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

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