File: sicis.c

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/** BEGIN COPYRIGHT BLOCK
 * Copyright (C) 2005 Red Hat, Inc.
 * All rights reserved.
 *
 * License: GPL (version 3 or any later version).
 * See LICENSE for details.
 * END COPYRIGHT BLOCK **/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif


/*
 * sicis.c - space insensitive string syntax routines.
 *           these strings are also case insensitive.
 *
 * This is a non-standard syntax.  It is only used by the presence plug-in.
 * It will be disabled by default unless the presence plug-in is compiled.
 */
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include "syntax.h"

static int sicis_filter_ava(Slapi_PBlock *pb, struct berval *bvfilter, Slapi_Value **bvals, int ftype, Slapi_Value **retVal);
static int sicis_filter_sub(Slapi_PBlock *pb, char *initial, char **any, char * final, Slapi_Value **bvals);
static int sicis_values2keys(Slapi_PBlock *pb, Slapi_Value **val, Slapi_Value ***ivals, int ftype);
static int sicis_assertion2keys_ava(Slapi_PBlock *pb, Slapi_Value *val, Slapi_Value ***ivals, int ftype);
static int sicis_assertion2keys_sub(Slapi_PBlock *pb, char *initial, char **any, char * final, Slapi_Value ***ivals);
static int sicis_compare(struct berval *v1, struct berval *v2);
static void sicis_normalize(
    Slapi_PBlock *pb,
    char *s,
    int trim_spaces,
    char **alt);

/* the first name is the official one from RFC 2252 */
static char *names[] = {"SpaceInsensitiveString",
                        SPACE_INSENSITIVE_STRING_SYNTAX_OID, 0};

static Slapi_PluginDesc pdesc = {"spaceinsensitivestring-syntax",
                                 VENDOR, DS_PACKAGE_VERSION,
                                 "space insensitive string attribute syntax plugin"};

int
sicis_init(Slapi_PBlock *pb)
{
    int rc, flags;

    slapi_log_err(SLAPI_LOG_PLUGIN, SYNTAX_PLUGIN_SUBSYSTEM, "=> sicis_init\n");

    rc = slapi_pblock_set(pb, SLAPI_PLUGIN_VERSION,
                          (void *)SLAPI_PLUGIN_VERSION_01);
    rc |= slapi_pblock_set(pb, SLAPI_PLUGIN_DESCRIPTION,
                           (void *)&pdesc);
    rc |= slapi_pblock_set(pb, SLAPI_PLUGIN_SYNTAX_FILTER_AVA,
                           (void *)sicis_filter_ava);
    rc |= slapi_pblock_set(pb, SLAPI_PLUGIN_SYNTAX_FILTER_SUB,
                           (void *)sicis_filter_sub);
    rc |= slapi_pblock_set(pb, SLAPI_PLUGIN_SYNTAX_VALUES2KEYS,
                           (void *)sicis_values2keys);
    rc |= slapi_pblock_set(pb, SLAPI_PLUGIN_SYNTAX_ASSERTION2KEYS_AVA,
                           (void *)sicis_assertion2keys_ava);
    rc |= slapi_pblock_set(pb, SLAPI_PLUGIN_SYNTAX_ASSERTION2KEYS_SUB,
                           (void *)sicis_assertion2keys_sub);
    flags = SLAPI_PLUGIN_SYNTAX_FLAG_ORDERING;
    rc |= slapi_pblock_set(pb, SLAPI_PLUGIN_SYNTAX_FLAGS,
                           (void *)&flags);
    rc |= slapi_pblock_set(pb, SLAPI_PLUGIN_SYNTAX_NAMES,
                           (void *)names);
    rc |= slapi_pblock_set(pb, SLAPI_PLUGIN_SYNTAX_OID,
                           (void *)SPACE_INSENSITIVE_STRING_SYNTAX_OID);
    rc |= slapi_pblock_set(pb, SLAPI_PLUGIN_SYNTAX_COMPARE,
                           (void *)sicis_compare);
    rc |= slapi_pblock_set(pb, SLAPI_PLUGIN_SYNTAX_NORMALIZE,
                           (void *)sicis_normalize);

    slapi_log_err(SLAPI_LOG_PLUGIN, SYNTAX_PLUGIN_SUBSYSTEM, "<= sicis_init %d\n", rc);
    return (rc);
}

static int
sicis_filter_ava(
    Slapi_PBlock *pb,
    struct berval *bvfilter,
    Slapi_Value **bvals,
    int ftype,
    Slapi_Value **retVal)
{
    int filter_normalized = 0;
    int syntax = SYNTAX_SI | SYNTAX_CIS;
    if (pb) {
        slapi_pblock_get(pb, SLAPI_PLUGIN_SYNTAX_FILTER_NORMALIZED,
                         &filter_normalized);
        if (filter_normalized) {
            syntax |= SYNTAX_NORM_FILT;
        }
    }
    return (string_filter_ava(bvfilter, bvals, syntax,
                              ftype, retVal));
}


static int
sicis_filter_sub(
    Slapi_PBlock *pb,
    char *initial,
    char **any,
    char * final,
    Slapi_Value **bvals)
{
    return (string_filter_sub(pb, initial, any, final, bvals, SYNTAX_SI | SYNTAX_CIS));
}

static int
sicis_values2keys(
    Slapi_PBlock *pb,
    Slapi_Value **vals,
    Slapi_Value ***ivals,
    int ftype)
{
    return (string_values2keys(pb, vals, ivals, SYNTAX_SI | SYNTAX_CIS,
                               ftype));
}

static int
sicis_assertion2keys_ava(
    Slapi_PBlock *pb,
    Slapi_Value *val,
    Slapi_Value ***ivals,
    int ftype)
{
    return (string_assertion2keys_ava(pb, val, ivals,
                                      SYNTAX_SI | SYNTAX_CIS, ftype));
}

static int
sicis_assertion2keys_sub(
    Slapi_PBlock *pb,
    char *initial,
    char **any,
    char * final,
    Slapi_Value ***ivals)
{
    return (string_assertion2keys_sub(pb, initial, any, final, ivals,
                                      SYNTAX_SI | SYNTAX_CIS));
}

static int
sicis_compare(
    struct berval *v1,
    struct berval *v2)
{
    return value_cmp(v1, v2, SYNTAX_SI | SYNTAX_CIS, 3 /* Normalise both values */);
}

static void
sicis_normalize(
    Slapi_PBlock *pb __attribute__((unused)),
    char *s,
    int trim_spaces,
    char **alt)
{
    value_normalize_ext(s, SYNTAX_SI | SYNTAX_CIS, trim_spaces, alt);
    return;
}