7f56eb7b93
warning handling and allows for link-time warnings with a modified version of gas. Note: Not all of the newer bits were updated such as some of the non-x86 machine-dependant code is relevant to FreeBSD right now. Obtained from: NetBSD
140 lines
3.4 KiB
C
140 lines
3.4 KiB
C
/*
|
|
* Copyright (c) 1993 Paul Kranenburg
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Paul Kranenburg.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
|
|
*
|
|
* $Id: ldd.c,v 1.4 1994/06/15 22:41:03 rich Exp $
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/file.h>
|
|
#include <sys/time.h>
|
|
#include <sys/resource.h>
|
|
#include <sys/wait.h>
|
|
#include <a.out.h>
|
|
#include <err.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
void
|
|
usage()
|
|
{
|
|
extern char *__progname;
|
|
|
|
fprintf(stderr, "Usage: %s <filename> ...\n", __progname);
|
|
exit(1);
|
|
}
|
|
|
|
int
|
|
main(argc, argv)
|
|
int argc;
|
|
char *argv[];
|
|
{
|
|
int rval;
|
|
int c;
|
|
|
|
while ((c = getopt(argc, argv, "")) != EOF) {
|
|
switch (c) {
|
|
default:
|
|
usage();
|
|
/*NOTREACHED*/
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (argc <= 0) {
|
|
usage();
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
/* ld.so magic */
|
|
setenv("LD_TRACE_LOADED_OBJECTS", "", 1);
|
|
|
|
rval = 0;
|
|
while (argc--) {
|
|
int fd;
|
|
struct exec hdr;
|
|
int status;
|
|
|
|
if ((fd = open(*argv, O_RDONLY, 0)) < 0) {
|
|
warn("%s", *argv);
|
|
rval |= 1;
|
|
argv++;
|
|
continue;
|
|
}
|
|
if (read(fd, &hdr, sizeof hdr) != sizeof hdr
|
|
|| (N_GETFLAG(hdr) & EX_DPMASK) != EX_DYNAMIC
|
|
#if 1 /* Compatibility */
|
|
|| hdr.a_entry < __LDPGSZ
|
|
#endif
|
|
) {
|
|
|
|
warnx("%s: not a dynamic executable", *argv);
|
|
(void)close(fd);
|
|
rval |= 1;
|
|
argv++;
|
|
continue;
|
|
}
|
|
(void)close(fd);
|
|
|
|
printf("%s:\n", *argv);
|
|
fflush(stdout);
|
|
|
|
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",
|
|
*argv, WTERMSIG(status));
|
|
rval |= 1;
|
|
} else if (WIFEXITED(status) && WEXITSTATUS(status)) {
|
|
fprintf(stderr, "%s: exit status %d\n",
|
|
*argv, WEXITSTATUS(status));
|
|
rval |= 1;
|
|
}
|
|
break;
|
|
case 0:
|
|
rval |= execl(*argv, *argv, NULL) != 0;
|
|
perror(*argv);
|
|
_exit(1);
|
|
}
|
|
argv++;
|
|
}
|
|
|
|
return rval;
|
|
}
|