mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 07:20:11 +00:00
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/* Stub for ldd script to print Linux libc4 dependencies.
|
|
Copyright (C) 1998 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
/* This code is based on the `ldd' program code from the Linux ld.so
|
|
package. */
|
|
|
|
#include <a.out.h>
|
|
#include <errno.h>
|
|
#include <error.h>
|
|
#include <libintl.h>
|
|
#include <locale.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
/* Get libc version number. */
|
|
#include "../version.h"
|
|
|
|
#define PACKAGE _libc_intl_domainname
|
|
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
const char *filename;
|
|
size_t filename_len;
|
|
struct exec exec;
|
|
char *buf;
|
|
FILE *fp;
|
|
|
|
/* Set locale via LC_ALL. */
|
|
setlocale (LC_ALL, "");
|
|
|
|
/* Set the text message domain. */
|
|
textdomain (PACKAGE);
|
|
|
|
/* We expect exactly one argument. */
|
|
if (argc != 2)
|
|
return 1;
|
|
|
|
filename = argv[1];
|
|
|
|
/* First see whether this is really an a.out binary. */
|
|
fp = fopen (filename, "rb");
|
|
if (fp == NULL)
|
|
error (2, errno, gettext ("cannot open `%s'"), filename);
|
|
|
|
/* Read the program header. */
|
|
if (fread (&exec, sizeof exec, 1, fp) < 1)
|
|
error (2, errno, gettext ("cannot read header from `%s'"), filename);
|
|
|
|
/* Test for the magic numbers. */
|
|
if (N_MAGIC (exec) != ZMAGIC && N_MAGIC (exec) != QMAGIC
|
|
&& N_MAGIC (exec) != OMAGIC)
|
|
exit (3);
|
|
|
|
/* We don't need the file open anymore. */
|
|
fclose (fp);
|
|
|
|
/* We must put `__LDD_ARGV0=<program-name>' in the environment. */
|
|
filename_len = strlen (filename);
|
|
buf = (char *) alloca (sizeof "__LDD_ARGV0=" + filename_len);
|
|
mempcpy (mempcpy (buf, "__LDD_ARGV0=", sizeof "__LDD_ARGV0=" - 1),
|
|
filename, filename_len + 1);
|
|
/* ...and put the value in the environment. */
|
|
putenv (buf);
|
|
|
|
/* Now we can execute the binary. */
|
|
return execl (filename, NULL) ? 4 : 0;
|
|
}
|