Imported Upstream version 0.8.13upstream

1 files changed, 54 insertions, 0 deletions

diff --git a/lib/nextscn.c b/lib/nextscn.c
new file mode 100644
index 0000000..4543f83
--- /dev/null
+++ b/lib/nextscn.c
@@ -0,0 +1,54 @@
+/*
+nextscn.c - implementation of the elf_nextscn(3) function.
+Copyright (C) 1995 - 1998 Michael Riepe
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+This library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+*/
+
+#include <private.h>
+
+#ifndef lint
+static const char rcsid[] = "@(#) $Id: nextscn.c,v 1.7 2008/05/23 08:15:35 michael Exp $";
+#endif /* lint */
+
+Elf_Scn*
+elf_nextscn(Elf *elf, Elf_Scn *scn) {
+    if (!elf) {
+	return NULL;
+    }
+    elf_assert(elf->e_magic == ELF_MAGIC);
+    if (scn) {
+	elf_assert(scn->s_magic == SCN_MAGIC);
+	if (scn->s_elf == elf) {
+	    return scn->s_link;
+	}
+	seterr(ERROR_ELFSCNMISMATCH);
+    }
+    else if (elf->e_kind != ELF_K_ELF) {
+	seterr(ERROR_NOTELF);
+    }
+    else if (elf->e_ehdr || _elf_cook(elf)) {
+	elf_assert(elf->e_ehdr);
+	for (scn = elf->e_scn_1; scn; scn = scn->s_link) {
+	    elf_assert(scn->s_magic == SCN_MAGIC);
+	    elf_assert(scn->s_elf == elf);
+	    if (scn->s_index == 1) {
+		return scn;
+	    }
+	}
+	seterr(ERROR_NOSUCHSCN);
+    }
+    return NULL;
+}