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-rw-r--r--crypto/kerberosIV/appl/kip/common.c302
1 files changed, 0 insertions, 302 deletions
diff --git a/crypto/kerberosIV/appl/kip/common.c b/crypto/kerberosIV/appl/kip/common.c
deleted file mode 100644
index 4feb9c8..0000000
--- a/crypto/kerberosIV/appl/kip/common.c
+++ /dev/null
@@ -1,302 +0,0 @@
-/*
- * Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan
- * (Royal Institute of Technology, Stockholm, Sweden).
- * 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. Neither the name of the Institute nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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 "kip.h"
-
-RCSID("$Id: common.c,v 1.13.2.4 2000/10/18 23:31:51 assar Exp $");
-
-sig_atomic_t disconnect = 0;
-int isserver = 0;
-
-/*
- * Copy packets from `tundev' to `netdev' or vice versa.
- * Mode is used when reading from `tundev'
- */
-
-int
-copy_packets (int tundev, int netdev, int mtu, des_cblock *iv,
- des_key_schedule schedule)
-{
- des_cblock iv1, iv2;
- int num1 = 0, num2 = 0;
- u_char *buf;
-
- buf = malloc (mtu + 2);
- if (buf == NULL) {
- warnx("malloc(%d) failed", mtu);
- return 1;
- }
-
- memcpy (&iv1, iv, sizeof(iv1));
- memcpy (&iv2, iv, sizeof(iv2));
- while(!disconnect) {
- fd_set fdset;
- int ret, len;
-
- if (tundev >= FD_SETSIZE || netdev >= FD_SETSIZE) {
- warnx ("fd too large");
- return 1;
- }
-
- FD_ZERO(&fdset);
- FD_SET(tundev, &fdset);
- FD_SET(netdev, &fdset);
-
- ret = select (max(tundev, netdev)+1, &fdset, NULL, NULL, NULL);
- if (ret < 0) {
- if (errno == EINTR)
- continue;
- warn ("select");
- return 1;
- }
- if (FD_ISSET(tundev, &fdset)) {
- ret = read (tundev, buf + 2, mtu);
- if (ret == 0)
- return 0;
- if (ret < 0) {
- if (errno == EINTR)
- continue;
- else {
- warn("read");
- return ret;
- }
- }
- buf[0] = ret >> 8;
- buf[1] = ret & 0xFF;
- ret += 2;
- des_cfb64_encrypt (buf, buf, ret, schedule,
- &iv1, &num1, DES_ENCRYPT);
- ret = krb_net_write (netdev, buf, ret);
- if (ret < 0) {
- warn("write");
- return ret;
- }
- }
- if (FD_ISSET(netdev, &fdset)) {
- ret = read (netdev, buf, 2);
- if (ret == 0)
- return 0;
- if (ret < 0) {
- if (errno == EINTR)
- continue;
- else {
- warn("read");
- return ret;
- }
- }
- des_cfb64_encrypt (buf, buf, 2, schedule,
- &iv2, &num2, DES_DECRYPT);
- len = (buf[0] << 8 ) | buf[1];
- if (len > mtu) {
- fatal (-1, "buffer too large", schedule, &iv2);
- return -1;
- }
-
- if (len == 0) {
- len = read (netdev, buf, mtu);
- if (len < 1)
- len = 1;
- buf[len-1] = '\0';
-
- fatal (-1, buf, schedule, &iv2);
- return -1;
- }
-
- ret = krb_net_read (netdev, buf + 2, len);
- if (ret == 0)
- return 0;
- if (ret < 0) {
- if (errno == EINTR)
- continue;
- else {
- warn("read");
- return ret;
- }
- }
- des_cfb64_encrypt (buf + 2, buf + 2, len, schedule,
- &iv2, &num2, DES_DECRYPT);
- ret = krb_net_write (tundev, buf + 2, len);
- if (ret < 0) {
- warn("write");
- return ret;
- }
- }
- }
- return 0;
-}
-
-/*
- * Signal handler that justs waits for the children when they die.
- */
-
-RETSIGTYPE
-childhandler (int sig)
-{
- pid_t pid;
- int status;
-
- do {
- pid = waitpid (-1, &status, WNOHANG|WUNTRACED);
- } while(pid > 0);
- signal (SIGCHLD, childhandler);
- SIGRETURN(0);
-}
-
-/*
- * Find a free tunnel device and open it.
- * Return the interface name in `name, len'.
- */
-
-int
-tunnel_open (char *name, size_t len)
-{
- int fd;
- int i;
- char devname[256];
-
- for (i = 0; i < 256; ++i) {
- snprintf (devname, len, "%s%s%d", _PATH_DEV, TUNDEV, i);
- fd = open (devname, O_RDWR, 0);
- if (fd >= 0)
- break;
- if (errno == ENOENT || errno == ENODEV) {
- warn("open %s", name);
- return fd;
- }
- }
- if (fd < 0)
- warn("open %s" ,name);
- else
- snprintf (name, len, "%s%d", TUNDEV, i);
- return fd;
-}
-
-/*
- * run the command `cmd' with (...). return 0 if succesful or error
- * otherwise (and copy an error messages into `msg, len')
- */
-
-int
-kip_exec (const char *cmd, char *msg, size_t len, ...)
-{
- pid_t pid;
- char **argv;
- va_list ap;
-
- va_start(ap, len);
- argv = vstrcollect(&ap);
- va_end(ap);
-
- pid = fork();
- switch (pid) {
- case -1:
- snprintf (msg, len, "fork: %s", strerror(errno));
- return errno;
- case 0: {
- int fd = open (_PATH_DEVNULL, O_RDWR, 0600);
- if (fd < 0) {
- snprintf (msg, len, "open " _PATH_DEVNULL ": %s", strerror(errno));
- return errno;
- }
-
- close (STDIN_FILENO);
- close (STDOUT_FILENO);
- close (STDERR_FILENO);
-
- dup2 (fd, STDIN_FILENO);
- dup2 (fd, STDOUT_FILENO);
- dup2 (fd, STDERR_FILENO);
-
- execvp (cmd, argv);
- snprintf (msg, len, "execvp %s: %s", cmd, strerror(errno));
- return errno;
- }
- default: {
- int status;
-
- while (waitpid(pid, &status, 0) < 0)
- if (errno != EINTR) {
- snprintf (msg, len, "waitpid: %s", strerror(errno));
- return errno;
- }
-
- if (WIFEXITED(status)) {
- if (WEXITSTATUS(status) == 0) {
- return 0;
- } else {
- snprintf (msg, len, "child returned with %d",
- WEXITSTATUS(status));
- return 1;
- }
- } else if (WIFSIGNALED(status)) {
-#ifndef WCOREDUMP
-#define WCOREDUMP(X) 0
-#endif
- snprintf (msg, len, "terminated by signal num %d %s",
- WTERMSIG(status),
- WCOREDUMP(status) ? " coredumped" : "");
- return 1;
- } else if (WIFSTOPPED(status)) {
- snprintf (msg, len, "process stoped by signal %d",
- WSTOPSIG(status));
- return 1;
- } else {
- snprintf (msg, len, "child died in mysterious circumstances");
- return 1;
- }
- }
- }
-}
-
-/*
- * fatal error `s' occured.
- */
-
-void
-fatal (int fd, const char *s, des_key_schedule schedule, des_cblock *iv)
-{
- int16_t err = 0;
- int num = 0;
-
- if (fd != -1) {
- des_cfb64_encrypt ((unsigned char*) &err, (unsigned char*) &err,
- sizeof(err), schedule, iv, &num, DES_ENCRYPT);
-
- write (fd, &err, sizeof(err));
- write (fd, s, strlen(s)+1);
- }
- if (isserver)
- syslog(LOG_ERR, "%s", s);
- else
- warnx ("fatal error: %s", s);
-}
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