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Per C11 standard (ISO/IEC 9899:2011): K.3.7.1.1 1. Copying shall not take place between objects that overlap; 2. If there is a runtime-constraint violation, the memcpy_s function stores zeros in the first s1max characters of the object; 3. The memcpy_s function returns zero if there was no runtime-constraint violation. Otherwise, a nonzero value is returned. Tracked-On: #4885 Signed-off-by: Victor Sun <victor.sun@intel.com> Reviewed-by: Yonghua Huang <yonghua.huang@intel.com> Reviewed-by: Yin Fengwei <fengwei.yin@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef RTL_H
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#define RTL_H
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#include <types.h>
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union u_qword {
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struct {
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uint32_t low;
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uint32_t high;
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} dwords;
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uint64_t qword;
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};
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/* MACRO related to string */
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#define ULONG_MAX ((uint64_t)(~0UL)) /* 0xFFFFFFFF */
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#define LONG_MAX (ULONG_MAX >> 1U) /* 0x7FFFFFFF */
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#define LONG_MIN (~LONG_MAX) /* 0x80000000 */
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static inline bool is_space(char c)
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{
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return ((c == ' ') || (c == '\t'));
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}
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/* Function prototypes */
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int32_t strcmp(const char *s1_arg, const char *s2_arg);
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int32_t strncmp(const char *s1_arg, const char *s2_arg, size_t n_arg);
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char *strncpy_s(char *d_arg, size_t dmax, const char *s_arg, size_t slen_arg);
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char *strchr(char *s_arg, char ch);
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size_t strnlen_s(const char *str_arg, size_t maxlen_arg);
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void *memset(void *base, uint8_t v, size_t n);
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int32_t memcpy_s(void *d, size_t dmax, const void *s, size_t slen);
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int64_t strtol_deci(const char *nptr);
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uint64_t strtoul_hex(const char *nptr);
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char *strstr_s(const char *str1, size_t maxlen1,
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const char *str2, size_t maxlen2);
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#endif /* RTL_H */
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