pico/osdep/newmail.c

   1 #if !defined(lint) && !defined(DOS)
   2 static char rcsid[] = "$Id: newmail.c 769 2007-10-24 00:15:40Z hubert@u.washington.edu $";
   3 #endif
   4
   5 /*
   6  * ========================================================================
   7  * Copyright 2006-2007 University of Washington
   8  * Copyright 2013-2015 Eduardo Chappa
   9  *
  10  * Licensed under the Apache License, Version 2.0 (the "License");
  11  * you may not use this file except in compliance with the License.
  12  * You may obtain a copy of the License at
  13  *
  14  *     http://www.apache.org/licenses/LICENSE-2.0
  15  *
  16  * ========================================================================
  17  */
  18
  19 #include <system.h>
  20 #include <general.h>
  21
  22 #include "../estruct.h"
  23 #include "../mode.h"
  24 #include "../pico.h"
  25 #include "../edef.h"
  26 #include "../efunc.h"
  27 #include "../keydefs.h"
  28
  29 #include "../../pith/charconv/filesys.h"
  30
  31 #include "newmail.h"
  32
  33
  34
  35
  36 /*
  37  * pico_new_mail - just checks mtime and atime of mail file and notifies user
  38  *                 if it's possible that they have new mail.
  39  */
  40 int
  41 pico_new_mail(void)
  42 {
  43 #ifndef _WINDOWS
  44     int ret = 0;
  45     static time_t lastchk = 0;
  46     struct stat sbuf;
  47     char   inbox[256], *p;
  48
  49     if((p = (char *)getenv("MAIL")) != NULL)
  50       /* fix unsafe sprintf - noticed by petter wahlman <petter@bluezone.no> */
  51       snprintf(inbox, sizeof(inbox), "%s", p);
  52     else
  53       snprintf(inbox, sizeof(inbox), "%s/%s", MAILDIR, (char *) getlogin());
  54
  55     if(our_stat(inbox, &sbuf) == 0){
  56         ret = sbuf.st_atime <= sbuf.st_mtime &&
  57           (lastchk < sbuf.st_mtime && lastchk < sbuf.st_atime);
  58         lastchk = sbuf.st_mtime;
  59         return(ret);
  60     }
  61     else
  62       return(ret);
  63 #else /* _WINDOWS */
  64     return(0);
  65 #endif
  66 }