52379d36a9
boot_parse_arg to parse a single arg boot_parse_cmdline to parse a command line string boot_parse_args to parse all the args in a vector boot_howto_to_env Convert howto bits to env vars boot_env_to_howto Return howto mask mased on what's set in the environment. All these routines return an int that's the bitmask of the args translated to RB_* flags. As a special case, the 'S' flag sets the comconsole_speed env var. Any arg that looks like a=b will set the env key 'a' to value 'b'. If =b is omitted, 'a' is set to '1'. This should help us reduce the number of redundant copies of these routines in the tree. It should also give a more uniform experience between platforms. Also, invent a new flag RB_PROBE that's set when 'P' is parsed. On x86 + BIOS, this means 'probe for the keyboard, and if it's not there set both RB_MULTIPLE and RB_SERIAL (which means show the output on both video and serial consoles, but make serial primary). Others it may be some similar concept of probing, but it's loader dependent what, exactly, it means. These routines are suitable for /boot/loader and/or the kernel, though they may not be suitable for the tightly hand-rolled-for-space environments like boot2. Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D16205
43 lines
1.7 KiB
C
43 lines
1.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2018 Netflix
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* Copyright (c) 2014 Roger Pau Monné <roger.pau@citrix.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_BOOT_H_
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#define _SYS_BOOT_H_
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int boot_env_to_howto(void);
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void boot_howto_to_env(int howto);
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int boot_parse_arg(char *v);
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int boot_parse_cmdline_delim(char *cmdline, const char *delim);
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int boot_parse_cmdline(char *cmdline);
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int boot_parse_args(int argc, char *argv[]);
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#endif /* !_SYS_BOOT_H_ */
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