--- /dev/null
+// $Id: vclone.c 2494 2007-02-11 00:45:04Z dhozac $ --*- c -*--
+
+// Copyright (C) 2007 Daniel Hokka Zakrisson
+//
+// 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; version 2 of the License.
+//
+// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "util.h"
+#include "vserver.h"
+
+#include "lib_internal/pathinfo.h"
+#include "lib_internal/unify.h"
+
+#include <unistd.h>
+#include <getopt.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <errno.h>
+#include <assert.h>
+#include <utime.h>
+#include <libgen.h>
+#include <sys/param.h>
+
+#define ENSC_WRAPPERS_PREFIX "vclone: "
+#define ENSC_WRAPPERS_UNISTD 1
+#define ENSC_WRAPPERS_FCNTL 1
+#define ENSC_WRAPPERS_DIRENT 1
+#include <wrappers.h>
+
+#define CMD_HELP 0x8000
+#define CMD_VERSION 0x8001
+
+struct WalkdownInfo
+{
+ PathInfo state;
+ PathInfo src;
+ PathInfo dst;
+};
+
+struct Arguments {
+ unsigned int verbosity;
+};
+
+static struct WalkdownInfo global_info;
+static struct Arguments const * global_args;
+
+int wrapper_exit_code = 1;
+
+struct option const
+CMDLINE_OPTIONS[] = {
+ { "help", no_argument, 0, CMD_HELP },
+ { "version", no_argument, 0, CMD_VERSION },
+ { 0,0,0,0 }
+};
+
+
+static void
+showHelp(int fd, char const *cmd, int res)
+{
+ VSERVER_DECLARE_CMD(cmd);
+
+ WRITE_MSG(fd, "Usage:\n ");
+ WRITE_STR(fd, cmd);
+ WRITE_MSG(fd,
+ " <source> <absolute path to destination>\n\n"
+ "Please report bugs to " PACKAGE_BUGREPORT "\n");
+ exit(res);
+}
+
+static void
+showVersion()
+{
+ WRITE_MSG(1,
+ "vclone " VERSION " -- clones a guest\n"
+ "This program is part of " PACKAGE_STRING "\n\n"
+ "Copyright (C) 2007 Daniel Hokka Zakrisson\n"
+ VERSION_COPYRIGHT_DISCLAIMER);
+ exit(0);
+}
+
+int Global_getVerbosity() {
+ return global_args->verbosity;
+}
+
+bool Global_doRenew() {
+ return true;
+}
+
+#include "vserver-visitdir.hc"
+
+static uint64_t
+visitDirEntry(struct dirent const *ent)
+{
+ char const * dirname = ent->d_name;
+ if (isDotfile(dirname)) return 0;
+
+ uint64_t res = 1;
+ PathInfo src_path = global_info.state;
+ PathInfo src_d_path = {
+ .d = dirname,
+ .l = strlen(dirname)
+ };
+ char path_buf[ENSC_PI_APPSZ(src_path, src_d_path)];
+ struct stat f_stat = { .st_dev = 0 };
+
+ PathInfo_append(&src_path, &src_d_path, path_buf);
+
+
+ if (lstat(dirname, &f_stat)==-1)
+ perror(ENSC_WRAPPERS_PREFIX "lstat()");
+ else {
+ PathInfo dst_path = global_info.dst;
+ char dst_path_buf[ENSC_PI_APPSZ(dst_path, src_path)];
+
+ PathInfo_append(&dst_path, &src_path, dst_path_buf);
+
+ /* skip files that already exist */
+ if (access(dst_path.d, F_OK)!=-1)
+ res = 0;
+ else if (S_ISREG(f_stat.st_mode) && Unify_isIUnlinkable(src_d_path.d) == unifyBUSY) {
+ Elink(src_d_path.d, dst_path.d);
+ res = 0;
+ }
+ else {
+ if (!Unify_copy(src_d_path.d, &f_stat, dst_path.d)) {
+ perror(ENSC_WRAPPERS_PREFIX "Unify_copy()");
+ exit(wrapper_exit_code);
+ }
+ res = 0;
+ }
+ if (S_ISDIR(f_stat.st_mode))
+ res = visitDir(dirname, &f_stat);
+ }
+
+ return res;
+}
+
+int main(int argc, char *argv[])
+{
+ struct Arguments args = {
+ .verbosity = 0,
+ };
+ uint64_t res;
+ int num_args;
+
+ global_args = &args;
+ while (1) {
+ int c = getopt_long(argc, argv, "+",
+ CMDLINE_OPTIONS, 0);
+ if (c==-1) break;
+
+ switch (c) {
+ case CMD_HELP : showHelp(1, argv[0], 0);
+ case CMD_VERSION : showVersion();
+ default :
+ WRITE_MSG(2, "Try '");
+ WRITE_STR(2, argv[0]);
+ WRITE_MSG(2, " --help' for more information.\n");
+ return EXIT_FAILURE;
+ break;
+ }
+ }
+
+ num_args = argc - optind;
+ if (num_args < 1) {
+ WRITE_MSG(2, "Source is missing; try '");
+ WRITE_STR(2, argv[0]);
+ WRITE_MSG(2, " --help' for more information.\n");
+ return EXIT_FAILURE;
+ }
+ else if (num_args < 2) {
+ WRITE_MSG(2, "Destination is missing; try '");
+ WRITE_STR(2, argv[0]);
+ WRITE_MSG(2, " --help' for more information.\n");
+ return EXIT_FAILURE;
+ }
+ else if (num_args > 2) {
+ WRITE_MSG(2, "Too many arguments; try '");
+ WRITE_STR(2, argv[0]);
+ WRITE_MSG(2, " --help' for more information.\n");
+ return EXIT_FAILURE;
+ }
+ else if (*argv[optind+1] != '/') {
+ WRITE_MSG(2, "The destination must be an absolute path; try '");
+ WRITE_STR(2, argv[0]);
+ WRITE_MSG(2, " --help' for more information.\n");
+ return EXIT_FAILURE;
+ }
+ ENSC_PI_SETSTR(global_info.src, argv[optind]);
+ ENSC_PI_SETSTR(global_info.dst, argv[optind+1]);
+
+ if (global_args->verbosity>3)
+ WRITE_MSG(1, "Starting to traverse directories...\n");
+
+ Echdir(global_info.src.d);
+ res = visitDir("/", 0);
+
+ return res>0 ? 1 : 0;
+}
git://git.onelab.eu / util-vserver.git / blobdiff