sockd in CDN in a Box on RHEL 8: undefined symbol: _gethostbyaddr

[zrhoffman]

This Bug Report affects these Traffic Control components:

• CDN in a Box

What did you do?

Tried to run the CDN in a Box socksproxy service now that CDN in a Box is on RHEL 8:

docker-compose -f docker-compose.yml -f optional/docker-compose.socksproxy.yml up --build -d
docker-compose -f docker-compose.yml -f optional/docker-compose.socksproxy.yml logs -f socksproxy

What did you expect to happen?

sockd` runs

What actually happened?

The error you see when starting sockd:

$ sockd
Jul 14 16:26:03 (1689351963.686598) sockd[41]: error: symbolfunction(): compile time configuration error?  Failed to open library "libc.so": libc.so: cannot open shared object file: No such file or directory
Jul 14 16:26:03 (1689351963.686702) sockd[41]: alert: mother[1/1]: shutting down

and if you symlink libc.so.6 to libc.so like this,

ln -s libc.so.6 /lib64/libc.so

sockd instead gives this error:

$ sockd
Jul 14 16:28:35 (1689352115.892862) sockd[37]: error: symbolfunction(): compile time configuration error?  Failed to find "_gethostbyaddr" in "libc.so": /lib64/libc.so.6: undefined symbol: _gethostbyaddr
Jul 14 16:28:35 (1689352115.892971) sockd[37]: alert: mother[1/1]: shutting down

IIRC, CentOS 8 did not require symlinking libc.so to get the undefined symbol: _gethostbyaddr error.