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/*
* Copyright (c) 2004, 2006, 2008 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "windlocl.h"
#include <stdlib.h>
#include <string.h>
#include <errno.h>
/**
* Process a input UCS4 string according a string-prep profile.
*
* @param in input UCS4 string to process
* @param in_len length of the input string
* @param out output UCS4 string
* @param out_len length of the output string.
* @param flags stringprep profile.
*
* @return returns 0 on success, an wind error code otherwise
* @ingroup wind
*/
int
wind_stringprep(const uint32_t *in, size_t in_len,
uint32_t *out, size_t *out_len,
wind_profile_flags flags)
{
size_t tmp_len = in_len * 3;
uint32_t *tmp;
int ret;
size_t olen;
if (in_len == 0) {
*out_len = 0;
return 0;
}
tmp = malloc(tmp_len * sizeof(uint32_t));
if (tmp == NULL)
return ENOMEM;
ret = _wind_stringprep_map(in, in_len, tmp, &tmp_len, flags);
if (ret) {
free(tmp);
return ret;
}
olen = *out_len;
ret = _wind_stringprep_normalize(tmp, tmp_len, tmp, &olen);
if (ret) {
free(tmp);
return ret;
}
ret = _wind_stringprep_prohibited(tmp, olen, flags);
if (ret) {
free(tmp);
return ret;
}
ret = _wind_stringprep_testbidi(tmp, olen, flags);
if (ret) {
free(tmp);
return ret;
}
/* Insignificant Character Handling for ldap-prep */
if (flags & WIND_PROFILE_LDAP_CASE_EXACT_ATTRIBUTE) {
ret = _wind_ldap_case_exact_attribute(tmp, olen, out, out_len);
#if 0
} else if (flags & WIND_PROFILE_LDAP_CASE_EXACT_ASSERTION) {
} else if (flags & WIND_PROFILE_LDAP_NUMERIC) {
} else if (flags & WIND_PROFILE_LDAP_TELEPHONE) {
#endif
} else {
memcpy(out, tmp, sizeof(out[0]) * olen);
*out_len = olen;
}
free(tmp);
return ret;
}
static const struct {
const char *name;
wind_profile_flags flags;
} profiles[] = {
{ "nameprep", WIND_PROFILE_NAME },
{ "saslprep", WIND_PROFILE_SASL },
{ "ldapprep", WIND_PROFILE_LDAP }
};
/**
* Try to find the profile given a name.
*
* @param name name of the profile.
* @param flags the resulting profile.
*
* @return returns 0 on success, an wind error code otherwise
* @ingroup wind
*/
int
wind_profile(const char *name, wind_profile_flags *flags)
{
unsigned int i;
for (i = 0; i < sizeof(profiles)/sizeof(profiles[0]); i++) {
if (strcasecmp(profiles[i].name, name) == 0) {
*flags = profiles[i].flags;
return 0;
}
}
return WIND_ERR_NO_PROFILE;
}
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