Created attachment 247524 [details] Patch file to fix -auth parsing in src/ssltools.h x11vnc fails with -auth argument as follows in x11vnc.log: 06/01/2024 23:12:29 passing arg to libvncserver: -rfbauth 06/01/2024 23:12:29 passing arg to libvncserver: /usr/home/dinolt/.vnc/passwd 06/01/2024 23:12:29 x11vnc version: 0.9.16 lastmod: 2019-01-05 pid: 1525 [: -a: unexpected operator [: -a: unexpected operator 06/01/2024 23:12:30 -auth guess: failed for display=':0' This fails with both FreeBSD13.2 p8 (and previous) and FreeBSD14 Stable on AMD64. I have not tried on other hardware or versions of the OS. The failure seems to be in the file src/ssltools.h in the parsing of the -auth arg where there is an extra space in the regular expression passed to the sed at line 1060. I have attached a patch file to be included in the files directory that seems to fix the problem.
Can you show full command line? For me with KDE5 this command line work fine: /usr/local/bin/x11vnc -env FD_XDM=1 -auth /var/run/sddm/* -dontdisconnect -display :0 -noxfixes -noxdamage -forever -rfbport 5900 -shared -rfbauth /usr/local/x11vnc/passwd -oa /var/log/x11vnc.log
I am running xfce4 The following command line fails for me: /usr/local/bin/x11vnc -env FD_XDM=1 -auth guess -reopen -rfbauth /usr/home/dinolt/.vnc/passwd -o /var/log/x11vnc.log -forever -bg which I use in Xsetup_0 from xdm.
After looking at it some more, it may be that the -auth guess is causing the problem. I think that in my case, since I am using "-auth guess" I am looking at the .Xauthority file for "authentication", not a file in /var/run/sddm/* . That directory doesn't exist in my environment.
Check this: https://github.com/LibVNC/x11vnc/issues/239 IMHO, it's better to report such bugs in the upstream too.
I will look into this.
A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/ports/commit/?id=3f8e2df713baa079cddbfc5f73dc782fe0aa1859 commit 3f8e2df713baa079cddbfc5f73dc782fe0aa1859 Author: Dirk Meyer <dinoex@FreeBSD.org> AuthorDate: 2024-01-08 09:56:38 +0000 Commit: Dirk Meyer <dinoex@FreeBSD.org> CommitDate: 2024-01-08 09:56:38 +0000 net/x11vnc: bugfix for -auth argument PR: 276194 net/x11vnc/Makefile | 2 +- net/x11vnc/files/patch-ssltools.h (new) | 11 +++++++++++ 2 files changed, 12 insertions(+), 1 deletion(-)