diplodocus.org Git - nmh/blob - sbr/cpydata.c

   1
   2 /*
   3  * cpydata.c -- copy all data from one fd to another
   4  *
   5  * $Id$
   6  *
   7  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   8  * COPYRIGHT file in the root directory of the nmh distribution for
   9  * complete copyright information.
  10  */
  11
  12 #include <h/mh.h>
  13
  14 void
  15 cpydata (int in, int out, char *ifile, char *ofile)
  16 {
  17     int i;
  18     char buffer[BUFSIZ];
  19
  20     while ((i = read(in, buffer, sizeof(buffer))) > 0) {
  21         if (write(out, buffer, i) != i)
  22             adios(ofile, "error writing");
  23     }
  24
  25     if (i == -1)
  26         adios(ifile, "error reading");
  27 }