On Wed, May 06, 2015 at 08:42:09AM +0800, fu lirong wrote:
(1) make quickcheck
works well ,after the command the terminal shows:
===== TEST FINISHED OK =====
That's good.
(2) what your program does ( I executed ./autogen.sh 、
./configure 、
make 、 make check as I mentioned before , when I execute make check ,there
is something wrong and I ignored it . I started to run a C program )
a. I copy the code in prog.c (a C program I made ) under libguestfs-1.28.1
,and the code is :
/* Example showing how to create a disk image. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <guestfs.h>
int
main (int argc, char *argv[])
{
guestfs_h *g;
size_t i;
g = guestfs_create ();
if (g == NULL) {
perror ("failed to create libguestfs handle");
exit (EXIT_FAILURE);
}
/* Set the trace flag so that we can see each libguestfs call. */
guestfs_set_trace (g, 1);
/* Create a raw-format sparse disk image, 512 MB in size. */
if (guestfs_disk_create (g, "disk.img", "raw",
UINT64_C(512)*1024*1024,
-1) == -1)
exit (EXIT_FAILURE);
/* Add the disk image to libguestfs. */
if (guestfs_add_drive_opts (g, "disk.img",
GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", /* raw format */
GUESTFS_ADD_DRIVE_OPTS_READONLY, 0, /* for write */
-1) /* this marks end of optional arguments */
== -1)
exit (EXIT_FAILURE);
/* Run the libguestfs back-end. */
if (guestfs_launch (g) == -1)
exit (EXIT_FAILURE);
/* Get the list of devices. Because we only added one drive
* above, we expect that this list should contain a single
* element.
*/
char **devices = guestfs_list_devices (g);
if (devices == NULL)
exit (EXIT_FAILURE);
if (devices[0] == NULL || devices[1] != NULL) {
fprintf (stderr, "error: expected a single device from list-devices\n");
exit (EXIT_FAILURE);
}
/* Partition the disk as one single MBR partition. */
if (guestfs_part_disk (g, devices[0], "mbr") == -1)
exit (EXIT_FAILURE);
/* Get the list of partitions. We expect a single element, which
* is the partition we have just created.
*/
char **partitions = guestfs_list_partitions (g);
if (partitions == NULL)
exit (EXIT_FAILURE);
if (partitions[0] == NULL || partitions[1] != NULL) {
fprintf (stderr, "error: expected a single partition from
list-partitions\n");
exit (EXIT_FAILURE);
}
/* Create a filesystem on the partition. */
if (guestfs_mkfs (g, "ext4", partitions[0]) == -1)
exit (EXIT_FAILURE);
/* Now mount the filesystem so that we can add files. */
if (guestfs_mount (g, partitions[0], "/") == -1)
exit (EXIT_FAILURE);
/* Create some files and directories. */
if (guestfs_touch (g, "/empty") == -1)
exit (EXIT_FAILURE);
const char *message = "Hello, world\n";
if (guestfs_write (g, "/hello", message, strlen (message)) == -1)
exit (EXIT_FAILURE);
if (guestfs_mkdir (g, "/foo") == -1)
exit (EXIT_FAILURE);
/* This one uploads the local file /etc/resolv.conf into
* the disk image.
*/
if (guestfs_upload (g, "/etc/resolv.conf", "/foo/resolv.conf") ==
-1)
exit (EXIT_FAILURE);
/* Because we wrote to the disk and we want to detect write
* errors, call guestfs_shutdown. You don't need to do this:
* guestfs_close will do it implicitly.
*/
if (guestfs_shutdown (g) == -1)
exit (EXIT_FAILURE);
guestfs_close (g);
/* Free up the lists. */
for (i = 0; devices[i] != NULL; ++i)
free (devices[i]);
free (devices);
for (i = 0; partitions[i] != NULL; ++i)
free (partitions[i]);
free (partitions);
exit (EXIT_SUCCESS);
}
b. I executed cc prog.c -o prog `pkg-config libguestfs --cflags --libs`
c . I executed . /prog /var/lib/libvirt/images/vm.img (the vm.img is
the images that the KVM monitor created under /lib/libvirt/images) and
the vm virtual machine is running. after this command ,the errors appears:
libguestfs: error: aug_init: aug_init: / (flags 48): Syntax error in lens
definition: /usr/share/guestfs/guestfs_lvm_conf.aug:28.25-.40:Could not
load module Quote for Quote.do_dquote
/usr/share/guestfs/guestfs_lvm_conf.aug:28.25-.40:Undefined variable
Quote.do_dquote
/usr/share/guestfs/guestfs_lvm_conf.aug:29.31-.44:Could not load module Rx
for Rx.relinteger
/usr/share/guestfs/guestfs_lvm_conf.aug:29.31-.44:Undefined variable
Rx.relinteger
/usr/share/guestfs/guestfs_lvm_conf.aug:32.20-.23:Undefined variable int
/usr/share/guestfs/guestfs_lvm_conf.aug:40.17-.29:Undefined variable
flat_literal
It's strange because the program above doesn't call any Augeas
functions in libguestfs. Perhaps you're compiling a different
program?
Anyway, I'm pretty sure this _is_ a bug in libguestfs, owing to the
way we try to add rules to Augeas, which has been a constant source of
pain. Ask Pino about that code.
Rich.
--
Richard Jones, Virtualization Group, Red Hat
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