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/*
Unix SMB/CIFS implementation.
routines to manipulate a "struct dom_sid"
Copyright (C) Andrew Tridgell 2004
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.
*/
#include "includes.h"
/*
convert a string to a dom_sid, returning a talloc'd dom_sid
*/
struct dom_sid *dom_sid_parse_talloc(TALLOC_CTX *mem_ctx, const char *sidstr)
{
struct dom_sid *ret;
uint_t rev, ia, num_sub_auths, i;
char *p;
if (strncasecmp(sidstr, "S-", 2)) {
return NULL;
}
sidstr += 2;
rev = strtol(sidstr, &p, 10);
if (*p != '-') {
return NULL;
}
sidstr = p+1;
ia = strtol(sidstr, &p, 10);
if (p == sidstr) {
return NULL;
}
sidstr = p;
num_sub_auths = 0;
for (i=0;sidstr[i];i++) {
if (sidstr[i] == '-') num_sub_auths++;
}
ret = talloc_p(mem_ctx, struct dom_sid);
if (!ret) {
return NULL;
}
ret->sub_auths = talloc_array_p(mem_ctx, uint32_t, num_sub_auths);
if (!ret->sub_auths) {
return NULL;
}
ret->sid_rev_num = rev;
ret->id_auth[0] = 0;
ret->id_auth[0] = 0;
ret->id_auth[1] = 0;
ret->id_auth[2] = ia >> 24;
ret->id_auth[3] = ia >> 16;
ret->id_auth[4] = ia >> 8;
ret->id_auth[5] = ia;
ret->num_auths = num_sub_auths;
for (i=0;i<num_sub_auths;i++) {
if (sidstr[0] != '-') {
return NULL;
}
sidstr++;
ret->sub_auths[i] = strtoul(sidstr, &p, 10);
if (p == sidstr) {
return NULL;
}
sidstr = p;
}
return ret;
}
/*
convert a string to a dom_sid, returning a talloc'd dom_sid
*/
struct dom_sid *dom_sid_dup(TALLOC_CTX *mem_ctx, struct dom_sid *dom_sid)
{
struct dom_sid *ret;
int i;
ret = talloc_p(mem_ctx, struct dom_sid);
if (!ret) {
return NULL;
}
ret->sub_auths = talloc_array_p(mem_ctx, uint32_t, dom_sid->num_auths);
if (!ret->sub_auths) {
return NULL;
}
ret->sid_rev_num = dom_sid->sid_rev_num;
ret->id_auth[0] = dom_sid->id_auth[0];
ret->id_auth[1] = dom_sid->id_auth[1];
ret->id_auth[2] = dom_sid->id_auth[2];
ret->id_auth[3] = dom_sid->id_auth[3];
ret->id_auth[4] = dom_sid->id_auth[4];
ret->id_auth[5] = dom_sid->id_auth[5];
ret->num_auths = dom_sid->num_auths;
for (i=0;i<dom_sid->num_auths;i++) {
ret->sub_auths[i] = dom_sid->sub_auths[i];
}
return ret;
}
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