auto import from //depot/cupcake/@135843android-1.6_r2android-1.6_r1.5android-1.6_r1.4android-1.6_r1.3android-1.6_r1.2android-1.6_r1.1android-1.6_r1donut-release2donut-release

1 files changed, 71 insertions, 0 deletions

diff --git a/libelf/gelf_rawchunk.c b/libelf/gelf_rawchunk.c
new file mode 100644
index 00000000..667f3013
--- /dev/null
+++ b/libelf/gelf_rawchunk.c
@@ -0,0 +1,71 @@
+/* Retrieve uninterpreted chunk of the file contents.
+   Copyright (C) 2002 Red Hat, Inc.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   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 <libelf.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "libelfP.h"
+
+
+char *
+gelf_rawchunk (elf, offset, size)
+     Elf *elf;
+     GElf_Off offset;
+     GElf_Word size;
+{
+  if (elf == NULL)
+    {
+      /* No valid descriptor.  */
+      __libelf_seterrno (ELF_E_INVALID_HANDLE);
+      return NULL;
+    }
+
+  if (offset >= elf->maximum_size
+      || offset + size >= elf->maximum_size
+      || offset + size < offset)
+    {
+      /* Invalid request.  */
+      __libelf_seterrno (ELF_E_INVALID_OP);
+      return NULL;
+    }
+
+  /* If the file is mmap'ed return an appropriate pointer.  */
+  if (elf->map_address != NULL)
+    return (char *) elf->map_address + elf->start_offset + offset;
+
+  /* We allocate the memory and read the data from the file.  */
+  char *result = (char *) malloc (size);
+  if (result == NULL)
+    __libelf_seterrno (ELF_E_NOMEM);
+  else
+    /* Read the file content.  */
+    if ((size_t) pread (elf->fildes, result, size, elf->start_offset + offset)
+	!= size)
+      {
+	/* Something went wrong.  */
+	__libelf_seterrno (ELF_E_READ_ERROR);
+	free (result);
+      }
+
+  return result;
+}