The csh-1.29.ebuild requires cvs access in order to build properly. This prevents the ebuild from building when the build system resides behind a proxy and firewall.
Yep, thats a limitation of the cvs.eclass. I'll update the ebuild to not use cvs. Expect an update soon.
csh-1.29-r1 fixes this issue: *csh-1.29-r1 (12 Jun 2003) 12 Jun 2003; Tavis Ormandy <taviso@gentoo.org> csh-1.29-r1.ebuild: no longer uses cvs.eclass to fetch sources (#22678). no longer dual license, generate list of signal names from `kill -l` output. informational messages tweak. produced binary will have better `kill` builtin (no more SIGJUNK fillers), so version bump. Thanks!