octave crashes on exit if it has no write permissions on ~/.octave_hist

[John W. Eaton]

On 12-Jun-2009, bas at cordelia.zoetekouw.net wrote:

| To: bug at octave.org
| Cc: bas
| Subject: octave crashes on exit if it has no write permissions on ~/.octave_hist 
| 
| Bug report for Octave 3.1.53 configured for x86_64-pc-linux-gnu
| 
| Description:
| -----------
| 
|  * I accidentally had an ~/.octave_hist file that was owned by root and mode
|    0600.  Upon each (normal) exit, octave would crash.
| 
| Repeat-By:
| ---------
| 
|   > [bas at Eleanor]/tmp> ls -lad ~/.octave_hist 
|   > -rw------- 1 root root 0 feb 20 10:47 /home/bas/.octave_hist
|   > [bas at Eleanor]/tmp> echo 1+1 > test.m
|   > [bas at Eleanor]/tmp> octave -q test.m 
|   > ans =  2
|   > error: Permission denied
|   > terminate called after throwing an instance of 'octave_execution_exception'
|   > panic: Aborted -- stopping myself...
|   > attempting to save variables to `octave-core'...
|   > save to `octave-core' complete
|   > zsh: abort      octave -q test.m
|   > [bas at Eleanor](134)/tmp> octave -q
|   > octave:1> 1+1
|   > ans =  2
|   > octave:2> exit
|   > error: Permission denied
|   > octave:2> exit
|   > [bas at Eleanor]/tmp> sudo rm ~/.octave_hist 
|   > [bas at Eleanor]/tmp> octave -q test.m      
|   > ans =  2
|   > 
|   > [bas at Eleanor]/tmp> octave -q             
|   > octave:1> 1+1
|   > ans =  2
|   > octave:2> exit

I checked in the following change.

  http://hg.savannah.gnu.org/hgweb/octave/rev/deb668d53e60

Thanks,

jwe