1*2de3b87aSKai Wang /*- 2*2de3b87aSKai Wang * Copyright (c) 2006,2008 Joseph Koshy 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 <sys/cdefs.h> 28*2de3b87aSKai Wang 29*2de3b87aSKai Wang #include <ar.h> 30*2de3b87aSKai Wang #include <assert.h> 31*2de3b87aSKai Wang #include <libelf.h> 32*2de3b87aSKai Wang 33*2de3b87aSKai Wang #include "_libelf.h" 34*2de3b87aSKai Wang 35*2de3b87aSKai Wang ELFTC_VCSID("$Id: elf_getident.c 2225 2011-11-26 18:55:54Z jkoshy $"); 36*2de3b87aSKai Wang 37*2de3b87aSKai Wang char * 38*2de3b87aSKai Wang elf_getident(Elf *e, size_t *sz) 39*2de3b87aSKai Wang { 40*2de3b87aSKai Wang 41*2de3b87aSKai Wang if (e == NULL) { 42*2de3b87aSKai Wang LIBELF_SET_ERROR(ARGUMENT, 0); 43*2de3b87aSKai Wang goto error; 44*2de3b87aSKai Wang } 45*2de3b87aSKai Wang 46*2de3b87aSKai Wang if (e->e_cmd == ELF_C_WRITE && e->e_rawfile == NULL) { 47*2de3b87aSKai Wang LIBELF_SET_ERROR(SEQUENCE, 0); 48*2de3b87aSKai Wang goto error; 49*2de3b87aSKai Wang } 50*2de3b87aSKai Wang 51*2de3b87aSKai Wang assert(e->e_kind != ELF_K_AR || e->e_cmd == ELF_C_READ); 52*2de3b87aSKai Wang 53*2de3b87aSKai Wang if (sz) { 54*2de3b87aSKai Wang if (e->e_kind == ELF_K_AR) 55*2de3b87aSKai Wang *sz = SARMAG; 56*2de3b87aSKai Wang else if (e->e_kind == ELF_K_ELF) 57*2de3b87aSKai Wang *sz = EI_NIDENT; 58*2de3b87aSKai Wang else 59*2de3b87aSKai Wang *sz = e->e_rawsize; 60*2de3b87aSKai Wang } 61*2de3b87aSKai Wang 62*2de3b87aSKai Wang return ((char *) e->e_rawfile); 63*2de3b87aSKai Wang 64*2de3b87aSKai Wang error: 65*2de3b87aSKai Wang if (sz) 66*2de3b87aSKai Wang *sz = 0; 67*2de3b87aSKai Wang return (NULL); 68*2de3b87aSKai Wang } 69