12de3b87aSKai Wang /*- 22de3b87aSKai Wang * Copyright (c) 2009 Kai Wang 32de3b87aSKai Wang * All rights reserved. 42de3b87aSKai Wang * 52de3b87aSKai Wang * Redistribution and use in source and binary forms, with or without 62de3b87aSKai Wang * modification, are permitted provided that the following conditions 72de3b87aSKai Wang * are met: 82de3b87aSKai Wang * 1. Redistributions of source code must retain the above copyright 92de3b87aSKai Wang * notice, this list of conditions and the following disclaimer. 102de3b87aSKai Wang * 2. Redistributions in binary form must reproduce the above copyright 112de3b87aSKai Wang * notice, this list of conditions and the following disclaimer in the 122de3b87aSKai Wang * documentation and/or other materials provided with the distribution. 132de3b87aSKai Wang * 142de3b87aSKai Wang * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 152de3b87aSKai Wang * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 162de3b87aSKai Wang * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 172de3b87aSKai Wang * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 182de3b87aSKai Wang * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 192de3b87aSKai Wang * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 202de3b87aSKai Wang * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 212de3b87aSKai Wang * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 222de3b87aSKai Wang * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 232de3b87aSKai Wang * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 242de3b87aSKai Wang * SUCH DAMAGE. 252de3b87aSKai Wang */ 262de3b87aSKai Wang 272de3b87aSKai Wang #include "_libdwarf.h" 282de3b87aSKai Wang 29*839529caSEd Maste ELFTC_VCSID("$Id: dwarf_str.c 3295 2016-01-08 22:08:10Z jkoshy $"); 302de3b87aSKai Wang 312de3b87aSKai Wang int 322de3b87aSKai Wang dwarf_get_str(Dwarf_Debug dbg, Dwarf_Off offset, char **string, 332de3b87aSKai Wang Dwarf_Signed *ret_strlen, Dwarf_Error *error) 342de3b87aSKai Wang { 352de3b87aSKai Wang Dwarf_Section *ds; 362de3b87aSKai Wang 37*839529caSEd Maste if (dbg == NULL || string == NULL || ret_strlen == NULL) { 382de3b87aSKai Wang DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 392de3b87aSKai Wang return (DW_DLV_ERROR); 402de3b87aSKai Wang } 412de3b87aSKai Wang 422de3b87aSKai Wang ds = _dwarf_find_section(dbg, ".debug_str"); 432de3b87aSKai Wang if (ds == NULL) { 442de3b87aSKai Wang DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY); 452de3b87aSKai Wang return (DW_DLV_NO_ENTRY); 462de3b87aSKai Wang } 472de3b87aSKai Wang 48*839529caSEd Maste if (offset > ds->ds_size) { 492de3b87aSKai Wang DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 502de3b87aSKai Wang return (DW_DLV_ERROR); 512de3b87aSKai Wang } 522de3b87aSKai Wang 53*839529caSEd Maste if (offset == ds->ds_size) { 542de3b87aSKai Wang DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY); 552de3b87aSKai Wang return (DW_DLV_NO_ENTRY); 562de3b87aSKai Wang } 572de3b87aSKai Wang 582de3b87aSKai Wang *string = (char *) ds->ds_data + offset; 592de3b87aSKai Wang *ret_strlen = strlen(*string); 602de3b87aSKai Wang 612de3b87aSKai Wang return (DW_DLV_OK); 622de3b87aSKai Wang } 63