Imported Upstream version 20120410upstream/20120410upstream

1 files changed, 83 insertions, 0 deletions

diff --git a/libdwarf/dwarf_string.c b/libdwarf/dwarf_string.c
new file mode 100644
index 0000000..c73bc0a
--- /dev/null
+++ b/libdwarf/dwarf_string.c
@@ -0,0 +1,83 @@
+/*
+
+  Copyright (C) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+  Portions Copyright (C) 2009-2011 David Anderson. All Rights Reserved.
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms of version 2.1 of the GNU Lesser General Public License 
+  as published by the Free Software Foundation.
+
+  This program is distributed in the hope that it would be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
+
+  Further, this software is distributed without any warranty that it is
+  free of the rightful claim of any third person regarding infringement 
+  or the like.  Any license provided herein, whether implied or 
+  otherwise, applies only to this software file.  Patent licenses, if
+  any, provided herein do not apply to combinations of this program with 
+  other software, or any other product whatsoever.  
+
+  You should have received a copy of the GNU Lesser General Public 
+  License along with this program; if not, write the Free Software 
+  Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston MA 02110-1301,
+  USA.
+
+  Contact information:  Silicon Graphics, Inc., 1500 Crittenden Lane,
+  Mountain View, CA 94043, or:
+
+  http://www.sgi.com
+
+  For further information regarding this notice, see:
+
+  http://oss.sgi.com/projects/GenInfo/NoticeExplan
+
+*/
+
+
+
+#include "config.h"
+#include "dwarf_incl.h"
+
+int
+dwarf_get_str(Dwarf_Debug dbg,
+   Dwarf_Off offset,
+   char **string,
+   Dwarf_Signed * returned_str_len, Dwarf_Error * error)
+{
+    int res = DW_DLV_ERROR;
+
+    if (dbg == NULL) {
+        _dwarf_error(NULL, error, DW_DLE_DBG_NULL);
+        return (DW_DLV_ERROR);
+    }
+
+    if (offset == dbg->de_debug_str.dss_size) {
+        /*  Normal (if we've iterated thru the set of strings using
+            dwarf_get_str and are at the end). */
+        return DW_DLV_NO_ENTRY;
+    }
+    if (offset > dbg->de_debug_str.dss_size) {
+        _dwarf_error(dbg, error, DW_DLE_DEBUG_STR_OFFSET_BAD);
+        return (DW_DLV_ERROR);
+    }
+
+    if (string == NULL) {
+        _dwarf_error(dbg, error, DW_DLE_STRING_PTR_NULL);
+        return (DW_DLV_ERROR);
+    }
+
+    res = _dwarf_load_section(dbg, &dbg->de_debug_str,error);
+    if (res != DW_DLV_OK) {
+        return res;
+    }
+    if (!dbg->de_debug_str.dss_size) {
+        return (DW_DLV_NO_ENTRY);
+    }
+
+
+    *string = (char *) dbg->de_debug_str.dss_data + offset;
+
+    *returned_str_len = (strlen(*string));
+    return DW_DLV_OK;
+}