1 files changed, 87 insertions, 0 deletions
diff --git a/user/unix/groupinfo.c b/user/unix/groupinfo.c
new file mode 100644
index 0000000..7967219
--- /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;
+}