3 /*-
4  * SPDX-License-Identifier: BSD-3-Clause
11  * - Redistributions of source code must retain the above copyright notice, 
13  * - Redistributions in binary form must reproduce the above copyright notice, 
16  * - Neither the name of Sun Microsystems, Inc. nor the names of its 
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
48 #include <rpc/rpc.h>
56 #include "un-namespace.h"
63 #define	RPCDB	"/etc/rpc"
113 	struct rpcent	rpc;  member
141 rpcent_unpack(char *p, struct rpcent *rpc, char **r_aliases,  in rpcent_unpack()  argument
148 	if (*p == '#')  in rpcent_unpack()
149 		return (-1);  in rpcent_unpack()
151 	if (cp == NULL)  in rpcent_unpack()
152 		return (-1);  in rpcent_unpack()
155 	if (cp == NULL)  in rpcent_unpack()
156 		return (-1);  in rpcent_unpack()
159 	rpc->r_name = p;  in rpcent_unpack()
162 	rpc->r_number = atoi(cp);  in rpcent_unpack()
163 	q = rpc->r_aliases = r_aliases;  in rpcent_unpack()
165 	if (cp != NULL)  in rpcent_unpack()
168 		if (*cp == ' ' || *cp == '\t') {  in rpcent_unpack()
172 		if (q < &(r_aliases[aliases_size - 1]))  in rpcent_unpack()
176 			return -1;  in rpcent_unpack()
180 		if (cp != NULL)  in rpcent_unpack()
193 	if (p == NULL)  in files_endstate()
196 	f = ((struct files_state *)p)->fp;  in files_endstate()
197 	if (f != NULL)  in files_endstate()
208 	struct rpcent *rpc;  in files_rpcent()  local
239 	rpc = va_arg(ap, struct rpcent *);  in files_rpcent()
245 	if (*errnop != 0)  in files_rpcent()
248 	if (st->fp == NULL && (st->fp = fopen(RPCDB, "r")) == NULL) {  in files_rpcent()
253 	if (how == nss_lt_all)  in files_rpcent()
256 		rewind(st->fp);  in files_rpcent()
257 		stayopen = st->stayopen;  in files_rpcent()
261 		if ((line = fgetln(st->fp, &linesize)) == NULL) {  in files_rpcent()
267 		if (bufsize <= linesize + _ALIGNBYTES + sizeof(char *)) {  in files_rpcent()
274 		aliases_size = (buffer + bufsize -  in files_rpcent()
276 		if (aliases_size < 1) {  in files_rpcent()
285 		rv = rpcent_unpack(buffer, rpc, aliases, aliases_size, errnop);  in files_rpcent()
286 		if (rv != 0) {  in files_rpcent()
287 			if (*errnop == 0) {  in files_rpcent()
300 			if (strcmp(rpc->r_name, name) == 0)  in files_rpcent()
302 			for (rp = rpc->r_aliases; *rp != NULL; rp++) {  in files_rpcent()
303 				if (strcmp(*rp, name) == 0)  in files_rpcent()
312 			rv = (rpc->r_number == number) ? NS_SUCCESS :  in files_rpcent()
322 	if (!stayopen && st->fp!=NULL) {  in files_rpcent()
323 		fclose(st->fp);  in files_rpcent()
324 		st->fp = NULL;  in files_rpcent()
327 	if ((rv == NS_SUCCESS) && (retval != NULL))  in files_rpcent()
328 		*((struct rpcent **)retval) = rpc;  in files_rpcent()
341 	if (rv != 0)  in files_setrpcent()
348 		if (st->fp == NULL)  in files_setrpcent()
349 			st->fp = fopen(RPCDB, "r");  in files_setrpcent()
351 			rewind(st->fp);  in files_setrpcent()
352 		st->stayopen |= f;  in files_setrpcent()
355 		if (st->fp != NULL) {  in files_setrpcent()
356 			fclose(st->fp);  in files_setrpcent()
357 			st->fp = NULL;  in files_setrpcent()
359 		st->stayopen = 0;  in files_setrpcent()
373 	if (p == NULL)  in nis_endstate()
376 	free(((struct nis_state *)p)->current);  in nis_endstate()
385 	struct rpcent	*rpc;  in nis_rpcent()  local
420 	rpc = va_arg(ap, struct rpcent *);  in nis_rpcent()
426 	if (*errnop != 0)  in nis_rpcent()
429 	if (st->domain[0] == '\0') {  in nis_rpcent()
430 		if (getdomainname(st->domain, sizeof(st->domain)) != 0) {  in nis_rpcent()
441 			if (!st->no_name_map)  in nis_rpcent()
445 				if (buf == NULL)  in nis_rpcent()
447 				rv = yp_match(st->domain, "rpc.byname", buf,  in nis_rpcent()
454 					st->stepping = 0;  in nis_rpcent()
465 				st->stepping = 0;  in nis_rpcent()
476 			if (buf == NULL)  in nis_rpcent()
478 			if (yp_match(st->domain, "rpc.bynumber", buf,  in nis_rpcent()
485 				if (!st->stepping) {  in nis_rpcent()
486 					rv = yp_first(st->domain, "rpc.bynumber",  in nis_rpcent()
487 				    		&st->current,  in nis_rpcent()
488 						&st->currentlen, &resultbuf,  in nis_rpcent()
490 					if (rv) {  in nis_rpcent()
494 					st->stepping = 1;  in nis_rpcent()
496 					lastkey = st->current;  in nis_rpcent()
497 					rv = yp_next(st->domain, "rpc.bynumber",  in nis_rpcent()
498 				    		st->current,  in nis_rpcent()
499 						st->currentlen, &st->current,  in nis_rpcent()
500 				    		&st->currentlen,  in nis_rpcent()
503 					if (rv) {  in nis_rpcent()
504 						st->stepping = 0;  in nis_rpcent()
513 		if (bufsize <= resultbuflen + 1 + _ALIGNBYTES +  in nis_rpcent()
522 		aliases_size = (buffer + bufsize - (char *)aliases) /  in nis_rpcent()
524 		if (aliases_size < 1) {  in nis_rpcent()
532 		 * rpcent_unpack expects lines terminated with \n -- make it happy  in nis_rpcent()
539 		if (rpcent_unpack(buffer, rpc, aliases, aliases_size,  in nis_rpcent()
541 			if (*errnop == 0)  in nis_rpcent()
546 			if ((how == nss_lt_all) && (no_name_active != 0)) {  in nis_rpcent()
547 				if (strcmp(rpc->r_name, name) == 0)  in nis_rpcent()
549 				for (rp = rpc->r_aliases; *rp != NULL; rp++) {  in nis_rpcent()
550 					if (strcmp(*rp, name) == 0)  in nis_rpcent()
565 	if ((rv == NS_SUCCESS) && (retval != NULL))  in nis_rpcent()
566 		*((struct rpcent **)retval) = rpc;  in nis_rpcent()
578 	if (rv != 0)  in nis_setrpcent()
585 		free(st->current);  in nis_setrpcent()
586 		st->current = NULL;  in nis_setrpcent()
587 		st->stepping = 0;  in nis_setrpcent()
602 	int rpc;  in rpc_id_func()  local
615 		if (desired_size > *buffer_size) {  in rpc_id_func()
626 		rpc = va_arg(ap, int);  in rpc_id_func()
629 		if (desired_size > *buffer_size) {  in rpc_id_func()
635 		memcpy(buffer + sizeof(enum nss_lookup_type), &rpc,  in rpc_id_func()
656 	struct rpcent *rpc;  in rpc_marshal_func()  local
679 	rpc = va_arg(ap, struct rpcent *);  in rpc_marshal_func()
684 	if (rpc->r_name != NULL)  in rpc_marshal_func()
685 		desired_size += strlen(rpc->r_name) + 1;  in rpc_marshal_func()
687 	if (rpc->r_aliases != NULL) {  in rpc_marshal_func()
689 		for (alias = rpc->r_aliases; *alias; ++alias) {  in rpc_marshal_func()
698 	if (*buffer_size < desired_size) {  in rpc_marshal_func()
704 	new_rpc = *rpc;  in rpc_marshal_func()
712 	if (new_rpc.r_name != NULL) {  in rpc_marshal_func()
719 	if (new_rpc.r_aliases != NULL) {  in rpc_marshal_func()
743 	struct rpcent *rpc;  in rpc_unmarshal_func()  local
765 	rpc = va_arg(ap, struct rpcent *);  in rpc_unmarshal_func()
770 	if (orig_buf_size <  in rpc_unmarshal_func()
771 	    buffer_size - sizeof(struct rpcent) - sizeof(char *)) {  in rpc_unmarshal_func()
776 	memcpy(rpc, buffer, sizeof(struct rpcent));  in rpc_unmarshal_func()
781 	    _ALIGN(p) - (size_t)p,  in rpc_unmarshal_func()
782 	    buffer_size - sizeof(struct rpcent) - sizeof(char *) -  in rpc_unmarshal_func()
786 	NS_APPLY_OFFSET(rpc->r_name, orig_buf, p, char *);  in rpc_unmarshal_func()
787 	if (rpc->r_aliases != NULL) {  in rpc_unmarshal_func()
788 		NS_APPLY_OFFSET(rpc->r_aliases, orig_buf, p, char **);  in rpc_unmarshal_func()
790 		for (alias = rpc->r_aliases	; *alias; ++alias)  in rpc_unmarshal_func()
794 	if (retval != NULL)  in rpc_unmarshal_func()
795 		*((struct rpcent **)retval) = rpc;  in rpc_unmarshal_func()
800 NSS_MP_CACHE_HANDLING(rpc);
806 getrpcbyname_r(const char *name, struct rpcent *rpc, char *buffer,  in getrpcbyname_r()  argument
812 		rpc, (void *)nss_lt_name,  in getrpcbyname_r()
830 	    name, rpc, buffer, bufsize, &ret_errno);  in getrpcbyname_r()
832 	if (rv == NS_SUCCESS)  in getrpcbyname_r()
839 getrpcbynumber_r(int number, struct rpcent *rpc, char *buffer,  in getrpcbynumber_r()  argument
845 		rpc, (void *)nss_lt_id,  in getrpcbynumber_r()
863 	    number, rpc, buffer, bufsize, &ret_errno);  in getrpcbynumber_r()
865 	if (rv == NS_SUCCESS)  in getrpcbynumber_r()
872 getrpcent_r(struct rpcent *rpc, char *buffer, size_t bufsize,  in getrpcent_r()  argument
877 		rpc, (void *)nss_lt_all,  in getrpcent_r()
895 	    rpc, buffer, bufsize, &ret_errno);  in getrpcent_r()
897 	if (rv == NS_SUCCESS)  in getrpcent_r()
907 	if (p == NULL)  in rpcent_endstate()
910 	free(((struct rpcent_state *)p)->buffer);  in rpcent_endstate()
915 wrap_getrpcbyname_r(union key key, struct rpcent *rpc, char *buffer,  in wrap_getrpcbyname_r()  argument
918 	return (getrpcbyname_r(key.name, rpc, buffer, bufsize, res));  in wrap_getrpcbyname_r()
922 wrap_getrpcbynumber_r(union key key, struct rpcent *rpc, char *buffer,  in wrap_getrpcbynumber_r()  argument
925 	return (getrpcbynumber_r(key.number, rpc, buffer, bufsize, res));  in wrap_getrpcbynumber_r()
929 wrap_getrpcent_r(union key key __unused, struct rpcent *rpc, char *buffer,  in wrap_getrpcent_r()  argument
932 	return (getrpcent_r(rpc, buffer, bufsize, res));  in wrap_getrpcent_r()
944 	if (rv != 0) {  in getrpc()
949 	if (st->buffer == NULL) {  in getrpc()
950 		st->buffer = malloc(RPCENT_STORAGE_INITIAL);  in getrpc()
951 		if (st->buffer == NULL)  in getrpc()
953 		st->bufsize = RPCENT_STORAGE_INITIAL;  in getrpc()
956 		rv = fn(key, &st->rpc, st->buffer, st->bufsize, &res);  in getrpc()
957 		if (res == NULL && rv == ERANGE) {  in getrpc()
958 			free(st->buffer);  in getrpc()
959 			if ((st->bufsize << 1) > RPCENT_STORAGE_MAX) {  in getrpc()
960 				st->buffer = NULL;  in getrpc()
964 			st->bufsize <<= 1;  in getrpc()
965 			st->buffer = malloc(st->bufsize);  in getrpc()
966 			if (st->buffer == NULL)  in getrpc()
970 	if (rv != 0)  in getrpc()
1011 		rpc, (void *)nss_lt_all,  in setrpcent()
1035 		rpc, (void *)nss_lt_all,  in endrpcent()