diff options
Diffstat (limited to 'usr/src/psm/promif/ieee1275/common/prom_stdin.c')
| -rw-r--r-- | usr/src/psm/promif/ieee1275/common/prom_stdin.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/usr/src/psm/promif/ieee1275/common/prom_stdin.c b/usr/src/psm/promif/ieee1275/common/prom_stdin.c new file mode 100644 index 0000000000..f371d5e4ad --- /dev/null +++ b/usr/src/psm/promif/ieee1275/common/prom_stdin.c @@ -0,0 +1,73 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (c) 1994, by Sun Microsystems, Inc. + * All rights reserved. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <sys/promif.h> +#include <sys/promimpl.h> + +/* + * Return ihandle of stdin + */ +ihandle_t +prom_stdin_ihandle(void) +{ + static ihandle_t istdin; + static char *name = "stdin"; + + if (istdin) + return (istdin); + + if (prom_getproplen(prom_chosennode(), name) != + sizeof (ihandle_t)) { +#if defined(PROMIF_DEBUG) || defined(lint) + prom_fatal_error("No stdout ihandle?"); +#endif + return (istdin = (ihandle_t)-1); + } + (void) prom_getprop(prom_chosennode(), name, + (caddr_t)(&istdin)); + istdin = prom_decode_int(istdin); + return (istdin); +} + +/* + * Return phandle of stdin + */ +dnode_t +prom_stdin_node(void) +{ + static phandle_t pstdin; + ihandle_t istdin; + + if (pstdin) + return (pstdin); + + if ((istdin = prom_stdin_ihandle()) == (ihandle_t)-1) + return (pstdin = (dnode_t)OBP_BADNODE); + + return (pstdin = prom_getphandle(istdin)); +} |
