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-rw-r--r--user/unix/groupinfo.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/user/unix/groupinfo.c b/user/unix/groupinfo.c
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--- /dev/null
+++ b/user/unix/groupinfo.c
@@ -0,0 +1,87 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "apr_strings.h"
+#include "apr_portable.h"
+#include "apr_user.h"
+#include "apr_private.h"
+#ifdef HAVE_GRP_H
+#include <grp.h>
+#endif
+#if APR_HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#if APR_HAVE_UNISTD_H
+#include <unistd.h> /* for _POSIX_THREAD_SAFE_FUNCTIONS */
+#endif
+
+#define GRBUF_SIZE 8192
+
+APR_DECLARE(apr_status_t) apr_gid_name_get(char **groupname, apr_gid_t groupid,
+ apr_pool_t *p)
+{
+ struct group *gr;
+
+#if APR_HAS_THREADS && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_GETGRGID_R)
+ struct group grp;
+ char grbuf[GRBUF_SIZE];
+ apr_status_t rv;
+
+ /* See comment in getpwnam_safe on error handling. */
+ rv = getgrgid_r(groupid, &grp, grbuf, sizeof(grbuf), &gr);
+ if (rv) {
+ return rv;
+ }
+ if (gr == NULL) {
+ return APR_ENOENT;
+ }
+#else
+ errno = 0;
+ if ((gr = getgrgid(groupid)) == NULL) {
+ return errno ? errno : APR_ENOENT;
+ }
+#endif
+ *groupname = apr_pstrdup(p, gr->gr_name);
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_gid_get(apr_gid_t *groupid,
+ const char *groupname, apr_pool_t *p)
+{
+ struct group *gr;
+
+#if APR_HAS_THREADS && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_GETGRNAM_R)
+ struct group grp;
+ char grbuf[GRBUF_SIZE];
+ apr_status_t rv;
+
+ /* See comment in getpwnam_safe on error handling. */
+ rv = getgrnam_r(groupname, &grp, grbuf, sizeof(grbuf), &gr);
+ if (rv) {
+ return rv;
+ }
+ if (gr == NULL) {
+ return APR_ENOENT;
+ }
+#else
+ errno = 0;
+ if ((gr = getgrnam(groupname)) == NULL) {
+ return errno ? errno : APR_ENOENT;
+ }
+#endif
+ *groupid = gr->gr_gid;
+ return APR_SUCCESS;
+}