1 files changed, 80 insertions, 0 deletions
diff --git a/libelf/elf32_newehdr.c b/libelf/elf32_newehdr.c
new file mode 100644
index 00000000..658ad462
--- /dev/null
+++ b/libelf/elf32_newehdr.c
@@ -0,0 +1,80 @@
+/* Create new ELF header.
+   Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc.
+   Written 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 <stdlib.h>
+#include <string.h>
+
+#include "libelfP.h"
+
+#ifndef LIBELFBITS
+# define LIBELFBITS 32
+#endif
+
+
+ElfW2(LIBELFBITS,Ehdr) *
+elfw2(LIBELFBITS,newehdr) (elf)
+     Elf *elf;
+{
+  ElfW2(LIBELFBITS,Ehdr) *result;
+
+  if (elf == NULL)
+    return NULL;
+
+  if (unlikely (elf->kind != ELF_K_ELF))
+    {
+      __libelf_seterrno (ELF_E_INVALID_HANDLE);
+      return NULL;
+    }
+
+  rwlock_wrlock (elf->lock);
+
+  if (elf->class == 0)
+    elf->class = ELFW(ELFCLASS,LIBELFBITS);
+  else if (unlikely (elf->class != ELFW(ELFCLASS,LIBELFBITS)))
+    {
+      __libelf_seterrno (ELF_E_INVALID_CLASS);
+      result = NULL;
+      goto out;
+    }
+
+  /* Don't create an ELF header if one already exists.  */
+  if (elf->state.ELFW(elf,LIBELFBITS).ehdr == NULL)
+    {
+      /* We use the memory in the ELF descriptor.  */
+      elf->state.ELFW(elf,LIBELFBITS).ehdr =
+	&elf->state.ELFW(elf,LIBELFBITS).ehdr_mem;
+
+      /* We clear this memory.  */
+      memset (elf->state.ELFW(elf,LIBELFBITS).ehdr, '\0',
+	      sizeof (ElfW2(LIBELFBITS,Ehdr)));
+
+      /* Mark the ELF header has modified.  */
+      elf->state.ELFW(elf,LIBELFBITS).ehdr_flags |= ELF_F_DIRTY;
+    }
+
+  result = elf->state.ELFW(elf,LIBELFBITS).ehdr;
+
+ out:
+  rwlock_unlock (elf->lock);
+
+  return result;
+}
+INTDEF(elfw2(LIBELFBITS,newehdr))