* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root @ 2019-07-10 20:20 Steinar Bang 2019-07-10 20:50 ` Glenn Morris 0 siblings, 1 reply; 23+ messages in thread From: Steinar Bang @ 2019-07-10 20:20 UTC (permalink / raw) To: 36583 debian 10 "buster", amd64 GNU Emacs 26.1 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.4) of 2019-02-03, modified by Debian - I did /bin/su from my own user to root - When I started emacs I got the following error message: Warning (initialization): An error occurred while loading ‘/home/sb/.emacs’: File is missing: Cannot open load file, No such file or directory, editorconfig To ensure normal operation, you should investigate and remove the cause of the error in your initialization file. Start Emacs with the ‘--debug-init’ option to view a complete error backtrace. - Ie. emacs tried to load the original user's .emacs and fails (and the configuration of the editor is kind of broken) Results of HOME and id after su: root@cadalora:~# env | grep HOME HOME=/root root@cadalora:~# id uid=0(root) gid=0(root) groups=0(root) root@cadalora:~# - When I do "/bin/su - root" then emacs reports no error messages on startup Results of HOME and id looks the same: root@cadalora:~# env | grep HOME HOME=/root root@cadalora:~# id uid=0(root) gid=0(root) groups=0(root) root@cadalora:~# ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-10 20:20 bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root Steinar Bang @ 2019-07-10 20:50 ` Glenn Morris 2019-07-11 22:58 ` Stefan Monnier 0 siblings, 1 reply; 23+ messages in thread From: Glenn Morris @ 2019-07-10 20:50 UTC (permalink / raw) To: Steinar Bang; +Cc: 36583 This is explicitly documented in the manual. "How Emacs Finds Your Init File". ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-10 20:50 ` Glenn Morris @ 2019-07-11 22:58 ` Stefan Monnier 2019-07-11 23:17 ` Lars Ingebrigtsen 2019-07-12 6:37 ` Eli Zaretskii 0 siblings, 2 replies; 23+ messages in thread From: Stefan Monnier @ 2019-07-11 22:58 UTC (permalink / raw) To: Glenn Morris; +Cc: Steinar Bang, 36583 > This is explicitly documented in the manual. > "How Emacs Finds Your Init File". FWIW, I find this behavior very surprising (and dangerous). Apparently you can circumvent it by setting LOGNAME to "root". I can't find the place in code which distinguishes this case from the case where the user doesn't `su` but instead sets his $HOME to some other place, such as: HOME=/home/monnier/tmp/home emacs BTW, thinking about "dangerous" above, I guess the behavior might make sense when you're `su`ing *from* root rather than the other way around. Stefan ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-11 22:58 ` Stefan Monnier @ 2019-07-11 23:17 ` Lars Ingebrigtsen 2019-07-12 0:38 ` Stefan Monnier 2019-07-12 23:39 ` Richard Stallman 2019-07-12 6:37 ` Eli Zaretskii 1 sibling, 2 replies; 23+ messages in thread From: Lars Ingebrigtsen @ 2019-07-11 23:17 UTC (permalink / raw) To: Stefan Monnier; +Cc: Steinar Bang, 36583 Stefan Monnier <monnier@iro.umontreal.ca> writes: > FWIW, I find this behavior very surprising (and dangerous). Yes, me too. I can't think of any other program that behaves in this manner. > BTW, thinking about "dangerous" above, I guess the behavior might make > sense when you're `su`ing *from* root rather than the other way around. By default, /root on many systems isn't readable by anybody but root, so I don't think it makes much sense in any situation... I think Emacs shouldn't do this at all. When was this introduced, and what was the reasoning behind it? -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-11 23:17 ` Lars Ingebrigtsen @ 2019-07-12 0:38 ` Stefan Monnier 2019-07-12 14:34 ` Lars Ingebrigtsen 2019-07-12 23:39 ` Richard Stallman 1 sibling, 1 reply; 23+ messages in thread From: Stefan Monnier @ 2019-07-12 0:38 UTC (permalink / raw) To: Lars Ingebrigtsen; +Cc: Steinar Bang, 36583 >> BTW, thinking about "dangerous" above, I guess the behavior might make >> sense when you're `su`ing *from* root rather than the other way around. > By default, /root on many systems isn't readable by anybody but root, so > I don't think it makes much sense in any situation... Good point. > I think Emacs shouldn't do this at all. When was this introduced, and > what was the reasoning behind it? The Texinfo says: [...] @xref{Entering Emacs,,, emacs, The GNU Emacs Manual}. If neither option is specified, Emacs uses the @env{LOGNAME} environment variable, or the @env{USER} (most systems) or @env{USERNAME} (MS systems) variable, to find your home directory and thus your init file; this way, even if you have su'd, Emacs still loads your own init file. If those environment variables are absent, though, Emacs uses your user-id to find your home directory. and it's at least as old as 2007 probably long before. I still haven't found the corresponding code, so I can't confirm the origin. [...hhhmmm...] Ha! Found it! commit a726e0d12ccb1c49ca1f3e1fbe64addea9b7d3b4 Author: Jim Blandy <jimb@redhat.com> Date: Thu Jul 11 23:17:40 1991 +0000 Initial revision diff --git a/lisp/startup.el b/lisp/startup.el --- /dev/null +++ b/lisp/startup.el @@ -0,0 +160,6 @@ + ;; Figure out which user's init file to load, + ;; either from the environment or from the options. + (setq init-file-user (if noninteractive nil (user-login-name))) + ;; If user has not done su, use current $HOME to find .emacs. + (and init-file-user (string= init-file-user (user-real-login-name)) + (setq init-file-user "")) So yes, goes back pretty far. Stefan ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-12 0:38 ` Stefan Monnier @ 2019-07-12 14:34 ` Lars Ingebrigtsen 0 siblings, 0 replies; 23+ messages in thread From: Lars Ingebrigtsen @ 2019-07-12 14:34 UTC (permalink / raw) To: Stefan Monnier; +Cc: Steinar Bang, 36583 Stefan Monnier <monnier@iro.umontreal.ca> writes: > [...hhhmmm...] Ha! Found it! > > commit a726e0d12ccb1c49ca1f3e1fbe64addea9b7d3b4 > Author: Jim Blandy <jimb@redhat.com> > Date: Thu Jul 11 23:17:40 1991 +0000 > > Initial revision > > diff --git a/lisp/startup.el b/lisp/startup.el > --- /dev/null > +++ b/lisp/startup.el > @@ -0,0 +160,6 @@ > + ;; Figure out which user's init file to load, > + ;; either from the environment or from the options. > + (setq init-file-user (if noninteractive nil (user-login-name))) > + ;; If user has not done su, use current $HOME to find .emacs. > + (and init-file-user (string= init-file-user (user-real-login-name)) > + (setq init-file-user "")) > > So yes, goes back pretty far. Oh, wow. :-) There was a similar bug report for "sudo" the other week where the conclusion was "well, just use -i" (because then $HOME would be set correctly). Does this mean that su and sudo behaves differently in Emacs in this area? Let's see... sudo -i: root@sandy:~# echo $HOME /root (user-real-login-name) "root" sudo bash: root@sandy:~# echo $HOME /home/larsi (user-real-login-name) "root" [larsi@stories ~]$ su Password: root@stories:/home/larsi# echo $HOME /root (user-real-login-name) "root" Uhm... So when I su on this machine, I'm not getting /home/larsi/.emacs? This is kinda confusing. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-11 23:17 ` Lars Ingebrigtsen 2019-07-12 0:38 ` Stefan Monnier @ 2019-07-12 23:39 ` Richard Stallman 2019-07-13 9:21 ` Andreas Schwab ` (2 more replies) 1 sibling, 3 replies; 23+ messages in thread From: Richard Stallman @ 2019-07-12 23:39 UTC (permalink / raw) To: Lars Ingebrigtsen; +Cc: sb, 36583, monnier [[[ To any NSA and FBI agents reading my email: please consider ]]] [[[ whether defending the US Constitution against all enemies, ]]] [[[ foreign or domestic, requires you to follow Snowden's example. ]]] I think I asked for this feature so that when I run Emacs as root I will get the commands I am accustomed to. -- Dr Richard Stallman President, Free Software Foundation (https://gnu.org, https://fsf.org) Internet Hall-of-Famer (https://internethalloffame.org) ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-12 23:39 ` Richard Stallman @ 2019-07-13 9:21 ` Andreas Schwab 2019-07-13 9:34 ` Stefan Kangas 2019-07-13 23:02 ` Richard Stallman 2019-07-13 13:09 ` Stefan Monnier 2019-07-23 13:53 ` Steinar Bang 2 siblings, 2 replies; 23+ messages in thread From: Andreas Schwab @ 2019-07-13 9:21 UTC (permalink / raw) To: Richard Stallman; +Cc: sb, Lars Ingebrigtsen, 36583, monnier On Jul 12 2019, Richard Stallman <rms@gnu.org> wrote: > I think I asked for this feature so that when I run Emacs as root I > will get the commands I am accustomed to. Nowadays this is perhaps obsoleted by Tramp. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different." ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-13 9:21 ` Andreas Schwab @ 2019-07-13 9:34 ` Stefan Kangas 2019-07-13 23:02 ` Richard Stallman 1 sibling, 0 replies; 23+ messages in thread From: Stefan Kangas @ 2019-07-13 9:34 UTC (permalink / raw) To: Andreas Schwab Cc: sb, Lars Ingebrigtsen, 36583, Richard Stallman, Stefan Monnier Andreas Schwab <schwab@linux-m68k.org> writes: > On Jul 12 2019, Richard Stallman <rms@gnu.org> wrote: > > > I think I asked for this feature so that when I run Emacs as root I > > will get the commands I am accustomed to. > > Nowadays this is perhaps obsoleted by Tramp. Tramp covers this use case for me at least. FWIW, I think we should remove this feature. It has always surprised me since it's so different from how other programs on GNU/Linux usually behaves. Would it be a good idea to also add something to the FAQ or Manual on the recommended way to edit files as root (which perhaps should be: use Tramp)? Thanks, Stefan Kangas ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-13 9:21 ` Andreas Schwab 2019-07-13 9:34 ` Stefan Kangas @ 2019-07-13 23:02 ` Richard Stallman 2019-07-13 23:16 ` Andreas Schwab 1 sibling, 1 reply; 23+ messages in thread From: Richard Stallman @ 2019-07-13 23:02 UTC (permalink / raw) To: Andreas Schwab; +Cc: sb, larsi, 36583, monnier [[[ To any NSA and FBI agents reading my email: please consider ]]] [[[ whether defending the US Constitution against all enemies, ]]] [[[ foreign or domestic, requires you to follow Snowden's example. ]]] > > I think I asked for this feature so that when I run Emacs as root I > > will get the commands I am accustomed to. > Nowadays this is perhaps obsoleted by Tramp. Sorry, I don't follow you. I don't see how there is any relationship between this .emacs veature and Tramp. -- Dr Richard Stallman President, Free Software Foundation (https://gnu.org, https://fsf.org) Internet Hall-of-Famer (https://internethalloffame.org) ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-13 23:02 ` Richard Stallman @ 2019-07-13 23:16 ` Andreas Schwab 0 siblings, 0 replies; 23+ messages in thread From: Andreas Schwab @ 2019-07-13 23:16 UTC (permalink / raw) To: Richard Stallman; +Cc: sb, larsi, 36583, monnier On Jul 13 2019, Richard Stallman <rms@gnu.org> wrote: > Sorry, I don't follow you. I don't see how there is any relationship > between this .emacs veature and Tramp. Tramp implements su in emacs. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different." ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-12 23:39 ` Richard Stallman 2019-07-13 9:21 ` Andreas Schwab @ 2019-07-13 13:09 ` Stefan Monnier 2019-07-13 23:05 ` Richard Stallman 2019-07-23 13:53 ` Steinar Bang 2 siblings, 1 reply; 23+ messages in thread From: Stefan Monnier @ 2019-07-13 13:09 UTC (permalink / raw) To: Richard Stallman; +Cc: sb, Lars Ingebrigtsen, 36583 > I think I asked for this feature so that when I run Emacs as root I > will get the commands I am accustomed to. I can see why you'd like that, but I think this should be the result of an explicit choice rather than the default behavior. Stefan ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-13 13:09 ` Stefan Monnier @ 2019-07-13 23:05 ` Richard Stallman 2019-07-15 12:49 ` Stefan Monnier 0 siblings, 1 reply; 23+ messages in thread From: Richard Stallman @ 2019-07-13 23:05 UTC (permalink / raw) To: Stefan Monnier; +Cc: sb, larsi, 36583 [[[ To any NSA and FBI agents reading my email: please consider ]]] [[[ whether defending the US Constitution against all enemies, ]]] [[[ foreign or domestic, requires you to follow Snowden's example. ]]] > I can see why you'd like that, but I think this should be the result of > an explicit choice rather than the default behavior. How do you suggest a user indicate that choice? -- Dr Richard Stallman President, Free Software Foundation (https://gnu.org, https://fsf.org) Internet Hall-of-Famer (https://internethalloffame.org) ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-13 23:05 ` Richard Stallman @ 2019-07-15 12:49 ` Stefan Monnier 2019-07-15 13:04 ` Noam Postavsky 0 siblings, 1 reply; 23+ messages in thread From: Stefan Monnier @ 2019-07-15 12:49 UTC (permalink / raw) To: Richard Stallman; +Cc: sb, larsi, 36583 > > I can see why you'd like that, but I think this should be the result of > > an explicit choice rather than the default behavior. > > How do you suggest a user indicate that choice? Don't know. How 'bout let the /root/.emacs file do something like: (load (concat "~" (user-login-name) "/.emacs")) ? For convenience, we could provide an ad-hoc function that would do that "right" (i.e. looking for .emacs, .emacs.d/init.el, and things like that). We could even put it in /root/.emacs.d/early-init.el. Stefan ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-15 12:49 ` Stefan Monnier @ 2019-07-15 13:04 ` Noam Postavsky 2019-07-15 14:42 ` Stefan Monnier 0 siblings, 1 reply; 23+ messages in thread From: Noam Postavsky @ 2019-07-15 13:04 UTC (permalink / raw) To: Stefan Monnier; +Cc: 36583, larsi, sb, Richard Stallman Stefan Monnier <monnier@iro.umontreal.ca> writes: > How 'bout let the /root/.emacs file do something like: > > (load (concat "~" (user-login-name) "/.emacs")) > > ? > For convenience, we could provide an ad-hoc function that would do that > "right" (i.e. looking for .emacs, .emacs.d/init.el, and things like > that). We could even put it in /root/.emacs.d/early-init.el. Wouldn't it be simpler to do this in the shell, e.g., cat >>/root/.bashrc <<'EOF' alias emacs='emacs -u "$LOGNAME"' EOF although I would personally suggest cat >>/root/.bashrc <<'EOF' alias emacs='echo Do not run emacs as root' EOF ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-15 13:04 ` Noam Postavsky @ 2019-07-15 14:42 ` Stefan Monnier 0 siblings, 0 replies; 23+ messages in thread From: Stefan Monnier @ 2019-07-15 14:42 UTC (permalink / raw) To: Noam Postavsky; +Cc: 36583, larsi, sb, Richard Stallman > Wouldn't it be simpler to do this in the shell, e.g., > > cat >>/root/.bashrc <<'EOF' > alias emacs='emacs -u "$LOGNAME"' > EOF > > although I would personally suggest > > cat >>/root/.bashrc <<'EOF' > alias emacs='echo Do not run emacs as root' > EOF Yes, there are various ways to skin this cat. Stefan ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-12 23:39 ` Richard Stallman 2019-07-13 9:21 ` Andreas Schwab 2019-07-13 13:09 ` Stefan Monnier @ 2019-07-23 13:53 ` Steinar Bang 2019-07-23 14:30 ` Stefan Monnier 2 siblings, 1 reply; 23+ messages in thread From: Steinar Bang @ 2019-07-23 13:53 UTC (permalink / raw) To: Richard Stallman; +Cc: Lars Ingebrigtsen, 36583, monnier >>>>> Richard Stallman <rms@gnu.org>: > I think I asked for this feature so that when I run Emacs as root I > will get the commands I am accustomed to. FWIW What broke things for me, was that it reads the .emacs file from /home/sb directory, but it doesn't read /home/sb/.emacs.d/elpa/ and therefore doesn't find the packages my .emacs refers to, so that startup breaks in the middle of the setup and nothing works as expected. If it had used my regular config fully, I never would have noticed. The root user has a functional .emacs, but a much slimmer one. I've basically customized away the behaviour I dislike. Either .emacs (ie. /home/sb/.emacs or /root/.emacs) would have worked for me if they could have run without failing. (PS sorry for coming late to the discussion I originated. My incoming email broke as a result of an openssl change in a debian version upgrade and I haven't received email since July 11 until today, and didn't receive the initial debbug response. And sorry if I came through as rude on emacs-help) ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-23 13:53 ` Steinar Bang @ 2019-07-23 14:30 ` Stefan Monnier 2019-08-04 10:57 ` Steinar Bang 0 siblings, 1 reply; 23+ messages in thread From: Stefan Monnier @ 2019-07-23 14:30 UTC (permalink / raw) To: Steinar Bang; +Cc: Lars Ingebrigtsen, 36583, Richard Stallman > FWIW What broke things for me, was that it reads the .emacs file from > /home/sb directory, but it doesn't read /home/sb/.emacs.d/elpa/ and > therefore doesn't find the packages my .emacs refers to, so that startup > breaks in the middle of the setup and nothing works as expected. Indeed, as a first-approximation, it uses "~$LOGNAME/.emacs" but "$HOME/.emacs.d/elpa/". In many circumstances "~$LOGNAME/" is the same as "$HOME/", and in yet other circumstances Emacs uses "$HOME/.emacs" (which I find very handy) rather than "~$LOGNAME/.emacs". I'd rather we drop this special case of using "~$LOGNAME/.emacs" when we decide that we're in "su". I know it's long standing behavior, but there are many other ways for the user to get the same result, so I think we can get rid of this dangerous quirk. Stefan ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-23 14:30 ` Stefan Monnier @ 2019-08-04 10:57 ` Steinar Bang 0 siblings, 0 replies; 23+ messages in thread From: Steinar Bang @ 2019-08-04 10:57 UTC (permalink / raw) To: Stefan Monnier; +Cc: Lars Ingebrigtsen, 36583, Richard Stallman Another breakage discovered today: it's impossible to do X forwarding with an unbroken emacs configuration. If you do: - ssh -Y someserver - /bin/su - root then the DISPLAY variable set by "ssh -Y" is lost and it's impossible to do X forwarding. Doing just "/bin/su" (which I used to do before the last debian upgrade) gives me a broken emacs configuration (because ~sb/.emacs is used but ELPA packages under ~sb/.emacs.d/ are not used). (And as Lars has pointed out elsewhere in this thread: the emacs configuration of root should be tighter and more security conscious than the configuration of a regular user. So just including the .emacs.d/ of the original user may not be the appropriate fix) ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-11 22:58 ` Stefan Monnier 2019-07-11 23:17 ` Lars Ingebrigtsen @ 2019-07-12 6:37 ` Eli Zaretskii 2019-07-12 14:46 ` Stefan Monnier 1 sibling, 1 reply; 23+ messages in thread From: Eli Zaretskii @ 2019-07-12 6:37 UTC (permalink / raw) To: Stefan Monnier; +Cc: sb, 36583 > From: Stefan Monnier <monnier@iro.umontreal.ca> > Date: Thu, 11 Jul 2019 18:58:40 -0400 > Cc: Steinar Bang <sb@dod.no>, 36583@debbugs.gnu.org > > > This is explicitly documented in the manual. > > "How Emacs Finds Your Init File". > > FWIW, I find this behavior very surprising (and dangerous). Why is it dangerous? ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-12 6:37 ` Eli Zaretskii @ 2019-07-12 14:46 ` Stefan Monnier 2019-07-12 14:53 ` Eli Zaretskii 0 siblings, 1 reply; 23+ messages in thread From: Stefan Monnier @ 2019-07-12 14:46 UTC (permalink / raw) To: Eli Zaretskii; +Cc: sb, 36583 >> > This is explicitly documented in the manual. >> > "How Emacs Finds Your Init File". >> FWIW, I find this behavior very surprising (and dangerous). > Why is it dangerous? Because it'll run with full admin privileges the user's ~/.emacs which was likely not written under the assumption that you have to be very careful not to mess up the whole system. Stefan ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-12 14:46 ` Stefan Monnier @ 2019-07-12 14:53 ` Eli Zaretskii 2019-07-12 15:00 ` Lars Ingebrigtsen 0 siblings, 1 reply; 23+ messages in thread From: Eli Zaretskii @ 2019-07-12 14:53 UTC (permalink / raw) To: Stefan Monnier; +Cc: sb, 36583 > From: Stefan Monnier <monnier@iro.umontreal.ca> > Cc: rgm@gnu.org, sb@dod.no, 36583@debbugs.gnu.org > Date: Fri, 12 Jul 2019 10:46:13 -0400 > > >> > This is explicitly documented in the manual. > >> > "How Emacs Finds Your Init File". > >> FWIW, I find this behavior very surprising (and dangerous). > > Why is it dangerous? > > Because it'll run with full admin privileges the user's ~/.emacs which > was likely not written under the assumption that you have to be very > careful not to mess up the whole system. Isn't that what 'su' is supposed to allow? ^ permalink raw reply [flat|nested] 23+ messages in thread
* bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root 2019-07-12 14:53 ` Eli Zaretskii @ 2019-07-12 15:00 ` Lars Ingebrigtsen 0 siblings, 0 replies; 23+ messages in thread From: Lars Ingebrigtsen @ 2019-07-12 15:00 UTC (permalink / raw) To: Eli Zaretskii; +Cc: sb, 36583, Stefan Monnier Eli Zaretskii <eliz@gnu.org> writes: >> Because it'll run with full admin privileges the user's ~/.emacs which >> was likely not written under the assumption that you have to be very >> careful not to mess up the whole system. > > Isn't that what 'su' is supposed to allow? Under su you can run any command -- that's true. But it's unexpected to have a program run this code as root. At least, it's not what I would expect, and I have not written the code in /home/larsi/.emacs under the assumption that is has to be safe for root to run. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no ^ permalink raw reply [flat|nested] 23+ messages in thread
end of thread, other threads:[~2019-08-04 10:57 UTC | newest] Thread overview: 23+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2019-07-10 20:20 bug#36583: 26.1; emacs 26 tries loading original user's .emacs after su to root Steinar Bang 2019-07-10 20:50 ` Glenn Morris 2019-07-11 22:58 ` Stefan Monnier 2019-07-11 23:17 ` Lars Ingebrigtsen 2019-07-12 0:38 ` Stefan Monnier 2019-07-12 14:34 ` Lars Ingebrigtsen 2019-07-12 23:39 ` Richard Stallman 2019-07-13 9:21 ` Andreas Schwab 2019-07-13 9:34 ` Stefan Kangas 2019-07-13 23:02 ` Richard Stallman 2019-07-13 23:16 ` Andreas Schwab 2019-07-13 13:09 ` Stefan Monnier 2019-07-13 23:05 ` Richard Stallman 2019-07-15 12:49 ` Stefan Monnier 2019-07-15 13:04 ` Noam Postavsky 2019-07-15 14:42 ` Stefan Monnier 2019-07-23 13:53 ` Steinar Bang 2019-07-23 14:30 ` Stefan Monnier 2019-08-04 10:57 ` Steinar Bang 2019-07-12 6:37 ` Eli Zaretskii 2019-07-12 14:46 ` Stefan Monnier 2019-07-12 14:53 ` Eli Zaretskii 2019-07-12 15:00 ` Lars Ingebrigtsen
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