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

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