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authorUlrich Drepper <drepper@redhat.com>2004-03-08 07:58:18 +0000
committerUlrich Drepper <drepper@redhat.com>2004-03-08 07:58:18 +0000
commitb8ec72d947a1494db06552d31b3a637ccab79b31 (patch)
treee3200d6ce162a64c7f2a18b14ef05f2135d79631 /libidn/idn-stub.c
parente2fd3cbe085d9867710ee7b3d487c16c150fa204 (diff)
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Update.
2004-03-07 Ulrich Drepper <drepper@redhat.com> * idn-stub.c: Include <gnu/lib-names.h>. Use LIBCIDN_SO for dlopen. * shlib-versions: New file. * toutf8.c: Include <sys/param.h>.
Diffstat (limited to 'libidn/idn-stub.c')
-rw-r--r--libidn/idn-stub.c28
1 files changed, 20 insertions, 8 deletions
diff --git a/libidn/idn-stub.c b/libidn/idn-stub.c
index f2a1161..1e5cc1f 100644
--- a/libidn/idn-stub.c
+++ b/libidn/idn-stub.c
@@ -23,6 +23,8 @@
#include <stdio.h>
#include <string.h>
#include <dlfcn.h>
+#include <gnu/lib-names.h>
+#include <bits/libc-lock.h>
/* Get specification for idna_to_ascii_lz. */
#include "idna.h"
@@ -53,20 +55,30 @@ __idna_to_ascii_lz (const char *input, char **output, int flags)
if (h == NULL)
{
- h = __libc_dlopen ("libcidn.so");
+ __libc_lock_define_initialized (static, lock);
+ __libc_lock_lock (lock);
+
+ /* Retest in case some other thread arrived here at the same time. */
if (h == NULL)
- h = (void *) 1l;
- else
{
- /* Get the function we are interested in. */
- to_ascii_lz = __libc_dlsym (h, "idna_to_ascii_lz");
- if (to_ascii_lz == NULL)
+ h = __libc_dlopen (LIBCIDN_SO);
+
+ if (h == NULL)
+ h = (void *) 1l;
+ else
{
- __libc_dlclose (h);
- h = (void *) 1l;
+ /* Get the function we are interested in. */
+ to_ascii_lz = __libc_dlsym (h, "idna_to_ascii_lz");
+ if (to_ascii_lz == NULL)
+ {
+ __libc_dlclose (h);
+ h = (void *) 1l;
+ }
}
}
+
+ __libc_lock_unlock (lock);
}
if (h == (void *) 1l)