-/* @(#)xdr_rec.c 2.2 88/08/01 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
* 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 !defined(lint) && defined(SCCSIDS)
-static char sccsid[] = "@(#)xdr_rec.c 1.21 87/08/11 Copyr 1984 Sun Micro";
-#endif
/*
* xdr_rec.c, Implements TCP/IP based XDR streams with a "record marking"
* and the tcp transport level. A record is composed on one or more
* record fragments. A record fragment is a thirty-two bit header followed
* by n bytes of data, where n is contained in the header. The header
- * is represented as a htonl(u_long). Thegh order bit encodes
+ * is represented as a htonl(u_long). The high order bit encodes
* whether or not the fragment is the last fragment of the record
- * (1 => fragment is last, 0 => more fragments to follow.
+ * (1 => fragment is last, 0 => more fragments to follow.
* The other 31 bits encode the byte length of the fragment.
*/
+#define __FORCE_GLIBC
+#define _GNU_SOURCE
+#include <features.h>
+
+
#include <stdio.h>
-#include <rpc/types.h>
-#include <rpc/xdr.h>
-#include <netinet/in.h>
-
-extern long lseek();
-
-static u_int fix_buf_size();
-
-static bool_t xdrrec_getlong();
-static bool_t xdrrec_putlong();
-static bool_t xdrrec_getbytes();
-static bool_t xdrrec_putbytes();
-static u_int xdrrec_getpos();
-static bool_t xdrrec_setpos();
-static long *xdrrec_inline();
-static void xdrrec_destroy();
-
-static struct xdr_ops xdrrec_ops = {
- xdrrec_getlong,
- xdrrec_putlong,
- xdrrec_getbytes,
- xdrrec_putbytes,
- xdrrec_getpos,
- xdrrec_setpos,
- xdrrec_inline,
- xdrrec_destroy
+#include <string.h>
+#include <unistd.h>
+#include <rpc/rpc.h>
+
+#ifdef USE_IN_LIBIO
+# include <wchar.h>
+# include <libio/iolibio.h>
+# define fputs(s, f) _IO_fputs (s, f)
+libc_hidden_proto(fwprintf)
+#endif
+
+libc_hidden_proto(memcpy)
+libc_hidden_proto(fputs)
+libc_hidden_proto(lseek)
+
+static bool_t xdrrec_getlong (XDR *, long *);
+static bool_t xdrrec_putlong (XDR *, const long *);
+static bool_t xdrrec_getbytes (XDR *, caddr_t, u_int);
+static bool_t xdrrec_putbytes (XDR *, const char *, u_int);
+static u_int xdrrec_getpos (const XDR *);
+static bool_t xdrrec_setpos (XDR *, u_int);
+static int32_t *xdrrec_inline (XDR *, int);
+static void xdrrec_destroy (XDR *);
+static bool_t xdrrec_getint32 (XDR *, int32_t *);
+static bool_t xdrrec_putint32 (XDR *, const int32_t *);
+
+static const struct xdr_ops xdrrec_ops = {
+ xdrrec_getlong,
+ xdrrec_putlong,
+ xdrrec_getbytes,
+ xdrrec_putbytes,
+ xdrrec_getpos,
+ xdrrec_setpos,
+ xdrrec_inline,
+ xdrrec_destroy,
+ xdrrec_getint32,
+ xdrrec_putint32
};
/*
* meet the needs of xdr and rpc based on tcp.
*/
-#define LAST_FRAG ((u_long)(1 << 31))
-
-typedef struct rec_strm {
- caddr_t tcp_handle;
- caddr_t the_buffer;
- /*
- * out-goung bits
- */
- int (*writeit) ();
- caddr_t out_base; /* output buffer (points to frag header) */
- caddr_t out_finger; /* next output position */
- caddr_t out_boundry; /* data cannot up to this address */
- u_long *frag_header; /* beginning of curren fragment */
- bool_t frag_sent; /* true if buffer sent in middle of record */
- /*
- * in-coming bits
- */
- int (*readit) ();
- u_long in_size; /* fixed size of the input buffer */
- caddr_t in_base;
- caddr_t in_finger; /* location of next byte to be had */
- caddr_t in_boundry; /* can read up to this location */
- long fbtbc; /* fragment bytes to be consumed */
- bool_t last_frag;
- u_int sendsize;
- u_int recvsize;
-} RECSTREAM;
-
+#define LAST_FRAG (1UL << 31)
+
+typedef struct rec_strm
+ {
+ caddr_t tcp_handle;
+ caddr_t the_buffer;
+ /*
+ * out-going bits
+ */
+ int (*writeit) (char *, char *, int);
+ caddr_t out_base; /* output buffer (points to frag header) */
+ caddr_t out_finger; /* next output position */
+ caddr_t out_boundry; /* data cannot up to this address */
+ u_int32_t *frag_header; /* beginning of curren fragment */
+ bool_t frag_sent; /* true if buffer sent in middle of record */
+ /*
+ * in-coming bits
+ */
+ int (*readit) (char *, char *, int);
+ u_long in_size; /* fixed size of the input buffer */
+ caddr_t in_base;
+ caddr_t in_finger; /* location of next byte to be had */
+ caddr_t in_boundry; /* can read up to this location */
+ long fbtbc; /* fragment bytes to be consumed */
+ bool_t last_frag;
+ u_int sendsize;
+ u_int recvsize;
+ }
+RECSTREAM;
+
+static u_int fix_buf_size (u_int) internal_function;
+static bool_t skip_input_bytes (RECSTREAM *, long) internal_function;
+static bool_t flush_out (RECSTREAM *, bool_t) internal_function;
+static bool_t set_input_fragment (RECSTREAM *) internal_function;
+static bool_t get_input_bytes (RECSTREAM *, caddr_t, int) internal_function;
/*
* Create an xdr handle for xdrrec
* write respectively. They are like the system
* calls expect that they take an opaque handle rather than an fd.
*/
-void xdrrec_create(xdrs, sendsize, recvsize, tcp_handle, readit, writeit)
-register XDR *xdrs;
-register u_int sendsize;
-register u_int recvsize;
-caddr_t tcp_handle;
-int (*readit) (); /* like read, but pass it a tcp_handle, not sock */
-int (*writeit) (); /* like write, but pass it a tcp_handle, not sock */
+libc_hidden_proto(xdrrec_create)
+void
+xdrrec_create (XDR *xdrs, u_int sendsize,
+ u_int recvsize, caddr_t tcp_handle,
+ int (*readit) (char *, char *, int),
+ int (*writeit) (char *, char *, int))
{
- register RECSTREAM *rstrm = (RECSTREAM *) mem_alloc(sizeof(RECSTREAM));
-
- if (rstrm == NULL) {
- (void) fprintf(stderr, "xdrrec_create: out of memory\n");
- /*
- * This is bad. Should rework xdrrec_create to
- * return a handle, and in this case return NULL
- */
- return;
- }
- /*
- * adjust sizes and allocate buffer quad byte aligned
- */
- rstrm->sendsize = sendsize = fix_buf_size(sendsize);
- rstrm->recvsize = recvsize = fix_buf_size(recvsize);
- rstrm->the_buffer =
- mem_alloc(sendsize + recvsize + BYTES_PER_XDR_UNIT);
- if (rstrm->the_buffer == NULL) {
- (void) fprintf(stderr, "xdrrec_create: out of memory\n");
- return;
- }
- for (rstrm->out_base = rstrm->the_buffer;
- (u_int) rstrm->out_base % BYTES_PER_XDR_UNIT != 0;
- rstrm->out_base++);
- rstrm->in_base = rstrm->out_base + sendsize;
- /*
- * now the rest ...
- */
- xdrs->x_ops = &xdrrec_ops;
- xdrs->x_private = (caddr_t) rstrm;
- rstrm->tcp_handle = tcp_handle;
- rstrm->readit = readit;
- rstrm->writeit = writeit;
- rstrm->out_finger = rstrm->out_boundry = rstrm->out_base;
- rstrm->frag_header = (u_long *) rstrm->out_base;
- rstrm->out_finger += sizeof(u_long);
- rstrm->out_boundry += sendsize;
- rstrm->frag_sent = FALSE;
- rstrm->in_size = recvsize;
- rstrm->in_boundry = rstrm->in_base;
- rstrm->in_finger = (rstrm->in_boundry += recvsize);
- rstrm->fbtbc = 0;
- rstrm->last_frag = TRUE;
+ RECSTREAM *rstrm = (RECSTREAM *) mem_alloc (sizeof (RECSTREAM));
+ caddr_t tmp;
+ char *buf;
+
+ sendsize = fix_buf_size (sendsize);
+ recvsize = fix_buf_size (recvsize);
+ buf = mem_alloc (sendsize + recvsize + BYTES_PER_XDR_UNIT);
+
+ if (rstrm == NULL || buf == NULL)
+ {
+#ifdef USE_IN_LIBIO
+ if (_IO_fwide (stderr, 0) > 0)
+ (void) fwprintf (stderr, L"%s", _("xdrrec_create: out of memory\n"));
+ else
+#endif
+ (void) fputs (_("xdrrec_create: out of memory\n"), stderr);
+ mem_free (rstrm, sizeof (RECSTREAM));
+ mem_free (buf, sendsize + recvsize + BYTES_PER_XDR_UNIT);
+ /*
+ * This is bad. Should rework xdrrec_create to
+ * return a handle, and in this case return NULL
+ */
+ return;
+ }
+ /*
+ * adjust sizes and allocate buffer quad byte aligned
+ */
+ rstrm->sendsize = sendsize;
+ rstrm->recvsize = recvsize;
+ rstrm->the_buffer = buf;
+ tmp = rstrm->the_buffer;
+ if ((size_t)tmp % BYTES_PER_XDR_UNIT)
+ tmp += BYTES_PER_XDR_UNIT - (size_t)tmp % BYTES_PER_XDR_UNIT;
+ rstrm->out_base = tmp;
+ rstrm->in_base = tmp + sendsize;
+ /*
+ * now the rest ...
+ */
+ /* We have to add the const since the `struct xdr_ops' in `struct XDR'
+ is not `const'. */
+ xdrs->x_ops = (struct xdr_ops *) &xdrrec_ops;
+ xdrs->x_private = (caddr_t) rstrm;
+ rstrm->tcp_handle = tcp_handle;
+ rstrm->readit = readit;
+ rstrm->writeit = writeit;
+ rstrm->out_finger = rstrm->out_boundry = rstrm->out_base;
+ rstrm->frag_header = (u_int32_t *) rstrm->out_base;
+ rstrm->out_finger += 4;
+ rstrm->out_boundry += sendsize;
+ rstrm->frag_sent = FALSE;
+ rstrm->in_size = recvsize;
+ rstrm->in_boundry = rstrm->in_base;
+ rstrm->in_finger = (rstrm->in_boundry += recvsize);
+ rstrm->fbtbc = 0;
+ rstrm->last_frag = TRUE;
}
+libc_hidden_def(xdrrec_create)
/*
- * The reoutines defined below are the xdr ops which will go into the
+ * The routines defined below are the xdr ops which will go into the
* xdr handle filled in by xdrrec_create.
*/
-static bool_t xdrrec_getlong(xdrs, lp)
-XDR *xdrs;
-long *lp;
+static bool_t
+xdrrec_getlong (XDR *xdrs, long *lp)
{
- register RECSTREAM *rstrm = (RECSTREAM *) (xdrs->x_private);
- register long *buflp = (long *) (rstrm->in_finger);
- long mylong;
-
- /* first try the inline, fast case */
- if ((rstrm->fbtbc >= sizeof(long)) &&
- (((int) rstrm->in_boundry - (int) buflp) >= sizeof(long))) {
- *lp = (long) ntohl((u_long) (*buflp));
- rstrm->fbtbc -= sizeof(long);
- rstrm->in_finger += sizeof(long);
- } else {
- if (!xdrrec_getbytes(xdrs, (caddr_t) & mylong, sizeof(long)))
- return (FALSE);
-
- *lp = (long) ntohl((u_long) mylong);
- }
- return (TRUE);
+ RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
+ int32_t *buflp = (int32_t *) rstrm->in_finger;
+ int32_t mylong;
+
+ /* first try the inline, fast case */
+ if (rstrm->fbtbc >= BYTES_PER_XDR_UNIT &&
+ rstrm->in_boundry - (char *) buflp >= BYTES_PER_XDR_UNIT)
+ {
+ *lp = (int32_t) ntohl (*buflp);
+ rstrm->fbtbc -= BYTES_PER_XDR_UNIT;
+ rstrm->in_finger += BYTES_PER_XDR_UNIT;
+ }
+ else
+ {
+ if (!xdrrec_getbytes (xdrs, (caddr_t) & mylong,
+ BYTES_PER_XDR_UNIT))
+ return FALSE;
+ *lp = (int32_t) ntohl (mylong);
+ }
+ return TRUE;
}
-static bool_t xdrrec_putlong(xdrs, lp)
-XDR *xdrs;
-long *lp;
+static bool_t
+xdrrec_putlong (XDR *xdrs, const long *lp)
{
- register RECSTREAM *rstrm = (RECSTREAM *) (xdrs->x_private);
- register long *dest_lp = ((long *) (rstrm->out_finger));
-
- if ((rstrm->out_finger += sizeof(long)) > rstrm->out_boundry) {
- /*
- * this case should almost never happen so the code is
- * inefficient
- */
- rstrm->out_finger -= sizeof(long);
-
- rstrm->frag_sent = TRUE;
- if (!flush_out(rstrm, FALSE))
- return (FALSE);
- dest_lp = ((long *) (rstrm->out_finger));
- rstrm->out_finger += sizeof(long);
- }
- *dest_lp = (long) htonl((u_long) (*lp));
- return (TRUE);
+ RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
+ int32_t *dest_lp = (int32_t *) rstrm->out_finger;
+
+ if ((rstrm->out_finger += BYTES_PER_XDR_UNIT) > rstrm->out_boundry)
+ {
+ /*
+ * this case should almost never happen so the code is
+ * inefficient
+ */
+ rstrm->out_finger -= BYTES_PER_XDR_UNIT;
+ rstrm->frag_sent = TRUE;
+ if (!flush_out (rstrm, FALSE))
+ return FALSE;
+ dest_lp = (int32_t *) rstrm->out_finger;
+ rstrm->out_finger += BYTES_PER_XDR_UNIT;
+ }
+ *dest_lp = htonl (*lp);
+ return TRUE;
}
-static bool_t
-/* must manage buffers, fragments, and records */
-xdrrec_getbytes(xdrs, addr, len)
-XDR *xdrs;
-register caddr_t addr;
-register u_int len;
+static bool_t /* must manage buffers, fragments, and records */
+xdrrec_getbytes (XDR *xdrs, caddr_t addr, u_int len)
{
- register RECSTREAM *rstrm = (RECSTREAM *) (xdrs->x_private);
- register int current;
-
- while (len > 0) {
- current = rstrm->fbtbc;
- if (current == 0) {
- if (rstrm->last_frag)
- return (FALSE);
- if (!set_input_fragment(rstrm))
- return (FALSE);
- continue;
- }
- current = (len < current) ? len : current;
- if (!get_input_bytes(rstrm, addr, current))
- return (FALSE);
- addr += current;
- rstrm->fbtbc -= current;
- len -= current;
+ RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
+ u_int current;
+
+ while (len > 0)
+ {
+ current = rstrm->fbtbc;
+ if (current == 0)
+ {
+ if (rstrm->last_frag)
+ return FALSE;
+ if (!set_input_fragment (rstrm))
+ return FALSE;
+ continue;
}
- return (TRUE);
+ current = (len < current) ? len : current;
+ if (!get_input_bytes (rstrm, addr, current))
+ return FALSE;
+ addr += current;
+ rstrm->fbtbc -= current;
+ len -= current;
+ }
+ return TRUE;
}
-static bool_t xdrrec_putbytes(xdrs, addr, len)
-XDR *xdrs;
-register caddr_t addr;
-register u_int len;
+static bool_t
+xdrrec_putbytes (XDR *xdrs, const char *addr, u_int len)
{
- register RECSTREAM *rstrm = (RECSTREAM *) (xdrs->x_private);
- register int current;
-
- while (len > 0) {
- current = (u_int) rstrm->out_boundry - (u_int) rstrm->out_finger;
- current = (len < current) ? len : current;
- bcopy(addr, rstrm->out_finger, current);
- rstrm->out_finger += current;
- addr += current;
- len -= current;
- if (rstrm->out_finger == rstrm->out_boundry) {
- rstrm->frag_sent = TRUE;
- if (!flush_out(rstrm, FALSE))
- return (FALSE);
- }
+ RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
+ u_int current;
+
+ while (len > 0)
+ {
+ current = rstrm->out_boundry - rstrm->out_finger;
+ current = (len < current) ? len : current;
+ memcpy (rstrm->out_finger, addr, current);
+ rstrm->out_finger += current;
+ addr += current;
+ len -= current;
+ if (rstrm->out_finger == rstrm->out_boundry && len > 0)
+ {
+ rstrm->frag_sent = TRUE;
+ if (!flush_out (rstrm, FALSE))
+ return FALSE;
}
- return (TRUE);
+ }
+ return TRUE;
}
-static u_int xdrrec_getpos(xdrs)
-register XDR *xdrs;
+static u_int
+xdrrec_getpos (const XDR *xdrs)
{
- register RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
- register long pos;
-
- pos = lseek((int) rstrm->tcp_handle, (long) 0, 1);
- if (pos != -1)
- switch (xdrs->x_op) {
-
- case XDR_ENCODE:
- pos += rstrm->out_finger - rstrm->out_base;
- break;
-
- case XDR_DECODE:
- pos -= rstrm->in_boundry - rstrm->in_finger;
- break;
-
- default:
- pos = (u_int) - 1;
- break;
- }
- return ((u_int) pos);
+ RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
+ long pos;
+
+ pos = lseek ((int) (long) rstrm->tcp_handle, (long) 0, 1);
+ if (pos != -1)
+ switch (xdrs->x_op)
+ {
+
+ case XDR_ENCODE:
+ pos += rstrm->out_finger - rstrm->out_base;
+ break;
+
+ case XDR_DECODE:
+ pos -= rstrm->in_boundry - rstrm->in_finger;
+ break;
+
+ default:
+ pos = (u_int) - 1;
+ break;
+ }
+ return (u_int) pos;
}
-static bool_t xdrrec_setpos(xdrs, pos)
-register XDR *xdrs;
-u_int pos;
+static bool_t
+xdrrec_setpos (XDR *xdrs, u_int pos)
{
- register RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
- u_int currpos = xdrrec_getpos(xdrs);
- int delta = currpos - pos;
- caddr_t newpos;
-
- if ((int) currpos != -1)
- switch (xdrs->x_op) {
-
- case XDR_ENCODE:
- newpos = rstrm->out_finger - delta;
- if ((newpos > (caddr_t) (rstrm->frag_header)) &&
- (newpos < rstrm->out_boundry)) {
- rstrm->out_finger = newpos;
- return (TRUE);
- }
- break;
-
- case XDR_DECODE:
- newpos = rstrm->in_finger - delta;
- if ((delta < (int) (rstrm->fbtbc)) &&
- (newpos <= rstrm->in_boundry) &&
- (newpos >= rstrm->in_base)) {
- rstrm->in_finger = newpos;
- rstrm->fbtbc -= delta;
- return (TRUE);
- }
- break;
- }
- return (FALSE);
+ RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
+ u_int currpos = xdrrec_getpos (xdrs);
+ int delta = currpos - pos;
+ caddr_t newpos;
+
+ if ((int) currpos != -1)
+ switch (xdrs->x_op)
+ {
+
+ case XDR_ENCODE:
+ newpos = rstrm->out_finger - delta;
+ if (newpos > (caddr_t) rstrm->frag_header &&
+ newpos < rstrm->out_boundry)
+ {
+ rstrm->out_finger = newpos;
+ return TRUE;
+ }
+ break;
+
+ case XDR_DECODE:
+ newpos = rstrm->in_finger - delta;
+ if ((delta < (int) (rstrm->fbtbc)) &&
+ (newpos <= rstrm->in_boundry) &&
+ (newpos >= rstrm->in_base))
+ {
+ rstrm->in_finger = newpos;
+ rstrm->fbtbc -= delta;
+ return TRUE;
+ }
+ break;
+
+ default:
+ break;
+ }
+ return FALSE;
}
-static long *xdrrec_inline(xdrs, len)
-register XDR *xdrs;
-int len;
+static int32_t *
+xdrrec_inline (XDR *xdrs, int len)
{
- register RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
- long *buf = NULL;
-
- switch (xdrs->x_op) {
-
- case XDR_ENCODE:
- if ((rstrm->out_finger + len) <= rstrm->out_boundry) {
- buf = (long *) rstrm->out_finger;
- rstrm->out_finger += len;
- }
- break;
-
- case XDR_DECODE:
- if ((len <= rstrm->fbtbc) &&
- ((rstrm->in_finger + len) <= rstrm->in_boundry)) {
- buf = (long *) rstrm->in_finger;
- rstrm->fbtbc -= len;
- rstrm->in_finger += len;
- }
- break;
+ RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
+ int32_t *buf = NULL;
+
+ switch (xdrs->x_op)
+ {
+
+ case XDR_ENCODE:
+ if ((rstrm->out_finger + len) <= rstrm->out_boundry)
+ {
+ buf = (int32_t *) rstrm->out_finger;
+ rstrm->out_finger += len;
+ }
+ break;
+
+ case XDR_DECODE:
+ if ((len <= rstrm->fbtbc) &&
+ ((rstrm->in_finger + len) <= rstrm->in_boundry))
+ {
+ buf = (int32_t *) rstrm->in_finger;
+ rstrm->fbtbc -= len;
+ rstrm->in_finger += len;
}
- return (buf);
+ break;
+
+ default:
+ break;
+ }
+ return buf;
}
-static void xdrrec_destroy(xdrs)
-register XDR *xdrs;
+static void
+xdrrec_destroy (XDR *xdrs)
{
- register RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
+ RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
- mem_free(rstrm->the_buffer,
- rstrm->sendsize + rstrm->recvsize + BYTES_PER_XDR_UNIT);
- mem_free((caddr_t) rstrm, sizeof(RECSTREAM));
+ mem_free (rstrm->the_buffer,
+ rstrm->sendsize + rstrm->recvsize + BYTES_PER_XDR_UNIT);
+ mem_free ((caddr_t) rstrm, sizeof (RECSTREAM));
}
+static bool_t
+xdrrec_getint32 (XDR *xdrs, int32_t *ip)
+{
+ RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
+ int32_t *bufip = (int32_t *) rstrm->in_finger;
+ int32_t mylong;
+
+ /* first try the inline, fast case */
+ if (rstrm->fbtbc >= BYTES_PER_XDR_UNIT &&
+ rstrm->in_boundry - (char *) bufip >= BYTES_PER_XDR_UNIT)
+ {
+ *ip = ntohl (*bufip);
+ rstrm->fbtbc -= BYTES_PER_XDR_UNIT;
+ rstrm->in_finger += BYTES_PER_XDR_UNIT;
+ }
+ else
+ {
+ if (!xdrrec_getbytes (xdrs, (caddr_t) &mylong,
+ BYTES_PER_XDR_UNIT))
+ return FALSE;
+ *ip = ntohl (mylong);
+ }
+ return TRUE;
+}
+
+static bool_t
+xdrrec_putint32 (XDR *xdrs, const int32_t *ip)
+{
+ RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
+ int32_t *dest_ip = (int32_t *) rstrm->out_finger;
+
+ if ((rstrm->out_finger += BYTES_PER_XDR_UNIT) > rstrm->out_boundry)
+ {
+ /*
+ * this case should almost never happen so the code is
+ * inefficient
+ */
+ rstrm->out_finger -= BYTES_PER_XDR_UNIT;
+ rstrm->frag_sent = TRUE;
+ if (!flush_out (rstrm, FALSE))
+ return FALSE;
+ dest_ip = (int32_t *) rstrm->out_finger;
+ rstrm->out_finger += BYTES_PER_XDR_UNIT;
+ }
+ *dest_ip = htonl (*ip);
+ return TRUE;
+}
/*
* Exported routines to manage xdr records
* Before reading (deserializing from the stream, one should always call
* this procedure to guarantee proper record alignment.
*/
-bool_t xdrrec_skiprecord(xdrs)
-XDR *xdrs;
+libc_hidden_proto(xdrrec_skiprecord)
+bool_t
+xdrrec_skiprecord (XDR *xdrs)
{
- register RECSTREAM *rstrm = (RECSTREAM *) (xdrs->x_private);
-
- while (rstrm->fbtbc > 0 || (!rstrm->last_frag)) {
- if (!skip_input_bytes(rstrm, rstrm->fbtbc))
- return (FALSE);
- rstrm->fbtbc = 0;
- if ((!rstrm->last_frag) && (!set_input_fragment(rstrm)))
- return (FALSE);
- }
- rstrm->last_frag = FALSE;
- return (TRUE);
+ RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
+
+ while (rstrm->fbtbc > 0 || (!rstrm->last_frag))
+ {
+ if (!skip_input_bytes (rstrm, rstrm->fbtbc))
+ return FALSE;
+ rstrm->fbtbc = 0;
+ if ((!rstrm->last_frag) && (!set_input_fragment (rstrm)))
+ return FALSE;
+ }
+ rstrm->last_frag = FALSE;
+ return TRUE;
}
+libc_hidden_def(xdrrec_skiprecord)
/*
- * Look ahead fuction.
- * Returns TRUE iff there is no more input in the buffer
+ * Lookahead function.
+ * Returns TRUE iff there is no more input in the buffer
* after consuming the rest of the current record.
*/
-bool_t xdrrec_eof(xdrs)
-XDR *xdrs;
+libc_hidden_proto(xdrrec_eof)
+bool_t
+xdrrec_eof (XDR *xdrs)
{
- register RECSTREAM *rstrm = (RECSTREAM *) (xdrs->x_private);
-
- while (rstrm->fbtbc > 0 || (!rstrm->last_frag)) {
- if (!skip_input_bytes(rstrm, rstrm->fbtbc))
- return (TRUE);
- rstrm->fbtbc = 0;
- if ((!rstrm->last_frag) && (!set_input_fragment(rstrm)))
- return (TRUE);
- }
- if (rstrm->in_finger == rstrm->in_boundry)
- return (TRUE);
- return (FALSE);
+ RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
+
+ while (rstrm->fbtbc > 0 || (!rstrm->last_frag))
+ {
+ if (!skip_input_bytes (rstrm, rstrm->fbtbc))
+ return TRUE;
+ rstrm->fbtbc = 0;
+ if ((!rstrm->last_frag) && (!set_input_fragment (rstrm)))
+ return TRUE;
+ }
+ if (rstrm->in_finger == rstrm->in_boundry)
+ return TRUE;
+ return FALSE;
}
+libc_hidden_def(xdrrec_eof)
/*
* The client must tell the package when an end-of-record has occurred.
- * The second paraemters tells whether the record should be flushed to the
- * (output) tcp stream. (This let's the package support batched or
- * pipelined procedure calls.) TRUE => immmediate flush to tcp connection.
+ * The second parameter tells whether the record should be flushed to the
+ * (output) tcp stream. (This lets the package support batched or
+ * pipelined procedure calls.) TRUE => immediate flush to tcp connection.
*/
-bool_t xdrrec_endofrecord(xdrs, sendnow)
-XDR *xdrs;
-bool_t sendnow;
+libc_hidden_proto(xdrrec_endofrecord)
+bool_t
+xdrrec_endofrecord (XDR *xdrs, bool_t sendnow)
{
- register RECSTREAM *rstrm = (RECSTREAM *) (xdrs->x_private);
- register u_long len; /* fragment length */
-
- if (sendnow || rstrm->frag_sent ||
- ((u_long) rstrm->out_finger + sizeof(u_long) >=
- (u_long) rstrm->out_boundry)) {
- rstrm->frag_sent = FALSE;
- return (flush_out(rstrm, TRUE));
- }
- len = (u_long) (rstrm->out_finger) - (u_long) (rstrm->frag_header) -
- sizeof(u_long);
- *(rstrm->frag_header) = htonl((u_long) len | LAST_FRAG);
- rstrm->frag_header = (u_long *) rstrm->out_finger;
- rstrm->out_finger += sizeof(u_long);
- return (TRUE);
+ RECSTREAM *rstrm = (RECSTREAM *) xdrs->x_private;
+ u_long len; /* fragment length */
+
+ if (sendnow || rstrm->frag_sent
+ || rstrm->out_finger + BYTES_PER_XDR_UNIT >= rstrm->out_boundry)
+ {
+ rstrm->frag_sent = FALSE;
+ return flush_out (rstrm, TRUE);
+ }
+ len = (rstrm->out_finger - (char *) rstrm->frag_header
+ - BYTES_PER_XDR_UNIT);
+ *rstrm->frag_header = htonl ((u_long) len | LAST_FRAG);
+ rstrm->frag_header = (u_int32_t *) rstrm->out_finger;
+ rstrm->out_finger += BYTES_PER_XDR_UNIT;
+ return TRUE;
}
-
+libc_hidden_def(xdrrec_endofrecord)
/*
* Internal useful routines
*/
-static bool_t flush_out(rstrm, eor)
-register RECSTREAM *rstrm;
-bool_t eor;
+static bool_t
+internal_function
+flush_out (RECSTREAM *rstrm, bool_t eor)
{
- register u_long eormask = (eor == TRUE) ? LAST_FRAG : 0;
- register u_long len = (u_long) (rstrm->out_finger) -
- (u_long) (rstrm->frag_header) - sizeof(u_long);
-
- *(rstrm->frag_header) = htonl(len | eormask);
- len = (u_long) (rstrm->out_finger) - (u_long) (rstrm->out_base);
- if ((*(rstrm->writeit)) (rstrm->tcp_handle, rstrm->out_base, (int) len)
- != (int) len)
- return (FALSE);
- rstrm->frag_header = (u_long *) rstrm->out_base;
- rstrm->out_finger = (caddr_t) rstrm->out_base + sizeof(u_long);
- return (TRUE);
+ u_long eormask = (eor == TRUE) ? LAST_FRAG : 0;
+ u_long len = (rstrm->out_finger - (char *) rstrm->frag_header
+ - BYTES_PER_XDR_UNIT);
+
+ *rstrm->frag_header = htonl (len | eormask);
+ len = rstrm->out_finger - rstrm->out_base;
+ if ((*(rstrm->writeit)) (rstrm->tcp_handle, rstrm->out_base, (int) len)
+ != (int) len)
+ return FALSE;
+ rstrm->frag_header = (u_int32_t *) rstrm->out_base;
+ rstrm->out_finger = (caddr_t) rstrm->out_base + BYTES_PER_XDR_UNIT;
+ return TRUE;
}
-static bool_t
-/* knows nothing about records! Only about input buffers */
-fill_input_buf(rstrm)
-register RECSTREAM *rstrm;
+static bool_t /* knows nothing about records! Only about input buffers */
+fill_input_buf (RECSTREAM *rstrm)
{
- register caddr_t where;
- u_int i;
- register int len;
-
- where = rstrm->in_base;
- i = (u_int) rstrm->in_boundry % BYTES_PER_XDR_UNIT;
- where += i;
- len = rstrm->in_size - i;
- if ((len = (*(rstrm->readit)) (rstrm->tcp_handle, where, len)) == -1)
- return (FALSE);
- rstrm->in_finger = where;
- where += len;
- rstrm->in_boundry = where;
- return (TRUE);
+ caddr_t where;
+ size_t i;
+ int len;
+
+ where = rstrm->in_base;
+ i = (size_t) rstrm->in_boundry % BYTES_PER_XDR_UNIT;
+ where += i;
+ len = rstrm->in_size - i;
+ if ((len = (*(rstrm->readit)) (rstrm->tcp_handle, where, len)) == -1)
+ return FALSE;
+ rstrm->in_finger = where;
+ where += len;
+ rstrm->in_boundry = where;
+ return TRUE;
}
-static bool_t
-/* knows nothing about records! Only about input buffers */
-get_input_bytes(rstrm, addr, len)
-register RECSTREAM *rstrm;
-register caddr_t addr;
-register int len;
+static bool_t /* knows nothing about records! Only about input buffers */
+internal_function
+get_input_bytes (RECSTREAM *rstrm, caddr_t addr, int len)
{
- register int current;
-
- while (len > 0) {
- current = (int) rstrm->in_boundry - (int) rstrm->in_finger;
- if (current == 0) {
- if (!fill_input_buf(rstrm))
- return (FALSE);
- continue;
- }
- current = (len < current) ? len : current;
- bcopy(rstrm->in_finger, addr, current);
- rstrm->in_finger += current;
- addr += current;
- len -= current;
+ int current;
+
+ while (len > 0)
+ {
+ current = rstrm->in_boundry - rstrm->in_finger;
+ if (current == 0)
+ {
+ if (!fill_input_buf (rstrm))
+ return FALSE;
+ continue;
}
- return (TRUE);
+ current = (len < current) ? len : current;
+ memcpy (addr, rstrm->in_finger, current);
+ rstrm->in_finger += current;
+ addr += current;
+ len -= current;
+ }
+ return TRUE;
}
-static bool_t
-/* next two bytes of the input stream are treated as a header */
-set_input_fragment(rstrm)
-register RECSTREAM *rstrm;
+static bool_t /* next two bytes of the input stream are treated as a header */
+internal_function
+set_input_fragment (RECSTREAM *rstrm)
{
- u_long header;
-
- if (!get_input_bytes(rstrm, (caddr_t) & header, sizeof(header)))
- return (FALSE);
- header = (long) ntohl(header);
- rstrm->last_frag = ((header & LAST_FRAG) == 0) ? FALSE : TRUE;
- rstrm->fbtbc = header & (~LAST_FRAG);
- return (TRUE);
+ uint32_t header;
+
+ if (! get_input_bytes (rstrm, (caddr_t)&header, BYTES_PER_XDR_UNIT))
+ return FALSE;
+ header = ntohl (header);
+ rstrm->last_frag = ((header & LAST_FRAG) == 0) ? FALSE : TRUE;
+ /*
+ * Sanity check. Try not to accept wildly incorrect fragment
+ * sizes. Unfortunately, only a size of zero can be identified as
+ * 'wildely incorrect', and this only, if it is not the last
+ * fragment of a message. Ridiculously large fragment sizes may look
+ * wrong, but we don't have any way to be certain that they aren't
+ * what the client actually intended to send us. Many existing RPC
+ * implementations may sent a fragment of size zero as the last
+ * fragment of a message.
+ */
+ if (header == 0)
+ return FALSE;
+ rstrm->fbtbc = header & ~LAST_FRAG;
+ return TRUE;
}
-static bool_t
-/* consumes input bytes; knows nothing about records! */
-skip_input_bytes(rstrm, cnt)
-register RECSTREAM *rstrm;
-long cnt;
+static bool_t /* consumes input bytes; knows nothing about records! */
+internal_function
+skip_input_bytes (RECSTREAM *rstrm, long cnt)
{
- register int current;
-
- while (cnt > 0) {
- current = (int) rstrm->in_boundry - (int) rstrm->in_finger;
- if (current == 0) {
- if (!fill_input_buf(rstrm))
- return (FALSE);
- continue;
- }
- current = (cnt < current) ? cnt : current;
- rstrm->in_finger += current;
- cnt -= current;
+ int current;
+
+ while (cnt > 0)
+ {
+ current = rstrm->in_boundry - rstrm->in_finger;
+ if (current == 0)
+ {
+ if (!fill_input_buf (rstrm))
+ return FALSE;
+ continue;
}
- return (TRUE);
+ current = (cnt < current) ? cnt : current;
+ rstrm->in_finger += current;
+ cnt -= current;
+ }
+ return TRUE;
}
-static u_int fix_buf_size(s)
-register u_int s;
+static u_int
+internal_function
+fix_buf_size (u_int s)
{
-
- if (s < 100)
- s = 4000;
- return (RNDUP(s));
+ if (s < 100)
+ s = 4000;
+ return RNDUP (s);
}
OSDN Git Service
