1 /* Get string. 2 Copyright (C) 2004 Red Hat, Inc. 3 Written by Ulrich Drepper <drepper (at) redhat.com>, 2004. 4 5 This program is Open Source software; you can redistribute it and/or 6 modify it under the terms of the Open Software License version 1.0 as 7 published by the Open Source Initiative. 8 9 You should have received a copy of the Open Software License along 10 with this program; if not, you may obtain a copy of the Open Software 11 License version 1.0 from http://www.opensource.org/licenses/osl.php or 12 by writing the Open Source Initiative c/o Lawrence Rosen, Esq., 13 3001 King Ranch Road, Ukiah, CA 95482. */ 14 15 #ifdef HAVE_CONFIG_H 16 # include <config.h> 17 #endif 18 19 #include <string.h> 20 #include "libdwP.h" 21 22 23 const char * 24 dwarf_getstring (dbg, offset, lenp) 25 Dwarf *dbg; 26 Dwarf_Off offset; 27 size_t *lenp; 28 { 29 if (dbg == NULL) 30 return NULL; 31 32 if (dbg->sectiondata[IDX_debug_str] == NULL 33 || offset >= dbg->sectiondata[IDX_debug_str]->d_size) 34 { 35 no_string: 36 __libdw_seterrno (DWARF_E_NO_STRING); 37 return NULL; 38 } 39 40 const char *result = ((const char *) dbg->sectiondata[IDX_debug_str]->d_buf 41 + offset); 42 const char *endp = memchr (result, '\0', 43 dbg->sectiondata[IDX_debug_str]->d_size - offset); 44 if (endp == NULL) 45 goto no_string; 46 47 if (lenp != NULL) 48 *lenp = endp - result; 49 50 return result; 51 } 52
