Don't initialize NIS until it is really necessary. Now, in case of network
or NIS server problems, local user can login without a pause. Also, -Wsomething cleanup.
This commit is contained in:
dt
parent
74a908a88d
commit
864c030677
@ -71,7 +71,7 @@ static struct passwd _pw_copy;
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static DBT empty = { NULL, 0 };
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static DB *_ypcache = (DB *)NULL;
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static int _yp_exclusions = 0;
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static int _yp_enabled; /* set true when yp enabled */
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static int _yp_enabled = -1;
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static int _pw_stepping_yp; /* set true when stepping thru map */
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static char _ypnam[YPMAXRECORD];
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#define YP_HAVE_MASTER 2
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@ -80,12 +80,18 @@ static char _ypnam[YPMAXRECORD];
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static int _gotmaster;
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static char *_pw_yp_domain;
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static inline int unwind __P(( char * ));
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static inline void _ypinitdb __P(( void ));
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static void _ypinitdb __P(( void ));
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static int _havemaster __P((char *));
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static int _getyppass __P((struct passwd *, const char *, const char * ));
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static int _nextyppass __P((struct passwd *));
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static inline int lookup __P((const char *));
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static inline void store __P((const char *));
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static inline int ingr __P((const char *, const char*));
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static inline int verf __P((const char *));
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static char * _get_adjunct_pw __P((const char *));
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#endif
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static int __hashpw(), __initdb();
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static int __hashpw(DBT *);
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static int __initdb(void);
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struct passwd *
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getpwent()
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@ -115,6 +121,8 @@ getpwent()
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if(!rv) return (struct passwd *)NULL;
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#ifdef YP
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if(_pw_passwd.pw_name[0] == '+' || _pw_passwd.pw_name[0] == '-') {
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if (_yp_enabled == -1)
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_ypinitdb();
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bzero((char *)&_ypnam, sizeof(_ypnam));
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bcopy(_pw_passwd.pw_name, _ypnam,
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strlen(_pw_passwd.pw_name));
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@ -152,8 +160,12 @@ getpwnam(name)
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rval = __hashpw(&key);
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#ifdef YP
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if (!rval && _yp_enabled)
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rval = _getyppass(&_pw_passwd, name, "passwd.byname");
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if (!rval) {
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if (_yp_enabled == -1)
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_ypinitdb();
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if (_yp_enabled)
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rval = _getyppass(&_pw_passwd, name, "passwd.byname");
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}
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#endif
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/*
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* Prevent login attempts when YP is not enabled but YP entries
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@ -185,10 +197,14 @@ getpwuid(uid)
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rval = __hashpw(&key);
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#ifdef YP
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if (!rval && _yp_enabled) {
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char ypbuf[16]; /* big enough for 32-bit uids and then some */
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snprintf(ypbuf, sizeof ypbuf, "%u", (unsigned)uid);
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rval = _getyppass(&_pw_passwd, ypbuf, "passwd.byuid");
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if (!rval) {
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if (_yp_enabled == -1)
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_ypinitdb();
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if (_yp_enabled) {
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char ypbuf[16]; /* big enough for 32-bit uids */
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snprintf(ypbuf, sizeof ypbuf, "%u", (unsigned)uid);
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rval = _getyppass(&_pw_passwd, ypbuf, "passwd.byuid");
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}
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}
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#endif
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/*
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@ -248,29 +264,8 @@ __initdb()
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p = (geteuid()) ? _PATH_MP_DB : _PATH_SMP_DB;
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_pw_db = dbopen(p, O_RDONLY, 0, DB_HASH, NULL);
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if (_pw_db) {
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#ifdef YP
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DBT key, data;
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char buf[] = { _PW_KEYYPENABLED };
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key.data = buf;
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key.size = 1;
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if ((_pw_db->get)(_pw_db, &key, &data, 0)) {
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_yp_enabled = 0;
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} else {
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_yp_enabled = (int)*((char *)data.data) - 2;
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/* Don't even bother with this if we aren't root. */
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if (!geteuid()) {
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if (!_pw_yp_domain)
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if (yp_get_default_domain(&_pw_yp_domain))
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return(1);
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_gotmaster = _havemaster(_pw_yp_domain);
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} else _gotmaster = YP_HAVE_NONE;
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if (!_ypcache)
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_ypinitdb();
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}
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#endif
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if (_pw_db)
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return(1);
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}
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if (!warned++)
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syslog(LOG_ERR, "%s: %m", p);
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return(0);
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@ -317,29 +312,45 @@ __hashpw(key)
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#ifdef YP
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/*
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* Create a DB hash database in memory. Bet you didn't know you
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* could do a dbopen() will a NULL filename, did you.
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*/
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static inline void _ypinitdb()
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static void
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_ypinitdb()
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{
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if (_ypcache == (DB *)NULL)
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_ypcache = dbopen(NULL, O_RDWR, 600, DB_HASH, NULL);
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return;
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DBT key, data;
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char buf[] = { _PW_KEYYPENABLED };
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key.data = buf;
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key.size = 1;
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_yp_enabled = 0;
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if ((_pw_db->get)(_pw_db, &key, &data, 0) == 0) {
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_yp_enabled = (int)*((char *)data.data) - 2;
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/* Don't even bother with this if we aren't root. */
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if (!geteuid()) {
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if (!_pw_yp_domain)
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if (yp_get_default_domain(&_pw_yp_domain))
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return;
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_gotmaster = _havemaster(_pw_yp_domain);
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} else _gotmaster = YP_HAVE_NONE;
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/*
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* Create a DB hash database in memory. Bet you didn't know you
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* could do a dbopen() with a NULL filename, did you.
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*/
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if (_ypcache == (DB *)NULL)
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_ypcache = dbopen(NULL, O_RDWR, 600, DB_HASH, NULL);
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}
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}
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/*
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* See if a user is in the blackballed list.
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*/
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static inline int lookup(name)
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char *name;
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static inline int
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lookup(name)
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const char *name;
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{
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DBT key;
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if (!_yp_exclusions)
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return(0);
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key.data = name;
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key.data = (char *)name;
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key.size = strlen(name);
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if ((_ypcache->get)(_ypcache, &key, &empty, 0)) {
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@ -352,8 +363,9 @@ static inline int lookup(name)
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/*
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* Store a blackballed user in an in-core hash database.
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*/
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static inline void store(key)
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char *key;
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static inline void
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store(key)
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const char *key;
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{
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DBT lkey;
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/*
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@ -363,7 +375,7 @@ static inline void store(key)
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_yp_exclusions = 1;
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lkey.data = key;
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lkey.data = (char *)key;
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lkey.size = strlen(key);
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(void)(_ypcache->put)(_ypcache, &lkey, &empty, R_NOOVERWRITE);
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@ -381,7 +393,8 @@ static inline void store(key)
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* we don't consider them when processing other + lines that appear
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* later.
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*/
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static inline int unwind(grp)
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static inline int
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unwind(grp)
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char *grp;
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{
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char *user, *host, *domain;
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@ -448,8 +461,8 @@ static inline int unwind(grp)
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rv++;
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}
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if (!rv && (gr = getgrnam(grp+2)) != NULL) {
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while(gr->gr_mem) {
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store(gr->gr_mem);
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while(*gr->gr_mem) {
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store(*gr->gr_mem);
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gr->gr_mem++;
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}
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}
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@ -463,9 +476,10 @@ static inline int unwind(grp)
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/*
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* See if a user is a member of a particular group.
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*/
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static inline int ingr(grp, name)
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char *grp;
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char *name;
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static inline int
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ingr(grp, name)
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const char *grp;
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const char *name;
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{
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register struct group *gr;
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@ -490,8 +504,9 @@ static inline int ingr(grp, name)
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* If no netgroup exists that matches +@netgroup/-@netgroup,
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* try searching regular groups with the same name.
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*/
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static inline int verf(name)
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char *name;
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static inline int
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verf(name)
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const char *name;
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{
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DBT key;
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char bf[sizeof(_pw_keynum) + 1];
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@ -553,8 +568,9 @@ static inline int verf(name)
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return(0);
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}
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static char * _get_adjunct_pw(name)
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char *name;
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static char *
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_get_adjunct_pw(name)
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const char *name;
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{
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static char adjunctbuf[YPMAXRECORD+2];
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int rval;
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