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OS/2 Shareware BBS: 35 Internet
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rsync221.zip
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exclude.c
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C/C++ Source or Header
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1999-03-04
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345 lines
/*
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.
*/
/* 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 "rsync.h"
extern int verbose;
static struct exclude_struct **exclude_list;
/*
* Optimization for special case when all included files are explicitly
* listed without wildcards in the "exclude" list followed by a "- *"
* to exclude the rest.
* Contributed by Dave Dykstra <dwd@bell-labs.com>
*/
static int only_included_files = 1;
static struct exclude_struct *exclude_the_rest;
int send_included_file_names(int f,struct file_list *flist)
{
struct exclude_struct *ex, **ex_list;
int n;
char *p;
if (!only_included_files || (exclude_the_rest == NULL))
return 0;
if (verbose > 1) {
rprintf(FINFO,"(using include-only optimization) ");
}
/* set exclude_list to NULL temporarily so check_exclude */
/* will always return true */
ex_list = exclude_list;
exclude_list = NULL;
for (n=0; (ex = ex_list[n]) != NULL; n++) {
if (ex == exclude_the_rest)
break;
p = ex->pattern;
while (*p == '/') {
/* skip the allowed beginning slashes */
p++;
}
send_file_name(f,flist,p,0,0);
}
exclude_list = ex_list;
return 1;
}
/* build an exclude structure given a exclude pattern */
static struct exclude_struct *make_exclude(char *pattern, int include)
{
struct exclude_struct *ret;
ret = (struct exclude_struct *)malloc(sizeof(*ret));
if (!ret) out_of_memory("make_exclude");
memset(ret, 0, sizeof(*ret));
if (strncmp(pattern,"- ",2) == 0) {
pattern += 2;
} else if (strncmp(pattern,"+ ",2) == 0) {
ret->include = 1;
pattern += 2;
} else {
ret->include = include;
}
ret->pattern = strdup(pattern);
if (!ret->pattern) out_of_memory("make_exclude");
if (strpbrk(pattern, "*[?")) {
if (!ret->include && (*pattern == '*') && (*(pattern+1) == '\0')) {
exclude_the_rest = ret;
} else {
only_included_files = 0;
}
ret->regular_exp = 1;
} else if (!ret->include) {
only_included_files = 0;
}
if (strlen(pattern) > 1 && pattern[strlen(pattern)-1] == '/') {
ret->pattern[strlen(pattern)-1] = 0;
ret->directory = 1;
}
if (!strchr(ret->pattern,'/')) {
ret->local = 1;
}
return ret;
}
static void free_exclude(struct exclude_struct *ex)
{
free(ex->pattern);
memset(ex,0,sizeof(*ex));
free(ex);
}
static int check_one_exclude(char *name,struct exclude_struct *ex,
STRUCT_STAT *st)
{
char *p;
int match_start=0;
char *pattern = ex->pattern;
if (ex->local && (p=strrchr(name,'/')))
name = p+1;
if (!name[0]) return 0;
if (ex->directory && !S_ISDIR(st->st_mode)) return 0;
if (*pattern == '/' && *name != '/') {
match_start = 1;
pattern++;
}
if (ex->regular_exp) {
if (fnmatch(pattern, name, 0) == 0)
return 1;
} else {
int l1 = strlen(name);
int l2 = strlen(pattern);
if (l2 <= l1 &&
strcmp(name+(l1-l2),pattern) == 0 &&
(l1==l2 || (!match_start && name[l1-(l2+1)] == '/')))
return 1;
}
return 0;
}
int check_exclude(char *name,struct exclude_struct **local_exclude_list,
STRUCT_STAT *st)
{
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 (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)
{
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]);
}
free((*list));
*list = NULL;
only_included_files = 1;
exclude_the_rest = 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;
}
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)
{
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);
}
return list;
}
while (fgets(line,MAXPATHLEN,f)) {
int l = strlen(line);
if (l && line[l-1] == '\n') l--;
line[l] = 0;
if (line[0]) add_exclude_list(line,&list,include);
}
fclose(f);
return list;
}
void add_exclude_file(char *fname,int fatal,int include)
{
if (!fname || !*fname) return;
exclude_list = make_exclude_list(fname,exclude_list,fatal,include);
}
void send_exclude_list(int f)
{
int i;
extern int remote_version;
if (!exclude_list) {
write_int(f,0);
return;
}
for (i=0;exclude_list[i];i++) {
char *pattern = exclude_list[i]->pattern;
int l;
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);
}
write_int(f,l+2);
write_buf(f,"+ ",2);
} else {
write_int(f,l);
}
write_buf(f,pattern,l);
}
write_int(f,0);
}
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);
}
}
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=strtok(p," "); tok; tok=strtok(NULL," "))
add_exclude(tok, 0);
free(p);
}
void add_include_line(char *p)
{
char *tok;
if (!p || !*p) return;
p = strdup(p);
if (!p) out_of_memory("add_include_line");
for (tok=strtok(p," "); tok; tok=strtok(NULL," "))
add_exclude(tok, 1);
free(p);
}
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};
void add_cvs_excludes(void)
{
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_exclude_line(getenv("CVSIGNORE"));
}