1 files changed, 146 insertions, 0 deletions
diff --git a/contrib/apr/user/unix/userinfo.c b/contrib/apr/user/unix/userinfo.c
new file mode 100644
index 000000000000..516445b56d55
--- /dev/null
+++ b/contrib/apr/user/unix/userinfo.c
@@ -0,0 +1,146 @@
+/* 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_PWD_H
+#include <pwd.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 APR_WANT_MEMFUNC
+#include "apr_want.h"
+
+#define PWBUF_SIZE 2048
+
+static apr_status_t getpwnam_safe(const char *username,
+                                  struct passwd *pw,
+                                  char pwbuf[PWBUF_SIZE])
+{
+    struct passwd *pwptr;
+#if APR_HAS_THREADS && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_GETPWNAM_R)
+    apr_status_t rv;
+
+    /* POSIX defines getpwnam_r() et al to return the error number
+     * rather than set errno, and requires pwptr to be set to NULL if
+     * the entry is not found, imply that "not found" is not an error
+     * condition; some implementations do return 0 with pwptr set to
+     * NULL. */
+    rv = getpwnam_r(username, pw, pwbuf, PWBUF_SIZE, &pwptr);
+    if (rv) {
+        return rv;
+    }
+    if (pwptr == NULL) {
+        return APR_ENOENT;
+    }
+#else
+    /* Some platforms (e.g. FreeBSD 4.x) do not set errno on NULL "not
+     * found" return values for the non-threadsafe function either. */
+    errno = 0;
+    if ((pwptr = getpwnam(username)) != NULL) {
+        memcpy(pw, pwptr, sizeof *pw);
+    }
+    else {
+        return errno ? errno : APR_ENOENT;
+    }
+#endif
+    return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_uid_homepath_get(char **dirname,
+                                               const char *username,
+                                               apr_pool_t *p)
+{
+    struct passwd pw;
+    char pwbuf[PWBUF_SIZE];
+    apr_status_t rv;
+
+    if ((rv = getpwnam_safe(username, &pw, pwbuf)) != APR_SUCCESS)
+        return rv;
+
+#ifdef OS2
+    /* Need to manually add user name for OS/2 */
+    *dirname = apr_pstrcat(p, pw.pw_dir, pw.pw_name, NULL);
+#else
+    *dirname = apr_pstrdup(p, pw.pw_dir);
+#endif
+    return APR_SUCCESS;
+}
+
+
+
+APR_DECLARE(apr_status_t) apr_uid_current(apr_uid_t *uid,
+                                          apr_gid_t *gid,
+                                          apr_pool_t *p)
+{
+    *uid = getuid();
+    *gid = getgid();
+  
+    return APR_SUCCESS;
+}
+
+
+
+
+APR_DECLARE(apr_status_t) apr_uid_get(apr_uid_t *uid, apr_gid_t *gid,
+                                      const char *username, apr_pool_t *p)
+{
+    struct passwd pw;
+    char pwbuf[PWBUF_SIZE];
+    apr_status_t rv;
+        
+    if ((rv = getpwnam_safe(username, &pw, pwbuf)) != APR_SUCCESS)
+        return rv;
+
+    *uid = pw.pw_uid;
+    *gid = pw.pw_gid;
+
+    return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_uid_name_get(char **username, apr_uid_t userid,
+                                           apr_pool_t *p)
+{
+    struct passwd *pw;
+#if APR_HAS_THREADS && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_GETPWUID_R)
+    struct passwd pwd;
+    char pwbuf[PWBUF_SIZE];
+    apr_status_t rv;
+
+    rv = getpwuid_r(userid, &pwd, pwbuf, sizeof(pwbuf), &pw);
+    if (rv) {
+        return rv;
+    }
+
+    if (pw == NULL) {
+        return APR_ENOENT;
+    }
+
+#else
+    errno = 0;
+    if ((pw = getpwuid(userid)) == NULL) {
+        return errno ? errno : APR_ENOENT;
+    }
+#endif
+    *username = apr_pstrdup(p, pw->pw_name);
+    return APR_SUCCESS;
+}