HardenedBSD/sbin/ldconfig/ldconfig.c
Stefan Eßer 484de86fbe ldconfig: remove ignored -v (verbose) option
The -v option used to print useful information when operating on a.out
format libraries. After the removal of a.out support, it was accepted
but did not have any effect.

Remove the option and update the man-page.

While here mention the set of historic options that are accepted but
ignored: "-elf", "-s", and "-v".

The FILES section contained outdated information and did not mention
the way library directories of optional ports and packages are
included in the library search path recorded in the hints file.

The description of the "-B" option was incorrect (described a planned
change) for big-endian platforms (powerpc64). These do still default
to big-endian hints files, since the current version of the "pkg"
program expects the hints file to be in native byte-order.

Reviewed by:	kib
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D44139
2024-03-01 16:40:55 +01:00

134 lines
3.4 KiB
C

/*-
* SPDX-License-Identifier: BSD-4-Clause
*
* Copyright (c) 1993,1995 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.
*/
#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <a.out.h>
#include <ctype.h>
#include <dirent.h>
#include <elf-hints.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "ldconfig.h"
#include "rtld_paths.h"
static void usage(void) __dead2;
int
main(int argc, char **argv)
{
const char *hints_file;
int c;
bool is_32, justread, merge, rescan, force_be;
force_be = is_32 = justread = merge = rescan = false;
while (argc > 1) {
if (strcmp(argv[1], "-aout") == 0) {
errx(1, "aout is not supported");
} else if (strcmp(argv[1], "-elf") == 0) {
argc--;
argv++;
} else if (strcmp(argv[1], "-32") == 0) {
is_32 = true;
argc--;
argv++;
} else {
break;
}
}
if (is_32)
hints_file = __PATH_ELF_HINTS("32");
else
hints_file = _PATH_ELF_HINTS;
while((c = getopt(argc, argv, "BRf:imrsv")) != -1) {
switch (c) {
case 'B':
force_be = true;
break;
case 'R':
rescan = true;
break;
case 'f':
hints_file = optarg;
break;
case 'i':
insecure = true;
break;
case 'm':
merge = true;
break;
case 'r':
justread = true;
break;
case 's':
/* was nostd */
break;
case 'v':
/* was verbose */
break;
default:
usage();
break;
}
}
if (justread) {
list_elf_hints(hints_file);
} else {
if (argc == optind)
rescan = true;
update_elf_hints(hints_file, argc - optind,
argv + optind, merge || rescan, force_be);
}
exit(0);
}
static void
usage(void)
{
fprintf(stderr,
"usage: ldconfig [-32] [-BRimr] [-f hints_file]"
"[directory | file ...]\n");
exit(1);
}