[irc/rqf/shadowircd.git] / src / privilege.c

/*
 * charybdis: an advanced ircd.
 * privilege.c: Dynamic privileges API.
 *
 * Copyright (c) 2008 William Pitcock <nenolod@dereferenced.org>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice is present in all copies.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

#include <stdinc.h>
#include "privilege.h"

static rb_dlink_list privilegeset_list = {};

int
privilegeset_in_set(struct PrivilegeSet *set, const char *priv)
{
	s_assert(set != NULL);
	s_assert(priv != NULL);

	return strstr(set->privs, priv) != NULL;
}

struct PrivilegeSet *
privilegeset_set_new(const char *name, const char *privs, PrivilegeFlags flags)
{
	struct PrivilegeSet *set;

	s_assert(privilegeset_get(name) == NULL);

	set = rb_malloc(sizeof(struct PrivilegeSet));
	set->refs = 1;
	set->name = rb_strdup(name);
	set->privs = rb_strdup(privs);
	set->flags = flags;

	rb_dlinkAdd(set, &set->node, &privilegeset_list);

	return set;
}

struct PrivilegeSet *
privilegeset_extend(struct PrivilegeSet *parent, const char *name, const char *privs, PrivilegeFlags flags)
{
	struct PrivilegeSet *set;

	s_assert(parent != NULL);
	s_assert(name != NULL);
	s_assert(privs != NULL);
	s_assert(privilegeset_get(name) == NULL);

	set = rb_malloc(sizeof(struct PrivilegeSet));
	set->refs = 1;
	set->name = rb_strdup(name);
	set->flags = flags;
	set->privs = rb_malloc(strlen(parent->privs) + 1 + strlen(privs) + 1);
	strcpy(parent->privs, set->privs);
	strcat(set->privs, " ");
	strcat(set->privs, privs);

	rb_dlinkAdd(set, &set->node, &privilegeset_list);

	return set;
}

struct PrivilegeSet *
privilegeset_get(const char *name)
{
	rb_dlink_node *iter;

	s_assert(name != NULL);

	RB_DLINK_FOREACH(iter, privilegeset_list.head)
	{
		struct PrivilegeSet *set = (struct PrivilegeSet *) iter->data;

		if (!strcasecmp(set->name, name))
			return set;
	}

	return NULL;
}

void
privilegeset_ref(struct PrivilegeSet *set)
{
	s_assert(set != NULL);

	set->refs++;
}

void
privilegeset_unref(struct PrivilegeSet *set)
{
	s_assert(set != NULL);

	if (--set->refs == 0)
	{
		rb_dlinkDelete(&set->node, &privilegeset_list);

		rb_free(set->name);
		rb_free(set->privs);
		rb_free(set);
	}
}
Commit	Line	Data
9291987b WP	1	/*
	2	* charybdis: an advanced ircd.
	3	* privilege.c: Dynamic privileges API.
	4	*
	5	* Copyright (c) 2008 William Pitcock <nenolod@dereferenced.org>
	6	*
	7	* Permission to use, copy, modify, and/or distribute this software for any
	8	* purpose with or without fee is hereby granted, provided that the above
	9	* copyright notice and this permission notice is present in all copies.
	10	*
	11	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	12	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	13	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	14	* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
	15	* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	16	* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
	17	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	18	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	19	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
	20	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	21	* POSSIBILITY OF SUCH DAMAGE.
	22	*/
	23
	24	#include <stdinc.h>
	25	#include "privilege.h"
	26
	27	static rb_dlink_list privilegeset_list = {};
	28
	29	int
	30	privilegeset_in_set(struct PrivilegeSet set, const char priv)
	31	{
	32	s_assert(set != NULL);
	33	s_assert(priv != NULL);
	34
	35	return strstr(set->privs, priv) != NULL;
	36	}
	37
	38	struct PrivilegeSet *
	39	privilegeset_set_new(const char name, const char privs, PrivilegeFlags flags)
	40	{
	41	struct PrivilegeSet *set;
	42
0e528807 WP	43	s_assert(privilegeset_get(name) == NULL);
0e528807 WP	44
9291987b WP	45	set = rb_malloc(sizeof(struct PrivilegeSet));
	46	set->refs = 1;
	47	set->name = rb_strdup(name);
	48	set->privs = rb_strdup(privs);
	49	set->flags = flags;
	50
	51	rb_dlinkAdd(set, &set->node, &privilegeset_list);
	52
	53	return set;
	54	}
	55
0e528807 WP	56	struct PrivilegeSet *
	57	privilegeset_extend(struct PrivilegeSet parent, const char name, const char *privs, PrivilegeFlags flags)
	58	{
	59	struct PrivilegeSet *set;
	60
	61	s_assert(parent != NULL);
	62	s_assert(name != NULL);
	63	s_assert(privs != NULL);
	64	s_assert(privilegeset_get(name) == NULL);
	65
	66	set = rb_malloc(sizeof(struct PrivilegeSet));
	67	set->refs = 1;
	68	set->name = rb_strdup(name);
	69	set->flags = flags;
	70	set->privs = rb_malloc(strlen(parent->privs) + 1 + strlen(privs) + 1);
	71	strcpy(parent->privs, set->privs);
	72	strcat(set->privs, " ");
	73	strcat(set->privs, privs);
	74
76eca655 WP	75	rb_dlinkAdd(set, &set->node, &privilegeset_list);
76eca655 WP	76
0e528807 WP	77	return set;
	78	}
	79
9291987b WP	80	struct PrivilegeSet *
	81	privilegeset_get(const char *name)
	82	{
	83	rb_dlink_node *iter;
	84
	85	s_assert(name != NULL);
	86
	87	RB_DLINK_FOREACH(iter, privilegeset_list.head)
	88	{
	89	struct PrivilegeSet set = (struct PrivilegeSet ) iter->data;
	90
	91	if (!strcasecmp(set->name, name))
	92	return set;
	93	}
	94
	95	return NULL;
	96	}
	97
	98	void
	99	privilegeset_ref(struct PrivilegeSet *set)
	100	{
	101	s_assert(set != NULL);
	102
	103	set->refs++;
	104	}
	105
	106	void
	107	privilegeset_unref(struct PrivilegeSet *set)
	108	{
	109	s_assert(set != NULL);
	110
	111	if (--set->refs == 0)
	112	{
	113	rb_dlinkDelete(&set->node, &privilegeset_list);
	114
	115	rb_free(set->name);
	116	rb_free(set->privs);
	117	rb_free(set);
	118	}
	119	}