1 files changed, 97 insertions, 0 deletions
diff --git a/mit-pthreads/gen/pwd_internal.c b/mit-pthreads/gen/pwd_internal.c
new file mode 100644
index 00000000000..b0ebc27b5c6
--- /dev/null
+++ b/mit-pthreads/gen/pwd_internal.c
@@ -0,0 +1,97 @@
+/* ==== pwd_internal.c ============================================================
+ * Copyright (c) 1993, 1994 by Chris Provenzano, proven@mit.edu
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *  This product includes software developed by Chris Provenzano.
+ * 4. The name of Chris Provenzano may not be used to endorse or promote 
+ *	  products derived from this software without specific prior written
+ *	  permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``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 CHRIS PROVENZANO 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.
+ *
+ * Description : Thread-safe password hacking functions.
+ *
+ *  1.00 95/02/08 snl
+ *      -Started coding this file.
+ */
+
+#include <pthread.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <pwd.h>
+#include <unistd.h>
+#include "pwd_internal.h"
+
+static pthread_once_t __pw_init = PTHREAD_ONCE_INIT;
+static pthread_key_t __pw_key;
+
+void
+_pw_null_cleanup(void *junkola)
+{
+  pwf_context_t *x = (pwf_context_t *)junkola;
+
+  if (x) {
+    if (x->pwf) {
+      fclose(x->pwf);
+      x->pwf = 0;
+    }
+#ifdef DBM_PWD_SUPPORT
+    if (x->pw_db) {
+      dbm_close(x->pw_db);
+      x->pw_db = 0;
+    }
+#endif /* DBM_PWD_SUPPORT */
+    free((void *)x);
+  }
+}
+
+void
+_pw_create_key()
+{
+  if (pthread_key_create(&__pw_key, _pw_null_cleanup)) {
+    PANIC();
+  }
+}
+
+pwf_context_t *
+_pw_get_data()
+{
+  pwf_context_t *_data;
+
+  pthread_once(&__pw_init, _pw_create_key);
+  _data = (pwf_context_t *)pthread_getspecific(__pw_key);
+  if (!_data) {
+    _data = (pwf_context_t *)malloc(sizeof(pwf_context_t));
+    if (_data) {
+      _data->pwf = 0;
+      _data->line[0] = '\0';
+      _data->pw_stayopen = 0;
+      _data->pw_file = "/etc/passwd";
+#ifdef DBM_PWD_SUPPORT
+      _data->pw_db = 0;
+#endif /* DBM_PWD_SUPPORT */
+      pthread_setspecific(__pw_key, (void *)_data);
+    }
+  }
+  return _data;
+}