bsd/kern/kern_descrip.c

129     struct filedesc *fdp, int old, int new, int flags, int32_t *retval);
342  * Parameters:	fdp				Pointer to filedesc fd lies in
348  * Locks:	Assumes proc_fdlock for process pointing to fdp is held by
354 	struct filedesc *fdp = p->p_fd;
357 	if (fd < fdp->fd_freefile)
358 		fdp->fd_freefile = fd;
360 	if (fd > fdp->fd_lastfile)
365 	while ((nfd = fdp->fd_lastfile) > 0 &&
366 			fdp->fd_ofiles[nfd] == NULL &&
367 			!(fdp->fd_ofileflags[nfd] & UF_RESERVED))
368 		fdp->fd_lastfile--;
466 	struct filedesc *fdp = p->p_fd;
481 	error = finishdup(p, fdp, old, new, 0, retval);
507 	struct filedesc *fdp = p->p_fd;
532 	if (new < 0 || new >= fdp->fd_nfiles) {
544 		while ((fdp->fd_ofileflags[new] & UF_RESERVED) == UF_RESERVED)  {
553 		if ((fdp->fd_ofiles[new] != NULL) &&
564 			if (fdp->fd_ofiles[new] != NULL)
576 	if (fdp->fd_ofiles[new] != 0)
578 	if ((fdp->fd_ofileflags[new] & UF_RESERVED) == 0)
581 	error = finishdup(p, fdp, old, new, 0, retval);
675 	struct filedesc *fdp = p->p_fd;
717 	pop = &fdp->fd_ofileflags[fd];
739 		error = finishdup(p, fdp, fd, i,
1437 		cmode = ((fopen.o_mode &~ fdp->fd_cmask) & ALLPERMS) & ~S_ISTXT;
2150  * Locks:	Assumes proc_fdlock for process pointing to fdp is held by
2159     struct filedesc *fdp, int old, int new, int fd_flags, int32_t *retval)
2170 	if ((ofp = fdp->fd_ofiles[old]) == NULL ||
2171 	    (fdp->fd_ofileflags[old] & UF_RESERVED)) {
2206 	if (fdp->fd_ofiles[new] != 0)
2208 	if ((fdp->fd_ofileflags[new] & UF_RESERVED) == 0)
2212 	if (new > fdp->fd_lastfile)
2213 		fdp->fd_lastfile = new;
2295 	struct filedesc *fdp = p->p_fd;
2314 	if ((fdp->fd_ofileflags[fd] & UF_RESERVED) == 0)
2347 	if (fd < fdp->fd_knlistsize)
2375 		if ((fdp->fd_ofileflags[fd] & UF_RESERVED) == 0)
2759 	struct filedesc *fdp = p->p_fd;
2776 		last = min(fdp->fd_nfiles, lim);
2777 		if ((i = want) < fdp->fd_freefile)
2778 			i = fdp->fd_freefile;
2780 			if (fdp->fd_ofiles[i] == NULL && !(fdp->fd_ofileflags[i] & UF_RESERVED)) {
2782 				if (i > fdp->fd_lastfile)
2783 					fdp->fd_lastfile = i;
2784 				if (want <= fdp->fd_freefile)
2785 					fdp->fd_freefile = i;
2794 		if (fdp->fd_nfiles >= lim)
2796 		if (fdp->fd_nfiles < NDEXTENT)
2799 			numfiles = 2 * fdp->fd_nfiles;
2810 		if (fdp->fd_nfiles >= numfiles) {
2819 		oldnfiles = fdp->fd_nfiles;
2820 		(void) memcpy(newofiles, fdp->fd_ofiles,
2821 				oldnfiles * sizeof(*fdp->fd_ofiles));
2823 				(numfiles - oldnfiles) * sizeof(*fdp->fd_ofiles));
2825 		(void) memcpy(newofileflags, fdp->fd_ofileflags,
2826 				oldnfiles * sizeof(*fdp->fd_ofileflags));
2829 						sizeof(*fdp->fd_ofileflags));
2830 		ofiles = fdp->fd_ofiles;
2831 		fdp->fd_ofiles = newofiles;
2832 		fdp->fd_ofileflags = newofileflags;
2833 		fdp->fd_nfiles = numfiles;
2860 	struct filedesc *fdp = p->p_fd;
2866 	if ((i = lim - fdp->fd_nfiles) > 0 && (n -= i) <= 0)
2868 	fpp = &fdp->fd_ofiles[fdp->fd_freefile];
2869 	flags = &fdp->fd_ofileflags[fdp->fd_freefile];
2870 	for (i = fdp->fd_nfiles - fdp->fd_freefile; --i >= 0; fpp++, flags++)
2921 	struct filedesc *fdp = p->p_fd;
2924 	if (fd < 0 || fd >= fdp->fd_nfiles ||
2925 			(fp = fdp->fd_ofiles[fd]) == NULL ||
2926 			(fdp->fd_ofileflags[fd] & UF_RESERVED)) {
2965 	struct filedesc *fdp = p->p_fd;
2969 	if (fd < 0 || fd >= fdp->fd_nfiles ||
2970 			(fp = fdp->fd_ofiles[fd]) == NULL ||
2971 			(fdp->fd_ofileflags[fd] & UF_RESERVED)) {
3024 	struct filedesc *fdp = p->p_fd;
3028 	if (fd < 0 || fd >= fdp->fd_nfiles ||
3029 			(fp = fdp->fd_ofiles[fd]) == NULL ||
3030 			(fdp->fd_ofileflags[fd] & UF_RESERVED)) {
3081 	struct filedesc *fdp = p->p_fd;
3085 	if (fd < 0 || fd >= fdp->fd_nfiles ||
3086 			(fp = fdp->fd_ofiles[fd]) == NULL ||
3087 			(fdp->fd_ofileflags[fd] & UF_RESERVED)) {
3136 	struct filedesc *fdp = p->p_fd;
3140 	if ( fd < 0 || fd >= fdp->fd_nfiles ||
3141 			(fp = fdp->fd_ofiles[fd]) == NULL ||
3142 			(fdp->fd_ofileflags[fd] & UF_RESERVED)) {
3193 	struct filedesc *fdp = p->p_fd;
3197 	if (fd < 0 || fd >= fdp->fd_nfiles ||
3198 			(fp = fdp->fd_ofiles[fd]) == NULL ||
3199 			(fdp->fd_ofileflags[fd] & UF_RESERVED)) {
3260 	struct filedesc *fdp = p->p_fd;
3264 	if (fd < 0 || fd >= fdp->fd_nfiles ||
3265 			(fp = fdp->fd_ofiles[fd]) == NULL ||
3266 			(fdp->fd_ofileflags[fd] & UF_RESERVED)) {
3315 	struct filedesc *fdp = p->p_fd;
3319 	if (fd < 0 || fd >= fdp->fd_nfiles ||
3320 			(fp = fdp->fd_ofiles[fd]) == NULL ||
3321 			(fdp->fd_ofileflags[fd] & UF_RESERVED)) {
3375 	struct filedesc *fdp = p->p_fd;
3379 	if (fd < 0 || fd >= fdp->fd_nfiles ||
3380 			(fp = fdp->fd_ofiles[fd]) == NULL ||
3381 			(fdp->fd_ofileflags[fd] & UF_RESERVED)) {
3429 	struct filedesc *fdp = p->p_fd;
3434 	if (fd < 0 || fdp == NULL || fd >= fdp->fd_nfiles ||
3435 			(fp = fdp->fd_ofiles[fd]) == NULL ||
3436 			(fdp->fd_ofileflags[fd] & UF_RESERVED)) {
3550 	struct filedesc *fdp = p->p_fd;
3555 	 if ((fp == FILEPROC_NULL) && (fd < 0 || fd >= fdp->fd_nfiles ||
3556 			(fp = fdp->fd_ofiles[fd]) == NULL ||
3557 			((fdp->fd_ofileflags[fd] & UF_RESERVED) &&
3558 			 !(fdp->fd_ofileflags[fd] & UF_CLOSING)))) {
4119 	struct filedesc *fdp = p->p_fd;
4124 	for (i = fdp->fd_lastfile; i >= 0; i--) {
4126 		struct fileproc *fp = fdp->fd_ofiles[i];
4127 		char *flagp = &fdp->fd_ofileflags[i];
4147                         if (i < fdp->fd_knlistsize)
4150 			if (i == fdp->fd_lastfile && i > 0)
4151 				fdp->fd_lastfile--;
4152 			if (i < fdp->fd_freefile)
4153 				fdp->fd_freefile = i;
4213 	struct filedesc *newfdp, *fdp = p->p_fd;
4228 	(void) memcpy(newfdp, fdp, sizeof(*newfdp));
4254 	if (newfdp->fd_cdir == NULL && fdp->fd_cdir) {
4264 	        vnode_rele(fdp->fd_cdir);
4265 		fdp->fd_cdir = NULL;
4278 	if (newfdp->fd_rdir == NULL && fdp->fd_rdir) {
4331 	if (fdp->fd_nfiles > 0) {
4335 		(void) memcpy(newfdp->fd_ofiles, fdp->fd_ofiles,
4336 					(newfdp->fd_lastfile + 1) * sizeof(*fdp->fd_ofiles));
4337 		(void) memcpy(newfdp->fd_ofileflags, fdp->fd_ofileflags,
4338 					(newfdp->fd_lastfile + 1) * sizeof(*fdp->fd_ofileflags));
4411 	struct filedesc *fdp;
4418 	fdp = p->p_fd;
4420 	if ((fdp == NULL) || (--fdp->fd_refcnt > 0)) {
4424 	if (fdp->fd_refcnt == 0xffff)
4429 	if (fdp->fd_nfiles > 0 && fdp->fd_ofiles) {
4430 	        for (i = fdp->fd_lastfile; i >= 0; i--) {
4431 			if ((fp = fdp->fd_ofiles[i]) != NULL) {
4433 			  if (fdp->fd_ofileflags[i] & UF_RESERVED)
4441 				if (i < fdp->fd_knlistsize)
4449 		FREE_ZONE(fdp->fd_ofiles, fdp->fd_nfiles * OFILESIZE, M_OFILETABL);
4450 		fdp->fd_ofiles = NULL;
4451 		fdp->fd_nfiles = 0;
4456 	if (fdp->fd_cdir)
4457 	        vnode_rele(fdp->fd_cdir);
4458 	if (fdp->fd_rdir)
4459 		vnode_rele(fdp->fd_rdir);
4465 	if (fdp->fd_knlist)
4466 		FREE(fdp->fd_knlist, M_KQUEUE);
4467 	if (fdp->fd_knhash)
4468 		FREE(fdp->fd_knhash, M_KQUEUE);
4470 	FREE_ZONE(fdp, sizeof(*fdp), M_FILEDESC);
4959  * Parameters:	fdp				filedesc pointer to fill in
4974 dupfdopen(struct filedesc *fdp, int indx, int dfd, int flags, int error)
4992 	fp = fdp->fd_ofiles[indx];
4993 	if (dfd < 0 || dfd >= fdp->fd_nfiles ||
4994 			(wfp = fdp->fd_ofiles[dfd]) == NULL || wfp == fp ||
4995 	                (fdp->fd_ofileflags[dfd] & UF_RESERVED)) {
5029 		if (indx > fdp->fd_lastfile)
5030 			fdp->fd_lastfile = indx;
5037 		fdp->fd_ofileflags[indx] = fdp->fd_ofileflags[dfd] |