1*2de3b87aSKai Wang /*- 2*2de3b87aSKai Wang * Copyright (c) 2009 Kai Wang 3*2de3b87aSKai Wang * All rights reserved. 4*2de3b87aSKai Wang * 5*2de3b87aSKai Wang * Redistribution and use in source and binary forms, with or without 6*2de3b87aSKai Wang * modification, are permitted provided that the following conditions 7*2de3b87aSKai Wang * are met: 8*2de3b87aSKai Wang * 1. Redistributions of source code must retain the above copyright 9*2de3b87aSKai Wang * notice, this list of conditions and the following disclaimer. 10*2de3b87aSKai Wang * 2. Redistributions in binary form must reproduce the above copyright 11*2de3b87aSKai Wang * notice, this list of conditions and the following disclaimer in the 12*2de3b87aSKai Wang * documentation and/or other materials provided with the distribution. 13*2de3b87aSKai Wang * 14*2de3b87aSKai Wang * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15*2de3b87aSKai Wang * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16*2de3b87aSKai Wang * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17*2de3b87aSKai Wang * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18*2de3b87aSKai Wang * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19*2de3b87aSKai Wang * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20*2de3b87aSKai Wang * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21*2de3b87aSKai Wang * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22*2de3b87aSKai Wang * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23*2de3b87aSKai Wang * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24*2de3b87aSKai Wang * SUCH DAMAGE. 25*2de3b87aSKai Wang */ 26*2de3b87aSKai Wang 27*2de3b87aSKai Wang #include "_libdwarf.h" 28*2de3b87aSKai Wang 29*2de3b87aSKai Wang ELFTC_VCSID("$Id: dwarf_str.c 2075 2011-10-27 03:47:28Z jkoshy $"); 30*2de3b87aSKai Wang 31*2de3b87aSKai Wang int 32*2de3b87aSKai Wang dwarf_get_str(Dwarf_Debug dbg, Dwarf_Off offset, char **string, 33*2de3b87aSKai Wang Dwarf_Signed *ret_strlen, Dwarf_Error *error) 34*2de3b87aSKai Wang { 35*2de3b87aSKai Wang Dwarf_Section *ds; 36*2de3b87aSKai Wang 37*2de3b87aSKai Wang if (dbg == NULL || offset < 0 || string == NULL || ret_strlen == NULL) { 38*2de3b87aSKai Wang DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 39*2de3b87aSKai Wang return (DW_DLV_ERROR); 40*2de3b87aSKai Wang } 41*2de3b87aSKai Wang 42*2de3b87aSKai Wang ds = _dwarf_find_section(dbg, ".debug_str"); 43*2de3b87aSKai Wang if (ds == NULL) { 44*2de3b87aSKai Wang DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY); 45*2de3b87aSKai Wang return (DW_DLV_NO_ENTRY); 46*2de3b87aSKai Wang } 47*2de3b87aSKai Wang 48*2de3b87aSKai Wang if ((Dwarf_Unsigned) offset > ds->ds_size) { 49*2de3b87aSKai Wang DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT); 50*2de3b87aSKai Wang return (DW_DLV_ERROR); 51*2de3b87aSKai Wang } 52*2de3b87aSKai Wang 53*2de3b87aSKai Wang if ((Dwarf_Unsigned) offset == ds->ds_size) { 54*2de3b87aSKai Wang DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY); 55*2de3b87aSKai Wang return (DW_DLV_NO_ENTRY); 56*2de3b87aSKai Wang } 57*2de3b87aSKai Wang 58*2de3b87aSKai Wang *string = (char *) ds->ds_data + offset; 59*2de3b87aSKai Wang *ret_strlen = strlen(*string); 60*2de3b87aSKai Wang 61*2de3b87aSKai Wang return (DW_DLV_OK); 62*2de3b87aSKai Wang } 63