Home | History | Annotate | Line # | Download | only in kern
subr_userconf.c revision 1.14 
      1 /*	$NetBSD: subr_userconf.c,v 1.14 2005/05/29 22:24:15 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1996 Mats O Jansson <moj (at) stacken.kth.se>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by Mats O Jansson.
     18  * 4. The name of the author may not be used to endorse or promote
     19  *    products derived from this software without specific prior written
     20  *    permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
     23  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     24  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
     26  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  *
     34  *	OpenBSD: subr_userconf.c,v 1.19 2000/01/08 23:23:37 d Exp
     35  */
     36 
     37 #include <sys/cdefs.h>
     38 __KERNEL_RCSID(0, "$NetBSD: subr_userconf.c,v 1.14 2005/05/29 22:24:15 christos Exp $");
     39 
     40 #include "opt_userconf.h"
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/device.h>
     45 #include <sys/malloc.h>
     46 #include <sys/time.h>
     47 
     48 #include <dev/cons.h>
     49 
     50 extern struct cfdata cfdata[];
     51 
     52 int userconf_base = 16;				/* Base for "large" numbers */
     53 int userconf_maxdev = -1;			/* # of used device slots   */
     54 int userconf_totdev = -1;			/* # of device slots        */
     55 int userconf_maxlocnames = -1;			/* # of locnames            */
     56 int userconf_cnt = -1;				/* Line counter for ...     */
     57 int userconf_lines = 12;			/* ... # of lines per page  */
     58 int userconf_histlen = 0;
     59 int userconf_histcur = 0;
     60 char userconf_history[1024];
     61 int userconf_histsz = sizeof(userconf_history);
     62 char userconf_argbuf[40];			/* Additional input         */
     63 char userconf_cmdbuf[40];			/* Command line             */
     64 char userconf_histbuf[40];
     65 
     66 void userconf_init(void);
     67 int userconf_more(void);
     68 void userconf_modify(const char *, int*);
     69 void userconf_hist_cmd(char);
     70 void userconf_hist_int(int);
     71 void userconf_hist_eoc(void);
     72 void userconf_pnum(int);
     73 void userconf_pdevnam(short);
     74 void userconf_pdev(short);
     75 int userconf_number(char *, int *);
     76 int userconf_device(char *, int *, short *, short *);
     77 void userconf_change(int);
     78 void userconf_disable(int);
     79 void userconf_enable(int);
     80 void userconf_help(void);
     81 void userconf_list(void);
     82 void userconf_common_dev(char *, int, short, short, char);
     83 void userconf_add_read(char *, char, char *, int, int *);
     84 int userconf_parse(char *);
     85 
     86 static int getsn(char *, int);
     87 
     88 #define UC_CHANGE 'c'
     89 #define UC_DISABLE 'd'
     90 #define UC_ENABLE 'e'
     91 #define UC_FIND 'f'
     92 #define UC_SHOW 's'
     93 
     94 const char *userconf_cmds[] = {
     95 	"base",		"b",
     96 	"change",	"c",
     97 	"disable",	"d",
     98 	"enable",	"e",
     99 	"exit",		"q",
    100 	"find",		"f",
    101 	"help",		"h",
    102 	"list",		"l",
    103 	"lines",	"L",
    104 	"quit",		"q",
    105 	"?",		"h",
    106 	"",		 "",
    107 };
    108 
    109 void
    110 userconf_init()
    111 {
    112 	int i;
    113 	struct cfdata *cf;
    114 
    115 	i = 0;
    116 	for (cf = cfdata; cf->cf_name; cf++)
    117 		i++;
    118 
    119 	userconf_maxdev = i - 1;
    120 	userconf_totdev = i - 1;
    121 }
    122 
    123 int
    124 userconf_more()
    125 {
    126 	int quit = 0;
    127 	char c = '\0';
    128 
    129 	if (userconf_cnt != -1) {
    130 		if (userconf_cnt == userconf_lines) {
    131 			printf("-- more --");
    132 			c = cngetc();
    133 			userconf_cnt = 0;
    134 			printf("\r            \r");
    135 		}
    136 		userconf_cnt++;
    137 		if (c == 'q' || c == 'Q')
    138 			quit = 1;
    139 	}
    140 	return (quit);
    141 }
    142 
    143 void
    144 userconf_hist_cmd(cmd)
    145 	char cmd;
    146 {
    147 	userconf_histcur = userconf_histlen;
    148 	if (userconf_histcur < userconf_histsz) {
    149 		userconf_history[userconf_histcur] = cmd;
    150 		userconf_histcur++;
    151 	}
    152 }
    153 
    154 void
    155 userconf_hist_int(val)
    156 	int val;
    157 {
    158 	snprintf(userconf_histbuf, sizeof(userconf_histbuf), " %d", val);
    159 	if ((userconf_histcur + strlen(userconf_histbuf)) < userconf_histsz) {
    160 		memcpy(&userconf_history[userconf_histcur],
    161 		      userconf_histbuf,
    162 		      strlen(userconf_histbuf));
    163 		userconf_histcur = userconf_histcur + strlen(userconf_histbuf);
    164 	}
    165 }
    166 
    167 void
    168 userconf_hist_eoc()
    169 {
    170 	if (userconf_histcur < userconf_histsz) {
    171 		userconf_history[userconf_histcur] = '\n';
    172 		userconf_histcur++;
    173 		userconf_histlen = userconf_histcur;
    174 	}
    175 }
    176 
    177 void
    178 userconf_pnum(val)
    179 	int val;
    180 {
    181 	if (val > -2 && val < 16) {
    182 		printf("%d",val);
    183 	} else {
    184 		switch (userconf_base) {
    185 		case 8:
    186 			printf("0%o",val);
    187 			break;
    188 		case 10:
    189 			printf("%d",val);
    190 			break;
    191 		case 16:
    192 		default:
    193 			printf("0x%x",val);
    194 			break;
    195 		}
    196 	}
    197 }
    198 
    199 void
    200 userconf_pdevnam(dev)
    201 	short dev;
    202 {
    203 	struct cfdata *cd;
    204 
    205 	cd = &cfdata[dev];
    206 	printf("%s", cd->cf_name);
    207 	switch (cd->cf_fstate) {
    208 	case FSTATE_NOTFOUND:
    209 	case FSTATE_DNOTFOUND:
    210 		printf("%d", cd->cf_unit);
    211 		break;
    212 	case FSTATE_FOUND:
    213 		printf("*FOUND*");
    214 		break;
    215 	case FSTATE_STAR:
    216 	case FSTATE_DSTAR:
    217 		printf("*");
    218 		break;
    219 	default:
    220 		printf("*UNKNOWN*");
    221 		break;
    222 	}
    223 }
    224 
    225 void
    226 userconf_pdev(devno)
    227 	short devno;
    228 {
    229 	struct cfdata *cd;
    230 	const struct cfparent *cfp;
    231 	int   *l;
    232 	const char * const *ln;
    233 
    234 	if (devno > userconf_maxdev) {
    235 		printf("Unknown devno (max is %d)\n", userconf_maxdev);
    236 		return;
    237 	}
    238 
    239 	cd = &cfdata[devno];
    240 
    241 	printf("[%3d] ", devno);
    242 	userconf_pdevnam(devno);
    243 	printf(" at");
    244 	cfp = cd->cf_pspec;
    245 	if (cfp == NULL)
    246 		printf(" root");
    247 	else if (cfp->cfp_parent != NULL && cfp->cfp_unit != -1)
    248 		printf(" %s%d", cfp->cfp_parent, cfp->cfp_unit);
    249 	else
    250 		printf(" %s?", cfp->cfp_parent != NULL ? cfp->cfp_parent
    251 						       : cfp->cfp_iattr);
    252 	switch (cd->cf_fstate) {
    253 	case FSTATE_NOTFOUND:
    254 	case FSTATE_FOUND:
    255 	case FSTATE_STAR:
    256 		break;
    257 	case FSTATE_DNOTFOUND:
    258 	case FSTATE_DSTAR:
    259 		printf(" disable");
    260 		break;
    261 	default:
    262 		printf(" ???");
    263 		break;
    264 	}
    265 	l = cd->cf_loc;
    266 	ln = cd->cf_locnames;
    267 	while (ln && *ln) {
    268 		printf(" %s ", *ln++);
    269 		userconf_pnum(*l++);
    270 	}
    271 	printf("\n");
    272 }
    273 
    274 int
    275 userconf_number(c, val)
    276 	char *c;
    277 	int *val;
    278 {
    279 	u_int num = 0;
    280 	int neg = 0;
    281 	int base = 10;
    282 
    283 	if (*c == '-') {
    284 		neg = 1;
    285 		c++;
    286 	}
    287 	if (*c == '0') {
    288 		base = 8;
    289 		c++;
    290 		if (*c == 'x' || *c == 'X') {
    291 			base = 16;
    292 			c++;
    293 		}
    294 	}
    295 	while (*c != '\n' && *c != '\t' && *c != ' ' && *c != '\0') {
    296 		u_char cc = *c;
    297 
    298 		if (cc >= '0' && cc <= '9')
    299 			cc = cc - '0';
    300 		else if (cc >= 'a' && cc <= 'f')
    301 			cc = cc - 'a' + 10;
    302 		else if (cc >= 'A' && cc <= 'F')
    303 			cc = cc - 'A' + 10;
    304 		else
    305 			return (-1);
    306 
    307 		if (cc > base)
    308 			return (-1);
    309 		num = num * base + cc;
    310 		c++;
    311 	}
    312 
    313 	if (neg && num > INT_MAX)	/* overflow */
    314 		return (1);
    315 	*val = neg ? - num : num;
    316 	return (0);
    317 }
    318 
    319 int
    320 userconf_device(cmd, len, unit, state)
    321 	char *cmd;
    322 	int *len;
    323 	short *unit, *state;
    324 {
    325 	short u = 0, s = FSTATE_FOUND;
    326 	int l = 0;
    327 	char *c;
    328 
    329 	c = cmd;
    330 	while (*c >= 'a' && *c <= 'z') {
    331 		l++;
    332 		c++;
    333 	}
    334 	if (*c == '*') {
    335 		s = FSTATE_STAR;
    336 		c++;
    337 	} else {
    338 		while (*c >= '0' && *c <= '9') {
    339 			s = FSTATE_NOTFOUND;
    340 			u = u*10 + *c - '0';
    341 			c++;
    342 		}
    343 	}
    344 	while (*c == ' ' || *c == '\t' || *c == '\n')
    345 		c++;
    346 
    347 	if (*c == '\0') {
    348 		*len = l;
    349 		*unit = u;
    350 		*state = s;
    351 		return(0);
    352 	}
    353 
    354 	return(-1);
    355 }
    356 
    357 void
    358 userconf_modify(item, val)
    359 	const char *item;
    360 	int  *val;
    361 {
    362 	int ok = 0;
    363 	int a;
    364 	char *c;
    365 
    366 	while (!ok) {
    367 		printf("%s [", item);
    368 		userconf_pnum(*val);
    369 		printf("] ? ");
    370 
    371 		getsn(userconf_argbuf, sizeof(userconf_argbuf));
    372 
    373 		c = userconf_argbuf;
    374 		while (*c == ' ' || *c == '\t' || *c == '\n') c++;
    375 
    376 		if (*c != '\0') {
    377 			if (userconf_number(c, &a) == 0) {
    378 				*val = a;
    379 				ok = 1;
    380 			} else {
    381 				printf("Unknown argument\n");
    382 			}
    383 		} else {
    384 			ok = 1;
    385 		}
    386 	}
    387 }
    388 
    389 void
    390 userconf_change(devno)
    391 	int devno;
    392 {
    393 	struct cfdata *cd;
    394 	char c = '\0';
    395 	int   *l;
    396 	int   ln;
    397 	const char * const *locnames;
    398 
    399 	if (devno <=  userconf_maxdev) {
    400 
    401 		userconf_pdev(devno);
    402 
    403 		while (c != 'y' && c != 'Y' && c != 'n' && c != 'N') {
    404 			printf("change (y/n) ?");
    405 			c = cngetc();
    406 			printf("\n");
    407 		}
    408 
    409 		if (c == 'y' || c == 'Y') {
    410 
    411 			/* XXX add cmd 'c' <devno> */
    412 			userconf_hist_cmd('c');
    413 			userconf_hist_int(devno);
    414 
    415 			cd = &cfdata[devno];
    416 			l = cd->cf_loc;
    417 			locnames = cd->cf_locnames;
    418 			ln = 0;
    419 
    420 			while (locnames[ln])
    421 			{
    422 				userconf_modify(locnames[ln], l);
    423 
    424 				/* XXX add *l */
    425 				userconf_hist_int(*l);
    426 
    427 				ln++;
    428 				l++;
    429 			}
    430 
    431 			printf("[%3d] ", devno);
    432 			userconf_pdevnam(devno);
    433 			printf(" changed\n");
    434 			userconf_pdev(devno);
    435 
    436 			/* XXX add eoc */
    437 			userconf_hist_eoc();
    438 
    439 		}
    440 	} else {
    441 		printf("Unknown devno (max is %d)\n", userconf_maxdev);
    442 	}
    443 }
    444 
    445 void
    446 userconf_disable(devno)
    447 	int devno;
    448 {
    449 	int done = 0;
    450 
    451 	if (devno <= userconf_maxdev) {
    452 		switch (cfdata[devno].cf_fstate) {
    453 		case FSTATE_NOTFOUND:
    454 			cfdata[devno].cf_fstate = FSTATE_DNOTFOUND;
    455 			break;
    456 		case FSTATE_STAR:
    457 			cfdata[devno].cf_fstate = FSTATE_DSTAR;
    458 			break;
    459 		case FSTATE_DNOTFOUND:
    460 		case FSTATE_DSTAR:
    461 			done = 1;
    462 			break;
    463 		default:
    464 			printf("Error unknown state\n");
    465 			break;
    466 		}
    467 
    468 		printf("[%3d] ", devno);
    469 		userconf_pdevnam(devno);
    470 		if (done) {
    471 			printf(" already");
    472 		} else {
    473 			/* XXX add cmd 'd' <devno> eoc */
    474 			userconf_hist_cmd('d');
    475 			userconf_hist_int(devno);
    476 			userconf_hist_eoc();
    477 		}
    478 		printf(" disabled\n");
    479 	} else {
    480 		printf("Unknown devno (max is %d)\n", userconf_maxdev);
    481 	}
    482 }
    483 
    484 void
    485 userconf_enable(devno)
    486 	int devno;
    487 {
    488 	int done = 0;
    489 
    490 	if (devno <= userconf_maxdev) {
    491 		switch (cfdata[devno].cf_fstate) {
    492 		case FSTATE_DNOTFOUND:
    493 			cfdata[devno].cf_fstate = FSTATE_NOTFOUND;
    494 			break;
    495 		case FSTATE_DSTAR:
    496 			cfdata[devno].cf_fstate = FSTATE_STAR;
    497 			break;
    498 		case FSTATE_NOTFOUND:
    499 		case FSTATE_STAR:
    500 			done = 1;
    501 			break;
    502 		default:
    503 			printf("Error unknown state\n");
    504 			break;
    505 		}
    506 
    507 		printf("[%3d] ", devno);
    508 		userconf_pdevnam(devno);
    509 		if (done) {
    510 			printf(" already");
    511 		} else {
    512 			/* XXX add cmd 'e' <devno> eoc */
    513 			userconf_hist_cmd('d');
    514 			userconf_hist_int(devno);
    515 			userconf_hist_eoc();
    516 		}
    517 		printf(" enabled\n");
    518 	} else {
    519 		printf("Unknown devno (max is %d)\n", userconf_maxdev);
    520 	}
    521 }
    522 
    523 void
    524 userconf_help()
    525 {
    526 	int j = 0, k;
    527 
    528 	printf("command   args                description\n");
    529 	while (*userconf_cmds[j] != '\0') {
    530 		printf(userconf_cmds[j]);
    531 		k = strlen(userconf_cmds[j]);
    532 		while (k < 10) {
    533 			printf(" ");
    534 			k++;
    535 		}
    536 		switch (*userconf_cmds[j+1]) {
    537 		case 'L':
    538 			printf("[count]             number of lines before more");
    539 			break;
    540 		case 'b':
    541 			printf("8|10|16             base on large numbers");
    542 			break;
    543 		case 'c':
    544 			printf("devno|dev           change devices");
    545 			break;
    546 		case 'd':
    547 			printf("devno|dev           disable devices");
    548 			break;
    549 		case 'e':
    550 			printf("devno|dev           enable devices");
    551 			break;
    552 		case 'f':
    553 			printf("devno|dev           find devices");
    554 			break;
    555 		case 'h':
    556 			printf("                    this message");
    557 			break;
    558 		case 'l':
    559 			printf("                    list configuration");
    560 			break;
    561 		case 'q':
    562 			printf("                    leave userconf");
    563 			break;
    564 		default:
    565 			printf("                    don't know");
    566 			break;
    567 		}
    568 		printf("\n");
    569 		j += 2;
    570 	}
    571 }
    572 
    573 void
    574 userconf_list()
    575 {
    576 	int i = 0;
    577 
    578 	userconf_cnt = 0;
    579 
    580 	while (cfdata[i].cf_name != NULL) {
    581 		if (userconf_more())
    582 			break;
    583 		userconf_pdev(i++);
    584 	}
    585 
    586 	userconf_cnt = -1;
    587 }
    588 
    589 void
    590 userconf_common_dev(dev, len, unit, state, routine)
    591 	char *dev;
    592 	int len;
    593 	short unit, state;
    594 	char routine;
    595 {
    596 	int i = 0;
    597 
    598 	switch (routine) {
    599 	case UC_CHANGE:
    600 		break;
    601 	default:
    602 		userconf_cnt = 0;
    603 		break;
    604 	}
    605 
    606 	while (cfdata[i].cf_name != NULL) {
    607 		if (strlen(cfdata[i].cf_name) == len) {
    608 
    609 			/*
    610 			 * Ok, if device name is correct
    611 			 *  If state == FSTATE_FOUND, look for "dev"
    612 			 *  If state == FSTATE_STAR, look for "dev*"
    613 			 *  If state == FSTATE_NOTFOUND, look for "dev0"
    614 			 */
    615 			if (strncasecmp(dev, cfdata[i].cf_name,
    616 					len) == 0 &&
    617 			    (state == FSTATE_FOUND ||
    618 			     (state == FSTATE_STAR &&
    619 			      (cfdata[i].cf_fstate == FSTATE_STAR ||
    620 			       cfdata[i].cf_fstate == FSTATE_DSTAR)) ||
    621 			     (state == FSTATE_NOTFOUND &&
    622 			      cfdata[i].cf_unit == unit &&
    623 			      (cfdata[i].cf_fstate == FSTATE_NOTFOUND ||
    624 			       cfdata[i].cf_fstate == FSTATE_DNOTFOUND)))) {
    625 				if (userconf_more())
    626 					break;
    627 				switch (routine) {
    628 				case UC_CHANGE:
    629 					userconf_change(i);
    630 					break;
    631 				case UC_ENABLE:
    632 					userconf_enable(i);
    633 					break;
    634 				case UC_DISABLE:
    635 					userconf_disable(i);
    636 					break;
    637 				case UC_FIND:
    638 					userconf_pdev(i);
    639 					break;
    640 				default:
    641 					printf("Unknown routine /%c/\n",
    642 					    routine);
    643 					break;
    644 				}
    645 			}
    646 		}
    647 		i++;
    648 	}
    649 
    650 	switch (routine) {
    651 	case UC_CHANGE:
    652 		break;
    653 	default:
    654 		userconf_cnt = -1;
    655 		break;
    656 	}
    657 }
    658 
    659 void
    660 userconf_add_read(prompt, field, dev, len, val)
    661 	char *prompt;
    662 	char field;
    663 	char *dev;
    664 	int len;
    665 	int *val;
    666 {
    667 	int ok = 0;
    668 	int a;
    669 	char *c;
    670 
    671 	*val = -1;
    672 
    673 	while (!ok) {
    674 		printf("%s ? ", prompt);
    675 
    676 		getsn(userconf_argbuf, sizeof(userconf_argbuf));
    677 
    678 		c = userconf_argbuf;
    679 		while (*c == ' ' || *c == '\t' || *c == '\n') c++;
    680 
    681 		if (*c != '\0') {
    682 			if (userconf_number(c, &a) == 0) {
    683 				if (a > userconf_maxdev) {
    684 					printf("Unknown devno (max is %d)\n",
    685 					    userconf_maxdev);
    686 				} else if (strncasecmp(dev,
    687 				    cfdata[a].cf_name, len) != 0 &&
    688 					field == 'a') {
    689 					printf("Not same device type\n");
    690 				} else {
    691 					*val = a;
    692 					ok = 1;
    693 				}
    694 			} else if (*c == '?') {
    695 				userconf_common_dev(dev, len, 0,
    696 				    FSTATE_FOUND, UC_FIND);
    697 			} else if (*c == 'q' || *c == 'Q') {
    698 				ok = 1;
    699 			} else {
    700 				printf("Unknown argument\n");
    701 			}
    702 		} else {
    703 			ok = 1;
    704 		}
    705 	}
    706 }
    707 
    708 int
    709 userconf_parse(cmd)
    710 	char *cmd;
    711 {
    712 	char *c, *v;
    713 	int i = 0, j = 0, k, a;
    714 	short unit, state;
    715 
    716 	c = cmd;
    717 	while (*c == ' ' || *c == '\t')
    718 		c++;
    719 	v = c;
    720 	while (*c != ' ' && *c != '\t' && *c != '\n' && *c != '\0') {
    721 		c++;
    722 		i++;
    723 	}
    724 
    725 	k = -1;
    726 	while (*userconf_cmds[j] != '\0') {
    727 		if (strlen(userconf_cmds[j]) == i) {
    728 			if (strncasecmp(v, userconf_cmds[j], i) == 0)
    729 				k = j;
    730 		}
    731 		j += 2;
    732 	}
    733 
    734 	while (*c == ' ' || *c == '\t' || *c == '\n')
    735 		c++;
    736 
    737 	if (k == -1) {
    738 		if (*v != '\n')
    739 			printf("Unknown command, try help\n");
    740 	} else {
    741 		switch (*userconf_cmds[k+1]) {
    742 		case 'L':
    743 			if (*c == '\0')
    744 				printf("Argument expected\n");
    745 			else if (userconf_number(c, &a) == 0)
    746 				userconf_lines = a;
    747 			else
    748 				printf("Unknown argument\n");
    749 			break;
    750 		case 'b':
    751 			if (*c == '\0')
    752 				printf("8|10|16 expected\n");
    753 			else if (userconf_number(c, &a) == 0) {
    754 				if (a == 8 || a == 10 || a == 16) {
    755 					userconf_base = a;
    756 				} else {
    757 					printf("8|10|16 expected\n");
    758 				}
    759 			} else
    760 				printf("Unknown argument\n");
    761 			break;
    762 		case 'c':
    763 			if (*c == '\0')
    764 				printf("DevNo or Dev expected\n");
    765 			else if (userconf_number(c, &a) == 0)
    766 				userconf_change(a);
    767 			else if (userconf_device(c, &a, &unit, &state) == 0)
    768 				userconf_common_dev(c, a, unit, state, UC_CHANGE);
    769 			else
    770 				printf("Unknown argument\n");
    771 			break;
    772 		case 'd':
    773 			if (*c == '\0')
    774 				printf("Attr, DevNo or Dev expected\n");
    775 			else if (userconf_number(c, &a) == 0)
    776 				userconf_disable(a);
    777 			else if (userconf_device(c, &a, &unit, &state) == 0)
    778 				userconf_common_dev(c, a, unit, state, UC_DISABLE);
    779 			else
    780 				printf("Unknown argument\n");
    781 			break;
    782 		case 'e':
    783 			if (*c == '\0')
    784 				printf("Attr, DevNo or Dev expected\n");
    785 			else if (userconf_number(c, &a) == 0)
    786 				userconf_enable(a);
    787 			else if (userconf_device(c, &a, &unit, &state) == 0)
    788 				userconf_common_dev(c, a, unit, state, UC_ENABLE);
    789 			else
    790 				printf("Unknown argument\n");
    791 			break;
    792 		case 'f':
    793 			if (*c == '\0')
    794 				printf("DevNo or Dev expected\n");
    795 			else if (userconf_number(c, &a) == 0)
    796 				userconf_pdev(a);
    797 			else if (userconf_device(c, &a, &unit, &state) == 0)
    798 				userconf_common_dev(c, a, unit, state, UC_FIND);
    799 			else
    800 				printf("Unknown argument\n");
    801 			break;
    802 		case 'h':
    803 			userconf_help();
    804 			break;
    805 		case 'l':
    806 			if (*c == '\0')
    807 				userconf_list();
    808 			else
    809 				printf("Unknown argument\n");
    810 			break;
    811 		case 'q':
    812 			/* XXX add cmd 'q' eoc */
    813 			userconf_hist_cmd('q');
    814 			userconf_hist_eoc();
    815 			return(-1);
    816 		case 's':
    817 		default:
    818 			printf("Unknown command\n");
    819 			break;
    820 		}
    821 	}
    822 	return(0);
    823 }
    824 
    825 extern void user_config(void);
    826 
    827 void
    828 user_config()
    829 {
    830 	char prompt[] = "uc> ";
    831 
    832 	userconf_init();
    833 	printf("userconf: configure system autoconfiguration:\n");
    834 
    835 	while (1) {
    836 		printf(prompt);
    837 		if (getsn(userconf_cmdbuf, sizeof(userconf_cmdbuf)) > 0 &&
    838 		    userconf_parse(userconf_cmdbuf))
    839 			break;
    840 	}
    841 	printf("Continuing...\n");
    842 }
    843 
    844 /*
    845  * XXX shouldn't this be a common function?
    846  */
    847 static int
    848 getsn(cp, size)
    849 	char *cp;
    850 	int size;
    851 {
    852 	char *lp;
    853 	int c, len;
    854 
    855 	cnpollc(1);
    856 
    857 	lp = cp;
    858 	len = 0;
    859 	for (;;) {
    860 		c = cngetc();
    861 		switch (c) {
    862 		case '\n':
    863 		case '\r':
    864 			printf("\n");
    865 			*lp++ = '\0';
    866 			cnpollc(0);
    867 			return (len);
    868 		case '\b':
    869 		case '\177':
    870 		case '#':
    871 			if (len) {
    872 				--len;
    873 				--lp;
    874 				printf("\b \b");
    875 			}
    876 			continue;
    877 		case '@':
    878 		case 'u'&037:
    879 			len = 0;
    880 			lp = cp;
    881 			printf("\n");
    882 			continue;
    883 		default:
    884 			if (len + 1 >= size || c < ' ') {
    885 				printf("\007");
    886 				continue;
    887 			}
    888 			printf("%c", c);
    889 			++len;
    890 			*lp++ = c;
    891 		}
    892 	}
    893 }
    894