#include <rpc/xdr.h>
#include <rpcsvc/yp.h>
#include <rpcsvc/ypclnt.h>
+#include <notify.h>
+#include <pthread.h>
#include "ypinternal.h"
+extern int notify_register_plain(char *, int *);
+
struct dom_binding *_ypbindlist = NULL;
char _yp_domain[MAXHOSTNAMELEN] = { '\0' };
struct dom_binding **ypdb;
{
static int pid = -1;
- char path[MAXPATHLEN];
struct dom_binding *ysd, *ysd2;
struct ypbind_resp ypbr;
struct timeval tv;
struct ypbind_binding *bn;
int clnt_sock, fd, gpid;
CLIENT *client;
- int new = 0, r;
+ int new = 0, r, proto;
int count = 0;
u_short port;
+ int status, notify_token;
+ uint64_t abort;
+ char *notify_name;
/*
* test if YP is running or not
*/
- if ((fd = open(YPBINDLOCK, O_RDONLY)) == -1)
- return YPERR_YPBIND;
- if (!(flock(fd, LOCK_EX | LOCK_NB) == -1 && errno == EWOULDBLOCK)) {
- (void)close(fd);
+ if ((fd = open(YPBINDLOCK, O_RDONLY)) == -1) return YPERR_YPBIND;
+
+ if (!((flock(fd, LOCK_EX | LOCK_NB) == -1) && (errno == EWOULDBLOCK)))
+ {
+ close(fd);
return YPERR_YPBIND;
}
- (void)close(fd);
+
+ close(fd);
gpid = getpid();
- if (!(pid == -1 || pid == gpid)) {
+ if (!((pid == -1) || (pid == gpid)))
+ {
ysd = _ypbindlist;
- while (ysd) {
- if (ysd->dom_client)
- clnt_destroy(ysd->dom_client);
+ while (ysd)
+ {
+ if (ysd->dom_client) clnt_destroy(ysd->dom_client);
ysd2 = ysd->dom_pnext;
free(ysd);
ysd = ysd2;
}
+
_ypbindlist = NULL;
}
+
pid = gpid;
- if (ypdb != NULL)
- *ypdb = NULL;
+ if (ypdb != NULL) *ypdb = NULL;
- if (dom == NULL || strlen(dom) == 0)
- return YPERR_BADARGS;
+ if ((dom == NULL) || (strlen(dom) == 0)) return YPERR_BADARGS;
for (ysd = _ypbindlist; ysd; ysd = ysd->dom_pnext)
- if (strcmp(dom, ysd->dom_domain) == 0)
- break;
- if (ysd == NULL) {
- if ((ysd = malloc(sizeof *ysd)) == NULL)
- return YPERR_YPERR;
- (void)memset(ysd, 0, sizeof *ysd);
+ {
+ if (strcmp(dom, ysd->dom_domain) == 0) break;
+ }
+
+ if (ysd == NULL)
+ {
+ ysd = calloc(1, sizeof(struct dom_binding));
+ if (ysd == NULL) return YPERR_YPERR;
ysd->dom_socket = -1;
ysd->dom_vers = 0;
new = 1;
}
-again:
- if (ysd->dom_vers == 0) {
- (void) snprintf(path, sizeof(path), "%s/%s.%d",
- BINDINGDIR, dom, 2);
- if ((fd = open(path, O_RDONLY)) == -1) {
- /*
- * no binding file, YP is dead, or not yet fully
- * alive.
- */
- goto trynet;
- }
- if (flock(fd, LOCK_EX | LOCK_NB) == -1 &&
- errno == EWOULDBLOCK) {
- struct iovec iov[2];
- u_short ypb_port;
- /*
- * we fetch the ypbind port number, but do
- * nothing with it.
- */
- iov[0].iov_base = (caddr_t) &ypb_port;
- iov[0].iov_len = sizeof ypb_port;
- iov[1].iov_base = (caddr_t) &ypbr;
- iov[1].iov_len = sizeof ypbr;
-
- r = readv(fd, iov, 2);
- if (r != iov[0].iov_len + iov[1].iov_len) {
- (void)close(fd);
- ysd->dom_vers = -1;
- goto again;
- }
- (void)close(fd);
- goto gotdata;
- } else {
- /* no lock on binding file, YP is dead. */
- (void)close(fd);
- if (new)
- free(ysd);
+ /*
+ * Get notification token
+ * we use a self-notification token to allow a caller
+ * to signal the thread doing this bind call to quit.
+ */
+ notify_name = NULL;
+ notify_token = -1;
+
+ asprintf(¬ify_name, "self.thread.%lu", (unsigned long)pthread_self());
+ if (notify_name != NULL)
+ {
+ status = notify_register_plain(notify_name, ¬ify_token);
+ free(notify_name);
+ }
+
+again:
+ if (notify_token != -1)
+ {
+ abort = 0;
+ status = notify_get_state(notify_token, &abort);
+ if (abort == ThreadStateExitRequested)
+ {
+ if (new) free(ysd);
+ notify_cancel(notify_token);
return YPERR_YPBIND;
}
}
-trynet:
- if (ysd->dom_vers == -1 || ysd->dom_vers == 0) {
- (void)memset(&clnt_sin, 0, sizeof clnt_sin);
+
+ proto = YP_BIND_UDP;
+ if (ysd->dom_vers == YP_BIND_TCP) proto = YP_BIND_TCP;
+
+ if ((ysd->dom_vers == 0) || (ysd->dom_vers == YP_BIND_UDP) || (ysd->dom_vers == YP_BIND_TCP))
+ {
+ memset(&clnt_sin, 0, sizeof clnt_sin);
clnt_sin.sin_len = sizeof(struct sockaddr_in);
clnt_sin.sin_family = AF_INET;
clnt_sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
clnt_sock = RPC_ANYSOCK;
- client = clnttcp_create(&clnt_sin, YPBINDPROG, YPBINDVERS,
- &clnt_sock, 0, 0);
- if (client == NULL) {
+ client = clnttcp_create(&clnt_sin, YPBINDPROG, YPBINDVERS, &clnt_sock, 0, 0);
+ if (client == NULL)
+ {
clnt_pcreateerror("clnttcp_create");
- if (new)
- free(ysd);
+ if (new) free(ysd);
+ if (notify_token != -1) notify_cancel(notify_token);
return YPERR_YPBIND;
}
- if (ntohs(clnt_sin.sin_port) >= IPPORT_RESERVED ||
- ntohs(clnt_sin.sin_port) == 20) {
+
+ if ((ntohs(clnt_sin.sin_port) >= IPPORT_RESERVED) || (ntohs(clnt_sin.sin_port) == 20))
+ {
/*
* YP was not running, but someone has registered
* ypbind with portmap -- this simply means YP is
* not running.
*/
clnt_destroy(client);
- if (new)
- free(ysd);
+ if (new) free(ysd);
+ if (notify_token != -1) notify_cancel(notify_token);
return YPERR_YPBIND;
}
+
tv.tv_sec = _yplib_timeout;
tv.tv_usec = 0;
- r = clnt_call(client, YPBINDPROC_DOMAIN, xdr_domainname,
- &dom, xdr_ypbind_resp, &ypbr, tv);
- if (r != RPC_SUCCESS) {
- if (new == 0 || count)
- fprintf(stderr,
- "YP server for domain %s not responding, still trying\n",
- dom);
+
+ r = clnt_call(client, YPBINDPROC_DOMAIN, (xdrproc_t)xdr_domainname, &dom, (xdrproc_t)xdr_ypbind_resp, &ypbr, tv);
+ if (r != RPC_SUCCESS)
+ {
+ if (new == 0 || count) fprintf(stderr, "YP server for domain %s not responding, still trying\n", dom);
count++;
clnt_destroy(client);
- ysd->dom_vers = -1;
+ ysd->dom_vers = proto;
goto again;
}
+
clnt_destroy(client);
-gotdata:
+
bn = &ypbr.ypbind_resp_u.ypbind_bindinfo;
memcpy(&port, &bn->ypbind_binding_port, sizeof port);
- if (ntohs(port) >= IPPORT_RESERVED ||
- ntohs(port) == 20) {
+ if ((ntohs(port) >= IPPORT_RESERVED) || (ntohs(port) == 20))
+ {
/*
* This is bogus -- the ypbind wants me to
* communicate to an insecure ypserv. We are
* but for now we'll simply ignore it; real YP
* is obviously not running.
*/
- if (new)
- free(ysd);
+ if (new) free(ysd);
+ if (notify_token != -1) notify_cancel(notify_token);
return YPERR_YPBIND;
}
- (void)memset(&ysd->dom_server_addr, 0,
- sizeof ysd->dom_server_addr);
+
+ memset(&ysd->dom_server_addr, 0, sizeof ysd->dom_server_addr);
ysd->dom_server_addr.sin_len = sizeof(struct sockaddr_in);
ysd->dom_server_addr.sin_family = AF_INET;
- memcpy(&ysd->dom_server_addr.sin_port,
- &bn->ypbind_binding_port,
- sizeof(ysd->dom_server_addr.sin_port));
- memcpy(&ysd->dom_server_addr.sin_addr.s_addr,
- &bn->ypbind_binding_addr,
- sizeof(ysd->dom_server_addr.sin_addr.s_addr));
+ memcpy(&ysd->dom_server_addr.sin_port, &bn->ypbind_binding_port, sizeof(ysd->dom_server_addr.sin_port));
+ memcpy(&ysd->dom_server_addr.sin_addr.s_addr, &bn->ypbind_binding_addr, sizeof(ysd->dom_server_addr.sin_addr.s_addr));
ysd->dom_server_port = ysd->dom_server_addr.sin_port;
ysd->dom_vers = YPVERS;
- (void)strncpy(ysd->dom_domain, dom, sizeof ysd->dom_domain-1);
+ strncpy(ysd->dom_domain, dom, sizeof ysd->dom_domain-1);
ysd->dom_domain[sizeof ysd->dom_domain-1] = '\0';
}
+
tv.tv_sec = _yplib_timeout / 2;
tv.tv_usec = 0;
- if (ysd->dom_client)
- clnt_destroy(ysd->dom_client);
+
+ if (ysd->dom_client) clnt_destroy(ysd->dom_client);
ysd->dom_socket = RPC_ANYSOCK;
- ysd->dom_client = clntudp_create(&ysd->dom_server_addr,
- YPPROG, YPVERS, tv, &ysd->dom_socket);
- if (ysd->dom_client == NULL) {
- clnt_pcreateerror("clntudp_create");
- ysd->dom_vers = -1;
+
+ if (proto == YP_BIND_UDP) ysd->dom_client = clntudp_create(&ysd->dom_server_addr, YPPROG, YPVERS, tv, &ysd->dom_socket);
+ else ysd->dom_client = clnttcp_create(&ysd->dom_server_addr, YPPROG, YPVERS, &ysd->dom_socket, 0, 0);
+
+ if (ysd->dom_client == NULL)
+ {
+ if (proto == YP_BIND_UDP) clnt_pcreateerror("clntudp_create");
+ else clnt_pcreateerror("clnttcp_create");
+ ysd->dom_vers = proto;
goto again;
}
+
+ if (notify_token != -1) notify_cancel(notify_token);
+
if (fcntl(ysd->dom_socket, F_SETFD, 1) == -1)
perror("fcntl: F_SETFD");
- if (new) {
+ if (new != 0)
+ {
ysd->dom_pnext = _ypbindlist;
_ypbindlist = ysd;
}
- if (ypdb != NULL)
- *ypdb = ysd;
+
+ if (ypdb != NULL) *ypdb = ysd;
return 0;
}
projects / apple / libinfo.git / blobdiff