1 files changed, 99 insertions, 0 deletions
diff --git a/test/mocklibc/src/pwd.c b/test/mocklibc/src/pwd.c
new file mode 100644
index 0000000..6005a1d
--- /dev/null
+++ b/test/mocklibc/src/pwd.c
@@ -0,0 +1,99 @@
+/**
+ * Copyright 2011 Google Inc. All Rights Reserved.
+ *
+ * Licensed 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.
+ *
+ * Author: Nikki VonHollen <vonhollen@gmail.com>
+ */
+
+#include <pwd.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+#define PASSWD_CONFIG_KEY "MOCK_PASSWD"
+
+static FILE *global_stream = NULL;
+
+void setpwent(void) {
+  if (global_stream)
+    endpwent();
+
+  const char *path = getenv(PASSWD_CONFIG_KEY);
+  if (!path)
+    return;
+
+  global_stream = fopen(path, "r");
+}
+
+struct passwd *getpwent(void) {
+  if (!global_stream)
+    setpwent();
+
+  if (!global_stream)
+    return NULL;
+
+  return fgetpwent(global_stream);
+}
+
+void endpwent(void) {
+  if (!global_stream)
+    return;
+
+  fclose(global_stream);
+  global_stream = NULL;
+}
+
+struct passwd *getpwnam(const char *name) {
+  const char *path = getenv(PASSWD_CONFIG_KEY);
+  if (!path)
+    return NULL;
+
+  FILE *stream = fopen(path, "r");
+  if (!stream)
+    return NULL;
+
+  struct passwd *entry;
+  while ((entry = fgetpwent(stream))) {
+    if (strcmp(entry->pw_name, name) == 0) {
+      fclose(stream);
+      return entry;
+    }
+  }
+
+  fclose(stream);
+  return NULL;
+}
+
+struct passwd *getpwuid(uid_t uid) {
+  const char *path = getenv(PASSWD_CONFIG_KEY);
+  if (!path)
+    return NULL;
+
+  FILE *stream = fopen(path, "r");
+  if (!stream)
+    return NULL;
+
+  struct passwd *entry;
+  while ((entry = fgetpwent(stream))) {
+    if (entry->pw_uid == uid) {
+      fclose(stream);
+      return entry;
+    }
+  }
+
+  fclose(stream);
+  return NULL;
+}