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-rw-r--r--libelf/elf_getident.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/libelf/elf_getident.c b/libelf/elf_getident.c
new file mode 100644
index 00000000..b673b5c6
--- /dev/null
+++ b/libelf/elf_getident.c
@@ -0,0 +1,51 @@
+/* Retrieve file identification data.
+ Copyright (C) 1998, 1999, 2000, 2002, 2004 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 <stddef.h>
+
+#include "libelfP.h"
+
+
+char *
+elf_getident (elf, ptr)
+ Elf *elf;
+ size_t *ptr;
+{
+ /* In case this is no ELF file, the handle is invalid and we return
+ NULL. */
+ if (elf == NULL || elf->kind != ELF_K_ELF)
+ {
+ if (ptr != NULL)
+ *ptr = 0;
+ return NULL;
+ }
+
+ /* We already read the ELF header. Return a pointer to it and store
+ the length in *PTR. */
+ if (ptr != NULL)
+ *ptr = EI_NIDENT;
+
+ return (char *) (elf->class == ELFCLASS32
+ || (offsetof (struct Elf, state.elf32.ehdr)
+ == offsetof (struct Elf, state.elf64.ehdr))
+ ? elf->state.elf32.ehdr->e_ident
+ : elf->state.elf64.ehdr->e_ident);
+}