Date: Mon, 3 May 1999 21:25:37 +0200 (CEST) From: "Michael C. Vergallen" <mvergall@mail.double-barrel.be> To: freebsd-stable@FreeBSD.ORG Subject: Dos2unix Message-ID: <Pine.LNX.4.04.9905032123010.5274-100000@ws3.double-barrel.be>
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Here it is ... someone gave me this routine to use ...
------------- dud.c starts here ---------------------
/*
===============================================================================
DUD Dos to Unix to Dos Ascii conversion
22/12/95 TC20
Ported to Linux 07/01/99 By DDU
Surely there's some bad code in here
But it works for me
===============================================================================
*/
#include<stdio.h>
#include<fcntl.h>
#include<sys/stat.h>
#include<sys/types.h>
unsigned char getbyte();
void outbyte(unsigned char kar);
int hdl1,hdl2;
void main(int argc,char *argv[])
{
unsigned char kar,kar2,flag;
if(argc<4)
{
puts("dud -d infile outfile [Dos to Unix conversion]");
puts("dud -u infile outfile [Unix to Dos conversion]");
exit(0);
}
if( (hdl1=open(argv[2],O_RDONLY ))==-1)
{ puts("INFILE OPEN FAILED."); exit(0); }
if( (hdl2=open(argv[3],O_CREAT | O_RDWR,S_IWRITE ))==-1)
{ puts("OUTFILE OPEN FAILED."); exit(0); }
/* Dos to Unix conversion */
if(strcmp(argv[1],"-d")==0)
{
while(1)
{
kar=getbyte();
if(kar==0xff) { outbyte(0); close(hdl1); close(hdl2); exit(0);
}
if(kar==13)
{
if( (kar=getbyte() )==10)
{
outbyte(10);
}
else { outbyte(kar); }
}
else outbyte(kar);
}
}
/* Unix to Dos conversion */
else if(strcmp(argv[1],"-u")==0)
{
while(1)
{
kar=getbyte();
if(kar==0xff) { outbyte(0); close(hdl1); close(hdl2); exit(0);
}
if(kar==10)
{
outbyte(13);
outbyte(10);
}
else outbyte(kar);
}
}
else { puts("invalid option."); exit(0); }
}
/*------------------------------------------------------------------------*/
unsigned char getbyte() /* Get next byte from our buffer */
{
static unsigned char first;
static int off,rval;
static unsigned char buf[4096],out;
static unsigned char *kar=buf;
if( (first==0) || (off==4096) ) /* If end of buffer */
{
rval=read(hdl1,buf,4096); /* Read in next block */
first=1;
off=0;
}
out=*(kar+off);
if( (rval<4096) && (rval==off) ) { return(0xff); }
off++;
return (out);
}
/*-----------------------------------------------------------------------*/
void outbyte(unsigned char kar)
{
static unsigned char buf[4096];
static unsigned char *ptr=buf;
static int off,rval;
if(kar==0) { write(hdl2,ptr,off); return; }
if(off==4096)
{
rval=write(hdl2,ptr,4096);
off=0;
}
*(ptr+off)=kar;
off++;
}
----end-----
Michael
---
Michael C. Vergallen A.k.A. Mad Mike,
Sportstraat 28 http://www.double-barrel.be/mvergall/
B 9000 Gent ftp://ftp.double-barrel.be/pub/linux/
Belgium tel : 32-9-2227764 Fax : 32-9-2224976
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