src/consaver/cons.saver.h

   1
   2 /** \file cons.saver.h
   3  *  \brief Header: general purpose Linux console screen save/restore server
   4  *
   5  *  This code does _not_ need to be setuid root. However, it needs
   6  *  read/write access to /dev/vcsa* (which is priviledged
   7  *  operation). You should create user vcsa, make cons.saver setuid
   8  *  user vcsa, and make all vcsa's owned by user vcsa.
   9  *  Seeing other peoples consoles is bad thing, but believe me, full
  10  *  root is even worse.
  11  */
  12
  13 #ifndef MC_CONS_SAVER_H
  14 #define MC_CONS_SAVER_H
  15
  16 enum {
  17     CONSOLE_INIT = '1',
  18     CONSOLE_DONE,
  19     CONSOLE_SAVE,
  20     CONSOLE_RESTORE,
  21     CONSOLE_CONTENTS
  22 };
  23
  24 #ifndef LINUX_CONS_SAVER_C
  25 /* Used only in mc, not in cons.saver */
  26
  27 extern signed char console_flag;
  28
  29 void show_console_contents (int starty, unsigned char begin_line, unsigned char end_line);
  30 void handle_console (unsigned char action);
  31
  32 extern int cons_saver_pid;
  33 #endif /* !LINUX_CONS_SAVER_C */
  34
  35 #endif