1 files changed, 64 insertions, 0 deletions
diff --git a/libc/bionic/pututline.c b/libc/bionic/pututline.c
new file mode 100644
index 0000000..2449068
--- /dev/null
+++ b/libc/bionic/pututline.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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 <string.h>
+#include <stdio.h>
+#include <utmp.h>
+
+
+void pututline(struct utmp* utmp)
+{
+    FILE* f;
+    struct utmp u;
+    int i;
+
+    if (!(f = fopen(_PATH_UTMP, "w+")))
+        return;
+
+    while (fread(&u, sizeof(struct utmp), 1, f) == 1)
+    {
+        if (!strncmp(utmp->ut_line, u.ut_line, sizeof(u.ut_line) -1))
+        {
+            if ((i = ftell(f)) < 0)
+                goto ret;
+            if (fseek(f, i - sizeof(struct utmp), SEEK_SET) < 0)
+                goto ret;
+            fwrite(utmp, sizeof(struct utmp), 1, f);
+            goto ret;
+        }
+    }
+
+
+    fclose(f);
+
+    if (!(f = fopen(_PATH_UTMP, "w+")))
+        return;
+    fwrite(utmp, sizeof(struct utmp), 1, f);
+
+ret:
+    fclose(f);
+}