83 lines
1.7 KiB
C
83 lines
1.7 KiB
C
#ifndef lint
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static char sccsid[] = "@(#)t_optmgmt.c 1.1 94/10/31 SMI";
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#endif
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/* Copyright (c) 1984 AT&T */
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/* All Rights Reserved */
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
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/* The copyright notice above does not evidence any */
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/* actual or intended publication of such source code. */
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/*
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#ident "@(#)libnsl:nsl/t_optmgmt.c 1.3"
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*/
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/errno.h>
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#include <sys/stream.h>
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#include <sys/ioctl.h>
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#include <sys/stropts.h>
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#include <nettli/tihdr.h>
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#include <nettli/timod.h>
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#include <nettli/tiuser.h>
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#include <sys/signal.h>
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extern int t_errno;
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extern int errno;
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extern struct _ti_user *_t_checkfd();
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t_optmgmt(fd, req, ret)
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int fd;
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struct t_optmgmt *req;
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struct t_optmgmt *ret;
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{
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int size;
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register char *buf;
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register struct T_optmgmt_req *optreq;
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register struct _ti_user *tiptr;
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int savemask;
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if ((tiptr = _t_checkfd(fd)) == NULL)
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return(-1);
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savemask = sigblock(sigmask(SIGPOLL));
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buf = tiptr->ti_ctlbuf;
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optreq = (struct T_optmgmt_req *)buf;
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optreq->PRIM_type = T_OPTMGMT_REQ;
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optreq->OPT_length = req->opt.len;
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optreq->OPT_offset = 0;
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optreq->MGMT_flags = req->flags;
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size = sizeof(struct T_optmgmt_req);
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if (req->opt.len) {
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_t_aligned_copy(buf, req->opt.len, size,
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req->opt.buf, &optreq->OPT_offset);
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size = optreq->OPT_offset + optreq->OPT_length;
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}
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if (!_t_do_ioctl(fd, buf, size, TI_OPTMGMT, 0)) {
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sigsetmask(savemask);
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return(-1);
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}
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sigsetmask(savemask);
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if (optreq->OPT_length > ret->opt.maxlen) {
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t_errno = TBUFOVFLW;
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return(-1);
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}
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memcpy(ret->opt.buf, (char *) (buf + optreq->OPT_offset),
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(int)optreq->OPT_length);
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ret->opt.len = optreq->OPT_length;
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ret->flags = optreq->MGMT_flags;
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return(0);
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}
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