548643e528
* gnulib/progname.h: Likewise.
* conf/i386-pc.rmk (grub_mkimage_SOURCES): Add `gnulib/progname.c'.
* util/i386/pc/grub-mkimage.c: Include `"progname.h"'.
(usage): Replace `progname' with `program_name'.
(main): Use set_program_name() for program name initialization.
78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/* Program name management.
|
|
Copyright (C) 2001-2003, 2005-2009 Free Software Foundation, Inc.
|
|
Written by Bruno Haible <haible@clisp.cons.org>, 2001.
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
|
|
#include <config.h>
|
|
|
|
/* Specification. */
|
|
#undef ENABLE_RELOCATABLE /* avoid defining set_program_name as a macro */
|
|
#include "progname.h"
|
|
|
|
#include <errno.h> /* get program_invocation_name declaration */
|
|
#include <string.h>
|
|
|
|
|
|
/* String containing name the program is called with.
|
|
To be initialized by main(). */
|
|
const char *program_name = NULL;
|
|
|
|
/* Set program_name, based on argv[0]. */
|
|
void
|
|
set_program_name (const char *argv0)
|
|
{
|
|
/* libtool creates a temporary executable whose name is sometimes prefixed
|
|
with "lt-" (depends on the platform). It also makes argv[0] absolute.
|
|
But the name of the temporary executable is a detail that should not be
|
|
visible to the end user and to the test suite.
|
|
Remove this "<dirname>/.libs/" or "<dirname>/.libs/lt-" prefix here. */
|
|
const char *slash;
|
|
const char *base;
|
|
|
|
slash = strrchr (argv0, '/');
|
|
base = (slash != NULL ? slash + 1 : argv0);
|
|
if (base - argv0 >= 7 && strncmp (base - 7, "/.libs/", 7) == 0)
|
|
{
|
|
argv0 = base;
|
|
if (strncmp (base, "lt-", 3) == 0)
|
|
{
|
|
argv0 = base + 3;
|
|
/* On glibc systems, remove the "lt-" prefix from the variable
|
|
program_invocation_short_name. */
|
|
#if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME
|
|
program_invocation_short_name = (char *) argv0;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/* But don't strip off a leading <dirname>/ in general, because when the user
|
|
runs
|
|
/some/hidden/place/bin/cp foo foo
|
|
he should get the error message
|
|
/some/hidden/place/bin/cp: `foo' and `foo' are the same file
|
|
not
|
|
cp: `foo' and `foo' are the same file
|
|
*/
|
|
|
|
program_name = argv0;
|
|
|
|
/* On glibc systems, the error() function comes from libc and uses the
|
|
variable program_invocation_name, not program_name. So set this variable
|
|
as well. */
|
|
#if HAVE_DECL_PROGRAM_INVOCATION_NAME
|
|
program_invocation_name = (char *) argv0;
|
|
#endif
|
|
}
|