Eric Andersen fd7a4c8c28 Jonas Holmberg from axis dot com writes: ... This patch makes msh handle variable expansion within backticks more correctly. Current behaviour (wrong): -------------------------- BusyBox v1.00-rc3 (2004.08.26-11:51+0000) Built-in shell (msh) Enter 'help' for a list of built-in commands. $ A='`echo hello`' $ echo $A `echo hello` $ echo `echo $A` hello $ New behaviour (correct): ------------------------ BusyBox v1.00-rc3 (2004.08.26-11:51+0000) Built-in shell (msh) Enter 'help' for a list of built-in commands. $ A='`echo hello`' $ echo $A `echo hello` $ echo `echo $A` `echo hello` $ The current behaviour (wrong according to standards) was actually my fault. msh handles backticks by executing a subshell (which makes it work on MMU-less systems). Executing a subshell makes it hard to only expand variables once in the parent. Therefore I export all variables that will be expanded within the backticks and let the subshell handle the expansion instead. The bug was found while searching for security leaks in CGI-scripts. Current behaviour of msh makes it easy to expand backticks by mistake in $QUERY_STRING. I recommend appling the patch before release of bb 1.00. /Jonas		2004-09-02 23:13:10 +00:00
..
ash.c	Patch from Vladimir N. Oleynik:	2004-08-19 18:22:13 +00:00
cmdedit.c	Patch from Vladimir N. Oleynik:	2004-08-19 18:22:13 +00:00
cmdedit.h	Vodz last_patch_122, Check $PATH at runtime to fix tab completion	2004-01-14 09:34:51 +00:00
Config.in	Patch from Bastian Blank:	2004-06-22 08:29:45 +00:00
hush.c	Larry Doolittle writes:	2004-04-14 17:51:38 +00:00
lash.c	Joe.C writes:	2004-08-16 08:38:34 +00:00
Makefile	Remove trailing whitespace. Update copyright to include 2004.	2004-03-15 08:29:22 +00:00
Makefile.in	Remove trailing whitespace. Update copyright to include 2004.	2004-03-15 08:29:22 +00:00
msh.c	Jonas Holmberg from axis dot com writes:	2004-09-02 23:13:10 +00:00