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x11vnc: -DENC_HAVE_OPENSSL=0 to disable enc.h but still

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have ssl. Tweak ps command in find_display. Try to handle
        AIX su. Ignore an initial newline at login: for -unixpw.
pull/1/head
runge 15 years ago
parent 10f325e276
commit 9659bc129f
7 changed files with 91 additions and 19 deletions
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5
x11vnc/ChangeLog
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@ -1,3 +1,8 @@
2009-12-21 Karl Runge <runge@karlrunge.com>
* x11vnc: -DENC_HAVE_OPENSSL=0 to disable enc.h but still
have ssl. Tweak ps command in find_display. Try to handle
AIX su. Ignore an initial newline at login: for -unixpw.
2009-12-18 Karl Runge <runge@karlrunge.com>
* x11vnc: fix keycode and other remote control actions under
DIRECT: with an extra XFlush and other safety measures.

15
x11vnc/README
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@ -2,7 +2,7 @@
Copyright (C) 2002-2009 Karl J. Runge <runge@karlrunge.com>
All rights reserved.
x11vnc README file Date: Fri Dec 18 22:19:55 EST 2009
x11vnc README file Date: Mon Dec 21 00:00:59 EST 2009
The following information is taken from these URLs:
@ -842,6 +842,15 @@ make
also want to make sure that /usr/lpp/X11/include, etc is being picked
up by the configure and make.
For a recent build on AIX 5.3 we needed to add these CFLAGS to be able
to build with gcc:
env CFLAGS='-maix64 -Xlinker -bbigtoc' ./configure ...
we also built our own libjpeg and libz using -maix64.
BTW, one way to run an Xvfb-like virtual X server for testing on AIX
is something like "/usr/bin/X11/X -force -vfb -ac :1".
Building on Mac OS X: There is now [112]native Mac OS X support for
x11vnc by using the raw framebuffer feature. This mode does not use or
@ -12905,7 +12914,7 @@ x11vnc: a VNC server for real X displays
Here are all of x11vnc command line options:
% x11vnc -opts (see below for -help long descriptions)
x11vnc: allow VNC connections to real X11 displays. 0.9.9 lastmod: 2009-12-18
x11vnc: allow VNC connections to real X11 displays. 0.9.9 lastmod: 2009-12-21
x11vnc options:
-display disp -auth file -N
@ -13032,7 +13041,7 @@ libvncserver-tight-extension options:
% x11vnc -help
x11vnc: allow VNC connections to real X11 displays. 0.9.9 lastmod: 2009-12-18
x11vnc: allow VNC connections to real X11 displays. 0.9.9 lastmod: 2009-12-21
(type "x11vnc -opts" to just list the options.)

10
x11vnc/sslhelper.c
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@ -2940,11 +2940,11 @@ if (db) fprintf(stderr, "tv_sec: %d - '%s'\n", (int) tv.tv_sec, last_get);
FD_ZERO(&rd);
FD_SET(s_in, &rd);
if (db) fprintf(stderr, "is_ssl_readable: begin select(%d secs) %.6f\n", tv.tv_sec, dnow());
if (db) fprintf(stderr, "is_ssl_readable: begin select(%d secs) %.6f\n", (int) tv.tv_sec, dnow());
do {
nfd = select(s_in+1, &rd, NULL, NULL, &tv);
} while (nfd < 0 && errno == EINTR);
if (db) fprintf(stderr, "is_ssl_readable: finish select(%d secs) %.6f\n", tv.tv_sec, dnow());
if (db) fprintf(stderr, "is_ssl_readable: finish select(%d secs) %.6f\n", (int) tv.tv_sec, dnow());
if (db) fprintf(stderr, "https nfd: %d\n", nfd);
@ -4081,12 +4081,18 @@ if (db) rfbLog("raw_xfer bad write: %d -> %d | %d/%d errno=%d\n", csock, s_out
#endif /* FORK_OK */
}
/* compile with -DENC_HAVE_OPENSSL=0 to disable enc stuff but still have ssl */
#define ENC_MODULE
#if LIBVNCSERVER_HAVE_LIBSSL
#ifndef ENC_HAVE_OPENSSL
#define ENC_HAVE_OPENSSL 1
#endif
#else
#define ENC_HAVE_OPENSSL 0
#endif
#include "enc.h"
static void symmetric_encryption_xfer(int csock, int s_in, int s_out) {

17
x11vnc/ssltools.h
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@ -893,14 +893,23 @@ char find_display[] =
"\n"
"# save uname, netstat, and ps output:\n"
"uname=`uname`\n"
"nsout=`netstat -an`\n"
"is_bsd=\"\"\n"
"if echo \"$uname\" | grep -i bsd > /dev/null; then\n"
" is_bsd=1\n"
"fi\n"
"\n"
"if [ \"X$uname\" = \"XDarwin\" ]; then\n"
" psout=`ps aux 2>/dev/null | grep -wv PID | grep -v grep`\n"
" pslist=`echo \"$psout\" | awk '{print $2}'`\n"
" psout=`ps aux 2>/dev/null | grep -wv PID | grep -v grep`\n"
"elif [ \"X$uname\" = \"XLinux\" -o \"X$is_bsd\" = \"X1\" ]; then\n"
" psout=`ps wwwaux 2>/dev/null | grep -wv PID | grep -v grep`\n"
"elif [ \"X$uname\" = \"XSunOS\" -a -x /usr/ucb/ps ]; then\n"
" psout=`/usr/ucb/ps wwwaux 2>/dev/null | grep -wv PID | grep -v grep`\n"
"else\n"
" psout=`ps -ef 2>/dev/null | grep -wv PID | grep -v grep`\n"
" pslist=`echo \"$psout\" | awk '{print $2}'`\n"
"fi\n"
"pslist=`echo \"$psout\" | awk '{print $2}'`\n"
"\n"
"nsout=`netstat -an`\n"
"\n"
"rchk() {\n"
" rr=rr \n"

59
x11vnc/unixpw.c
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@ -954,7 +954,7 @@ int su_verify(char *user, char *pass, char *cmd, char *rbuf, int *rbuf_size, int
pid_t pid, pidw;
struct stat sbuf;
static int first = 1;
char instr[32], cbuf[10];
char instr[64], cbuf[10];
if (first) {
set_db();
@ -1210,7 +1210,7 @@ int su_verify(char *user, char *pass, char *cmd, char *rbuf, int *rbuf_size, int
* auth sufficient pam_self.so
* it may be commented out without problem.
*/
for (i=0; i<32; i++) {
for (i=0; i<sizeof(instr); i++) {
instr[i] = '\0';
}
@ -1221,7 +1221,7 @@ int su_verify(char *user, char *pass, char *cmd, char *rbuf, int *rbuf_size, int
j = 0;
for (i=0; i < (int) strlen("Password:"); i++) {
char pstr[] = "password:";
int n;
int n, problem;
cbuf[0] = '\0';
cbuf[1] = '\0';
@ -1229,7 +1229,7 @@ int su_verify(char *user, char *pass, char *cmd, char *rbuf, int *rbuf_size, int
n = read(fd, cbuf, 1);
if (n < 0 && errno == EINTR) {
i--;
if (i < 0) i = 0;
if (i < -1) i = -1;
continue;
}
@ -1250,10 +1250,10 @@ int su_verify(char *user, char *pass, char *cmd, char *rbuf, int *rbuf_size, int
if (n == 1) {
if (isspace((unsigned char) cbuf[0])) {
i--;
if (i < 0) i = 0;
if (i < -1) i = -1;
continue;
}
if (j >= 32-1) {
if (j >= sizeof(instr)-1) {
rfbLog("su_verify: problem finding Password:\n");
fflush(stderr);
return 0;
@ -1261,7 +1261,42 @@ int su_verify(char *user, char *pass, char *cmd, char *rbuf, int *rbuf_size, int
instr[j++] = tolower((unsigned char)cbuf[0]);
}
if (n <= 0 || strstr(pstr, instr) != pstr) {
problem = 0;
if (n <= 0) {
problem = 1;
} else if (strstr(pstr, instr) != pstr) {
#ifdef _AIX
if (UT.sysname && strstr(UT.sysname, "AIX")) {
/* handle: runge's Password: */
char *luser = (char *) malloc(strlen(user) + 10);
sprintf(luser, "%s's", user);
lowercase(luser);
if (strstr(luser, instr) == luser) {
if (!strcmp(luser, instr)) {
i = -1;
j = 0;
memset(instr, 0, sizeof(instr));
free(luser);
continue;
} else {
i--;
if (i < -1) i = -1;
free(luser);
continue;
}
} else {
problem = 1;
}
free(luser);
} else
#endif
{
problem = 1;
}
}
if (problem) {
if (db) {
fprintf(stderr, "\"Password:\" did not "
@ -1571,7 +1606,7 @@ static void set_db(void) {
void unixpw_keystroke(rfbBool down, rfbKeySym keysym, int init) {
int x, y, i, rc, nmax = 100;
static char user_r[100], user[100], pass[100];
static int u_cnt = 0, p_cnt = 0, first = 1;
static int u_cnt = 0, p_cnt = 0, t_cnt = 0, first = 1;
static int echo = 1;
char keystr[100];
char *str;
@ -1601,6 +1636,7 @@ void unixpw_keystroke(rfbBool down, rfbKeySym keysym, int init) {
u_cnt = 0;
p_cnt = 0;
t_cnt = 0;
for (i=0; i<nmax; i++) {
user[i] = '\0';
pass[i] = '\0';
@ -1725,6 +1761,8 @@ void unixpw_keystroke(rfbBool down, rfbKeySym keysym, int init) {
return;
}
t_cnt++;
if (in_login) {
if (keysym == XK_BackSpace || keysym == XK_Delete) {
if (u_cnt > 0) {
@ -1768,6 +1806,11 @@ void unixpw_keystroke(rfbBool down, rfbKeySym keysym, int init) {
return;
}
if (t_cnt == 1) {
/* accidental initial return, e.g. from xterm */
return;
}
in_login = 0;
in_passwd = 1;

2
x11vnc/x11vnc.1
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@ -2,7 +2,7 @@
.TH X11VNC "1" "December 2009" "x11vnc " "User Commands"
.SH NAME
x11vnc - allow VNC connections to real X11 displays
version: 0.9.9, lastmod: 2009-12-18
version: 0.9.9, lastmod: 2009-12-21
.SH SYNOPSIS
.B x11vnc
[OPTION]...

2
x11vnc/x11vnc_defs.c
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@ -47,7 +47,7 @@ int xtrap_base_event_type = 0;
int xdamage_base_event_type = 0;
/* date +'lastmod: %Y-%m-%d' */
char lastmod[] = "0.9.9 lastmod: 2009-12-18";
char lastmod[] = "0.9.9 lastmod: 2009-12-21";
/* X display info */

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