-/* -*- c-file-style: "linux" -*-
+/*
+ * The filter include/exclude routines.
*
- * Copyright (C) 1996-2001 by Andrew Tridgell <tridge@samba.org>
- * Copyright (C) 1996 by Paul Mackerras
- * Copyright (C) 2002 by Martin Pool
+ * Copyright (C) 1996-2001 Andrew Tridgell <tridge@samba.org>
+ * Copyright (C) 1996 Paul Mackerras
+ * Copyright (C) 2002 Martin Pool
+ * Copyright (C) 2003-2008 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
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* 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.
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, visit the http://fsf.org website.
*/
-/* a lot of this stuff was originally derived from GNU tar, although
- it has now changed so much that it is hard to tell :) */
-
-/* include/exclude cluestick added by Martin Pool <mbp@samba.org> */
-
#include "rsync.h"
extern int verbose;
+extern int am_server;
+extern int am_sender;
+extern int eol_nulls;
+extern int io_error;
+extern int local_server;
+extern int prune_empty_dirs;
+extern int ignore_perishable;
+extern int delete_mode;
+extern int delete_excluded;
+extern int cvs_exclude;
+extern int sanitize_paths;
+extern int protocol_version;
+extern int module_id;
+
+extern char curr_dir[];
+extern unsigned int curr_dir_len;
+extern unsigned int module_dirlen;
+
+struct filter_list_struct filter_list = { 0, 0, "" };
+struct filter_list_struct cvs_filter_list = { 0, 0, " [global CVS]" };
+struct filter_list_struct daemon_filter_list = { 0, 0, " [daemon]" };
+
+/* Need room enough for ":MODS " prefix plus some room to grow. */
+#define MAX_RULE_PREFIX (16)
+
+#define MODIFIERS_MERGE_FILE "-+Cenw"
+#define MODIFIERS_INCL_EXCL "/!Crsp"
+#define MODIFIERS_HIDE_PROTECT "/!p"
+
+/* The dirbuf is set by push_local_filters() to the current subdirectory
+ * relative to curr_dir that is being processed. The path always has a
+ * trailing slash appended, and the variable dirbuf_len contains the length
+ * of this path prefix. The path is always absolute. */
+static char dirbuf[MAXPATHLEN+1];
+static unsigned int dirbuf_len = 0;
+static int dirbuf_depth;
+
+/* This is True when we're scanning parent dirs for per-dir merge-files. */
+static BOOL parent_dirscan = False;
+
+/* This array contains a list of all the currently active per-dir merge
+ * files. This makes it easier to save the appropriate values when we
+ * "push" down into each subdirectory. */
+static struct filter_struct **mergelist_parents;
+static int mergelist_cnt = 0;
+static int mergelist_size = 0;
+
+/* Each filter_list_struct describes a singly-linked list by keeping track
+ * of both the head and tail pointers. The list is slightly unusual in that
+ * a parent-dir's content can be appended to the end of the local list in a
+ * special way: the last item in the local list has its "next" pointer set
+ * to point to the inherited list, but the local list's tail pointer points
+ * at the end of the local list. Thus, if the local list is empty, the head
+ * will be pointing at the inherited content but the tail will be NULL. To
+ * help you visualize this, here are the possible list arrangements:
+ *
+ * Completely Empty Local Content Only
+ * ================================== ====================================
+ * head -> NULL head -> Local1 -> Local2 -> NULL
+ * tail -> NULL tail -------------^
+ *
+ * Inherited Content Only Both Local and Inherited Content
+ * ================================== ====================================
+ * head -> Parent1 -> Parent2 -> NULL head -> L1 -> L2 -> P1 -> P2 -> NULL
+ * tail -> NULL tail ---------^
+ *
+ * This means that anyone wanting to traverse the whole list to use it just
+ * needs to start at the head and use the "next" pointers until it goes
+ * NULL. To add new local content, we insert the item after the tail item
+ * and update the tail (obviously, if "tail" was NULL, we insert it at the
+ * head). To clear the local list, WE MUST NOT FREE THE INHERITED CONTENT
+ * because it is shared between the current list and our parent list(s).
+ * The easiest way to handle this is to simply truncate the list after the
+ * tail item and then free the local list from the head. When inheriting
+ * the list for a new local dir, we just save off the filter_list_struct
+ * values (so we can pop back to them later) and set the tail to NULL.
+ */
-struct exclude_struct **exclude_list;
-struct exclude_struct **local_exclude_list;
-struct exclude_struct **server_exclude_list;
-char *exclude_path_prefix = NULL;
+static void free_filter(struct filter_struct *ex)
+{
+ if (ex->match_flags & MATCHFLG_PERDIR_MERGE) {
+ free(ex->u.mergelist->debug_type);
+ free(ex->u.mergelist);
+ mergelist_cnt--;
+ }
+ free(ex->pattern);
+ free(ex);
+}
-/** Build an exclude structure given a exclude pattern */
-static struct exclude_struct *make_exclude(const char *pattern, int pat_len,
- int include)
+/* Build a filter structure given a filter pattern. The value in "pat"
+ * is not null-terminated. */
+static void add_rule(struct filter_list_struct *listp, const char *pat,
+ unsigned int pat_len, uint32 mflags, int xflags)
{
- struct exclude_struct *ret;
+ struct filter_struct *ret;
const char *cp;
- int ex_len;
+ unsigned int pre_len, slash_cnt = 0;
+
+ if (verbose > 2) {
+ rprintf(FINFO, "[%s] add_rule(%s%.*s%s)%s\n",
+ who_am_i(), get_rule_prefix(mflags, pat, 0, NULL),
+ (int)pat_len, pat,
+ (mflags & MATCHFLG_DIRECTORY) ? "/" : "",
+ listp->debug_type);
+ }
+
+ /* These flags also indicate that we're reading a list that
+ * needs to be filtered now, not post-filtered later. */
+ if (xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH)) {
+ uint32 mf = mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE);
+ if (am_sender) {
+ if (mf == MATCHFLG_RECEIVER_SIDE)
+ return;
+ } else {
+ if (mf == MATCHFLG_SENDER_SIDE)
+ return;
+ }
+ }
- ret = new(struct exclude_struct);
- if (!ret)
- out_of_memory("make_exclude");
+ if (!(ret = new0(struct filter_struct)))
+ out_of_memory("add_rule");
- memset(ret, 0, sizeof ret[0]);
- ret->include = include;
+ if (pat_len > 1 && pat[pat_len-1] == '/') {
+ pat_len--;
+ mflags |= MATCHFLG_DIRECTORY;
+ }
- if (exclude_path_prefix)
- ret->match_flags |= MATCHFLG_ABS_PATH;
- if (exclude_path_prefix && *pattern == '/')
- ex_len = strlen(exclude_path_prefix);
- else
- ex_len = 0;
- ret->pattern = new_array(char, ex_len + pat_len + 1);
- if (!ret->pattern)
- out_of_memory("make_exclude");
- if (ex_len)
- memcpy(ret->pattern, exclude_path_prefix, ex_len);
- strlcpy(ret->pattern + ex_len, pattern, pat_len + 1);
- pat_len += ex_len;
+ for (cp = pat; cp < pat + pat_len; cp++) {
+ if (*cp == '/')
+ slash_cnt++;
+ }
+
+ if (!(mflags & (MATCHFLG_ABS_PATH | MATCHFLG_MERGE_FILE))
+ && ((xflags & (XFLG_ANCHORED2ABS|XFLG_ABS_IF_SLASH) && *pat == '/')
+ || (xflags & XFLG_ABS_IF_SLASH && slash_cnt))) {
+ mflags |= MATCHFLG_ABS_PATH;
+ if (*pat == '/')
+ pre_len = dirbuf_len - module_dirlen - 1;
+ else
+ pre_len = 0;
+ } else
+ pre_len = 0;
+
+ if (!(ret->pattern = new_array(char, pre_len + pat_len + 1)))
+ out_of_memory("add_rule");
+ if (pre_len) {
+ memcpy(ret->pattern, dirbuf + module_dirlen, pre_len);
+ for (cp = ret->pattern; cp < ret->pattern + pre_len; cp++) {
+ if (*cp == '/')
+ slash_cnt++;
+ }
+ }
+ strlcpy(ret->pattern + pre_len, pat, pat_len + 1);
+ pat_len += pre_len;
if (strpbrk(ret->pattern, "*[?")) {
- ret->match_flags |= MATCHFLG_WILD;
+ mflags |= MATCHFLG_WILD;
if ((cp = strstr(ret->pattern, "**")) != NULL) {
- ret->match_flags |= MATCHFLG_WILD2;
+ mflags |= MATCHFLG_WILD2;
/* If the pattern starts with **, note that. */
if (cp == ret->pattern)
- ret->match_flags |= MATCHFLG_WILD2_PREFIX;
+ mflags |= MATCHFLG_WILD2_PREFIX;
+ /* If the pattern ends with ***, note that. */
+ if (pat_len >= 3
+ && ret->pattern[pat_len-3] == '*'
+ && ret->pattern[pat_len-2] == '*'
+ && ret->pattern[pat_len-1] == '*')
+ mflags |= MATCHFLG_WILD3_SUFFIX;
+ }
+ }
+
+ if (mflags & MATCHFLG_PERDIR_MERGE) {
+ struct filter_list_struct *lp;
+ unsigned int len;
+ int i;
+
+ if ((cp = strrchr(ret->pattern, '/')) != NULL)
+ cp++;
+ else
+ cp = ret->pattern;
+
+ /* If the local merge file was already mentioned, don't
+ * add it again. */
+ for (i = 0; i < mergelist_cnt; i++) {
+ struct filter_struct *ex = mergelist_parents[i];
+ const char *s = strrchr(ex->pattern, '/');
+ if (s)
+ s++;
+ else
+ s = ex->pattern;
+ len = strlen(s);
+ if (len == pat_len - (cp - ret->pattern)
+ && memcmp(s, cp, len) == 0) {
+ free_filter(ret);
+ return;
+ }
+ }
+
+ if (!(lp = new_array(struct filter_list_struct, 1)))
+ out_of_memory("add_rule");
+ lp->head = lp->tail = NULL;
+ if (asprintf(&lp->debug_type, " [per-dir %s]", cp) < 0)
+ out_of_memory("add_rule");
+ ret->u.mergelist = lp;
+
+ if (mergelist_cnt == mergelist_size) {
+ mergelist_size += 5;
+ mergelist_parents = realloc_array(mergelist_parents,
+ struct filter_struct *,
+ mergelist_size);
+ if (!mergelist_parents)
+ out_of_memory("add_rule");
+ }
+ mergelist_parents[mergelist_cnt++] = ret;
+ } else
+ ret->u.slash_cnt = slash_cnt;
+
+ ret->match_flags = mflags;
+
+ if (!listp->tail) {
+ ret->next = listp->head;
+ listp->head = listp->tail = ret;
+ } else {
+ ret->next = listp->tail->next;
+ listp->tail->next = ret;
+ listp->tail = ret;
+ }
+}
+
+static void clear_filter_list(struct filter_list_struct *listp)
+{
+ if (listp->tail) {
+ struct filter_struct *ent, *next;
+ /* Truncate any inherited items from the local list. */
+ listp->tail->next = NULL;
+ /* Now free everything that is left. */
+ for (ent = listp->head; ent; ent = next) {
+ next = ent->next;
+ free_filter(ent);
+ }
+ }
+
+ listp->head = listp->tail = NULL;
+}
+
+/* This returns an expanded (absolute) filename for the merge-file name if
+ * the name has any slashes in it OR if the parent_dirscan var is True;
+ * otherwise it returns the original merge_file name. If the len_ptr value
+ * is non-NULL the merge_file name is limited by the referenced length
+ * value and will be updated with the length of the resulting name. We
+ * always return a name that is null terminated, even if the merge_file
+ * name was not. */
+static char *parse_merge_name(const char *merge_file, unsigned int *len_ptr,
+ unsigned int prefix_skip)
+{
+ static char buf[MAXPATHLEN];
+ char *fn, tmpbuf[MAXPATHLEN];
+ unsigned int fn_len;
+
+ if (!parent_dirscan && *merge_file != '/') {
+ /* Return the name unchanged it doesn't have any slashes. */
+ if (len_ptr) {
+ const char *p = merge_file + *len_ptr;
+ while (--p > merge_file && *p != '/') {}
+ if (p == merge_file) {
+ strlcpy(buf, merge_file, *len_ptr + 1);
+ return buf;
+ }
+ } else if (strchr(merge_file, '/') == NULL)
+ return (char *)merge_file;
+ }
+
+ fn = *merge_file == '/' ? buf : tmpbuf;
+ if (sanitize_paths) {
+ const char *r = prefix_skip ? "/" : NULL;
+ /* null-terminate the name if it isn't already */
+ if (len_ptr && merge_file[*len_ptr]) {
+ char *to = fn == buf ? tmpbuf : buf;
+ strlcpy(to, merge_file, *len_ptr + 1);
+ merge_file = to;
}
+ if (!sanitize_path(fn, merge_file, r, dirbuf_depth, SP_DEFAULT)) {
+ rprintf(FERROR, "merge-file name overflows: %s\n",
+ merge_file);
+ return NULL;
+ }
+ fn_len = strlen(fn);
+ } else {
+ strlcpy(fn, merge_file, len_ptr ? *len_ptr + 1 : MAXPATHLEN);
+ fn_len = clean_fname(fn, CFN_COLLAPSE_DOT_DOT_DIRS);
}
- if (pat_len > 1 && ret->pattern[pat_len-1] == '/') {
- ret->pattern[pat_len-1] = 0;
- ret->directory = 1;
+ /* If the name isn't in buf yet, it's wasn't absolute. */
+ if (fn != buf) {
+ if (dirbuf_len + fn_len >= MAXPATHLEN) {
+ rprintf(FERROR, "merge-file name overflows: %s\n", fn);
+ return NULL;
+ }
+ memcpy(buf, dirbuf + prefix_skip, dirbuf_len - prefix_skip);
+ memcpy(buf + dirbuf_len - prefix_skip, fn, fn_len + 1);
+ fn_len = clean_fname(buf, CFN_COLLAPSE_DOT_DOT_DIRS);
}
- for (cp = ret->pattern; (cp = strchr(cp, '/')) != NULL; cp++)
- ret->slash_cnt++;
+ if (len_ptr)
+ *len_ptr = fn_len;
+ return buf;
+}
- return ret;
+/* Sets the dirbuf and dirbuf_len values. */
+void set_filter_dir(const char *dir, unsigned int dirlen)
+{
+ unsigned int len;
+ if (*dir != '/') {
+ memcpy(dirbuf, curr_dir, curr_dir_len);
+ dirbuf[curr_dir_len] = '/';
+ len = curr_dir_len + 1;
+ if (len + dirlen >= MAXPATHLEN)
+ dirlen = 0;
+ } else
+ len = 0;
+ memcpy(dirbuf + len, dir, dirlen);
+ dirbuf[dirlen + len] = '\0';
+ dirbuf_len = clean_fname(dirbuf, CFN_COLLAPSE_DOT_DOT_DIRS);
+ if (dirbuf_len > 1 && dirbuf[dirbuf_len-1] == '.'
+ && dirbuf[dirbuf_len-2] == '/')
+ dirbuf_len -= 2;
+ if (dirbuf_len != 1)
+ dirbuf[dirbuf_len++] = '/';
+ dirbuf[dirbuf_len] = '\0';
+ if (sanitize_paths)
+ dirbuf_depth = count_dir_elements(dirbuf + module_dirlen);
}
-static void free_exclude(struct exclude_struct *ex)
+/* This routine takes a per-dir merge-file entry and finishes its setup.
+ * If the name has a path portion then we check to see if it refers to a
+ * parent directory of the first transfer dir. If it does, we scan all the
+ * dirs from that point through the parent dir of the transfer dir looking
+ * for the per-dir merge-file in each one. */
+static BOOL setup_merge_file(struct filter_struct *ex,
+ struct filter_list_struct *lp)
{
- free(ex->pattern);
- memset(ex, 0, sizeof ex[0]);
- free(ex);
+ char buf[MAXPATHLEN];
+ char *x, *y, *pat = ex->pattern;
+ unsigned int len;
+
+ if (!(x = parse_merge_name(pat, NULL, 0)) || *x != '/')
+ return 0;
+
+ y = strrchr(x, '/');
+ *y = '\0';
+ ex->pattern = strdup(y+1);
+ if (!*x)
+ x = "/";
+ if (*x == '/')
+ strlcpy(buf, x, MAXPATHLEN);
+ else
+ pathjoin(buf, MAXPATHLEN, dirbuf, x);
+
+ len = clean_fname(buf, CFN_COLLAPSE_DOT_DOT_DIRS);
+ if (len != 1 && len < MAXPATHLEN-1) {
+ buf[len++] = '/';
+ buf[len] = '\0';
+ }
+ /* This ensures that the specified dir is a parent of the transfer. */
+ for (x = buf, y = dirbuf; *x && *x == *y; x++, y++) {}
+ if (*x)
+ y += strlen(y); /* nope -- skip the scan */
+
+ parent_dirscan = True;
+ while (*y) {
+ char save[MAXPATHLEN];
+ strlcpy(save, y, MAXPATHLEN);
+ *y = '\0';
+ dirbuf_len = y - dirbuf;
+ strlcpy(x, ex->pattern, MAXPATHLEN - (x - buf));
+ parse_filter_file(lp, buf, ex->match_flags, XFLG_ANCHORED2ABS);
+ if (ex->match_flags & MATCHFLG_NO_INHERIT)
+ lp->head = NULL;
+ lp->tail = NULL;
+ strlcpy(y, save, MAXPATHLEN);
+ while ((*x++ = *y++) != '/') {}
+ }
+ parent_dirscan = False;
+ free(pat);
+ return 1;
}
+/* Each time rsync changes to a new directory it call this function to
+ * handle all the per-dir merge-files. The "dir" value is the current path
+ * relative to curr_dir (which might not be null-terminated). We copy it
+ * into dirbuf so that we can easily append a file name on the end. */
+void *push_local_filters(const char *dir, unsigned int dirlen)
+{
+ struct filter_list_struct *ap, *push;
+ int i;
+
+ set_filter_dir(dir, dirlen);
+
+ if (!mergelist_cnt)
+ return NULL;
+
+ push = new_array(struct filter_list_struct, mergelist_cnt);
+ if (!push)
+ out_of_memory("push_local_filters");
+
+ for (i = 0, ap = push; i < mergelist_cnt; i++) {
+ memcpy(ap++, mergelist_parents[i]->u.mergelist,
+ sizeof (struct filter_list_struct));
+ }
+
+ /* Note: parse_filter_file() might increase mergelist_cnt, so keep
+ * this loop separate from the above loop. */
+ for (i = 0; i < mergelist_cnt; i++) {
+ struct filter_struct *ex = mergelist_parents[i];
+ struct filter_list_struct *lp = ex->u.mergelist;
+
+ if (verbose > 2) {
+ rprintf(FINFO, "[%s] pushing filter list%s\n",
+ who_am_i(), lp->debug_type);
+ }
+
+ lp->tail = NULL; /* Switch any local rules to inherited. */
+ if (ex->match_flags & MATCHFLG_NO_INHERIT)
+ lp->head = NULL;
+
+ if (ex->match_flags & MATCHFLG_FINISH_SETUP) {
+ ex->match_flags &= ~MATCHFLG_FINISH_SETUP;
+ if (setup_merge_file(ex, lp))
+ set_filter_dir(dir, dirlen);
+ }
+
+ if (strlcpy(dirbuf + dirbuf_len, ex->pattern,
+ MAXPATHLEN - dirbuf_len) < MAXPATHLEN - dirbuf_len) {
+ parse_filter_file(lp, dirbuf, ex->match_flags,
+ XFLG_ANCHORED2ABS);
+ } else {
+ io_error |= IOERR_GENERAL;
+ rprintf(FINFO,
+ "cannot add local filter rules in long-named directory: %s\n",
+ full_fname(dirbuf));
+ }
+ dirbuf[dirbuf_len] = '\0';
+ }
+
+ return (void*)push;
+}
-void free_exclude_list(struct exclude_struct ***listp)
+void pop_local_filters(void *mem)
{
- struct exclude_struct **list = *listp;
+ struct filter_list_struct *ap, *pop = (struct filter_list_struct*)mem;
+ int i;
- if (verbose > 2)
- rprintf(FINFO, "[%s] clearing exclude list\n", who_am_i());
+ for (i = mergelist_cnt; i-- > 0; ) {
+ struct filter_struct *ex = mergelist_parents[i];
+ struct filter_list_struct *lp = ex->u.mergelist;
- if (!list)
+ if (verbose > 2) {
+ rprintf(FINFO, "[%s] popping filter list%s\n",
+ who_am_i(), lp->debug_type);
+ }
+
+ clear_filter_list(lp);
+ }
+
+ if (!pop)
return;
- while (*list)
- free_exclude(*list++);
+ for (i = 0, ap = pop; i < mergelist_cnt; i++) {
+ memcpy(mergelist_parents[i]->u.mergelist, ap++,
+ sizeof (struct filter_list_struct));
+ }
- free(*listp);
- *listp = NULL;
+ free(pop);
}
-static int check_one_exclude(char *name, struct exclude_struct *ex,
- int name_is_dir)
+void change_local_filter_dir(const char *dname, int dlen, int dir_depth)
{
- char *p;
- int match_start = 0;
- char *pattern = ex->pattern;
-
- /* If the pattern does not have any slashes AND it does not have
- * a "**" (which could match a slash), then we just match the
- * name portion of the path. */
- if (!ex->slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) {
- if ((p = strrchr(name,'/')) != NULL)
- name = p+1;
+ static int cur_depth = -1;
+ static void *filt_array[MAXPATHLEN/2+1];
+
+ if (!dname) {
+ for ( ; cur_depth >= 0; cur_depth--) {
+ if (filt_array[cur_depth]) {
+ pop_local_filters(filt_array[cur_depth]);
+ filt_array[cur_depth] = NULL;
+ }
+ }
+ return;
}
- else if ((ex->match_flags & MATCHFLG_ABS_PATH) && *name != '/') {
- static char full_name[MAXPATHLEN];
- extern char curr_dir[];
- int plus = curr_dir[1] == '\0'? 1 : 0;
- pathjoin(full_name, sizeof full_name, curr_dir+plus, name);
- name = full_name;
+
+ assert(dir_depth < MAXPATHLEN/2+1);
+
+ for ( ; cur_depth >= dir_depth; cur_depth--) {
+ if (filt_array[cur_depth]) {
+ pop_local_filters(filt_array[cur_depth]);
+ filt_array[cur_depth] = NULL;
+ }
}
- if (!name[0]) return 0;
+ cur_depth = dir_depth;
+ filt_array[cur_depth] = push_local_filters(dname, dlen);
+}
- if (ex->directory && !name_is_dir) return 0;
+static int rule_matches(const char *fname, struct filter_struct *ex, int name_is_dir)
+{
+ int slash_handling, str_cnt = 0, anchored_match = 0;
+ int ret_match = ex->match_flags & MATCHFLG_NEGATE ? 0 : 1;
+ char *p, *pattern = ex->pattern;
+ const char *strings[16]; /* more than enough */
+ const char *name = fname + (*fname == '/');
+
+ if (!*name)
+ return 0;
+
+ if (!ex->u.slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) {
+ /* If the pattern does not have any slashes AND it does
+ * not have a "**" (which could match a slash), then we
+ * just match the name portion of the path. */
+ if ((p = strrchr(name,'/')) != NULL)
+ name = p+1;
+ } else if (ex->match_flags & MATCHFLG_ABS_PATH && *fname != '/'
+ && curr_dir_len > module_dirlen + 1) {
+ /* If we're matching against an absolute-path pattern,
+ * we need to prepend our full path info. */
+ strings[str_cnt++] = curr_dir + module_dirlen + 1;
+ strings[str_cnt++] = "/";
+ } else if (ex->match_flags & MATCHFLG_WILD2_PREFIX && *fname != '/') {
+ /* Allow "**"+"/" to match at the start of the string. */
+ strings[str_cnt++] = "/";
+ }
+ strings[str_cnt++] = name;
+ if (name_is_dir) {
+ /* Allow a trailing "/"+"***" to match the directory. */
+ if (ex->match_flags & MATCHFLG_WILD3_SUFFIX)
+ strings[str_cnt++] = "/";
+ } else if (ex->match_flags & MATCHFLG_DIRECTORY)
+ return !ret_match;
+ strings[str_cnt] = NULL;
if (*pattern == '/') {
- match_start = 1;
+ anchored_match = 1;
pattern++;
- if (*name == '/')
- name++;
}
- if (ex->match_flags & MATCHFLG_WILD) {
+ if (!anchored_match && ex->u.slash_cnt
+ && !(ex->match_flags & MATCHFLG_WILD2)) {
/* A non-anchored match with an infix slash and no "**"
* needs to match the last slash_cnt+1 name elements. */
- if (!match_start && ex->slash_cnt &&
- !(ex->match_flags & MATCHFLG_WILD2)) {
- int cnt = ex->slash_cnt + 1;
- for (p = name + strlen(name) - 1; p >= name; p--) {
- if (*p == '/' && !--cnt)
- break;
- }
- name = p+1;
- }
- if (wildmatch(pattern, name))
- return 1;
- if (ex->match_flags & MATCHFLG_WILD2_PREFIX) {
- /* If the **-prefixed pattern has a '/' as the next
- * character, then try to match the rest of the
- * pattern at the root. */
- if (pattern[2] == '/' && wildmatch(pattern+3, name))
- return 1;
- }
- else if (!match_start && ex->match_flags & MATCHFLG_WILD2) {
- /* A non-anchored match with an infix or trailing "**"
- * (but not a prefixed "**") needs to try matching
- * after every slash. */
- while ((name = strchr(name, '/')) != NULL) {
- name++;
- if (wildmatch(pattern, name))
- return 1;
- }
- }
- } else if (match_start) {
- if (strcmp(name,pattern) == 0)
- return 1;
+ slash_handling = ex->u.slash_cnt + 1;
+ } else if (!anchored_match && !(ex->match_flags & MATCHFLG_WILD2_PREFIX)
+ && ex->match_flags & MATCHFLG_WILD2) {
+ /* A non-anchored match with an infix or trailing "**" (but not
+ * a prefixed "**") needs to try matching after every slash. */
+ slash_handling = -1;
+ } else {
+ /* The pattern matches only at the start of the path or name. */
+ slash_handling = 0;
+ }
+
+ if (ex->match_flags & MATCHFLG_WILD) {
+ if (wildmatch_array(pattern, strings, slash_handling))
+ return ret_match;
+ } else if (str_cnt > 1) {
+ if (litmatch_array(pattern, strings, slash_handling))
+ return ret_match;
+ } else if (anchored_match) {
+ if (strcmp(name, pattern) == 0)
+ return ret_match;
} else {
int l1 = strlen(name);
int l2 = strlen(pattern);
if (l2 <= l1 &&
strcmp(name+(l1-l2),pattern) == 0 &&
(l1==l2 || name[l1-(l2+1)] == '/')) {
- return 1;
+ return ret_match;
}
}
- return 0;
+ return !ret_match;
}
-static void report_exclude_result(char const *name,
- struct exclude_struct const *ent,
- int name_is_dir)
+static void report_filter_result(char const *name,
+ struct filter_struct const *ent,
+ int name_is_dir, const char *type)
{
/* If a trailing slash is present to match only directories,
- * then it is stripped out by make_exclude. So as a special
+ * then it is stripped out by add_rule(). So as a special
* case we add it back in here. */
if (verbose >= 2) {
- rprintf(FINFO, "[%s] %scluding %s %s because of pattern %s%s\n",
- who_am_i(), ent->include ? "in" : "ex",
- name_is_dir ? "directory" : "file", name, ent->pattern,
- ent->directory ? "/" : "");
+ static char *actions[2][2]
+ = { {"show", "hid"}, {"risk", "protect"} };
+ const char *w = who_am_i();
+ rprintf(FINFO, "[%s] %sing %s %s because of pattern %s%s%s\n",
+ w, actions[*w!='s'][!(ent->match_flags&MATCHFLG_INCLUDE)],
+ name_is_dir ? "directory" : "file", name, ent->pattern,
+ ent->match_flags & MATCHFLG_DIRECTORY ? "/" : "", type);
}
}
/*
- * Return true if file NAME is defined to be excluded by either
- * LOCAL_EXCLUDE_LIST or the globals EXCLUDE_LIST.
+ * Return -1 if file "name" is defined to be excluded by the specified
+ * exclude list, 1 if it is included, and 0 if it was not matched.
*/
-int check_exclude(struct exclude_struct **list, char *name, int name_is_dir)
+int check_filter(struct filter_list_struct *listp, const char *name, int name_is_dir)
{
- struct exclude_struct *ent;
+ struct filter_struct *ent;
- while ((ent = *list++) != NULL) {
- if (check_one_exclude(name, ent, name_is_dir)) {
- report_exclude_result(name, ent, name_is_dir);
- return !ent->include;
+ for (ent = listp->head; ent; ent = ent->next) {
+ if (ignore_perishable && ent->match_flags & MATCHFLG_PERISHABLE)
+ continue;
+ if (ent->match_flags & MATCHFLG_PERDIR_MERGE) {
+ int rc = check_filter(ent->u.mergelist, name,
+ name_is_dir);
+ if (rc)
+ return rc;
+ continue;
+ }
+ if (ent->match_flags & MATCHFLG_CVS_IGNORE) {
+ int rc = check_filter(&cvs_filter_list, name,
+ name_is_dir);
+ if (rc)
+ return rc;
+ continue;
+ }
+ if (rule_matches(name, ent, name_is_dir)) {
+ report_filter_result(name, ent, name_is_dir,
+ listp->debug_type);
+ return ent->match_flags & MATCHFLG_INCLUDE ? 1 : -1;
}
}
return 0;
}
+#define RULE_STRCMP(s,r) rule_strcmp((s), (r), sizeof (r) - 1)
+
+static const uchar *rule_strcmp(const uchar *str, const char *rule, int rule_len)
+{
+ if (strncmp((char*)str, rule, rule_len) != 0)
+ return NULL;
+ if (isspace(str[rule_len]) || str[rule_len] == '_' || !str[rule_len])
+ return str + rule_len - 1;
+ if (str[rule_len] == ',')
+ return str + rule_len;
+ return NULL;
+}
/* Get the next include/exclude arg from the string. The token will not
* be '\0' terminated, so use the returned length to limit the string.
* Also, be sure to add this length to the returned pointer before passing
- * it back to ask for the next token. This routine will not split off a
- * prefix of "+ " or "- " unless xflags contains XFLG_NO_PREFIXES. The
- * *incl_ptr value will be 1 for an include, 0 for an exclude, and -1 for
- * the list-clearing "!" token.
- */
-static const char *get_exclude_tok(const char *p, int *len_ptr, int *incl_ptr,
- int xflags)
+ * it back to ask for the next token. This routine parses the "!" (list-
+ * clearing) token and (depending on the mflags) the various prefixes.
+ * The *mflags_ptr value will be set on exit to the new MATCHFLG_* bits
+ * for the current token. */
+static const char *parse_rule_tok(const char *p, uint32 mflags, int xflags,
+ unsigned int *len_ptr, uint32 *mflags_ptr)
{
- const unsigned char *s = (const unsigned char *)p;
- int len;
+ const uchar *s = (const uchar *)p;
+ uint32 new_mflags;
+ unsigned int len;
- if (xflags & XFLG_WORD_SPLIT) {
+ if (mflags & MATCHFLG_WORD_SPLIT) {
/* Skip over any initial whitespace. */
while (isspace(*s))
s++;
- /* Update for "!" check. */
+ /* Update to point to real start of rule. */
p = (const char *)s;
}
+ if (!*s)
+ return NULL;
+
+ new_mflags = mflags & MATCHFLGS_FROM_CONTAINER;
+
+ /* Figure out what kind of a filter rule "s" is pointing at. Note
+ * that if MATCHFLG_NO_PREFIXES is set, the rule is either an include
+ * or an exclude based on the inheritance of the MATCHFLG_INCLUDE
+ * flag (above). XFLG_OLD_PREFIXES indicates a compatibility mode
+ * for old include/exclude patterns where just "+ " and "- " are
+ * allowed as optional prefixes. */
+ if (mflags & MATCHFLG_NO_PREFIXES) {
+ if (*s == '!' && mflags & MATCHFLG_CVS_IGNORE)
+ new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */
+ } else if (xflags & XFLG_OLD_PREFIXES) {
+ if (*s == '-' && s[1] == ' ') {
+ new_mflags &= ~MATCHFLG_INCLUDE;
+ s += 2;
+ } else if (*s == '+' && s[1] == ' ') {
+ new_mflags |= MATCHFLG_INCLUDE;
+ s += 2;
+ } else if (*s == '!')
+ new_mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */
+ } else {
+ char ch = 0, *mods = "";
+ switch (*s) {
+ case 'c':
+ if ((s = RULE_STRCMP(s, "clear")) != NULL)
+ ch = '!';
+ break;
+ case 'd':
+ if ((s = RULE_STRCMP(s, "dir-merge")) != NULL)
+ ch = ':';
+ break;
+ case 'e':
+ if ((s = RULE_STRCMP(s, "exclude")) != NULL)
+ ch = '-';
+ break;
+ case 'h':
+ if ((s = RULE_STRCMP(s, "hide")) != NULL)
+ ch = 'H';
+ break;
+ case 'i':
+ if ((s = RULE_STRCMP(s, "include")) != NULL)
+ ch = '+';
+ break;
+ case 'm':
+ if ((s = RULE_STRCMP(s, "merge")) != NULL)
+ ch = '.';
+ break;
+ case 'p':
+ if ((s = RULE_STRCMP(s, "protect")) != NULL)
+ ch = 'P';
+ break;
+ case 'r':
+ if ((s = RULE_STRCMP(s, "risk")) != NULL)
+ ch = 'R';
+ break;
+ case 's':
+ if ((s = RULE_STRCMP(s, "show")) != NULL)
+ ch = 'S';
+ break;
+ default:
+ ch = *s;
+ if (s[1] == ',')
+ s++;
+ break;
+ }
+ switch (ch) {
+ case ':':
+ new_mflags |= MATCHFLG_PERDIR_MERGE
+ | MATCHFLG_FINISH_SETUP;
+ /* FALL THROUGH */
+ case '.':
+ new_mflags |= MATCHFLG_MERGE_FILE;
+ mods = MODIFIERS_INCL_EXCL MODIFIERS_MERGE_FILE;
+ break;
+ case '+':
+ new_mflags |= MATCHFLG_INCLUDE;
+ /* FALL THROUGH */
+ case '-':
+ mods = MODIFIERS_INCL_EXCL;
+ break;
+ case 'S':
+ new_mflags |= MATCHFLG_INCLUDE;
+ /* FALL THROUGH */
+ case 'H':
+ new_mflags |= MATCHFLG_SENDER_SIDE;
+ mods = MODIFIERS_HIDE_PROTECT;
+ break;
+ case 'R':
+ new_mflags |= MATCHFLG_INCLUDE;
+ /* FALL THROUGH */
+ case 'P':
+ new_mflags |= MATCHFLG_RECEIVER_SIDE;
+ mods = MODIFIERS_HIDE_PROTECT;
+ break;
+ case '!':
+ new_mflags |= MATCHFLG_CLEAR_LIST;
+ mods = NULL;
+ break;
+ default:
+ rprintf(FERROR, "Unknown filter rule: `%s'\n", p);
+ exit_cleanup(RERR_SYNTAX);
+ }
+ while (mods && *++s && *s != ' ' && *s != '_') {
+ if (strchr(mods, *s) == NULL) {
+ if (mflags & MATCHFLG_WORD_SPLIT && isspace(*s)) {
+ s--;
+ break;
+ }
+ invalid:
+ rprintf(FERROR,
+ "invalid modifier sequence at '%c' in filter rule: %s\n",
+ *s, p);
+ exit_cleanup(RERR_SYNTAX);
+ }
+ switch (*s) {
+ case '-':
+ if (new_mflags & MATCHFLG_NO_PREFIXES)
+ goto invalid;
+ new_mflags |= MATCHFLG_NO_PREFIXES;
+ break;
+ case '+':
+ if (new_mflags & MATCHFLG_NO_PREFIXES)
+ goto invalid;
+ new_mflags |= MATCHFLG_NO_PREFIXES
+ | MATCHFLG_INCLUDE;
+ break;
+ case '/':
+ new_mflags |= MATCHFLG_ABS_PATH;
+ break;
+ case '!':
+ new_mflags |= MATCHFLG_NEGATE;
+ break;
+ case 'C':
+ if (new_mflags & MATCHFLG_NO_PREFIXES)
+ goto invalid;
+ new_mflags |= MATCHFLG_NO_PREFIXES
+ | MATCHFLG_WORD_SPLIT
+ | MATCHFLG_NO_INHERIT
+ | MATCHFLG_CVS_IGNORE;
+ break;
+ case 'e':
+ new_mflags |= MATCHFLG_EXCLUDE_SELF;
+ break;
+ case 'n':
+ new_mflags |= MATCHFLG_NO_INHERIT;
+ break;
+ case 'p':
+ new_mflags |= MATCHFLG_PERISHABLE;
+ break;
+ case 'r':
+ new_mflags |= MATCHFLG_RECEIVER_SIDE;
+ break;
+ case 's':
+ new_mflags |= MATCHFLG_SENDER_SIDE;
+ break;
+ case 'w':
+ new_mflags |= MATCHFLG_WORD_SPLIT;
+ break;
+ }
+ }
+ if (*s)
+ s++;
+ }
- /* Is this a '+' or '-' followed by a space (not whitespace)? */
- if (!(xflags & XFLG_NO_PREFIXES)
- && (*s == '-' || *s == '+') && s[1] == ' ') {
- *incl_ptr = *s == '+';
- s += 2;
- } else
- *incl_ptr = xflags & XFLG_DEF_INCLUDE;
-
- if (xflags & XFLG_WORD_SPLIT) {
- const unsigned char *cp = s;
+ if (mflags & MATCHFLG_WORD_SPLIT) {
+ const uchar *cp = s;
/* Token ends at whitespace or the end of the string. */
while (!isspace(*cp) && *cp != '\0')
cp++;
len = cp - s;
} else
- len = strlen(s);
+ len = strlen((char*)s);
+
+ if (new_mflags & MATCHFLG_CLEAR_LIST) {
+ if (!(mflags & MATCHFLG_NO_PREFIXES)
+ && !(xflags & XFLG_OLD_PREFIXES) && len) {
+ rprintf(FERROR,
+ "'!' rule has trailing characters: %s\n", p);
+ exit_cleanup(RERR_SYNTAX);
+ }
+ if (len > 1)
+ new_mflags &= ~MATCHFLG_CLEAR_LIST;
+ } else if (!len && !(new_mflags & MATCHFLG_CVS_IGNORE)) {
+ rprintf(FERROR, "unexpected end of filter rule: %s\n", p);
+ exit_cleanup(RERR_SYNTAX);
+ }
- if (*p == '!' && len == 1 && !(xflags & XFLG_NO_PREFIXES))
- *incl_ptr = -1;
+ /* --delete-excluded turns an un-modified include/exclude into a
+ * sender-side rule. We also affect per-dir merge files that take
+ * no prefixes as a simple optimization. */
+ if (delete_excluded
+ && !(new_mflags & (MATCHFLG_RECEIVER_SIDE|MATCHFLG_SENDER_SIDE))
+ && (!(new_mflags & MATCHFLG_PERDIR_MERGE)
+ || new_mflags & MATCHFLG_NO_PREFIXES))
+ new_mflags |= MATCHFLG_SENDER_SIDE;
*len_ptr = len;
+ *mflags_ptr = new_mflags;
return (const char *)s;
}
-void add_exclude(struct exclude_struct ***listp, const char *pattern, int xflags)
+static char default_cvsignore[] =
+ /* These default ignored items come from the CVS manual. */
+ "RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS"
+ " .make.state .nse_depinfo *~ #* .#* ,* _$* *$"
+ " *.old *.bak *.BAK *.orig *.rej .del-*"
+ " *.a *.olb *.o *.obj *.so *.exe"
+ " *.Z *.elc *.ln core"
+ /* The rest we added to suit ourself. */
+ " .svn/ .git/ .bzr/";
+
+static void get_cvs_excludes(uint32 mflags)
{
- struct exclude_struct **list = *listp;
- int pat_len, list_len = 0;
- int incl, add_cnt = 1;
- const char *cp;
+ static int initialized = 0;
+ char *p, fname[MAXPATHLEN];
- if (!pattern)
+ if (initialized)
return;
+ initialized = 1;
- if (xflags & XFLG_WORD_SPLIT) {
- int add = 0;
- /* Count maximum extra tokens we might encounter. */
- for (cp = pattern; *cp; cp++) {
- if (isspace(*(unsigned char *)cp)) {
- add_cnt += add;
- add = 0;
- } else
- add = 1;
- }
- }
+ parse_rule(&cvs_filter_list, default_cvsignore,
+ mflags | (protocol_version >= 30 ? MATCHFLG_PERISHABLE : 0),
+ 0);
+
+ p = module_id >= 0 && lp_use_chroot(module_id) ? "/" : getenv("HOME");
+ if (p && pathjoin(fname, MAXPATHLEN, p, ".cvsignore") < MAXPATHLEN)
+ parse_filter_file(&cvs_filter_list, fname, mflags, 0);
- cp = get_exclude_tok(pattern, &pat_len, &incl, xflags);
- if (!pat_len)
+ parse_rule(&cvs_filter_list, getenv("CVSIGNORE"), mflags, 0);
+}
+
+
+void parse_rule(struct filter_list_struct *listp, const char *pattern,
+ uint32 mflags, int xflags)
+{
+ unsigned int pat_len;
+ uint32 new_mflags;
+ const char *cp, *p;
+
+ if (!pattern)
return;
- /* Check for the special "!" token that clears the list. Yes, we
- * only honor it at the start of a XFLG_WORD_SPLIT string. */
- if (incl < 0) {
- free_exclude_list(listp);
- if (!--add_cnt)
- return;
- cp = get_exclude_tok(cp + pat_len, &pat_len, &incl, xflags);
- if (!pat_len)
- return;
- }
+ while (1) {
+ /* Remember that the returned string is NOT '\0' terminated! */
+ cp = parse_rule_tok(pattern, mflags, xflags,
+ &pat_len, &new_mflags);
+ if (!cp)
+ break;
- if (list)
- for ( ; list[list_len]; list_len++) {}
+ pattern = cp + pat_len;
- list = *listp = realloc_array(list, struct exclude_struct *,
- list_len + add_cnt + 1);
- if (!list)
- out_of_memory("add_exclude");
+ if (pat_len >= MAXPATHLEN) {
+ rprintf(FERROR, "discarding over-long filter: %.*s\n",
+ (int)pat_len, cp);
+ continue;
+ }
- while (pat_len) {
- list[list_len++] = make_exclude(cp, pat_len, incl);
+ if (new_mflags & MATCHFLG_CLEAR_LIST) {
+ if (verbose > 2) {
+ rprintf(FINFO,
+ "[%s] clearing filter list%s\n",
+ who_am_i(), listp->debug_type);
+ }
+ clear_filter_list(listp);
+ continue;
+ }
- if (verbose > 2) {
- rprintf(FINFO, "[%s] add_exclude(%s,%s)\n",
- who_am_i(), cp,
- incl ? "include" : "exclude");
+ if (new_mflags & MATCHFLG_MERGE_FILE) {
+ unsigned int len;
+ if (!pat_len) {
+ cp = ".cvsignore";
+ pat_len = 10;
+ }
+ len = pat_len;
+ if (new_mflags & MATCHFLG_EXCLUDE_SELF) {
+ const char *name = cp + len;
+ while (name > cp && name[-1] != '/') name--;
+ len -= name - cp;
+ add_rule(listp, name, len, 0, 0);
+ new_mflags &= ~MATCHFLG_EXCLUDE_SELF;
+ len = pat_len;
+ }
+ if (new_mflags & MATCHFLG_PERDIR_MERGE) {
+ if (parent_dirscan) {
+ if (!(p = parse_merge_name(cp, &len,
+ module_dirlen)))
+ continue;
+ add_rule(listp, p, len, new_mflags, 0);
+ continue;
+ }
+ } else {
+ if (!(p = parse_merge_name(cp, &len, 0)))
+ continue;
+ parse_filter_file(listp, p, new_mflags,
+ XFLG_FATAL_ERRORS);
+ continue;
+ }
}
- cp = get_exclude_tok(cp + pat_len, &pat_len, &incl, xflags);
- }
- list[list_len] = NULL;
+ add_rule(listp, cp, pat_len, new_mflags, xflags);
+
+ if (new_mflags & MATCHFLG_CVS_IGNORE
+ && !(new_mflags & MATCHFLG_MERGE_FILE))
+ get_cvs_excludes(new_mflags);
+ }
}
-void add_exclude_file(struct exclude_struct ***listp, const char *fname,
- int xflags)
+void parse_filter_file(struct filter_list_struct *listp, const char *fname,
+ uint32 mflags, int xflags)
{
FILE *fp;
- char line[MAXPATHLEN];
- char *eob = line + MAXPATHLEN - 1;
- extern int eol_nulls;
+ char line[BIGPATHBUFLEN];
+ char *eob = line + sizeof line - 1;
+ int word_split = mflags & MATCHFLG_WORD_SPLIT;
if (!fname || !*fname)
return;
- if (*fname != '-' || fname[1])
- fp = fopen(fname, "rb");
- else
+ if (*fname != '-' || fname[1] || am_server) {
+ if (daemon_filter_list.head) {
+ strlcpy(line, fname, sizeof line);
+ clean_fname(line, CFN_COLLAPSE_DOT_DOT_DIRS);
+ if (check_filter(&daemon_filter_list, line, 0) < 0)
+ fp = NULL;
+ else
+ fp = fopen(line, "rb");
+ } else
+ fp = fopen(fname, "rb");
+ } else
fp = stdin;
+
+ if (verbose > 2) {
+ rprintf(FINFO, "[%s] parse_filter_file(%s,%x,%x)%s\n",
+ who_am_i(), fname, mflags, xflags,
+ fp ? "" : " [not found]");
+ }
+
if (!fp) {
if (xflags & XFLG_FATAL_ERRORS) {
rsyserr(FERROR, errno,
- "failed to open %s file %s",
- xflags & XFLG_DEF_INCLUDE ? "include" : "exclude",
+ "failed to open %sclude file %s",
+ mflags & MATCHFLG_INCLUDE ? "in" : "ex",
fname);
exit_cleanup(RERR_FILEIO);
}
return;
}
+ dirbuf[dirbuf_len] = '\0';
while (1) {
char *s = line;
- int ch;
+ int ch, overflow = 0;
while (1) {
if ((ch = getc(fp)) == EOF) {
- if (ferror(fp) && errno == EINTR)
+ if (ferror(fp) && errno == EINTR) {
+ clearerr(fp);
continue;
+ }
break;
}
+ if (word_split && isspace(ch))
+ break;
if (eol_nulls? !ch : (ch == '\n' || ch == '\r'))
break;
if (s < eob)
*s++ = ch;
+ else
+ overflow = 1;
}
- *s = '\0';
- if (*line && *line != ';' && *line != '#') {
- /* Skip lines starting with semicolon or pound.
- * It probably wouldn't cause any harm to not skip
- * them but there's no need to save them. */
- add_exclude(listp, line, xflags);
+ if (overflow) {
+ rprintf(FERROR, "discarding over-long filter: %s...\n", line);
+ s = line;
}
+ *s = '\0';
+ /* Skip an empty token and (when line parsing) comments. */
+ if (*line && (word_split || (*line != ';' && *line != '#')))
+ parse_rule(listp, line, mflags, xflags);
if (ch == EOF)
break;
}
fclose(fp);
}
-
-void send_exclude_list(int f)
+/* If the "for_xfer" flag is set, the prefix is made compatible with the
+ * current protocol_version (if possible) or a NULL is returned (if not
+ * possible). */
+char *get_rule_prefix(int match_flags, const char *pat, int for_xfer,
+ unsigned int *plen_ptr)
{
- int i;
- extern int list_only, recurse;
-
- /* This is a complete hack - blame Rusty.
- *
- * FIXME: This pattern shows up in the output of
- * report_exclude_result(), which is not ideal. */
- if (list_only && !recurse)
- add_exclude(&exclude_list, "/*/*", 0);
-
- if (!exclude_list) {
- write_int(f, 0);
- return;
+ static char buf[MAX_RULE_PREFIX+1];
+ char *op = buf;
+ int legal_len = for_xfer && protocol_version < 29 ? 1 : MAX_RULE_PREFIX-1;
+
+ if (match_flags & MATCHFLG_PERDIR_MERGE) {
+ if (legal_len == 1)
+ return NULL;
+ *op++ = ':';
+ } else if (match_flags & MATCHFLG_INCLUDE)
+ *op++ = '+';
+ else if (legal_len != 1
+ || ((*pat == '-' || *pat == '+') && pat[1] == ' '))
+ *op++ = '-';
+ else
+ legal_len = 0;
+
+ if (match_flags & MATCHFLG_NEGATE)
+ *op++ = '!';
+ if (match_flags & MATCHFLG_CVS_IGNORE)
+ *op++ = 'C';
+ else {
+ if (match_flags & MATCHFLG_NO_INHERIT)
+ *op++ = 'n';
+ if (match_flags & MATCHFLG_WORD_SPLIT)
+ *op++ = 'w';
+ if (match_flags & MATCHFLG_NO_PREFIXES) {
+ if (match_flags & MATCHFLG_INCLUDE)
+ *op++ = '+';
+ else
+ *op++ = '-';
+ }
}
+ if (match_flags & MATCHFLG_EXCLUDE_SELF)
+ *op++ = 'e';
+ if (match_flags & MATCHFLG_SENDER_SIDE
+ && (!for_xfer || protocol_version >= 29))
+ *op++ = 's';
+ if (match_flags & MATCHFLG_RECEIVER_SIDE
+ && (!for_xfer || protocol_version >= 29
+ || (delete_excluded && am_sender)))
+ *op++ = 'r';
+ if (match_flags & MATCHFLG_PERISHABLE) {
+ if (!for_xfer || protocol_version >= 30)
+ *op++ = 'p';
+ else if (am_sender)
+ return NULL;
+ }
+ if (op - buf > legal_len)
+ return NULL;
+ if (legal_len)
+ *op++ = ' ';
+ *op = '\0';
+ if (plen_ptr)
+ *plen_ptr = op - buf;
+ return buf;
+}
- for (i = 0; exclude_list[i]; i++) {
- unsigned int l;
- char p[MAXPATHLEN+1];
-
- l = strlcpy(p, exclude_list[i]->pattern, sizeof p);
- if (l == 0 || l >= MAXPATHLEN)
+static void send_rules(int f_out, struct filter_list_struct *flp)
+{
+ struct filter_struct *ent, *prev = NULL;
+
+ for (ent = flp->head; ent; ent = ent->next) {
+ unsigned int len, plen, dlen;
+ int elide = 0;
+ char *p;
+
+ /* Note we need to check delete_excluded here in addition to
+ * the code in parse_rule_tok() because some rules may have
+ * been added before we found the --delete-excluded option.
+ * We must also elide any CVS merge-file rules to avoid a
+ * backward compatibility problem, and we elide any no-prefix
+ * merge files as an optimization (since they can only have
+ * include/exclude rules). */
+ if (ent->match_flags & MATCHFLG_SENDER_SIDE)
+ elide = am_sender ? 1 : -1;
+ if (ent->match_flags & MATCHFLG_RECEIVER_SIDE)
+ elide = elide ? 0 : am_sender ? -1 : 1;
+ else if (delete_excluded && !elide
+ && (!(ent->match_flags & MATCHFLG_PERDIR_MERGE)
+ || ent->match_flags & MATCHFLG_NO_PREFIXES))
+ elide = am_sender ? 1 : -1;
+ if (elide < 0) {
+ if (prev)
+ prev->next = ent->next;
+ else
+ flp->head = ent->next;
+ } else
+ prev = ent;
+ if (elide > 0)
continue;
- if (exclude_list[i]->directory) {
- p[l++] = '/';
- p[l] = '\0';
+ if (ent->match_flags & MATCHFLG_CVS_IGNORE
+ && !(ent->match_flags & MATCHFLG_MERGE_FILE)) {
+ int f = am_sender || protocol_version < 29 ? f_out : -2;
+ send_rules(f, &cvs_filter_list);
+ if (f == f_out)
+ continue;
}
-
- if (exclude_list[i]->include) {
- write_int(f, l + 2);
- write_buf(f, "+ ", 2);
- } else if ((*p == '-' || *p == '+') && p[1] == ' ') {
- write_int(f, l + 2);
- write_buf(f, "- ", 2);
- } else
- write_int(f, l);
- write_buf(f, p, l);
+ p = get_rule_prefix(ent->match_flags, ent->pattern, 1, &plen);
+ if (!p) {
+ rprintf(FERROR,
+ "filter rules are too modern for remote rsync.\n");
+ exit_cleanup(RERR_PROTOCOL);
+ }
+ if (f_out < 0)
+ continue;
+ len = strlen(ent->pattern);
+ dlen = ent->match_flags & MATCHFLG_DIRECTORY ? 1 : 0;
+ if (!(plen + len + dlen))
+ continue;
+ write_int(f_out, plen + len + dlen);
+ if (plen)
+ write_buf(f_out, p, plen);
+ write_buf(f_out, ent->pattern, len);
+ if (dlen)
+ write_byte(f_out, '/');
}
-
- write_int(f, 0);
+ flp->tail = prev;
}
-
-void recv_exclude_list(int f)
+/* This is only called by the client. */
+void send_filter_list(int f_out)
{
- char line[MAXPATHLEN+1]; /* Allows a trailing slash on a max-len dir */
- unsigned int l;
-
- while ((l = read_int(f)) != 0) {
- if (l >= sizeof line)
- overflow("recv_exclude_list");
- read_sbuf(f, line, l);
- add_exclude(&exclude_list, line, 0);
+ int receiver_wants_list = prune_empty_dirs
+ || (delete_mode && (!delete_excluded || protocol_version >= 29));
+
+ if (local_server || (am_sender && !receiver_wants_list))
+ f_out = -1;
+ if (cvs_exclude && am_sender) {
+ if (protocol_version >= 29)
+ parse_rule(&filter_list, ":C", 0, 0);
+ parse_rule(&filter_list, "-C", 0, 0);
}
-}
+ send_rules(f_out, &filter_list);
-static char default_cvsignore[] =
- /* These default ignored items come from the CVS manual. */
- "RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS"
- " .make.state .nse_depinfo *~ #* .#* ,* _$* *$"
- " *.old *.bak *.BAK *.orig *.rej .del-*"
- " *.a *.olb *.o *.obj *.so *.exe"
- " *.Z *.elc *.ln core"
- /* The rest we added to suit ourself. */
- " .svn/";
+ if (f_out >= 0)
+ write_int(f_out, 0);
-void add_cvs_excludes(void)
-{
- char fname[MAXPATHLEN];
- char *p;
+ if (cvs_exclude) {
+ if (!am_sender || protocol_version < 29)
+ parse_rule(&filter_list, ":C", 0, 0);
+ if (!am_sender)
+ parse_rule(&filter_list, "-C", 0, 0);
+ }
+}
- add_exclude(&exclude_list, default_cvsignore,
- XFLG_WORD_SPLIT | XFLG_NO_PREFIXES);
+/* This is only called by the server. */
+void recv_filter_list(int f_in)
+{
+ char line[BIGPATHBUFLEN];
+ int xflags = protocol_version >= 29 ? 0 : XFLG_OLD_PREFIXES;
+ int receiver_wants_list = prune_empty_dirs
+ || (delete_mode
+ && (!delete_excluded || protocol_version >= 29));
+ unsigned int len;
+
+ if (!local_server && (am_sender || receiver_wants_list)) {
+ while ((len = read_int(f_in)) != 0) {
+ if (len >= sizeof line)
+ overflow_exit("recv_rules");
+ read_sbuf(f_in, line, len);
+ parse_rule(&filter_list, line, 0, xflags);
+ }
+ }
- if ((p = getenv("HOME"))
- && pathjoin(fname, sizeof fname, p, ".cvsignore") < sizeof fname) {
- add_exclude_file(&exclude_list, fname,
- XFLG_WORD_SPLIT | XFLG_NO_PREFIXES);
+ if (cvs_exclude) {
+ if (local_server || am_sender || protocol_version < 29)
+ parse_rule(&filter_list, ":C", 0, 0);
+ if (local_server || am_sender)
+ parse_rule(&filter_list, "-C", 0, 0);
}
- add_exclude(&exclude_list, getenv("CVSIGNORE"),
- XFLG_WORD_SPLIT | XFLG_NO_PREFIXES);
+ if (local_server) /* filter out any rules that aren't for us. */
+ send_rules(-1, &filter_list);
}
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff