From d526d4c17f9de11c4a7a2cd5f27e7e4419d9b33a Mon Sep 17 00:00:00 2001
From: Jay Berkenbilt <ejb@ql.org>
Date: Sat, 22 Jan 2022 18:49:05 -0500
Subject: QPDFJob: convert Under/Overlay to use shared pointers

---
 include/qpdf/QPDFJob.hh | 6 ++----
 libqpdf/QPDFJob.cc      | 4 ++--
 libqpdf/QPDFJob_argv.cc | 6 +++---
 3 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/include/qpdf/QPDFJob.hh b/include/qpdf/QPDFJob.hh
index b57ae5b4..4192be66 100644
--- a/include/qpdf/QPDFJob.hh
+++ b/include/qpdf/QPDFJob.hh
@@ -148,8 +148,6 @@ class QPDFJob
     {
         UnderOverlay(char const* which) :
             which(which),
-            filename(0),
-            password(0),
             to_nr("1-z"),
             from_nr("1-z"),
             repeat_nr("")
@@ -157,8 +155,8 @@ class QPDFJob
         }
 
         std::string which;
-        char const* filename;
-        char const* password;
+        std::string filename;
+        std::shared_ptr<char> password;
         std::string to_nr;
         std::string from_nr;
         std::string repeat_nr;
diff --git a/libqpdf/QPDFJob.cc b/libqpdf/QPDFJob.cc
index 591f306a..0a394745 100644
--- a/libqpdf/QPDFJob.cc
+++ b/libqpdf/QPDFJob.cc
@@ -1934,13 +1934,13 @@ QPDFJob::processInputSource(
 void
 QPDFJob::validateUnderOverlay(QPDF& pdf, QPDFJob::UnderOverlay* uo)
 {
-    if (0 == uo->filename)
+    if (uo->filename.empty())
     {
         return;
     }
     QPDFPageDocumentHelper main_pdh(pdf);
     int main_npages = QIntC::to_int(main_pdh.getAllPages().size());
-    uo->pdf = processFile(uo->filename, uo->password);
+    uo->pdf = processFile(uo->filename.c_str(), uo->password.get());
     QPDFPageDocumentHelper uo_pdh(*(uo->pdf));
     int uo_npages = QIntC::to_int(uo_pdh.getAllPages().size());
     try
diff --git a/libqpdf/QPDFJob_argv.cc b/libqpdf/QPDFJob_argv.cc
index 9ad02a02..316beda0 100644
--- a/libqpdf/QPDFJob_argv.cc
+++ b/libqpdf/QPDFJob_argv.cc
@@ -1135,7 +1135,7 @@ ArgParser::argEnd256BitEncryption()
 void
 ArgParser::argUOPositional(char* arg)
 {
-    if (o.under_overlay->filename)
+    if (! o.under_overlay->filename.empty())
     {
         usage(o.under_overlay->which + " file already specified");
     }
@@ -1175,13 +1175,13 @@ ArgParser::argUORepeat(char* parameter)
 void
 ArgParser::argUOPassword(char* parameter)
 {
-    o.under_overlay->password = parameter;
+    o.under_overlay->password = QUtil::make_shared_cstr(parameter);
 }
 
 void
 ArgParser::argEndUnderlayOverlay()
 {
-    if (0 == o.under_overlay->filename)
+    if (o.under_overlay->filename.empty())
     {
         usage(o.under_overlay->which + " file not specified");
     }
-- 
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