File libcdio-0.94-leak-08.patch of Package libcdio.24379

Partial patch.

The original commit breaks API and ABI. This patch extracts only leak
fixes.

From bf7ee89d6eb22887f356d90d03c03e4255dd236f Mon Sep 17 00:00:00 2001
From: "R. Bernstein" <rocky@gnu.org>
Date: Thu, 30 Nov 2017 06:38:17 -0500
Subject: [PATCH 8/20] Lots of cleanups...

isio9660.h, iso9660.c, iso9660.hpp
  remove mode2 from is9660_fs_stat_translate() and in C++ version
  go over doxygen comments. (More is needed)

iso-info.c, cd-info.c: use alloca() instead of malloc() where possible

test/Mamefile.am: correct remake comments for check-leaks

testisocd2.c: make leak free
iso9660_fs.c: fix memory leak in iso9660_ifs_find_lsn
---
 configure.ac               |   2 +-
 include/cdio++/iso9660.hpp |  14 ++--
 include/cdio/iso9660.h     | 112 +++++++++++++++++++++++------
 lib/cdio++/iso9660.cpp     |   8 +--
 lib/iso9660/iso9660_fs.c   | 144 ++++++++++++++++++++++++++++++-------
 src/cd-info.c              |  12 ++--
 test/Makefile.am           |   2 +-
 test/driver/Makefile.am    |   2 +-
 test/testisocd2.c          |  13 ++--
 9 files changed, 231 insertions(+), 78 deletions(-)

Index: libcdio-0.94/lib/iso9660/iso9660_fs.c
===================================================================
--- libcdio-0.94.orig/lib/iso9660/iso9660_fs.c
+++ libcdio-0.94/lib/iso9660/iso9660_fs.c
@@ -1527,8 +1527,12 @@ iso9660_stat_t *
 iso9660_ifs_find_lsn(iso9660_t *p_iso, lsn_t i_lsn)
 {
   char *psz_full_filename = NULL;
-  return find_lsn_recurse (p_iso, (iso9660_readdir_t *) iso9660_ifs_readdir,
-			   "/", i_lsn, &psz_full_filename);
+  iso9660_stat_t *ret  =
+    find_lsn_recurse (p_iso, (iso9660_readdir_t *) iso9660_ifs_readdir,
+		      "/", i_lsn, &psz_full_filename);
+  if (psz_full_filename != NULL)
+    free(psz_full_filename);
+  return ret;
 }
 
 /*!
@@ -1547,6 +1551,9 @@ iso9660_ifs_find_lsn_with_path(iso9660_t
 
 /*!
   Free the passed iso9660_stat_t structure.
+
+  @param p_stat iso9660 stat buffer to free.
+
  */
 void
 iso9660_stat_free(iso9660_stat_t *p_stat)
Index: libcdio-0.94/src/cd-info.c
===================================================================
--- libcdio-0.94.orig/src/cd-info.c
+++ libcdio-0.94/src/cd-info.c
@@ -68,6 +68,10 @@
 #include <errno.h>
 #endif
 
+#ifdef HAVE_ALLOCA_H
+#include <alloca.h>
+#endif
+
 #define STRONG "__________________________________\n"
 #define NORMAL ""
 
@@ -543,7 +547,7 @@ print_iso9660_recurse (CdIo_t *p_cdio, c
   CdioList_t *p_dirlist =  _cdio_list_new ();
   CdioListNode_t *entnode;
   uint8_t i_joliet_level;
-  char *translated_name = (char *) malloc(4096);
+  char *translated_name = (char *) alloca(4096);
   size_t translated_name_size = 4096;
 
   i_joliet_level = (opts.no_joliet)
@@ -556,7 +560,6 @@ print_iso9660_recurse (CdIo_t *p_cdio, c
 
   if (NULL == p_entlist) {
     report( stderr, "Error getting above directory information\n" );
-    free(translated_name);
     free(p_dirlist);
     return;
   }
@@ -570,8 +573,6 @@ print_iso9660_recurse (CdIo_t *p_cdio, c
       char _fullname[4096] = { 0, };
        if (strlen(psz_iso_name) >= translated_name_size) {
          translated_name_size = strlen(psz_iso_name)+1;
-         free(translated_name);
-         translated_name = (char *) malloc(translated_name_size);
          if (!translated_name) {
            report( stderr, "Error allocating memory\n" );
 	   _cdio_list_free3 (p_dirlist, true, free);
@@ -603,7 +604,6 @@ print_iso9660_recurse (CdIo_t *p_cdio, c
         p_statbuf->rr.i_symlink = 0;
       }
     }
-    free (translated_name);
 
   _cdio_list_free3 (p_entlist, true, (CdioDataFree_t) iso9660_stat_free);
 
Index: libcdio-0.94/test/testisocd2.c
===================================================================
--- libcdio-0.94.orig/test/testisocd2.c
+++ libcdio-0.94/test/testisocd2.c
@@ -134,7 +134,6 @@ main(int argc, const char *argv[])
 	  rc = 5;
 	  goto exit;
 	}
-	free(psz_path);
       } else {
 	fprintf(stderr, "Path returned for fs_find_lsn_with_path is NULL\n");
 	rc = 6;
@@ -152,11 +151,13 @@ main(int argc, const char *argv[])
 	  goto exit;
 	}
   exit:
-    iso9660_stat_free(p_statbuf2);
-    iso9660_stat_free(p_statbuf3);
-    iso9660_stat_free(p_statbuf);
-    iso9660_close(p_iso);
-    exit(rc);
+      if (psz_path != NULL)
+      	free(psz_path);
+      iso9660_stat_free(p_statbuf2);
+      iso9660_stat_free(p_statbuf3);
+      iso9660_stat_free(p_statbuf);
+      iso9660_close(p_iso);
+      exit(rc);
     }
   }