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-rw-r--r--crypto/heimdal/lib/krb5/plugin.c264
1 files changed, 0 insertions, 264 deletions
diff --git a/crypto/heimdal/lib/krb5/plugin.c b/crypto/heimdal/lib/krb5/plugin.c
deleted file mode 100644
index bae2849..0000000
--- a/crypto/heimdal/lib/krb5/plugin.c
+++ /dev/null
@@ -1,264 +0,0 @@
-/*
- * Copyright (c) 2006 - 2007 Kungliga Tekniska Högskolan
- * (Royal Institute of Technology, Stockholm, Sweden).
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the Institute nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include "krb5_locl.h"
-RCSID("$Id: plugin.c 22033 2007-11-10 10:39:47Z lha $");
-#ifdef HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-#include <dirent.h>
-
-struct krb5_plugin {
- void *symbol;
- void *dsohandle;
- struct krb5_plugin *next;
-};
-
-struct plugin {
- enum krb5_plugin_type type;
- void *name;
- void *symbol;
- struct plugin *next;
-};
-
-static HEIMDAL_MUTEX plugin_mutex = HEIMDAL_MUTEX_INITIALIZER;
-static struct plugin *registered = NULL;
-
-static const char *plugin_dir = LIBDIR "/plugin/krb5";
-
-/*
- *
- */
-
-void *
-_krb5_plugin_get_symbol(struct krb5_plugin *p)
-{
- return p->symbol;
-}
-
-struct krb5_plugin *
-_krb5_plugin_get_next(struct krb5_plugin *p)
-{
- return p->next;
-}
-
-/*
- *
- */
-
-#ifdef HAVE_DLOPEN
-
-static krb5_error_code
-loadlib(krb5_context context,
- enum krb5_plugin_type type,
- const char *name,
- const char *lib,
- struct krb5_plugin **e)
-{
- *e = calloc(1, sizeof(**e));
- if (*e == NULL) {
- krb5_set_error_string(context, "out of memory");
- return ENOMEM;
- }
-
-#ifndef RTLD_LAZY
-#define RTLD_LAZY 0
-#endif
-
- (*e)->dsohandle = dlopen(lib, RTLD_LAZY);
- if ((*e)->dsohandle == NULL) {
- free(*e);
- *e = NULL;
- krb5_set_error_string(context, "Failed to load %s: %s",
- lib, dlerror());
- return ENOMEM;
- }
-
- /* dlsym doesn't care about the type */
- (*e)->symbol = dlsym((*e)->dsohandle, name);
- if ((*e)->symbol == NULL) {
- dlclose((*e)->dsohandle);
- free(*e);
- krb5_clear_error_string(context);
- return ENOMEM;
- }
-
- return 0;
-}
-#endif /* HAVE_DLOPEN */
-
-/**
- * Register a plugin symbol name of specific type.
- * @param context a Keberos context
- * @param type type of plugin symbol
- * @param name name of plugin symbol
- * @param symbol a pointer to the named symbol
- * @return In case of error a non zero error com_err error is returned
- * and the Kerberos error string is set.
- *
- * @ingroup krb5_support
- */
-
-krb5_error_code
-krb5_plugin_register(krb5_context context,
- enum krb5_plugin_type type,
- const char *name,
- void *symbol)
-{
- struct plugin *e;
-
- e = calloc(1, sizeof(*e));
- if (e == NULL) {
- krb5_set_error_string(context, "out of memory");
- return ENOMEM;
- }
- e->type = type;
- e->name = strdup(name);
- if (e->name == NULL) {
- free(e);
- krb5_set_error_string(context, "out of memory");
- return ENOMEM;
- }
- e->symbol = symbol;
-
- HEIMDAL_MUTEX_lock(&plugin_mutex);
- e->next = registered;
- registered = e;
- HEIMDAL_MUTEX_unlock(&plugin_mutex);
-
- return 0;
-}
-
-krb5_error_code
-_krb5_plugin_find(krb5_context context,
- enum krb5_plugin_type type,
- const char *name,
- struct krb5_plugin **list)
-{
- struct krb5_plugin *e;
- struct plugin *p;
- krb5_error_code ret;
- char *sysdirs[2] = { NULL, NULL };
- char **dirs = NULL, **di;
- struct dirent *entry;
- char *path;
- DIR *d = NULL;
-
- *list = NULL;
-
- HEIMDAL_MUTEX_lock(&plugin_mutex);
-
- for (p = registered; p != NULL; p = p->next) {
- if (p->type != type || strcmp(p->name, name) != 0)
- continue;
-
- e = calloc(1, sizeof(*e));
- if (e == NULL) {
- HEIMDAL_MUTEX_unlock(&plugin_mutex);
- krb5_set_error_string(context, "out of memory");
- ret = ENOMEM;
- goto out;
- }
- e->symbol = p->symbol;
- e->dsohandle = NULL;
- e->next = *list;
- *list = e;
- }
- HEIMDAL_MUTEX_unlock(&plugin_mutex);
-
-#ifdef HAVE_DLOPEN
-
- dirs = krb5_config_get_strings(context, NULL, "libdefaults",
- "plugin_dir", NULL);
- if (dirs == NULL) {
- sysdirs[0] = rk_UNCONST(plugin_dir);
- dirs = sysdirs;
- }
-
- for (di = dirs; *di != NULL; di++) {
-
- d = opendir(*di);
- if (d == NULL)
- continue;
-
- while ((entry = readdir(d)) != NULL) {
- asprintf(&path, "%s/%s", *di, entry->d_name);
- if (path == NULL) {
- krb5_set_error_string(context, "out of memory");
- ret = ENOMEM;
- goto out;
- }
- ret = loadlib(context, type, name, path, &e);
- free(path);
- if (ret)
- continue;
-
- e->next = *list;
- *list = e;
- }
- closedir(d);
- }
- if (dirs != sysdirs)
- krb5_config_free_strings(dirs);
-#endif /* HAVE_DLOPEN */
-
- if (*list == NULL) {
- krb5_set_error_string(context, "Did not find a plugin for %s", name);
- return ENOENT;
- }
-
- return 0;
-
-out:
- if (dirs && dirs != sysdirs)
- krb5_config_free_strings(dirs);
- if (d)
- closedir(d);
- _krb5_plugin_free(*list);
- *list = NULL;
-
- return ret;
-}
-
-void
-_krb5_plugin_free(struct krb5_plugin *list)
-{
- struct krb5_plugin *next;
- while (list) {
- next = list->next;
- if (list->dsohandle)
- dlclose(list->dsohandle);
- free(list);
- list = next;
- }
-}
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