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-rw-r--r--ChangeLog4
-rw-r--r--sysdeps/unix/sysv/linux/lddlibc4.c87
2 files changed, 91 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index de1327b57d..69d80cb953 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+1998-03-26 18:50 Ulrich Drepper <drepper@cygnus.com>
+
+ * sysdeps/unix/sysv/linux/lddlibc4.c: New file.
+
1998-03-26 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* manual/install.texi (Supported Configurations): Add
diff --git a/sysdeps/unix/sysv/linux/lddlibc4.c b/sysdeps/unix/sysv/linux/lddlibc4.c
new file mode 100644
index 0000000000..9de3dc8738
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/lddlibc4.c
@@ -0,0 +1,87 @@
+/* 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. 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 <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);
+ /* ...and put the value in the environment. */
+ putenv (buf);
+
+ /* Now we can execute the binary. */
+ return execl (filename, NULL) ? 4 : 0;
+}