Re-backport all the rpc stuff from glibc 2.2.5. This allows us to make this

junk (and I do mean that ;-) thread safe without undue pain.  Adds 12k worth to
the code size I'm afraid, but since I never use NFS and therefore never include
this stuff, I guess thats acceptable.  I still need to enable the multi-threaded
bits...
 -Erik

1 files changed, 135 insertions, 105 deletions

diff --git a/libc/inet/rpc/xdr_float.c b/libc/inet/rpc/xdr_float.c
index 623682e0c..5b3802b56 100644
--- a/libc/inet/rpc/xdr_float.c
+++ b/libc/inet/rpc/xdr_float.c
@@ -6,32 +6,33 @@
  * 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
  */
-#define __FORCE_GLIBC
-#include <features.h>
+#if !defined(lint) && defined(SCCSIDS)
+static char sccsid[] = "@(#)xdr_float.c 1.12 87/08/11 Copyr 1984 Sun Micro";
+#endif
 
 /*
- * xdr_float.c, Generic XDR routines impelmentation.
+ * xdr_float.c, Generic XDR routines implementation.
  *
  * Copyright (C) 1984, Sun Microsystems, Inc.
  *
@@ -40,7 +41,12 @@
  * xdr.
  */
 
+#define __FORCE_GLIBC
+#define _GNU_SOURCE
+#include <features.h>
+
 #include <stdio.h>
+#include <endian.h>
 
 #include <rpc/types.h>
 #include <rpc/xdr.h>
@@ -50,26 +56,23 @@
  * This routine works on Suns (Sky / 68000's) and Vaxen.
  */
 
-#ifdef __linux__
-/* cheat big time */
-#define sparc
-#endif
+#define LSW	(__FLOAT_WORD_ORDER == __BIG_ENDIAN)
 
 #ifdef vax
 
 /* What IEEE single precision floating point looks like on a Vax */
-struct ieee_single {
-	unsigned int mantissa:23;
-	unsigned int exp:8;
-	unsigned int sign:1;
+struct	ieee_single {
+	unsigned int	mantissa: 23;
+	unsigned int	exp     : 8;
+	unsigned int	sign    : 1;
 };
 
 /* Vax single precision floating point */
-struct vax_single {
-	unsigned int mantissa1:7;
-	unsigned int exp:8;
-	unsigned int sign:1;
-	unsigned int mantissa2:16;
+struct	vax_single {
+	unsigned int	mantissa1 : 7;
+	unsigned int	exp       : 8;
+	unsigned int	sign      : 1;
+	unsigned int	mantissa2 : 16;
 };
 
 #define VAX_SNG_BIAS	0x81
@@ -79,22 +82,19 @@ static struct sgl_limits {
 	struct vax_single s;
 	struct ieee_single ieee;
 } sgl_limits[2] = {
-	{ {
-	0x7f, 0xff, 0x0, 0xffff},	/* Max Vax */
-	{
-	0x0, 0xff, 0x0}},			/* Max IEEE */
-	{ {
-	0x0, 0x0, 0x0, 0x0},		/* Min Vax */
-	{
-	0x0, 0x0, 0x0}}				/* Min IEEE */
+	{{ 0x7f, 0xff, 0x0, 0xffff },	/* Max Vax */
+	{ 0x0, 0xff, 0x0 }},		/* Max IEEE */
+	{{ 0x0, 0x0, 0x0, 0x0 },	/* Min Vax */
+	{ 0x0, 0x0, 0x0 }}		/* Min IEEE */
 };
-#endif							/* vax */
+#endif /* vax */
 
-bool_t xdr_float(xdrs, fp)
-register XDR *xdrs;
-register float *fp;
+bool_t
+xdr_float(xdrs, fp)
+     XDR *xdrs;
+     float *fp;
 {
-#if !defined(mc68000) && !defined(sparc)
+#ifdef vax
 	struct ieee_single is;
 	struct vax_single vs, *vsp;
 	struct sgl_limits *lim;
@@ -103,14 +103,11 @@ register float *fp;
 	switch (xdrs->x_op) {
 
 	case XDR_ENCODE:
-#if defined(mc68000) || defined(sparc)
-		return (XDR_PUTLONG(xdrs, (long *) fp));
-#else
-		vs = *((struct vax_single *) fp);
+#ifdef vax
+		vs = *((struct vax_single *)fp);
 		for (i = 0, lim = sgl_limits;
-
-			 i < sizeof(sgl_limits) / sizeof(struct sgl_limits);
-			 i++, lim++) {
+			i < sizeof(sgl_limits)/sizeof(struct sgl_limits);
+			i++, lim++) {
 			if ((vs.mantissa2 == lim->s.mantissa2) &&
 				(vs.exp == lim->s.exp) &&
 				(vs.mantissa1 == lim->s.mantissa1)) {
@@ -120,22 +117,27 @@ register float *fp;
 		}
 		is.exp = vs.exp - VAX_SNG_BIAS + IEEE_SNG_BIAS;
 		is.mantissa = (vs.mantissa1 << 16) | vs.mantissa2;
-	  shipit:
+	shipit:
 		is.sign = vs.sign;
-		return (XDR_PUTLONG(xdrs, (long *) &is));
+		return (XDR_PUTLONG(xdrs, (long *)&is));
+#else
+		if (sizeof(float) == sizeof(long))
+			return (XDR_PUTLONG(xdrs, (long *)fp));
+		else if (sizeof(float) == sizeof(int)) {
+			long tmp = *(int *)fp;
+			return (XDR_PUTLONG(xdrs, &tmp));
+		}
+		break;
 #endif
 
 	case XDR_DECODE:
-#if defined(mc68000) || defined(sparc)
-		return (XDR_GETLONG(xdrs, (long *) fp));
-#else
-		vsp = (struct vax_single *) fp;
-		if (!XDR_GETLONG(xdrs, (long *) &is))
+#ifdef vax
+		vsp = (struct vax_single *)fp;
+		if (!XDR_GETLONG(xdrs, (long *)&is))
 			return (FALSE);
 		for (i = 0, lim = sgl_limits;
-
-			 i < sizeof(sgl_limits) / sizeof(struct sgl_limits);
-			 i++, lim++) {
+			i < sizeof(sgl_limits)/sizeof(struct sgl_limits);
+			i++, lim++) {
 			if ((is.exp == lim->ieee.exp) &&
 				(is.mantissa == lim->ieee.mantissa)) {
 				*vsp = lim->s;
@@ -145,9 +147,20 @@ register float *fp;
 		vsp->exp = is.exp - IEEE_SNG_BIAS + VAX_SNG_BIAS;
 		vsp->mantissa2 = is.mantissa;
 		vsp->mantissa1 = (is.mantissa >> 16);
-	  doneit:
+	doneit:
 		vsp->sign = is.sign;
 		return (TRUE);
+#else
+		if (sizeof(float) == sizeof(long))
+			return (XDR_GETLONG(xdrs, (long *)fp));
+		else if (sizeof(float) == sizeof(int)) {
+			long tmp;
+			if (XDR_GETLONG(xdrs, &tmp)) {
+				*(int *)fp = tmp;
+				return (TRUE);
+			}
+		}
+		break;
 #endif
 
 	case XDR_FREE:
@@ -162,21 +175,21 @@ register float *fp;
 
 #ifdef vax
 /* What IEEE double precision floating point looks like on a Vax */
-struct ieee_double {
-	unsigned int mantissa1:20;
-	unsigned int exp:11;
-	unsigned int sign:1;
-	unsigned int mantissa2:32;
+struct	ieee_double {
+	unsigned int	mantissa1 : 20;
+	unsigned int	exp       : 11;
+	unsigned int	sign      : 1;
+	unsigned int	mantissa2 : 32;
 };
 
 /* Vax double precision floating point */
-struct vax_double {
-	unsigned int mantissa1:7;
-	unsigned int exp:8;
-	unsigned int sign:1;
-	unsigned int mantissa2:16;
-	unsigned int mantissa3:16;
-	unsigned int mantissa4:16;
+struct  vax_double {
+	unsigned int	mantissa1 : 7;
+	unsigned int	exp       : 8;
+	unsigned int	sign      : 1;
+	unsigned int	mantissa2 : 16;
+	unsigned int	mantissa3 : 16;
+	unsigned int	mantissa4 : 16;
 };
 
 #define VAX_DBL_BIAS	0x81
@@ -184,31 +197,26 @@ struct vax_double {
 #define MASK(nbits)	((1 << nbits) - 1)
 
 static struct dbl_limits {
-	struct vax_double d;
-	struct ieee_double ieee;
+	struct	vax_double d;
+	struct	ieee_double ieee;
 } dbl_limits[2] = {
-	{ {
-	0x7f, 0xff, 0x0, 0xffff, 0xffff, 0xffff},	/* Max Vax */
-	{
-	0x0, 0x7ff, 0x0, 0x0}},		/* Max IEEE */
-	{ {
-	0x0, 0x0, 0x0, 0x0, 0x0, 0x0},	/* Min Vax */
-	{
-	0x0, 0x0, 0x0, 0x0}}		/* Min IEEE */
+	{{ 0x7f, 0xff, 0x0, 0xffff, 0xffff, 0xffff },	/* Max Vax */
+	{ 0x0, 0x7ff, 0x0, 0x0 }},			/* Max IEEE */
+	{{ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},		/* Min Vax */
+	{ 0x0, 0x0, 0x0, 0x0 }}				/* Min IEEE */
 };
 
-#endif							/* vax */
+#endif /* vax */
 
 
-bool_t xdr_double(xdrs, dp)
-register XDR *xdrs;
-double *dp;
+bool_t
+xdr_double(xdrs, dp)
+     XDR *xdrs;
+     double *dp;
 {
-	register long *lp;
-
-#if !defined(mc68000) && !defined(sparc)
-	struct ieee_double id;
-	struct vax_double vd;
+#ifdef vax
+	struct	ieee_double id;
+	struct	vax_double vd;
 	register struct dbl_limits *lim;
 	int i;
 #endif
@@ -216,14 +224,11 @@ double *dp;
 	switch (xdrs->x_op) {
 
 	case XDR_ENCODE:
-#if defined(mc68000) || defined(sparc)
-		lp = (long *) dp;
-#else
-		vd = *((struct vax_double *) dp);
+#ifdef vax
+		vd = *((struct vax_double *)dp);
 		for (i = 0, lim = dbl_limits;
-
-			 i < sizeof(dbl_limits) / sizeof(struct dbl_limits);
-			 i++, lim++) {
+			i < sizeof(dbl_limits)/sizeof(struct dbl_limits);
+			i++, lim++) {
 			if ((vd.mantissa4 == lim->d.mantissa4) &&
 				(vd.mantissa3 == lim->d.mantissa3) &&
 				(vd.mantissa2 == lim->d.mantissa2) &&
@@ -236,25 +241,34 @@ double *dp;
 		id.exp = vd.exp - VAX_DBL_BIAS + IEEE_DBL_BIAS;
 		id.mantissa1 = (vd.mantissa1 << 13) | (vd.mantissa2 >> 3);
 		id.mantissa2 = ((vd.mantissa2 & MASK(3)) << 29) |
-			(vd.mantissa3 << 13) | ((vd.mantissa4 >> 3) & MASK(13));
-	  shipit:
+				(vd.mantissa3 << 13) |
+				((vd.mantissa4 >> 3) & MASK(13));
+	shipit:
 		id.sign = vd.sign;
-		lp = (long *) &id;
+		dp = (double *)&id;
 #endif
-		return (XDR_PUTLONG(xdrs, lp++) && XDR_PUTLONG(xdrs, lp));
+		if (2*sizeof(long) == sizeof(double)) {
+			long *lp = (long *)dp;
+			return (XDR_PUTLONG(xdrs, lp+!LSW) &&
+				XDR_PUTLONG(xdrs, lp+LSW));
+		} else if (2*sizeof(int) == sizeof(double)) {
+			int *ip = (int *)dp;
+			long tmp[2];
+			tmp[0] = ip[!LSW];
+			tmp[1] = ip[LSW];
+			return (XDR_PUTLONG(xdrs, tmp) &&
+				XDR_PUTLONG(xdrs, tmp+1));
+		}
+		break;
 
 	case XDR_DECODE:
-#if defined(mc68000) || defined(sparc)
-		lp = (long *) dp;
-		return (XDR_GETLONG(xdrs, lp++) && XDR_GETLONG(xdrs, lp));
-#else
-		lp = (long *) &id;
+#ifdef vax
+		lp = (long *)&id;
 		if (!XDR_GETLONG(xdrs, lp++) || !XDR_GETLONG(xdrs, lp))
 			return (FALSE);
 		for (i = 0, lim = dbl_limits;
-
-			 i < sizeof(dbl_limits) / sizeof(struct dbl_limits);
-			 i++, lim++) {
+			i < sizeof(dbl_limits)/sizeof(struct dbl_limits);
+			i++, lim++) {
 			if ((id.mantissa2 == lim->ieee.mantissa2) &&
 				(id.mantissa1 == lim->ieee.mantissa1) &&
 				(id.exp == lim->ieee.exp)) {
@@ -265,13 +279,29 @@ double *dp;
 		vd.exp = id.exp - IEEE_DBL_BIAS + VAX_DBL_BIAS;
 		vd.mantissa1 = (id.mantissa1 >> 13);
 		vd.mantissa2 = ((id.mantissa1 & MASK(13)) << 3) |
-			(id.mantissa2 >> 29);
+				(id.mantissa2 >> 29);
 		vd.mantissa3 = (id.mantissa2 >> 13);
 		vd.mantissa4 = (id.mantissa2 << 3);
-	  doneit:
+	doneit:
 		vd.sign = id.sign;
-		*dp = *((double *) &vd);
+		*dp = *((double *)&vd);
 		return (TRUE);
+#else
+		if (2*sizeof(long) == sizeof(double)) {
+			long *lp = (long *)dp;
+			return (XDR_GETLONG(xdrs, lp+!LSW) &&
+				XDR_GETLONG(xdrs, lp+LSW));
+		} else if (2*sizeof(int) == sizeof(double)) {
+			int *ip = (int *)dp;
+			long tmp[2];
+			if (XDR_GETLONG(xdrs, tmp+!LSW) &&
+			    XDR_GETLONG(xdrs, tmp+LSW)) {
+				ip[0] = tmp[0];
+				ip[1] = tmp[1];
+				return (TRUE);
+			}
+		}
+		break;
 #endif
 
 	case XDR_FREE: