1 files changed, 77 insertions, 0 deletions
diff --git a/libelf/elf_getscn.c b/libelf/elf_getscn.c
new file mode 100644
index 00000000..a6b4767c
--- /dev/null
+++ b/libelf/elf_getscn.c
@@ -0,0 +1,77 @@
+/* Get section at specific index.
+   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004 Red Hat, Inc.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 1998.
+
+   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, version 2.
+
+   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, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <assert.h>
+#include <stddef.h>
+#include <stdlib.h>
+
+#include "libelfP.h"
+
+
+Elf_Scn *
+elf_getscn (elf, idx)
+     Elf *elf;
+     size_t idx;
+{
+  if (elf == NULL)
+    return NULL;
+
+  if (unlikely (elf->kind != ELF_K_ELF))
+    {
+      __libelf_seterrno (ELF_E_INVALID_HANDLE);
+      return NULL;
+    }
+
+  rwlock_rdlock (elf->lock);
+
+  Elf_Scn *result = NULL;
+
+  /* Find the section in the list.  */
+  Elf_ScnList *runp = (elf->class == ELFCLASS32
+		       || (offsetof (struct Elf, state.elf32.scns)
+			   == offsetof (struct Elf, state.elf64.scns))
+		       ? &elf->state.elf32.scns : &elf->state.elf64.scns);
+  while (1)
+    {
+      if (idx < runp->max)
+	{
+	  if (idx < runp->cnt)
+	    result = &runp->data[idx];
+	  else
+	    __libelf_seterrno (ELF_E_INVALID_INDEX);
+	  break;
+	}
+
+      idx -= runp->max;
+
+      runp = runp->next;
+      if (runp == NULL)
+	{
+	  __libelf_seterrno (ELF_E_INVALID_INDEX);
+	  break;
+	}
+    }
+
+  rwlock_unlock (elf->lock);
+
+  return result;
+}
+INTDEF(elf_getscn)