-/*
- Copyright (C) Andrew Tridgell 1996
- Copyright (C) Paul Mackerras 1996
-
- 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
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
+/* -*- c-file-style: "linux" -*-
+ *
+ * Copyright (C) 1996-2001 by Andrew Tridgell <tridge@samba.org>
+ * Copyright (C) 1996 by Paul Mackerras
+ * Copyright (C) 2002 by Martin Pool
+ *
+ * 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
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
/* 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 delete_mode;
+extern int eol_nulls;
+extern int list_only;
+extern int recurse;
+extern int io_error;
+extern int sanitize_paths;
+extern int protocol_version;
+
+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 server_filter_list = { 0, 0, "server " };
+
+/* Need room enough for ":MODS " prefix plus some room to grow. */
+#define MAX_RULE_PREFIX (16)
+
+/* 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.
+ */
+
+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);
+}
-static struct exclude_struct **exclude_list;
+/* Build a filter structure given a filter pattern. The value in "pat"
+ * is not null-terminated. */
+static void make_filter(struct filter_list_struct *listp, const char *pat,
+ unsigned int pat_len, unsigned int mflags)
+{
+ struct filter_struct *ret;
+ const char *cp;
+ unsigned int ex_len;
+
+ if (verbose > 2) {
+ rprintf(FINFO, "[%s] make_filter(%.*s, %s%s)\n",
+ who_am_i(), (int)pat_len, pat,
+ mflags & MATCHFLG_PERDIR_MERGE ? "per-dir-merge"
+ : mflags & MATCHFLG_INCLUDE ? "include" : "exclude",
+ listp->debug_type);
+ }
-/* build an exclude structure given a exclude pattern */
-static struct exclude_struct *make_exclude(char *pattern, int include)
+ ret = new(struct filter_struct);
+ if (!ret)
+ out_of_memory("make_filter");
+
+ memset(ret, 0, sizeof ret[0]);
+
+ if (mflags & MATCHFLG_ABS_PATH) {
+ if (*pat != '/') {
+ mflags &= ~MATCHFLG_ABS_PATH;
+ ex_len = 0;
+ } else
+ ex_len = dirbuf_len - module_dirlen - 1;
+ } else
+ ex_len = 0;
+ ret->pattern = new_array(char, ex_len + pat_len + 1);
+ if (!ret->pattern)
+ out_of_memory("make_filter");
+ if (ex_len)
+ memcpy(ret->pattern, dirbuf + module_dirlen, ex_len);
+ strlcpy(ret->pattern + ex_len, pat, pat_len + 1);
+ pat_len += ex_len;
+
+ if (strpbrk(ret->pattern, "*[?")) {
+ mflags |= MATCHFLG_WILD;
+ if ((cp = strstr(ret->pattern, "**")) != NULL) {
+ mflags |= MATCHFLG_WILD2;
+ /* If the pattern starts with **, note that. */
+ if (cp == ret->pattern)
+ mflags |= MATCHFLG_WILD2_PREFIX;
+ }
+ }
+
+ if (pat_len > 1 && ret->pattern[pat_len-1] == '/') {
+ ret->pattern[pat_len-1] = 0;
+ mflags |= MATCHFLG_DIRECTORY;
+ }
+
+ 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("make_filter");
+ lp->head = lp->tail = NULL;
+ if (asprintf(&lp->debug_type, " (per-dir %s)", cp) < 0)
+ out_of_memory("make_filter");
+ 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("make_filter");
+ }
+ mergelist_parents[mergelist_cnt++] = ret;
+ } else {
+ for (cp = ret->pattern; (cp = strchr(cp, '/')) != NULL; cp++)
+ ret->u.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)
{
- struct exclude_struct *ret;
+ 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);
+ }
+ }
- ret = (struct exclude_struct *)malloc(sizeof(*ret));
- if (!ret) out_of_memory("make_exclude");
+ listp->head = listp->tail = NULL;
+}
- memset(ret, 0, sizeof(*ret));
+/* 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;
+ }
- if (strncmp(pattern,"- ",2) == 0) {
- pattern += 2;
- } else if (strncmp(pattern,"+ ",2) == 0) {
- ret->include = 1;
- pattern += 2;
+ 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)) {
+ rprintf(FERROR, "merge-file name overflows: %s\n",
+ merge_file);
+ return NULL;
+ }
} else {
- ret->include = include;
+ strlcpy(fn, merge_file, len_ptr ? *len_ptr + 1 : MAXPATHLEN);
+ clean_fname(fn, 1);
}
+
+ fn_len = strlen(fn);
+ if (fn == buf)
+ goto done;
+
+ 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, 1);
+
+ done:
+ if (len_ptr)
+ *len_ptr = fn_len;
+ return buf;
+}
- ret->pattern = strdup(pattern);
+/* 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, 1);
+ 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);
+}
+
+/* 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, int flags)
+{
+ char buf[MAXPATHLEN];
+ char *x, *y, *pat = ex->pattern;
+ unsigned int len;
+
+ if (!(x = parse_merge_name(pat, NULL, 0)) || *x != '/')
+ return 0;
- if (!ret->pattern) out_of_memory("make_exclude");
+ 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);
- if (strpbrk(pattern, "*[?")) {
- ret->regular_exp = 1;
- ret->fnmatch_flags = FNM_PATHNAME;
- if (strstr(pattern, "**")) {
- static int tested;
- if (!tested) {
- tested = 1;
- if (fnmatch("a/b/*", "a/b/c/d", FNM_PATHNAME)==0) {
- rprintf(FERROR,"WARNING: fnmatch FNM_PATHNAME is broken on your system\n");
- }
- }
- ret->fnmatch_flags = 0;
- }
+ len = clean_fname(buf, 1);
+ 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));
+ add_filter_file(lp, buf, flags | XFLG_ABS_PATH);
+ 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;
+}
- if (strlen(pattern) > 1 && pattern[strlen(pattern)-1] == '/') {
- ret->pattern[strlen(pattern)-1] = 0;
- ret->directory = 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));
}
- if (!strchr(ret->pattern,'/')) {
- ret->local = 1;
+ /* Note: add_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;
+ int flags = 0;
+
+ 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_WORD_SPLIT)
+ flags |= XFLG_WORD_SPLIT;
+ if (ex->match_flags & MATCHFLG_NO_PREFIXES)
+ flags |= XFLG_NO_PREFIXES;
+ if (ex->match_flags & MATCHFLG_INCLUDE)
+ flags |= XFLG_DEF_INCLUDE;
+ else if (ex->match_flags & MATCHFLG_NO_PREFIXES)
+ flags |= XFLG_DEF_EXCLUDE;
+
+ if (ex->match_flags & MATCHFLG_FINISH_SETUP) {
+ ex->match_flags &= ~MATCHFLG_FINISH_SETUP;
+ if (setup_merge_file(ex, lp, flags))
+ set_filter_dir(dir, dirlen);
+ }
+
+ if (strlcpy(dirbuf + dirbuf_len, ex->pattern,
+ MAXPATHLEN - dirbuf_len) < MAXPATHLEN - dirbuf_len)
+ add_filter_file(lp, dirbuf, flags | XFLG_ABS_PATH);
+ 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 ret;
+ return (void*)push;
}
-static void free_exclude(struct exclude_struct *ex)
+void pop_local_filters(void *mem)
{
- free(ex->pattern);
- memset(ex,0,sizeof(*ex));
- free(ex);
+ struct filter_list_struct *ap, *pop = (struct filter_list_struct*)mem;
+ int i;
+
+ for (i = mergelist_cnt; i-- > 0; ) {
+ struct filter_struct *ex = mergelist_parents[i];
+ struct filter_list_struct *lp = ex->u.mergelist;
+
+ if (verbose > 2) {
+ rprintf(FINFO, "[%s] popping filter list%s\n",
+ who_am_i(), lp->debug_type);
+ }
+
+ clear_filter_list(lp);
+ }
+
+ if (!pop)
+ return;
+
+ for (i = 0, ap = pop; i < mergelist_cnt; i++) {
+ memcpy(mergelist_parents[i]->u.mergelist, ap++,
+ sizeof (struct filter_list_struct));
+ }
+
+ free(pop);
}
-static int check_one_exclude(char *name,struct exclude_struct *ex,
- STRUCT_STAT *st)
+static int rule_matches(char *name, struct filter_struct *ex, int name_is_dir)
{
- char *p;
- int match_start=0;
+ char *p, full_name[MAXPATHLEN];
+ int match_start = 0;
char *pattern = ex->pattern;
- if (ex->local && (p=strrchr(name,'/')))
- name = p+1;
+ if (!*name)
+ return 0;
- if (!name[0]) return 0;
+ /* 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->u.slash_cnt && !(ex->match_flags & MATCHFLG_WILD2)) {
+ if ((p = strrchr(name,'/')) != NULL)
+ name = p+1;
+ }
+ else if (ex->match_flags & MATCHFLG_ABS_PATH && *name != '/'
+ && curr_dir_len > module_dirlen + 1) {
+ pathjoin(full_name, sizeof full_name,
+ curr_dir + module_dirlen + 1, name);
+ name = full_name;
+ }
- if (ex->directory && !S_ISDIR(st->st_mode)) return 0;
+ if (ex->match_flags & MATCHFLG_DIRECTORY && !name_is_dir)
+ return 0;
- if (*pattern == '/' && *name != '/') {
+ if (*pattern == '/') {
match_start = 1;
pattern++;
+ if (*name == '/')
+ name++;
}
- if (ex->regular_exp) {
- if (fnmatch(pattern, name, ex->fnmatch_flags) == 0) {
+ if (ex->match_flags & MATCHFLG_WILD) {
+ /* A non-anchored match with an infix slash and no "**"
+ * needs to match the last slash_cnt+1 name elements. */
+ if (!match_start && ex->u.slash_cnt
+ && !(ex->match_flags & MATCHFLG_WILD2)) {
+ int cnt = ex->u.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;
} else {
int l1 = strlen(name);
int l2 = strlen(pattern);
- if (l2 <= l1 &&
+ if (l2 <= l1 &&
strcmp(name+(l1-l2),pattern) == 0 &&
- (l1==l2 || (!match_start && name[l1-(l2+1)] == '/'))) {
+ (l1==l2 || name[l1-(l2+1)] == '/')) {
return 1;
}
}
}
-int check_exclude(char *name,struct exclude_struct **local_exclude_list,
- STRUCT_STAT *st)
+static void report_filter_result(char const *name,
+ struct filter_struct const *ent,
+ int name_is_dir, const char *type)
{
- int n;
-
- if (name && (name[0] == '.') && !name[1])
- /* never exclude '.', even if somebody does --exclude '*' */
- return 0;
-
- if (exclude_list) {
- for (n=0; exclude_list[n]; n++)
- if (check_one_exclude(name,exclude_list[n],st))
- return !exclude_list[n]->include;
+ /* If a trailing slash is present to match only directories,
+ * then it is stripped out by make_filter. 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%s\n",
+ who_am_i(),
+ ent->match_flags & MATCHFLG_INCLUDE ? "in" : "ex",
+ name_is_dir ? "directory" : "file", name, ent->pattern,
+ ent->match_flags & MATCHFLG_DIRECTORY ? "/" : "", type);
}
-
- if (local_exclude_list) {
- for (n=0; local_exclude_list[n]; n++)
- if (check_one_exclude(name,local_exclude_list[n],st))
- return !local_exclude_list[n]->include;
- }
-
- return 0;
}
-void add_exclude_list(char *pattern,struct exclude_struct ***list, int include)
+/*
+ * 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_filter(struct filter_list_struct *listp, char *name, int name_is_dir)
{
- int len=0;
- if (list && *list)
- for (; (*list)[len]; len++) ;
-
- if (strcmp(pattern,"!") == 0) {
- if (verbose > 2)
- rprintf(FINFO,"clearing exclude list\n");
- while ((len)--) {
- free_exclude((*list)[len]);
+ struct filter_struct *ent;
+
+ for (ent = listp->head; ent; ent = ent->next) {
+ if (ent->match_flags & MATCHFLG_PERDIR_MERGE) {
+ int rc = check_filter(ent->u.mergelist, 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;
}
- free((*list));
- *list = NULL;
- return;
}
- *list = (struct exclude_struct **)Realloc(*list,sizeof(struct exclude_struct *)*(len+2));
-
- if (!*list || !((*list)[len] = make_exclude(pattern, include)))
- out_of_memory("add_exclude");
-
- if (verbose > 2)
- rprintf(FINFO,"add_exclude(%s)\n",pattern);
-
- (*list)[len+1] = NULL;
+ return 0;
}
-void add_exclude(char *pattern, int include)
-{
- add_exclude_list(pattern,&exclude_list, include);
-}
-struct exclude_struct **make_exclude_list(char *fname,
- struct exclude_struct **list1,
- int fatal, int include)
+/* 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 parses the "!" (list-
+ * clearing) token and (if xflags does NOT contain XFLG_NO_PREFIXES) the
+ * +/- prefixes for overriding the include/exclude mode. The *flag_ptr
+ * value will also be set to the MATCHFLG_* bits for the current token.
+ */
+static const char *get_filter_tok(const char *p, int xflags,
+ unsigned int *len_ptr, unsigned int *flag_ptr)
{
- struct exclude_struct **list=list1;
- FILE *f = fopen(fname,"r");
- char line[MAXPATHLEN];
- if (!f) {
- if (fatal) {
- rprintf(FERROR,"%s : %s\n",fname,strerror(errno));
- exit_cleanup(RERR_FILEIO);
+ const unsigned char *s = (const unsigned char *)p;
+ unsigned int len, mflags = 0;
+ int empty_pat_is_OK = 0;
+
+ if (xflags & XFLG_WORD_SPLIT) {
+ /* Skip over any initial whitespace. */
+ while (isspace(*s))
+ s++;
+ /* Update to point to real start of rule. */
+ p = (const char *)s;
+ }
+ if (!*s)
+ return NULL;
+
+ /* Figure out what kind of a filter rule "s" is pointing at. */
+ if (!(xflags & (XFLG_DEF_INCLUDE | XFLG_DEF_EXCLUDE))) {
+ char *mods = "";
+ switch (*s) {
+ case ':':
+ mflags |= MATCHFLG_PERDIR_MERGE
+ | MATCHFLG_FINISH_SETUP;
+ /* FALL THROUGH */
+ case '.':
+ mflags |= MATCHFLG_MERGE_FILE;
+ mods = "-+Cens";
+ break;
+ case '+':
+ mflags |= MATCHFLG_INCLUDE;
+ break;
+ case '-':
+ break;
+ case '!':
+ mflags |= MATCHFLG_CLEAR_LIST;
+ mods = NULL;
+ break;
+ default:
+ rprintf(FERROR, "Unknown filter rule: %s\n", p);
+ exit_cleanup(RERR_SYNTAX);
}
- return list;
- }
-
- while (fgets(line,MAXPATHLEN,f)) {
- int l = strlen(line);
- if (l && line[l-1] == '\n') l--;
- line[l] = 0;
- if (line[0] && (line[0] != ';') && (line[0] != '#')) {
- /* 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_list(line,&list,include);
+ while (mods && *++s && *s != ' ' && *s != '=' && *s != '_') {
+ if (strchr(mods, *s) == NULL) {
+ if (xflags & XFLG_WORD_SPLIT && isspace(*s)) {
+ s--;
+ break;
+ }
+ rprintf(FERROR,
+ "unknown option '%c' in filter rule: %s\n",
+ *s, p);
+ exit_cleanup(RERR_SYNTAX);
+ }
+ switch (*s) {
+ case '-':
+ mflags |= MATCHFLG_NO_PREFIXES;
+ break;
+ case '+':
+ mflags |= MATCHFLG_NO_PREFIXES
+ | MATCHFLG_INCLUDE;
+ break;
+ case 'C':
+ empty_pat_is_OK = 1;
+ mflags |= MATCHFLG_NO_PREFIXES
+ | MATCHFLG_WORD_SPLIT
+ | MATCHFLG_NO_INHERIT;
+ break;
+ case 'e':
+ mflags |= MATCHFLG_EXCLUDE_SELF;
+ break;
+ case 'n':
+ mflags |= MATCHFLG_NO_INHERIT;
+ break;
+ case 's':
+ mflags |= MATCHFLG_WORD_SPLIT;
+ break;
+ }
}
+ if (*s)
+ s++;
+ } else if (!(xflags & XFLG_NO_PREFIXES)
+ && (*s == '-' || *s == '+') && s[1] == ' ') {
+ if (*s == '+')
+ mflags |= MATCHFLG_INCLUDE;
+ s += 2;
+ } else {
+ if (xflags & XFLG_DEF_INCLUDE)
+ mflags |= MATCHFLG_INCLUDE;
+ if (*s == '!')
+ mflags |= MATCHFLG_CLEAR_LIST; /* Tentative! */
}
- fclose(f);
- return list;
-}
+ if (xflags & XFLG_DIRECTORY)
+ mflags |= MATCHFLG_DIRECTORY;
+
+ if (xflags & XFLG_WORD_SPLIT) {
+ const unsigned char *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);
+
+ if (mflags & MATCHFLG_CLEAR_LIST) {
+ if (!(xflags & (XFLG_DEF_INCLUDE | XFLG_DEF_EXCLUDE)) && len) {
+ rprintf(FERROR,
+ "'!' rule has trailing characters: %s\n", p);
+ exit_cleanup(RERR_SYNTAX);
+ }
+ if (len > 1)
+ mflags &= ~MATCHFLG_CLEAR_LIST;
+ } else if (!len && !empty_pat_is_OK) {
+ rprintf(FERROR, "unexpected end of filter rule: %s\n", p);
+ exit_cleanup(RERR_SYNTAX);
+ }
-void add_exclude_file(char *fname,int fatal,int include)
-{
- if (!fname || !*fname) return;
+ if (xflags & XFLG_ABS_PATH)
+ mflags |= MATCHFLG_ABS_PATH;
- exclude_list = make_exclude_list(fname,exclude_list,fatal,include);
+ *len_ptr = len;
+ *flag_ptr = mflags;
+ return (const char *)s;
}
-void send_exclude_list(int f)
+void add_filter(struct filter_list_struct *listp, const char *pattern,
+ int xflags)
{
- int i;
- extern int remote_version;
+ unsigned int pat_len, mflags;
+ const char *cp, *p;
- if (!exclude_list) {
- write_int(f,0);
+ if (!pattern)
return;
- }
-
- for (i=0;exclude_list[i];i++) {
- int l;
- char pattern[MAXPATHLEN];
- strlcpy(pattern,exclude_list[i]->pattern,sizeof(pattern));
- if (exclude_list[i]->directory) strlcat(pattern,"/", sizeof(pattern));
+ while (1) {
+ /* Remember that the returned string is NOT '\0' terminated! */
+ cp = get_filter_tok(pattern, xflags, &pat_len, &mflags);
+ if (!cp)
+ break;
+ if (pat_len >= MAXPATHLEN) {
+ rprintf(FERROR, "discarding over-long filter: %s\n",
+ cp);
+ continue;
+ }
+ pattern = cp + pat_len;
- l = strlen(pattern);
- if (l == 0) continue;
- if (exclude_list[i]->include) {
- if (remote_version < 19) {
- rprintf(FERROR,"remote rsync does not support include syntax - aborting\n");
- exit_cleanup(RERR_UNSUPPORTED);
+ if (mflags & MATCHFLG_CLEAR_LIST) {
+ if (verbose > 2) {
+ rprintf(FINFO,
+ "[%s] clearing filter list%s\n",
+ who_am_i(), listp->debug_type);
}
- write_int(f,l+2);
- write_buf(f,"+ ",2);
- } else {
- write_int(f,l);
+ clear_filter_list(listp);
+ continue;
}
- write_buf(f,pattern,l);
- }
- write_int(f,0);
-}
+ if (!pat_len) {
+ cp = ".cvsignore";
+ pat_len = 10;
+ }
+ if (mflags & MATCHFLG_MERGE_FILE) {
+ unsigned int len = pat_len;
+ if (mflags & MATCHFLG_EXCLUDE_SELF) {
+ const char *name = strrchr(cp, '/');
+ if (name)
+ len -= ++name - cp;
+ else
+ name = cp;
+ make_filter(listp, name, len, 0);
+ mflags &= ~MATCHFLG_EXCLUDE_SELF;
+ len = pat_len;
+ }
+ if (mflags & MATCHFLG_PERDIR_MERGE) {
+ if (parent_dirscan) {
+ if (!(p = parse_merge_name(cp, &len, module_dirlen)))
+ continue;
+ make_filter(listp, p, len, mflags);
+ continue;
+ }
+ } else {
+ int flgs = XFLG_FATAL_ERRORS;
+ if (!(p = parse_merge_name(cp, &len, 0)))
+ continue;
+ if (mflags & MATCHFLG_INCLUDE)
+ flgs |= XFLG_DEF_INCLUDE;
+ else if (mflags & MATCHFLG_NO_PREFIXES)
+ flgs |= XFLG_DEF_EXCLUDE;
+ add_filter_file(listp, p, flgs);
+ continue;
+ }
+ }
-void recv_exclude_list(int f)
-{
- char line[MAXPATHLEN];
- int l;
- while ((l=read_int(f))) {
- if (l >= MAXPATHLEN) overflow("recv_exclude_list");
- read_sbuf(f,line,l);
- add_exclude(line,0);
+ make_filter(listp, cp, pat_len, mflags);
}
}
-/* Get the next include/exclude arg from the string. It works in a similar way
-** to strtok - initially an arg is sent over, from then on NULL. This
-** routine takes into account any +/- in the strings and does not
-** consider the space following it as a delimeter.
-*/
-char *get_exclude_tok(char *p)
+
+void add_filter_file(struct filter_list_struct *listp, const char *fname,
+ int xflags)
{
- static char *s;
- static int more;
- char *t;
+ FILE *fp;
+ char line[MAXPATHLEN+MAX_RULE_PREFIX+1]; /* +1 for trailing slash. */
+ char *eob = line + sizeof line - 1;
+ int word_split = xflags & XFLG_WORD_SPLIT;
+
+ if (!fname || !*fname)
+ return;
- if (p) {
- s=p;
- if (*p)
- more=1;
+ if (*fname != '-' || fname[1])
+ fp = fopen(fname, "rb");
+ else
+ fp = stdin;
+ if (!fp) {
+ if (xflags & XFLG_FATAL_ERRORS) {
+ rsyserr(FERROR, errno,
+ "failed to open %sclude file %s",
+ xflags & XFLG_DEF_INCLUDE ? "in" : "ex",
+ safe_fname(fname));
+ exit_cleanup(RERR_FILEIO);
+ }
+ return;
}
+ dirbuf[dirbuf_len] = '\0';
- if (!more)
- return(NULL);
+ if (verbose > 2) {
+ rprintf(FINFO, "[%s] add_filter_file(%s,%d)\n",
+ who_am_i(), safe_fname(fname), xflags);
+ }
- /* Skip over any initial spaces */
- while(isspace(*s))
- s++;
+ while (1) {
+ char *s = line;
+ int ch, overflow = 0;
+ while (1) {
+ if ((ch = getc(fp)) == EOF) {
+ if (ferror(fp) && errno == EINTR)
+ 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;
+ }
+ 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 != '#')))
+ add_filter(listp, line, xflags);
+ if (ch == EOF)
+ break;
+ }
+ fclose(fp);
+}
- /* Are we at the end of the string? */
- if (*s) {
- /* remember the beginning of the token */
- t=s;
- /* Is this a '+' or '-' followed by a space (not whitespace)? */
- if ((*s=='+' || *s=='-') && *(s+1)==' ')
- s+=2;
-
- /* Skip to the next space or the end of the string */
- while(!isspace(*s) && *s!='\0')
- s++;
- } else {
- t=NULL;
+void send_filter_list(int f)
+{
+ struct filter_struct *ent;
+
+ /* This is a complete hack - blame Rusty. FIXME!
+ * Remove this hack when older rsyncs (below 2.6.4) are gone. */
+ if (list_only == 1 && !recurse)
+ add_filter(&filter_list, "/*/*", XFLG_DEF_EXCLUDE);
+
+ for (ent = filter_list.head; ent; ent = ent->next) {
+ unsigned int l;
+ char p[MAXPATHLEN+MAX_RULE_PREFIX+1];
+
+ l = strlcpy(p, ent->pattern, sizeof p);
+ if (l == 0 || l >= MAXPATHLEN)
+ continue;
+ if (ent->match_flags & MATCHFLG_DIRECTORY) {
+ p[l++] = '/';
+ p[l] = '\0';
+ }
+
+ if (ent->match_flags & MATCHFLG_PERDIR_MERGE) {
+ char buf[MAX_RULE_PREFIX], *op = buf;
+ if (protocol_version < 29) {
+ rprintf(FERROR,
+ "remote rsync is too old to understand per-directory merge files.\n");
+ exit_cleanup(RERR_SYNTAX);
+ }
+ *op++ = ':';
+ if (ent->match_flags & MATCHFLG_WORD_SPLIT)
+ *op++ = 's';
+ if (ent->match_flags & MATCHFLG_NO_INHERIT)
+ *op++ = 'n';
+ if (ent->match_flags & MATCHFLG_EXCLUDE_SELF)
+ *op++ = 'e';
+ if (ent->match_flags & MATCHFLG_NO_PREFIXES) {
+ if (ent->match_flags & MATCHFLG_INCLUDE)
+ *op++ = '+';
+ else
+ *op++ = '-';
+ }
+ *op++ = ' ';
+ if (op - buf > MAX_RULE_PREFIX)
+ overflow("send_filter_list");
+ write_int(f, l + (op - buf));
+ write_buf(f, buf, op - buf);
+ } else if (ent->match_flags & MATCHFLG_INCLUDE) {
+ write_int(f, l + 2);
+ write_buf(f, "+ ", 2);
+ } else if (protocol_version >= 29
+ || ((*p == '-' || *p == '+') && p[1] == ' ')) {
+ write_int(f, l + 2);
+ write_buf(f, "- ", 2);
+ } else
+ write_int(f, l);
+ write_buf(f, p, l);
}
- /* Have we reached the end of the string? */
- if (*s)
- *s++='\0';
- else
- more=0;
- return(t);
+ write_int(f, 0);
}
-
-void add_exclude_line(char *p)
-{
- char *tok;
- if (!p || !*p) return;
- p = strdup(p);
- if (!p) out_of_memory("add_exclude_line");
- for (tok=get_exclude_tok(p); tok; tok=get_exclude_tok(NULL))
- add_exclude(tok, 0);
- free(p);
-}
-void add_include_line(char *p)
+void recv_filter_list(int f)
{
- char *tok;
- if (!p || !*p) return;
- p = strdup(p);
- if (!p) out_of_memory("add_include_line");
- for (tok=get_exclude_tok(p); tok; tok=get_exclude_tok(NULL))
- add_exclude(tok, 1);
- free(p);
+ char line[MAXPATHLEN+MAX_RULE_PREFIX+1]; /* +1 for trailing slash. */
+ unsigned int xflags = protocol_version >= 29 ? 0 : XFLG_DEF_EXCLUDE;
+ unsigned int l;
+
+ while ((l = read_int(f)) != 0) {
+ if (l >= sizeof line)
+ overflow("recv_filter_list");
+ read_sbuf(f, line, l);
+ add_filter(&filter_list, line, xflags);
+ }
}
-static char *cvs_ignore_list[] = {
- "RCS","SCCS","CVS","CVS.adm","RCSLOG","cvslog.*",
- "tags","TAGS",".make.state",".nse_depinfo",
- "*~", "#*", ".#*", ",*", "*.old", "*.bak", "*.BAK", "*.orig",
- "*.rej", ".del-*", "*.a", "*.o", "*.obj", "*.so", "*.Z", "*.elc", "*.ln",
- "core",NULL};
-
-
+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/";
void add_cvs_excludes(void)
{
+ static unsigned int cvs_flags = XFLG_WORD_SPLIT | XFLG_NO_PREFIXES
+ | XFLG_DEF_EXCLUDE;
char fname[MAXPATHLEN];
char *p;
- int i;
-
- for (i=0; cvs_ignore_list[i]; i++)
- add_exclude(cvs_ignore_list[i], 0);
- if ((p=getenv("HOME")) && strlen(p) < (MAXPATHLEN-12)) {
- slprintf(fname,sizeof(fname), "%s/.cvsignore",p);
- add_exclude_file(fname,0,0);
+ add_filter(&filter_list, ":C", 0);
+ add_filter(&filter_list, default_cvsignore, cvs_flags);
+
+ if ((p = getenv("HOME"))
+ && pathjoin(fname, sizeof fname, p, ".cvsignore") < sizeof fname) {
+ add_filter_file(&filter_list, fname, cvs_flags);
}
- add_exclude_line(getenv("CVSIGNORE"));
+ add_filter(&filter_list, getenv("CVSIGNORE"), cvs_flags);
}
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff