diff options
Diffstat (limited to 'libc/inet/rpc/clnt_generic.c')
| -rw-r--r-- | libc/inet/rpc/clnt_generic.c | 194 |
1 files changed, 126 insertions, 68 deletions
diff --git a/libc/inet/rpc/clnt_generic.c b/libc/inet/rpc/clnt_generic.c index 5b4b5997f..79df33113 100644 --- a/libc/inet/rpc/clnt_generic.c +++ b/libc/inet/rpc/clnt_generic.c @@ -1,4 +1,3 @@ -/* @(#)clnt_generic.c 2.2 88/08/01 4.0 RPCSRC */ /* * Sun RPC is a product of Sun Microsystems, Inc. and is provided for * unrestricted use provided that this legend is included on all tape @@ -6,11 +5,11 @@ * may copy or modify Sun RPC without charge, but are not authorized * to license or distribute it to anyone else except as part of a product or * program developed by the user. - * + * * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. - * + * * Sun RPC is provided with no support and without any obligation on the * part of Sun Microsystems, Inc. to assist in its use, correction, * modification or enhancement. @@ -18,20 +17,25 @@ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC * OR ANY PART THEREOF. - * + * * In no event will Sun Microsystems, Inc. be liable for any lost revenue * or profits or other special, indirect and consequential damages, even if * Sun has been advised of the possibility of such damages. - * + * * Sun Microsystems, Inc. * 2550 Garcia Avenue * Mountain View, California 94043 */ -#define __FORCE_GLIBC -#include <features.h> /* * Copyright (C) 1987, Sun Microsystems, Inc. */ + +#define __FORCE_GLIBC +#include <features.h> + +#include <alloca.h> +#include <errno.h> +#include <string.h> #include <rpc/rpc.h> #include <sys/socket.h> #include <sys/errno.h> @@ -39,72 +43,126 @@ /* * Generic client creation: takes (hostname, program-number, protocol) and - * returns client handle. Default options are set, which the user can + * returns client handle. Default options are set, which the user can * change using the rpc equivalent of ioctl()'s. */ -CLIENT *clnt_create __P ((const char *hostname, const u_long prog, - const u_long vers, const char *proto)) +CLIENT * +clnt_create (const char *hostname, u_long prog, u_long vers, + const char *proto) { - struct hostent *h; - struct protoent *p; - struct sockaddr_in sin; - int sock; - struct timeval tv; - CLIENT *client; + struct hostent hostbuf, *h; + size_t hstbuflen; + char *hsttmpbuf; + struct protoent *p; + struct sockaddr_in sin; + struct sockaddr_un sun; + int sock; + struct timeval tv; + CLIENT *client; + int herr; - h = gethostbyname(hostname); - if (h == NULL) { - rpc_createerr.cf_stat = RPC_UNKNOWNHOST; - return (NULL); - } - if (h->h_addrtype != AF_INET) { - /* - * Only support INET for now - */ - rpc_createerr.cf_stat = RPC_SYSTEMERROR; - rpc_createerr.cf_error.re_errno = EAFNOSUPPORT; - return (NULL); - } -#ifdef __linux__ - bzero((char *) &sin, sizeof(sin)); -#endif - sin.sin_family = h->h_addrtype; - sin.sin_port = 0; -#ifndef __linux__ - bzero(sin.sin_zero, sizeof(sin.sin_zero)); + if (strcmp (proto, "unix") == 0) + { + bzero ((char *)&sun, sizeof (sun)); + sun.sun_family = AF_UNIX; + strcpy (sun.sun_path, hostname); + sock = RPC_ANYSOCK; + client = clntunix_create (&sun, prog, vers, &sock, 0, 0); + if (client == NULL) + return NULL; +#if 0 + /* This is not wanted. This would disable the user from having + a timeout in the clnt_call() call. Only a call to cnlt_control() + by the user should set the timeout value. */ + tv.tv_sec = 25; + tv.tv_usec = 0; + clnt_control (client, CLSET_TIMEOUT, (char *)&tv); #endif - bcopy(h->h_addr, (char *) &sin.sin_addr, h->h_length); - p = getprotobyname(proto); - if (p == NULL) { - rpc_createerr.cf_stat = RPC_UNKNOWNPROTO; - rpc_createerr.cf_error.re_errno = EPFNOSUPPORT; - return (NULL); + return client; + } + + hstbuflen = 1024; + hsttmpbuf = alloca (hstbuflen); + while (gethostbyname_r (hostname, &hostbuf, hsttmpbuf, hstbuflen, + &h, &herr) != 0 + || h == NULL) + if (herr != NETDB_INTERNAL || errno != ERANGE) + { + get_rpc_createerr().cf_stat = RPC_UNKNOWNHOST; + return NULL; + } + else + { + /* Enlarge the buffer. */ + hstbuflen *= 2; + hsttmpbuf = alloca (hstbuflen); + } + + if (h->h_addrtype != AF_INET) + { + /* + * Only support INET for now + */ + struct rpc_createerr *ce = &get_rpc_createerr (); + ce->cf_stat = RPC_SYSTEMERROR; + ce->cf_error.re_errno = EAFNOSUPPORT; + return NULL; + } + sin.sin_family = h->h_addrtype; + sin.sin_port = 0; + bzero (sin.sin_zero, sizeof (sin.sin_zero)); + memcpy ((char *) &sin.sin_addr, h->h_addr, h->h_length); + +#warning getprotobyname is not reentrant... Add getprotobyname_r + p = getprotobyname(proto); + if (p == NULL) { + struct rpc_createerr *ce = &get_rpc_createerr (); + ce->cf_stat = RPC_UNKNOWNPROTO; + ce->cf_error.re_errno = EPFNOSUPPORT; + return NULL; + } + + sock = RPC_ANYSOCK; + switch (p->p_proto) + { + case IPPROTO_UDP: + tv.tv_sec = 5; + tv.tv_usec = 0; + client = clntudp_create (&sin, prog, vers, tv, &sock); + if (client == NULL) + { + return NULL; } - sock = RPC_ANYSOCK; - switch (p->p_proto) { - case IPPROTO_UDP: - tv.tv_sec = 5; - tv.tv_usec = 0; - client = clntudp_create(&sin, prog, vers, tv, &sock); - if (client == NULL) { - return (NULL); - } - tv.tv_sec = 25; - clnt_control(client, CLSET_TIMEOUT, (char*)&tv); - break; - case IPPROTO_TCP: - client = clnttcp_create(&sin, prog, vers, &sock, 0, 0); - if (client == NULL) { - return (NULL); - } - tv.tv_sec = 25; - tv.tv_usec = 0; - clnt_control(client, CLSET_TIMEOUT, (char*)&tv); - break; - default: - rpc_createerr.cf_stat = RPC_SYSTEMERROR; - rpc_createerr.cf_error.re_errno = EPFNOSUPPORT; - return (NULL); +#if 0 + /* This is not wanted. This would disable the user from having + a timeout in the clnt_call() call. Only a call to cnlt_control() + by the user should set the timeout value. */ + tv.tv_sec = 25; + clnt_control (client, CLSET_TIMEOUT, (char *)&tv); +#endif + break; + case IPPROTO_TCP: + client = clnttcp_create (&sin, prog, vers, &sock, 0, 0); + if (client == NULL) + { + return NULL; } - return (client); +#if 0 + /* This is not wanted. This would disable the user from having + a timeout in the clnt_call() call. Only a call to cnlt_control() + by the user should set the timeout value. */ + tv.tv_sec = 25; + tv.tv_usec = 0; + clnt_control (client, CLSET_TIMEOUT, (char *)&tv); +#endif + break; + default: + { + struct rpc_createerr *ce = &get_rpc_createerr (); + ce->cf_stat = RPC_SYSTEMERROR; + ce->cf_error.re_errno = EPFNOSUPPORT; + } + return (NULL); + } + return client; } |