1 files changed, 93 insertions, 0 deletions
diff --git a/libc/bionic/utmp.c b/libc/bionic/utmp.c
new file mode 100644
index 0000000..c3b55da
--- /dev/null
+++ b/libc/bionic/utmp.c
@@ -0,0 +1,93 @@
+/*-
+ * Copyright (c) 2002 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * 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 the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <sys/cdefs.h>
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <utmp.h>
+
+static struct utmp utmp;
+static FILE *ut;
+static char utfile[MAXPATHLEN] = _PATH_UTMP;
+
+void
+setutent(void)
+{
+	if (ut == NULL)
+		return;
+	(void)fseeko(ut, (off_t)0, SEEK_SET);
+}
+
+struct utmp *
+getutent(void)
+{
+	if (ut == NULL) {
+		if ((ut = fopen(utfile, "r")) == NULL)
+			return NULL;
+	}
+	if (fread(&utmp, sizeof(utmp), 1, ut) == 1)
+		return &utmp;
+	return NULL;
+}
+
+void
+endutent(void)
+{
+	if (ut != NULL) {
+		(void)fclose(ut);
+		ut = NULL;
+	}
+}
+
+int
+utmpname(const char *fname)
+{
+	size_t len = strlen(fname);
+
+	if (len >= sizeof(utfile))
+		return 0;
+
+	/* must not end in x! */
+	if (fname[len - 1] == 'x')
+		return 0;
+
+	(void)strlcpy(utfile, fname, sizeof(utfile));
+	endutent();
+	return 1;
+}