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authorWaldemar Brodkorb <wbx@openadk.org>2017-03-20 18:10:36 +0100
committerWaldemar Brodkorb <wbx@openadk.org>2017-03-20 18:10:36 +0100
commita1a8064169aeda79e3266a2db9cce25e361a86dc (patch)
tree526902649b5dfb9e1e9f6c632349df475a6bb597 /libc/inet/rpc/rexec.c
parent2d8ea0524b016d29cf28615449b22b96dd5067b2 (diff)
remove RPC implementation
The included RPC implementation is ipv4 only. Other C library projects have either deprecated the internal RPC implementation (GNU C Library) or never implemented such functionality (musl C Library). The latest rpcbind release (0.2.4) checks for libtirpc and does not allow to be build with uClibc-ng RPC without patching. The common use case for RPC nowadays is to use rpcbind together with nfs-utils to provide NFS server or client support to a system. The included RPC implementation does create issues with duplicate symbol failures when statically compiling with RPC enabled.
Diffstat (limited to 'libc/inet/rpc/rexec.c')
-rw-r--r--libc/inet/rpc/rexec.c193
1 files changed, 0 insertions, 193 deletions
diff --git a/libc/inet/rpc/rexec.c b/libc/inet/rpc/rexec.c
deleted file mode 100644
index e17be50b2..000000000
--- a/libc/inet/rpc/rexec.c
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * Copyright (c) 1980, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/types.h>
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-
-#include <alloca.h>
-#include <stdio.h>
-#include <netdb.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <malloc.h>
-
-#define SA_LEN(_x) __libc_sa_len((_x)->sa_family)
-extern int __libc_sa_len(sa_family_t __af) __THROW attribute_hidden;
-
-/* int rexecoptions; - google does not know it */
-static char *ahostbuf = NULL;
-
-int
-rexec_af(char **ahost, int rport, const char *name, const char *pass, const char *cmd, int *fd2p, sa_family_t af)
-{
- struct sockaddr_storage sa2, from;
- struct addrinfo hints, *res0;
- const char *orig_name = name;
- const char *orig_pass = pass;
- u_short port = 0;
- int s, timo = 1, s3;
- char c;
- int gai;
- char servbuff[NI_MAXSERV];
-
- if (sizeof(servbuff) < sizeof(int)*3 + 2) {
- snprintf(servbuff, sizeof(servbuff), "%d", ntohs(rport));
- servbuff[sizeof(servbuff) - 1] = '\0';
- } else {
- sprintf(servbuff, "%d", ntohs(rport));
- }
-
- memset(&hints, '\0', sizeof(hints));
- hints.ai_family = af;
- hints.ai_socktype = SOCK_STREAM;
- hints.ai_flags = AI_CANONNAME;
- gai = getaddrinfo(*ahost, servbuff, &hints, &res0);
- if (gai) {
- /* XXX: set errno? */
- return -1;
- }
-
- if (res0->ai_canonname) {
- if (!ahostbuf)
- ahostbuf = __uc_malloc(NI_MAXHOST);
- strncpy(ahostbuf, res0->ai_canonname, NI_MAXHOST);
- ahostbuf[NI_MAXHOST-1] = '\0';
- *ahost = ahostbuf;
- }
- else {
- *ahost = NULL;
- __set_errno(ENOENT);
- return -1;
- }
- ruserpass(res0->ai_canonname, &name, &pass);
-retry:
- s = socket(res0->ai_family, res0->ai_socktype, 0);
- if (s < 0) {
- perror("rexec: socket");
- return -1;
- }
- if (connect(s, res0->ai_addr, res0->ai_addrlen) < 0) {
- if (errno == ECONNREFUSED && timo <= 16) {
- (void) close(s);
- sleep(timo);
- timo *= 2;
- goto retry;
- }
- perror(res0->ai_canonname);
- return -1;
- }
- if (fd2p == 0) {
- (void) write(s, "", 1);
- port = 0;
- } else {
- char num[32];
- int s2;
- socklen_t sa2len;
-
- s2 = socket(res0->ai_family, res0->ai_socktype, 0);
- if (s2 < 0) {
- (void) close(s);
- return -1;
- }
- listen(s2, 1);
- sa2len = sizeof(sa2);
- if (getsockname(s2, (struct sockaddr *)&sa2, &sa2len) < 0) {
- perror("getsockname");
- (void) close(s2);
- goto bad;
- } else if (sa2len != SA_LEN((struct sockaddr *)&sa2)) {
- __set_errno(EINVAL);
- (void) close(s2);
- goto bad;
- }
- port = 0;
- if (!getnameinfo((struct sockaddr *)&sa2, sa2len,
- NULL, 0, servbuff, sizeof(servbuff),
- NI_NUMERICSERV))
- port = atoi(servbuff);
- (void) sprintf(num, "%u", port);
- (void) write(s, num, strlen(num)+1);
- {
- socklen_t len = sizeof(from);
- s3 = TEMP_FAILURE_RETRY(accept(s2,
- (struct sockaddr *)&from, &len));
- close(s2);
- if (s3 < 0) {
- perror("accept");
- port = 0;
- goto bad;
- }
- }
- *fd2p = s3;
- }
- (void) write(s, name, strlen(name) + 1);
- /* should public key encypt the password here */
- (void) write(s, pass, strlen(pass) + 1);
- (void) write(s, cmd, strlen(cmd) + 1);
-
- /* We don't need the memory allocated for the name and the password
- in ruserpass anymore. */
- if (name != orig_name)
- free((char *) name);
- if (pass != orig_pass)
- free((char *) pass);
-
- if (read(s, &c, 1) != 1) {
- perror(*ahost);
- goto bad;
- }
- if (c != 0) {
- while (read(s, &c, 1) == 1) {
- (void) write(2, &c, 1);
- if (c == '\n')
- break;
- }
- goto bad;
- }
- freeaddrinfo(res0);
- return s;
-bad:
- if (port)
- (void) close(*fd2p);
- (void) close(s);
- freeaddrinfo(res0);
- return -1;
-}
-libc_hidden_def(rexec_af)
-
-int
-rexec(char **ahost, int rport, const char *name, const char *pass,
- const char *cmd, int *fd2p)
-{
- return rexec_af(ahost, rport, name, pass, cmd, fd2p, AF_INET);
-}