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parse.c revision 1.2 
      1 /*	$NetBSD: parse.c,v 1.2 2013/01/16 15:15:01 tsutsui Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1992 OMRON Corporation.
      5  *
      6  * This code is derived from software contributed to Berkeley by
      7  * OMRON Corporation.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by the University of
     20  *	California, Berkeley and its contributors.
     21  * 4. Neither the name of the University nor the names of its contributors
     22  *    may be used to endorse or promote products derived from this software
     23  *    without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  *
     37  *	@(#)parse.c	8.1 (Berkeley) 6/10/93
     38  */
     39 /*
     40  * Copyright (c) 1992, 1993
     41  *	The Regents of the University of California.  All rights reserved.
     42  *
     43  * This code is derived from software contributed to Berkeley by
     44  * OMRON Corporation.
     45  *
     46  * Redistribution and use in source and binary forms, with or without
     47  * modification, are permitted provided that the following conditions
     48  * are met:
     49  * 1. Redistributions of source code must retain the above copyright
     50  *    notice, this list of conditions and the following disclaimer.
     51  * 2. Redistributions in binary form must reproduce the above copyright
     52  *    notice, this list of conditions and the following disclaimer in the
     53  *    documentation and/or other materials provided with the distribution.
     54  * 3. Neither the name of the University nor the names of its contributors
     55  *    may be used to endorse or promote products derived from this software
     56  *    without specific prior written permission.
     57  *
     58  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     59  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     60  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     61  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     62  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     63  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     64  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     65  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     66  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     67  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     68  * SUCH DAMAGE.
     69  *
     70  *	@(#)parse.c	8.1 (Berkeley) 6/10/93
     71  */
     72 
     73 /*
     74  * parse.c -- command parser
     75  * by A.Fujita, JAN-30-1992
     76  */
     77 
     78 #include <lib/libkern/libkern.h>
     79 #include <luna68k/stand/boot/samachdep.h>
     80 #include <luna68k/stand/boot/status.h>
     81 
     82 int
     83 check_args(int argc, char *argv[])
     84 {
     85 	int i;
     86 
     87 	for ( i = 0; i < argc; i++)
     88 		printf("argv[%d] = \"%s\"\n", i, argv[i]);
     89 
     90 	return(ST_NORMAL);
     91 }
     92 
     93 int
     94 exit_program(int argc, char *argv[])
     95 {
     96 	return(ST_EXIT);
     97 }
     98 
     99 struct command_entry {
    100 	char *name;
    101 	int (*func)(int, char **);
    102 };
    103 
    104 struct command_entry entries[] = {
    105 	{ "b",		boot         },
    106 	{ "boot",	boot         },
    107 	{ "chkargs",	check_args   },
    108 	{ "disklabel",	disklabel    },
    109 	{ "exit",	exit_program },
    110 #ifdef notyet
    111 	{ "fsdump",	fsdump       },
    112 	{ "fsrestore",	fsrestore    },
    113 #endif
    114 	{ "howto",	how_to_boot  },
    115 	{ "ls",		cmd_ls       },
    116 	{ "screen",	screen	     },
    117 #ifdef notyet
    118 	{ "tape",	tape	     },
    119 	{ "tp",		tape	     },
    120 #endif
    121 	{ "scsi",	scsi         },
    122 	{ "quit",	exit_program },
    123 	{ 0, 0 }
    124 };
    125 
    126 
    127 int
    128 parse(int argc, char *argv[])
    129 {
    130 	int i, status = ST_NOTFOUND;
    131 
    132 	for (i = 0; entries[i].name != (char *) 0; i++) {
    133 		if (!strcmp(argv[0], entries[i].name)) {
    134 			status = (*entries[i].func)(argc, argv);
    135 			break;
    136 		}
    137 	}
    138 
    139 	return(status);
    140 }
    141 
    142 
    143 
    144 /*
    145  * getargs -- make argument arrays
    146  */
    147 
    148 int
    149 getargs(char buffer[], char *argv[], int maxargs)
    150 {
    151 	int n = 0;
    152 	char *p = buffer;
    153 
    154 	argv[n++] = p;
    155 	while (*p != '\0') {
    156 		if ( *p == ' ' ) {
    157 			*p = '\0';
    158 		} else if (p != buffer && *(p-1) == '\0') {
    159 			if ( n < maxargs )
    160 				argv[n++] = p;
    161 		}
    162 		p++;
    163 	}
    164 
    165 	return(n);
    166 }
    167