X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=blobdiff_plain;f=daemon%2Fupload.c;h=604e705444a309d317d71c4b9f5bc9b7c1de996b;hp=d2feb028394800e9f8f21eecc34c3bc6ae476332;hb=8c37961b455cbc72d4879da65c6aafd332857f05;hpb=1765330e07a48dc6f7bdef7007f69ebe606fa731

diff --git a/daemon/upload.c b/daemon/upload.c
index d2feb02..604e705 100644
--- a/daemon/upload.c
+++ b/daemon/upload.c
@@ -1,5 +1,5 @@
 /* libguestfs - the guestfsd daemon
- * Copyright (C) 2009 Red Hat Inc. 
+ * Copyright (C) 2009 Red Hat Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -20,21 +20,139 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdint.h>
 #include <string.h>
 #include <fcntl.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
 
 #include "../src/guestfs_protocol.h"
 #include "daemon.h"
 #include "actions.h"
 
+static int
+write_cb (void *fd_ptr, const void *buf, size_t len)
+{
+  int fd = *(int *)fd_ptr;
+  return xwrite (fd, buf, len);
+}
+
+/* Has one FileIn parameter. */
 int
-do_upload (const char *remote_filename)
+do_upload (const char *filename)
 {
-  XXX_NOT_IMPL (-1);
+  int err, fd, r, is_dev;
+
+  is_dev = STRPREFIX (filename, "/dev/");
+
+  if (!is_dev) CHROOT_IN;
+  fd = open (filename, O_WRONLY|O_CREAT|O_TRUNC|O_NOCTTY, 0666);
+  if (!is_dev) CHROOT_OUT;
+  if (fd == -1) {
+    err = errno;
+    r = cancel_receive ();
+    errno = err;
+    if (r != -2) reply_with_perror ("%s", filename);
+    return -1;
+  }
+
+  r = receive_file (write_cb, &fd);
+  if (r == -1) {		/* write error */
+    err = errno;
+    r = cancel_receive ();
+    errno = err;
+    if (r != -2) reply_with_error ("write error: %s", filename);
+    close (fd);
+    return -1;
+  }
+  if (r == -2) {		/* cancellation from library */
+    close (fd);
+    /* Do NOT send any error. */
+    return -1;
+  }
+
+  if (close (fd) == -1) {
+    err = errno;
+    if (r == -1)                /* if r == 0, file transfer ended already */
+      r = cancel_receive ();
+    errno = err;
+    if (r != -2)
+      reply_with_perror ("close: %s", filename);
+    return -1;
+  }
+
+  return 0;
 }
 
+/* Has one FileOut parameter. */
 int
-do_download (const char *remote_filename)
+do_download (const char *filename)
 {
-  XXX_NOT_IMPL (-1);
+  int fd, r, is_dev;
+  char buf[GUESTFS_MAX_CHUNK_SIZE];
+
+  is_dev = STRPREFIX (filename, "/dev/");
+
+  if (!is_dev) CHROOT_IN;
+  fd = open (filename, O_RDONLY);
+  if (!is_dev) CHROOT_OUT;
+  if (fd == -1) {
+    reply_with_perror ("%s", filename);
+    return -1;
+  }
+
+  /* Calculate the size of the file or device for notification messages. */
+  uint64_t total, sent = 0;
+  if (!is_dev) {
+    struct stat statbuf;
+    if (fstat (fd, &statbuf) == -1) {
+      reply_with_perror ("%s", filename);
+      close (fd);
+      return -1;
+    }
+    total = statbuf.st_size;
+  } else {
+    int64_t size = do_blockdev_getsize64 (filename);
+    if (size == -1) {
+      /* do_blockdev_getsize64 has already sent a reply. */
+      close (fd);
+      return -1;
+    }
+    total = (uint64_t) size;
+  }
+
+  /* Now we must send the reply message, before the file contents.  After
+   * this there is no opportunity in the protocol to send any error
+   * message back.  Instead we can only cancel the transfer.
+   */
+  reply (NULL, NULL);
+
+  while ((r = read (fd, buf, sizeof buf)) > 0) {
+    if (send_file_write (buf, r) < 0) {
+      close (fd);
+      return -1;
+    }
+
+    sent += r;
+    notify_progress (sent, total);
+  }
+
+  if (r == -1) {
+    perror (filename);
+    send_file_end (1);		/* Cancel. */
+    close (fd);
+    return -1;
+  }
+
+  if (close (fd) == -1) {
+    perror (filename);
+    send_file_end (1);		/* Cancel. */
+    return -1;
+  }
+
+  if (send_file_end (0))	/* Normal end of file. */
+    return -1;
+
+  return 0;
 }