1 files changed, 63 insertions, 0 deletions
diff --git a/usr.bin/mail/getname.c b/usr.bin/mail/getname.c
new file mode 100644
index 000000000000..85721b1d16ae
--- /dev/null
+++ b/usr.bin/mail/getname.c
@@ -0,0 +1,63 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  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. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ */
+
+#include "rcv.h"
+#include <pwd.h>
+#include "extern.h"
+
+/* Getname / getuserid for those with hashed passwd data base). */
+
+/*
+ * Search the passwd file for a uid. Return name on success, NULL on failure.
+ */
+char *
+getname(uid_t uid)
+{
+	struct passwd *pw;
+
+	if ((pw = getpwuid(uid)) == NULL)
+		return (NULL);
+	return (pw->pw_name);
+}
+
+/*
+ * Convert the passed name to a user id and return it.  Return -1
+ * on error.
+ */
+uid_t
+getuserid(char name[])
+{
+	struct passwd *pw;
+
+	if ((pw = getpwnam(name)) == NULL)
+		return (-1);
+	return (pw->pw_uid);
+}