diff options
Diffstat (limited to 'libc/inet/rpc/xdr.c')
-rw-r--r-- | libc/inet/rpc/xdr.c | 726 |
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; -} |