Give error for regexec with pmatch=NULL and REG_STARTEND set.

git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1614 2f5784b3-3f2a-0410-8824-cb99058d5e15

2 files changed, 4 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 405f156..cfa7066 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -17,6 +17,9 @@ Version 8.39 xx-xxxxxx-201x
 
 3.  Further to 8.38/46, negated classes such as [^[:^ascii:]\d] were also not 
     working correctly in UCP mode.
+    
+4.  The POSIX wrapper function regexec() crashed if the option REG_STARTEND
+    was set when the pmatch argument was NULL. It now returns REG_INVARG.
 
 
 Version 8.38 23-November-2015
diff --git a/pcreposix.c b/pcreposix.c
index f024423..dcc13ef 100644
--- a/pcreposix.c
+++ b/pcreposix.c
@@ -364,6 +364,7 @@ start location rather than being passed as a PCRE "starting offset". */
 
 if ((eflags & REG_STARTEND) != 0)
   {
+  if (pmatch == NULL) return REG_INVARG; 
   so = pmatch[0].rm_so;
   eo = pmatch[0].rm_eo;
   }