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| author | Jelmer Vernooij <jelmer@samba.org> | 2006-04-26 00:08:39 +0000 |
|---|---|---|
| committer | Gerald (Jerry) Carter <jerry@samba.org> | 2007-10-10 14:04:27 -0500 |
| commit | 0263ec1c894c46a479b472d65dc5f3ce48c57673 (patch) | |
| tree | 52821da85d787b7b227d832e75f8ab13414f09e9 /source4/pidl/lib/Parse | |
| parent | 7a9076cba2de14b4cd82207efb81950639a2f266 (diff) | |
| download | samba-0263ec1c894c46a479b472d65dc5f3ce48c57673.tar.gz samba-0263ec1c894c46a479b472d65dc5f3ce48c57673.tar.bz2 samba-0263ec1c894c46a479b472d65dc5f3ce48c57673.zip | |
r15260: Don't dereference NULL pointers to obtain array lengths - found by
the IBM checker
(This used to be commit a492cd4bd49b6922d91d4ce5f1247bad0d0d6a7e)
Diffstat (limited to 'source4/pidl/lib/Parse')
| -rw-r--r-- | source4/pidl/lib/Parse/Pidl/Samba4/EJS.pm | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/source4/pidl/lib/Parse/Pidl/Samba4/EJS.pm b/source4/pidl/lib/Parse/Pidl/Samba4/EJS.pm index 550499a5f3..b9d8a1251c 100644 --- a/source4/pidl/lib/Parse/Pidl/Samba4/EJS.pm +++ b/source4/pidl/lib/Parse/Pidl/Samba4/EJS.pm @@ -117,6 +117,18 @@ sub get_value_of($) } ##################################################################### +# check that a variable we get from ParseExpr isn't a null pointer +sub check_null_pointer($) +{ + my $size = shift; + if ($size =~ /^\*/) { + my $size2 = substr($size, 1); + pidl "if ($size2 == NULL) return NT_STATUS_INVALID_PARAMETER_MIX;"; + } +} + + +##################################################################### # work out is a parse function should be declared static or not sub fn_declare($$) { @@ -196,6 +208,7 @@ sub EjsPullArray($$$$$) if (!$l->{IS_FIXED}) { pidl "EJS_ALLOC_N(ejs, $var, $size);"; } + check_null_pointer($length); pidl "ejs_pull_array_uint8(ejs, v, $name, $var, $length);"; return; } @@ -492,6 +505,7 @@ sub EjsPushArray($$$$$) } # uint8 arrays are treated as data blobs if ($nl->{TYPE} eq 'DATA' && $e->{TYPE} eq 'uint8') { + check_null_pointer($length); pidl "ejs_push_array_uint8(ejs, v, $name, $var, $length);"; return; } |