0d6aaaf295
cases, since we never did 64 bit a.out. now ldd on 32 bit a.out at least tries to work, but fails (on sparc or sparc64, no idea yet for x86) the same way that all dynamic a.out binaries fail.
141 lines
4.0 KiB
C
141 lines
4.0 KiB
C
/* $NetBSD: ldd_aout.c,v 1.2 2009/01/11 00:06:55 mrg Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Paul Kranenburg.
|
|
*
|
|
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <sys/cdefs.h>
|
|
#ifndef lint
|
|
__RCSID("$NetBSD: ldd_aout.c,v 1.2 2009/01/11 00:06:55 mrg Exp $");
|
|
#endif /* not lint */
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
|
|
#include <a.out.h>
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
/* from <compat/netbsd32/netbsd32_exec.h> */
|
|
/*
|
|
* Header prepended to each a.out file.
|
|
* only manipulate the a_midmag field via the
|
|
* N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros below.
|
|
*/
|
|
typedef unsigned int netbsd32_u_long;
|
|
struct netbsd32_exec {
|
|
netbsd32_u_long a_midmag; /* htonl(flags<<26 | mid<<16 | magic) */
|
|
netbsd32_u_long a_text; /* text segment size */
|
|
netbsd32_u_long a_data; /* initialized data size */
|
|
netbsd32_u_long a_bss; /* uninitialized data size */
|
|
netbsd32_u_long a_syms; /* symbol table size */
|
|
netbsd32_u_long a_entry; /* entry point */
|
|
netbsd32_u_long a_trsize; /* text relocation size */
|
|
netbsd32_u_long a_drsize; /* data relocation size */
|
|
};
|
|
|
|
|
|
/*
|
|
* XXX put this here, rather than a separate ldd_aout.h
|
|
#include "ldd.h"
|
|
*/
|
|
int aout_ldd(char *, char *, char *);
|
|
|
|
int
|
|
aout_ldd(char *file, char *fmt1, char *fmt2)
|
|
{
|
|
struct stat st;
|
|
struct netbsd32_exec hdr;
|
|
int status, rval;
|
|
int fd;
|
|
|
|
fd = open(file, O_RDONLY);
|
|
if (fd == -1) {
|
|
warn("%s", file);
|
|
return -1;
|
|
}
|
|
if (fstat(fd, &st) < 0) {
|
|
warn("%s", file);
|
|
close(fd);
|
|
return -1;
|
|
}
|
|
|
|
lseek(fd, 0, SEEK_SET);
|
|
if (read(fd, &hdr, sizeof hdr) != sizeof hdr
|
|
|| (N_GETFLAG(hdr) & EX_DPMASK) != EX_DYNAMIC
|
|
#if 1 /* Compatibility */
|
|
|| hdr.a_entry < N_PAGSIZ(hdr)
|
|
#endif
|
|
) {
|
|
/* calling function prints warning */
|
|
return -1;
|
|
}
|
|
|
|
setenv("LD_TRACE_LOADED_OBJECTS", "", 1);
|
|
if (fmt1)
|
|
setenv("LD_TRACE_LOADED_OBJECTS_FMT1", fmt1, 1);
|
|
if (fmt2)
|
|
setenv("LD_TRACE_LOADED_OBJECTS_FMT2", fmt2, 1);
|
|
|
|
setenv("LD_TRACE_LOADED_OBJECTS_PROGNAME", file, 1);
|
|
if (fmt1 == NULL && fmt2 == NULL)
|
|
printf("%s:\n", file);
|
|
fflush(stdout);
|
|
|
|
rval = 0;
|
|
switch (fork()) {
|
|
case -1:
|
|
err(1, "fork");
|
|
break;
|
|
default:
|
|
if (wait(&status) <= 0) {
|
|
warn("wait");
|
|
rval |= 1;
|
|
} else if (WIFSIGNALED(status)) {
|
|
fprintf(stderr, "%s: signal %d\n",
|
|
file, WTERMSIG(status));
|
|
rval |= 1;
|
|
} else if (WIFEXITED(status) && WEXITSTATUS(status)) {
|
|
fprintf(stderr, "%s: exit status %d\n",
|
|
file, WEXITSTATUS(status));
|
|
rval |= 1;
|
|
}
|
|
break;
|
|
case 0:
|
|
rval |= execl(file, file, NULL) != 0;
|
|
perror(file);
|
|
_exit(1);
|
|
}
|
|
return rval;
|
|
}
|