diff options
Diffstat (limited to 'sunrpc/pmap_prot2.c')
| -rw-r--r-- | sunrpc/pmap_prot2.c | 94 |
1 files changed, 48 insertions, 46 deletions
diff --git a/sunrpc/pmap_prot2.c b/sunrpc/pmap_prot2.c index e2a8214..6cb7c5e 100644 --- a/sunrpc/pmap_prot2.c +++ b/sunrpc/pmap_prot2.c @@ -6,23 +6,23 @@ * 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 @@ -43,34 +43,34 @@ static char sccsid[] = "@(#)pmap_prot2.c 1.3 87/08/11 Copyr 1984 Sun Micro"; #include <rpc/pmap_prot.h> -/* +/* * What is going on with linked lists? (!) * First recall the link list declaration from pmap_prot.h: * * struct pmaplist { - * struct pmap pml_map; - * struct pmaplist *pml_map; + * struct pmap pml_map; + * struct pmaplist *pml_map; * }; * - * Compare that declaration with a corresponding xdr declaration that + * Compare that declaration with a corresponding xdr declaration that * is (a) pointer-less, and (b) recursive: * * typedef union switch (bool_t) { - * - * case TRUE: struct { - * struct pmap; - * pmaplist_t foo; - * }; * - * case FALSE: struct {}; + * case TRUE: struct { + * struct pmap; + * pmaplist_t foo; + * }; + * + * case FALSE: struct {}; * } pmaplist_t; * * Notice that the xdr declaration has no nxt pointer while * the C declaration has no bool_t variable. The bool_t can be * interpreted as ``more data follows me''; if FALSE then nothing * follows this bool_t; if TRUE then the bool_t is followed by - * an actual struct pmap, and then (recursively) by the - * xdr union, pamplist_t. + * an actual struct pmap, and then (recursively) by the + * xdr union, pamplist_t. * * This could be implemented via the xdr_union primitive, though this * would cause a one recursive call per element in the list. Rather than do @@ -82,35 +82,37 @@ static char sccsid[] = "@(#)pmap_prot2.c 1.3 87/08/11 Copyr 1984 Sun Micro"; * this sounds like a job for xdr_reference! */ bool_t -xdr_pmaplist(xdrs, rp) - register XDR *xdrs; - register struct pmaplist **rp; +xdr_pmaplist (xdrs, rp) + XDR *xdrs; + struct pmaplist **rp; { - /* - * more_elements is pre-computed in case the direction is - * XDR_ENCODE or XDR_FREE. more_elements is overwritten by - * xdr_bool when the direction is XDR_DECODE. - */ - bool_t more_elements; - register int freeing = (xdrs->x_op == XDR_FREE); - register struct pmaplist **next; + /* + * more_elements is pre-computed in case the direction is + * XDR_ENCODE or XDR_FREE. more_elements is overwritten by + * xdr_bool when the direction is XDR_DECODE. + */ + bool_t more_elements; + int freeing = (xdrs->x_op == XDR_FREE); + struct pmaplist **next = NULL; - while (TRUE) { - more_elements = (bool_t)(*rp != NULL); - if (! xdr_bool(xdrs, &more_elements)) - return (FALSE); - if (! more_elements) - return (TRUE); /* we are done */ - /* - * the unfortunate side effect of non-recursion is that in - * the case of freeing we must remember the next object - * before we free the current object ... - */ - if (freeing) - next = &((*rp)->pml_next); - if (! xdr_reference(xdrs, (caddr_t *)rp, - (u_int)sizeof(struct pmaplist), xdr_pmap)) - return (FALSE); - rp = (freeing) ? next : &((*rp)->pml_next); - } + while (TRUE) + { + more_elements = (bool_t) (*rp != NULL); + if (!xdr_bool (xdrs, &more_elements)) + return FALSE; + if (!more_elements) + return TRUE; /* we are done */ + /* + * the unfortunate side effect of non-recursion is that in + * the case of freeing we must remember the next object + * before we free the current object ... + */ + if (freeing) + next = &((*rp)->pml_next); + if (!xdr_reference (xdrs, (caddr_t *) rp, + (u_int) sizeof (struct pmaplist), + (xdrproc_t) xdr_pmap)) + return FALSE; + rp = freeing ? next : &((*rp)->pml_next); + } } |