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Current Path: /usr/src/crypto/openssh/regress

usr / src / crypto / openssh / regress /

📁 ..
📄 Makefile(6.8 KB)
📄 README.regress(3.91 KB)
📄 addrmatch.sh(2.06 KB)
📄 agent-getpeereid.sh(1.13 KB)
📄 agent-pkcs11.sh(1.86 KB)
📄 agent-ptrace.sh(1.31 KB)
📄 agent-timeout.sh(928 B)
📄 agent.sh(2.96 KB)
📄 allow-deny-users.sh(1.45 KB)
📄 authinfo.sh(574 B)
📄 banner.sh(1.24 KB)
📄 broken-pipe.sh(281 B)
📄 brokenkeys.sh(462 B)
📄 cert-file.sh(5.25 KB)
📄 cert-hostkey.sh(10.34 KB)
📄 cert-userkey.sh(11.95 KB)
📄 cfginclude.sh(4.39 KB)
📄 cfgmatch.sh(3.5 KB)
📄 cfgmatchlisten.sh(6.34 KB)
📄 cfgparse.sh(2.17 KB)
📄 check-perm.c(4.33 KB)
📄 cipher-speed.sh(799 B)
📄 conch-ciphers.sh(796 B)
📄 connect-privsep.sh(1.02 KB)
📄 connect-uri.sh(816 B)
📄 connect.sh(222 B)
📄 dhgex.sh(1.47 KB)
📄 dsa_ssh2.prv(863 B)
📄 dsa_ssh2.pub(732 B)
📄 dynamic-forward.sh(1.48 KB)
📄 envpass.sh(1.54 KB)
📄 exit-status.sh(562 B)
📄 forcecommand.sh(1.1 KB)
📄 forward-control.sh(7.71 KB)
📄 forwarding.sh(4.22 KB)
📄 host-expand.sh(384 B)
📄 hostkey-agent.sh(1.6 KB)
📄 hostkey-rotate.sh(3.86 KB)
📄 integrity.sh(2.33 KB)
📄 kextype.sh(587 B)
📄 key-options.sh(3.22 KB)
📄 keygen-change.sh(581 B)
📄 keygen-convert.sh(1.08 KB)
📄 keygen-knownhosts.sh(6.42 KB)
📄 keygen-moduli.sh(702 B)
📄 keys-command.sh(2.39 KB)
📄 keyscan.sh(403 B)
📄 keytype.sh(1.84 KB)
📄 krl.sh(6.45 KB)
📄 limit-keytype.sh(3.65 KB)
📄 localcommand.sh(351 B)
📄 login-timeout.sh(588 B)
📁 misc
📄 mkdtemp.c(1.53 KB)
📄 modpipe.c(3.81 KB)
📄 moduli.in(1.59 KB)
📄 multiplex.sh(7.09 KB)
📄 multipubkey.sh(2.31 KB)
📄 netcat.c(39.92 KB)
📄 portnum.sh(624 B)
📄 principals-command.sh(5.48 KB)
📄 proto-mismatch.sh(368 B)
📄 proto-version.sh(527 B)
📄 proxy-connect.sh(624 B)
📄 putty-ciphers.sh(678 B)
📄 putty-kex.sh(553 B)
📄 putty-transfer.sh(1021 B)
📄 reconfigure.sh(855 B)
📄 reexec.sh(878 B)
📄 rekey.sh(4.12 KB)
📄 rsa_openssh.prv(883 B)
📄 rsa_openssh.pub(213 B)
📄 rsa_ssh2.prv(924 B)
📄 scp-ssh-wrapper.sh(914 B)
📄 scp-uri.sh(2.01 KB)
📄 scp.sh(3.5 KB)
📄 setuid-allowed.c(1.45 KB)
📄 sftp-badcmds.sh(2.22 KB)
📄 sftp-batch.sh(1.16 KB)
📄 sftp-chroot.sh(845 B)
📄 sftp-cmds.sh(7.29 KB)
📄 sftp-glob.sh(2.47 KB)
📄 sftp-perm.sh(5.23 KB)
📄 sftp-uri.sh(1.59 KB)
📄 sftp.sh(737 B)
📄 ssh-com-client.sh(3.02 KB)
📄 ssh-com-keygen.sh(1.38 KB)
📄 ssh-com-sftp.sh(1.19 KB)
📄 ssh-com.sh(2.71 KB)
📄 ssh2putty.sh(693 B)
📄 sshcfgparse.sh(3.8 KB)
📄 sshd-log-wrapper.sh(285 B)
📄 stderr-after-eof.sh(603 B)
📄 stderr-data.sh(709 B)
📄 t11.ok(51 B)
📄 t4.ok(52 B)
📄 t5.ok(66 B)
📄 test-exec.sh(13.05 KB)
📄 transfer.sh(583 B)
📄 try-ciphers.sh(715 B)
📁 unittests
📄 valgrind-unit.sh(610 B)
📄 yes-head.sh(401 B)

Editing: modpipe.c

/*
 * Copyright (c) 2012 Damien Miller <djm@mindrot.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/* $OpenBSD: modpipe.c,v 1.6 2013/11/21 03:16:47 djm Exp $ */

#include "includes.h"

#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <errno.h>
#ifdef HAVE_ERR_H
# include <err.h>
#endif
#include "openbsd-compat/getopt_long.c"

static void
usage(void)
{
	fprintf(stderr, "Usage: modpipe -w [-m modspec ...] < in > out\n");
	fprintf(stderr, "modspec is one of:\n");
	fprintf(stderr, "    xor:offset:value       - XOR \"value\" at \"offset\"\n");
	fprintf(stderr, "    andor:offset:val1:val2 - AND \"val1\" then OR \"val2\" at \"offset\"\n");
	exit(1);
}

#define MAX_MODIFICATIONS 256
struct modification {
	enum { MOD_XOR, MOD_AND_OR } what;
	unsigned long long offset;
	u_int8_t m1, m2;
};

static void
parse_modification(const char *s, struct modification *m)
{
	char what[16+1];
	int n, m1, m2;

bzero(m, sizeof(*m));
	if ((n = sscanf(s, "%16[^:]%*[:]%llu%*[:]%i%*[:]%i",
	    what, &m->offset, &m1, &m2)) < 3)
		errx(1, "Invalid modification spec \"%s\"", s);
	if (strcasecmp(what, "xor") == 0) {
		if (n > 3)
			errx(1, "Invalid modification spec \"%s\"", s);
		if (m1 < 0 || m1 > 0xff)
			errx(1, "Invalid XOR modification value");
		m->what = MOD_XOR;
		m->m1 = m1;
	} else if (strcasecmp(what, "andor") == 0) {
		if (n != 4)
			errx(1, "Invalid modification spec \"%s\"", s);
		if (m1 < 0 || m1 > 0xff)
			errx(1, "Invalid AND modification value");
		if (m2 < 0 || m2 > 0xff)
			errx(1, "Invalid OR modification value");
		m->what = MOD_AND_OR;
		m->m1 = m1;
		m->m2 = m2;
	} else
		errx(1, "Invalid modification type \"%s\"", what);
}

int
main(int argc, char **argv)
{
	int ch;
	u_char buf[8192];
	size_t total;
	ssize_t r, s, o;
	struct modification mods[MAX_MODIFICATIONS];
	u_int i, wflag = 0, num_mods = 0;

while ((ch = getopt(argc, argv, "wm:")) != -1) {
		switch (ch) {
		case 'm':
			if (num_mods >= MAX_MODIFICATIONS)
				errx(1, "Too many modifications");
			parse_modification(optarg, &(mods[num_mods++]));
			break;
		case 'w':
			wflag = 1;
			break;
		default:
			usage();
			/* NOTREACHED */
		}
	}
	for (total = 0;;) {
		r = s = read(STDIN_FILENO, buf, sizeof(buf));
		if (r == 0)
			break;
		if (r < 0) {
			if (errno == EAGAIN || errno == EINTR)
				continue;
			err(1, "read");
		}
		for (i = 0; i < num_mods; i++) {
			if (mods[i].offset < total ||
			    mods[i].offset >= total + s)
				continue;
			switch (mods[i].what) {
			case MOD_XOR:
				buf[mods[i].offset - total] ^= mods[i].m1;
				break;
			case MOD_AND_OR:
				buf[mods[i].offset - total] &= mods[i].m1;
				buf[mods[i].offset - total] |= mods[i].m2;
				break;
			}
		}
		for (o = 0; o < s; o += r) {
			r = write(STDOUT_FILENO, buf, s - o);
			if (r == 0)
				break;
			if (r < 0) {
				if (errno == EAGAIN || errno == EINTR)
					continue;
				err(1, "write");
			}
		}
		total += s;
	}
	/* Warn if modifications not reached in input stream */
	r = 0;
	for (i = 0; wflag && i < num_mods; i++) {
		if (mods[i].offset < total)
			continue;
		r = 1;
		fprintf(stderr, "modpipe: warning - mod %u not reached\n", i);
	}
	return r;
}

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Editing: modpipe.c

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