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, 323 deletions

diff --git a/libc/inet/rpc/ruserpass.c b/libc/inet/rpc/ruserpass.c
deleted file mode 100644
index 4f3060b22..000000000
--- a/libc/inet/rpc/ruserpass.c
+++ /dev/null
@@ -1,323 +0,0 @@
-/*
- * Copyright (c) 1985, 1993, 1994
- *	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/stat.h>
-
-#include <ctype.h>
-#include <err.h>
-#include <errno.h>
-#include <netdb.h>
-#include <stdio.h>
-#ifdef __UCLIBC_HAS_THREADS__
-# include <stdio_ext.h>
-#endif
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-/* #include "ftp_var.h" */
-
-static	int token (void);
-static	FILE *cfile;
-
-#define	DEFAULT	1
-#define	LOGIN	2
-#define	PASSWD	3
-#define	ACCOUNT 4
-#define MACDEF  5
-#define	ID	10
-#define	MACHINE	11
-
-static char tokval[100];
-
-static const char tokstr[] =
-{
-#define TOK_DEFAULT_IDX	0
-  "default\0"
-#define TOK_LOGIN_IDX	(TOK_DEFAULT_IDX + sizeof "default")
-  "login\0"
-#define TOK_PASSWORD_IDX (TOK_LOGIN_IDX + sizeof "login")
-  "password\0"
-#define TOK_PASSWD_IDX	(TOK_PASSWORD_IDX + sizeof "password")
-  "passwd\0"
-#define TOK_ACCOUNT_IDX	(TOK_PASSWD_IDX + sizeof "passwd")
-  "account\0"
-#define TOK_MACHINE_IDX	(TOK_ACCOUNT_IDX + sizeof "account")
-  "machine\0"
-#define TOK_MACDEF_IDX	(TOK_MACHINE_IDX + sizeof "machine")
-  "macdef"
-};
-
-static const struct toktab {
-	int tokstr_off;
-	int tval;
-} toktab[]= {
-	{ TOK_DEFAULT_IDX,	DEFAULT },
-	{ TOK_LOGIN_IDX,	LOGIN },
-	{ TOK_PASSWORD_IDX,	PASSWD },
-	{ TOK_PASSWD_IDX,	PASSWD },
-	{ TOK_ACCOUNT_IDX,	ACCOUNT },
-	{ TOK_MACHINE_IDX,	MACHINE },
-	{ TOK_MACDEF_IDX,	MACDEF }
-};
-
-
-/* ruserpass - remote password check.
-   This function also exists in glibc but is undocumented */
-int ruserpass(const char *host, const char **aname, const char **apass)
-{
-	char *hdir, *buf, *tmp;
-	char myname[1024], *mydomain;
-	int t, usedefault = 0;
-	struct stat stb;
-
-	/* Give up when running a setuid or setgid app. */
-	if ((getuid() != geteuid()) || getgid() != getegid())
-	    return -1;
-	hdir = getenv("HOME");
-	if (hdir == NULL) {
-		/* If we can't get HOME, fail instead of trying ".",
-		   which is no improvement. */
-	  	return -1;
-	}
-
-	buf = alloca (strlen(hdir) + 8);
-	strcpy(buf, hdir);
-	strcat(buf, "/.netrc");
-	cfile = fopen(buf, "r");
-	if (cfile == NULL) {
-		if (errno != ENOENT)
-			printf("%s", buf);
-		return (0);
-	}
-	/* No threads use this stream.  */
-#ifdef __UCLIBC_HAS_THREADS__
-	__fsetlocking (cfile, FSETLOCKING_BYCALLER);
-#endif
-	if (gethostname(myname, sizeof(myname)) < 0)
-		myname[0] = '\0';
-	mydomain = strchr(myname, '.');
-	if (mydomain==NULL) {
-	    mydomain=myname + strlen(myname);
-	}
-next:
-	while ((t = token())) switch(t) {
-
-	case DEFAULT:
-		usedefault = 1;
-		/* FALL THROUGH */
-
-	case MACHINE:
-		if (!usedefault) {
-			if (token() != ID)
-				continue;
-			/*
-			 * Allow match either for user's input host name
-			 * or official hostname.  Also allow match of
-			 * incompletely-specified host in local domain.
-			 */
-			if (strcasecmp(host, tokval) == 0)
-				goto match;
-			if ((tmp = strchr(host, '.')) != NULL &&
-			    strcasecmp(tmp, mydomain) == 0 &&
-			    strncasecmp(host, tokval, tmp - host) == 0 &&
-			    tokval[tmp - host] == '\0')
-				goto match;
-			continue;
-		}
-	match:
-		while ((t = token()) && t != MACHINE && t != DEFAULT) switch(t) {
-
-		case LOGIN:
-			if (token()) {
-				if (*aname == 0) {
-				  char *newp;
-				  newp = malloc((unsigned) strlen(tokval) + 1);
-				  if (newp == NULL)
-				    {
-				      printf("out of memory");
-				      goto bad;
-				    }
-				  *aname = strcpy(newp, tokval);
-				} else {
-					if (strcmp(*aname, tokval))
-						goto next;
-				}
-			}
-			break;
-		case PASSWD:
-			if (strcmp(*aname, "anonymous") &&
-			    fstat(fileno(cfile), &stb) >= 0 &&
-			    (stb.st_mode & 077) != 0) {
-	printf("Error: .netrc file is readable by others.");
-	printf("Remove password or make file unreadable by others.");
-				goto bad;
-			}
-			if (token() && *apass == 0) {
-				char *newp;
-				newp = malloc((unsigned) strlen(tokval) + 1);
-				if (newp == NULL)
-				  {
-				    printf("out of memory");
-				    goto bad;
-				  }
-				*apass = strcpy(newp, tokval);
-			}
-			break;
-		case ACCOUNT:
-#if 0
-			if (fstat(fileno(cfile), &stb) >= 0
-			    && (stb.st_mode & 077) != 0) {
-	printf("Error: .netrc file is readable by others.");
-	printf("Remove account or make file unreadable by others.");
-				goto bad;
-			}
-			if (token() && *aacct == 0) {
-				*aacct = malloc((unsigned) strlen(tokval) + 1);
-				(void) strcpy(*aacct, tokval);
-			}
-#endif
-			break;
-		case MACDEF:
-#if 0
-			if (proxy) {
-				(void) fclose(cfile);
-				return (0);
-			}
-			while ((c=getc_unlocked(cfile)) != EOF && c == ' '
-			       || c == '\t');
-			if (c == EOF || c == '\n') {
-				printf("Missing macdef name argument.\n");
-				goto bad;
-			}
-			if (macnum == 16) {
-				printf("Limit of 16 macros have already been defined\n");
-				goto bad;
-			}
-			tmp = macros[macnum].mac_name;
-			*tmp++ = c;
-			for (i=0; i < 8 && (c=getc_unlocked(cfile)) != EOF &&
-			    !isspace(c); ++i) {
-				*tmp++ = c;
-			}
-			if (c == EOF) {
-				printf("Macro definition missing null line terminator.\n");
-				goto bad;
-			}
-			*tmp = '\0';
-			if (c != '\n') {
-				while ((c=getc_unlocked(cfile)) != EOF
-				       && c != '\n');
-			}
-			if (c == EOF) {
-				printf("Macro definition missing null line terminator.\n");
-				goto bad;
-			}
-			if (macnum == 0) {
-				macros[macnum].mac_start = macbuf;
-			}
-			else {
-				macros[macnum].mac_start = macros[macnum-1].mac_end + 1;
-			}
-			tmp = macros[macnum].mac_start;
-			while (tmp != macbuf + 4096) {
-				if ((c=getc_unlocked(cfile)) == EOF) {
-				printf("Macro definition missing null line terminator.\n");
-					goto bad;
-				}
-				*tmp = c;
-				if (*tmp == '\n') {
-					if (*(tmp-1) == '\0') {
-					   macros[macnum++].mac_end = tmp - 1;
-					   break;
-					}
-					*tmp = '\0';
-				}
-				tmp++;
-			}
-			if (tmp == macbuf + 4096) {
-				printf("4K macro buffer exceeded\n");
-				goto bad;
-			}
-#endif
-			break;
-		default:
-			printf("Unknown .netrc keyword %s", tokval);
-			break;
-		}
-		goto done;
-	}
-done:
-	(void) fclose(cfile);
-	return (0);
-bad:
-	(void) fclose(cfile);
-	return (-1);
-}
-libc_hidden_def(ruserpass)
-
-static int
-token(void)
-{
-	char *cp;
-	int c;
-	int i;
-
-	if (feof_unlocked(cfile) || ferror_unlocked(cfile))
-		return (0);
-	while ((c = getc_unlocked(cfile)) != EOF &&
-	    (c == '\n' || c == '\t' || c == ' ' || c == ','))
-		continue;
-	if (c == EOF)
-		return (0);
-	cp = tokval;
-	if (c == '"') {
-		while ((c = getc_unlocked(cfile)) != EOF && c != '"') {
-			if (c == '\\')
-				c = getc_unlocked(cfile);
-			*cp++ = c;
-		}
-	} else {
-		*cp++ = c;
-		while ((c = getc_unlocked(cfile)) != EOF
-		    && c != '\n' && c != '\t' && c != ' ' && c != ',') {
-			if (c == '\\')
-				c = getc_unlocked(cfile);
-			*cp++ = c;
-		}
-	}
-	*cp = 0;
-	if (tokval[0] == 0)
-		return (0);
-	for (i = 0; i < (int) (sizeof (toktab) / sizeof (toktab[0])); ++i)
-		if (!strcmp(&tokstr[toktab[i].tokstr_off], tokval))
-			return toktab[i].tval;
-	return (ID);
-}