Segmentation fault in pj_insert_initcache

[apalade]

Segmentation fault happens when trying to create more than a certain number of projection definitions (on my platform this was 14 definitions).

I found the bug using the Perl interface, Geo::Proj4. Some platform details:

• 2.6.36-gentoo x86_64
• perl 5.12.2
• Geo::Proj4 0.99

Repro code here:

use strict;
use warnings;

use Geo::Proj4;

my @projections = qw( esri:37001 esri:37002 esri:37003 esri:37004 esri:37005 esri:37006 esri:37007 esri:37008 esri:37201 esri:37202 esri:37203 esri:37204 esri:37205 esri:37206 esri:37207 epsg:2045 epsg:2000 epsg:2094 epsg:2095 );

foreach ( @projections ) {
	Geo::Proj4->new( "+init=" . $_ );
}

The problem was caused by a faulty memcpy in pj_initcache.c which was happening when trying to enlarge the cache to hold more projections definitions. I've attached a patch that fixes the bug.

Cheers, Alexandru Palade

[apalade]

I forgot to mention... this bug manifests when instantiating definitions for different projections. You can instantiate any number of objects as long as they are all within the 15 projections or whatever your platform-specific number is.

[warmerdam]

I believe this is a duplicate of #100, and fixed by r1988.

[apalade]

My apologies. I checked the open tickets but didn't look at the resolved ones.