Update the copyright year.
[rsync/rsync.git] / flist.c
diff --git a/flist.c b/flist.c
index c189824..2e449c0 100644 (file)
--- a/flist.c
+++ b/flist.c
@@ -4,7 +4,7 @@
  * Copyright (C) 1996 Andrew Tridgell
  * Copyright (C) 1996 Paul Mackerras
  * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
- * Copyright (C) 2002-2008 Wayne Davison
+ * Copyright (C) 2002-2009 Wayne Davison
  *
  * 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
@@ -23,6 +23,7 @@
 #include "rsync.h"
 #include "ifuncs.h"
 #include "rounding.h"
+#include "inums.h"
 #include "io.h"
 
 extern int am_root;
@@ -65,11 +66,13 @@ extern int protocol_version;
 extern int sanitize_paths;
 extern int munge_symlinks;
 extern int need_unsorted_flist;
+extern int sender_symlink_iconv;
 extern int output_needs_newline;
 extern int sender_keeps_checksum;
 extern int unsort_ndx;
 extern struct stats stats;
 extern char *filesfrom_host;
+extern char *usermap, *groupmap;
 
 extern char curr_dir[MAXPATHLEN];
 
@@ -122,7 +125,6 @@ static char tmp_sum[MAX_DIGEST_LEN];
 
 static char empty_sum[MAX_DIGEST_LEN];
 static int flist_count_offset; /* for --delete --progress */
-static int dir_count = 0;
 
 static void flist_sort_and_clean(struct file_list *flist, int strip_root);
 static void output_flist(struct file_list *flist);
@@ -320,7 +322,7 @@ static void flist_expand(struct file_list *flist, int extra)
        if (DEBUG_GTE(FLIST, 1) && flist->malloced != FLIST_START) {
                rprintf(FCLIENT, "[%s] expand file_list pointer array to %s bytes, did%s move\n",
                    who_am_i(),
-                   big_num(sizeof flist->files[0] * flist->malloced, 0),
+                   big_num(sizeof flist->files[0] * flist->malloced),
                    (new_ptr == flist->files) ? " not" : "");
        }
 
@@ -387,7 +389,11 @@ int change_pathname(struct file_struct *file, const char *dir, int dirlen)
        return 1;
 }
 
-static void send_file_entry(int f, const char *fname, struct file_struct *file, int ndx, int first_ndx)
+static void send_file_entry(int f, const char *fname, struct file_struct *file,
+#ifdef SUPPORT_LINKS
+                           const char *symlink_name, int symlink_len,
+#endif
+                           int ndx, int first_ndx)
 {
        static time_t modtime;
        static mode_t mode;
@@ -406,17 +412,29 @@ static void send_file_entry(int f, const char *fname, struct file_struct *file,
        int l1, l2;
        int xflags;
 
-       /* Initialize starting value of xflags. */
-       if (protocol_version >= 30 && S_ISDIR(file->mode)) {
-               dir_count++;
-               if (file->flags & FLAG_CONTENT_DIR)
-                       xflags = file->flags & FLAG_TOP_DIR;
-               else if (file->flags & FLAG_IMPLIED_DIR)
-                       xflags = XMIT_TOP_DIR | XMIT_NO_CONTENT_DIR;
+       /* Initialize starting value of xflags and adjust counts. */
+       if (S_ISREG(file->mode))
+               xflags = 0;
+       else if (S_ISDIR(file->mode)) {
+               stats.num_dirs++;
+               if (protocol_version >= 30) {
+                       if (file->flags & FLAG_CONTENT_DIR)
+                               xflags = file->flags & FLAG_TOP_DIR;
+                       else if (file->flags & FLAG_IMPLIED_DIR)
+                               xflags = XMIT_TOP_DIR | XMIT_NO_CONTENT_DIR;
+                       else
+                               xflags = XMIT_NO_CONTENT_DIR;
+               } else
+                       xflags = file->flags & FLAG_TOP_DIR; /* FLAG_TOP_DIR == XMIT_TOP_DIR */
+       } else {
+               if (S_ISLNK(file->mode))
+                       stats.num_symlinks++;
+               else if (IS_DEVICE(file->mode))
+                       stats.num_devices++;
                else
-                       xflags = XMIT_NO_CONTENT_DIR;
-       } else
-               xflags = file->flags & FLAG_TOP_DIR; /* FLAG_TOP_DIR == XMIT_TOP_DIR */
+                       stats.num_specials++;
+               xflags = 0;
+       }
 
        if (file->mode == mode)
                xflags |= XMIT_SAME_MODE;
@@ -483,7 +501,7 @@ static void send_file_entry(int f, const char *fname, struct file_struct *file,
                                } else if (DEBUG_GTE(HLINK, 3)) {
                                        rprintf(FINFO, "[%s] dev:inode for #%d is %s:%s\n",
                                                who_am_i(), first_ndx + ndx,
-                                               big_num(tmp_dev, 0), big_num(tmp_ino, 0));
+                                               big_num(tmp_dev), big_num(tmp_ino));
                                }
                        }
                } else {
@@ -591,11 +609,9 @@ static void send_file_entry(int f, const char *fname, struct file_struct *file,
        }
 
 #ifdef SUPPORT_LINKS
-       if (preserve_links && S_ISLNK(mode)) {
-               const char *sl = F_SYMLINK(file);
-               int len = strlen(sl);
-               write_varint30(f, len);
-               write_buf(f, sl, len);
+       if (symlink_len) {
+               write_varint30(f, symlink_len);
+               write_buf(f, symlink_name, symlink_len);
        }
 #endif
 
@@ -693,12 +709,12 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
 
                if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
                        io_error |= IOERR_GENERAL;
-                       rprintf(FERROR_XFER,
+                       rprintf(FERROR_UTF8,
                            "[%s] cannot convert filename: %s (%s)\n",
                            who_am_i(), lastname, strerror(errno));
                        outbuf.len = 0;
                }
-               outbuf.buf[outbuf.len] = '\0';
+               thisname[outbuf.len] = '\0';
        }
 #endif
 
@@ -787,7 +803,7 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
                        uid = (uid_t)read_varint(f);
                        if (xflags & XMIT_USER_NAME_FOLLOWS)
                                uid = recv_user_name(f, uid);
-                       else if (inc_recurse && am_root && !numeric_ids)
+                       else if (inc_recurse && am_root && (!numeric_ids || usermap))
                                uid = match_uid(uid);
                }
        }
@@ -799,7 +815,7 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
                        gid_flags = 0;
                        if (xflags & XMIT_GROUP_NAME_FOLLOWS)
                                gid = recv_group_name(f, gid, &gid_flags);
-                       else if (inc_recurse && (!am_root || !numeric_ids))
+                       else if (inc_recurse && (!am_root || !numeric_ids || groupmap))
                                gid = match_gid(gid, &gid_flags);
                }
        }
@@ -834,6 +850,13 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
                                linkname_len - 1);
                        overflow_exit("recv_file_entry");
                }
+#ifdef ICONV_OPTION
+               /* We don't know how much extra room we need to convert
+                * the as-yet-unread symlink data, so let's hope that a
+                * double-size buffer is plenty. */
+               if (sender_symlink_iconv)
+                       linkname_len *= 2;
+#endif
                if (munge_symlinks)
                        linkname_len += SYMLINK_PREFIX_LEN;
        }
@@ -968,14 +991,40 @@ static struct file_struct *recv_file_entry(struct file_list *flist,
                if (first_hlink_ndx >= flist->ndx_start) {
                        struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
                        memcpy(bp, F_SYMLINK(first), linkname_len);
-               } else if (munge_symlinks) {
-                       strlcpy(bp, SYMLINK_PREFIX, linkname_len);
-                       bp += SYMLINK_PREFIX_LEN;
-                       linkname_len -= SYMLINK_PREFIX_LEN;
-                       read_sbuf(f, bp, linkname_len - 1);
                } else {
-                       read_sbuf(f, bp, linkname_len - 1);
-                       if (sanitize_paths)
+                       if (munge_symlinks) {
+                               strlcpy(bp, SYMLINK_PREFIX, linkname_len);
+                               bp += SYMLINK_PREFIX_LEN;
+                               linkname_len -= SYMLINK_PREFIX_LEN;
+                       }
+#ifdef ICONV_OPTION
+                       if (sender_symlink_iconv) {
+                               xbuf outbuf, inbuf;
+
+                               alloc_len = linkname_len;
+                               linkname_len /= 2;
+
+                               /* Read the symlink data into the end of our double-sized
+                                * buffer and then convert it into the right spot. */
+                               INIT_XBUF(inbuf, bp + alloc_len - linkname_len,
+                                         linkname_len - 1, (size_t)-1);
+                               read_sbuf(f, inbuf.buf, inbuf.len);
+                               INIT_XBUF(outbuf, bp, 0, alloc_len);
+
+                               if (iconvbufs(ic_recv, &inbuf, &outbuf, 0) < 0) {
+                                       io_error |= IOERR_GENERAL;
+                                       rprintf(FERROR_XFER,
+                                           "[%s] cannot convert symlink data for: %s (%s)\n",
+                                           who_am_i(), full_fname(thisname), strerror(errno));
+                                       bp = (char*)file->basename;
+                                       *bp++ = '\0';
+                                       outbuf.len = 0;
+                               }
+                               bp[outbuf.len] = '\0';
+                       } else
+#endif
+                               read_sbuf(f, bp, linkname_len - 1);
+                       if (sanitize_paths && !munge_symlinks && *bp)
                                sanitize_path(bp, bp, "", lastdir_depth, SP_DEFAULT);
                }
        }
@@ -1113,7 +1162,7 @@ struct file_struct *make_file(const char *fname, struct file_list *flist,
                        }
                } else {
                        io_error |= IOERR_GENERAL;
-                       rsyserr(FERROR_XFER, save_errno, "readlink %s failed",
+                       rsyserr(FERROR_XFER, save_errno, "readlink_stat(%s) failed",
                                full_fname(thisname));
                }
                return NULL;
@@ -1284,25 +1333,6 @@ struct file_struct *make_file(const char *fname, struct file_list *flist,
        else if (!pool)
                F_DEPTH(file) = extra_len / EXTRA_LEN;
 
-       /* 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 save_mode = file->mode;
-               file->mode = S_IFDIR; /* Find a directory with our name. */
-               if (flist_find(dir_flist, file) >= 0
-                && x_stat(thisname, &st2, NULL) == 0 && S_ISDIR(st2.st_mode)) {
-                       file->modtime = st2.st_mtime;
-                       file->len32 = 0;
-                       file->mode = st2.st_mode;
-                       if (uid_ndx)
-                               F_OWNER(file) = st2.st_uid;
-                       if (gid_ndx)
-                               F_GROUP(file) = st2.st_gid;
-               } else
-                       file->mode = save_mode;
-       }
-
        if (basename_len == 0+1) {
                if (!pool)
                        unmake_file(file);
@@ -1313,7 +1343,7 @@ struct file_struct *make_file(const char *fname, struct file_list *flist,
                memcpy(F_SUM(file), tmp_sum, checksum_len);
 
        if (unsort_ndx)
-               F_NDX(file) = dir_count;
+               F_NDX(file) = stats.num_dirs;
 
        return file;
 }
@@ -1339,8 +1369,26 @@ static struct file_struct *send_file_name(int f, struct file_list *flist,
 
        if (f >= 0) {
                char fbuf[MAXPATHLEN];
+#ifdef SUPPORT_LINKS
+               const char *symlink_name;
+               int symlink_len;
+#ifdef ICONV_OPTION
+               char symlink_buf[MAXPATHLEN];
+#endif
+#endif
 #if defined SUPPORT_ACLS || defined SUPPORT_XATTRS
                stat_x sx;
+               init_stat_x(&sx);
+#endif
+
+#ifdef SUPPORT_LINKS
+               if (preserve_links && S_ISLNK(file->mode)) {
+                       symlink_name = F_SYMLINK(file);
+                       symlink_len = strlen(symlink_name);
+               } else {
+                       symlink_name = NULL;
+                       symlink_len = 0;
+               }
 #endif
 
 #ifdef ICONV_OPTION
@@ -1355,7 +1403,7 @@ static struct file_struct *send_file_name(int f, struct file_list *flist,
                                if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0)
                                        goto convert_error;
                                outbuf.size += 2;
-                               outbuf.buf[outbuf.len++] = '/';
+                               fbuf[outbuf.len++] = '/';
                        }
 
                        INIT_XBUF_STRLEN(inbuf, (char*)file->basename);
@@ -1367,7 +1415,26 @@ static struct file_struct *send_file_name(int f, struct file_list *flist,
                                    who_am_i(), f_name(file, fbuf), strerror(errno));
                                return NULL;
                        }
-                       outbuf.buf[outbuf.len] = '\0';
+                       fbuf[outbuf.len] = '\0';
+
+#ifdef SUPPORT_LINKS
+                       if (symlink_len && sender_symlink_iconv) {
+                               INIT_XBUF(inbuf, (char*)symlink_name, symlink_len, (size_t)-1);
+                               INIT_CONST_XBUF(outbuf, symlink_buf);
+                               if (iconvbufs(ic_send, &inbuf, &outbuf, 0) < 0) {
+                                       io_error |= IOERR_GENERAL;
+                                       f_name(file, fbuf);
+                                       rprintf(FERROR_XFER,
+                                           "[%s] cannot convert symlink data for: %s (%s)\n",
+                                           who_am_i(), full_fname(fbuf), strerror(errno));
+                                       return NULL;
+                               }
+                               symlink_buf[outbuf.len] = '\0';
+
+                               symlink_name = symlink_buf;
+                               symlink_len = outbuf.len;
+                       }
+#endif
                } else
 #endif
                        f_name(file, fbuf);
@@ -1375,7 +1442,6 @@ static struct file_struct *send_file_name(int f, struct file_list *flist,
 #ifdef SUPPORT_ACLS
                if (preserve_acls && !S_ISLNK(file->mode)) {
                        sx.st.st_mode = file->mode;
-                       sx.acc_acl = sx.def_acl = NULL;
                        if (get_acl(fname, &sx) < 0) {
                                io_error |= IOERR_GENERAL;
                                return NULL;
@@ -1384,7 +1450,6 @@ static struct file_struct *send_file_name(int f, struct file_list *flist,
 #endif
 #ifdef SUPPORT_XATTRS
                if (preserve_xattrs) {
-                       sx.xattr = NULL;
                        if (get_xattr(fname, &sx) < 0) {
                                io_error |= IOERR_GENERAL;
                                return NULL;
@@ -1392,7 +1457,11 @@ static struct file_struct *send_file_name(int f, struct file_list *flist,
                }
 #endif
 
-               send_file_entry(f, fbuf, file, flist->used, flist->ndx_start);
+               send_file_entry(f, fbuf, file,
+#ifdef SUPPORT_LINKS
+                               symlink_name, symlink_len,
+#endif
+                               flist->used, flist->ndx_start);
 
 #ifdef SUPPORT_ACLS
                if (preserve_acls && !S_ISLNK(file->mode)) {
@@ -1569,6 +1638,8 @@ static void send_directory(int f, struct file_list *flist, char *fbuf, int len,
        assert(flist != NULL);
 
        if (!(d = opendir(fbuf))) {
+               if (errno == ENOENT)
+                       return;
                io_error |= IOERR_GENERAL;
                rsyserr(FERROR_XFER, errno, "opendir %s failed", full_fname(fbuf));
                return;
@@ -1807,7 +1878,7 @@ void send_extra_file_list(int f, int at_least)
                old_cnt += flist->used;
        while (file_total - old_cnt < at_least) {
                struct file_struct *file = dir_flist->sorted[send_dir_ndx];
-               int dir_ndx, dstart = dir_count;
+               int dir_ndx, dstart = stats.num_dirs;
                const char *pathname = F_PATHNAME(file);
                int32 *dp;
 
@@ -1840,7 +1911,12 @@ void send_extra_file_list(int f, int at_least)
                        dp = F_DIR_NODE_P(file);
                }
 
-               write_byte(f, 0);
+               if (protocol_version < 31 || io_error == save_io_error || ignore_errors)
+                       write_byte(f, 0);
+               else {
+                       write_shortint(f, XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST);
+                       write_int(f, io_error);
+               }
 
                if (need_unsorted_flist) {
                        if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
@@ -1852,7 +1928,7 @@ void send_extra_file_list(int f, int at_least)
 
                flist_sort_and_clean(flist, 0);
 
-               add_dirs_to_tree(send_dir_ndx, flist, dir_count - dstart);
+               add_dirs_to_tree(send_dir_ndx, flist, stats.num_dirs - dstart);
                flist_done_allocating(flist);
 
                file_total += flist->used;
@@ -1881,7 +1957,7 @@ void send_extra_file_list(int f, int at_least)
        }
 
   finish:
-       if (io_error != save_io_error && !ignore_errors)
+       if (io_error != save_io_error && protocol_version == 30 && !ignore_errors)
                send_msg_int(MSG_IO_ERROR, io_error);
 }
 
@@ -1915,9 +1991,6 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
        start_write = stats.total_written;
        gettimeofday(&start_tv, NULL);
 
-       if (!orig_dir)
-               orig_dir = strdup(curr_dir);
-
        if (relative_paths && protocol_version >= 30)
                implied_dirs = 1; /* We send flagged implied dirs */
 
@@ -1943,6 +2016,9 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
                use_ff_fd = 1;
        }
 
+       if (!orig_dir)
+               orig_dir = strdup(curr_dir);
+
        while (1) {
                char fbuf[MAXPATHLEN], *fn, name_type;
 
@@ -2137,7 +2213,13 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
                stats.flist_buildtime = 1;
        start_tv = end_tv;
 
-       write_byte(f, 0); /* Indicate end of file list */
+       /* Indicate end of file list */
+       if (protocol_version < 31 || io_error == 0 || ignore_errors)
+               write_byte(f, 0);
+       else {
+               write_shortint(f, XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST);
+               write_int(f, io_error);
+       }
 
 #ifdef SUPPORT_HARD_LINKS
        if (preserve_hard_links && protocol_version >= 30 && !inc_recurse)
@@ -2175,7 +2257,7 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
        /* send the io_error flag */
        if (protocol_version < 30)
                write_int(f, ignore_errors ? 0 : io_error);
-       else if (io_error && !ignore_errors)
+       else if (io_error && protocol_version == 30 && !ignore_errors)
                send_msg_int(MSG_IO_ERROR, io_error);
 
        if (disable_buffering)
@@ -2192,7 +2274,7 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 
        if (inc_recurse) {
                send_dir_depth = 1;
-               add_dirs_to_tree(-1, flist, dir_count);
+               add_dirs_to_tree(-1, flist, stats.num_dirs);
                if (!file_total || strcmp(flist->sorted[flist->low]->basename, ".") != 0)
                        flist->parent_ndx = -1;
                flist_done_allocating(flist);
@@ -2223,6 +2305,10 @@ struct file_list *recv_file_list(int f)
                else if (inc_recurse && INFO_GTE(FLIST, 1) && !am_server)
                        rprintf(FCLIENT, "receiving incremental file list\n");
                rprintf(FLOG, "receiving file list\n");
+               if (usermap)
+                       parse_name_map(usermap, True);
+               if (groupmap)
+                       parse_name_map(groupmap, False);
        }
 
        start_read = stats.total_read;
@@ -2246,24 +2332,46 @@ struct file_list *recv_file_list(int f)
        while ((flags = read_byte(f)) != 0) {
                struct file_struct *file;
 
-               flist_expand(flist, 1);
-
                if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
                        flags |= read_byte(f) << 8;
-               file = recv_file_entry(flist, flags, f);
 
-               if (inc_recurse && S_ISDIR(file->mode)) {
-                       flist_expand(dir_flist, 1);
-                       dir_flist->files[dir_flist->used++] = file;
+               if (flags == (XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST)) {
+                       int err;
+                       if (protocol_version < 31) {
+                               rprintf(FERROR, "Invalid flist flag: %x\n", flags);
+                               exit_cleanup(RERR_PROTOCOL);
+                       }
+                       err = read_int(f);
+                       if (!ignore_errors)
+                               io_error |= err;
+                       break;
                }
 
+               flist_expand(flist, 1);
+               file = recv_file_entry(flist, flags, f);
+
+               if (S_ISREG(file->mode)) {
+                       /* Already counted */
+               } else if (S_ISDIR(file->mode)) {
+                       if (inc_recurse) {
+                               flist_expand(dir_flist, 1);
+                               dir_flist->files[dir_flist->used++] = file;
+                       }
+                       stats.num_dirs++;
+               } else if (S_ISLNK(file->mode))
+                       stats.num_symlinks++;
+               else if (IS_DEVICE(file->mode))
+                       stats.num_symlinks++;
+               else
+                       stats.num_specials++;
+
                flist->files[flist->used++] = file;
 
                maybe_emit_filelist_progress(flist->used);
 
                if (DEBUG_GTE(FLIST, 2)) {
-                       rprintf(FINFO, "recv_file_name(%s)\n",
-                               f_name(file, NULL));
+                       char *name = f_name(file, NULL);
+                       rprintf(FINFO, "recv_file_name(%s)\n", NS(name));
                }
        }
        file_total += flist->used;
@@ -2313,10 +2421,9 @@ struct file_list *recv_file_list(int f)
 
        if (protocol_version < 30) {
                /* Recv the io_error flag */
-               if (ignore_errors)
-                       read_int(f);
-               else
-                       io_error |= read_int(f);
+               int err = read_int(f);
+               if (!ignore_errors)
+                       io_error |= err;
        } else if (inc_recurse && flist->ndx_start == 1) {
                if (!file_total || strcmp(flist->sorted[flist->low]->basename, ".") != 0)
                        flist->parent_ndx = -1;
@@ -2413,6 +2520,28 @@ int flist_find(struct file_list *flist, struct file_struct *f)
        return -1;
 }
 
+/* Search for an identically-named item in the file list.  Differs from
+ * flist_find in that an item that agrees with "f" in directory-ness is
+ * preferred but one that does not is still found. */
+int flist_find_ignore_dirness(struct file_list *flist, struct file_struct *f)
+{
+       mode_t save_mode;
+       int ndx;
+
+       /* First look for an item that agrees in directory-ness. */
+       ndx = flist_find(flist, f);
+       if (ndx >= 0)
+               return ndx;
+
+       /* Temporarily flip f->mode to look for an item of opposite
+        * directory-ness. */
+       save_mode = f->mode;
+       f->mode = S_ISDIR(f->mode) ? S_IFREG : S_IFDIR;
+       ndx = flist_find(flist, f);
+       f->mode = save_mode;
+       return ndx;
+}
+
 /*
  * Free up any resources a file_struct has allocated
  * and clear the file.
@@ -2721,7 +2850,7 @@ static void output_flist(struct file_list *flist)
                        "[%s] i=%d %s %s%s%s%s mode=0%o len=%s%s%s flags=%x\n",
                        who, i + flist->ndx_start,
                        root, dir, slash, name, trail,
-                       (int)file->mode, big_num(F_LENGTH(file), 0),
+                       (int)file->mode, comma_num(F_LENGTH(file)),
                        uidbuf, gidbuf, file->flags);
        }
 }