X-Git-Url: http://mmka.chem.univ.gda.pl/gitweb/?a=blobdiff_plain;f=source%2Flib%2Fxdrf%2Fxdr_stdio.c;fp=source%2Flib%2Fxdrf%2Fxdr_stdio.c;h=12b17099cdda048bc12dd489e22ac58be6d94ad4;hb=0a11a2c4ccee14ed99ae44f2565b270ba8d4bbb6;hp=0000000000000000000000000000000000000000;hpb=5eb407964903815242c59de10960f42761139e10;p=unres.git diff --git a/source/lib/xdrf/xdr_stdio.c b/source/lib/xdrf/xdr_stdio.c new file mode 100644 index 0000000..12b1709 --- /dev/null +++ b/source/lib/xdrf/xdr_stdio.c @@ -0,0 +1,196 @@ +/* + * 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 + */ + +/* + * xdr_stdio.c, XDR implementation on standard i/o file. + * + * Copyright (C) 1984, Sun Microsystems, Inc. + * + * This set of routines implements a XDR on a stdio stream. + * XDR_ENCODE serializes onto the stream, XDR_DECODE de-serializes + * from the stream. + */ + +#include "types.h" +#include +#include "xdr.h" + +#ifdef USE_IN_LIBIO +# include +# define fflush(s) INTUSE(_IO_fflush) (s) +# define fread(p, m, n, s) INTUSE(_IO_fread) (p, m, n, s) +# define ftell(s) INTUSE(_IO_ftell) (s) +# define fwrite(p, m, n, s) INTUSE(_IO_fwrite) (p, m, n, s) +#endif + +static bool_t xdrstdio_getlong (XDR *, long *); +static bool_t xdrstdio_putlong (XDR *, const long *); +static bool_t xdrstdio_getbytes (XDR *, caddr_t, u_int); +static bool_t xdrstdio_putbytes (XDR *, const char *, u_int); +static u_int xdrstdio_getpos (const XDR *); +static bool_t xdrstdio_setpos (XDR *, u_int); +static int32_t *xdrstdio_inline (XDR *, u_int); +static void xdrstdio_destroy (XDR *); +static bool_t xdrstdio_getint32 (XDR *, int32_t *); +static bool_t xdrstdio_putint32 (XDR *, const int32_t *); + +/* + * Ops vector for stdio type XDR + */ +static const struct xdr_ops xdrstdio_ops = +{ + xdrstdio_getlong, /* deserialize a long int */ + xdrstdio_putlong, /* serialize a long int */ + xdrstdio_getbytes, /* deserialize counted bytes */ + xdrstdio_putbytes, /* serialize counted bytes */ + xdrstdio_getpos, /* get offset in the stream */ + xdrstdio_setpos, /* set offset in the stream */ + xdrstdio_inline, /* prime stream for inline macros */ + xdrstdio_destroy, /* destroy stream */ + xdrstdio_getint32, /* deserialize a int */ + xdrstdio_putint32 /* serialize a int */ +}; + +/* + * Initialize a stdio xdr stream. + * Sets the xdr stream handle xdrs for use on the stream file. + * Operation flag is set to op. + */ +void +xdrstdio_create (XDR *xdrs, FILE *file, enum xdr_op op) +{ + xdrs->x_op = op; + /* We have to add the const since the `struct xdr_ops' in `struct XDR' + is not `const'. */ + xdrs->x_ops = (struct xdr_ops *) &xdrstdio_ops; + xdrs->x_private = (caddr_t) file; + xdrs->x_handy = 0; + xdrs->x_base = 0; +} + +/* + * Destroy a stdio xdr stream. + * Cleans up the xdr stream handle xdrs previously set up by xdrstdio_create. + */ +static void +xdrstdio_destroy (XDR *xdrs) +{ + (void) fflush ((FILE *) xdrs->x_private); + /* xx should we close the file ?? */ +}; + +static bool_t +xdrstdio_getlong (XDR *xdrs, long *lp) +{ + u_int32_t mycopy; + + if (fread ((caddr_t) &mycopy, 4, 1, (FILE *) xdrs->x_private) != 1) + return FALSE; + *lp = (long) ntohl (mycopy); + return TRUE; +} + +static bool_t +xdrstdio_putlong (XDR *xdrs, const long *lp) +{ + int32_t mycopy = htonl ((u_int32_t) *lp); + + if (fwrite ((caddr_t) &mycopy, 4, 1, (FILE *) xdrs->x_private) != 1) + return FALSE; + return TRUE; +} + +static bool_t +xdrstdio_getbytes (XDR *xdrs, const caddr_t addr, u_int len) +{ + if ((len != 0) && (fread (addr, (int) len, 1, + (FILE *) xdrs->x_private) != 1)) + return FALSE; + return TRUE; +} + +static bool_t +xdrstdio_putbytes (XDR *xdrs, const char *addr, u_int len) +{ + if ((len != 0) && (fwrite (addr, (int) len, 1, + (FILE *) xdrs->x_private) != 1)) + return FALSE; + return TRUE; +} + +static u_int +xdrstdio_getpos (const XDR *xdrs) +{ + return (u_int) ftell ((FILE *) xdrs->x_private); +} + +static bool_t +xdrstdio_setpos (XDR *xdrs, u_int pos) +{ + return fseek ((FILE *) xdrs->x_private, (long) pos, 0) < 0 ? FALSE : TRUE; +} + +static int32_t * +xdrstdio_inline (XDR *xdrs, u_int len) +{ + /* + * Must do some work to implement this: must insure + * enough data in the underlying stdio buffer, + * that the buffer is aligned so that we can indirect through a + * long *, and stuff this pointer in xdrs->x_buf. Doing + * a fread or fwrite to a scratch buffer would defeat + * most of the gains to be had here and require storage + * management on this buffer, so we don't do this. + */ + return NULL; +} + +static bool_t +xdrstdio_getint32 (XDR *xdrs, int32_t *ip) +{ + int32_t mycopy; + + if (fread ((caddr_t) &mycopy, 4, 1, (FILE *) xdrs->x_private) != 1) + return FALSE; + *ip = ntohl (mycopy); + return TRUE; +} + +static bool_t +xdrstdio_putint32 (XDR *xdrs, const int32_t *ip) +{ + int32_t mycopy = htonl (*ip); + + ip = &mycopy; + if (fwrite ((caddr_t) ip, 4, 1, (FILE *) xdrs->x_private) != 1) + return FALSE; + return TRUE; +} + +/* libc_hidden_def (xdrstdio_create) */