf, len );
#endif
}
void * sqrl_malloc( const size_t size ) {
#ifdef ARDUINO
void *ptr;
if( (ptr = malloc( size )) == NULL ) {
return NULL;
}
memset( ptr, 0, size );
return ptr;
#else
return sodium_malloc( size );
#endif
}
void sqrl_free( void *ptr, size_t len ) {
#ifdef ARDUINO
sqrl_memzero( ptr, len );
free( ptr );
#else
sodium_free( ptr );
#endif
}
void sqrl_sleep( int sleepMs ) {
#ifdef UNIX
usleep( sleepMs * 1000 ); // usleep takes sleep time in us (1 millionth of a second)
#endif
#ifdef _WIN32
Sleep( sleepMs );
#endif
}
bool sqrl_parse_key_value( char **strPtr, char **keyPtr, char **valPtr,
size_t *key_len, size_t *val_len, char *sep ) {
if( !*strPtr ) return false;
char *p, *pp;
p = strchr( *strPtr, '=' );
if( p ) {
*keyPtr = *strPtr;
*key_len = p - *keyPtr;
*valPtr = p + 1;
pp = strstr( *valPtr, sep );
if( pp ) {
*val_len = pp - *valPtr;
*strPtr = pp + strlen( sep );
} else {
*val_len = strlen( *valPtr );
*strPtr = NULL;
}
return true;
}
*strPtr = NULL;
return false;
}
size_t Sqrl_Version( char *buffer, size_t buffer_len ) {
static const char *ver = SQRL_LIB_VERSION;
size_t len = strlen( ver );
if( buffer ) {
strncpy( buffer, ver, buffer_len );
}
return len;
}
uint16_t Sqrl_Version_Major() { return SQRL_LIB_VERSION_MAJOR; }
uint16_t Sqrl_Version_Minor() { return SQRL_LIB_VERSION_MINOR; }
uint16_t Sqrl_Version_Build() { return SQRL_LIB_VERSION_BUILD_DATE; }
uint16_t Sqrl_Version_Revision() { return SQRL_LIB_VERSION_REVISION; }
}