1 /* $NetBSD: parse_args.c,v 1.2 1997/12/17 21:33:10 scw Exp $ */ 2 3 /*- 4 * Copyright (c) 1995 Theo de Raadt 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed under OpenBSD by 17 * Theo de Raadt for Willowglen Singapore. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 22 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 */ 34 35 #include <sys/param.h> 36 #include <sys/reboot.h> 37 #include <machine/prom.h> 38 #include <a.out.h> 39 40 #include "stand.h" 41 #include "libsa.h" 42 43 #define KERNEL_NAME "netbsd" 44 45 struct flags { 46 char c; 47 short bit; 48 } bf[] = { 49 { 'a', RB_ASKNAME }, 50 { 'b', RB_HALT }, 51 { 'y', RB_NOSYM }, 52 { 'd', RB_KDB }, 53 { 'm', RB_MINIROOT }, 54 { 'r', RB_DFLTROOT }, 55 { 's', RB_SINGLE }, 56 }; 57 58 void 59 parse_args(filep, flagp) 60 61 char **filep; 62 int *flagp; 63 64 { 65 char *name = KERNEL_NAME, *ptr; 66 int i, howto = 0; 67 char c; 68 69 if (bugargs.arg_start != bugargs.arg_end) { 70 ptr = bugargs.arg_start; 71 while (c = *ptr) { 72 while (c == ' ') 73 c = *++ptr; 74 if (c == '\0') 75 return; 76 if (c != '-') { 77 if ( ptr[1] == ':' ) { 78 howto |= RB_ASKNAME; 79 if ( ptr[2] == ' ' || ptr[2] == '\0' ) { 80 ptr += 2; 81 continue; 82 } 83 name = &(ptr[2]); 84 } else 85 name = ptr; 86 while ((c = *++ptr) && c != ' ') 87 ; 88 if (c) 89 *ptr++ = 0; 90 continue; 91 } 92 while ((c = *++ptr) && c != ' ') { 93 for (i = 0; i < sizeof(bf)/sizeof(bf[0]); i++) 94 if (bf[i].c == c) { 95 howto |= bf[i].bit; 96 } 97 } 98 } 99 } 100 *flagp = howto; 101 *filep = name; 102 } 103