tree f85a20ed9ceae1563e74bd86a81d062fa781ad4d
parent a616ba6f5fbee93134f121ac1da47397b071f365
author Christian Ruppert <c.ruppert@babiel.com> 1414598753 +0100
committer Willy Tarreau <w@1wt.eu> 1414601071 +0100
encoding latin1

BUG/MEDIUM: regex: fix pcre_study error handling

pcre_study() may return NULL even though it succeeded. In this case error is
NULL otherwise error is not NULL. Also see man 3 pcre_study.

Previously a ACL pattern of e.g. ".*" would cause error because pcre_study did
not found anything to speed up matching and returned regex->extra = NULL and
error = NULL which in this case was a false-positive. That happend only when
PCRE_JIT was enabled for HAProxy but libpcre has been built without JIT.

Signed-off-by: Christian Ruppert <c.ruppert@babiel.com>

[wt: this needs to be backported to 1.5 as well]