Reduce memory usage by 64K

One buffer for error message is enough.

1 files changed, 9 insertions, 15 deletions

diff --git a/dlfcn.c b/dlfcn.c
index f8af91f..c5d4b3c 100644
--- a/dlfcn.c
+++ b/dlfcn.c
@@ -129,8 +129,7 @@ static void local_rem( HMODULE hModule )
  * the limit.

  */

 static char error_buffer[65535];

-static char *current_error;

-static char dlerror_buffer[65536];

+static BOOL error_occurred;

 

 static void save_err_str( const char *str )

 {

@@ -175,7 +174,7 @@ static void save_err_str( const char *str )
             error_buffer[pos-2] = '\0';

     }

 

-    current_error = error_buffer;

+    error_occurred = TRUE;

 }

 

 static void save_err_ptr_str( const void *ptr )

@@ -214,7 +213,7 @@ void *dlopen( const char *file, int mode )
     HMODULE hModule;

     UINT uMode;

 

-    current_error = NULL;

+    error_occurred = FALSE;

 

     /* Do not let Windows display the critical-error-handler message box */

     uMode = SetErrorMode( SEM_FAILCRITICALERRORS );

@@ -321,7 +320,7 @@ int dlclose( void *handle )
     HMODULE hModule = (HMODULE) handle;

     BOOL ret;

 

-    current_error = NULL;

+    error_occurred = FALSE;

 

     ret = FreeLibrary( hModule );

 

@@ -347,7 +346,8 @@ void *dlsym( void *handle, const char *name )
     HMODULE hModule;

     HANDLE hCurrentProc;

 

-    current_error = NULL;

+    error_occurred = FALSE;

+

     symbol = NULL;

     hCaller = NULL;

     hModule = GetModuleHandle( NULL );

@@ -459,22 +459,16 @@ end:
 

 char *dlerror( void )

 {

-    char *error_pointer = dlerror_buffer;

-    

     /* If this is the second consecutive call to dlerror, return NULL */

-    if (current_error == NULL)

-    {

+    if( !error_occurred )

         return NULL;

-    }

-

-    memcpy(error_pointer, current_error, strlen(current_error) + 1);

 

     /* POSIX says that invoking dlerror( ) a second time, immediately following

      * a prior invocation, shall result in NULL being returned.

      */

-    current_error = NULL;

+    error_occurred = FALSE;

 

-    return error_pointer;

+    return error_buffer;

 }

 

 #ifdef SHARED