コード例 #1
0
ファイル: ad_mv.c プロジェクト: ennarr/debian-netatalk
static int do_move(const char *from, const char *to)
{
    struct stat sb;
    int ask, ch, first;

    /*
     * Check access.  If interactive and file exists, ask user if it
     * should be replaced.  Otherwise if file exists but isn't writable
     * make sure the user wants to clobber it.
     */
    if (!fflg && !access(to, F_OK)) {

        /* prompt only if source exist */
        if (lstat(from, &sb) == -1) {
            SLOG("%s: %s", from, strerror(errno));
            return (1);
        }

        ask = 0;
        if (nflg) {
            if (vflg)
                printf("%s not overwritten\n", to);
            return (0);
        } else if (iflg) {
            (void)fprintf(stderr, "overwrite %s? (y/n [n]) ", to);
            ask = 1;
        } else if (access(to, W_OK) && !stat(to, &sb)) {
            (void)fprintf(stderr, "override for %s? (y/n [n]) ", to);
            ask = 1;
        }
        if (ask) {
            first = ch = getchar();
            while (ch != '\n' && ch != EOF)
                ch = getchar();
            if (first != 'y' && first != 'Y') {
                (void)fprintf(stderr, "not overwritten\n");
                return (0);
            }
        }
    }

    int mustcopy = 0;
    /* 
     * Besides the usual EXDEV we copy instead of moving if
     * 1) source AFP volume != dest AFP volume
     * 2) either source or dest isn't even an AFP volume
     */
    if (!svolume.vol->v_path
        || !dvolume.vol->v_path
        || strcmp(svolume.vol->v_path, dvolume.vol->v_path) != 0)
        mustcopy = 1;
    
    cnid_t cnid = 0;
    if (!mustcopy) {
        if ((cnid = cnid_for_path(&svolume, from, &did)) == CNID_INVALID) {
            SLOG("Couldn't resolve CNID for %s", from);
            return -1;
        }

        if (stat(from, &sb) != 0) {
            SLOG("Cant stat %s: %s", to, strerror(errno));
            return -1;
        }

        if (rename(from, to) != 0) {
            if (errno == EXDEV) {
                mustcopy = 1;
                char path[MAXPATHLEN];

                /*
                 * If the source is a symbolic link and is on another
                 * filesystem, it can be recreated at the destination.
                 */
                if (lstat(from, &sb) == -1) {
                    SLOG("%s: %s", from, strerror(errno));
                    return (-1);
                }
                if (!S_ISLNK(sb.st_mode)) {
                    /* Can't mv(1) a mount point. */
                    if (realpath(from, path) == NULL) {
                        SLOG("cannot resolve %s: %s: %s", from, path, strerror(errno));
                        return (1);
                    }
                }
            } else { /* != EXDEV */
                SLOG("rename %s to %s: %s", from, to, strerror(errno));
                return (1);
            }
        } /* rename != 0*/
        
        switch (sb.st_mode & S_IFMT) {
        case S_IFREG:
            if (dvolume.vol->vfs->vfs_renamefile(dvolume.vol, -1, from, to) != 0) {
                SLOG("Error moving adouble file for %s", from);
                return -1;
            }
            break;
        case S_IFDIR:
            break;
        default:
            SLOG("Not a file or dir: %s", from);
            return -1;
        }
    
        /* get CNID of new parent dir */
        cnid_t newpdid, newdid;
        if ((newdid = cnid_for_paths_parent(&dvolume, to, &newpdid)) == CNID_INVALID) {
            SLOG("Couldn't resolve CNID for parent of %s", to);
            return -1;
        }

        if (stat(to, &sb) != 0) {
            SLOG("Cant stat %s: %s", to, strerror(errno));
            return 1;
        }

        char *p = strdup(to);
        char *name = basename(p);
        if (cnid_update(dvolume.vol->v_cdb, cnid, &sb, newdid, name, strlen(name)) != 0) {
            SLOG("Cant update CNID for: %s", to);
            return 1;
        }
        free(p);

        struct adouble ad;
        ad_init(&ad, dvolume.vol);
        if (ad_open(&ad, to, S_ISDIR(sb.st_mode) ? (ADFLAGS_DIR | ADFLAGS_HF | ADFLAGS_RDWR) : ADFLAGS_HF | ADFLAGS_RDWR) != 0) {
            SLOG("Error opening adouble for: %s", to);
            return 1;
        }
        ad_setid(&ad, sb.st_dev, sb.st_ino, cnid, newdid, dvolume.db_stamp);
        ad_flush(&ad);
        ad_close(&ad, ADFLAGS_HF);

        if (vflg)
            printf("%s -> %s\n", from, to);
        return (0);
    }
    
    if (mustcopy)
        return copy(from, to);

    /* If we get here it's an error */
    return -1;
}
コード例 #2
0
ファイル: ad_cp.c プロジェクト: okket/netatalk
static int copy(const char *path,
                const struct stat *statp,
                int tflag,
                struct FTW *ftw)
{
    static int base = 0;

    struct stat to_stat;
    int dne;
    size_t nlen;
    const char *p;
    char *target_mid;

    if (alarmed)
        return -1;

    /* This currently doesn't work with "." */
    if (strcmp(path, ".") == 0) {
        ERROR("\".\" not supported");
    }
    const char *dir = strrchr(path, '/');
    if (dir == NULL)
        dir = path;
    else
        dir++;
    if (check_netatalk_dirs(dir) != NULL)
        return FTW_SKIP_SUBTREE;

    /*
     * If we are in case (2) above, we need to append the
     * source name to the target name.
     */
    if (type != FILE_TO_FILE) {
        /*
         * Need to remember the roots of traversals to create
         * correct pathnames.  If there's a directory being
         * copied to a non-existent directory, e.g.
         *     cp -R a/dir noexist
         * the resulting path name should be noexist/foo, not
         * noexist/dir/foo (where foo is a file in dir), which
         * is the case where the target exists.
         *
         * Also, check for "..".  This is for correct path
         * concatenation for paths ending in "..", e.g.
         *     cp -R .. /tmp
         * Paths ending in ".." are changed to ".".  This is
         * tricky, but seems the easiest way to fix the problem.
         *
         * XXX
         * Since the first level MUST be FTS_ROOTLEVEL, base
         * is always initialized.
         */
        if (ftw->level == 0) {
            if (type != DIR_TO_DNE) {
                base = ftw->base;

                if (strcmp(&path[base], "..") == 0)
                    base += 1;
            } else
                base = strlen(path);
        }

        p = &path[base];
        nlen = strlen(path) - base;
        target_mid = to.target_end;
        if (*p != '/' && target_mid[-1] != '/')
            *target_mid++ = '/';
        *target_mid = 0;
        if (target_mid - to.p_path + nlen >= PATH_MAX) {
            SLOG("%s%s: name too long (not copied)", to.p_path, p);
            badcp = rval = 1;
            return 0;
        }
        (void)strncat(target_mid, p, nlen);
        to.p_end = target_mid + nlen;
        *to.p_end = 0;
        STRIP_TRAILING_SLASH(to);
    }

    /* Not an error but need to remember it happened */
    if (stat(to.p_path, &to_stat) == -1)
        dne = 1;
    else {
        if (to_stat.st_dev == statp->st_dev &&
            to_stat.st_ino == statp->st_ino) {
            SLOG("%s and %s are identical (not copied).", to.p_path, path);
            badcp = rval = 1;
            if (S_ISDIR(statp->st_mode))
                /* without using glibc extension FTW_ACTIONRETVAL cant handle this */
                return FTW_SKIP_SUBTREE;
            return 0;
        }
        if (!S_ISDIR(statp->st_mode) &&
            S_ISDIR(to_stat.st_mode)) {
            SLOG("cannot overwrite directory %s with "
                 "non-directory %s",
                 to.p_path, path);
            badcp = rval = 1;
            return 0;
        }
        dne = 0;
    }

    /* Convert basename to appropiate volume encoding */
    if (dvolume.volinfo.v_path) {
        if ((convert_dots_encoding(&svolume, &dvolume, to.p_path, MAXPATHLEN)) == -1) {
            SLOG("Error converting name for %s", to.p_path);
            badcp = rval = 1;
            return -1;
        }
    }

    switch (statp->st_mode & S_IFMT) {
    case S_IFLNK:
        if (ftw_copy_link(ftw, path, statp, !dne))
            badcp = rval = 1;
        break;
    case S_IFDIR:
        if (!Rflag) {
            SLOG("%s is a directory", path);
            badcp = rval = 1;
            return -1;
        }
        /*
         * If the directory doesn't exist, create the new
         * one with the from file mode plus owner RWX bits,
         * modified by the umask.  Trade-off between being
         * able to write the directory (if from directory is
         * 555) and not causing a permissions race.  If the
         * umask blocks owner writes, we fail..
         */
        if (dne) {
            if (mkdir(to.p_path, statp->st_mode | S_IRWXU) < 0)
                ERROR("mkdir: %s: %s", to.p_path, strerror(errno));
        } else if (!S_ISDIR(to_stat.st_mode)) {
            errno = ENOTDIR;
            ERROR("%s", to.p_path);
        }

        /* Create ad dir and copy ".Parent" */
        if (dvolume.volinfo.v_path && dvolume.volinfo.v_adouble == AD_VERSION2) {

            /* Create ".AppleDouble" dir */
            mode_t omask = umask(0);
            bstring addir = bfromcstr(to.p_path);
            bcatcstr(addir, "/.AppleDouble");
            mkdir(cfrombstr(addir), 02777);
            bdestroy(addir);

            if (svolume.volinfo.v_path && svolume.volinfo.v_adouble == AD_VERSION2) {
                /* copy ".Parent" file */
                if (dvolume.volume.vfs->vfs_copyfile(&dvolume.volume, -1, path, to.p_path)) {
                    SLOG("Error copying adouble for %s -> %s", path, to.p_path);
                    badcp = rval = 1;
                    break;
                }
            }

            /* Get CNID of Parent and add new childir to CNID database */
            ppdid = pdid;
            if ((did = cnid_for_path(&dvolume, to.p_path, &pdid)) == CNID_INVALID) {
                SLOG("Error resolving CNID for %s", to.p_path);
                badcp = rval = 1;
                return -1;
            }

            struct adouble ad;
            struct stat st;
            if (lstat(to.p_path, &st) != 0) {
                badcp = rval = 1;
                break;
            }
            ad_init(&ad, dvolume.volinfo.v_adouble, dvolume.volinfo.v_ad_options);
            if (ad_open_metadata(to.p_path, ADFLAGS_DIR, O_RDWR | O_CREAT, &ad) != 0) {
                ERROR("Error opening adouble for: %s", to.p_path);
            }
            ad_setid( &ad, st.st_dev, st.st_ino, did, pdid, dvolume.db_stamp);
            ad_setname(&ad, utompath(&dvolume.volinfo, basename(to.p_path)));
            ad_setdate(&ad, AD_DATE_CREATE | AD_DATE_UNIX, st.st_mtime);
            ad_setdate(&ad, AD_DATE_MODIFY | AD_DATE_UNIX, st.st_mtime);
            ad_setdate(&ad, AD_DATE_ACCESS | AD_DATE_UNIX, st.st_mtime);
            ad_setdate(&ad, AD_DATE_BACKUP, AD_DATE_START);
            ad_flush(&ad);
            ad_close_metadata(&ad);

            umask(omask);
        }

        if (pflag) {
            if (setfile(statp, -1))
                rval = 1;
#if 0
            if (preserve_dir_acls(statp, curr->fts_accpath, to.p_path) != 0)
                rval = 1;
#endif
        }
        break;

    case S_IFBLK:
    case S_IFCHR:
        SLOG("%s is a device file (not copied).", path);
        break;
    case S_IFSOCK:
        SLOG("%s is a socket (not copied).", path);
        break;
    case S_IFIFO:
        SLOG("%s is a FIFO (not copied).", path);
        break;
    default:
        if (ftw_copy_file(ftw, path, statp, dne))
            badcp = rval = 1;

        if (dvolume.volinfo.v_path && dvolume.volinfo.v_adouble == AD_VERSION2) {

            mode_t omask = umask(0);
            if (svolume.volinfo.v_path && svolume.volinfo.v_adouble == AD_VERSION2) {
                /* copy ad-file */
                if (dvolume.volume.vfs->vfs_copyfile(&dvolume.volume, -1, path, to.p_path)) {
                    SLOG("Error copying adouble for %s -> %s", path, to.p_path);
                    badcp = rval = 1;
                    break;
                }
            }

            /* Get CNID of Parent and add new childir to CNID database */
            pdid = did;
            cnid_t cnid;
            if ((cnid = cnid_for_path(&dvolume, to.p_path, &did)) == CNID_INVALID) {
                SLOG("Error resolving CNID for %s", to.p_path);
                badcp = rval = 1;
                return -1;
            }

            struct adouble ad;
            struct stat st;
            if (lstat(to.p_path, &st) != 0) {
                badcp = rval = 1;
                break;
            }
            ad_init(&ad, dvolume.volinfo.v_adouble, dvolume.volinfo.v_ad_options);
            if (ad_open_metadata(to.p_path, 0, O_RDWR | O_CREAT, &ad) != 0) {
                ERROR("Error opening adouble for: %s", to.p_path);
            }
            ad_setid( &ad, st.st_dev, st.st_ino, cnid, did, dvolume.db_stamp);
            ad_setname(&ad, utompath(&dvolume.volinfo, basename(to.p_path)));
            ad_setdate(&ad, AD_DATE_CREATE | AD_DATE_UNIX, st.st_mtime);
            ad_setdate(&ad, AD_DATE_MODIFY | AD_DATE_UNIX, st.st_mtime);
            ad_setdate(&ad, AD_DATE_ACCESS | AD_DATE_UNIX, st.st_mtime);
            ad_setdate(&ad, AD_DATE_BACKUP, AD_DATE_START);
            ad_flush(&ad);
            ad_close_metadata(&ad);
            umask(omask);
        }
        break;
    }
    if (vflag && !badcp)
        (void)printf("%s -> %s\n", path, to.p_path);

    return 0;
}