Error parsing arguments

[lameventanas]

I tested this with v2.3.0 and HEAD:

./sslh-select --verbose 1 --foreground --transparent --listen 0.0.0.0:443 --listen [::]:443 --tls 172.31.255.1:8443 --tls [fc00::1]:8443
resolve_split_name: Servname not supported for ai_socktype `172.31.25:.1:8'
cannot resolve 172.31.25:.1:8

With TRACE_CMPD, I get this:

./sslh-select --verbose 1 --foreground --transparent --listen 0.0.0.0:443 --listen [::]:443 --tls 172.31.255.1:8443 --tls [fc00::1]:8443
0103303000333001000151024`(null)'`(null)'`(null)'`auth'`(null)'`ssh'`'Compound listen occurs 2 : `0.0.0.0:443' matched
    match 1 rm_so 0 rm_eo 7 type 4
setting 0x5609532fd770+0 to : `0.0.0.0'
    match 2 rm_so 8 rm_eo 11 type 4
setting 0x5609532fd770+8 to : `443'
`[::]:443' matched
    match 1 rm_so 0 rm_eo 4 type 4
setting 0x560953301278+0 to : `[::]'
    match 2 rm_so 5 rm_eo 8 type 4
setting 0x560953301278+8 to : `443'
done listen
Compound ssh occurs 0 : done ssh
Compound tls occurs 2 : `172.31.255.1:8443' matched
    match 1 rm_so 0 rm_eo 12 type 4
setting 0x560953304d90+8 to : `172.31.255.1'
    match 2 rm_so 13 rm_eo 17 type 4
setting 0x560953304d90+16 to : `8443'
`[fc00::1]:8443' matched
    match 1 rm_so 0 rm_eo 9 type 4
setting 0x560953304d90+8 to : `172.31.25'
    match 2 rm_so 10 rm_eo 14 type 4
setting 0x560953304d90+16 to : `.1:8'
done tls
Compound ssl occurs 0 : done ssl
Compound openvpn occurs 0 : done openvpn
Compound tinc occurs 0 : done tinc
Compound wireguard occurs 0 : done wireguard
Compound xmpp occurs 0 : done xmpp
Compound http occurs 0 : done http
Compound adb occurs 0 : done adb
Compound socks5 occurs 0 : done socks5
Compound syslog occurs 0 : done syslog
Compound msrdp occurs 0 : done msrdp
Compound anyprot occurs 0 : done anyprot
resolve_split_name: Servname not supported for ai_socktype `172.31.25:.1:8'
cannot resolve 172.31.25:.1:8

[yrutschle]

The target protocol options are supposed to be unique, so you should only have one `--tls`, and what should happen when using it twice is that the second overrides the first (or at least, it should override the configuration file). I guess you're trying to say, "if it's IPv4, connect to 172.31.255.1, and if it's IPv6, connect to [fc00::1]". I think you should be able to get this to work by defining both addresses as a single name in /etc/hosts: ``` 172.31.255.1 mytarget fc00::1 mytarget ``` And then: ``` ./sslh-select --verbose 1 --foreground --transparent --listen 0.0.0.0:443 --listen [::]:443 --tls mytarget:8443 ``` I am not sure how easy it would be to add several targets from the command line, but I could look into it (although that would be low priority if there is a workaround :-) ).

…

On Sun, Nov 02, 2025 at 05:17:39AM -0800, Alan wrote: lameventanas created an issue (yrutschle/sslh#510) I tested this with v2.3.0 and HEAD: ``` ./sslh-select --verbose 1 --foreground --transparent --listen 0.0.0.0:443 --listen [::]:443 --tls 172.31.255.1:8443 --tls [fc00::1]:8443 resolve_split_name: Servname not supported for ai_socktype `172.31.25:.1:8' cannot resolve 172.31.25:.1:8 ``` With TRACE_CMPD, I get this: ``` ./sslh-select --verbose 1 --foreground --transparent --listen 0.0.0.0:443 --listen [::]:443 --tls 172.31.255.1:8443 --tls [fc00::1]:8443 0103303000333001000151024`(null)'`(null)'`(null)'`auth'`(null)'`ssh'`'Compound listen occurs 2 : `0.0.0.0:443' matched match 1 rm_so 0 rm_eo 7 type 4 setting 0x5609532fd770+0 to : `0.0.0.0' match 2 rm_so 8 rm_eo 11 type 4 setting 0x5609532fd770+8 to : `443' `[::]:443' matched match 1 rm_so 0 rm_eo 4 type 4 setting 0x560953301278+0 to : `[::]' match 2 rm_so 5 rm_eo 8 type 4 setting 0x560953301278+8 to : `443' done listen Compound ssh occurs 0 : done ssh Compound tls occurs 2 : `172.31.255.1:8443' matched match 1 rm_so 0 rm_eo 12 type 4 setting 0x560953304d90+8 to : `172.31.255.1' match 2 rm_so 13 rm_eo 17 type 4 setting 0x560953304d90+16 to : `8443' `[fc00::1]:8443' matched match 1 rm_so 0 rm_eo 9 type 4 setting 0x560953304d90+8 to : `172.31.25' match 2 rm_so 10 rm_eo 14 type 4 setting 0x560953304d90+16 to : `.1:8' done tls Compound ssl occurs 0 : done ssl Compound openvpn occurs 0 : done openvpn Compound tinc occurs 0 : done tinc Compound wireguard occurs 0 : done wireguard Compound xmpp occurs 0 : done xmpp Compound http occurs 0 : done http Compound adb occurs 0 : done adb Compound socks5 occurs 0 : done socks5 Compound syslog occurs 0 : done syslog Compound msrdp occurs 0 : done msrdp Compound anyprot occurs 0 : done anyprot resolve_split_name: Servname not supported for ai_socktype `172.31.25:.1:8' cannot resolve 172.31.25:.1:8 ``` -- Reply to this email directly or view it on GitHub: #510 You are receiving this because you are subscribed to this thread. Message ID: ***@***.***>

[lameventanas]

Thanks for the information.
I think most people will use a config file anyway, but this was quite confusing.
Also, it looks like this doesn't work in a config file:

protocols: (
{
  name: "tls";
  host: "172.31.255.1";
  port: "8443";
},
{
  name: "tls";
  host: "fc00::1";
  port: "8443";
}
);

Both IPv4 and IPv6 addresses must be added to /etc/hosts, or only one of them will work.

[yrutschle]

Yes the intention was for the targets to be unique, but the error you're getting is not normal (I would expect the second --tls to override the first one), so there must be something wrong in conf2struct. And there needs to be a better error message :-) Good to know that /etc/hosts works, at least there is a viable and easy workaround.

…

On Mon, Nov 03, 2025 at 06:52:09AM -0800, Alan wrote: lameventanas left a comment (yrutschle/sslh#510) Thanks for the information. I think most people will use a config file anyway, but this was quite confusing. Also, it looks like this doesn't work in a config file: ``` protocols: ( { name: "tls"; host: "172.31.255.1"; port: "8443"; }, { name: "tls"; host: "fc00::1"; port: "8443"; } ); ``` Both IPv4 and IPv6 addresses must be added to /etc/hosts, or only one of them will work. -- Reply to this email directly or view it on GitHub: #510 (comment) You are receiving this because you commented. Message ID: ***@***.***>