forked from mindspore-Ecosystem/mindspore
523 lines
20 KiB
C
523 lines
20 KiB
C
/**
|
|
* Copyright 2020 Huawei Technologies Co., Ltd
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#define SECUREC_INLINE_DO_MEMSET 1
|
|
|
|
#include "securecutil.h"
|
|
|
|
#ifndef SECUREC_MEMSET_WITH_PERFORMANCE
|
|
#define SECUREC_MEMSET_WITH_PERFORMANCE 0
|
|
#endif
|
|
|
|
#define SECUREC_MEMSET_PARAM_OK(dest, destMax, count) (SECUREC_LIKELY((count) <= (destMax) && \
|
|
(dest) != NULL && (destMax) <= SECUREC_MEM_MAX_LEN))
|
|
|
|
|
|
#if SECUREC_WITH_PERFORMANCE_ADDONS || SECUREC_MEMSET_WITH_PERFORMANCE
|
|
/*
|
|
* Determine whether the address is 8-byte aligned, use static to increase performance
|
|
* return 0 is aligned
|
|
*/
|
|
static int SecIsAddrAligned8(const void *addr, const void *zeroAddr)
|
|
{
|
|
return (int)(((size_t)((const char*)addr - (const char*)zeroAddr)) & 7); /* use 7 to check aligned 8 */
|
|
}
|
|
|
|
/* use union to clear strict-aliasing warning */
|
|
typedef union {
|
|
SecStrBuf32 buf32;
|
|
SecStrBuf31 buf31;
|
|
SecStrBuf30 buf30;
|
|
SecStrBuf29 buf29;
|
|
SecStrBuf28 buf28;
|
|
SecStrBuf27 buf27;
|
|
SecStrBuf26 buf26;
|
|
SecStrBuf25 buf25;
|
|
SecStrBuf24 buf24;
|
|
SecStrBuf23 buf23;
|
|
SecStrBuf22 buf22;
|
|
SecStrBuf21 buf21;
|
|
SecStrBuf20 buf20;
|
|
SecStrBuf19 buf19;
|
|
SecStrBuf18 buf18;
|
|
SecStrBuf17 buf17;
|
|
SecStrBuf16 buf16;
|
|
SecStrBuf15 buf15;
|
|
SecStrBuf14 buf14;
|
|
SecStrBuf13 buf13;
|
|
SecStrBuf12 buf12;
|
|
SecStrBuf11 buf11;
|
|
SecStrBuf10 buf10;
|
|
SecStrBuf9 buf9;
|
|
SecStrBuf8 buf8;
|
|
SecStrBuf7 buf7;
|
|
SecStrBuf6 buf6;
|
|
SecStrBuf5 buf5;
|
|
SecStrBuf4 buf4;
|
|
SecStrBuf3 buf3;
|
|
SecStrBuf2 buf2;
|
|
SecStrBuf1 buf1;
|
|
} SecStrBuf32Union;
|
|
/* C standard initializes the first member of the consortium. */
|
|
static const SecStrBuf32 g_allZero = {{
|
|
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
|
|
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
|
|
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
|
|
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'
|
|
}};
|
|
static const SecStrBuf32 g_allFF = {{
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
|
|
}};
|
|
|
|
static const SecStrBuf32Union *SecStrictAliasingCast(const SecStrBuf32 *buf)
|
|
{
|
|
return (const SecStrBuf32Union *)buf;
|
|
}
|
|
|
|
#ifndef SECUREC_MEMSET_THRESHOLD_SIZE
|
|
#define SECUREC_MEMSET_THRESHOLD_SIZE 32UL
|
|
#endif
|
|
|
|
#define SECUREC_UNALIGNED_SET do { \
|
|
char *pcDest = (char *)dest; \
|
|
switch (count) { \
|
|
case 32: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 31: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 30: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 29: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 28: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 27: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 26: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 25: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 24: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 23: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 22: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 21: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 20: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 19: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 18: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 17: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 16: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 15: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 14: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 13: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 12: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 11: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 10: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 9: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 8: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 7: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 6: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 5: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 4: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 3: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 2: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
case 1: \
|
|
*(pcDest++) = (char)c; \
|
|
/* fall-through */ /* FALLTHRU */ \
|
|
default: \
|
|
break; \
|
|
} \
|
|
} SECUREC_WHILE_ZERO
|
|
|
|
#define SECUREC_ALIGNED_SET_OPT_ZERO_FF do { \
|
|
switch (c) { \
|
|
case 0: \
|
|
switch (count) { \
|
|
case 1: \
|
|
*(SecStrBuf1 *)dest = *(const SecStrBuf1 *)(&((SecStrictAliasingCast(&g_allZero))->buf1)); \
|
|
break; \
|
|
case 2: \
|
|
*(SecStrBuf2 *)dest = *(const SecStrBuf2 *)(&((SecStrictAliasingCast(&g_allZero))->buf2)); \
|
|
break; \
|
|
case 3: \
|
|
*(SecStrBuf3 *)dest = *(const SecStrBuf3 *)(&((SecStrictAliasingCast(&g_allZero))->buf3)); \
|
|
break; \
|
|
case 4: \
|
|
*(SecStrBuf4 *)dest = *(const SecStrBuf4 *)(&((SecStrictAliasingCast(&g_allZero))->buf4)); \
|
|
break; \
|
|
case 5: \
|
|
*(SecStrBuf5 *)dest = *(const SecStrBuf5 *)(&((SecStrictAliasingCast(&g_allZero))->buf5)); \
|
|
break; \
|
|
case 6: \
|
|
*(SecStrBuf6 *)dest = *(const SecStrBuf6 *)(&((SecStrictAliasingCast(&g_allZero))->buf6)); \
|
|
break; \
|
|
case 7: \
|
|
*(SecStrBuf7 *)dest = *(const SecStrBuf7 *)(&((SecStrictAliasingCast(&g_allZero))->buf7)); \
|
|
break; \
|
|
case 8: \
|
|
*(SecStrBuf8 *)dest = *(const SecStrBuf8 *)(&((SecStrictAliasingCast(&g_allZero))->buf8)); \
|
|
break; \
|
|
case 9: \
|
|
*(SecStrBuf9 *)dest = *(const SecStrBuf9 *)(&((SecStrictAliasingCast(&g_allZero))->buf9)); \
|
|
break; \
|
|
case 10: \
|
|
*(SecStrBuf10 *)dest = *(const SecStrBuf10 *)(&((SecStrictAliasingCast(&g_allZero))->buf10)); \
|
|
break; \
|
|
case 11: \
|
|
*(SecStrBuf11 *)dest = *(const SecStrBuf11 *)(&((SecStrictAliasingCast(&g_allZero))->buf11)); \
|
|
break; \
|
|
case 12: \
|
|
*(SecStrBuf12 *)dest = *(const SecStrBuf12 *)(&((SecStrictAliasingCast(&g_allZero))->buf12)); \
|
|
break; \
|
|
case 13: \
|
|
*(SecStrBuf13 *)dest = *(const SecStrBuf13 *)(&((SecStrictAliasingCast(&g_allZero))->buf13)); \
|
|
break; \
|
|
case 14: \
|
|
*(SecStrBuf14 *)dest = *(const SecStrBuf14 *)(&((SecStrictAliasingCast(&g_allZero))->buf14)); \
|
|
break; \
|
|
case 15: \
|
|
*(SecStrBuf15 *)dest = *(const SecStrBuf15 *)(&((SecStrictAliasingCast(&g_allZero))->buf15)); \
|
|
break; \
|
|
case 16: \
|
|
*(SecStrBuf16 *)dest = *(const SecStrBuf16 *)(&((SecStrictAliasingCast(&g_allZero))->buf16)); \
|
|
break; \
|
|
case 17: \
|
|
*(SecStrBuf17 *)dest = *(const SecStrBuf17 *)(&((SecStrictAliasingCast(&g_allZero))->buf17)); \
|
|
break; \
|
|
case 18: \
|
|
*(SecStrBuf18 *)dest = *(const SecStrBuf18 *)(&((SecStrictAliasingCast(&g_allZero))->buf18)); \
|
|
break; \
|
|
case 19: \
|
|
*(SecStrBuf19 *)dest = *(const SecStrBuf19 *)(&((SecStrictAliasingCast(&g_allZero))->buf19)); \
|
|
break; \
|
|
case 20: \
|
|
*(SecStrBuf20 *)dest = *(const SecStrBuf20 *)(&((SecStrictAliasingCast(&g_allZero))->buf20)); \
|
|
break; \
|
|
case 21: \
|
|
*(SecStrBuf21 *)dest = *(const SecStrBuf21 *)(&((SecStrictAliasingCast(&g_allZero))->buf21)); \
|
|
break; \
|
|
case 22: \
|
|
*(SecStrBuf22 *)dest = *(const SecStrBuf22 *)(&((SecStrictAliasingCast(&g_allZero))->buf22)); \
|
|
break; \
|
|
case 23: \
|
|
*(SecStrBuf23 *)dest = *(const SecStrBuf23 *)(&((SecStrictAliasingCast(&g_allZero))->buf23)); \
|
|
break; \
|
|
case 24: \
|
|
*(SecStrBuf24 *)dest = *(const SecStrBuf24 *)(&((SecStrictAliasingCast(&g_allZero))->buf24)); \
|
|
break; \
|
|
case 25: \
|
|
*(SecStrBuf25 *)dest = *(const SecStrBuf25 *)(&((SecStrictAliasingCast(&g_allZero))->buf25)); \
|
|
break; \
|
|
case 26: \
|
|
*(SecStrBuf26 *)dest = *(const SecStrBuf26 *)(&((SecStrictAliasingCast(&g_allZero))->buf26)); \
|
|
break; \
|
|
case 27: \
|
|
*(SecStrBuf27 *)dest = *(const SecStrBuf27 *)(&((SecStrictAliasingCast(&g_allZero))->buf27)); \
|
|
break; \
|
|
case 28: \
|
|
*(SecStrBuf28 *)dest = *(const SecStrBuf28 *)(&((SecStrictAliasingCast(&g_allZero))->buf28)); \
|
|
break; \
|
|
case 29: \
|
|
*(SecStrBuf29 *)dest = *(const SecStrBuf29 *)(&((SecStrictAliasingCast(&g_allZero))->buf29)); \
|
|
break; \
|
|
case 30: \
|
|
*(SecStrBuf30 *)dest = *(const SecStrBuf30 *)(&((SecStrictAliasingCast(&g_allZero))->buf30)); \
|
|
break; \
|
|
case 31: \
|
|
*(SecStrBuf31 *)dest = *(const SecStrBuf31 *)(&((SecStrictAliasingCast(&g_allZero))->buf31)); \
|
|
break; \
|
|
case 32: \
|
|
*(SecStrBuf32 *)dest = *(const SecStrBuf32 *)(&((SecStrictAliasingCast(&g_allZero))->buf32)); \
|
|
break; \
|
|
default: \
|
|
break; \
|
|
} \
|
|
break; \
|
|
case 0xFF: \
|
|
switch (count) { \
|
|
case 1: \
|
|
*(SecStrBuf1 *)dest = *(const SecStrBuf1 *)(&((SecStrictAliasingCast(&g_allFF))->buf1)); \
|
|
break; \
|
|
case 2: \
|
|
*(SecStrBuf2 *)dest = *(const SecStrBuf2 *)(&((SecStrictAliasingCast(&g_allFF))->buf2)); \
|
|
break; \
|
|
case 3: \
|
|
*(SecStrBuf3 *)dest = *(const SecStrBuf3 *)(&((SecStrictAliasingCast(&g_allFF))->buf3)); \
|
|
break; \
|
|
case 4: \
|
|
*(SecStrBuf4 *)dest = *(const SecStrBuf4 *)(&((SecStrictAliasingCast(&g_allFF))->buf4)); \
|
|
break; \
|
|
case 5: \
|
|
*(SecStrBuf5 *)dest = *(const SecStrBuf5 *)(&((SecStrictAliasingCast(&g_allFF))->buf5)); \
|
|
break; \
|
|
case 6: \
|
|
*(SecStrBuf6 *)dest = *(const SecStrBuf6 *)(&((SecStrictAliasingCast(&g_allFF))->buf6)); \
|
|
break; \
|
|
case 7: \
|
|
*(SecStrBuf7 *)dest = *(const SecStrBuf7 *)(&((SecStrictAliasingCast(&g_allFF))->buf7)); \
|
|
break; \
|
|
case 8: \
|
|
*(SecStrBuf8 *)dest = *(const SecStrBuf8 *)(&((SecStrictAliasingCast(&g_allFF))->buf8)); \
|
|
break; \
|
|
case 9: \
|
|
*(SecStrBuf9 *)dest = *(const SecStrBuf9 *)(&((SecStrictAliasingCast(&g_allFF))->buf9)); \
|
|
break; \
|
|
case 10: \
|
|
*(SecStrBuf10 *)dest = *(const SecStrBuf10 *)(&((SecStrictAliasingCast(&g_allFF))->buf10)); \
|
|
break; \
|
|
case 11: \
|
|
*(SecStrBuf11 *)dest = *(const SecStrBuf11 *)(&((SecStrictAliasingCast(&g_allFF))->buf11)); \
|
|
break; \
|
|
case 12: \
|
|
*(SecStrBuf12 *)dest = *(const SecStrBuf12 *)(&((SecStrictAliasingCast(&g_allFF))->buf12)); \
|
|
break; \
|
|
case 13: \
|
|
*(SecStrBuf13 *)dest = *(const SecStrBuf13 *)(&((SecStrictAliasingCast(&g_allFF))->buf13)); \
|
|
break; \
|
|
case 14: \
|
|
*(SecStrBuf14 *)dest = *(const SecStrBuf14 *)(&((SecStrictAliasingCast(&g_allFF))->buf14)); \
|
|
break; \
|
|
case 15: \
|
|
*(SecStrBuf15 *)dest = *(const SecStrBuf15 *)(&((SecStrictAliasingCast(&g_allFF))->buf15)); \
|
|
break; \
|
|
case 16: \
|
|
*(SecStrBuf16 *)dest = *(const SecStrBuf16 *)(&((SecStrictAliasingCast(&g_allFF))->buf16)); \
|
|
break; \
|
|
case 17: \
|
|
*(SecStrBuf17 *)dest = *(const SecStrBuf17 *)(&((SecStrictAliasingCast(&g_allFF))->buf17)); \
|
|
break; \
|
|
case 18: \
|
|
*(SecStrBuf18 *)dest = *(const SecStrBuf18 *)(&((SecStrictAliasingCast(&g_allFF))->buf18)); \
|
|
break; \
|
|
case 19: \
|
|
*(SecStrBuf19 *)dest = *(const SecStrBuf19 *)(&((SecStrictAliasingCast(&g_allFF))->buf19)); \
|
|
break; \
|
|
case 20: \
|
|
*(SecStrBuf20 *)dest = *(const SecStrBuf20 *)(&((SecStrictAliasingCast(&g_allFF))->buf20)); \
|
|
break; \
|
|
case 21: \
|
|
*(SecStrBuf21 *)dest = *(const SecStrBuf21 *)(&((SecStrictAliasingCast(&g_allFF))->buf21)); \
|
|
break; \
|
|
case 22: \
|
|
*(SecStrBuf22 *)dest = *(const SecStrBuf22 *)(&((SecStrictAliasingCast(&g_allFF))->buf22)); \
|
|
break; \
|
|
case 23: \
|
|
*(SecStrBuf23 *)dest = *(const SecStrBuf23 *)(&((SecStrictAliasingCast(&g_allFF))->buf23)); \
|
|
break; \
|
|
case 24: \
|
|
*(SecStrBuf24 *)dest = *(const SecStrBuf24 *)(&((SecStrictAliasingCast(&g_allFF))->buf24)); \
|
|
break; \
|
|
case 25: \
|
|
*(SecStrBuf25 *)dest = *(const SecStrBuf25 *)(&((SecStrictAliasingCast(&g_allFF))->buf25)); \
|
|
break; \
|
|
case 26: \
|
|
*(SecStrBuf26 *)dest = *(const SecStrBuf26 *)(&((SecStrictAliasingCast(&g_allFF))->buf26)); \
|
|
break; \
|
|
case 27: \
|
|
*(SecStrBuf27 *)dest = *(const SecStrBuf27 *)(&((SecStrictAliasingCast(&g_allFF))->buf27)); \
|
|
break; \
|
|
case 28: \
|
|
*(SecStrBuf28 *)dest = *(const SecStrBuf28 *)(&((SecStrictAliasingCast(&g_allFF))->buf28)); \
|
|
break; \
|
|
case 29: \
|
|
*(SecStrBuf29 *)dest = *(const SecStrBuf29 *)(&((SecStrictAliasingCast(&g_allFF))->buf29)); \
|
|
break; \
|
|
case 30: \
|
|
*(SecStrBuf30 *)dest = *(const SecStrBuf30 *)(&((SecStrictAliasingCast(&g_allFF))->buf30)); \
|
|
break; \
|
|
case 31: \
|
|
*(SecStrBuf31 *)dest = *(const SecStrBuf31 *)(&((SecStrictAliasingCast(&g_allFF))->buf31)); \
|
|
break; \
|
|
case 32: \
|
|
*(SecStrBuf32 *)dest = *(const SecStrBuf32 *)(&((SecStrictAliasingCast(&g_allFF))->buf32)); \
|
|
break; \
|
|
default: \
|
|
break; \
|
|
} \
|
|
break; \
|
|
default: \
|
|
SECUREC_UNALIGNED_SET; \
|
|
} /* END switch */ \
|
|
} SECUREC_WHILE_ZERO
|
|
#endif
|
|
|
|
/*
|
|
* Handling errors
|
|
*/
|
|
static errno_t SecMemsetError(void *dest, size_t destMax, int c, size_t count)
|
|
{
|
|
if (destMax == 0 || destMax > SECUREC_MEM_MAX_LEN) {
|
|
SECUREC_ERROR_INVALID_RANGE("memset_s");
|
|
return ERANGE;
|
|
}
|
|
if (dest == NULL) {
|
|
SECUREC_ERROR_INVALID_PARAMTER("memset_s");
|
|
return EINVAL;
|
|
}
|
|
if (count > destMax) {
|
|
(void)memset(dest, c, destMax); /* set entire buffer to value c */
|
|
SECUREC_ERROR_INVALID_RANGE("memset_s");
|
|
return ERANGE_AND_RESET;
|
|
}
|
|
return EOK;
|
|
}
|
|
|
|
#if SECUREC_WITH_PERFORMANCE_ADDONS || SECUREC_MEMSET_WITH_PERFORMANCE
|
|
/*
|
|
* Performance optimization
|
|
*/
|
|
static void SecDoMemsetOpt(void *dest, int c, size_t count)
|
|
{
|
|
if (count > SECUREC_MEMSET_THRESHOLD_SIZE) {
|
|
SecDoMemset(dest, c, count);
|
|
} else {
|
|
if (SECUREC_ADDR_ALIGNED_8(dest)) {
|
|
/* use struct assignment */
|
|
SECUREC_ALIGNED_SET_OPT_ZERO_FF;
|
|
} else {
|
|
SECUREC_UNALIGNED_SET;
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* <FUNCTION DESCRIPTION>
|
|
* The memset_s function copies the value of c (converted to an unsigned char)
|
|
* into each of the first count characters of the object pointed to by dest.
|
|
*
|
|
* <INPUT PARAMETERS>
|
|
* dest Pointer to destination.
|
|
* destMax The size of the buffer.
|
|
* c Character to set.
|
|
* count Number of characters.
|
|
*
|
|
* <OUTPUT PARAMETERS>
|
|
* dest buffer is uptdated.
|
|
*
|
|
* <RETURN VALUE>
|
|
* EOK Success
|
|
* EINVAL dest == NULL and destMax != 0 and destMax <= SECUREC_MEM_MAX_LEN
|
|
* ERANGE destMax is 0 or destMax > SECUREC_MEM_MAX_LEN
|
|
* ERANGE_AND_RESET count > destMax and destMax != 0 and destMax <= SECUREC_MEM_MAX_LEN and dest != NULL
|
|
*
|
|
* if return ERANGE_AND_RESET then fill dest to c ,fill length is destMax
|
|
*/
|
|
errno_t memset_s(void *dest, size_t destMax, int c, size_t count)
|
|
{
|
|
if (SECUREC_MEMSET_PARAM_OK(dest, destMax, count)) {
|
|
#if SECUREC_MEMSET_WITH_PERFORMANCE
|
|
SecDoMemsetOpt(dest, c, count);
|
|
#else
|
|
SecDoMemset(dest, c, count);
|
|
#endif
|
|
return EOK;
|
|
} else {
|
|
/* meet some runtime violation, return error code */
|
|
return SecMemsetError(dest, destMax, c, count);
|
|
}
|
|
}
|
|
|
|
#if SECUREC_IN_KERNEL
|
|
EXPORT_SYMBOL(memset_s);
|
|
#endif
|
|
|
|
#if SECUREC_WITH_PERFORMANCE_ADDONS
|
|
/*
|
|
* Performance optimization
|
|
*/
|
|
errno_t memset_sOptAsm(void *dest, size_t destMax, int c, size_t count)
|
|
{
|
|
if (SECUREC_MEMSET_PARAM_OK(dest, destMax, count)) {
|
|
SecDoMemsetOpt(dest, c, count);
|
|
return EOK;
|
|
}
|
|
/* meet some runtime violation, return error code */
|
|
return SecMemsetError(dest, destMax, c, count);
|
|
}
|
|
|
|
/*
|
|
* Performance optimization
|
|
*/
|
|
errno_t memset_sOptTc(void *dest, size_t destMax, int c, size_t count)
|
|
{
|
|
if (SECUREC_LIKELY(count <= destMax && dest != NULL)) {
|
|
SecDoMemsetOpt(dest, c, count);
|
|
return EOK;
|
|
}
|
|
/* meet some runtime violation, return error code */
|
|
return SecMemsetError(dest, destMax, c, count);
|
|
}
|
|
#endif
|
|
|