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Fix usage of dlerror to conform to POSIX.

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* cipher/idea-stub.c: Clear last error before dlsym.
--

This is required for NetBSD.

Reported-by: Thomas Klausner
This commit is contained in:
Werner Koch 2012-11-07 21:38:27 +01:00
parent b1abc01d4a
commit c3a5448379
1 changed files with 8 additions and 6 deletions
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14
cipher/idea-stub.c
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@ -25,9 +25,9 @@
problem with this, please see http://www.noepatents.org.
However for research purposes and in certain situations it might be
useful to use this algorithm anyway.
useful to use this algorithm anyway.
We provide this stub which will dynload a idea module and is only
We provide this stub which will dynload a idea module and is only
used if the configure run did't found statically linked file.
See http://www.gnupg.org/why-not-dea.html for details.
*/
@ -55,12 +55,12 @@
#define USE_DYNAMIC_LINKING 1
static int last_error = 0;
void*
dlopen (const char *pathname, int mode)
{
void *h = LoadLibrary (pathname);
if (!h)
if (!h)
{
log_error ("LoadLibrary failed: %s\n", w32_strerror (errno));
last_error = 1;
@ -130,14 +130,16 @@ load_module (const char *name)
goto failure;
}
dlerror (); /* Clear old errors or initialize dlerror. */
sym = dlsym (handle, "idea_get_info");
if (dlerror ())
sym = dlsym (handle, "_idea_get_info");
if ((err=dlerror()))
if ((err=dlerror()))
goto failure;
return (INFO_FNC)sym;
failure:
log_info ("invalid module `%s': %s\n", name?name:"???", err?err:"???");
if (handle)