lib/progname.h

   1 /* Program name management.
   2    Copyright (C) 2001-2004, 2006 Free Software Foundation, Inc.
   3    Written by Bruno Haible <haible@clisp.cons.org>, 2001.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 2, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software Foundation,
  17    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  18
  19 #ifndef _PROGNAME_H
  20 #define _PROGNAME_H
  21
  22 /* Programs using this file should do the following in main():
  23      set_program_name (argv[0]);
  24  */
  25
  26
  27 #ifdef __cplusplus
  28 extern "C" {
  29 #endif
  30
  31
  32 /* String containing name the program is called with.  */
  33 extern const char *program_name;
  34
  35 /* Set program_name, based on argv[0].  */
  36 extern void set_program_name (const char *argv0);
  37
  38 #if ENABLE_RELOCATABLE
  39
  40 /* Set program_name, based on argv[0], and original installation prefix and
  41    directory, for relocatability.  */
  42 extern void set_program_name_and_installdir (const char *argv0,
  43                                              const char *orig_installprefix,
  44                                              const char *orig_installdir);
  45 #undef set_program_name
  46 #define set_program_name(ARG0) \
  47   set_program_name_and_installdir (ARG0, INSTALLPREFIX, INSTALLDIR)
  48
  49 /* Return the full pathname of the current executable, based on the earlier
  50    call to set_program_name_and_installdir.  Return NULL if unknown.  */
  51 extern char *get_full_program_name (void);
  52
  53 #endif
  54
  55
  56 #ifdef __cplusplus
  57 }
  58 #endif
  59
  60
  61 #endif /* _PROGNAME_H */