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subr_userconf.c revision 1.10.6.5
      1  1.10.6.5     skrll /*	$NetBSD: subr_userconf.c,v 1.10.6.5 2005/11/10 14:09:45 skrll Exp $	*/
      2       1.1  gmcgarry 
      3       1.1  gmcgarry /*
      4       1.1  gmcgarry  * Copyright (c) 1996 Mats O Jansson <moj (at) stacken.kth.se>
      5       1.1  gmcgarry  * All rights reserved.
      6       1.1  gmcgarry  *
      7       1.1  gmcgarry  * Redistribution and use in source and binary forms, with or without
      8       1.1  gmcgarry  * modification, are permitted provided that the following conditions
      9       1.1  gmcgarry  * are met:
     10       1.1  gmcgarry  * 1. Redistributions of source code must retain the above copyright
     11       1.1  gmcgarry  *    notice, this list of conditions and the following disclaimer.
     12       1.1  gmcgarry  * 2. Redistributions in binary form must reproduce the above copyright
     13       1.1  gmcgarry  *    notice, this list of conditions and the following disclaimer in the
     14       1.1  gmcgarry  *    documentation and/or other materials provided with the distribution.
     15       1.1  gmcgarry  * 3. All advertising materials mentioning features or use of this software
     16       1.1  gmcgarry  *    must display the following acknowledgement:
     17       1.1  gmcgarry  *	This product includes software developed by Mats O Jansson.
     18       1.1  gmcgarry  * 4. The name of the author may not be used to endorse or promote
     19       1.1  gmcgarry  *    products derived from this software without specific prior written
     20       1.1  gmcgarry  *    permission.
     21       1.1  gmcgarry  *
     22       1.1  gmcgarry  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
     23       1.1  gmcgarry  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     24       1.1  gmcgarry  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25       1.1  gmcgarry  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
     26       1.1  gmcgarry  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27       1.1  gmcgarry  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28       1.1  gmcgarry  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29       1.1  gmcgarry  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30       1.1  gmcgarry  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31       1.1  gmcgarry  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32       1.1  gmcgarry  * SUCH DAMAGE.
     33       1.1  gmcgarry  *
     34       1.1  gmcgarry  *	OpenBSD: subr_userconf.c,v 1.19 2000/01/08 23:23:37 d Exp
     35       1.1  gmcgarry  */
     36       1.5     lukem 
     37       1.5     lukem #include <sys/cdefs.h>
     38  1.10.6.5     skrll __KERNEL_RCSID(0, "$NetBSD: subr_userconf.c,v 1.10.6.5 2005/11/10 14:09:45 skrll Exp $");
     39       1.1  gmcgarry 
     40       1.1  gmcgarry #include "opt_userconf.h"
     41       1.1  gmcgarry 
     42       1.1  gmcgarry #include <sys/param.h>
     43       1.1  gmcgarry #include <sys/systm.h>
     44       1.1  gmcgarry #include <sys/device.h>
     45       1.1  gmcgarry #include <sys/malloc.h>
     46       1.1  gmcgarry #include <sys/time.h>
     47       1.1  gmcgarry 
     48       1.1  gmcgarry #include <dev/cons.h>
     49       1.1  gmcgarry 
     50       1.1  gmcgarry extern struct cfdata cfdata[];
     51       1.1  gmcgarry 
     52  1.10.6.5     skrll static int userconf_base = 16;			/* Base for "large" numbers */
     53  1.10.6.5     skrll static int userconf_maxdev = -1;		/* # of used device slots   */
     54  1.10.6.5     skrll static int userconf_totdev = -1;		/* # of device slots        */
     55  1.10.6.5     skrll #if 0
     56  1.10.6.5     skrll static int userconf_maxlocnames = -1;		/* # of locnames            */
     57  1.10.6.5     skrll #endif
     58  1.10.6.5     skrll static int userconf_cnt = -1;			/* Line counter for ...     */
     59  1.10.6.5     skrll static int userconf_lines = 12;			/* ... # of lines per page  */
     60  1.10.6.5     skrll static int userconf_histlen = 0;
     61  1.10.6.5     skrll static int userconf_histcur = 0;
     62  1.10.6.5     skrll static char userconf_history[1024];
     63  1.10.6.5     skrll static int userconf_histsz = sizeof(userconf_history);
     64  1.10.6.5     skrll static char userconf_argbuf[40];		/* Additional input         */
     65  1.10.6.5     skrll static char userconf_cmdbuf[40];		/* Command line             */
     66  1.10.6.5     skrll static char userconf_histbuf[40];
     67       1.1  gmcgarry 
     68  1.10.6.1     skrll static int getsn(char *, int);
     69       1.1  gmcgarry 
     70       1.1  gmcgarry #define UC_CHANGE 'c'
     71       1.1  gmcgarry #define UC_DISABLE 'd'
     72       1.1  gmcgarry #define UC_ENABLE 'e'
     73       1.1  gmcgarry #define UC_FIND 'f'
     74       1.1  gmcgarry #define UC_SHOW 's'
     75       1.1  gmcgarry 
     76  1.10.6.5     skrll static const char *userconf_cmds[] = {
     77       1.1  gmcgarry 	"base",		"b",
     78       1.1  gmcgarry 	"change",	"c",
     79       1.1  gmcgarry 	"disable",	"d",
     80       1.1  gmcgarry 	"enable",	"e",
     81       1.1  gmcgarry 	"exit",		"q",
     82       1.1  gmcgarry 	"find",		"f",
     83       1.1  gmcgarry 	"help",		"h",
     84       1.1  gmcgarry 	"list",		"l",
     85       1.1  gmcgarry 	"lines",	"L",
     86       1.1  gmcgarry 	"quit",		"q",
     87       1.1  gmcgarry 	"?",		"h",
     88       1.1  gmcgarry 	"",		 "",
     89       1.1  gmcgarry };
     90       1.1  gmcgarry 
     91  1.10.6.5     skrll static void
     92  1.10.6.5     skrll userconf_init(void)
     93       1.1  gmcgarry {
     94       1.1  gmcgarry 	int i;
     95       1.1  gmcgarry 	struct cfdata *cf;
     96       1.1  gmcgarry 
     97       1.1  gmcgarry 	i = 0;
     98       1.8   thorpej 	for (cf = cfdata; cf->cf_name; cf++)
     99       1.1  gmcgarry 		i++;
    100       1.1  gmcgarry 
    101       1.1  gmcgarry 	userconf_maxdev = i - 1;
    102       1.1  gmcgarry 	userconf_totdev = i - 1;
    103       1.1  gmcgarry }
    104       1.1  gmcgarry 
    105  1.10.6.5     skrll static int
    106  1.10.6.5     skrll userconf_more(void)
    107       1.1  gmcgarry {
    108       1.1  gmcgarry 	int quit = 0;
    109       1.1  gmcgarry 	char c = '\0';
    110       1.1  gmcgarry 
    111       1.1  gmcgarry 	if (userconf_cnt != -1) {
    112       1.1  gmcgarry 		if (userconf_cnt == userconf_lines) {
    113       1.1  gmcgarry 			printf("-- more --");
    114       1.1  gmcgarry 			c = cngetc();
    115       1.1  gmcgarry 			userconf_cnt = 0;
    116       1.1  gmcgarry 			printf("\r            \r");
    117       1.1  gmcgarry 		}
    118       1.1  gmcgarry 		userconf_cnt++;
    119       1.1  gmcgarry 		if (c == 'q' || c == 'Q')
    120       1.1  gmcgarry 			quit = 1;
    121       1.1  gmcgarry 	}
    122       1.1  gmcgarry 	return (quit);
    123       1.1  gmcgarry }
    124       1.1  gmcgarry 
    125  1.10.6.5     skrll static void
    126  1.10.6.5     skrll userconf_hist_cmd(char cmd)
    127       1.1  gmcgarry {
    128       1.1  gmcgarry 	userconf_histcur = userconf_histlen;
    129       1.1  gmcgarry 	if (userconf_histcur < userconf_histsz) {
    130       1.1  gmcgarry 		userconf_history[userconf_histcur] = cmd;
    131       1.1  gmcgarry 		userconf_histcur++;
    132       1.1  gmcgarry 	}
    133       1.1  gmcgarry }
    134       1.1  gmcgarry 
    135  1.10.6.5     skrll static void
    136  1.10.6.5     skrll userconf_hist_int(int val)
    137       1.1  gmcgarry {
    138  1.10.6.1     skrll 	snprintf(userconf_histbuf, sizeof(userconf_histbuf), " %d", val);
    139       1.1  gmcgarry 	if ((userconf_histcur + strlen(userconf_histbuf)) < userconf_histsz) {
    140       1.4   thorpej 		memcpy(&userconf_history[userconf_histcur],
    141       1.4   thorpej 		      userconf_histbuf,
    142       1.1  gmcgarry 		      strlen(userconf_histbuf));
    143       1.1  gmcgarry 		userconf_histcur = userconf_histcur + strlen(userconf_histbuf);
    144       1.1  gmcgarry 	}
    145       1.1  gmcgarry }
    146       1.1  gmcgarry 
    147  1.10.6.5     skrll static void
    148  1.10.6.5     skrll userconf_hist_eoc(void)
    149       1.1  gmcgarry {
    150       1.1  gmcgarry 	if (userconf_histcur < userconf_histsz) {
    151       1.1  gmcgarry 		userconf_history[userconf_histcur] = '\n';
    152       1.1  gmcgarry 		userconf_histcur++;
    153       1.1  gmcgarry 		userconf_histlen = userconf_histcur;
    154       1.1  gmcgarry 	}
    155       1.1  gmcgarry }
    156       1.1  gmcgarry 
    157  1.10.6.5     skrll static void
    158  1.10.6.5     skrll userconf_pnum(int val)
    159       1.1  gmcgarry {
    160       1.1  gmcgarry 	if (val > -2 && val < 16) {
    161       1.1  gmcgarry 		printf("%d",val);
    162       1.1  gmcgarry 	} else {
    163       1.1  gmcgarry 		switch (userconf_base) {
    164       1.1  gmcgarry 		case 8:
    165       1.1  gmcgarry 			printf("0%o",val);
    166       1.1  gmcgarry 			break;
    167       1.1  gmcgarry 		case 10:
    168       1.1  gmcgarry 			printf("%d",val);
    169       1.1  gmcgarry 			break;
    170       1.1  gmcgarry 		case 16:
    171       1.1  gmcgarry 		default:
    172       1.1  gmcgarry 			printf("0x%x",val);
    173       1.1  gmcgarry 			break;
    174       1.1  gmcgarry 		}
    175       1.1  gmcgarry 	}
    176       1.1  gmcgarry }
    177       1.1  gmcgarry 
    178  1.10.6.5     skrll static void
    179  1.10.6.5     skrll userconf_pdevnam(short dev)
    180       1.1  gmcgarry {
    181       1.1  gmcgarry 	struct cfdata *cd;
    182       1.1  gmcgarry 
    183       1.1  gmcgarry 	cd = &cfdata[dev];
    184       1.8   thorpej 	printf("%s", cd->cf_name);
    185       1.1  gmcgarry 	switch (cd->cf_fstate) {
    186       1.1  gmcgarry 	case FSTATE_NOTFOUND:
    187       1.1  gmcgarry 	case FSTATE_DNOTFOUND:
    188       1.1  gmcgarry 		printf("%d", cd->cf_unit);
    189       1.1  gmcgarry 		break;
    190       1.1  gmcgarry 	case FSTATE_FOUND:
    191       1.1  gmcgarry 		printf("*FOUND*");
    192       1.1  gmcgarry 		break;
    193       1.1  gmcgarry 	case FSTATE_STAR:
    194       1.1  gmcgarry 	case FSTATE_DSTAR:
    195       1.1  gmcgarry 		printf("*");
    196       1.1  gmcgarry 		break;
    197       1.1  gmcgarry 	default:
    198       1.1  gmcgarry 		printf("*UNKNOWN*");
    199       1.1  gmcgarry 		break;
    200       1.1  gmcgarry 	}
    201       1.1  gmcgarry }
    202       1.1  gmcgarry 
    203  1.10.6.5     skrll static void
    204  1.10.6.5     skrll userconf_pdev(short devno)
    205       1.1  gmcgarry {
    206       1.1  gmcgarry 	struct cfdata *cd;
    207       1.7   thorpej 	const struct cfparent *cfp;
    208       1.1  gmcgarry 	int   *l;
    209  1.10.6.5     skrll 	const struct cfiattrdata *ia;
    210  1.10.6.5     skrll 	const struct cflocdesc *ld;
    211  1.10.6.5     skrll 	int nld, i;
    212       1.1  gmcgarry 
    213       1.1  gmcgarry 	if (devno > userconf_maxdev) {
    214       1.1  gmcgarry 		printf("Unknown devno (max is %d)\n", userconf_maxdev);
    215       1.1  gmcgarry 		return;
    216       1.1  gmcgarry 	}
    217       1.1  gmcgarry 
    218       1.1  gmcgarry 	cd = &cfdata[devno];
    219       1.1  gmcgarry 
    220       1.1  gmcgarry 	printf("[%3d] ", devno);
    221       1.1  gmcgarry 	userconf_pdevnam(devno);
    222       1.1  gmcgarry 	printf(" at");
    223       1.7   thorpej 	cfp = cd->cf_pspec;
    224       1.7   thorpej 	if (cfp == NULL)
    225       1.1  gmcgarry 		printf(" root");
    226       1.7   thorpej 	else if (cfp->cfp_parent != NULL && cfp->cfp_unit != -1)
    227       1.7   thorpej 		printf(" %s%d", cfp->cfp_parent, cfp->cfp_unit);
    228       1.7   thorpej 	else
    229       1.7   thorpej 		printf(" %s?", cfp->cfp_parent != NULL ? cfp->cfp_parent
    230       1.7   thorpej 						       : cfp->cfp_iattr);
    231       1.1  gmcgarry 	switch (cd->cf_fstate) {
    232       1.1  gmcgarry 	case FSTATE_NOTFOUND:
    233       1.1  gmcgarry 	case FSTATE_FOUND:
    234       1.1  gmcgarry 	case FSTATE_STAR:
    235       1.1  gmcgarry 		break;
    236       1.1  gmcgarry 	case FSTATE_DNOTFOUND:
    237       1.1  gmcgarry 	case FSTATE_DSTAR:
    238       1.1  gmcgarry 		printf(" disable");
    239       1.1  gmcgarry 		break;
    240       1.1  gmcgarry 	default:
    241       1.1  gmcgarry 		printf(" ???");
    242       1.1  gmcgarry 		break;
    243       1.1  gmcgarry 	}
    244  1.10.6.5     skrll 	if (cfp) {
    245  1.10.6.5     skrll 		l = cd->cf_loc;
    246  1.10.6.5     skrll 		ia = cfiattr_lookup(cfp->cfp_iattr, 0);
    247  1.10.6.5     skrll 		KASSERT(ia);
    248  1.10.6.5     skrll 		ld = ia->ci_locdesc;
    249  1.10.6.5     skrll 		nld = ia->ci_loclen;
    250  1.10.6.5     skrll 		for (i = 0; i < nld; i++) {
    251  1.10.6.5     skrll 			printf(" %s ", ld[i].cld_name);
    252  1.10.6.5     skrll 			if (!ld[i].cld_defaultstr
    253  1.10.6.5     skrll 			    || (l[i] != ld[i].cld_default))
    254  1.10.6.5     skrll 				userconf_pnum(l[i]);
    255  1.10.6.5     skrll 			else
    256  1.10.6.5     skrll 				printf("?");
    257  1.10.6.5     skrll 		}
    258       1.1  gmcgarry 	}
    259       1.1  gmcgarry 	printf("\n");
    260       1.1  gmcgarry }
    261       1.1  gmcgarry 
    262  1.10.6.5     skrll static int
    263  1.10.6.5     skrll userconf_number(char *c, int *val)
    264       1.1  gmcgarry {
    265       1.1  gmcgarry 	u_int num = 0;
    266       1.1  gmcgarry 	int neg = 0;
    267       1.1  gmcgarry 	int base = 10;
    268       1.1  gmcgarry 
    269       1.1  gmcgarry 	if (*c == '-') {
    270       1.1  gmcgarry 		neg = 1;
    271       1.1  gmcgarry 		c++;
    272       1.1  gmcgarry 	}
    273       1.1  gmcgarry 	if (*c == '0') {
    274       1.1  gmcgarry 		base = 8;
    275       1.1  gmcgarry 		c++;
    276       1.1  gmcgarry 		if (*c == 'x' || *c == 'X') {
    277       1.1  gmcgarry 			base = 16;
    278       1.1  gmcgarry 			c++;
    279       1.1  gmcgarry 		}
    280       1.1  gmcgarry 	}
    281       1.1  gmcgarry 	while (*c != '\n' && *c != '\t' && *c != ' ' && *c != '\0') {
    282       1.1  gmcgarry 		u_char cc = *c;
    283       1.1  gmcgarry 
    284       1.1  gmcgarry 		if (cc >= '0' && cc <= '9')
    285       1.1  gmcgarry 			cc = cc - '0';
    286       1.1  gmcgarry 		else if (cc >= 'a' && cc <= 'f')
    287       1.1  gmcgarry 			cc = cc - 'a' + 10;
    288       1.1  gmcgarry 		else if (cc >= 'A' && cc <= 'F')
    289       1.1  gmcgarry 			cc = cc - 'A' + 10;
    290       1.1  gmcgarry 		else
    291       1.1  gmcgarry 			return (-1);
    292       1.1  gmcgarry 
    293       1.1  gmcgarry 		if (cc > base)
    294       1.1  gmcgarry 			return (-1);
    295       1.1  gmcgarry 		num = num * base + cc;
    296       1.1  gmcgarry 		c++;
    297       1.1  gmcgarry 	}
    298       1.1  gmcgarry 
    299       1.1  gmcgarry 	if (neg && num > INT_MAX)	/* overflow */
    300       1.1  gmcgarry 		return (1);
    301       1.1  gmcgarry 	*val = neg ? - num : num;
    302       1.1  gmcgarry 	return (0);
    303       1.1  gmcgarry }
    304       1.1  gmcgarry 
    305  1.10.6.5     skrll static int
    306  1.10.6.5     skrll userconf_device(char *cmd, int *len, short *unit, short *state)
    307       1.1  gmcgarry {
    308       1.1  gmcgarry 	short u = 0, s = FSTATE_FOUND;
    309       1.1  gmcgarry 	int l = 0;
    310       1.1  gmcgarry 	char *c;
    311       1.1  gmcgarry 
    312       1.1  gmcgarry 	c = cmd;
    313       1.1  gmcgarry 	while (*c >= 'a' && *c <= 'z') {
    314       1.1  gmcgarry 		l++;
    315       1.1  gmcgarry 		c++;
    316       1.1  gmcgarry 	}
    317       1.1  gmcgarry 	if (*c == '*') {
    318       1.1  gmcgarry 		s = FSTATE_STAR;
    319       1.1  gmcgarry 		c++;
    320       1.1  gmcgarry 	} else {
    321       1.1  gmcgarry 		while (*c >= '0' && *c <= '9') {
    322       1.1  gmcgarry 			s = FSTATE_NOTFOUND;
    323       1.1  gmcgarry 			u = u*10 + *c - '0';
    324       1.1  gmcgarry 			c++;
    325       1.1  gmcgarry 		}
    326       1.1  gmcgarry 	}
    327       1.1  gmcgarry 	while (*c == ' ' || *c == '\t' || *c == '\n')
    328       1.1  gmcgarry 		c++;
    329       1.1  gmcgarry 
    330       1.1  gmcgarry 	if (*c == '\0') {
    331       1.1  gmcgarry 		*len = l;
    332       1.1  gmcgarry 		*unit = u;
    333       1.1  gmcgarry 		*state = s;
    334       1.1  gmcgarry 		return(0);
    335       1.1  gmcgarry 	}
    336       1.1  gmcgarry 
    337       1.1  gmcgarry 	return(-1);
    338       1.1  gmcgarry }
    339       1.1  gmcgarry 
    340  1.10.6.5     skrll static void
    341  1.10.6.5     skrll userconf_modify(const struct cflocdesc *item, int *val)
    342       1.1  gmcgarry {
    343       1.1  gmcgarry 	int ok = 0;
    344       1.1  gmcgarry 	int a;
    345       1.1  gmcgarry 	char *c;
    346       1.1  gmcgarry 
    347       1.1  gmcgarry 	while (!ok) {
    348  1.10.6.5     skrll 		printf("%s [", item->cld_name);
    349  1.10.6.5     skrll 		if (item->cld_defaultstr && (*val == item->cld_default))
    350  1.10.6.5     skrll 			printf("?");
    351  1.10.6.5     skrll 		else
    352  1.10.6.5     skrll 			userconf_pnum(*val);
    353       1.1  gmcgarry 		printf("] ? ");
    354       1.1  gmcgarry 
    355      1.10    simonb 		getsn(userconf_argbuf, sizeof(userconf_argbuf));
    356       1.1  gmcgarry 
    357       1.1  gmcgarry 		c = userconf_argbuf;
    358       1.1  gmcgarry 		while (*c == ' ' || *c == '\t' || *c == '\n') c++;
    359       1.1  gmcgarry 
    360       1.1  gmcgarry 		if (*c != '\0') {
    361  1.10.6.5     skrll 			if (*c == '?') {
    362  1.10.6.5     skrll 				if (item->cld_defaultstr) {
    363  1.10.6.5     skrll 					*val = item->cld_default;
    364  1.10.6.5     skrll 					ok = 1;
    365  1.10.6.5     skrll 				} else
    366  1.10.6.5     skrll 					printf("No default\n");
    367  1.10.6.5     skrll 			} else if (userconf_number(c, &a) == 0) {
    368       1.1  gmcgarry 				*val = a;
    369       1.1  gmcgarry 				ok = 1;
    370       1.1  gmcgarry 			} else {
    371       1.1  gmcgarry 				printf("Unknown argument\n");
    372       1.1  gmcgarry 			}
    373       1.1  gmcgarry 		} else {
    374       1.1  gmcgarry 			ok = 1;
    375       1.1  gmcgarry 		}
    376       1.1  gmcgarry 	}
    377       1.1  gmcgarry }
    378       1.1  gmcgarry 
    379  1.10.6.5     skrll static void
    380  1.10.6.5     skrll userconf_change(int devno)
    381       1.1  gmcgarry {
    382       1.1  gmcgarry 	struct cfdata *cd;
    383       1.1  gmcgarry 	char c = '\0';
    384       1.1  gmcgarry 	int   *l;
    385       1.1  gmcgarry 	int   ln;
    386  1.10.6.5     skrll 	const struct cfiattrdata *ia;
    387  1.10.6.5     skrll 	const struct cflocdesc *ld;
    388  1.10.6.5     skrll 	int nld;
    389       1.1  gmcgarry 
    390       1.1  gmcgarry 	if (devno <=  userconf_maxdev) {
    391       1.1  gmcgarry 
    392       1.1  gmcgarry 		userconf_pdev(devno);
    393       1.1  gmcgarry 
    394       1.1  gmcgarry 		while (c != 'y' && c != 'Y' && c != 'n' && c != 'N') {
    395       1.1  gmcgarry 			printf("change (y/n) ?");
    396       1.1  gmcgarry 			c = cngetc();
    397       1.1  gmcgarry 			printf("\n");
    398       1.1  gmcgarry 		}
    399       1.1  gmcgarry 
    400       1.1  gmcgarry 		if (c == 'y' || c == 'Y') {
    401  1.10.6.4     skrll 
    402       1.1  gmcgarry 			/* XXX add cmd 'c' <devno> */
    403       1.1  gmcgarry 			userconf_hist_cmd('c');
    404       1.1  gmcgarry 			userconf_hist_int(devno);
    405  1.10.6.4     skrll 
    406       1.1  gmcgarry 			cd = &cfdata[devno];
    407       1.1  gmcgarry 			l = cd->cf_loc;
    408  1.10.6.5     skrll 			ia = cfiattr_lookup(cd->cf_pspec->cfp_iattr, 0);
    409  1.10.6.5     skrll 			KASSERT(ia);
    410  1.10.6.5     skrll 			ld = ia->ci_locdesc;
    411  1.10.6.5     skrll 			nld = ia->ci_loclen;
    412       1.1  gmcgarry 
    413  1.10.6.5     skrll 			for (ln = 0; ln < nld; ln++)
    414       1.1  gmcgarry 			{
    415  1.10.6.5     skrll 				userconf_modify(&ld[ln], l);
    416  1.10.6.4     skrll 
    417       1.1  gmcgarry 				/* XXX add *l */
    418       1.1  gmcgarry 				userconf_hist_int(*l);
    419  1.10.6.4     skrll 
    420       1.1  gmcgarry 				l++;
    421       1.1  gmcgarry 			}
    422       1.1  gmcgarry 
    423       1.1  gmcgarry 			printf("[%3d] ", devno);
    424       1.1  gmcgarry 			userconf_pdevnam(devno);
    425       1.1  gmcgarry 			printf(" changed\n");
    426       1.1  gmcgarry 			userconf_pdev(devno);
    427       1.1  gmcgarry 
    428       1.1  gmcgarry 			/* XXX add eoc */
    429       1.1  gmcgarry 			userconf_hist_eoc();
    430  1.10.6.4     skrll 
    431       1.1  gmcgarry 		}
    432       1.1  gmcgarry 	} else {
    433       1.1  gmcgarry 		printf("Unknown devno (max is %d)\n", userconf_maxdev);
    434       1.1  gmcgarry 	}
    435       1.1  gmcgarry }
    436       1.1  gmcgarry 
    437  1.10.6.5     skrll static void
    438  1.10.6.5     skrll userconf_disable(int devno)
    439       1.1  gmcgarry {
    440       1.1  gmcgarry 	int done = 0;
    441       1.1  gmcgarry 
    442       1.1  gmcgarry 	if (devno <= userconf_maxdev) {
    443       1.1  gmcgarry 		switch (cfdata[devno].cf_fstate) {
    444       1.1  gmcgarry 		case FSTATE_NOTFOUND:
    445       1.1  gmcgarry 			cfdata[devno].cf_fstate = FSTATE_DNOTFOUND;
    446       1.1  gmcgarry 			break;
    447       1.1  gmcgarry 		case FSTATE_STAR:
    448       1.1  gmcgarry 			cfdata[devno].cf_fstate = FSTATE_DSTAR;
    449       1.1  gmcgarry 			break;
    450       1.1  gmcgarry 		case FSTATE_DNOTFOUND:
    451       1.1  gmcgarry 		case FSTATE_DSTAR:
    452       1.1  gmcgarry 			done = 1;
    453       1.1  gmcgarry 			break;
    454       1.1  gmcgarry 		default:
    455       1.1  gmcgarry 			printf("Error unknown state\n");
    456       1.1  gmcgarry 			break;
    457       1.1  gmcgarry 		}
    458       1.1  gmcgarry 
    459       1.1  gmcgarry 		printf("[%3d] ", devno);
    460       1.1  gmcgarry 		userconf_pdevnam(devno);
    461       1.1  gmcgarry 		if (done) {
    462       1.1  gmcgarry 			printf(" already");
    463       1.1  gmcgarry 		} else {
    464       1.1  gmcgarry 			/* XXX add cmd 'd' <devno> eoc */
    465       1.1  gmcgarry 			userconf_hist_cmd('d');
    466       1.1  gmcgarry 			userconf_hist_int(devno);
    467       1.1  gmcgarry 			userconf_hist_eoc();
    468       1.1  gmcgarry 		}
    469       1.1  gmcgarry 		printf(" disabled\n");
    470       1.1  gmcgarry 	} else {
    471       1.1  gmcgarry 		printf("Unknown devno (max is %d)\n", userconf_maxdev);
    472       1.1  gmcgarry 	}
    473       1.1  gmcgarry }
    474       1.1  gmcgarry 
    475  1.10.6.5     skrll static void
    476  1.10.6.5     skrll userconf_enable(int devno)
    477       1.1  gmcgarry {
    478       1.1  gmcgarry 	int done = 0;
    479  1.10.6.4     skrll 
    480       1.1  gmcgarry 	if (devno <= userconf_maxdev) {
    481       1.1  gmcgarry 		switch (cfdata[devno].cf_fstate) {
    482       1.1  gmcgarry 		case FSTATE_DNOTFOUND:
    483       1.1  gmcgarry 			cfdata[devno].cf_fstate = FSTATE_NOTFOUND;
    484       1.1  gmcgarry 			break;
    485       1.1  gmcgarry 		case FSTATE_DSTAR:
    486       1.1  gmcgarry 			cfdata[devno].cf_fstate = FSTATE_STAR;
    487       1.1  gmcgarry 			break;
    488       1.1  gmcgarry 		case FSTATE_NOTFOUND:
    489       1.1  gmcgarry 		case FSTATE_STAR:
    490       1.1  gmcgarry 			done = 1;
    491       1.1  gmcgarry 			break;
    492       1.1  gmcgarry 		default:
    493       1.1  gmcgarry 			printf("Error unknown state\n");
    494       1.1  gmcgarry 			break;
    495       1.1  gmcgarry 		}
    496       1.1  gmcgarry 
    497       1.1  gmcgarry 		printf("[%3d] ", devno);
    498       1.1  gmcgarry 		userconf_pdevnam(devno);
    499       1.1  gmcgarry 		if (done) {
    500       1.1  gmcgarry 			printf(" already");
    501       1.1  gmcgarry 		} else {
    502       1.1  gmcgarry 			/* XXX add cmd 'e' <devno> eoc */
    503       1.1  gmcgarry 			userconf_hist_cmd('d');
    504       1.1  gmcgarry 			userconf_hist_int(devno);
    505       1.1  gmcgarry 			userconf_hist_eoc();
    506       1.1  gmcgarry 		}
    507       1.1  gmcgarry 		printf(" enabled\n");
    508       1.1  gmcgarry 	} else {
    509       1.1  gmcgarry 		printf("Unknown devno (max is %d)\n", userconf_maxdev);
    510       1.1  gmcgarry 	}
    511       1.1  gmcgarry }
    512       1.1  gmcgarry 
    513  1.10.6.5     skrll static void
    514  1.10.6.5     skrll userconf_help(void)
    515       1.1  gmcgarry {
    516       1.1  gmcgarry 	int j = 0, k;
    517       1.1  gmcgarry 
    518       1.1  gmcgarry 	printf("command   args                description\n");
    519       1.1  gmcgarry 	while (*userconf_cmds[j] != '\0') {
    520       1.1  gmcgarry 		printf(userconf_cmds[j]);
    521       1.1  gmcgarry 		k = strlen(userconf_cmds[j]);
    522       1.1  gmcgarry 		while (k < 10) {
    523       1.1  gmcgarry 			printf(" ");
    524       1.1  gmcgarry 			k++;
    525       1.1  gmcgarry 		}
    526       1.1  gmcgarry 		switch (*userconf_cmds[j+1]) {
    527       1.1  gmcgarry 		case 'L':
    528       1.1  gmcgarry 			printf("[count]             number of lines before more");
    529       1.1  gmcgarry 			break;
    530       1.1  gmcgarry 		case 'b':
    531       1.1  gmcgarry 			printf("8|10|16             base on large numbers");
    532       1.1  gmcgarry 			break;
    533       1.1  gmcgarry 		case 'c':
    534       1.1  gmcgarry 			printf("devno|dev           change devices");
    535       1.1  gmcgarry 			break;
    536       1.1  gmcgarry 		case 'd':
    537       1.1  gmcgarry 			printf("devno|dev           disable devices");
    538       1.1  gmcgarry 			break;
    539       1.1  gmcgarry 		case 'e':
    540       1.1  gmcgarry 			printf("devno|dev           enable devices");
    541       1.1  gmcgarry 			break;
    542       1.1  gmcgarry 		case 'f':
    543       1.1  gmcgarry 			printf("devno|dev           find devices");
    544       1.1  gmcgarry 			break;
    545       1.1  gmcgarry 		case 'h':
    546       1.1  gmcgarry 			printf("                    this message");
    547       1.1  gmcgarry 			break;
    548       1.1  gmcgarry 		case 'l':
    549       1.1  gmcgarry 			printf("                    list configuration");
    550       1.1  gmcgarry 			break;
    551       1.1  gmcgarry 		case 'q':
    552       1.1  gmcgarry 			printf("                    leave userconf");
    553       1.1  gmcgarry 			break;
    554       1.1  gmcgarry 		default:
    555       1.1  gmcgarry 			printf("                    don't know");
    556       1.1  gmcgarry 			break;
    557       1.1  gmcgarry 		}
    558       1.1  gmcgarry 		printf("\n");
    559       1.1  gmcgarry 		j += 2;
    560       1.1  gmcgarry 	}
    561       1.1  gmcgarry }
    562       1.1  gmcgarry 
    563  1.10.6.5     skrll static void
    564  1.10.6.5     skrll userconf_list(void)
    565       1.1  gmcgarry {
    566       1.1  gmcgarry 	int i = 0;
    567       1.1  gmcgarry 
    568       1.1  gmcgarry 	userconf_cnt = 0;
    569       1.1  gmcgarry 
    570       1.9   thorpej 	while (cfdata[i].cf_name != NULL) {
    571       1.1  gmcgarry 		if (userconf_more())
    572       1.1  gmcgarry 			break;
    573       1.1  gmcgarry 		userconf_pdev(i++);
    574       1.1  gmcgarry 	}
    575       1.1  gmcgarry 
    576       1.1  gmcgarry 	userconf_cnt = -1;
    577       1.1  gmcgarry }
    578       1.1  gmcgarry 
    579  1.10.6.5     skrll static void
    580  1.10.6.5     skrll userconf_common_dev(char *dev, int len, short unit, short state, char routine)
    581       1.1  gmcgarry {
    582       1.1  gmcgarry 	int i = 0;
    583       1.1  gmcgarry 
    584       1.1  gmcgarry 	switch (routine) {
    585       1.1  gmcgarry 	case UC_CHANGE:
    586       1.1  gmcgarry 		break;
    587       1.1  gmcgarry 	default:
    588       1.1  gmcgarry 		userconf_cnt = 0;
    589       1.1  gmcgarry 		break;
    590       1.1  gmcgarry 	}
    591       1.1  gmcgarry 
    592       1.9   thorpej 	while (cfdata[i].cf_name != NULL) {
    593       1.8   thorpej 		if (strlen(cfdata[i].cf_name) == len) {
    594       1.1  gmcgarry 
    595       1.1  gmcgarry 			/*
    596       1.1  gmcgarry 			 * Ok, if device name is correct
    597       1.1  gmcgarry 			 *  If state == FSTATE_FOUND, look for "dev"
    598       1.1  gmcgarry 			 *  If state == FSTATE_STAR, look for "dev*"
    599       1.1  gmcgarry 			 *  If state == FSTATE_NOTFOUND, look for "dev0"
    600       1.1  gmcgarry 			 */
    601       1.8   thorpej 			if (strncasecmp(dev, cfdata[i].cf_name,
    602       1.1  gmcgarry 					len) == 0 &&
    603       1.1  gmcgarry 			    (state == FSTATE_FOUND ||
    604       1.1  gmcgarry 			     (state == FSTATE_STAR &&
    605       1.1  gmcgarry 			      (cfdata[i].cf_fstate == FSTATE_STAR ||
    606       1.1  gmcgarry 			       cfdata[i].cf_fstate == FSTATE_DSTAR)) ||
    607       1.1  gmcgarry 			     (state == FSTATE_NOTFOUND &&
    608       1.1  gmcgarry 			      cfdata[i].cf_unit == unit &&
    609       1.1  gmcgarry 			      (cfdata[i].cf_fstate == FSTATE_NOTFOUND ||
    610       1.1  gmcgarry 			       cfdata[i].cf_fstate == FSTATE_DNOTFOUND)))) {
    611       1.1  gmcgarry 				if (userconf_more())
    612       1.1  gmcgarry 					break;
    613       1.1  gmcgarry 				switch (routine) {
    614       1.1  gmcgarry 				case UC_CHANGE:
    615       1.1  gmcgarry 					userconf_change(i);
    616       1.1  gmcgarry 					break;
    617       1.1  gmcgarry 				case UC_ENABLE:
    618       1.1  gmcgarry 					userconf_enable(i);
    619       1.1  gmcgarry 					break;
    620       1.1  gmcgarry 				case UC_DISABLE:
    621       1.1  gmcgarry 					userconf_disable(i);
    622       1.1  gmcgarry 					break;
    623       1.1  gmcgarry 				case UC_FIND:
    624       1.1  gmcgarry 					userconf_pdev(i);
    625       1.1  gmcgarry 					break;
    626       1.1  gmcgarry 				default:
    627       1.1  gmcgarry 					printf("Unknown routine /%c/\n",
    628       1.1  gmcgarry 					    routine);
    629       1.1  gmcgarry 					break;
    630       1.1  gmcgarry 				}
    631       1.1  gmcgarry 			}
    632       1.1  gmcgarry 		}
    633       1.1  gmcgarry 		i++;
    634       1.1  gmcgarry 	}
    635       1.1  gmcgarry 
    636       1.1  gmcgarry 	switch (routine) {
    637       1.1  gmcgarry 	case UC_CHANGE:
    638       1.1  gmcgarry 		break;
    639       1.1  gmcgarry 	default:
    640       1.1  gmcgarry 		userconf_cnt = -1;
    641       1.1  gmcgarry 		break;
    642       1.1  gmcgarry 	}
    643       1.1  gmcgarry }
    644       1.1  gmcgarry 
    645  1.10.6.5     skrll #if 0
    646  1.10.6.5     skrll static void
    647  1.10.6.5     skrll userconf_add_read(char *prompt, char field, char *dev, int len, int *val)
    648       1.1  gmcgarry {
    649       1.1  gmcgarry 	int ok = 0;
    650       1.1  gmcgarry 	int a;
    651       1.1  gmcgarry 	char *c;
    652       1.1  gmcgarry 
    653       1.1  gmcgarry 	*val = -1;
    654       1.1  gmcgarry 
    655       1.1  gmcgarry 	while (!ok) {
    656       1.1  gmcgarry 		printf("%s ? ", prompt);
    657       1.1  gmcgarry 
    658      1.10    simonb 		getsn(userconf_argbuf, sizeof(userconf_argbuf));
    659       1.1  gmcgarry 
    660       1.1  gmcgarry 		c = userconf_argbuf;
    661       1.1  gmcgarry 		while (*c == ' ' || *c == '\t' || *c == '\n') c++;
    662       1.1  gmcgarry 
    663       1.1  gmcgarry 		if (*c != '\0') {
    664       1.1  gmcgarry 			if (userconf_number(c, &a) == 0) {
    665       1.1  gmcgarry 				if (a > userconf_maxdev) {
    666       1.1  gmcgarry 					printf("Unknown devno (max is %d)\n",
    667       1.1  gmcgarry 					    userconf_maxdev);
    668       1.1  gmcgarry 				} else if (strncasecmp(dev,
    669       1.8   thorpej 				    cfdata[a].cf_name, len) != 0 &&
    670       1.1  gmcgarry 					field == 'a') {
    671       1.1  gmcgarry 					printf("Not same device type\n");
    672       1.1  gmcgarry 				} else {
    673       1.1  gmcgarry 					*val = a;
    674       1.1  gmcgarry 					ok = 1;
    675       1.1  gmcgarry 				}
    676       1.1  gmcgarry 			} else if (*c == '?') {
    677       1.1  gmcgarry 				userconf_common_dev(dev, len, 0,
    678       1.1  gmcgarry 				    FSTATE_FOUND, UC_FIND);
    679       1.1  gmcgarry 			} else if (*c == 'q' || *c == 'Q') {
    680       1.1  gmcgarry 				ok = 1;
    681       1.1  gmcgarry 			} else {
    682       1.1  gmcgarry 				printf("Unknown argument\n");
    683       1.1  gmcgarry 			}
    684       1.1  gmcgarry 		} else {
    685       1.1  gmcgarry 			ok = 1;
    686       1.1  gmcgarry 		}
    687       1.1  gmcgarry 	}
    688       1.1  gmcgarry }
    689  1.10.6.5     skrll #endif /* 0 */
    690       1.1  gmcgarry 
    691  1.10.6.5     skrll static int
    692  1.10.6.5     skrll userconf_parse(char *cmd)
    693       1.1  gmcgarry {
    694       1.1  gmcgarry 	char *c, *v;
    695       1.1  gmcgarry 	int i = 0, j = 0, k, a;
    696       1.1  gmcgarry 	short unit, state;
    697       1.1  gmcgarry 
    698       1.1  gmcgarry 	c = cmd;
    699       1.1  gmcgarry 	while (*c == ' ' || *c == '\t')
    700       1.1  gmcgarry 		c++;
    701       1.1  gmcgarry 	v = c;
    702       1.1  gmcgarry 	while (*c != ' ' && *c != '\t' && *c != '\n' && *c != '\0') {
    703       1.1  gmcgarry 		c++;
    704       1.1  gmcgarry 		i++;
    705       1.1  gmcgarry 	}
    706       1.1  gmcgarry 
    707       1.1  gmcgarry 	k = -1;
    708       1.1  gmcgarry 	while (*userconf_cmds[j] != '\0') {
    709       1.1  gmcgarry 		if (strlen(userconf_cmds[j]) == i) {
    710       1.1  gmcgarry 			if (strncasecmp(v, userconf_cmds[j], i) == 0)
    711       1.1  gmcgarry 				k = j;
    712       1.1  gmcgarry 		}
    713       1.1  gmcgarry 		j += 2;
    714       1.1  gmcgarry 	}
    715       1.1  gmcgarry 
    716       1.1  gmcgarry 	while (*c == ' ' || *c == '\t' || *c == '\n')
    717       1.1  gmcgarry 		c++;
    718       1.1  gmcgarry 
    719       1.1  gmcgarry 	if (k == -1) {
    720       1.1  gmcgarry 		if (*v != '\n')
    721       1.1  gmcgarry 			printf("Unknown command, try help\n");
    722       1.1  gmcgarry 	} else {
    723       1.1  gmcgarry 		switch (*userconf_cmds[k+1]) {
    724       1.1  gmcgarry 		case 'L':
    725       1.1  gmcgarry 			if (*c == '\0')
    726       1.1  gmcgarry 				printf("Argument expected\n");
    727       1.1  gmcgarry 			else if (userconf_number(c, &a) == 0)
    728       1.1  gmcgarry 				userconf_lines = a;
    729       1.1  gmcgarry 			else
    730       1.1  gmcgarry 				printf("Unknown argument\n");
    731       1.1  gmcgarry 			break;
    732       1.1  gmcgarry 		case 'b':
    733       1.1  gmcgarry 			if (*c == '\0')
    734       1.1  gmcgarry 				printf("8|10|16 expected\n");
    735       1.1  gmcgarry 			else if (userconf_number(c, &a) == 0) {
    736       1.1  gmcgarry 				if (a == 8 || a == 10 || a == 16) {
    737       1.1  gmcgarry 					userconf_base = a;
    738       1.1  gmcgarry 				} else {
    739       1.1  gmcgarry 					printf("8|10|16 expected\n");
    740       1.1  gmcgarry 				}
    741       1.1  gmcgarry 			} else
    742       1.1  gmcgarry 				printf("Unknown argument\n");
    743       1.1  gmcgarry 			break;
    744       1.1  gmcgarry 		case 'c':
    745       1.1  gmcgarry 			if (*c == '\0')
    746       1.1  gmcgarry 				printf("DevNo or Dev expected\n");
    747       1.1  gmcgarry 			else if (userconf_number(c, &a) == 0)
    748       1.1  gmcgarry 				userconf_change(a);
    749       1.1  gmcgarry 			else if (userconf_device(c, &a, &unit, &state) == 0)
    750       1.1  gmcgarry 				userconf_common_dev(c, a, unit, state, UC_CHANGE);
    751       1.1  gmcgarry 			else
    752       1.1  gmcgarry 				printf("Unknown argument\n");
    753       1.1  gmcgarry 			break;
    754       1.1  gmcgarry 		case 'd':
    755       1.1  gmcgarry 			if (*c == '\0')
    756       1.1  gmcgarry 				printf("Attr, DevNo or Dev expected\n");
    757       1.1  gmcgarry 			else if (userconf_number(c, &a) == 0)
    758       1.1  gmcgarry 				userconf_disable(a);
    759       1.1  gmcgarry 			else if (userconf_device(c, &a, &unit, &state) == 0)
    760       1.1  gmcgarry 				userconf_common_dev(c, a, unit, state, UC_DISABLE);
    761       1.1  gmcgarry 			else
    762       1.1  gmcgarry 				printf("Unknown argument\n");
    763       1.1  gmcgarry 			break;
    764       1.1  gmcgarry 		case 'e':
    765       1.1  gmcgarry 			if (*c == '\0')
    766       1.1  gmcgarry 				printf("Attr, DevNo or Dev expected\n");
    767       1.1  gmcgarry 			else if (userconf_number(c, &a) == 0)
    768       1.1  gmcgarry 				userconf_enable(a);
    769       1.1  gmcgarry 			else if (userconf_device(c, &a, &unit, &state) == 0)
    770       1.1  gmcgarry 				userconf_common_dev(c, a, unit, state, UC_ENABLE);
    771       1.1  gmcgarry 			else
    772       1.1  gmcgarry 				printf("Unknown argument\n");
    773       1.1  gmcgarry 			break;
    774       1.1  gmcgarry 		case 'f':
    775       1.1  gmcgarry 			if (*c == '\0')
    776       1.1  gmcgarry 				printf("DevNo or Dev expected\n");
    777       1.1  gmcgarry 			else if (userconf_number(c, &a) == 0)
    778       1.1  gmcgarry 				userconf_pdev(a);
    779       1.1  gmcgarry 			else if (userconf_device(c, &a, &unit, &state) == 0)
    780       1.1  gmcgarry 				userconf_common_dev(c, a, unit, state, UC_FIND);
    781       1.1  gmcgarry 			else
    782       1.1  gmcgarry 				printf("Unknown argument\n");
    783       1.1  gmcgarry 			break;
    784       1.1  gmcgarry 		case 'h':
    785       1.1  gmcgarry 			userconf_help();
    786       1.1  gmcgarry 			break;
    787       1.1  gmcgarry 		case 'l':
    788       1.1  gmcgarry 			if (*c == '\0')
    789       1.1  gmcgarry 				userconf_list();
    790       1.1  gmcgarry 			else
    791       1.1  gmcgarry 				printf("Unknown argument\n");
    792       1.1  gmcgarry 			break;
    793       1.1  gmcgarry 		case 'q':
    794       1.1  gmcgarry 			/* XXX add cmd 'q' eoc */
    795       1.1  gmcgarry 			userconf_hist_cmd('q');
    796       1.1  gmcgarry 			userconf_hist_eoc();
    797       1.1  gmcgarry 			return(-1);
    798       1.1  gmcgarry 		case 's':
    799       1.1  gmcgarry 		default:
    800       1.1  gmcgarry 			printf("Unknown command\n");
    801       1.1  gmcgarry 			break;
    802       1.1  gmcgarry 		}
    803       1.1  gmcgarry 	}
    804       1.1  gmcgarry 	return(0);
    805       1.1  gmcgarry }
    806       1.1  gmcgarry 
    807  1.10.6.1     skrll extern void user_config(void);
    808       1.1  gmcgarry 
    809       1.1  gmcgarry void
    810  1.10.6.5     skrll user_config(void)
    811       1.1  gmcgarry {
    812       1.1  gmcgarry 	char prompt[] = "uc> ";
    813       1.1  gmcgarry 
    814       1.1  gmcgarry 	userconf_init();
    815       1.1  gmcgarry 	printf("userconf: configure system autoconfiguration:\n");
    816       1.1  gmcgarry 
    817       1.1  gmcgarry 	while (1) {
    818       1.1  gmcgarry 		printf(prompt);
    819       1.1  gmcgarry 		if (getsn(userconf_cmdbuf, sizeof(userconf_cmdbuf)) > 0 &&
    820       1.1  gmcgarry 		    userconf_parse(userconf_cmdbuf))
    821       1.1  gmcgarry 			break;
    822       1.1  gmcgarry 	}
    823       1.1  gmcgarry 	printf("Continuing...\n");
    824       1.1  gmcgarry }
    825       1.1  gmcgarry 
    826       1.1  gmcgarry /*
    827       1.1  gmcgarry  * XXX shouldn't this be a common function?
    828       1.1  gmcgarry  */
    829       1.1  gmcgarry static int
    830  1.10.6.5     skrll getsn(char *cp, int size)
    831       1.1  gmcgarry {
    832       1.1  gmcgarry 	char *lp;
    833       1.1  gmcgarry 	int c, len;
    834       1.1  gmcgarry 
    835       1.1  gmcgarry 	cnpollc(1);
    836       1.1  gmcgarry 
    837       1.1  gmcgarry 	lp = cp;
    838       1.1  gmcgarry 	len = 0;
    839       1.1  gmcgarry 	for (;;) {
    840       1.1  gmcgarry 		c = cngetc();
    841       1.1  gmcgarry 		switch (c) {
    842       1.1  gmcgarry 		case '\n':
    843       1.1  gmcgarry 		case '\r':
    844       1.1  gmcgarry 			printf("\n");
    845       1.1  gmcgarry 			*lp++ = '\0';
    846       1.1  gmcgarry 			cnpollc(0);
    847       1.1  gmcgarry 			return (len);
    848       1.1  gmcgarry 		case '\b':
    849       1.1  gmcgarry 		case '\177':
    850       1.1  gmcgarry 		case '#':
    851       1.1  gmcgarry 			if (len) {
    852       1.1  gmcgarry 				--len;
    853       1.1  gmcgarry 				--lp;
    854       1.1  gmcgarry 				printf("\b \b");
    855       1.1  gmcgarry 			}
    856       1.1  gmcgarry 			continue;
    857       1.1  gmcgarry 		case '@':
    858       1.1  gmcgarry 		case 'u'&037:
    859       1.1  gmcgarry 			len = 0;
    860       1.1  gmcgarry 			lp = cp;
    861       1.1  gmcgarry 			printf("\n");
    862       1.1  gmcgarry 			continue;
    863       1.1  gmcgarry 		default:
    864       1.1  gmcgarry 			if (len + 1 >= size || c < ' ') {
    865       1.1  gmcgarry 				printf("\007");
    866       1.1  gmcgarry 				continue;
    867       1.1  gmcgarry 			}
    868       1.1  gmcgarry 			printf("%c", c);
    869       1.1  gmcgarry 			++len;
    870       1.1  gmcgarry 			*lp++ = c;
    871       1.1  gmcgarry 		}
    872       1.1  gmcgarry 	}
    873       1.1  gmcgarry }
    874