mirror of
https://github.com/libguestfs/libguestfs.git
synced 2026-03-21 22:53:37 +00:00
00202b9c29
This commit adds a tests/xml directory, and an LD_PRELOAD module which can fake arbitrary libvirt XML from an external file (and is therefore a much more flexible test than using the libvirt test:// driver alone). Also added is one regression test for: https://bugzilla.redhat.com/show_bug.cgi?id=701814 Loading the given libvirt XML using Sys::Guestfs::Lib::open_guest used to fail with the error: format parameter is empty or contains disallowed characters at /home/rjones/d/libguestfs/perl/blib/lib/Sys/Guestfs/Lib.pm line 256. Thanks to Tom Horsley for supplying the test data.
88 lines
1.9 KiB
C
88 lines
1.9 KiB
C
/* libguestfs
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* Copyright (C) 2012 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <libvirt/libvirt.h>
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char *
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virDomainGetXMLDesc (virDomainPtr dom, unsigned int flags)
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{
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const char *path;
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int fd;
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struct stat statbuf;
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char *buf, *p;
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size_t n;
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ssize_t r;
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path = getenv ("FAKE_LIBVIRT_XML");
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if (!path) {
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fprintf (stderr, "environment variable FAKE_LIBVIRT_XML is not set\n");
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_exit (1);
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}
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fprintf (stderr,
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"fake_libvirt_xml: returning fake libvirt XML from %s\n", path);
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fd = open (path, O_RDONLY | O_CLOEXEC);
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if (fd == -1) {
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perror (path);
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_exit (1);
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}
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if (fstat (fd, &statbuf) == -1) {
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perror ("fstat");
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_exit (1);
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}
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buf = malloc (statbuf.st_size + 1);
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if (buf == NULL) {
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perror ("malloc");
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_exit (1);
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}
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for (n = 0, p = buf; n < statbuf.st_size; ++n) {
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r = read (fd, p, statbuf.st_size - n);
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if (r == -1) {
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perror ("read");
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_exit (1);
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}
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if (r == 0)
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break;
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n += r;
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p += r;
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}
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*p = '\0';
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if (close (fd) == -1) {
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perror ("close");
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_exit (1);
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}
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return buf; /* caller frees */
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}
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