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Comparing rxvt-unicode/doc/rxvt.7.pod (file contents):
Revision 1.86 by root, Mon Jan 16 17:24:29 2006 UTC vs.
Revision 1.88 by root, Wed Jan 18 17:49:46 2006 UTC

… …
194C<--enable-everything> (less useful, it will be very big due to a lot of 194C<--enable-everything> (less useful, it will be very big due to a lot of
195encodings built-in that increase download times and are rarely used). 195encodings built-in that increase download times and are rarely used).
196 196
197=item I need to make it setuid/setgid to support utmp/ptys on my OS, is this safe? 197=item I need to make it setuid/setgid to support utmp/ptys on my OS, is this safe?
198 198
199Likely not. While I honestly try to make it secure, and am probably not 199It should be, starting with release 7.1. You are encouraged to properly
200bad at it, I think it is simply unreasonable to expect all of freetype 200install urxvt with privileges necessary for your OS now.
201+ fontconfig + xft + xlib + perl + ... + rxvt-unicode itself to all be
202secure. Also, rxvt-unicode disables some options when it detects that it
203runs setuid or setgid, which is not nice. Besides, with the embedded perl
204interpreter the possibility for security problems easily multiplies.
205 201
206Elevated privileges are only required for utmp and pty operations on some 202When rxvt-unicode detects that it runs setuid or setgid, it will fork
207systems (for example, GNU/Linux doesn't need any extra privileges for 203into a helper process for privileged operations (pty handling on some
208ptys, but some need it for utmp support). It is planned to mvoe this into 204systems, utmp/wtmp/lastlog handling on others) and drop privileges
209a forked handler process, but this is not yet done. 205immediately. This is much safer than most other terminals that keep
206privileges while running (but is more relevant to urxvt, as it contains
207things as perl interpreters, which might be "helpful" to attackers).
210 208
211So, while setuid/setgid operation is supported and not a problem on your 209This forking is done as the very first within main(), which is very early
212typical single-user-no-other-logins unix desktop, always remember that 210and reduces possible bugs to initialisation code run before main(), or
213its an awful lot of code, most of which isn't checked for security issues 211things like the dynamic loader of your system, which should result in very
214regularly. 212little risk.
215 213
216=item When I log-in to another system it tells me about missing terminfo data? 214=item When I log-in to another system it tells me about missing terminfo data?
217 215
218The terminal description used by rxvt-unicode is not as widely available 216The terminal description used by rxvt-unicode is not as widely available
219as that for xterm, or even rxvt (for which the same problem often arises). 217as that for xterm, or even rxvt (for which the same problem often arises).
… …
1669 B<< C<Ps = 12> >> Change colour of text cursor foreground to B<< C<Pt> >> 1667 B<< C<Ps = 12> >> Change colour of text cursor foreground to B<< C<Pt> >>
1670 B<< C<Ps = 13> >> Change colour of mouse foreground to B<< C<Pt> >> 1668 B<< C<Ps = 13> >> Change colour of mouse foreground to B<< C<Pt> >>
1671 B<< C<Ps = 17> >> Change colour of highlight characters to B<< C<Pt> >> 1669 B<< C<Ps = 17> >> Change colour of highlight characters to B<< C<Pt> >>
1672 B<< C<Ps = 18> >> Change colour of bold characters to B<< C<Pt> >> [deprecated, see 706] 1670 B<< C<Ps = 18> >> Change colour of bold characters to B<< C<Pt> >> [deprecated, see 706]
1673 B<< C<Ps = 19> >> Change colour of underlined characters to B<< C<Pt> >> [deprecated, see 707] 1671 B<< C<Ps = 19> >> Change colour of underlined characters to B<< C<Pt> >> [deprecated, see 707]
1674 B<< C<Ps = 20> >> Change default background to B<< C<Pt> >> 1672 B<< C<Ps = 20> >> Change background pixmap parameters (see section XPM) (Compile XPM).
1675 B<< C<Ps = 39> >> Change default foreground colour to B<< C<Pt> >>. 1673 B<< C<Ps = 39> >> Change default foreground colour to B<< C<Pt> >>.
1676 B<< C<Ps = 46> >> Change Log File to B<< C<Pt> >> I<unimplemented> 1674 B<< C<Ps = 46> >> Change Log File to B<< C<Pt> >> I<unimplemented>
1677 B<< C<Ps = 49> >> Change default background colour to B<< C<Pt> >>. 1675 B<< C<Ps = 49> >> Change default background colour to B<< C<Pt> >>.
1678 B<< C<Ps = 50> >> Set fontset to B<< C<Pt> >>, with the following special values of B<< C<Pt> >> (B<rxvt>) B<< C<#+n> >> change up B<< C<n> >> B<< C<#-n> >> change down B<< C<n> >> if B<< C<n> >> is missing of 0, a value of 1 is used I<empty> change to font0 B<< C<n> >> change to font B<< C<n> >> 1676 B<< C<Ps = 50> >> Set fontset to B<< C<Pt> >>, with the following special values of B<< C<Pt> >> (B<rxvt>) B<< C<#+n> >> change up B<< C<n> >> B<< C<#-n> >> change down B<< C<n> >> if B<< C<n> >> is missing of 0, a value of 1 is used I<empty> change to font0 B<< C<n> >> change to font B<< C<n> >>
1679 B<< C<Ps = 55> >> Log all scrollback buffer and all of screen to B<< C<Pt> >> 1677 B<< C<Ps = 55> >> Log all scrollback buffer and all of screen to B<< C<Pt> >>

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