Index: configure
===================================================================
--- configure (nonexistent)
+++ configure (revision 5)
@@ -0,0 +1,372 @@
+#!/bin/sh
+#
+# This file was generated by confgen version 2.
+# Do not edit.
+#
+
+PREFIX='/usr'
+#EXECPREFIX='$PREFIX'
+INSTALLROOT=''
+BINMODE='755'
+#DAEMONMODE='$BINMODE'
+MANMODE='644'
+
+while [ x$1 != x ]; do case $1 in
+
+ --help)
+ cat <<EOF
+Usage: configure [options]
+ --help Show this message
+ --with-debug Enable debugging
+ --prefix=path Prefix for location of files [/usr]
+ --exec-prefix=path Location for arch-depedent files [prefix]
+ --installroot=root Top of filesystem tree to install in [/]
+ --binmode=mode Mode for binaries [755]
+ --daemonmode=mode Mode for daemon binaries [same as binmode]
+ --manmode=mode Mode for manual pages [644]
+ --with-c-compiler=cc Program for compiling C source [guessed]
+EOF
+ exit 0;;
+ --verbose) ;;
+ --quiet) ;;
+
+ --subdir) . ../configure.defs;;
+
+ --with-debug|--debug) DEBUG=1;;
+ --prefix=*) PREFIX=`echo $1 | sed 's/^[^=]*=//'` ;;
+ --exec-prefix=*) EXECPREFIX=`echo $1 | sed 's/^[^=]*=//'` ;;
+ --installroot=*) INSTALLROOT=`echo $1 | sed 's/^[^=]*=//'` ;;
+ --binmode=*) BINMODE=`echo $1 | sed 's/^[^=]*=//'` ;;
+ --daemonmode=*) DAEMONMODE=`echo $1 | sed 's/^[^=]*=//'` ;;
+ --manmode=*) MANMODE=`echo $1 | sed 's/^[^=]*=//'` ;;
+ --with-c-compiler=*) CC=`echo $1 | sed 's/^[^=]*=//'` ;;
+ *) echo "Unrecognized option: $1"; exit 1;;
+esac
+shift
+done
+
+if [ x$EXECPREFIX = x ]; then
+ EXECPREFIX="$PREFIX"
+fi
+
+if [ x$DAEMONMODE = x ]; then
+ DAEMONMODE="$BINMODE"
+fi
+
+BINDIR="$EXECPREFIX/bin"
+SBINDIR="$EXECPREFIX/sbin"
+MANDIR="$PREFIX/share/man"
+
+echo "Directories: $BINDIR $SBINDIR $MANDIR "
+
+if [ x$INSTALLROOT != x ]; then
+ echo "Installing in chroot tree rooted at $INSTALLROOT"
+fi
+
+##################################################
+
+WARNINGS='-Wall -W -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline '
+
+cat << EOF > __conftest.c
+ int main() { int class=0; return class; }
+EOF
+
+if [ x"$CC" = x ]; then
+ echo -n 'Looking for a C compiler... '
+ for TRY in egcs gcc g++ CC c++ cc; do
+ (
+ $TRY __conftest.c -o __conftest || exit 1;
+# ./__conftest || exit 1;
+ ) >/dev/null 2>&1 || continue;
+ CC=$TRY
+ break;
+ done
+ if [ x"$CC" = x ]; then
+ echo 'failed.'
+ echo 'Cannot find a C compiler. Run configure with --with-c-compiler.'
+ rm -f __conftest*
+ exit
+ fi
+ echo "$CC"
+else
+ echo -n 'Checking if C compiler works... '
+ if (
+ $CC __conftest.c -o __conftest || exit 1
+# ./__conftest || exit 1
+ ) >/dev/null 2>&1; then
+ echo 'yes'
+ else
+ echo 'no'
+ echo 'Compiler '"$CC"' does not exist or cannot compile C; try another.'
+ rm -f __conftest*
+ exit
+ fi
+fi
+
+echo -n "Checking if $CC accepts gcc warnings... "
+if (
+ $CC $WARNINGS __conftest.c -o __conftest || exit 1
+ ) >/dev/null 2>&1; then
+ echo 'yes'
+ CC_WARNINGS=1
+else
+ echo 'no'
+fi
+
+if [ x$DEBUG = x ]; then
+ echo -n "Checking if $CC accepts -O2... "
+ if (
+ $CC -O2 __conftest.c -o __conftest
+ ) >/dev/null 2>&1; then
+ echo 'yes'
+ CFLAGS="$CFLAGS -O2"
+ else
+ echo 'no'
+ echo -n "Checking if $CC accepts -O... "
+ if (
+ $CC -O __conftest.c -o __conftest
+ ) >/dev/null 2>&1; then
+ echo 'yes'
+ CFLAGS="$CFLAGS -O"
+ else
+ echo 'no'
+ fi
+ fi
+
+else
+ echo -n "Checking if $CC accepts -g... "
+ if (
+ $CC -g __conftest.c -o __conftest
+ ) >/dev/null 2>&1; then
+ echo 'yes'
+ CFLAGS="$CFLAGS -g"
+ else
+ echo 'no'
+ fi
+
+fi
+
+LDFLAGS=$LDFLAGS
+LIBS=$LIBS
+
+rm -f __conftest*
+
+##################################################
+
+echo -n 'Checking for ncurses... '
+cat <<EOF >__conftest.c
+#include <stdio.h>
+#include <curses.h>
+#ifndef KEY_DOWN
+syntax error. /* not ncurses */
+#endif
+int main() {
+ endwin();
+ return 0;
+}
+
+EOF
+if (
+ $CC $CFLAGS __conftest.c -lncurses -o __conftest || exit 1
+ ) >/dev/null 2>&1; then
+ echo 'yes'
+ NCURSES=1
+else
+ if (
+ $CC $CFLAGS -I/usr/include/ncurses __conftest.c -lncurses -o __conftest || exit 1
+ ) >/dev/null 2>&1; then
+ echo '-I/usr/include/ncurses'
+ CFLAGS="$CFLAGS -I/usr/include/ncurses"
+ NCURSES=1
+ else
+ echo 'no'
+ fi
+fi
+
+if [ x$NCURSES != x ]; then
+ LIBCURSES=-lncurses
+else
+ echo -n 'Checking for traditional curses... '
+cat <<EOF >__conftest.c
+#include <stdio.h>
+#include <termcap.h>
+#include <curses.h>
+int main() {
+ tgetent(NULL, NULL); endwin(); return 0;
+}
+
+EOF
+ if (
+ $CC $CFLAGS __conftest.c -lcurses -o __conftest || exit 1
+ ) >/dev/null 2>&1; then
+ echo '-lcurses'
+ LIBCURSES=-lcurses
+ else
+ if (
+ $CC $CFLAGS __conftest.c -lcurses -ltermcap -o __conftest || exit 1
+ ) >/dev/null 2>&1; then
+ echo '-lcurses -ltermcap'
+ LIBCURSES='-lcurses -ltermcap'
+ else
+ echo 'not found'
+ echo 'This package needs curses to run.'
+ rm -f __conftest*
+ exit
+ fi
+ fi
+fi
+rm -f __conftest*
+
+##################################################
+
+echo -n 'Checking for socklen_t... '
+cat <<EOF >__conftest.c
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+int main() {
+ struct sockaddr_in sn;
+ socklen_t len = sizeof(sn);
+ getpeername(0, (struct sockaddr *)&sn, &len);
+ return 0;
+}
+
+EOF
+if (
+ $CC $CFLAGS __conftest.c -o __conftest || exit 1
+ ) >/dev/null 2>&1; then
+ echo 'yes'
+else
+ if (
+ $CC $CFLAGS -Dsocklen_t=int __conftest.c -o __conftest || exit 1
+ ) >/dev/null 2>&1; then
+ echo 'int'
+ CFLAGS="$CFLAGS -Dsocklen_t=int"
+ else
+ if (
+ $CC $CFLAGS -Dsocklen_t=size_t __conftest.c -o __conftest || exit 1
+ ) >/dev/null 2>&1; then
+ echo 'size_t'
+ CFLAGS="$CFLAGS -Dsocklen_t=size_t"
+ else
+ echo 'no'
+ echo 'Cannot work out what to use for socklen_t. Help...'
+ rm -f __conftest*
+ exit
+ fi
+ fi
+fi
+rm -f __conftest*
+
+##################################################
+
+echo -n 'Checking for snprintf declaration... '
+cat <<EOF >__conftest.c
+#include <stdio.h>
+int main() {
+ void *x = (void *)snprintf;
+ printf("%lx", (long)x);
+ return 0;
+}
+
+EOF
+if (
+ $CC $CFLAGS __conftest.c -o __conftest || exit 1
+ ) >/dev/null 2>&1; then
+ echo 'ok'
+else
+ if (
+ $CC $CFLAGS -D_GNU_SOURCE __conftest.c -o __conftest || exit 1
+# ./__conftest || exit 1
+ ) >/dev/null 2>&1; then
+ echo '-D_GNU_SOURCE'
+ CFLAGS="$CFLAGS -D_GNU_SOURCE"
+ else
+ echo 'manual'
+ CFLAGS="$CFLAGS -DDECLARE_SNPRINTF"
+ fi
+fi
+rm -f __conftest*
+
+echo -n 'Checking for snprintf implementation... '
+cat <<EOF >__conftest.c
+#include <stdio.h>
+#include <string.h>
+#ifdef DECLARE_SNPRINTF
+#ifdef __cplusplus
+extern "C"
+#endif /*__cplusplus*/
+int snprintf(char *, int, const char *, ...);
+#endif /*DECLARE_SNPRINTF*/
+int main() {
+ char buf[32];
+ snprintf(buf, 8, "%s", "1234567890");
+ if (strlen(buf)!=7) return 1;
+ return 0;
+}
+
+EOF
+if (
+ $CC $CFLAGS __conftest.c $LIBBSD -o __conftest || exit 1
+# ./__conftest || exit 1
+ ) >/dev/null 2>&1; then
+ echo 'ok'
+else
+ if (
+ $CC $CFLAGS __conftest.c -lsnprintf $LIBBSD -o __conftest || exit 1
+# ./__conftest || exit 1
+ ) >/dev/null 2>&1; then
+ echo '-lsnprintf'
+ LIBS="$LIBS -lsnprintf"
+ else
+ if (
+ $CC $CFLAGS __conftest.c -ldb $LIBBSD -o __conftest || exit 1
+# ./__conftest || exit 1
+ ) >/dev/null 2>&1; then
+ echo '-ldb'
+ LIBS="$LIBS -ldb"
+ else
+ echo 'missing'
+ echo 'This package requires snprintf.'
+ rm -f __conftest*
+ exit
+ fi
+ fi
+fi
+rm -f __conftest*
+
+##################################################
+
+## libbsd should go last in case it's broken
+if [ "x$LIBBSD" != x ]; then
+ LIBS="$LIBS $LIBBSD"
+fi
+
+echo 'Generating MCONFIG...'
+(
+ echo -n '# Generated by configure (confgen version 2) on '
+ date
+ echo '#'
+ echo
+
+ echo "BINDIR=$BINDIR"
+ echo "SBINDIR=$SBINDIR"
+ echo "MANDIR=$MANDIR"
+ echo "BINMODE=$BINMODE"
+ echo "DAEMONMODE=$DAEMONMODE"
+ echo "MANMODE=$MANMODE"
+ echo "PREFIX=$PREFIX"
+ echo "EXECPREFIX=$EXECPREFIX"
+ echo "INSTALLROOT=$INSTALLROOT"
+ echo "CC=$CC"
+ if [ x$CC_WARNINGS != x ]; then
+ CFLAGS="$CFLAGS $WARNINGS"
+ fi
+
+ echo "CFLAGS=$CFLAGS" | sed 's/= */=/'
+ echo "LDFLAGS=$LDFLAGS" | sed 's/= */=/'
+ echo "LIBS=$LIBS" | sed 's/= */=/'
+
+ echo "LIBCURSES=$LIBCURSES"
+) > MCONFIG
+
Property changes on: configure
___________________________________________________________________
Added: svn:executable
## -0,0 +1 ##
+*
\ No newline at end of property
Index: talkd/announce.c
===================================================================
--- talkd/announce.c (nonexistent)
+++ talkd/announce.c (revision 5)
@@ -0,0 +1,215 @@
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * 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 the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
+ */
+
+/*
+ * From: @(#)announce.c 5.9 (Berkeley) 2/26/91
+ */
+char ann_rcsid[] =
+ "$Id: announce.c,v 1.8 2000/07/22 15:27:39 dholland Exp $";
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <time.h>
+#include <sys/wait.h>
+#include <sys/socket.h>
+#include <errno.h>
+#include <syslog.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <string.h>
+#include <paths.h>
+#include "prot_talkd.h"
+#include "proto.h"
+
+/*
+ * Announce an invitation to talk.
+ *
+ * Because the tty driver insists on attaching a terminal-less
+ * process to any terminal that it writes on, we must fork a child
+ * to protect ourselves.
+ *
+ * That hasn't been true since, hrm, 4.2BSD maybe? Even in System V,
+ * we can use O_NOCTTY. On the other hand, forking is a good idea in
+ * case the tty hangs. But at present we don't take advantage of that;
+ * we'd wait() forever.
+ */
+
+
+/*
+ * Reject control codes and other crap.
+ * FUTURE: don't clear high ascii if the tty is in 8-bit mode
+ * Note that we don't need to let through tabs or newlines here.
+ */
+static int safechar(int ch) {
+ if (ch>127 || ch<32) ch = '?';
+ return ch;
+}
+
+#define max(a,b) ( (a) > (b) ? (a) : (b) )
+#define N_LINES 5
+#define N_CHARS 120
+
+/*
+ * Build a block of characters containing the message.
+ * It is sent blank filled and in a single block to
+ * try to keep the message in one piece if the recipient
+ * is in, say, vi at the time.
+ */
+static void
+print_mesg(int fd, CTL_MSG *request, const char *remote_machine)
+{
+ struct timeval clocc;
+ struct timezone zone;
+ struct tm *localclock;
+ char line_buf[N_LINES][N_CHARS];
+ int sizes[N_LINES];
+ char big_buf[N_LINES*(N_CHARS+2)+16];
+ char *bptr, *lptr;
+ int i, j, max_size;
+ time_t footime;
+
+ i = 0;
+ max_size = 0;
+ gettimeofday(&clocc, &zone);
+ footime = clocc.tv_sec;
+ localclock = localtime(&footime);
+ snprintf(line_buf[i], N_CHARS, " ");
+ sizes[i] = strlen(line_buf[i]);
+ max_size = max(max_size, sizes[i]);
+ i++;
+ snprintf(line_buf[i], N_CHARS,
+ "Message from Talk_Daemon@%s at %d:%02d ...",
+ ourhostname, localclock->tm_hour, localclock->tm_min);
+ sizes[i] = strlen(line_buf[i]);
+ max_size = max(max_size, sizes[i]);
+ i++;
+ snprintf(line_buf[i], N_CHARS, "talk: connection requested by %s@%s.",
+ request->l_name, remote_machine);
+ sizes[i] = strlen(line_buf[i]);
+ max_size = max(max_size, sizes[i]);
+ i++;
+ snprintf(line_buf[i], N_CHARS, "talk: respond with: talk %s@%s",
+ request->l_name, remote_machine);
+ sizes[i] = strlen(line_buf[i]);
+ max_size = max(max_size, sizes[i]);
+ i++;
+ snprintf(line_buf[i], N_CHARS, " ");
+ sizes[i] = strlen(line_buf[i]);
+ max_size = max(max_size, sizes[i]);
+ i++;
+ bptr = big_buf;
+ *bptr++ = ''; /* send something to wake them up */
+ *bptr++ = '\r'; /* add a \r in case of raw mode */
+ *bptr++ = '\n';
+ for (i = 0; i < N_LINES; i++) {
+ /* copy the line into the big buffer */
+ lptr = line_buf[i];
+ while (*lptr != '\0')
+ *(bptr++) = safechar(*(lptr++));
+ /* pad out the rest of the lines with blanks */
+ for (j = sizes[i]; j < max_size + 2; j++)
+ *(bptr++) = ' ';
+ *(bptr++) = '\r'; /* add a \r in case of raw mode */
+ *(bptr++) = '\n';
+ }
+ *bptr = 0;
+ write(fd, big_buf, strlen(big_buf));
+}
+
+/*
+ * See if the user is accepting messages. If so, announce that
+ * a talk is requested.
+ */
+static int
+announce_proc(CTL_MSG *request, const char *remote_machine)
+{
+ char full_tty[32];
+ int fd;
+ struct stat stbuf;
+
+ snprintf(full_tty, sizeof(full_tty), "%s/%s", _PATH_DEV,
+ request->r_tty);
+ if (access(full_tty, F_OK) != 0)
+ return FAILED;
+ fd = open(full_tty, O_WRONLY|O_NOCTTY);
+ if (fd<0) {
+ return (PERMISSION_DENIED);
+ }
+ if (fstat(fd, &stbuf) < 0) {
+ return (PERMISSION_DENIED);
+ }
+ if ((stbuf.st_mode&020) == 0) {
+ return (PERMISSION_DENIED);
+ }
+ print_mesg(fd, request, remote_machine);
+ close(fd);
+ return SUCCESS;
+}
+
+int
+announce(CTL_MSG *request, const char *remote_machine)
+{
+ int pid, val, status;
+
+ pid = fork();
+ if (pid==-1) {
+ /* fork failed */
+ return FAILED;
+ }
+ if (pid==0) {
+ /* child */
+ status = announce_proc(request, remote_machine);
+ _exit(status);
+ }
+
+ /* we are the parent, so wait for the child */
+ do {
+ val = wait(&status);
+ if (val == -1) {
+ if (errno == EINTR || errno == EAGAIN)
+ continue;
+ /* shouldn't happen */
+ syslog(LOG_WARNING, "announce: wait: %m");
+ return (FAILED);
+ }
+ } while (val != pid);
+
+ if (WIFSIGNALED(status)) {
+ /* we were killed by some signal */
+ return FAILED;
+ }
+ /* Send back the exit/return code */
+ return (WEXITSTATUS(status));
+}
Index: talkd/table.c
===================================================================
--- talkd/table.c (nonexistent)
+++ talkd/table.c (revision 5)
@@ -0,0 +1,224 @@
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * 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 the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
+ */
+
+/*
+ * From: @(#)table.c 5.7 (Berkeley) 2/26/91
+ */
+char table_rcsid[] =
+ "$Id: table.c,v 1.9 1998/11/27 07:58:47 dholland Exp $";
+
+/*
+ * Routines to handle insertion, deletion, etc on the table
+ * of requests kept by the daemon. Nothing fancy here, linear
+ * search on a double-linked list. A time is kept with each
+ * entry so that overly old invitations can be eliminated.
+ *
+ * Consider this a mis-guided attempt at modularity
+ */
+#include <sys/param.h>
+#include <sys/time.h>
+#include <time.h>
+#include <sys/socket.h>
+#include <syslog.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <netinet/in.h>
+
+#include "prot_talkd.h"
+#include "proto.h"
+
+#define MAX_ID 16000 /* << 2^15 so I don't have sign troubles */
+
+typedef struct table_entry {
+ struct table_entry *next;
+ struct table_entry *last;
+ CTL_MSG request;
+ time_t time;
+} TABLE_ENTRY;
+
+static TABLE_ENTRY *table = NULL;
+
+/*
+ * Generate a unique non-zero sequence number
+ */
+int
+new_id(void)
+{
+ static int current_id = 0;
+
+ current_id = (current_id + 1) % MAX_ID;
+ /* 0 is reserved, helps to pick up bugs */
+ if (current_id == 0)
+ current_id = 1;
+ return current_id;
+}
+
+/*
+ * Classic delete from a double-linked list
+ */
+static void
+deleteit(TABLE_ENTRY *ptr)
+{
+ print_request("deleteit", &ptr->request);
+ if (table == ptr) {
+ table = ptr->next;
+ }
+ else if (ptr->last != NULL) {
+ ptr->last->next = ptr->next;
+ }
+ if (ptr->next != NULL) {
+ ptr->next->last = ptr->last;
+ }
+ free(ptr);
+}
+
+/*
+ * Go through the table and chuck out anything out of date
+ */
+static void
+expire(void)
+{
+ time_t current_time = time(NULL);
+ TABLE_ENTRY *ptr;
+
+ for (ptr = table; ptr != NULL; ptr = ptr->next) {
+ if ((current_time - ptr->time) > MAX_LIFE) {
+ /* the entry is too old */
+ print_request("deleting expired entry",
+ &ptr->request);
+ deleteit(ptr);
+ }
+ }
+}
+
+/*
+ * Look in the table for an invitation that matches the current
+ * request looking for an invitation
+ */
+CTL_MSG *
+find_match(CTL_MSG *request)
+{
+ TABLE_ENTRY *ptr;
+
+ expire();
+
+ print_request("find_match", request);
+ for (ptr = table; ptr != NULL; ptr = ptr->next) {
+ print_request("", &ptr->request);
+ if (strcmp(request->l_name, ptr->request.r_name) == 0 &&
+ strcmp(request->r_name, ptr->request.l_name) == 0 &&
+ ptr->request.type == LEAVE_INVITE)
+ return (&ptr->request);
+ }
+ return NULL;
+}
+
+/*
+ * Look for an identical request, as opposed to a complementary
+ * one as find_match does
+ */
+CTL_MSG *
+find_request(CTL_MSG *request)
+{
+ TABLE_ENTRY *ptr;
+
+ expire();
+
+ /*
+ * See if this is a repeated message.
+ */
+ print_request("find_request", request);
+ for (ptr = table; ptr != NULL; ptr = ptr->next) {
+ print_request("", &ptr->request);
+ if (strcmp(request->r_name, ptr->request.r_name) == 0 &&
+ strcmp(request->l_name, ptr->request.l_name) == 0 &&
+ request->type == ptr->request.type &&
+ request->pid == ptr->request.pid) {
+ /* update the time if we 'touch' it */
+ ptr->time = time(NULL);
+ return (&ptr->request);
+ }
+ }
+ return NULL;
+}
+
+void
+insert_table(CTL_MSG *request, CTL_RESPONSE *response)
+{
+ TABLE_ENTRY *ptr;
+
+ request->id_num = new_id();
+ response->id_num = htonl(request->id_num);
+
+ /* insert a new entry into the top of the list */
+ ptr = malloc(sizeof(TABLE_ENTRY));
+ if (ptr == NULL) {
+ syslog(LOG_ERR, "insert_table: Out of memory");
+ _exit(1);
+ }
+ ptr->time = time(NULL);
+ ptr->request = *request;
+
+ ptr->next = table;
+ if (ptr->next != NULL) {
+ ptr->next->last = ptr;
+ }
+ ptr->last = NULL;
+ table = ptr;
+}
+
+/*
+ * Delete the invitation with id 'id_num'
+ */
+int
+delete_invite(unsigned id_num)
+{
+ TABLE_ENTRY *ptr;
+
+ ptr = table;
+ debug("delete_invite(%d)\n", id_num);
+
+ for (ptr = table; ptr != NULL; ptr = ptr->next) {
+ if (ptr->request.id_num == id_num)
+ break;
+ print_request("", &ptr->request);
+ }
+ if (ptr != NULL) {
+ deleteit(ptr);
+ return SUCCESS;
+ }
+ return NOT_HERE;
+}
+
Index: talkd/talkd.c
===================================================================
--- talkd/talkd.c (nonexistent)
+++ talkd/talkd.c (revision 5)
@@ -0,0 +1,359 @@
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * 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 the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
+ */
+
+char copyright[] =
+ "@(#) Copyright (c) 1983 Regents of the University of California.\n"
+ "All rights reserved.\n";
+
+/*
+ * From: @(#)talkd.c 5.8 (Berkeley) 2/26/91
+ */
+char talkd_rcsid[] =
+ "$Id: talkd.c,v 1.12 1999/09/28 22:04:15 netbug Exp $";
+
+#include "../version.h"
+
+/*
+ * talkd - internet talk daemon
+ * loops waiting for and processing requests until idle for a while,
+ * then exits.
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <signal.h>
+#include <syslog.h>
+#include <time.h>
+#include <errno.h>
+#include <unistd.h>
+/*#include <stdio.h>*/
+#include <stdlib.h>
+#include <string.h>
+#include <netdb.h>
+#include <paths.h>
+#include "prot_talkd.h"
+#include "proto.h"
+
+#define TIMEOUT 30
+#define MAXIDLE 120
+#define MINUDPSRCPORT 1024
+
+#if !defined(MAXHOSTNAMELEN)
+#define MAXHOSTNAMELEN 64
+#endif
+char ourhostname[MAXHOSTNAMELEN];
+
+static time_t lastmsgtime;
+
+static void
+timeout(int ignore)
+{
+ (void)ignore;
+
+ if (time(NULL) - lastmsgtime >= MAXIDLE)
+ _exit(0);
+ signal(SIGALRM, timeout);
+ alarm(TIMEOUT);
+}
+
+/*
+ * Returns true if the address belongs to the local host. If it's
+ * not a loopback address, try binding to it.
+ */
+static int
+is_local_address(u_int32_t addr)
+{
+ struct sockaddr_in sn;
+ int sock, ret;
+ if (addr == htonl(INADDR_LOOPBACK)) {
+ return 1;
+ }
+
+ sock = socket(AF_INET, SOCK_DGRAM, 0);
+ if (sock<0) {
+ syslog(LOG_WARNING, "socket: %s", strerror(errno));
+ return 0;
+ }
+ memset(&sn, 0, sizeof(sn));
+ sn.sin_family = AF_INET;
+ sn.sin_port = htons(0);
+ sn.sin_addr.s_addr = addr;
+ ret = bind(sock, (struct sockaddr *)&sn, sizeof(sn));
+ close(sock);
+ return ret==0;
+}
+
+static void
+send_packet(CTL_RESPONSE *response, struct sockaddr_in *sn, int quirk)
+{
+ char buf[2*sizeof(CTL_RESPONSE)];
+ size_t sz = sizeof(CTL_RESPONSE);
+ int cc, err=0;
+
+ memcpy(buf, response, sz);
+ if (quirk) {
+ sz = irrationalize_reply(buf, sizeof(buf), quirk);
+ }
+ while (sz > 0) {
+ cc = sendto(1, buf, sz, 0, (struct sockaddr *)sn, sizeof(*sn));
+ if (cc<0) {
+ syslog(LOG_WARNING, "sendto: %s", strerror(errno));
+ if (err) return;
+ err = 1;
+ }
+ else sz -= cc;
+ }
+}
+
+/*
+ * Issue an error packet. Should not assume anything other than the
+ * header part (the u_int8_t's) of mp is valid, and assume as little
+ * as possible about that, since it might have been a packet we
+ * couldn't dequirk.
+ */
+static void
+send_reject_packet(CTL_MSG *mp, struct sockaddr_in *sn, int code, int quirk)
+{
+ CTL_RESPONSE rsp;
+ memset(&rsp, 0, sizeof(rsp));
+ rsp.vers = TALK_VERSION;
+ rsp.type = mp->type;
+ rsp.answer = code;
+ send_packet(&rsp, sn, quirk);
+}
+
+static void
+do_one_packet(void)
+{
+ char inbuf[2*sizeof(CTL_MSG)];
+ int quirk = 0;
+ CTL_RESPONSE response;
+ CTL_MSG *mp;
+ char theirhost[MAXHOSTNAMELEN];
+ const char *theirip;
+
+ struct hostent *hp;
+ struct sockaddr_in sn;
+ int cc, i, ok;
+ socklen_t addrlen;
+ int theirport;
+
+ addrlen = sizeof(sn);
+ cc = recvfrom(0, inbuf, sizeof(inbuf), 0,
+ (struct sockaddr *)&sn, &addrlen);
+ if (cc<0) {
+ if (errno==EINTR || errno==EAGAIN) {
+ return;
+ }
+ syslog(LOG_WARNING, "recvfrom: %s", strerror(errno));
+ return;
+ }
+
+ /*
+ * This should be set on any input, even trash, because even
+ * trash input will cause us to be restarted if we exit.
+ */
+ lastmsgtime = time(NULL);
+
+ if (addrlen!=sizeof(sn)) {
+ syslog(LOG_WARNING, "recvfrom: bogus address length");
+ return;
+ }
+ if (sn.sin_family!=AF_INET) {
+ syslog(LOG_WARNING, "recvfrom: bogus address family");
+ return;
+ }
+
+ theirport = ntohs(sn.sin_port);
+ if (theirport < MINUDPSRCPORT) {
+ syslog(LOG_WARNING, "%d: bad port", theirport);
+ return;
+ }
+
+ /*
+ * If we get here we have an address we can reply to, although
+ * it may not be good for much. If possible, reply to it, because
+ * if we just drop the packet the remote talk client will keep
+ * throwing junk at us.
+ */
+ theirip = inet_ntoa(sn.sin_addr);
+ mp = (CTL_MSG *)inbuf;
+
+ /*
+ * Check they're not being weenies.
+ * We should look into using libwrap here so hosts.deny works.
+ * Wrapping talkd with tcpd isn't very useful.
+ */
+ hp = gethostbyaddr((char *)&sn.sin_addr, sizeof(struct in_addr),
+ AF_INET);
+ if (hp == NULL) {
+ syslog(LOG_WARNING, "%s: bad dns", theirip);
+ send_reject_packet(mp, &sn, MACHINE_UNKNOWN, 0);
+ return;
+ }
+ strncpy(theirhost, hp->h_name, sizeof(theirhost));
+ theirhost[sizeof(theirhost)-1] = 0;
+
+ hp = gethostbyname(theirhost);
+ if (hp == NULL) {
+ syslog(LOG_WARNING, "%s: bad dns", theirip);
+ send_reject_packet(mp, &sn, MACHINE_UNKNOWN, 0);
+ return;
+ }
+
+ for (i=ok=0; hp->h_addr_list[i] && !ok; i++) {
+ if (!memcmp(hp->h_addr_list[i], &sn.sin_addr,
+ sizeof(sn.sin_addr))) ok = 1;
+ }
+ if (!ok) {
+ syslog(LOG_WARNING, "%s: bad dns", theirip);
+ send_reject_packet(mp, &sn, MACHINE_UNKNOWN, 0);
+ return;
+ }
+
+ /*
+ * Try to straighten out bad packets.
+ */
+ quirk = rationalize_packet(inbuf, cc, sizeof(inbuf), &sn);
+ if (quirk<0) {
+ print_broken_packet(inbuf, cc, &sn);
+ syslog(LOG_WARNING, "%s (%s): unintelligible packet",
+ theirhost, theirip);
+ send_reject_packet(mp, &sn, UNKNOWN_REQUEST, 0);
+ return;
+ }
+
+ /*
+ * Make sure we know what we're getting into.
+ */
+ if (mp->vers!=TALK_VERSION) {
+ syslog(LOG_WARNING, "%s (%s): bad protocol version %d",
+ theirhost, theirip, mp->vers);
+ send_reject_packet(mp, &sn, BADVERSION, 0);
+ return;
+ }
+
+ /*
+ * LEAVE_INVITE messages should only come from localhost.
+ * Of course, old talk clients send from our hostname's IP
+ * rather than localhost, complicating the issue...
+ */
+ if (mp->type==LEAVE_INVITE && !is_local_address(sn.sin_addr.s_addr)) {
+ syslog(LOG_WARNING, "%s (%s) sent invite packet",
+ theirhost, theirip);
+ send_reject_packet(mp, &sn, MACHINE_UNKNOWN, quirk);
+ return;
+ }
+
+ /*
+ * Junk the reply address they reported for themselves. Write
+ * the real one over it because announce.c gets it from there.
+ */
+ mp->ctl_addr.ta_family = AF_INET;
+ mp->ctl_addr.ta_port = sn.sin_port;
+ mp->ctl_addr.ta_addr = sn.sin_addr.s_addr;
+
+ /*
+ * Since invite messages only come from localhost, and nothing
+ * but invite messages use the TCP address, force it to be our
+ * address.
+ *
+ * Actually, if it's a local address, leave it alone. talk has
+ * to play games to figure out the right interface address to
+ * use, and we don't want to get into that - they can work it
+ * out, but we can't since we don't know who they're trying to
+ * talk to.
+ *
+ * If it's not a local address, someone's trying to play games
+ * with us. Rather than trying to pick a local address to use,
+ * reject the packet.
+ */
+ if (mp->type==LEAVE_INVITE) {
+ mp->addr.ta_family = AF_INET;
+ if (!is_local_address(mp->addr.ta_addr)) {
+ syslog(LOG_WARNING,
+ "invite packet had bad return address");
+ send_reject_packet(mp, &sn, BADADDR, quirk);
+ return;
+ }
+ }
+ else {
+ /* non-invite packets don't use this field */
+ memset(&mp->addr, 0, sizeof(mp->addr));
+ }
+
+ process_request(mp, &response, theirhost);
+
+ /* can block here, is this what I want? */
+ send_packet(&response, &sn, quirk);
+}
+
+int
+main(int argc, char *argv[])
+{
+ struct sockaddr_in sn;
+ socklen_t sz = sizeof(sn);
+ int do_debug=0, do_badpackets=0, ch;
+
+ /* make sure we're a daemon */
+ if (getsockname(0, (struct sockaddr *)&sn, &sz)) {
+ const char *msg = strerror(errno);
+ write(2, msg, strlen(msg));
+ exit(1);
+ }
+ openlog("talkd", LOG_PID, LOG_DAEMON);
+ if (gethostname(ourhostname, sizeof(ourhostname) - 1) < 0) {
+ syslog(LOG_ERR, "gethostname: %s", strerror(errno));
+ exit(1);
+ }
+ if (chdir(_PATH_DEV) < 0) {
+ syslog(LOG_ERR, "chdir: %s: %s", _PATH_DEV, strerror(errno));
+ exit(1);
+ }
+ while ((ch = getopt(argc, argv, "dp"))!=-1) {
+ switch (ch) {
+ case 'd': do_debug=1; break;
+ case 'p': do_badpackets=1; break;
+ }
+ }
+ set_debug(do_debug, do_badpackets);
+
+ signal(SIGALRM, timeout);
+ alarm(TIMEOUT);
+ for (;;) {
+ do_one_packet();
+ }
+/* return 0; <--- unreachable because of the above loop */
+}
Index: talkd
===================================================================
--- talkd (nonexistent)
+++ talkd (revision 5)
Property changes on: talkd
___________________________________________________________________
Added: svn:ignore
## -0,0 +1,73 ##
+
+# install dir
+dist
+
+# Target build dirs
+.a1x-newlib
+.a2x-newlib
+.at91sam7s-newlib
+
+.build-machine
+
+.a1x-glibc
+.a2x-glibc
+.h3-glibc
+.h5-glibc
+.i586-glibc
+.i686-glibc
+.imx6-glibc
+.jz47xx-glibc
+.makefile
+.am335x-glibc
+.omap543x-glibc
+.p5600-glibc
+.power8-glibc
+.power8le-glibc
+.power9-glibc
+.power9le-glibc
+.m1000-glibc
+.riscv64-glibc
+.rk328x-glibc
+.rk33xx-glibc
+.rk339x-glibc
+.s8xx-glibc
+.s9xx-glibc
+.x86_64-glibc
+
+# Hidden files (each file)
+.makefile
+.dist
+.rootfs
+
+# src & hw requires
+.src_requires
+.src_requires_depend
+.requires
+.requires_depend
+
+# Tarballs
+*.gz
+*.bz2
+*.lz
+*.xz
+*.tgz
+*.txz
+
+# Signatures
+*.asc
+*.sig
+*.sign
+*.sha1sum
+
+# Patches
+*.patch
+
+# Descriptions
+*.dsc
+*.txt
+
+# Default linux config files
+*.defconfig
+
+# backup copies
+*~
Index: .
===================================================================
--- . (nonexistent)
+++ . (revision 5)
Property changes on: .
___________________________________________________________________
Added: svn:ignore
## -0,0 +1,73 ##
+
+# install dir
+dist
+
+# Target build dirs
+.a1x-newlib
+.a2x-newlib
+.at91sam7s-newlib
+
+.build-machine
+
+.a1x-glibc
+.a2x-glibc
+.h3-glibc
+.h5-glibc
+.i586-glibc
+.i686-glibc
+.imx6-glibc
+.jz47xx-glibc
+.makefile
+.am335x-glibc
+.omap543x-glibc
+.p5600-glibc
+.power8-glibc
+.power8le-glibc
+.power9-glibc
+.power9le-glibc
+.m1000-glibc
+.riscv64-glibc
+.rk328x-glibc
+.rk33xx-glibc
+.rk339x-glibc
+.s8xx-glibc
+.s9xx-glibc
+.x86_64-glibc
+
+# Hidden files (each file)
+.makefile
+.dist
+.rootfs
+
+# src & hw requires
+.src_requires
+.src_requires_depend
+.requires
+.requires_depend
+
+# Tarballs
+*.gz
+*.bz2
+*.lz
+*.xz
+*.tgz
+*.txz
+
+# Signatures
+*.asc
+*.sig
+*.sign
+*.sha1sum
+
+# Patches
+*.patch
+
+# Descriptions
+*.dsc
+*.txt
+
+# Default linux config files
+*.defconfig
+
+# backup copies
+*~
Radix cross Linux
The main Radix cross Linux repository contains the build scripts of packages, which have the most complete and common functionality for desktop machines
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2 Branches
1 Tag