Squashed 'third_party/elfutils/' content from commit 555e15e

Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/tests/arls.c b/tests/arls.c
new file mode 100644
index 0000000..ca0d3e6
--- /dev/null
+++ b/tests/arls.c
@@ -0,0 +1,111 @@
+/* Copyright (C) 2007 Red Hat, Inc.
+   This file is part of elfutils.
+
+   This file 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.
+
+   elfutils 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/>.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <ar.h>
+#include <fcntl.h>
+#include <libelf.h>
+#include <stdio.h>
+#include <unistd.h>
+
+
+static int handle (const char *fname);
+
+
+int
+main (int argc, char *argv[])
+{
+  elf_version (EV_CURRENT);
+
+  int result = 0;
+  if (argc == 1)
+    result = handle ("a.out");
+  else
+    for (int i = 1; i < argc; ++i)
+      result |= handle (argv[1]);
+
+  return result;
+}
+
+
+static int
+handle (const char *fname)
+{
+  int fd = open (fname, O_RDONLY);
+  if (fd == -1)
+    {
+      printf ("cannot open '%s': %m\n", fname);
+      return 1;
+    }
+
+  Elf *elf = elf_begin (fd, ELF_C_READ_MMAP, NULL);
+  if (elf == NULL)
+    {
+      printf ("cannot get ELF handling for '%s': %s\n",
+	      fname, elf_errmsg (-1));
+      close (fd);
+      return 1;
+    }
+
+  if (elf_kind (elf) != ELF_K_AR)
+    {
+      printf ("'%s' is no archive\n", fname);
+      elf_end (elf);
+      close (fd);
+      return 1;
+    }
+
+  printf ("%s:\n", fname);
+  Elf *subelf = NULL;
+  Elf_Cmd cmd = ELF_C_READ_MMAP;
+  while ((subelf = elf_begin (fd, cmd, elf)) != NULL)
+    {
+      Elf_Arhdr *arhdr = elf_getarhdr (subelf);
+      if (arhdr == NULL)
+	{
+	  printf ("cannot get archive header in '%s': %s\n",
+		  fname, elf_errmsg (-1));
+	  elf_end (subelf);
+	  elf_end (elf);
+	  close (fd);
+	  return 1;
+	}
+
+      off_t off = elf_getaroff (subelf);
+
+      printf ("\nOffset    %llu\n"
+	      "  Name    %s\n"
+	      "  Date    %ld\n"
+	      "  UID     %d\n"
+	      "  GID     %d\n"
+	      "  Mode    %o\n"
+	      "  Size    %lld\n",
+	      (unsigned long long int) off,
+	      arhdr->ar_name, (long int) arhdr->ar_date, (int) arhdr->ar_uid,
+	      (int) arhdr->ar_gid,
+	      (int) arhdr->ar_mode, (long long int) arhdr->ar_size);
+
+      cmd = elf_next (subelf);
+      elf_end (subelf);
+    }
+
+  close (fd);
+
+  return 0;
+}