文本文件转为二进制文件

源代码：

#include <stdio.h>
#include <stdlib.h>

#define SUCCESS 0
#define FAILURE 1

#define IN
#define OUT
#define INOUT

typedef unsigned long BOOL_T;
typedef unsigned char UCHAR;
typedef unsigned long ULONG;

#define BOOL_TRUE (BOOL_T)1
#define BOOL_FALSE (BOOL_T)0

static inline FILE* fopen_s(const char *fname, const char *mode)
{
	FILE *pfRet = NULL;

	if (NULL == fname || NULL == mode)
	{
		fprintf(stderr, "line:%d,wrong param [fname or mode = NULL]\n", __LINE__);
		return NULL;
	}
	pfRet = fopen(fname, mode);
	if (NULL == pfRet)
	{
		fprintf(stderr, "line:%d,fopen() failed", __LINE__);
		return NULL;
	}
	
	return pfRet;
}

ULONG hex2Dec(IN UCHAR aucHex[], OUT UCHAR *pucDec)
{
	ULONG i = 0;
	ULONG weight = 0;
	BOOL_T bflag = BOOL_TRUE;
	
	if (NULL == pucDec)
	{
		fprintf(stderr, "line:%d,wrong param [pucDec = NULL]\n", __LINE__);
		return FAILURE;
	}
	
	*pucDec = 0;
	for (i = 0; i < 2; ++i)
	{
		weight = bflag ? 16 : 1;
		if ('a' <= aucHex[i] && 'f' >= aucHex[i])
		{
			*pucDec += (UCHAR)((aucHex[i] - 'a' + 10) * weight);
		}
		else if ('0' <= aucHex[i] && '9' >= aucHex[i])
		{
			*pucDec += (UCHAR)((aucHex[i] - '0') * weight);
		}
		else
		{
			return FAILURE;
		}
		
		bflag = BOOL_FALSE;
	}
	
	return SUCCESS;
}

ULONG removeSpInFile(const char *pcFilePath)
{
	FILE *pfOriginal = NULL;
	FILE *pfTmp = NULL;
	int ich = 0;
	int iRet = 0;
	
	if (NULL == pcFilePath)
	{
		fprintf(stderr, "line:%d,wrong param [pcFilePath = NULL]\n", __LINE__);
		return FAILURE;
	}

	pfOriginal = fopen_s(pcFilePath, "r");
	
	//创建临时文件
	pfTmp = tmpfile();
	if (NULL == pfTmp)
	{
		fprintf(stderr, "line:%d,tmpfile() failed\n", __LINE__);
		fclose(pfOriginal);
		return FAILURE;
	}

	while (EOF != (ich = fgetc(pfOriginal)))
	{
		if (' ' == ich || '\n' == ich || '\r' == ich)
		{
			continue;
		}

		fputc(ich, pfTmp);
	}

	fclose(pfOriginal);
	iRet = remove(pcFilePath);
	if (SUCCESS != iRet)
	{
		fprintf(stderr, "line:%d,remove() failed\n", __LINE__);
		fclose(pfTmp);
		return FAILURE;
	}

	pfOriginal = fopen_s(pcFilePath, "w");
	rewind(pfTmp);

	while (EOF != (ich = fgetc(pfTmp)))
	{
		fputc(ich, pfOriginal);
	}
	
	fclose(pfOriginal);
	fclose(pfTmp);
	
	return SUCCESS;
}

ULONG txt2bin(const char *pcFilePath)
{
	FILE *pfOriginal = NULL;
	FILE *pfTmp = NULL;
	ULONG ulRet = SUCCESS;
	UCHAR aucHex[2] = {0};
	UCHAR ucDec = 0;
	int ich = 0;
	
	ulRet = removeSpInFile(pcFilePath);
	if (SUCCESS != ulRet)
	{
		fprintf(stderr, "line:%d,removeSpInFile() failed\n", __LINE__);
		return FAILURE;
	}

	pfOriginal = fopen_s(pcFilePath, "rb");

	//创建临时文件
	pfTmp = tmpfile();
	if (NULL == pfTmp)
	{
		fprintf(stderr, "line:%d,tmpfile() failed\n", __LINE__);
		fclose(pfOriginal);
		return FAILURE;
	}

	while (EOF != fscanf(pfOriginal, "%c%c", &aucHex[0], &aucHex[1]))
	{
		ulRet = hex2Dec(aucHex, &ucDec);
		if (SUCCESS != ulRet)
		{
			fprintf(stderr, "line:%d,hexToDec() failed\n", __LINE__);
			return FAILURE;
		}
		fputc(ucDec, pfTmp);
	}

	fclose(pfOriginal);
	ulRet = (ULONG)remove(pcFilePath);
	if (SUCCESS != ulRet)
	{
		fprintf(stderr, "line:%d,remove() failed\n", __LINE__);
		fclose(pfTmp);
		return FAILURE;
	}
	
	pfOriginal = fopen_s(pcFilePath, "wb");
	rewind(pfTmp);

	while (EOF != (ich = fgetc(pfTmp)))
	{
		fputc(ich, pfOriginal);
	}
	
	fclose(pfOriginal);
	fclose(pfTmp);
	
	return SUCCESS;
}

int main(int argc, char *argv[])
{
	ULONG ulRet = 0;

	if (2 != argc)
	{
		fprintf(stderr, "Usage: %s <fname>\n", argv[0]);
		return FAILURE;
	}
	
	ulRet = txt2bin(argv[1]);
	if (SUCCESS != ulRet)
	{
		fprintf(stderr, "line:%d,txt2bin() failed\n", __LINE__);
		return FAILURE;
	}

	return SUCCESS;
}