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.

1 files changed, 0 insertions, 345 deletions

diff --git a/libc/inet/rpc/getrpcent.c b/libc/inet/rpc/getrpcent.c
deleted file mode 100644
index dba2a6878..000000000
--- a/libc/inet/rpc/getrpcent.c
+++ /dev/null
@@ -1,345 +0,0 @@
-/* @(#)getrpcent.c	2.2 88/07/29 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
- * media and as a part of the software program in whole or part.  Users
- * 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.
- *
- * 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
- */
-
-/*
- * Copyright (c) 1985 by Sun Microsystems, Inc.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <rpc/rpc.h>
-#include <netdb.h>
-#include <sys/socket.h>
-#include <arpa/inet.h>
-#include <errno.h>
-
-
-/*
- * Internet version.
- */
-static struct rpcdata {
-	FILE *rpcf;
-	char *current;
-	int currentlen;
-	int stayopen;
-#define	MAXALIASES	35
-	char *rpc_aliases[MAXALIASES];
-	struct rpcent rpc;
-	char line[BUFSIZ + 1];
-	char *domain;
-} *rpcdata;
-
-static const char RPCDB[] = "/etc/rpc";
-
-static struct rpcdata *_rpcdata(void)
-{
-	register struct rpcdata *d = rpcdata;
-
-	if (d == NULL) {
-		d = (struct rpcdata *) calloc(1, sizeof(struct rpcdata));
-
-		rpcdata = d;
-	}
-	return d;
-}
-
-void endrpcent(void)
-{
-	register struct rpcdata *d = _rpcdata();
-
-	if (d == NULL)
-		return;
-	if (d->stayopen)
-		return;
-	free(d->current);
-	d->current = NULL;
-	if (d->rpcf) {
-		fclose(d->rpcf);
-		d->rpcf = NULL;
-	}
-}
-libc_hidden_def(endrpcent)
-
-void setrpcent(int f)
-{
-	register struct rpcdata *d = _rpcdata();
-
-	if (d == NULL)
-		return;
-	if (d->rpcf == NULL)
-		d->rpcf = fopen(RPCDB, "r");
-	else
-		rewind(d->rpcf);
-	free(d->current);
-	d->current = NULL;
-	d->stayopen |= f;
-}
-libc_hidden_def(setrpcent)
-
-static struct rpcent *interpret(struct rpcdata *);
-
-static struct rpcent *__get_next_rpcent(struct rpcdata *d)
-{
-	if (fgets(d->line, BUFSIZ, d->rpcf) == NULL)
-		return NULL;
-	return interpret(d);
-}
-
-struct rpcent *getrpcent(void)
-{
-	register struct rpcdata *d = _rpcdata();
-
-	if (d == NULL)
-		return NULL;
-	if (d->rpcf == NULL && (d->rpcf = fopen(RPCDB, "r")) == NULL)
-		return NULL;
-	return __get_next_rpcent(d);
-}
-libc_hidden_def(getrpcent)
-
-struct rpcent *getrpcbynumber(register int number)
-{
-	register struct rpcdata *d = _rpcdata();
-	register struct rpcent *rpc;
-
-	if (d == NULL)
-		return NULL;
-	setrpcent(0);
-	while ((rpc = getrpcent())) {
-		if (rpc->r_number == number)
-			break;
-	}
-	endrpcent();
-	return rpc;
-}
-libc_hidden_def(getrpcbynumber)
-
-struct rpcent *getrpcbyname(const char *name)
-{
-	struct rpcent *rpc;
-	char **rp;
-
-	setrpcent(0);
-	while ((rpc = getrpcent())) {
-		if (strcmp(rpc->r_name, name) == 0)
-			return rpc;
-		for (rp = rpc->r_aliases; *rp != NULL; rp++) {
-			if (strcmp(*rp, name) == 0)
-				return rpc;
-		}
-	}
-	endrpcent();
-	return NULL;
-}
-libc_hidden_def(getrpcbyname)
-
-#ifdef __linux__
-static char *firstwhite(char *s)
-{
-	char *s1, *s2;
-
-	s1 = strchr(s, ' ');
-	s2 = strchr(s, '\t');
-	if (s1) {
-		if (s2)
-			return (s1 < s2) ? s1 : s2;
-		else
-			return s1;
-	} else
-		return s2;
-}
-#endif
-
-static struct rpcent *interpret(register struct rpcdata *d)
-{
-	char *p;
-	register char *cp, **q;
-
-	p = d->line;
-	d->line[strlen(p)-1] = '\n';
-	if (*p == '#')
-		return __get_next_rpcent(d);
-	cp = strchr(p, '#');
-	if (cp == NULL) {
-		cp = strchr(p, '\n');
-		if (cp == NULL)
-			return __get_next_rpcent(d);
-	}
-	*cp = '\0';
-#ifdef __linux__
-	if ((cp = firstwhite(p)))
-		*cp++ = 0;
-	else
-		return __get_next_rpcent(d);
-#else
-	cp = strchr(p, ' ');
-	if (cp == NULL) {
-		cp = strchr(p, '\t');
-		if (cp == NULL)
-			return __get_next_rpcent(d);
-	}
-	*cp++ = '\0';
-#endif
-	/* THIS STUFF IS INTERNET SPECIFIC */
-	d->rpc.r_name = d->line;
-	while (*cp == ' ' || *cp == '\t')
-		cp++;
-	d->rpc.r_number = atoi(cp);
-	q = d->rpc.r_aliases = d->rpc_aliases;
-#ifdef __linux__
-	if ((cp = firstwhite(cp)))
-		*cp++ = '\0';
-#else
-	cp = strchr(p, ' ');
-	if (cp != NULL)
-		*cp++ = '\0';
-	else {
-		cp = strchr(p, '\t');
-		if (cp != NULL)
-			*cp++ = '\0';
-	}
-#endif
-	while (cp && *cp) {
-		if (*cp == ' ' || *cp == '\t') {
-			cp++;
-			continue;
-		}
-		if (q < &(d->rpc_aliases[MAXALIASES - 1]))
-			*q++ = cp;
-#ifdef __linux__
-		if ((cp = firstwhite(cp)))
-			*cp++ = '\0';
-#else
-		cp = strchr(p, ' ');
-		if (cp != NULL)
-			*cp++ = '\0';
-		else {
-			cp = strchr(p, '\t');
-			if (cp != NULL)
-				*cp++ = '\0';
-		}
-#endif
-	}
-	*q = NULL;
-	return &d->rpc;
-}
-
-#if defined(__UCLIBC_HAS_REENTRANT_RPC__)
-
-#include <bits/uClibc_mutex.h>
-__UCLIBC_MUTEX_STATIC(mylock, PTHREAD_MUTEX_INITIALIZER);
-
-
-static int __copy_rpcent(struct rpcent *r, struct rpcent *result_buf, char *buffer,
-		size_t buflen, struct rpcent **result)
-{
-	size_t i, s;
-
-	*result = NULL;
-
-	if (!r)
-		return ENOENT;
-
-	/* copy the struct from the shared mem */
-	memset(result_buf, 0x00, sizeof(*result_buf));
-	memset(buffer, 0x00, buflen);
-
-	result_buf->r_number = r->r_number;
-
-	/* copy the aliases ... need to not only copy the alias strings,
-	 * but the array of pointers to the alias strings */
-	i = 0;
-	while (r->r_aliases[i++]) ;
-
-	s = i-- * sizeof(char*);
-	if (buflen < s)
-		goto err_out;
-	result_buf->r_aliases = (char**)buffer;
-	buffer += s;
-	buflen -= s;
-
-	while (i-- > 0) {
-		s = strlen(r->r_aliases[i]) + 1;
-		if (buflen < s)
-			goto err_out;
-		result_buf->r_aliases[i] = buffer;
-		buffer += s;
-		buflen -= s;
-		memcpy(result_buf->r_aliases[i], r->r_aliases[i], s);
-	}
-
-	/* copy the name */
-	i = strlen(r->r_name);
-	if (buflen <= i)
-		goto err_out;
-	result_buf->r_name = buffer;
-	memcpy(result_buf->r_name, r->r_name, i);
-
-	/* that was a hoot eh ? */
-	*result = result_buf;
-
-	return 0;
-err_out:
-	return ERANGE;
-}
-
-int getrpcbynumber_r(int number, struct rpcent *result_buf, char *buffer,
-		size_t buflen, struct rpcent **result)
-{
-	int ret;
-	__UCLIBC_MUTEX_LOCK(mylock);
-	ret = __copy_rpcent(getrpcbynumber(number), result_buf, buffer, buflen, result);
-	__UCLIBC_MUTEX_UNLOCK(mylock);
-	return ret;
-}
-
-int getrpcbyname_r(const char *name, struct rpcent *result_buf, char *buffer,
-		size_t buflen, struct rpcent **result)
-{
-	int ret;
-	__UCLIBC_MUTEX_LOCK(mylock);
-	ret = __copy_rpcent(getrpcbyname(name), result_buf, buffer, buflen, result);
-	__UCLIBC_MUTEX_UNLOCK(mylock);
-	return ret;
-}
-
-int getrpcent_r(struct rpcent *result_buf, char *buffer,
-		size_t buflen, struct rpcent **result)
-{
-	int ret;
-	__UCLIBC_MUTEX_LOCK(mylock);
-	ret = __copy_rpcent(getrpcent(), result_buf, buffer, buflen, result);
-	__UCLIBC_MUTEX_UNLOCK(mylock);
-	return ret;
-}
-
-#endif /* __UCLIBC_HAS_REENTRANT_RPC__ */