/*
- * Copyright (c) 1999-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1999-2006 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
#include <mach/mach.h>
#include <stdio.h>
#include <string.h>
-#include <rpc/types.h>
-#include <rpc/xdr.h>
#include <aliasdb.h>
#include <pthread.h>
-
-#include "_lu_types.h"
-#include "lookup.h"
#include "lu_utils.h"
#include "lu_overrides.h"
+#define ENTRY_SIZE sizeof(struct aliasent)
+#define ENTRY_KEY _li_data_key_alias
+
static pthread_mutex_t _alias_lock = PTHREAD_MUTEX_INITIALIZER;
-static void
-free_alias_data(struct aliasent *a)
+static struct aliasent *
+copy_alias(struct aliasent *in)
{
- int i;
-
- if (a == NULL) return;
-
- if (a->alias_name != NULL) free(a->alias_name);
- for (i = 0; i < a->alias_members_len; i++) free(a->alias_members[i]);
- if (a->alias_members != NULL) free(a->alias_members);
-}
+ if (in == NULL) return NULL;
-static void
-free_alias(struct aliasent *a)
-{
- if (a == NULL) return;
- free_alias_data(a);
- free(a);
+ return (struct aliasent *)LI_ils_create("s4*4", in->alias_name, in->alias_members_len, in->alias_members, in->alias_local);
}
-static void
-free_lu_thread_info_alias(void *x)
+/*
+ * Extract the next alias entry from a kvarray.
+ */
+static void *
+extract_alias(kvarray_t *in)
{
- struct lu_thread_info *tdata;
-
- if (x == NULL) return;
-
- tdata = (struct lu_thread_info *)x;
-
- if (tdata->lu_entry != NULL)
- {
- free_alias((struct aliasent *)tdata->lu_entry);
- tdata->lu_entry = NULL;
- }
+ struct aliasent tmp;
+ uint32_t d, k, kcount;
+ char *empty[1];
- _lu_data_free_vm_xdr(tdata);
-
- free(tdata);
-}
+ if (in == NULL) return NULL;
-static struct aliasent *
-extract_alias(XDR *xdr)
-{
- int i, j, nkeys, nvals, status;
- char *key, **vals;
- struct aliasent *a;
+ d = in->curr;
+ in->curr++;
- if (xdr == NULL) return NULL;
+ if (d >= in->count) return NULL;
- if (!xdr_int(xdr, &nkeys)) return NULL;
+ empty[0] = NULL;
+ memset(&tmp, 0, ENTRY_SIZE);
- a = (struct aliasent *)calloc(1, sizeof(struct aliasent));
+ kcount = in->dict[d].kcount;
- for (i = 0; i < nkeys; i++)
+ for (k = 0; k < kcount; k++)
{
- key = NULL;
- vals = NULL;
- nvals = 0;
-
- status = _lu_xdr_attribute(xdr, &key, &vals, &nvals);
- if (status < 0)
+ if (!strcmp(in->dict[d].key[k], "alias_name"))
{
- free_alias(a);
- return NULL;
- }
+ if (tmp.alias_name != NULL) continue;
+ if (in->dict[d].vcount[k] == 0) continue;
- if (nvals == 0)
- {
- free(key);
- continue;
+ tmp.alias_name = (char *)in->dict[d].val[k][0];
}
-
- j = 0;
-
- if ((a->alias_name == NULL) && (!strcmp("name", key)))
- {
- a->alias_name = vals[0];
- j = 1;
- }
- else if (!strcmp("alias_local", key))
+ else if (!strcmp(in->dict[d].key[k], "alias_members"))
{
- a->alias_local = atoi(vals[0]);
- }
- else if ((a->alias_members == NULL) && (!strcmp("members", key)))
- {
- a->alias_members_len = nvals;
- a->alias_members = vals;
- j = nvals;
- vals = NULL;
- }
+ if (tmp.alias_members != NULL) continue;
+ if (in->dict[d].vcount[k] == 0) continue;
- free(key);
- if (vals != NULL)
+ tmp.alias_members_len = in->dict[d].vcount[k];
+ tmp.alias_members = (char **)in->dict[d].val[k];
+ }
+ else if (!strcmp(in->dict[d].key[k], "alias_local"))
{
- for (; j < nvals; j++) free(vals[j]);
- free(vals);
+ if (in->dict[d].vcount[k] == 0) continue;
+ tmp.alias_local = atoi(in->dict[d].val[k][0]);
}
}
- if (a->alias_name == NULL) a->alias_name = strdup("");
- if (a->alias_members == NULL) a->alias_members = (char **)calloc(1, sizeof(char *));
+ if (tmp.alias_name == NULL) tmp.alias_name = "";
+ if (tmp.alias_members == NULL) tmp.alias_members = empty;
- return a;
+ return copy_alias(&tmp);
}
+/*
+ * Send a query to the system information daemon.
+ */
static struct aliasent *
-copy_alias(struct aliasent *in)
-{
- int i;
- struct aliasent *a;
-
- if (in == NULL) return NULL;
-
- a = (struct aliasent *)calloc(1, sizeof(struct aliasent));
-
- a->alias_name = LU_COPY_STRING(in->alias_name);
-
- a->alias_members_len = in->alias_members_len;
-
- if (a->alias_members_len == 0)
- {
- a->alias_members = (char **)calloc(1, sizeof(char *));
- }
- else
- {
- a->alias_members = (char **)calloc(a->alias_members_len, sizeof(char *));
- }
-
- for (i = 0; i < a->alias_members_len; i++)
- {
- a->alias_members[i] = strdup(in->alias_members[i]);
- }
-
- a->alias_local = in->alias_local;
-
- return a;
-}
-
-static void
-recycle_alias(struct lu_thread_info *tdata, struct aliasent *in)
-{
- struct aliasent *a;
-
- if (tdata == NULL) return;
- a = (struct aliasent *)tdata->lu_entry;
-
- if (in == NULL)
- {
- free_alias(a);
- tdata->lu_entry = NULL;
- }
-
- if (tdata->lu_entry == NULL)
- {
- tdata->lu_entry = in;
- return;
- }
-
- free_alias_data(a);
-
- a->alias_name = in->alias_name;
- a->alias_members_len = in->alias_members_len;
- a->alias_members = in->alias_members;
- a->alias_local = in->alias_local;
-
- free(in);
-}
-
-static struct aliasent *
-lu_alias_getbyname(const char *name)
+ds_alias_getbyname(const char *name)
{
- struct aliasent *a;
- unsigned int datalen;
- char namebuf[_LU_MAXLUSTRLEN + BYTES_PER_XDR_UNIT];
- char *lookup_buf;
- XDR outxdr;
- XDR inxdr;
static int proc = -1;
- int count;
-
- if (proc < 0)
- {
- if (_lookup_link(_lu_port, "alias_getbyname", &proc) != KERN_SUCCESS)
- {
- return NULL;
- }
- }
- xdrmem_create(&outxdr, namebuf, sizeof(namebuf), XDR_ENCODE);
- if (!xdr__lu_string(&outxdr, (_lu_string *)&name))
- {
- xdr_destroy(&outxdr);
- return NULL;
- }
-
- datalen = 0;
- lookup_buf = NULL;
-
- if (_lookup_all(_lu_port, proc, (unit *)namebuf,
- xdr_getpos(&outxdr) / BYTES_PER_XDR_UNIT, &lookup_buf, &datalen)
- != KERN_SUCCESS)
- {
- xdr_destroy(&outxdr);
- return NULL;
- }
-
- xdr_destroy(&outxdr);
-
- datalen *= BYTES_PER_XDR_UNIT;
- if ((lookup_buf == NULL) || (datalen == 0)) return NULL;
-
- xdrmem_create(&inxdr, lookup_buf, datalen, XDR_DECODE);
-
- count = 0;
- if (!xdr_int(&inxdr, &count))
- {
- xdr_destroy(&inxdr);
- vm_deallocate(mach_task_self(), (vm_address_t)lookup_buf, datalen);
- return NULL;
- }
-
- if (count == 0)
- {
- xdr_destroy(&inxdr);
- vm_deallocate(mach_task_self(), (vm_address_t)lookup_buf, datalen);
- return NULL;
- }
-
- a = extract_alias(&inxdr);
- xdr_destroy(&inxdr);
- vm_deallocate(mach_task_self(), (vm_address_t)lookup_buf, datalen);
-
- return a;
+ return (struct aliasent *)LI_getone("alias_getbyname", &proc, extract_alias, "name", name);
}
+/*
+ * Clean up / initialize / reinitialize the kvarray used to hold a list of all rpc entries.
+ */
static void
-lu_alias_endent(void)
+ds_alias_endent(void)
{
- struct lu_thread_info *tdata;
-
- tdata = _lu_data_create_key(_lu_data_key_alias, free_lu_thread_info_alias);
- _lu_data_free_vm_xdr(tdata);
+ LI_data_free_kvarray(LI_data_find_key(ENTRY_KEY));
}
static void
-lu_alias_setent(void)
+ds_alias_setent(void)
{
- lu_alias_endent();
+ ds_alias_endent();
}
+/*
+ * Get an entry from the getrpcent kvarray.
+ * Calls the system information daemon if the list doesn't exist (first call),
+ * or extracts the next entry if the list has been fetched.
+ */
static struct aliasent *
-lu_alias_getent(void)
+ds_alias_getent(void)
{
static int proc = -1;
- struct lu_thread_info *tdata;
- struct aliasent *a;
-
- tdata = _lu_data_create_key(_lu_data_key_alias, free_lu_thread_info_alias);
- if (tdata == NULL)
- {
- tdata = (struct lu_thread_info *)calloc(1, sizeof(struct lu_thread_info));
- _lu_data_set_key(_lu_data_key_alias, tdata);
- }
-
- if (tdata->lu_vm == NULL)
- {
- if (proc < 0)
- {
- if (_lookup_link(_lu_port, "alias_getent", &proc) != KERN_SUCCESS)
- {
- lu_alias_endent();
- return NULL;
- }
- }
-
- if (_lookup_all(_lu_port, proc, NULL, 0, &(tdata->lu_vm), &(tdata->lu_vm_length)) != KERN_SUCCESS)
- {
- lu_alias_endent();
- return NULL;
- }
-
- /* mig stubs measure size in words (4 bytes) */
- tdata->lu_vm_length *= 4;
-
- if (tdata->lu_xdr != NULL)
- {
- xdr_destroy(tdata->lu_xdr);
- free(tdata->lu_xdr);
- }
- tdata->lu_xdr = (XDR *)calloc(1, sizeof(XDR));
- xdrmem_create(tdata->lu_xdr, tdata->lu_vm, tdata->lu_vm_length, XDR_DECODE);
- if (!xdr_int(tdata->lu_xdr, &tdata->lu_vm_cursor))
- {
- lu_alias_endent();
- return NULL;
- }
- }
-
- if (tdata->lu_vm_cursor == 0)
- {
- lu_alias_endent();
- return NULL;
- }
-
-
- a = extract_alias(tdata->lu_xdr);
- if (a == NULL)
- {
- lu_alias_endent();
- return NULL;
- }
-
- tdata->lu_vm_cursor--;
-
- return a;
+ return (struct aliasent *)LI_getent("alias_getent", &proc, extract_alias, ENTRY_KEY, ENTRY_SIZE);
}
struct aliasent *
alias_getbyname(const char *name)
{
struct aliasent *res = NULL;
- struct lu_thread_info *tdata;
+ struct li_thread_info *tdata;
- tdata = _lu_data_create_key(_lu_data_key_alias, free_lu_thread_info_alias);
- if (tdata == NULL)
- {
- tdata = (struct lu_thread_info *)calloc(1, sizeof(struct lu_thread_info));
- _lu_data_set_key(_lu_data_key_alias, tdata);
- }
+ tdata = LI_data_create_key(ENTRY_KEY, ENTRY_SIZE);
+ if (tdata == NULL) return NULL;
- if (_lu_running())
+ if (_ds_running())
{
- res = lu_alias_getbyname(name);
+ res = ds_alias_getbyname(name);
}
else
{
pthread_mutex_unlock(&_alias_lock);
}
- recycle_alias(tdata, res);
- return (struct aliasent *)tdata->lu_entry;
+ LI_data_recycle(tdata, res, ENTRY_SIZE);
+ return (struct aliasent *)tdata->li_entry;
}
alias_getent(void)
{
struct aliasent *res = NULL;
- struct lu_thread_info *tdata;
+ struct li_thread_info *tdata;
- tdata = _lu_data_create_key(_lu_data_key_alias, free_lu_thread_info_alias);
- if (tdata == NULL)
- {
- tdata = (struct lu_thread_info *)calloc(1, sizeof(struct lu_thread_info));
- _lu_data_set_key(_lu_data_key_alias, tdata);
- }
+ tdata = LI_data_create_key(ENTRY_KEY, ENTRY_SIZE);
+ if (tdata == NULL) return NULL;
- if (_lu_running())
+ if (_ds_running())
{
- res = lu_alias_getent();
+ res = ds_alias_getent();
}
else
{
pthread_mutex_unlock(&_alias_lock);
}
- recycle_alias(tdata, res);
- return (struct aliasent *)tdata->lu_entry;
+ LI_data_recycle(tdata, res, ENTRY_SIZE);
+ return (struct aliasent *)tdata->li_entry;
}
void
alias_setent(void)
{
- if (_lu_running()) lu_alias_setent();
+ if (_ds_running()) ds_alias_setent();
else _old_alias_setent();
}
void
alias_endent(void)
{
- if (_lu_running()) lu_alias_endent();
+ if (_ds_running()) ds_alias_endent();
else _old_alias_endent();
}
projects / apple / libinfo.git / blobdiff