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Current Path: /usr/src/contrib/tcp_wrappers

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📄 BLURB(1.7 KB)
📄 Banners.Makefile(2.17 KB)
📄 CHANGES(18.75 KB)
📄 DISCLAIMER(1.21 KB)
📄 Makefile(32.68 KB)
📄 README(47.08 KB)
📄 README.IRIX(2.57 KB)
📄 README.NIS(6.52 KB)
📄 clean_exit.c(1.07 KB)
📄 diag.c(1.44 KB)
📄 environ.c(4.75 KB)
📄 eval.c(3.59 KB)
📄 fakelog.c(1012 B)
📄 fix_options.c(3.7 KB)
📄 fromhost.c(1.37 KB)
📄 hosts_access.3(3.52 KB)
📄 hosts_access.5(15.97 KB)
📄 hosts_access.c(14.13 KB)
📄 hosts_ctl.c(1.08 KB)
📄 hosts_options.5(6.5 KB)
📄 inetcf.c(8.03 KB)
📄 inetcf.h(516 B)
📄 misc.c(1.9 KB)
📄 miscd.c(3.07 KB)
📄 mystdarg.h(571 B)
📄 myvsyslog.c(766 B)
📄 ncr.c(2.52 KB)
📄 options.c(13.85 KB)
📄 patchlevel.h(88 B)
📄 percent_m.c(797 B)
📄 percent_x.c(2.37 KB)
📄 printf.ck(39 B)
📄 ptx.c(2.65 KB)
📄 refuse.c(911 B)
📄 rfc931.c(5.95 KB)
📄 safe_finger.c(4.98 KB)
📄 scaffold.c(6.38 KB)
📄 scaffold.h(370 B)
📄 setenv.c(931 B)
📄 shell_cmd.c(2.13 KB)
📄 socket.c(12.06 KB)
📄 strcasecmp.c(3.78 KB)
📄 tcpd.8(6.86 KB)
📄 tcpd.c(3.49 KB)
📄 tcpd.h(8.18 KB)
📄 tcpdchk.8(2.51 KB)
📄 tcpdchk.c(12.84 KB)
📄 tcpdmatch.8(3.18 KB)
📄 tcpdmatch.c(10.69 KB)
📄 tli-sequent.c(4.85 KB)
📄 tli-sequent.h(411 B)
📄 tli.c(10.34 KB)
📄 try-from.c(2.01 KB)
📄 update.c(3.05 KB)
📄 vfprintf.c(3.12 KB)
📄 workarounds.c(7.57 KB)

Editing: ncr.c

/*
  * This part for NCR UNIX with is from Andrew Maffei (arm@aqua.whoi.edu). It
  * assumes TLI throughout. In order to look up endpoint address information
  * we must talk to the "timod" streams module. For some reason "timod" wants
  * to sit directly on top of the device driver. Therefore we pop off all
  * streams modules except the driver, install the "timod" module so that we
  * can figure out network addresses, and then restore the original state.
  */

#ifndef lint
static char sccsid[] = "@(#) ncr.c 1.1 94/12/28 17:42:34";
#endif

#include <sys/types.h>
#include <stdio.h>
#include <syslog.h>
#include <sys/tiuser.h>
#include <stropts.h>
#include <sys/conf.h>

#include "tcpd.h"

#define MAX_MODULE_COUNT	10	/* XXX */

/* fromhost - tear down the streams stack then rebuild it */

void    fromhost(request)
struct request_info *request;
{
    int     i;
    int     num_mod;
    struct str_list str_list;
    struct str_mlist mod_buffer[MAX_MODULE_COUNT];
    int     fd = request->fd;

str_list.sl_nmods = MAX_MODULE_COUNT;
    str_list.sl_modlist = &mod_buffer[0];

/*
     * On systems with WIN streams support we have to be careful about what
     * is on the stream we are passed. This code POPs off all modules above
     * the pseudo driver, pushes timod, gets the host address information,
     * pops timod and then pushes all modules back on the stream.
     * 
     * Some state may be lost in this process. /usr/etc/tlid seems to do special
     * things to the stream depending on the TCP port being serviced. (not a
     * very nice thing to do!). It is unclear what to do if this code breaks
     * - the stream may be left in an unknown condition.
     */
    if ((num_mod = ioctl(fd, I_LIST, NULL)) < 0)
	tcpd_warn("fromhost: LIST failed: %m");
    if (ioctl(fd, I_LIST, &str_list) < 0)
	tcpd_warn("fromhost: LIST failed: %m");

/*
     * POP stream modules except for the driver.
     */
    for (i = 0; i < num_mod - 1; i++)
	if (ioctl(fd, I_POP, 0) < 0)
	    tcpd_warn("fromhost: POP %s: %m", mod_buffer[i].l_name);

/*
     * PUSH timod so that host address ioctls can be executed.
     */
    if (ioctl(fd, I_PUSH, "timod") < 0)
	tcpd_warn("fromhost: PUSH timod: %m");
    tli_host(request);

/*
     * POP timod, we're done with it now.
     */
    if (ioctl(fd, I_POP, 0) < 0)
	tcpd_warn("fromhost: POP timod: %m");

/*
     * Restore stream modules.
     */
    for (i = num_mod - 2; i >= 0; i--)
	if (ioctl(fd, I_PUSH, mod_buffer[i].l_name) < 0)
	    tcpd_warn("fromhost: PUSH %s: %m", mod_buffer[i].l_name);
}

003 File Manager

Editing: ncr.c

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