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/* BC 3.1 source code for something similar to simple diff */
#include <string.h>
#include <dos.h>
#include <dir.h>
#include <stdio.h>
#include <io.h>
#include <fcntl.h>
#include <sys/stat.h>
#define COMPAREBUFLEN (1024*16)
char comparebuf1[COMPAREBUFLEN];
char comparebuf2[COMPAREBUFLEN];
int TestAllFiles(char *path1,char *path2)
{
int old_path_len1,old_path_len2;
int done,file1,file2,i;
struct ffblk s;
int len1,len2;
long int pos;
old_path_len1=strlen(path1);
old_path_len2=strlen(path2);
strcat(path1,"*.*");
done=findfirst(path1,&s,0x2f);
path1[old_path_len1]=0;
while(!done)
{
path1[old_path_len1]=0;
path2[old_path_len2]=0;
strcat(path1,s.ff_name);
strcat(path2,s.ff_name);
printf("File in progress %s",path1);
if ((file1=open(path1, O_RDONLY | O_BINARY , S_IREAD))==-1)
{printf("\nCannot open file: %s \n",path1);goto error;}
else if ((file2=open(path2, O_RDONLY | O_BINARY , S_IREAD))==-1)
{printf("\nCannot open file: %s \n",path2);close(file1);goto error;}
else
{
len2=len1=COMPAREBUFLEN;pos=0;
while((len1==COMPAREBUFLEN)&&(len2==COMPAREBUFLEN))
{
if((len1=read(file1,comparebuf1,COMPAREBUFLEN))==-1)
{
printf("\ndisk IO error!: cannot read file %s\n",path1);
goto error_close;
}
if((len2=read(file2,comparebuf2,COMPAREBUFLEN))==-1)
{
printf("\ndisk IO error!: cannot read file %s\n",path2);
goto error_close;
};
if(len1) if(memcmp(comparebuf1,comparebuf2,len1))
{
for(i=0;(i<len1)&&(*(comparebuf1+i)==*(comparebuf2+i));i++);
printf("\nCompare Error %s on pos %X!\n",path1,pos+i);
goto error_close;
}
pos+=len1;
}
if(len1!=len2)
{
printf("\nDifferent lengths of files %s and %s",path1,path2);
error_close:
close(file2);
close(file1);
error:
if(getchar()=='q') return(1);
break;
}else{
printf(" ... compared %ld bytes\n",pos);
close(file2);
close(file1);
};
}
done=findnext(&s);
}
path1[old_path_len1]=0;
path2[old_path_len2]=0;
strcat(path1,"*.*");
done=findfirst(path1,&s,FA_DIREC | 0x7);
path1[old_path_len1]=0;
while(!done)
{
if(*s.ff_name != '.')
{
if((s.ff_attrib & FA_DIREC)!=0)
{
strcat(path1,s.ff_name);
strcat(path1,"\\");
path1[old_path_len1+strlen(s.ff_name)+1]=0;
strcat(path2,s.ff_name);
strcat(path2,"\\");
path1[old_path_len2+strlen(s.ff_name)+1]=0;
TestAllFiles(path1,path2);
path1[old_path_len1]=0;
path2[old_path_len2]=0;
}
}
done=findnext(&s);
}
path1[old_path_len1]=0;
path2[old_path_len2]=0;
return 0;
}
int main(int argc,char *argv[])
{
if(argc<3)
{
printf("usage: cmpdisk <d>: <d>:\n");
return(0);
};
{
char path1[255],path2[255];
strcpy(path1,argv[1]);
strcpy(path2,argv[2]);
TestAllFiles(path1,path2);
};
return(0);
};
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