/* $NetBSD: elf_errmsg.c,v 1.1.1.2 2009/12/29 16:58:08 thorpej Exp $ */ /*- * Copyright (c) 2006 Joseph Koshy * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include /* __FBSDID("$FreeBSD: src/lib/libelf/elf_errmsg.c,v 1.2.10.1.2.1 2009/10/25 01:10:29 kensmith Exp $"); */ #include #include #include "_libelf.h" /* * Retrieve a human readable translation for an error message. */ const char *_libelf_errors[] = { #define DEFINE_ERROR(N,S) [ELF_E_##N] = S DEFINE_ERROR(NONE, "No Error"), DEFINE_ERROR(ARCHIVE, "Malformed ar(1) archive"), DEFINE_ERROR(ARGUMENT, "Invalid argument"), DEFINE_ERROR(CLASS, "ELF class mismatch"), DEFINE_ERROR(DATA, "Invalid data buffer descriptor"), DEFINE_ERROR(HEADER, "Missing or malformed ELF header"), DEFINE_ERROR(IO, "I/O error"), DEFINE_ERROR(LAYOUT, "Layout constraint violation"), DEFINE_ERROR(MODE, "Incorrect ELF descriptor mode"), DEFINE_ERROR(RANGE, "Value out of range of target"), DEFINE_ERROR(RESOURCE, "Resource exhaustion"), DEFINE_ERROR(SECTION, "Invalid section descriptor"), DEFINE_ERROR(SEQUENCE, "API calls out of sequence"), DEFINE_ERROR(UNIMPL, "Unimplemented feature"), DEFINE_ERROR(VERSION, "Unknown ELF API version"), DEFINE_ERROR(NUM, "Unknown error") #undef DEFINE_ERROR }; const char * elf_errmsg(int error) { int oserr; if (error == 0 && (error = LIBELF_PRIVATE(error)) == 0) return NULL; else if (error == -1) error = LIBELF_PRIVATE(error); oserr = error >> LIBELF_OS_ERROR_SHIFT; error &= LIBELF_ELF_ERROR_MASK; if (error < 0 || error >= ELF_E_NUM) return _libelf_errors[ELF_E_NUM]; if (oserr) { strlcpy(LIBELF_PRIVATE(msg), _libelf_errors[error], sizeof(LIBELF_PRIVATE(msg))); strlcat(LIBELF_PRIVATE(msg), ": ", sizeof(LIBELF_PRIVATE(msg))); strlcat(LIBELF_PRIVATE(msg), strerror(oserr), sizeof(LIBELF_PRIVATE(msg))); return (const char *)&LIBELF_PRIVATE(msg); } return _libelf_errors[error]; } #if defined(LIBELF_TEST_HOOKS) const char * _libelf_get_unknown_error_message(void) { return _libelf_errors[ELF_E_NUM]; } const char * _libelf_get_no_error_message(void) { return _libelf_errors[0]; } #endif /* LIBELF_TEST_HOOKS */