#include "lafe_platform.h"
__FBSDID("$FreeBSD: src/usr.bin/cpio/matching.c,v 1.2 2008/06/21 02:20:20 kientzle Exp $");
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include "err.h"
#include "line_reader.h"
#include "matching.h"
#include "pathmatch.h"
struct match {
struct match *next;
int matches;
char pattern[1];
};
struct lafe_matching {
struct match *exclusions;
int exclusions_count;
struct match *inclusions;
int inclusions_count;
int inclusions_unmatched_count;
};
static void add_pattern(struct match **list, const char *pattern);
static void initialize_matching(struct lafe_matching **);
static int match_exclusion(struct match *, const char *pathname);
static int match_inclusion(struct match *, const char *pathname);
int
lafe_exclude(struct lafe_matching **matching, const char *pattern)
{
if (*matching == NULL)
initialize_matching(matching);
add_pattern(&((*matching)->exclusions), pattern);
(*matching)->exclusions_count++;
return (0);
}
int
lafe_exclude_from_file(struct lafe_matching **matching, const char *pathname)
{
struct lafe_line_reader *lr;
const char *p;
int ret = 0;
lr = lafe_line_reader(pathname, 0);
while ((p = lafe_line_reader_next(lr)) != NULL) {
if (lafe_exclude(matching, p) != 0)
ret = -1;
}
lafe_line_reader_free(lr);
return (ret);
}
int
lafe_include(struct lafe_matching **matching, const char *pattern)
{
if (*matching == NULL)
initialize_matching(matching);
add_pattern(&((*matching)->inclusions), pattern);
(*matching)->inclusions_count++;
(*matching)->inclusions_unmatched_count++;
return (0);
}
int
lafe_include_from_file(struct lafe_matching **matching, const char *pathname,
int nullSeparator)
{
struct lafe_line_reader *lr;
const char *p;
int ret = 0;
lr = lafe_line_reader(pathname, nullSeparator);
while ((p = lafe_line_reader_next(lr)) != NULL) {
if (lafe_include(matching, p) != 0)
ret = -1;
}
lafe_line_reader_free(lr);
return (ret);
}
static void
add_pattern(struct match **list, const char *pattern)
{
struct match *match;
size_t len;
len = strlen(pattern);
match = malloc(sizeof(*match) + len + 1);
if (match == NULL)
lafe_errc(1, errno, "Out of memory");
strcpy(match->pattern, pattern);
if (len && match->pattern[len - 1] == '/')
match->pattern[strlen(match->pattern)-1] = '\0';
match->next = *list;
*list = match;
match->matches = 0;
}
int
lafe_excluded(struct lafe_matching *matching, const char *pathname)
{
struct match *match;
struct match *matched;
if (matching == NULL)
return (0);
for (match = matching->exclusions; match != NULL; match = match->next){
if (match_exclusion(match, pathname))
return (1);
}
matched = NULL;
for (match = matching->inclusions; match != NULL; match = match->next){
if (match_inclusion(match, pathname)) {
if (match->matches == 0) {
match->matches++;
matching->inclusions_unmatched_count--;
return (0);
}
matched = match;
}
}
if (matched != NULL) {
matched->matches++;
return (0);
}
if (matching->inclusions != NULL)
return (1);
return (0);
}
static int
match_exclusion(struct match *match, const char *pathname)
{
return (lafe_pathmatch(match->pattern,
pathname,
PATHMATCH_NO_ANCHOR_START | PATHMATCH_NO_ANCHOR_END));
}
static int
match_inclusion(struct match *match, const char *pathname)
{
#if 0
return (lafe_pathmatch(match->pattern, pathname, 0));
#else
return (lafe_pathmatch(match->pattern, pathname, PATHMATCH_NO_ANCHOR_END));
#endif
}
void
lafe_cleanup_exclusions(struct lafe_matching **matching)
{
struct match *p, *q;
if (*matching == NULL)
return;
for (p = (*matching)->inclusions; p != NULL; ) {
q = p;
p = p->next;
free(q);
}
for (p = (*matching)->exclusions; p != NULL; ) {
q = p;
p = p->next;
free(q);
}
free(*matching);
*matching = NULL;
}
static void
initialize_matching(struct lafe_matching **matching)
{
*matching = calloc(sizeof(**matching), 1);
if (*matching == NULL)
lafe_errc(1, errno, "No memory");
}
int
lafe_unmatched_inclusions(struct lafe_matching *matching)
{
if (matching == NULL)
return (0);
return (matching->inclusions_unmatched_count);
}
int
lafe_unmatched_inclusions_warn(struct lafe_matching *matching, const char *msg)
{
struct match *p;
if (matching == NULL)
return (0);
for (p = matching->inclusions; p != NULL; p = p->next) {
if (p->matches == 0)
lafe_warnc(0, "%s: %s", p->pattern, msg);
}
return (matching->inclusions_unmatched_count);
}