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Free and Open Source Apple Filing Protocol (AFP) Server
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catsearch.c File Reference

FPCatSearch implementation. More...

#include <ctype.h>
#include <errno.h>
#include <netinet/in.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include <atalk/adouble.h>
#include <atalk/afp.h>
#include <atalk/cnid_bdb_private.h>
#include <atalk/cnid.h>
#include <atalk/globals.h>
#include <atalk/logger.h>
#include <atalk/netatalk_conf.h>
#include <atalk/unicode.h>
#include <atalk/util.h>
#include "desktop.h"
#include "dircache.h"
#include "directory.h"
#include "file.h"
#include "filedir.h"
#include "fork.h"
#include "volume.h"

Data Structures

struct  finderinfo
struct  scrit
struct  dsitem

Macros

#define DS_BSIZE   128
#define CATPBIT_PARTIAL   31
#define VETO_STR    "./../.AppleDouble/.AppleDB/Network Trash Folder/TheVolumeSettingsFolder/TheFindByContentFolder/.AppleDesktop/.Parent/"
#define NUM_ROUNDS   200

Typedefs

typedef char packed_finder[ADEDLEN_FINDERI]

Functions

static void clearstack (void)
 Clears directory stack.
static int addstack (char *uname, struct dir *dir, int pidx)
static int reducestack (void)
 Removes checked items from top of directory stack.
static struct adouble * adl_lkup (struct vol *vol, struct path *path, struct adouble *adp)
static struct finderinfo * unpack_buffer (struct finderinfo *finfo, char *buffer)
static struct finderinfo * unpack_finderinfo (struct vol *vol, struct path *path, struct adouble **adp, struct finderinfo *finfo, int islnk)
static int crit_check (struct vol *vol, struct path *path)
 Criteria checker.
static int rslt_add (const AFPObj *obj, struct vol *vol, struct path *path, char **buf, int ext)
static int catsearch (const AFPObj *obj, struct vol *vol, struct dir *dir, int rmatches, uint32_t *pos, char *rbuf, uint32_t *nrecs, int *rsize, int ext)
 This function performs a filesystem search.
static int catsearch_db (const AFPObj *obj, struct vol *vol, const char *uname, int rmatches, uint32_t *pos, char *rbuf, uint32_t *nrecs, int *rsize, int ext)
 This function performs a CNID db search.
static int catsearch_afp (AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen, int ext)
int afp_catsearch (AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
int afp_catsearch_ext (AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)

Variables

static int save_cidx = -1
static struct dsitem * dstack = NULL
static int dssize = 0
static int dsidx = 0
static struct scrit c1 c2

Detailed Description

FPCatSearch implementation.

This file contains FPCatSearch implementation. FPCatSearch performs file/directory search based on specified criteria. It is used by client to perform fast searches on (propably) big volumes. So, it has to be pretty fast.

This implementation bypasses most of adouble/libatalk stuff as long as possible and does a standard filesystem search. It calls higher-level libatalk/afpd functions only when it is really needed, mainly while returning some non-UNIX information or filtering by non-UNIX criteria.

Macro Definition Documentation

◆ CATPBIT_PARTIAL

#define CATPBIT_PARTIAL   31

◆ DS_BSIZE

#define DS_BSIZE   128

◆ NUM_ROUNDS

#define NUM_ROUNDS   200

◆ VETO_STR

#define VETO_STR    "./../.AppleDouble/.AppleDB/Network Trash Folder/TheVolumeSettingsFolder/TheFindByContentFolder/.AppleDesktop/.Parent/"

Typedef Documentation

◆ packed_finder

typedef char packed_finder[ADEDLEN_FINDERI]

Function Documentation

◆ addstack()

int addstack ( char * uname,
struct dir * dir,
int pidx )
static

Puts new item onto directory stack.

◆ adl_lkup()

struct adouble * adl_lkup ( struct vol * vol,
struct path * path,
struct adouble * adp )
static

Looks up for an opened adouble structure, opens resource fork of selected file.

◆ afp_catsearch()

int afp_catsearch ( AFPObj * obj,
char * ibuf,
size_t ibuflen,
char * rbuf,
size_t * rbuflen )

◆ afp_catsearch_ext()

int afp_catsearch_ext ( AFPObj * obj,
char * ibuf,
size_t ibuflen,
char * rbuf,
size_t * rbuflen )

◆ catsearch()

int catsearch ( const AFPObj * obj,
struct vol * vol,
struct dir * dir,
int rmatches,
uint32_t * pos,
char * rbuf,
uint32_t * nrecs,
int * rsize,
int ext )
static

This function performs a filesystem search.

Uses globals c1, c2, the search criteria

Parameters
[in]objAFP connection object
[in]volvolume we are searching on ...
[in,out]dirdirectory we are starting from ...
[in]rmatchesmaximum number of matches we can return
[in]posposition we've stopped recently
[out]rbufoutput buffer
[out]nrecsnumber of matches
[out]rsizelength of data written to output buffer
[in]extextended search flag

◆ catsearch_afp()

int catsearch_afp ( AFPObj * obj,
char * ibuf,
size_t ibuflen,
char * rbuf,
size_t * rbuflen,
int ext )
static

◆ catsearch_db()

int catsearch_db ( const AFPObj * obj,
struct vol * vol,
const char * uname,
int rmatches,
uint32_t * pos,
char * rbuf,
uint32_t * nrecs,
int * rsize,
int ext )
static

This function performs a CNID db search.

Uses globals c1, c2, the search criteria Always searches the whole volume, not a subtree

Parameters
[in]objAFP connection object
[in]volvolume we are searching on ...
[in]unameUNIX name of object to search
[in]rmatchesmaximum number of matches we can return
[in]posposition we've stopped recently
[out]rbufoutput buffer
[out]nrecsnumber of matches
[out]rsizelength of data written to output buffer
[in]extextended search flag

◆ clearstack()

void clearstack ( void )
static

Clears directory stack.

◆ crit_check()

int crit_check ( struct vol * vol,
struct path * path )
static

Criteria checker.

Returns
a 2-bit value.
  • bit 0 means if checked file meets given criteria.
  • bit 1 means if it is a directory and we should descent into it.
    • uname - UNIX name
    • fname - our fname (translated to UNIX)
    • cidx - index in directory stack

◆ reducestack()

int reducestack ( void )
static

Removes checked items from top of directory stack.

Returns
index of the first unchecked elements or -1.

◆ rslt_add()

int rslt_add ( const AFPObj * obj,
struct vol * vol,
struct path * path,
char ** buf,
int ext )
static

◆ unpack_buffer()

struct finderinfo * unpack_buffer ( struct finderinfo * finfo,
char * buffer )
static

◆ unpack_finderinfo()

struct finderinfo * unpack_finderinfo ( struct vol * vol,
struct path * path,
struct adouble ** adp,
struct finderinfo * finfo,
int islnk )
static

Variable Documentation

◆ c2

struct scrit c1 c2
static

search criteria

◆ dsidx

int dsidx = 0
static

First free item index...

◆ dssize

int dssize = 0
static

Directory stack (allocated) size...

◆ dstack

struct dsitem* dstack = NULL
static

Directory stack data...

◆ save_cidx

int save_cidx = -1
static

Saved index of currently scanned directory.