BSD 4_4_Lite2 development

[unix-history] / usr / src / contrib / mh-6.8.3a / sbr / cpydata.c

/* cpydata.c - copy from one fd to another */

#include "../h/mh.h"
#include <stdio.h>


void cpydata (in, out, ifile, ofile)
register int    in,
               out;
register char  *ifile,
              *ofile;
{
   register int    i;
   char    buffer[BUFSIZ];

   while ((i = read (in, buffer, sizeof buffer)) > 0)
       if (write (out, buffer, i) != i)
           adios (ofile, "error writing");

   if (i == NOTOK)
       adios (ifile, "error reading");
}