Ticket #9416: 0001-Added-capability-to-accept-writes-to-dev-random.patch

src/add-ons/kernel/drivers/random/driver.cpp

@@ -189 +189 @@
 {
     volatile uint32 i, j;
     OCTET x, y;
+    
+    x.Q[0] = 0;
 
     for (j = initTimes; j; j--) {
         for (i = NK * initTimes; i; i--) {
@@ -402 +404 @@
     int32 *buffer = (int32 *)_buffer;
     uint8 *buffer8 = (uint8 *)_buffer;
     uint32 i, j;
-    TRACE((DRIVER_NAME ": read(%Ld,, %d)\n", position, *_numBytes));
+    TRACE((DRIVER_NAME ": read(%Ld,, %ld)\n", position, *_numBytes));
 
     mutex_lock(&sRandomLock);
     sRandomCount += *_numBytes;
@@ -430 +432 @@
 static status_t 
 random_write(void *cookie, off_t position, const void *buffer, size_t *_numBytes)
 {
-    TRACE((DRIVER_NAME ": write(%Ld,, %d)\n", position, *_numBytes));
-    *_numBytes = 0;
-    return EINVAL;
+    size_t i;
+    OCTET* data;
+    TRACE((DRIVER_NAME ": write(%Ld,, %ld)\n", position, *_numBytes));
+    mutex_lock(&sRandomLock);
+    data = (OCTET*)buffer;
+    for (i = 0; i < *_numBytes / sizeof(OCTET); i++) {
+        chseed(sRandomEnv, data->Q[0]);
+        data++;
+    }
+    mutex_unlock(&sRandomLock);
+    return B_OK;
 }
 
 
 static status_t
 random_control(void *cookie, uint32 op, void *arg, size_t length)
 {
-    TRACE((DRIVER_NAME ": ioctl(%d)\n", op));
+    TRACE((DRIVER_NAME ": ioctl(%ld)\n", op));
     return B_ERROR;
 }
 
@@ -473 +483 @@
         notify_select_event(sync, event);
 #endif
     } else if (event == B_SELECT_WRITE) {
-        /* we're not writable */
-        return EINVAL;
+        /* we're now writable */
+#ifndef HAIKU_TARGET_PLATFORM_HAIKU
+        notify_select_event(sync, ref);
+#else
+        notify_select_event(sync, event);
+#endif
     }
-
     return B_OK;
 }