From e16a6e8eb4f81144a14d31b66774c65e900caa7d Mon Sep 17 00:00:00 2001
From: Timothy Gu <timothygu99@gmail.com>
Date: Mon, 10 Feb 2014 03:46:33 +0000
Subject: test: add trying to load nonexistent symbols test

---
 test.c | 83 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 82 insertions(+), 1 deletion(-)

diff --git a/test.c b/test.c
index b8f6c9e..4dff8f0 100644
--- a/test.c
+++ b/test.c
@@ -42,15 +42,20 @@
  * - Get global object
  * - Get symbol from library through library object <- works
  * - Run function if it worked
+ * - Get nonexistent symbol from library through library object <- fails
  * - Get symbol from library through global object  <- works
  * - Run function if it worked
+ * - Get nonexistent symbol from library through global object <- fails
  * - Close library
  * - Open library with RTLD_LOCAL
  * - Get symbol from library through library object <- works
  * - Run function if it worked
- * - Get symbol from library through global object  <- fails
+ * - Get nonexistent symbol from library through library object <- fails
+ * - Get local symbol from library through global object  <- fails
+ * - Get nonexistent local symbol from library through global object <- fails
  * - Open library again (without closing it first) with RTLD_GLOBAL
  * - Get symbol from library through global object  <- works
+ * - Get nonexistent symbol from library through global object <- fails
  * - Close library
  * - Close global object
  *
@@ -63,6 +68,7 @@ int main()
     void *library;
     char *error;
     int (*function)( void );
+    int (*nonexistentfunction)( void );
     int ret;
 
     library = dlopen( "testdll.dll", RTLD_GLOBAL );
@@ -101,6 +107,21 @@ int main()
 
     RUNFUNC;
 
+    nonexistentfunction = dlsym( library, "nonexistentfunction" );
+    if( nonexistentfunction )
+    {
+        error = dlerror( );
+        printf( "ERROR\tGot nonexistent symbol from library handle: %p\n", nonexistentfunction );
+        CLOSE_LIB;
+        CLOSE_GLOBAL;
+        RETURN_ERROR;
+    }
+    else {
+        error = dlerror( );
+        printf( "SUCCESS\tCould not get nonexistent symbol from library handle: %s\n",
+                error ? error : "" );
+    }
+
     function = dlsym( global, "function" );
     if( !function )
     {
@@ -116,6 +137,21 @@ int main()
 
     RUNFUNC;
 
+    nonexistentfunction = dlsym( global, "nonexistentfunction" );
+    if( nonexistentfunction )
+    {
+        error = dlerror( );
+        printf( "ERROR\tGot nonexistent symbol from global handle: %p\n", nonexistentfunction );
+        CLOSE_LIB;
+        CLOSE_GLOBAL;
+        RETURN_ERROR;
+    }
+    else {
+        error = dlerror( );
+        printf( "SUCCESS\tCould not get nonexistent symbol from global handle: %s\n",
+                error ? error : "" );
+    }
+
     ret = dlclose( library );
     if( ret )
     {
@@ -153,6 +189,21 @@ int main()
 
     RUNFUNC;
 
+    nonexistentfunction = dlsym( library, "nonexistentfunction" );
+    if( nonexistentfunction )
+    {
+        error = dlerror( );
+        printf( "ERROR\tGot nonexistent symbol from library handle: %p\n", nonexistentfunction );
+        CLOSE_LIB;
+        CLOSE_GLOBAL;
+        RETURN_ERROR;
+    }
+    else {
+        error = dlerror( );
+        printf( "SUCCESS\tCould not get nonexistent symbol from library handle: %s\n",
+                error ? error : "" );
+    }
+
     function = dlsym( global, "function" );
     if( function )
     {
@@ -166,6 +217,21 @@ int main()
     else
         printf( "SUCCESS\tDid not get local symbol from global handle.\n" );
 
+    nonexistentfunction = dlsym( global, "nonexistentfunction" );
+    if( nonexistentfunction )
+    {
+        error = dlerror( );
+        printf( "ERROR\tGot nonexistent local symbol from global handle: %p\n", nonexistentfunction );
+        CLOSE_LIB;
+        CLOSE_GLOBAL;
+        RETURN_ERROR;
+    }
+    else {
+        error = dlerror( );
+        printf( "SUCCESS\tDid not get nonexistent local symbol from global handle: %s\n",
+                error ? error : "" );
+    }
+
     library = dlopen( "testdll.dll", RTLD_GLOBAL );
     if( !library )
     {
@@ -193,6 +259,21 @@ int main()
 
     RUNFUNC;
 
+    nonexistentfunction = dlsym( global, "nonexistentfunction" );
+    if( nonexistentfunction )
+    {
+        error = dlerror( );
+        printf( "ERROR\tGot nonexistent symbol from global handle: %p\n", nonexistentfunction );
+        CLOSE_LIB;
+        CLOSE_GLOBAL;
+        RETURN_ERROR;
+    }
+    else {
+        error = dlerror( );
+        printf( "SUCCESS\tCould not get nonexistent symbol from global handle: %s\n",
+                error ? error : "" );
+    }
+
     ret = dlclose( library );
     if( ret )
     {
-- 
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