source: trunk/athena/bin/gms/view_message_by_zephyr.c @ 9039

/* This file is part of the Project Athena Global Message System.
 * Created by: Mark W. Eichin <eichin@athena.mit.edu>
 * $Source: /afs/dev.mit.edu/source/repository/athena/bin/gms/view_message_by_zephyr.c,v $
 * $Author: ghudson $
 *
 *      Copyright (c) 1988 by the Massachusetts Institute of Technology.
 *      For copying and distribution information, see the file
 *      "mit-copyright.h". 
 */
#include <mit-copyright.h>
#ifndef lint
static char rcsid_view_message_by_zephyr_c[] = "$Header: /afs/dev.mit.edu/source/repository/athena/bin/gms/view_message_by_zephyr.c,v 1.6 1996-10-04 04:01:08 ghudson Exp $";
#endif lint

#include "globalmessage.h"
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <syslog.h>

void view_message_by_zephyr(message)
     char *message;
{
  char *whoami, *getlogin();
  char *ptr;
  
  whoami = getenv("USER");
  
  if(!whoami)
    whoami = getlogin();
  
  if(!whoami) {
    struct passwd *pw;
    pw = getpwuid(getuid());
    if(pw) {
      whoami = pw->pw_name;
    } else {
      fprintf(stderr,
              "get_message: couldn't find username to send zephyr notice\n");
      exit(2);
    }
  }
  /* skip magic headers */
  ptr = strchr(message, '\n')+1;
  
  /* check that there is *something* after the headers */
  if(*ptr) {
    /* don't even fork... this just exits anyway... */
    execl("/usr/athena/bin/zwrite",
          "zwrite", "-d", "-q", "-n",  whoami, "-m", ptr, 0);
    /* put logging here in case the exec fails. */
    syslog(LOG_INFO, "GMS client execl of zwrite failed [%s]",
           error_message(errno));
  }
}