URL:
<http://savannah.gnu.org/bugs/?func=detailitem&item_id=16738>
Summary: find does not subtract environment size from
ARG_MAX
Project: findutils
Submitted by: geoffclare
Submitted on: Friday 06/02/2006 at 16:52
Category: find
Severity: 3 - Normal
Item Group: Wrong result
Status: None
Privacy: Public
Assigned to: None
Originator Name: Geoff Clare
Originator Email:
Open/Closed: Open
Release: 4.2.27
Fixed Release: None
_______________________________________________________
Details:
In xargs.c there is the following code:
/* Take the size of the environment into account. */
if (size_of_environment > posix_arg_size_max)
{
bc_ctl.arg_max = 0;
env_too_big = 1;
}
else
{
bc_ctl.arg_max = posix_arg_size_max - size_of_environment;
}
The equivalent code is missing from find. This means that if
the environment passed to find is too large, it can produce
exec() errors when "{} +" is used:
$ env | wc -c
1953
$ find . -exec true {} +
$ FOO=$(printf '%1024s' x) env | wc -c
2982
$ FOO=$(printf '%1024s' x) find . -exec true {} +
find: true: Argument list too long
find: true: Argument list too long
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