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ID |
Category |
Severity |
Reproducibility |
Date Submitted |
Last Update |
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0000826 |
[BusyBox] Other |
minor |
always |
04-11-06 01:38 |
06-28-06 06:51 |
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Reporter |
lionel |
View Status |
public |
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Assigned To |
BusyBox |
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Priority |
normal |
Resolution |
fixed |
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Status |
closed |
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Product Version |
1.1.x |
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Summary |
0000826: sed crashes when 'x' command run on an empty hold space |
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Description |
When executing the x command while the current hold space is empty, sed crashes.
To reproduce, just type the following command line:
[root@localhost busybox-1.1.1_new]# (echo;echo) | ./busybox sed -e x
Segmentation fault
On GNU sed:
bash-3.00$ (echo;echo) | sed -e x
This is due to a NULL pointer being exchanged between hold and pattern space and can be sorted out by allocating an empty string in the pattern space when x is issued and the hold space is empty.
I attach a short patch for this to work (this patch works for busybox-1.1.0 and busybox-1.1.1) |
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Additional Information |
This x command is used, for example, in the following sed script (used to number lines):
http://www.delorie.com/gnu/docs/sed/sed_20.html [^] |
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Attached Files |
 sed_x_command_on_empty_hold.patch [^] (595 bytes) 04-11-06 01:38 |
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