libgloss/write.c

   1 /* write.c -- write bytes to an output device.
   2  *
   3  * Copyright (c) 1995 Cygnus Support
   4  *
   5  * The authors hereby grant permission to use, copy, modify, distribute,
   6  * and license this software and its documentation for any purpose, provided
   7  * that existing copyright notices are retained in all copies and that this
   8  * notice is included verbatim in any distributions. No written agreement,
   9  * license, or royalty fee is required for any of the authorized uses.
  10  * Modifications to this software may be copyrighted by their authors
  11  * and need not follow the licensing terms described here, provided that
  12  * the new terms are clearly indicated on the first page of each file where
  13  * they apply.
  14  */
  15 #include "glue.h"
  16
  17 extern int  outbyte (char x);
  18
  19 /*
  20  * write -- write bytes to the serial port. Ignore fd, since
  21  *          stdout and stderr are the same. Since we have no filesystem,
  22  *          open will only return an error.
  23  */
  24 _READ_WRITE_RETURN_TYPE
  25 write (int fd,
  26        const void *buf_,
  27        size_t nbytes)
  28 {
  29   int i;
  30   const char *buf = buf_;
  31
  32   for (i = 0; i < nbytes; i++) {
  33     if (*(buf + i) == '\n') {
  34       outbyte ('\r');
  35     }
  36     outbyte (*(buf + i));
  37   }
  38   return (nbytes);
  39 }