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authorUlrich Drepper <drepper@redhat.com>2005-07-26 05:00:05 +0000
committerUlrich Drepper <drepper@redhat.com>2005-07-26 05:00:05 +0000
commitb08d5a8fb42f4586d756068065186b5af7e48dad (patch)
tree9f05f86be7877ed461b4dc05f53b29ea4fc0d2a1 /libelf/elf_next.c
downloadelfutils-b08d5a8fb42f4586d756068065186b5af7e48dad.tar.gz
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Diffstat (limited to 'libelf/elf_next.c')
-rw-r--r--libelf/elf_next.c53
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diff --git a/libelf/elf_next.c b/libelf/elf_next.c
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+/* Advance in archive to next element.
+ Copyright (C) 1998, 1999, 2000, 2002 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 <libelf.h>
+#include <stddef.h>
+
+#include "libelfP.h"
+
+
+Elf_Cmd
+elf_next (elf)
+ Elf *elf;
+{
+ Elf *parent;
+
+ /* Be gratious, the specs demand it. */
+ if (elf == NULL || elf->parent == NULL)
+ return ELF_C_NULL;
+
+ /* We can be sure the parent is an archive. */
+ parent = elf->parent;
+ assert (parent->kind == ELF_K_AR);
+
+ /* Now advance the offset. */
+ parent->state.ar.offset += (sizeof (struct ar_hdr)
+ + ((parent->state.ar.elf_ar_hdr.ar_size + 1)
+ & ~1l));
+
+ /* Get the next archive header. */
+ if (__libelf_next_arhdr (parent) != 0)
+ return ELF_C_NULL;
+
+ return elf->cmd;
+}