static struct mypasswd *mypwenter(const struct passwd * pwd)
{
struct mypasswd *mypwd;
/*
* Initialize on the fly.
*/
if (mypwcache_name == 0) {
mypwcache_name = htable_create(0);
mypwcache_uid = binhash_create(0);
}
mypwd = (struct mypasswd *) mymalloc(sizeof(*mypwd));
mypwd->refcount = 0;
mypwd->pw_name = mystrdup(pwd->pw_name);
mypwd->pw_passwd = mystrdup(pwd->pw_passwd);
mypwd->pw_uid = pwd->pw_uid;
mypwd->pw_gid = pwd->pw_gid;
mypwd->pw_gecos = mystrdup(pwd->pw_gecos);
mypwd->pw_dir = mystrdup(pwd->pw_dir);
mypwd->pw_shell = mystrdup(*pwd->pw_shell ? pwd->pw_shell : _PATH_BSHELL);
/*
* Avoid mypwcache_uid memory leak when multiple names have the same UID.
* This makes the lookup result dependent on program history. But, it was
* already history-dependent before we added this extra check.
*/
htable_enter(mypwcache_name, mypwd->pw_name, (char *) mypwd);
if (binhash_locate(mypwcache_uid, (char *) &mypwd->pw_uid,
sizeof(mypwd->pw_uid)) == 0)
binhash_enter(mypwcache_uid, (char *) &mypwd->pw_uid,
sizeof(mypwd->pw_uid), (char *) mypwd);
return (mypwd);
}
/*
* Locate or allocate connection cache entry.
*/
static void dict_ldap_conn_find(DICT_LDAP *dict_ldap)
{
VSTRING *keybuf = vstring_alloc(10);
char *key;
int len;
#ifdef LDAP_API_FEATURE_X_OPENLDAP
int sslon = dict_ldap->start_tls || dict_ldap->ldap_ssl;
#endif
LDAP_CONN *conn;
#define ADDSTR(vp, s) vstring_memcat((vp), (s), strlen((s))+1)
#define ADDINT(vp, i) vstring_sprintf_append((vp), "%lu", (unsigned long)(i))
ADDSTR(keybuf, dict_ldap->server_host);
ADDINT(keybuf, dict_ldap->server_port);
ADDINT(keybuf, dict_ldap->bind);
ADDSTR(keybuf, dict_ldap->bind ? dict_ldap->bind_dn : "");
ADDSTR(keybuf, dict_ldap->bind ? dict_ldap->bind_pw : "");
ADDINT(keybuf, dict_ldap->dereference);
ADDINT(keybuf, dict_ldap->chase_referrals);
ADDINT(keybuf, dict_ldap->debuglevel);
ADDINT(keybuf, dict_ldap->version);
#ifdef LDAP_API_FEATURE_X_OPENLDAP
ADDINT(keybuf, dict_ldap->ldap_ssl);
ADDINT(keybuf, dict_ldap->start_tls);
ADDINT(keybuf, sslon ? dict_ldap->tls_require_cert : 0);
ADDSTR(keybuf, sslon ? dict_ldap->tls_ca_cert_file : "");
ADDSTR(keybuf, sslon ? dict_ldap->tls_ca_cert_dir : "");
ADDSTR(keybuf, sslon ? dict_ldap->tls_cert : "");
ADDSTR(keybuf, sslon ? dict_ldap->tls_key : "");
ADDSTR(keybuf, sslon ? dict_ldap->tls_random_file : "");
ADDSTR(keybuf, sslon ? dict_ldap->tls_cipher_suite : "");
#endif
key = vstring_str(keybuf);
len = VSTRING_LEN(keybuf);
if (conn_hash == 0)
conn_hash = binhash_create(0);
if ((dict_ldap->ht = binhash_locate(conn_hash, key, len)) == 0) {
conn = (LDAP_CONN *) mymalloc(sizeof(LDAP_CONN));
conn->conn_ld = 0;
conn->conn_refcount = 0;
dict_ldap->ht = binhash_enter(conn_hash, key, len, (char *) conn);
}
++DICT_LDAP_CONN(dict_ldap)->conn_refcount;
vstring_free(keybuf);
}
void mypwfree(struct mypasswd * mypwd)
{
if (mypwd->refcount < 1)
msg_panic("mypwfree: refcount %d", mypwd->refcount);
/*
* See mypwenter() for the reason behind the binhash_locate() test.
*/
if (--mypwd->refcount == 0) {
htable_delete(mypwcache_name, mypwd->pw_name, (void (*) (char *)) 0);
if (binhash_locate(mypwcache_uid, (char *) &mypwd->pw_uid,
sizeof(mypwd->pw_uid)))
binhash_delete(mypwcache_uid, (char *) &mypwd->pw_uid,
sizeof(mypwd->pw_uid), (void (*) (char *)) 0);
myfree(mypwd->pw_name);
myfree(mypwd->pw_passwd);
myfree(mypwd->pw_gecos);
myfree(mypwd->pw_dir);
myfree(mypwd->pw_shell);
myfree((char *) mypwd);
}
}