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, 726 deletions

diff --git a/libc/inet/rpc/xdr.c b/libc/inet/rpc/xdr.c
deleted file mode 100644
index 1bca29752..000000000
--- a/libc/inet/rpc/xdr.c
+++ /dev/null
@@ -1,726 +0,0 @@
-/* @(#)xdr.c	2.1 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
- */
-#if 0
-static char sccsid[] = "@(#)xdr.c 1.35 87/08/12";
-#endif
-
-/*
- * xdr.c, Generic XDR routines implementation.
- *
- * Copyright (C) 1986, Sun Microsystems, Inc.
- *
- * These are the "generic" xdr routines used to serialize and de-serialize
- * most common data items.  See xdr.h for more info on the interface to
- * xdr.
- */
-
-#include <stdio.h>
-#include <limits.h>
-#include <string.h>
-
-#include <rpc/types.h>
-#include <rpc/xdr.h>
-
-/*
- * constants specific to the xdr "protocol"
- */
-#define XDR_FALSE	((long) 0)
-#define XDR_TRUE	((long) 1)
-#define LASTUNSIGNED	((u_int) 0-1)
-
-/*
- * for unit alignment
- */
-static const char xdr_zero[BYTES_PER_XDR_UNIT] = {0, 0, 0, 0};
-
-/*
- * Free a data structure using XDR
- * Not a filter, but a convenient utility nonetheless
- */
-void
-xdr_free (xdrproc_t proc, char *objp)
-{
-  XDR x;
-
-  x.x_op = XDR_FREE;
-  (*proc) (&x, objp);
-}
-
-/*
- * XDR nothing
- */
-bool_t
-xdr_void (void)
-{
-  return TRUE;
-}
-libc_hidden_def(xdr_void)
-
-/*
- * XDR long integers
- * The definition of xdr_long() is kept for backward
- * compatibility. Instead xdr_int() should be used.
- */
-bool_t
-xdr_long (XDR *xdrs, long *lp)
-{
-  if (xdrs->x_op == XDR_ENCODE
-      && (sizeof (int32_t) == sizeof (long)
-	  || (int32_t) *lp == *lp))
-    return XDR_PUTLONG (xdrs, lp);
-
-  if (xdrs->x_op == XDR_DECODE)
-    return XDR_GETLONG (xdrs, lp);
-
-  if (xdrs->x_op == XDR_FREE)
-    return TRUE;
-
-  return FALSE;
-}
-libc_hidden_def(xdr_long)
-
-/*
- * XDR short integers
- */
-bool_t
-xdr_short (XDR *xdrs, short *sp)
-{
-  long l;
-
-  switch (xdrs->x_op)
-    {
-    case XDR_ENCODE:
-      l = (long) *sp;
-      return XDR_PUTLONG (xdrs, &l);
-
-    case XDR_DECODE:
-      if (!XDR_GETLONG (xdrs, &l))
-	{
-	  return FALSE;
-	}
-      *sp = (short) l;
-      return TRUE;
-
-    case XDR_FREE:
-      return TRUE;
-    }
-  return FALSE;
-}
-libc_hidden_def(xdr_short)
-
-/*
- * XDR integers
- */
-bool_t
-xdr_int (XDR *xdrs, int *ip)
-{
-
-#if INT_MAX < LONG_MAX
-  long l;
-
-  switch (xdrs->x_op)
-    {
-    case XDR_ENCODE:
-      l = (long) *ip;
-      return XDR_PUTLONG (xdrs, &l);
-
-    case XDR_DECODE:
-      if (!XDR_GETLONG (xdrs, &l))
-	{
-	  return FALSE;
-	}
-      *ip = (int) l;
-    case XDR_FREE:
-      return TRUE;
-    }
-  return FALSE;
-#elif INT_MAX == LONG_MAX
-  return xdr_long (xdrs, (long *) ip);
-#elif INT_MAX == SHRT_MAX
-  return xdr_short (xdrs, (short *) ip);
-#else
-#error unexpected integer sizes in xdr_int()
-#endif
-}
-libc_hidden_def(xdr_int)
-
-/*
- * XDR unsigned long integers
- * The definition of xdr_u_long() is kept for backward
- * compatibility. Instead xdr_u_int() should be used.
- */
-bool_t
-xdr_u_long (XDR *xdrs, u_long *ulp)
-{
-  switch (xdrs->x_op)
-    {
-    case XDR_DECODE:
-      {
-	long int tmp;
-
-	if (XDR_GETLONG (xdrs, &tmp) == FALSE)
-	  return FALSE;
-
-	*ulp = (uint32_t) tmp;
-	return TRUE;
-      }
-
-    case XDR_ENCODE:
-      if (sizeof (uint32_t) != sizeof (u_long)
-	  && (uint32_t) *ulp != *ulp)
-	return FALSE;
-
-      return XDR_PUTLONG (xdrs, (long *) ulp);
-
-    case XDR_FREE:
-      return TRUE;
-    }
-  return FALSE;
-}
-libc_hidden_def(xdr_u_long)
-
-/*
- * XDR unsigned integers
- */
-bool_t
-xdr_u_int (XDR *xdrs, u_int *up)
-{
-#if UINT_MAX < ULONG_MAX
-  u_long l;
-
-  switch (xdrs->x_op)
-    {
-    case XDR_ENCODE:
-      l = (u_long) * up;
-      return XDR_PUTLONG (xdrs, (long *) &l);
-
-    case XDR_DECODE:
-      if (!XDR_GETLONG (xdrs, (long *) &l))
-	{
-	  return FALSE;
-	}
-      *up = (u_int) l;
-    case XDR_FREE:
-      return TRUE;
-    }
-  return FALSE;
-#elif UINT_MAX == ULONG_MAX
-  return xdr_u_long (xdrs, (u_long *) up);
-#elif UINT_MAX == USHRT_MAX
-  return xdr_short (xdrs, (short *) up);
-#else
-#error unexpected integer sizes in xdr_u_int()
-#endif
-}
-libc_hidden_def(xdr_u_int)
-
-/*
- * XDR hyper integers
- * same as xdr_u_hyper - open coded to save a proc call!
- */
-bool_t
-xdr_hyper (XDR *xdrs, quad_t *llp)
-{
-  long t1;
-  unsigned long t2;
-
-  if (xdrs->x_op == XDR_ENCODE)
-    {
-      t1 = (long) ((*llp) >> 32);
-      t2 = (long) (*llp);
-      return (XDR_PUTLONG(xdrs, &t1) && XDR_PUTLONG(xdrs, (long *) &t2));
-    }
-
-  if (xdrs->x_op == XDR_DECODE)
-    {
-      if (!XDR_GETLONG(xdrs, &t1) || !XDR_GETLONG(xdrs, (long *) &t2))
-	return FALSE;
-      /* t2 must be unsigned for this to work */
-      *llp = ((quad_t) t1) << 32;
-      *llp |= t2;
-      return TRUE;
-    }
-
-  if (xdrs->x_op == XDR_FREE)
-    return TRUE;
-
-  return FALSE;
-}
-libc_hidden_def(xdr_hyper)
-
-
-/*
- * XDR hyper integers
- * same as xdr_hyper - open coded to save a proc call!
- */
-bool_t
-xdr_u_hyper (XDR *xdrs, u_quad_t *ullp)
-{
-  unsigned long t1;
-  unsigned long t2;
-
-  if (xdrs->x_op == XDR_ENCODE)
-    {
-      t1 = (unsigned long) ((*ullp) >> 32);
-      t2 = (unsigned long) (*ullp);
-      return (XDR_PUTLONG(xdrs, (long *) &t1) && XDR_PUTLONG(xdrs, (long *) &t2));
-    }
-
-  if (xdrs->x_op == XDR_DECODE)
-    {
-      if (!XDR_GETLONG(xdrs, (long *) &t1) || !XDR_GETLONG(xdrs, (long *) &t2))
-	return FALSE;
-      *ullp = ((u_quad_t) t1) << 32;
-      *ullp |= t2;
-      return TRUE;
-    }
-
-  if (xdrs->x_op == XDR_FREE)
-    return TRUE;
-
-  return FALSE;
-}
-libc_hidden_def(xdr_u_hyper)
-
-bool_t
-xdr_longlong_t (XDR *xdrs, quad_t *llp)
-{
-  return xdr_hyper (xdrs, llp);
-}
-
-bool_t
-xdr_u_longlong_t (XDR *xdrs, u_quad_t *ullp)
-{
-  return xdr_u_hyper (xdrs, ullp);
-}
-
-/*
- * XDR unsigned short integers
- */
-bool_t
-xdr_u_short (XDR *xdrs, u_short *usp)
-{
-  u_long l;
-
-  switch (xdrs->x_op)
-    {
-    case XDR_ENCODE:
-      l = (u_long) * usp;
-      return XDR_PUTLONG (xdrs, (long *) &l);
-
-    case XDR_DECODE:
-      if (!XDR_GETLONG (xdrs, (long *) &l))
-	{
-	  return FALSE;
-	}
-      *usp = (u_short) l;
-      return TRUE;
-
-    case XDR_FREE:
-      return TRUE;
-    }
-  return FALSE;
-}
-libc_hidden_def(xdr_u_short)
-
-
-/*
- * XDR a char
- */
-bool_t
-xdr_char (XDR *xdrs, char *cp)
-{
-  int i;
-
-  i = (*cp);
-  if (!xdr_int (xdrs, &i))
-    {
-      return FALSE;
-    }
-  *cp = i;
-  return TRUE;
-}
-
-/*
- * XDR an unsigned char
- */
-bool_t
-xdr_u_char (XDR *xdrs, u_char *cp)
-{
-  u_int u;
-
-  u = (*cp);
-  if (!xdr_u_int (xdrs, &u))
-    {
-      return FALSE;
-    }
-  *cp = u;
-  return TRUE;
-}
-
-/*
- * XDR booleans
- */
-bool_t
-xdr_bool (XDR *xdrs, bool_t *bp)
-{
-  long lb;
-
-  switch (xdrs->x_op)
-    {
-    case XDR_ENCODE:
-      lb = *bp ? XDR_TRUE : XDR_FALSE;
-      return XDR_PUTLONG (xdrs, &lb);
-
-    case XDR_DECODE:
-      if (!XDR_GETLONG (xdrs, &lb))
-	{
-	  return FALSE;
-	}
-      *bp = (lb == XDR_FALSE) ? FALSE : TRUE;
-      return TRUE;
-
-    case XDR_FREE:
-      return TRUE;
-    }
-  return FALSE;
-}
-libc_hidden_def(xdr_bool)
-
-/*
- * XDR enumerations
- */
-bool_t
-xdr_enum (XDR *xdrs, enum_t *ep)
-{
-  enum sizecheck
-    {
-      SIZEVAL
-    };				/* used to find the size of an enum */
-
-  /*
-   * enums are treated as ints
-   */
-  if (sizeof (enum sizecheck) == 4)
-    {
-#if INT_MAX < LONG_MAX
-      long l;
-
-      switch (xdrs->x_op)
-	{
-	case XDR_ENCODE:
-	  l = *ep;
-	  return XDR_PUTLONG (xdrs, &l);
-
-	case XDR_DECODE:
-	  if (!XDR_GETLONG (xdrs, &l))
-	    {
-	      return FALSE;
-	    }
-	  *ep = l;
-	case XDR_FREE:
-	  return TRUE;
-
-	}
-      return FALSE;
-#else
-      return xdr_long (xdrs, (long *) ep);
-#endif
-    }
-  else if (sizeof (enum sizecheck) == sizeof (short))
-    {
-      return xdr_short (xdrs, (short *) ep);
-    }
-  else
-    {
-      return FALSE;
-    }
-}
-libc_hidden_def(xdr_enum)
-
-/*
- * XDR opaque data
- * Allows the specification of a fixed size sequence of opaque bytes.
- * cp points to the opaque object and cnt gives the byte length.
- */
-bool_t
-xdr_opaque (XDR *xdrs, caddr_t cp, u_int cnt)
-{
-  u_int rndup;
-  static char crud[BYTES_PER_XDR_UNIT];
-
-  /*
-   * if no data we are done
-   */
-  if (cnt == 0)
-    return TRUE;
-
-  /*
-   * round byte count to full xdr units
-   */
-  rndup = cnt % BYTES_PER_XDR_UNIT;
-  if (rndup > 0)
-    rndup = BYTES_PER_XDR_UNIT - rndup;
-
-  switch (xdrs->x_op)
-    {
-    case XDR_DECODE:
-      if (!XDR_GETBYTES (xdrs, cp, cnt))
-	{
-	  return FALSE;
-	}
-      if (rndup == 0)
-	return TRUE;
-      return XDR_GETBYTES (xdrs, (caddr_t)crud, rndup);
-
-    case XDR_ENCODE:
-      if (!XDR_PUTBYTES (xdrs, cp, cnt))
-	{
-	  return FALSE;
-	}
-      if (rndup == 0)
-	return TRUE;
-      return XDR_PUTBYTES (xdrs, xdr_zero, rndup);
-
-    case XDR_FREE:
-      return TRUE;
-    }
-  return FALSE;
-}
-libc_hidden_def(xdr_opaque)
-
-/*
- * XDR counted bytes
- * *cpp is a pointer to the bytes, *sizep is the count.
- * If *cpp is NULL maxsize bytes are allocated
- */
-bool_t
-xdr_bytes (XDR *xdrs, char **cpp, u_int *sizep, u_int maxsize)
-{
-  char *sp = *cpp;	/* sp is the actual string pointer */
-  u_int nodesize;
-
-  /*
-   * first deal with the length since xdr bytes are counted
-   */
-  if (!xdr_u_int (xdrs, sizep))
-    {
-      return FALSE;
-    }
-  nodesize = *sizep;
-  if ((nodesize > maxsize) && (xdrs->x_op != XDR_FREE))
-    {
-      return FALSE;
-    }
-
-  /*
-   * now deal with the actual bytes
-   */
-  switch (xdrs->x_op)
-    {
-    case XDR_DECODE:
-      if (nodesize == 0)
-	{
-	  return TRUE;
-	}
-      if (sp == NULL)
-	{
-	  *cpp = sp = (char *) mem_alloc (nodesize);
-	}
-      if (sp == NULL)
-	{
-	  (void) fputs ("xdr_bytes: out of memory\n", stderr);
-	  return FALSE;
-	}
-      /* fall into ... */
-
-    case XDR_ENCODE:
-      return xdr_opaque (xdrs, sp, nodesize);
-
-    case XDR_FREE:
-      if (sp != NULL)
-	{
-	  mem_free (sp, nodesize);
-	  *cpp = NULL;
-	}
-      return TRUE;
-    }
-  return FALSE;
-}
-libc_hidden_def(xdr_bytes)
-
-/*
- * Implemented here due to commonality of the object.
- */
-bool_t
-xdr_netobj (XDR *xdrs, struct netobj *np)
-{
-
-  return xdr_bytes (xdrs, &np->n_bytes, &np->n_len, MAX_NETOBJ_SZ);
-}
-
-/*
- * XDR a discriminated union
- * Support routine for discriminated unions.
- * You create an array of xdrdiscrim structures, terminated with
- * an entry with a null procedure pointer.  The routine gets
- * the discriminant value and then searches the array of xdrdiscrims
- * looking for that value.  It calls the procedure given in the xdrdiscrim
- * to handle the discriminant.  If there is no specific routine a default
- * routine may be called.
- * If there is no specific or default routine an error is returned.
- */
-bool_t
-xdr_union (XDR *xdrs, enum_t *dscmp, char *unp, const struct xdr_discrim *choices, xdrproc_t dfault)
-{
-  enum_t dscm;
-
-  /*
-   * we deal with the discriminator;  it's an enum
-   */
-  if (!xdr_enum (xdrs, dscmp))
-    {
-      return FALSE;
-    }
-  dscm = *dscmp;
-
-  /*
-   * search choices for a value that matches the discriminator.
-   * if we find one, execute the xdr routine for that value.
-   */
-  for (; choices->proc != NULL_xdrproc_t; choices++)
-    {
-      if (choices->value == dscm)
-	return (*(choices->proc)) (xdrs, unp, LASTUNSIGNED);
-    }
-
-  /*
-   * no match - execute the default xdr routine if there is one
-   */
-  return ((dfault == NULL_xdrproc_t) ? FALSE :
-	  (*dfault) (xdrs, unp, LASTUNSIGNED));
-}
-libc_hidden_def(xdr_union)
-
-/*
- * Non-portable xdr primitives.
- * Care should be taken when moving these routines to new architectures.
- */
-
-
-/*
- * XDR null terminated ASCII strings
- * xdr_string deals with "C strings" - arrays of bytes that are
- * terminated by a NULL character.  The parameter cpp references a
- * pointer to storage; If the pointer is null, then the necessary
- * storage is allocated.  The last parameter is the max allowed length
- * of the string as specified by a protocol.
- */
-bool_t
-xdr_string (XDR *xdrs, char **cpp, u_int maxsize)
-{
-  char *sp = *cpp;	/* sp is the actual string pointer */
-  u_int size;
-  u_int nodesize;
-
-  /*
-   * first deal with the length since xdr strings are counted-strings
-   */
-  switch (xdrs->x_op)
-    {
-    case XDR_FREE:
-      if (sp == NULL)
-	{
-	  return TRUE;		/* already free */
-	}
-      /* fall through... */
-    case XDR_ENCODE:
-      if (sp == NULL)
-	return FALSE;
-      size = strlen (sp);
-      break;
-    case XDR_DECODE:
-      break;
-    }
-  if (!xdr_u_int (xdrs, &size))
-    {
-      return FALSE;
-    }
-  if (size > maxsize)
-    {
-      return FALSE;
-    }
-  nodesize = size + 1;
-
-  /*
-   * now deal with the actual bytes
-   */
-  switch (xdrs->x_op)
-    {
-    case XDR_DECODE:
-      if (nodesize == 0)
-	{
-	  return TRUE;
-	}
-      if (sp == NULL)
-	*cpp = sp = (char *) mem_alloc (nodesize);
-      if (sp == NULL)
-	{
-	  (void) fputs ("xdr_string: out of memory\n", stderr);
-	  return FALSE;
-	}
-      sp[size] = 0;
-      /* fall into ... */
-
-    case XDR_ENCODE:
-      return xdr_opaque (xdrs, sp, size);
-
-    case XDR_FREE:
-      mem_free (sp, nodesize);
-      *cpp = NULL;
-      return TRUE;
-    }
-  return FALSE;
-}
-libc_hidden_def(xdr_string)
-
-/*
- * Wrapper for xdr_string that can be called directly from
- * routines like clnt_call
- */
-bool_t
-xdr_wrapstring (XDR *xdrs, char **cpp)
-{
-  if (xdr_string (xdrs, cpp, LASTUNSIGNED))
-    {
-      return TRUE;
-    }
-  return FALSE;
-}