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authorEric Andersen2004-03-16 05:14:10 +0000
committerEric Andersen2004-03-16 05:14:10 +0000
commit16767e2377210fb7489ee4d7d79ad1850c7c932d (patch)
tree60d41b5ef57193173d1eecd747a0ddb3130e90ea /shell/Config.in
parentca65ca7d450ae6cbc0702e6b10925ccaef982bb4 (diff)
downloadbusybox-16767e2377210fb7489ee4d7d79ad1850c7c932d.zip
busybox-16767e2377210fb7489ee4d7d79ad1850c7c932d.tar.gz
Patch from vodz to fix the dynamic vars patch, which I should not
have checked in. Vladimir writes: Your patch have many problem. 1. You always added + time(). This cannot reset RANDOM=value for debuging with replay sequential. 2. Hmm. I examine bash 2.04 source. This pseudorandom generator use low bits of counter value. You use high bits. This make bad pseudorandom values after have 0-value. For example, if + time() do remove, your generator always return 0 after first generate 0. 3. Memory leak per call. Use ash-unlike unecessary bb_strdup function. 4. Unsupport show last $RANDOM value for "set" and "export" command. 5. Bloat code. Busybox-unlike patch - added unstandart feature as default hardcode. Last patch attached. Erik, why you apply Paul patch with have 5-th point problem? :( Last patch have ash change xwrite() to fresh libbb/bb_full_write interfase (haved loop after EINTR). --w vodz
Diffstat (limited to 'shell/Config.in')
-rw-r--r--shell/Config.in11
1 files changed, 11 insertions, 0 deletions
diff --git a/shell/Config.in b/shell/Config.in
index bcb5e71..34baaa4 100644
--- a/shell/Config.in
+++ b/shell/Config.in
@@ -97,6 +97,17 @@ config CONFIG_ASH_OPTIMIZE_FOR_SIZE
help
Compile ash for reduced size at price of speed.
+config CONFIG_ASH_RANDOM_SUPPORT
+ bool " Enable pseudorandom generator and variable $RANDOM"
+ default n
+ depends on CONFIG_ASH
+ help
+ Enable pseudorandom generator and dynamic variable "$RANDOM".
+ Each read of "$RANDOM" will generate a new pseudorandom value.
+ You can reset the generator by using a specified start value.
+ After "unset RANDOM" then generator will switch off and this
+ variable will no longer have special treatment.
+
config CONFIG_HUSH
bool "hush"
default n