Re: ltdl bugs

[Peter O'Gorman]

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Jeff Squyres wrote:
| I think that I have found 2 bugs in libltdl (1.5.14).  These are
| repeatable on Linux 2.4 machines:
|
| 1. If you lt_dlopen(NULL) and then lt_dlclose() the handle that was
| returned, a memory leak ensues.  This is easily reproducible by writing
| a short program:
|
| -----
| #include <ltdl.h>
|
| int main(int argc, char* argv[]) {
|     lt_dlhandle handle;
|
|     lt_dlinit();
|     handle = lt_dlopen(NULL);
|     lt_dlclose(handle);
|     lt_dlexit();
|     return 0;
| }

| I haven't fully audited what is happening, but I think that this might
| be the correct solution...?

I am not sure that this is a bug, if you check the return code from
lt_dlclose(), you will notice that it fails.


| -----
| lttest.c:12: warning: ISO C forbids assignment between function pointer
| and `void *'
| -----
|
| Can a second function be added, perhaps lt_dlsymfunc(), that returns
| function pointers instead of (void*)?

I think that something similar to freebsd's dlfunc() call would be a good
idea too, it is even in the TODO :)

Peter
- --
Peter O'Gorman - http://www.pogma.com
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