14484Sbinkertn@umich.edu/*- 24484Sbinkertn@umich.edu * Copyright (c) 2006 Joseph Koshy 34484Sbinkertn@umich.edu * All rights reserved. 44484Sbinkertn@umich.edu * 54484Sbinkertn@umich.edu * Redistribution and use in source and binary forms, with or without 64484Sbinkertn@umich.edu * modification, are permitted provided that the following conditions 74484Sbinkertn@umich.edu * are met: 84484Sbinkertn@umich.edu * 1. Redistributions of source code must retain the above copyright 94484Sbinkertn@umich.edu * notice, this list of conditions and the following disclaimer. 104484Sbinkertn@umich.edu * 2. Redistributions in binary form must reproduce the above copyright 114484Sbinkertn@umich.edu * notice, this list of conditions and the following disclaimer in the 124484Sbinkertn@umich.edu * documentation and/or other materials provided with the distribution. 134484Sbinkertn@umich.edu * 144484Sbinkertn@umich.edu * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 154484Sbinkertn@umich.edu * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 164484Sbinkertn@umich.edu * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 174484Sbinkertn@umich.edu * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 184484Sbinkertn@umich.edu * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 194484Sbinkertn@umich.edu * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 204484Sbinkertn@umich.edu * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 214484Sbinkertn@umich.edu * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 224484Sbinkertn@umich.edu * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 234484Sbinkertn@umich.edu * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 244484Sbinkertn@umich.edu * SUCH DAMAGE. 254484Sbinkertn@umich.edu */ 264484Sbinkertn@umich.edu 274484Sbinkertn@umich.edu 284484Sbinkertn@umich.edu#include <string.h> 294484Sbinkertn@umich.edu 304484Sbinkertn@umich.edu#include "_libelf.h" 314484Sbinkertn@umich.edu#include "libelf.h" 324484Sbinkertn@umich.edu 334484Sbinkertn@umich.edu/* 344484Sbinkertn@umich.edu * Retrieve a human readable translation for an error message. 354484Sbinkertn@umich.edu */ 364484Sbinkertn@umich.edu 374484Sbinkertn@umich.educonst char *_libelf_errors[] = { 384484Sbinkertn@umich.edu#define DEFINE_ERROR(N,S) [ELF_E_##N] = S 394484Sbinkertn@umich.edu DEFINE_ERROR(NONE, "No Error"), 404484Sbinkertn@umich.edu DEFINE_ERROR(ARCHIVE, "Malformed ar(1) archive"), 414484Sbinkertn@umich.edu DEFINE_ERROR(ARGUMENT, "Invalid argument"), 424484Sbinkertn@umich.edu DEFINE_ERROR(CLASS, "ELF class mismatch"), 434484Sbinkertn@umich.edu DEFINE_ERROR(DATA, "Invalid data buffer descriptor"), 444484Sbinkertn@umich.edu DEFINE_ERROR(HEADER, "Missing or malformed ELF header"), 454484Sbinkertn@umich.edu DEFINE_ERROR(IO, "I/O error"), 464484Sbinkertn@umich.edu DEFINE_ERROR(LAYOUT, "Layout constraint violation"), 474484Sbinkertn@umich.edu DEFINE_ERROR(MODE, "Incorrect ELF descriptor mode"), 484484Sbinkertn@umich.edu DEFINE_ERROR(RANGE, "Value out of range of target"), 494484Sbinkertn@umich.edu DEFINE_ERROR(RESOURCE, "Resource exhaustion"), 504484Sbinkertn@umich.edu DEFINE_ERROR(SECTION, "Invalid section descriptor"), 514484Sbinkertn@umich.edu DEFINE_ERROR(SEQUENCE, "API calls out of sequence"), 524484Sbinkertn@umich.edu DEFINE_ERROR(UNIMPL, "Unimplemented feature"), 534484Sbinkertn@umich.edu DEFINE_ERROR(VERSION, "Unknown ELF API version"), 544484Sbinkertn@umich.edu DEFINE_ERROR(NUM, "Unknown error") 554484Sbinkertn@umich.edu#undef DEFINE_ERROR 564484Sbinkertn@umich.edu}; 574484Sbinkertn@umich.edu 584484Sbinkertn@umich.educonst char * 594484Sbinkertn@umich.eduelf_errmsg(int error) 604484Sbinkertn@umich.edu{ 614484Sbinkertn@umich.edu int oserr; 624484Sbinkertn@umich.edu 634484Sbinkertn@umich.edu if (error == 0 && (error = LIBELF_PRIVATE(error)) == 0) 644484Sbinkertn@umich.edu return NULL; 654484Sbinkertn@umich.edu else if (error == -1) 664484Sbinkertn@umich.edu error = LIBELF_PRIVATE(error); 674484Sbinkertn@umich.edu 684484Sbinkertn@umich.edu oserr = error >> LIBELF_OS_ERROR_SHIFT; 694484Sbinkertn@umich.edu error &= LIBELF_ELF_ERROR_MASK; 704484Sbinkertn@umich.edu 714484Sbinkertn@umich.edu if (error < 0 || error >= ELF_E_NUM) 724484Sbinkertn@umich.edu return _libelf_errors[ELF_E_NUM]; 734484Sbinkertn@umich.edu if (oserr) { 748349Sgblack@eecs.umich.edu strncpy(LIBELF_PRIVATE(msg), _libelf_errors[error], 754484Sbinkertn@umich.edu sizeof(LIBELF_PRIVATE(msg))); 768349Sgblack@eecs.umich.edu strncat(LIBELF_PRIVATE(msg), ": ", sizeof(LIBELF_PRIVATE(msg))); 778349Sgblack@eecs.umich.edu strncat(LIBELF_PRIVATE(msg), strerror(oserr), 784484Sbinkertn@umich.edu sizeof(LIBELF_PRIVATE(msg))); 794484Sbinkertn@umich.edu return (const char *)&LIBELF_PRIVATE(msg); 804484Sbinkertn@umich.edu } 814484Sbinkertn@umich.edu return _libelf_errors[error]; 824484Sbinkertn@umich.edu} 83