X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/93272700d2eb85320ddf67f3bc1281dbe402f9f9..a41a1e87182410ec6c2eeaddb0cd961ec554c404:/flist.c diff --git a/flist.c b/flist.c index 35bbed1f..1b021ef6 100644 --- a/flist.c +++ b/flist.c @@ -34,6 +34,7 @@ extern int do_progress; extern int am_root; extern int am_server; extern int am_daemon; +extern int am_sender; extern int always_checksum; extern int module_id; extern int ignore_errors; @@ -47,22 +48,22 @@ extern char *files_from; extern int filesfrom_fd; extern int one_file_system; +extern int keep_dirlinks; extern int preserve_links; extern int preserve_hard_links; extern int preserve_perms; extern int preserve_devices; extern int preserve_uid; extern int preserve_gid; -extern int preserve_times; extern int relative_paths; extern int implied_dirs; extern int copy_links; extern int copy_unsafe_links; extern int protocol_version; extern int sanitize_paths; - -extern int read_batch; -extern int write_batch; +extern int delete_excluded; +extern int orig_umask; +extern int list_only; extern struct exclude_list_struct exclude_list; extern struct exclude_list_struct server_exclude_list; @@ -72,6 +73,7 @@ int io_error; static char empty_sum[MD4_SUM_LENGTH]; static unsigned int file_struct_len; +static struct file_list *received_flist; static void clean_flist(struct file_list *flist, int strip_root, int no_dups); static void output_flist(struct file_list *flist); @@ -93,7 +95,7 @@ static int show_filelist_p(void) static void start_filelist_progress(char *kind) { rprintf(FINFO, "%s ... ", kind); - if ((verbose > 1) || do_progress) + if (verbose > 1 || do_progress) rprintf(FINFO, "\n"); rflush(FINFO); } @@ -107,7 +109,7 @@ static void emit_filelist_progress(const struct file_list *flist) static void maybe_emit_filelist_progress(const struct file_list *flist) { - if (do_progress && show_filelist_p() && ((flist->count % 100) == 0)) + if (do_progress && show_filelist_p() && (flist->count % 100) == 0) emit_filelist_progress(flist); } @@ -132,9 +134,10 @@ static void list_file_entry(struct file_struct *f) { char perms[11]; - if (!f->basename) + if (!f->basename) { /* this can happen if duplicate names were removed */ return; + } permstring(perms, f->mode); @@ -142,14 +145,16 @@ static void list_file_entry(struct file_struct *f) if (preserve_links && S_ISLNK(f->mode)) { rprintf(FINFO, "%s %11.0f %s %s -> %s\n", perms, - (double) f->length, timestring(f->modtime), + (double)f->length, timestring(f->modtime), f_name(f), f->u.link); } else #endif + { rprintf(FINFO, "%s %11.0f %s %s\n", perms, - (double) f->length, timestring(f->modtime), + (double)f->length, timestring(f->modtime), f_name(f)); + } } @@ -167,15 +172,15 @@ static void list_file_entry(struct file_struct *f) * @post @p buffer contains information about the link or the * referrent as appropriate, if they exist. **/ -int readlink_stat(const char *path, STRUCT_STAT *buffer, char *linkbuf) +static int readlink_stat(const char *path, STRUCT_STAT *buffer, char *linkbuf) { #if SUPPORT_LINKS if (copy_links) return do_stat(path, buffer); - if (do_lstat(path, buffer) == -1) + if (link_stat(path, buffer, 0) < 0) return -1; if (S_ISLNK(buffer->st_mode)) { - int l = readlink((char *) path, linkbuf, MAXPATHLEN - 1); + int l = readlink((char *)path, linkbuf, MAXPATHLEN - 1); if (l == -1) return -1; linkbuf[l] = 0; @@ -193,12 +198,19 @@ int readlink_stat(const char *path, STRUCT_STAT *buffer, char *linkbuf) #endif } -int link_stat(const char *path, STRUCT_STAT * buffer) +int link_stat(const char *path, STRUCT_STAT *buffer, int follow_dirlinks) { #if SUPPORT_LINKS if (copy_links) return do_stat(path, buffer); - return do_lstat(path, buffer); + if (do_lstat(path, buffer) < 0) + return -1; + if (follow_dirlinks && S_ISLNK(buffer->st_mode)) { + STRUCT_STAT st; + if (do_stat(path, &st) == 0 && S_ISDIR(st.st_mode)) + *buffer = st; + } + return 0; #else return do_stat(path, buffer); #endif @@ -248,7 +260,7 @@ static dev_t filesystem_dev; static void set_filesystem(char *fname) { STRUCT_STAT st; - if (link_stat(fname, &st) != 0) + if (do_stat(fname, &st) != 0) return; filesystem_dev = st.st_dev; } @@ -260,14 +272,14 @@ static int to_wire_mode(mode_t mode) if (S_ISLNK(mode) && (_S_IFLNK != 0120000)) return (mode & ~(_S_IFMT)) | 0120000; #endif - return (int) mode; + return (int)mode; } static mode_t from_wire_mode(int mode) { if ((mode & (_S_IFMT)) == 0120000 && (_S_IFLNK != 0120000)) return (mode & ~(_S_IFMT)) | _S_IFLNK; - return (mode_t) mode; + return (mode_t)mode; } @@ -283,7 +295,7 @@ static int flist_dir_len; **/ void flist_expand(struct file_list *flist) { - void *new_ptr; + struct file_struct **new_ptr; if (flist->count < flist->malloced) return; @@ -302,21 +314,17 @@ void flist_expand(struct file_list *flist) if (flist->malloced < flist->count) flist->malloced = flist->count; - if (flist->files) { - new_ptr = realloc_array(flist->files, - struct file_struct *, flist->malloced); - } else { - new_ptr = new_array(struct file_struct *, flist->malloced); - } + new_ptr = realloc_array(flist->files, struct file_struct *, + flist->malloced); if (verbose >= 2) { rprintf(FINFO, "[%s] expand file_list to %.0f bytes, did%s move\n", who_am_i(), - (double) sizeof flist->files[0] * flist->malloced, + (double)sizeof flist->files[0] * flist->malloced, (new_ptr == flist->files) ? " not" : ""); } - flist->files = (struct file_struct **) new_ptr; + flist->files = new_ptr; if (!flist->files) out_of_memory("flist_expand"); @@ -333,7 +341,7 @@ void send_file_entry(struct file_struct *file, int f, unsigned short base_flags) static uid_t uid; static gid_t gid; static char lastname[MAXPATHLEN]; - char *fname, fbuf[MAXPATHLEN]; + char fname[MAXPATHLEN]; int l1, l2; if (f == -1) @@ -351,7 +359,7 @@ void send_file_entry(struct file_struct *file, int f, unsigned short base_flags) io_write_phase = "send_file_entry"; - fname = f_name_to(file, fbuf); + f_name_to(file, fname); flags = base_flags; @@ -515,7 +523,7 @@ void send_file_entry(struct file_struct *file, int f, unsigned short base_flags) void receive_file_entry(struct file_struct **fptr, unsigned short flags, - struct file_list *flist, int f) + struct file_list *flist, int f) { static time_t modtime; static mode_t mode; @@ -525,7 +533,7 @@ void receive_file_entry(struct file_struct **fptr, unsigned short flags, static uid_t uid; static gid_t gid; static char lastname[MAXPATHLEN], *lastdir; - static int lastdir_len = -1; + static int lastdir_depth, lastdir_len = -1; char thisname[MAXPATHLEN]; unsigned int l1 = 0, l2 = 0; int alloc_len, basename_len, dirname_len, linkname_len, sum_len; @@ -564,10 +572,10 @@ void receive_file_entry(struct file_struct **fptr, unsigned short flags, strlcpy(lastname, thisname, MAXPATHLEN); - clean_fname(thisname); + clean_fname(thisname, 0); if (sanitize_paths) - sanitize_path(thisname, NULL); + sanitize_path(thisname, thisname, "", 0); if ((basename = strrchr(thisname, '/')) != NULL) { dirname_len = ++basename - thisname; /* counts future '\0' */ @@ -650,6 +658,8 @@ void receive_file_entry(struct file_struct **fptr, unsigned short flags, memcpy(bp, dirname, dirname_len - 1); bp += dirname_len; bp[-1] = '\0'; + if (sanitize_paths) + lastdir_depth = count_dir_elements(lastdir); } else if (dirname) file->dirname = dirname; @@ -665,7 +675,7 @@ void receive_file_entry(struct file_struct **fptr, unsigned short flags, file->u.link = bp; read_sbuf(f, bp, linkname_len - 1); if (sanitize_paths) - sanitize_path(bp, lastdir); + sanitize_path(bp, bp, "", lastdir_depth); bp += linkname_len; } #endif @@ -709,7 +719,6 @@ void receive_file_entry(struct file_struct **fptr, unsigned short flags, } if (!preserve_perms) { - extern int orig_umask; /* set an appropriate set of permissions based on original * permissions and umask. This emulates what GNU cp does */ file->mode &= ~orig_umask; @@ -732,8 +741,8 @@ void receive_file_entry(struct file_struct **fptr, unsigned short flags, * statting directories if we're not recursing, but this is not a very * important case. Some systems may not have d_type. **/ -struct file_struct *make_file(char *fname, - struct file_list *flist, int exclude_level) +struct file_struct *make_file(char *fname, struct file_list *flist, + int exclude_level) { static char *lastdir; static int lastdir_len = -1; @@ -754,33 +763,39 @@ struct file_struct *make_file(char *fname, rprintf(FINFO, "skipping overly long name: %s\n", fname); return NULL; } - clean_fname(thisname); + clean_fname(thisname, 0); if (sanitize_paths) - sanitize_path(thisname, NULL); + sanitize_path(thisname, thisname, "", 0); memset(sum, 0, SUM_LENGTH); if (readlink_stat(thisname, &st, linkname) != 0) { int save_errno = errno; - if (errno == ENOENT) { - enum logcode c = am_daemon && protocol_version < 28 - ? FERROR : FINFO; - /* either symlink pointing nowhere or file that - * was removed during rsync run; see if excluded - * before reporting an error */ - if (exclude_level != NO_EXCLUDES - && check_exclude_file(thisname, 0, exclude_level)) { - /* file is excluded anyway, ignore silently */ - return NULL; + /* See if file is excluded before reporting an error. */ + if (exclude_level != NO_EXCLUDES + && check_exclude_file(thisname, 0, exclude_level)) + return NULL; + if (save_errno == ENOENT) { +#if SUPPORT_LINKS + /* Avoid "vanished" error if symlink points nowhere. */ + if (copy_links && do_lstat(thisname, &st) == 0 + && S_ISLNK(st.st_mode)) { + io_error |= IOERR_GENERAL; + rprintf(FERROR, "symlink has no referent: %s\n", + full_fname(thisname)); + } else +#endif + { + enum logcode c = am_daemon && protocol_version < 28 + ? FERROR : FINFO; + io_error |= IOERR_VANISHED; + rprintf(c, "file has vanished: %s\n", + full_fname(thisname)); } - io_error |= IOERR_VANISHED; - rprintf(c, "file has vanished: %s\n", - full_fname(thisname)); - } - else { + } else { io_error |= IOERR_GENERAL; - rprintf(FERROR, "readlink %s failed: %s\n", - full_fname(thisname), strerror(save_errno)); + rsyserr(FERROR, save_errno, "readlink %s failed", + full_fname(thisname)); } return NULL; } @@ -804,8 +819,13 @@ struct file_struct *make_file(char *fname, if (check_exclude_file(thisname, S_ISDIR(st.st_mode) != 0, exclude_level)) return NULL; - if (lp_ignore_nonreadable(module_id) && access(thisname, R_OK) != 0) - return NULL; + if (lp_ignore_nonreadable(module_id)) { +#if SUPPORT_LINKS + if (!S_ISLNK(st.st_mode)) +#endif + if (access(thisname, R_OK) != 0) + return NULL; + } skip_excludes: @@ -912,6 +932,26 @@ skip_excludes: file->basedir = flist_dir; + /* This code is only used by the receiver when it is building + * a list of files for a delete pass. */ + if (keep_dirlinks && linkname_len && flist) { + STRUCT_STAT st2; + int i = flist_find(received_flist, file); + if (i >= 0 && S_ISDIR(received_flist->files[i]->mode) + && do_stat(thisname, &st2) == 0 && S_ISDIR(st2.st_mode)) { + file->modtime = st2.st_mtime; + file->length = st2.st_size; + file->mode = st2.st_mode; + file->uid = st2.st_uid; + file->gid = st2.st_gid; + file->u.link = NULL; + if (file->link_u.idev) { + pool_free(flist->hlink_pool, 0, file->link_u.idev); + file->link_u.idev = NULL; + } + } + } + if (!S_ISDIR(st.st_mode)) stats.total_size += st.st_size; @@ -924,7 +964,6 @@ void send_file_name(int f, struct file_list *flist, char *fname, { struct file_struct *file; char fbuf[MAXPATHLEN]; - extern int delete_excluded; /* f is set to -1 when calculating deletion file list */ file = make_file(fname, flist, @@ -937,9 +976,6 @@ void send_file_name(int f, struct file_list *flist, char *fname, flist_expand(flist); - if (write_batch) - file->flags |= FLAG_TOP_DIR; - if (file->basename[0]) { flist->files[flist->count++] = file; send_file_entry(file, f, base_flags); @@ -950,7 +986,11 @@ void send_file_name(int f, struct file_list *flist, char *fname, struct exclude_list_struct last_list = local_exclude_list; local_exclude_list.head = local_exclude_list.tail = NULL; send_directory(f, flist, f_name_to(file, fbuf)); - free_exclude_list(&local_exclude_list); + if (verbose > 2) { + rprintf(FINFO, "[%s] popping %sexclude list\n", + who_am_i(), local_exclude_list.debug_type); + } + clear_exclude_list(&local_exclude_list); local_exclude_list = last_list; } } @@ -967,8 +1007,7 @@ static void send_directory(int f, struct file_list *flist, char *dir) d = opendir(dir); if (!d) { io_error |= IOERR_GENERAL; - rprintf(FERROR, "opendir %s failed: %s\n", - full_fname(dir), strerror(errno)); + rsyserr(FERROR, errno, "opendir %s failed", full_fname(dir)); return; } @@ -1015,8 +1054,7 @@ static void send_directory(int f, struct file_list *flist, char *dir) } if (errno) { io_error |= IOERR_GENERAL; - rprintf(FERROR, "readdir(%s): (%d) %s\n", - dir, errno, strerror(errno)); + rsyserr(FERROR, errno, "readdir(%s)", dir); } closedir(d); @@ -1024,6 +1062,8 @@ static void send_directory(int f, struct file_list *flist, char *dir) /** + * This function is normally called by the sender, but the receiver also + * uses it to construct its own file list if --delete has been specified. * The delete_files() function in receiver.c sets f to -1 so that we just * construct the file list in memory without sending it over the wire. It * also has the side-effect of ignoring user-excludes if delete_excluded @@ -1048,11 +1088,11 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) "send_file_list"); if (f != -1) { - io_start_buffering_out(f); + io_start_buffering_out(); if (filesfrom_fd >= 0) { if (argv[0] && !push_dir(argv[0])) { - rprintf(FERROR, "push_dir %s failed: %s\n", - full_fname(argv[0]), strerror(errno)); + rsyserr(FERROR, errno, "push_dir %s failed", + full_fname(argv[0])); exit_cleanup(RERR_FILESELECT); } use_ff_fd = 1; @@ -1066,13 +1106,13 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) if (use_ff_fd) { if (read_filesfrom_line(filesfrom_fd, fname) == 0) break; - sanitize_path(fname, NULL); + sanitize_path(fname, fname, "", 0); } else { if (argc-- == 0) break; strlcpy(fname, *argv++, MAXPATHLEN); if (sanitize_paths) - sanitize_path(fname, NULL); + sanitize_path(fname, fname, "", 0); } l = strlen(fname); @@ -1086,11 +1126,11 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) } } - if (link_stat(fname, &st) != 0) { + if (link_stat(fname, &st, keep_dirlinks) != 0) { if (f != -1) { io_error |= IOERR_GENERAL; - rprintf(FERROR, "link_stat %s failed: %s\n", - full_fname(fname), strerror(errno)); + rsyserr(FERROR, errno, "link_stat %s failed", + full_fname(fname)); } continue; } @@ -1159,8 +1199,8 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) if (!push_dir(dir)) { io_error |= IOERR_GENERAL; - rprintf(FERROR, "push_dir %s failed: %s\n", - full_fname(dir), strerror(errno)); + rsyserr(FERROR, errno, "push_dir %s failed", + full_fname(dir)); continue; } @@ -1182,8 +1222,8 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) flist_dir = NULL; flist_dir_len = 0; if (!pop_dir(olddir)) { - rprintf(FERROR, "pop_dir %s failed: %s\n", - full_fname(dir), strerror(errno)); + rsyserr(FERROR, errno, "pop_dir %s failed", + full_fname(dir)); exit_cleanup(RERR_FILESELECT); } } @@ -1214,8 +1254,6 @@ struct file_list *send_file_list(int f, int argc, char *argv[]) io_end_buffering(); stats.flist_size = stats.total_written - start_write; stats.num_files = flist->count; - if (write_batch) - write_batch_flist_info(flist->count, flist->files); } if (verbose > 3) @@ -1233,7 +1271,6 @@ struct file_list *recv_file_list(int f) struct file_list *flist; unsigned short flags; int64 start_read; - extern int list_only; if (show_filelist_p()) start_filelist_progress("receiving file list"); @@ -1241,6 +1278,7 @@ struct file_list *recv_file_list(int f) start_read = stats.total_read; flist = flist_new(WITH_HLINK, "recv_file_list"); + received_flist = flist; flist->count = 0; flist->malloced = 1000; @@ -1285,13 +1323,11 @@ struct file_list *recv_file_list(int f) * protocol version 15 */ recv_uid_list(f, flist); - if (!read_batch) { - /* Recv the io_error flag */ - if (lp_ignore_errors(module_id) || ignore_errors) - read_int(f); - else - io_error |= read_int(f); - } + /* Recv the io_error flag */ + if (lp_ignore_errors(module_id) || ignore_errors) + read_int(f); + else + io_error |= read_int(f); } if (verbose > 3) @@ -1423,7 +1459,7 @@ static void clean_flist(struct file_list *flist, int strip_root, int no_dups) return; qsort(flist->files, flist->count, - sizeof flist->files[0], (int (*)()) file_compare); + sizeof flist->files[0], (int (*)())file_compare); for (i = no_dups? 0 : flist->count; i < flist->count; i++) { if (flist->files[i]->basename) { @@ -1479,7 +1515,7 @@ static void output_flist(struct file_list *flist) for (i = 0; i < flist->count; i++) { file = flist->files[i]; - if (am_root && preserve_uid) + if ((am_root || am_sender) && preserve_uid) sprintf(uidbuf, " uid=%ld", (long)file->uid); else *uidbuf = '\0'; @@ -1489,8 +1525,8 @@ static void output_flist(struct file_list *flist) *gidbuf = '\0'; rprintf(FINFO, "[%s] i=%d %s %s %s mode=0%o len=%.0f%s%s\n", who_am_i(), i, NS(file->basedir), NS(file->dirname), - NS(file->basename), (int) file->mode, - (double) file->length, uidbuf, gidbuf); + NS(file->basename), (int)file->mode, + (double)file->length, uidbuf, gidbuf); } }