+/* virt-ls
+ * Copyright (C) 2010 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
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <fcntl.h>
+#include <assert.h>
+
+#include "progname.h"
+
+#include "guestfs.h"
+#include "options.h"
+
+/* Currently open libguestfs handle. */
+guestfs_h *g;
+
+int read_only = 1;
+int verbose = 0;
+int keys_from_stdin = 0;
+int echo_keys = 0;
+const char *libvirt_uri = NULL;
+int inspector = 1;
+
+static inline char *
+bad_cast (char const *s)
+{
+ return (char *) s;
+}
+
+static void __attribute__((noreturn))
+usage (int status)
+{
+ if (status != EXIT_SUCCESS)
+ fprintf (stderr, _("Try `%s --help' for more information.\n"),
+ program_name);
+ else {
+ fprintf (stdout,
+ _("%s: list files in a virtual machine\n"
+ "Copyright (C) 2010 Red Hat Inc.\n"
+ "Usage:\n"
+ " %s [--options] -d domname file [dir ...]\n"
+ " %s [--options] -a disk.img [-a disk.img ...] dir [dir ...]\n"
+ "Options:\n"
+ " -a|--add image Add image\n"
+ " -c|--connect uri Specify libvirt URI for -d option\n"
+ " -d|--domain guest Add disks from libvirt guest\n"
+ " --echo-keys Don't turn off echo for passphrases\n"
+ " --format[=raw|..] Force disk format for -a option\n"
+ " --help Display brief help\n"
+ " --keys-from-stdin Read passphrases from stdin\n"
+ " -l|--long Long listing\n"
+ " -R|--recursive Recursive listing\n"
+ " -v|--verbose Verbose messages\n"
+ " -V|--version Display version and exit\n"
+ " -x Trace libguestfs API calls\n"
+ "For more information, see the manpage %s(1).\n"),
+ program_name, program_name, program_name,
+ program_name);
+ }
+ exit (status);
+}
+
+int
+main (int argc, char *argv[])
+{
+ /* Set global program name that is not polluted with libtool artifacts. */
+ set_program_name (argv[0]);
+
+ setlocale (LC_ALL, "");
+ bindtextdomain (PACKAGE, LOCALEBASEDIR);
+ textdomain (PACKAGE);
+
+ enum { HELP_OPTION = CHAR_MAX + 1 };
+
+ static const char *options = "a:c:d:lRvVx";
+ static const struct option long_options[] = {
+ { "add", 1, 0, 'a' },
+ { "connect", 1, 0, 'c' },
+ { "domain", 1, 0, 'd' },
+ { "echo-keys", 0, 0, 0 },
+ { "format", 2, 0, 0 },
+ { "help", 0, 0, HELP_OPTION },
+ { "keys-from-stdin", 0, 0, 0 },
+ { "long", 0, 0, 'l' },
+ { "recursive", 0, 0, 'R' },
+ { "verbose", 0, 0, 'v' },
+ { "version", 0, 0, 'V' },
+ { 0, 0, 0, 0 }
+ };
+ struct drv *drvs = NULL;
+ struct drv *drv;
+ char *p, *file = NULL;
+ const char *format = NULL;
+ int c;
+ int option_index;
+ int next_prepared_drive = 1;
+ char mode = 0;
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ fprintf (stderr, _("guestfs_create: failed to create handle\n"));
+ exit (EXIT_FAILURE);
+ }
+
+ argv[0] = bad_cast (program_name);
+
+ for (;;) {
+ c = getopt_long (argc, argv, options, long_options, &option_index);
+ if (c == -1) break;
+
+ switch (c) {
+ case 0: /* options which are long only */
+ if (STREQ (long_options[option_index].name, "keys-from-stdin")) {
+ keys_from_stdin = 1;
+ } else if (STREQ (long_options[option_index].name, "echo-keys")) {
+ echo_keys = 1;
+ } else if (STREQ (long_options[option_index].name, "format")) {
+ if (!optarg || STREQ (optarg, ""))
+ format = NULL;
+ else
+ format = optarg;
+ } else {
+ fprintf (stderr, _("%s: unknown long option: %s (%d)\n"),
+ program_name, long_options[option_index].name, option_index);
+ exit (EXIT_FAILURE);
+ }
+ break;
+
+ case 'a':
+ OPTION_a;
+ break;
+
+ case 'c':
+ OPTION_c;
+ break;
+
+ case 'd':
+ OPTION_d;
+ break;
+
+ case 'h':
+ usage (EXIT_SUCCESS);
+
+ case 'l':
+ mode = 'l';
+ break;
+
+ case 'R':
+ mode = 'R';
+ break;
+
+ case 'v':
+ OPTION_v;
+ break;
+
+ case 'V':
+ OPTION_V;
+ break;
+
+ case 'x':
+ OPTION_x;
+ break;
+
+ case HELP_OPTION:
+ usage (EXIT_SUCCESS);
+
+ default:
+ usage (EXIT_FAILURE);
+ }
+ }
+
+ /* Old-style syntax? There were no -a or -d options in the old
+ * virt-ls which is how we detect this.
+ */
+ if (drvs == NULL) {
+ /* argc - 1 because last parameter is the single directory name. */
+ while (optind < argc - 1) {
+ if (strchr (argv[optind], '/') ||
+ access (argv[optind], F_OK) == 0) { /* simulate -a option */
+ drv = malloc (sizeof (struct drv));
+ if (!drv) {
+ perror ("malloc");
+ exit (EXIT_FAILURE);
+ }
+ drv->type = drv_a;
+ drv->a.filename = argv[optind];
+ drv->a.format = NULL;
+ drv->next = drvs;
+ drvs = drv;
+ } else { /* simulate -d option */
+ drv = malloc (sizeof (struct drv));
+ if (!drv) {
+ perror ("malloc");
+ exit (EXIT_FAILURE);
+ }
+ drv->type = drv_d;
+ drv->d.guest = argv[optind];
+ drv->next = drvs;
+ drvs = drv;
+ }
+
+ optind++;
+ }
+ }
+
+ /* These are really constants, but they have to be variables for the
+ * options parsing code. Assert here that they have known-good
+ * values.
+ */
+ assert (read_only == 1);
+ assert (inspector == 1);
+
+ /* User must specify at least one directory name on the command line. */
+ if (optind >= argc || argc - optind < 1)
+ usage (EXIT_FAILURE);
+
+ /* User must have specified some drives. */
+ if (drvs == NULL)
+ usage (EXIT_FAILURE);
+
+ /* Add drives, inspect and mount. Note that inspector is always true,
+ * and there is no -m option.
+ */
+ add_drives (drvs, 'a');
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ inspect_mount ();
+
+ /* Free up data structures, no longer needed after this point. */
+ free_drives (drvs);
+
+ unsigned errors = 0;
+
+ while (optind < argc) {
+ const char *dir = argv[optind];
+
+ if (mode == 0) {
+ char **lines;
+ size_t i;
+
+ if ((lines = guestfs_ls (g, dir)) == NULL)
+ errors++;
+ else {
+ for (i = 0; lines[i] != NULL; ++i) {
+ printf ("%s\n", lines[i]);
+ free (lines[i]);
+ }
+ free (lines);
+ }
+ }
+ else if (mode == 'l') {
+ char *out;
+ size_t i;
+
+ if ((out = guestfs_ll (g, dir)) == NULL)
+ errors++;
+ else {
+ printf ("%s", out);
+ free (out);
+ }
+ }
+ else if (mode == 'R') {
+ /* This is TMP_TEMPLATE_ON_STACK expanded from fish.h. */
+ const char *tmpdir = guestfs_tmpdir ();
+ char tmpfile[strlen (tmpdir) + 32];
+ sprintf (tmpfile, "%s/virtlsXXXXXX", tmpdir);
+
+ int fd = mkstemp (tmpfile);
+ if (fd == -1) {
+ perror ("mkstemp");
+ exit (EXIT_FAILURE);
+ }
+
+ char buf[BUFSIZ]; /* also used below */
+ snprintf (buf, sizeof buf, "/dev/fd/%d", fd);
+
+ if (guestfs_find0 (g, dir, buf) == -1)
+ errors++;
+ else {
+ if (close (fd) == -1) {
+ perror (tmpfile);
+ exit (EXIT_FAILURE);
+ }
+
+ /* The output of find0 is a \0-separated file. Turn each \0 into
+ * a \n character.
+ */
+ fd = open (tmpfile, O_RDONLY);
+ if (fd == -1) {
+ perror (tmpfile);
+ exit (EXIT_FAILURE);
+ }
+
+ ssize_t r;
+ while ((r = read (fd, buf, sizeof buf)) > 0) {
+ size_t i;
+ for (i = 0; i < (size_t) r; ++i)
+ if (buf[i] == '\0')
+ buf[i] = '\n';
+
+ size_t n = r;
+ while (n > 0) {
+ r = write (1, buf, n);
+ if (r == -1) {
+ perror ("write");
+ exit (EXIT_FAILURE);
+ }
+ n -= r;
+ }
+ }
+
+ if (r == -1 || close (fd) == -1) {
+ perror (tmpfile);
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ unlink (tmpfile);
+ }
+ optind++;
+ }
+
+ guestfs_close (g);
+
+ exit (errors == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
+}
git.annexia.org / libguestfs.git / commitdiff