1/* Program name management. 2 Copyright (C) 2001-2003, 2005-2006 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 20#include <config.h> 21 22/* Specification. */ 23#undef ENABLE_RELOCATABLE /* avoid defining set_program_name as a macro */ 24#include "progname.h" 25 26#include <string.h> 27 28 29/* String containing name the program is called with. 30 To be initialized by main(). */ 31const char *program_name = NULL; 32 33/* Set program_name, based on argv[0]. */ 34void 35set_program_name (const char *argv0) 36{ 37 /* libtool creates a temporary executable whose name is sometimes prefixed 38 with "lt-" (depends on the platform). It also makes argv[0] absolute. 39 Remove this "<dirname>/.libs/" or "<dirname>/.libs/lt-" prefix here. */ 40 const char *slash; 41 const char *base; 42 43 slash = strrchr (argv0, '/'); 44 base = (slash != NULL ? slash + 1 : argv0); 45 if (base - argv0 >= 7 && memcmp (base - 7, "/.libs/", 7) == 0) 46 argv0 = base; 47 if (strncmp (base, "lt-", 3) == 0) 48 argv0 = base + 3; 49 program_name = argv0; 50} 51