文件拷贝

#include <stdio.h>
#define MAXPATH 100

int CopyFile(const char* srcName,const char* dstName);

int main()
{
	char srcFilename[MAXPATH];
	char dstFilename[MAXPATH];

	printf("The source filename:");
	scanf("%s",srcFilename);
	printf("The destination filename:");
	scanf("%s",dstFilename);

	if (CopyFile(srcFilename,dstFilename))
	{
		printf("Copy succeed.\n");
	} 
	else
	{
		perror("Copy failed.");
	}
}

int CopyFile(const char* srcName,const char* dstName)
{
	FILE *fpSrc=NULL;
	FILE *fpDst=NULL;
	int ch,rval=1;

	fpSrc=fopen(srcName,"rb");
	if (fpSrc==NULL)
	{
		goto ERROR;
	}

	fpDst=fopen(dstName,"wb");
	if (fpDst==NULL)
	{
		goto ERROR;
	}

	while ((ch=fgetc(fpSrc))!=EOF)
	{
		if(fputc(ch,fpDst)==EOF)
			goto ERROR;
	}
	fflush(fpDst);
	goto EXIT;

ERROR:
	rval=0;
EXIT:
	if (fpSrc!=NULL)
	{
		fclose(fpSrc);
	}
	if (fpDst!=NULL)
	{
		fclose(fpDst);
	}
	return rval;
}