1 /* Stub for ldd script to print Linux libc4 dependencies.
2 Copyright (C) 1998, 2005, 2009 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 /* This code is based on the `ldd' program code from the Linux ld.so
34 /* Get libc version number. */
35 #include "../version.h"
37 #define PACKAGE _libc_intl_domainname
41 main (int argc
, char *argv
[])
49 /* Set locale via LC_ALL. */
50 setlocale (LC_ALL
, "");
52 /* Set the text message domain. */
55 /* We expect exactly one argument. */
59 if (strcmp (argv
[1], "--help") == 0)
61 printf (gettext ("Usage: lddlibc4 FILE\n\n"));
62 fputs (gettext ("For bug reporting instructions, please see:\n\
63 <http://www.gnu.org/software/libc/bugs.html>.\n"), stdout
);
66 else if (strcmp (argv
[1], "--version") == 0)
68 printf ("lddlibc4 (GNU %s) %s\n", PACKAGE
, VERSION
);
70 Copyright (C) %s Free Software Foundation, Inc.\n\
71 This is free software; see the source for copying conditions. There is NO\n\
72 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
79 /* First see whether this is really an a.out binary. */
80 fp
= fopen (filename
, "rb");
82 error (2, errno
, gettext ("cannot open `%s'"), filename
);
84 /* Read the program header. */
85 if (fread (&exec
, sizeof exec
, 1, fp
) < 1)
86 error (2, errno
, gettext ("cannot read header from `%s'"), filename
);
88 /* Test for the magic numbers. */
89 if (N_MAGIC (exec
) != ZMAGIC
&& N_MAGIC (exec
) != QMAGIC
90 && N_MAGIC (exec
) != OMAGIC
)
93 /* We don't need the file open anymore. */
96 /* We must put `__LDD_ARGV0=<program-name>' in the environment. */
97 filename_len
= strlen (filename
);
98 buf
= (char *) alloca (sizeof "__LDD_ARGV0=" + filename_len
);
99 mempcpy (mempcpy (buf
, "__LDD_ARGV0=", sizeof "__LDD_ARGV0=" - 1),
100 filename
, filename_len
+ 1);
101 /* ...and put the value in the environment. */
104 /* Now we can execute the binary. */
105 return execv (filename
, &argv
[argc
]) ? 4 : 0;