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157 lines
5.5 KiB
157 lines
5.5 KiB
/**
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* Copyright 2020 Huawei Technologies Co., Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SEC_INPUT_H_E950DA2C_902F_4B15_BECD_948E99090D9C
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#define SEC_INPUT_H_E950DA2C_902F_4B15_BECD_948E99090D9C
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#include "securecutil.h"
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#define SECUREC_SCANF_EINVAL (-1)
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#define SECUREC_SCANF_ERROR_PARA (-2)
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/* for internal stream flag */
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#define SECUREC_MEM_STR_FLAG 0X01
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#define SECUREC_FILE_STREAM_FLAG 0X02
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#define SECUREC_FROM_STDIN_FLAG 0X04
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#define SECUREC_LOAD_FILE_TO_MEM_FLAG 0X08
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#define SECUREC_UNINITIALIZED_FILE_POS (-1)
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#define SECUREC_BOM_HEADER_SIZE 2
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#define SECUREC_BOM_HEADER_BE_1ST 0xFEU
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#define SECUREC_BOM_HEADER_BE_2ST 0xFFU
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#define SECUREC_BOM_HEADER_LE_1ST 0xFFU
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#define SECUREC_BOM_HEADER_LE_2ST 0xFEU
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#define SECUREC_UTF8_BOM_HEADER_SIZE 3
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#define SECUREC_UTF8_BOM_HEADER_1ST 0xEFU
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#define SECUREC_UTF8_BOM_HEADER_2ND 0xBBU
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#define SECUREC_UTF8_BOM_HEADER_3RD 0xBFU
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#define SECUREC_UTF8_LEAD_1ST 0xE0
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#define SECUREC_UTF8_LEAD_2ND 0x80
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typedef struct {
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unsigned int flag; /* mark the properties of input stream */
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int count; /* the size of buffered string in bytes */
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const char *cur; /* the pointer to next read position */
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char *base; /* the pointer to the header of buffered string */
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#if SECUREC_ENABLE_SCANF_FILE
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FILE *pf; /* the file pointer */
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long oriFilePos; /* the original position of file offset when fscanf is called */
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int fileRealRead;
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#if defined(SECUREC_NO_STD_UNGETC)
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unsigned int lastChar; /* the char code of last input */
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int fUnget; /* the boolean flag of pushing a char back to read stream */
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#endif
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#endif
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} SecFileStream;
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#define SECUREC_INIT_SEC_FILE_STREAM_COMMON(fileStream, streamFlag, curPtr, strCount) do { \
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(fileStream).flag = (streamFlag); \
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(fileStream).count = (strCount); \
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(fileStream).cur = (curPtr); \
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(fileStream).base = NULL; \
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} SECUREC_WHILE_ZERO
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#if SECUREC_ENABLE_SCANF_FILE
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#if defined(SECUREC_NO_STD_UNGETC)
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/* This initialization for eliminating redundant initialization.
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* Compared with the previous version initialization 0,
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* the current code causes the binary size to increase by some bytes
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*/
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#define SECUREC_INIT_SEC_FILE_STREAM(fileStream, streamFlag, stream, filePos, curPtr, strCount) do { \
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SECUREC_INIT_SEC_FILE_STREAM_COMMON((fileStream), (streamFlag), (curPtr), (strCount)); \
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(fileStream).pf = (stream); \
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(fileStream).oriFilePos = (filePos); \
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(fileStream).fileRealRead = 0; \
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(fileStream).lastChar = 0; \
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(fileStream).fUnget = 0; \
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} SECUREC_WHILE_ZERO
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#else
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#define SECUREC_INIT_SEC_FILE_STREAM(fileStream, streamFlag, stream, filePos, curPtr, strCount) do { \
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SECUREC_INIT_SEC_FILE_STREAM_COMMON((fileStream), (streamFlag), (curPtr), (strCount)); \
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(fileStream).pf = (stream); \
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(fileStream).oriFilePos = (filePos); \
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(fileStream).fileRealRead = 0; \
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} SECUREC_WHILE_ZERO
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#endif
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#else /* No SECUREC_ENABLE_SCANF_FILE */
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#define SECUREC_INIT_SEC_FILE_STREAM(fileStream, streamFlag, stream, filePos, curPtr, strCount) do { \
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SECUREC_INIT_SEC_FILE_STREAM_COMMON((fileStream), (streamFlag), (curPtr), (strCount)); \
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} SECUREC_WHILE_ZERO
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern int SecInputS(SecFileStream *stream, const char *cFormat, va_list argList);
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extern void SecClearDestBuf(const char *buffer, const char *format, va_list argList);
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#if SECUREC_IN_KERNEL == 0
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extern int SecInputSW(SecFileStream *stream, const wchar_t *cFormat, va_list argList);
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extern void SecClearDestBufW(const wchar_t *buffer, const wchar_t *format, va_list argList);
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#endif
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/* 20150105 For software and hardware decoupling,such as UMG */
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#if defined(SECUREC_SYSAPI4VXWORKS)
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#ifdef feof
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#undef feof
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#endif
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extern int feof(FILE *stream);
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#endif
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#if defined(SECUREC_SYSAPI4VXWORKS) || defined(SECUREC_CTYPE_MACRO_ADAPT)
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#ifndef isspace
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#define isspace(c) (((c) == ' ') || ((c) == '\t') || ((c) == '\r') || ((c) == '\n'))
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#endif
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#ifndef iswspace
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#define iswspace(c) (((c) == L' ') || ((c) == L'\t') || ((c) == L'\r') || ((c) == L'\n'))
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#endif
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#ifndef isascii
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#define isascii(c) (((unsigned char)(c)) <= 0x7f)
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#endif
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#ifndef isupper
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#define isupper(c) ((c) >= 'A' && (c) <= 'Z')
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#endif
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#ifndef islower
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#define islower(c) ((c) >= 'a' && (c) <= 'z')
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#endif
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#ifndef isalpha
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#define isalpha(c) (isupper(c) || (islower(c)))
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#endif
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#ifndef isdigit
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#define isdigit(c) ((c) >= '0' && (c) <= '9')
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#endif
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#ifndef isxupper
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#define isxupper(c) ((c) >= 'A' && (c) <= 'F')
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#endif
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#ifndef isxlower
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#define isxlower(c) ((c) >= 'a' && (c) <= 'f')
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#endif
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#ifndef isxdigit
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#define isxdigit(c) (isdigit(c) || isxupper(c) || isxlower(c))
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#endif
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#endif
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#ifdef __cplusplus
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}
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#endif
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/* Reserved file operation macro interface */
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#define SECUREC_LOCK_FILE(s)
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#define SECUREC_UNLOCK_FILE(s)
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#define SECUREC_LOCK_STDIN(i, s)
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#define SECUREC_UNLOCK_STDIN(i, s)
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#endif
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