snd.c

接收Fax的程序

/*
** (c) 1992 Uwe C. Schroeder, Anwendungssysteme , Augsburg, Germany
**
** 
** Permission to use, copy, and modify this software and its
** documentation for non comercial  purpose is hereby granted 
** without fee, provided that
** the above copyright notice appear in all copies and that both that
** copyright notice and this permission notice appear in supporting
** documentation, and that the name of Uwe C. Schroeder not be used in
** advertising or publicity pertaining to distribution of the software without
** specific, written prior permission.  Uwe Schroeder makes no representations
** about the suitability of this software for any purpose.  It is provided
** "as is" without express or implied warranty.
** This software may not be sold or distributed with commercial products
** ( this includes distribution "for users convenience" ) without prior
** written permission by the author.
**
** UWE SCHROEDER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
** INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
** EVENT SHALL UWE SCHROEDER BE LIABLE FOR ANY SPECIAL, INDIRECT OR
** CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
** DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
** TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
** PERFORMANCE OF THIS SOFTWARE.
**
**
** This is a alpha release, which means, that there are still several
** known bugs.
**
** Please report bugs to:
**
**                     [e-mail]
**
*/


#include <stdio.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include "vfax.h"

extern int fd;

send_file(f)
     FILE *f;
{
  unsigned char fch[512];
  int sbytes=0, wbytes=0, ret = -1;

  while(!feof(f))
    {
      if((sbytes=fread(&fch,sizeof(unsigned char),512,f)) > 0)
	{
	  if(write(fd,&fch,sbytes)< 0)
	    {
	      logto(0,"FATAL: write failed!");
	      fclose(f);
	      return(-1);
	    }
	  else
	    {
	      wbytes +=sbytes;
	    }
	}
      else
	{
	  logto(0,"fread failed !");
	}
    }
  fclose(f);
  logto(1,"END: wrote %d bytes\n",wbytes);
  drop_rts();
  if((ret=get_fax_disconnect())==0)
    logto(1,"Transmission OK");
  else
    logto(0,"Transmission FAILED !");
  rise_rts();
  return ret;
}