diff --git a/configure.in b/configure.in
index 858fea08..be9d6832 100644
--- a/configure.in
+++ b/configure.in
@@ -2,8 +2,8 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.59)
-AC_INIT(ledger, 2.2, johnw@newartisans.com)
-AM_INIT_AUTOMAKE(ledger, 2.2)
+AC_INIT(ledger, 2.3, johnw@newartisans.com)
+AM_INIT_AUTOMAKE(ledger, 2.3)
 AC_CONFIG_SRCDIR([main.cc])
 AC_CONFIG_HEADER([acconf.h])
 
diff --git a/gnucash.cc b/gnucash.cc
index 02604c55..2e4cb911 100644
--- a/gnucash.cc
+++ b/gnucash.cc
@@ -286,8 +286,8 @@ static void dataHandler(void *userData, const char *s, int len)
 
 bool gnucash_parser_t::test(std::istream& in) const
 {
-  char buf[128];
-  in.getline(buf, 127);
+  char buf[5];
+  in.read(buf, 5);
   in.seekg(0, std::ios::beg);
 
   return std::strncmp(buf, "<?xml", 5) == 0;
diff --git a/ofx.cc b/ofx.cc
index de793ec7..4dbd7424 100644
--- a/ofx.cc
+++ b/ofx.cc
@@ -174,9 +174,9 @@ int ofx_proc_status_cb(struct OfxStatusData data, void * status_data)
 
 bool ofx_parser_t::test(std::istream& in) const
 {
-  char buf[256];
+  char buf[80];
 
-  in.getline(buf, 255);
+  in.getline(buf, 79);
   if (std::strncmp(buf, "OFXHEADER", 9) == 0) {
     in.seekg(0, std::ios::beg);
     return true;
@@ -186,7 +186,7 @@ bool ofx_parser_t::test(std::istream& in) const
     return false;
   }
 
-  in.getline(buf, 255);
+  in.getline(buf, 79);
   if (std::strncmp(buf, "<?OFX", 5) != 0 &&
       std::strncmp(buf, "<?ofx", 5) != 0) {
     in.seekg(0, std::ios::beg);
diff --git a/xml.cc b/xml.cc
index 00280c38..0b51469a 100644
--- a/xml.cc
+++ b/xml.cc
@@ -134,15 +134,15 @@ static void dataHandler(void *userData, const char *s, int len)
 
 bool xml_parser_t::test(std::istream& in) const
 {
-  char buf[256];
+  char buf[80];
 
-  in.getline(buf, 255);
+  in.getline(buf, 79);
   if (std::strncmp(buf, "<?xml", 5) != 0) {
     in.seekg(0, std::ios::beg);
     return false;
   }
 
-  in.getline(buf, 255);
+  in.getline(buf, 79);
   if (! std::strstr(buf, "<ledger")) {
     in.seekg(0, std::ios::beg);
     return false;