mkoptions.c revision 55603
112772Speter/* 212772Speter * Copyright (c) 1995 Peter Wemm 312772Speter * Copyright (c) 1980, 1993 412772Speter * The Regents of the University of California. All rights reserved. 512772Speter * 612772Speter * Redistribution and use in source and binary forms, with or without 712772Speter * modification, are permitted provided that the following conditions 812772Speter * are met: 912772Speter * 1. Redistributions of source code must retain the above copyright 1012772Speter * notice, this list of conditions and the following disclaimer. 1112772Speter * 2. Redistributions in binary form must reproduce the above copyright 1212772Speter * notice, this list of conditions and the following disclaimer in the 1312772Speter * documentation and/or other materials provided with the distribution. 1412772Speter * 3. All advertising materials mentioning features or use of this software 1512772Speter * must display the following acknowledgement: 1612772Speter * This product includes software developed by the University of 1712772Speter * California, Berkeley and its contributors. 1812772Speter * 4. Neither the name of the University nor the names of its contributors 1912772Speter * may be used to endorse or promote products derived from this software 2012772Speter * without specific prior written permission. 2112772Speter * 2212772Speter * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2312772Speter * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2412772Speter * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2512772Speter * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2612772Speter * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2712772Speter * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2812772Speter * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2912772Speter * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3012772Speter * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3112772Speter * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3212772Speter * SUCH DAMAGE. 3312772Speter */ 3412772Speter 3512772Speter#ifndef lint 3629451Scharnier#if 0 3712772Speterstatic char sccsid[] = "@(#)mkheaders.c 8.1 (Berkeley) 6/6/93"; 3829451Scharnier#endif 3929451Scharnierstatic const char rcsid[] = 4050479Speter "$FreeBSD: head/usr.sbin/config/mkoptions.c 55603 2000-01-08 14:34:50Z bde $"; 4112772Speter#endif /* not lint */ 4212772Speter 4312772Speter/* 4412772Speter * Make all the .h files for the optional entries 4512772Speter */ 4612772Speter 4729451Scharnier#include <ctype.h> 4829451Scharnier#include <err.h> 4912772Speter#include <stdio.h> 5020458Sjoerg#include <string.h> 5112772Speter#include "config.h" 5216073Sphk#include "y.tab.h" 5312772Speter 5437578Sbdestatic struct users { 5537578Sbde int u_default; 5637578Sbde int u_min; 5737578Sbde int u_max; 5837578Sbde} users[] = { 5937578Sbde { 8, 2, 512 }, /* MACHINE_I386 */ 6037578Sbde { 8, 2, 512 }, /* MACHINE_PC98 */ 6137578Sbde { 8, 2, 512 }, /* MACHINE_ALPHA */ 6237578Sbde}; 6337578Sbde#define NUSERS (sizeof (users) / sizeof (users[0])) 6437578Sbde 6545744Speterstatic char *lower __P((char *)); 6645744Speterstatic void read_options __P((void)); 6745744Speterstatic void do_option __P((char *)); 6845744Speterstatic char *tooption __P((char *)); 6920458Sjoerg 7029451Scharniervoid 7112772Speteroptions() 7212772Speter{ 7337578Sbde char buf[40]; 7437578Sbde struct cputype *cp; 7512772Speter struct opt_list *ol; 7637578Sbde struct opt *op; 7737578Sbde struct users *up; 7812772Speter 7937578Sbde /* Fake the cpu types as options. */ 8037578Sbde for (cp = cputype; cp != NULL; cp = cp->cpu_next) { 8137578Sbde op = (struct opt *)malloc(sizeof(*op)); 8212772Speter memset(op, 0, sizeof(*op)); 8320458Sjoerg op->op_name = ns(cp->cpu_name); 8412772Speter op->op_next = opt; 8512772Speter opt = op; 8612772Speter } 8712772Speter 8837578Sbde /* Initialize `maxusers'. */ 8937578Sbde if ((unsigned)machine > NUSERS) { 9045775Speter printf("maxusers config info isn't present, using i386\n"); 9145744Speter up = &users[MACHINE_I386 - 1]; 9237578Sbde } else 9337578Sbde up = &users[machine - 1]; 9437578Sbde if (maxusers == 0) { 9537578Sbde printf("maxusers not specified; %d assumed\n", up->u_default); 9637578Sbde maxusers = up->u_default; 9737578Sbde } else if (maxusers < up->u_min) { 9837578Sbde printf("minimum of %d maxusers assumed\n", up->u_min); 9937578Sbde maxusers = up->u_min; 10037578Sbde } else if (maxusers > up->u_max) 10137578Sbde printf("warning: maxusers > %d (%d)\n", up->u_max, maxusers); 10237578Sbde 10337578Sbde /* Fake MAXUSERS as an option. */ 10437578Sbde op = (struct opt *)malloc(sizeof(*op)); 10537578Sbde memset(op, 0, sizeof(*op)); 10637578Sbde op->op_name = "MAXUSERS"; 10746021Speter snprintf(buf, sizeof(buf), "%d", maxusers); 10837578Sbde op->op_value = ns(buf); 10937578Sbde op->op_next = opt; 11037578Sbde opt = op; 11137578Sbde 11212772Speter read_options(); 11312772Speter for (ol = otab; ol != 0; ol = ol->o_next) 11412772Speter do_option(ol->o_name); 11512772Speter} 11612772Speter 11712772Speter/* 11812772Speter * Generate an <options>.h file 11912772Speter */ 12012772Speter 12145744Speterstatic void 12212772Speterdo_option(name) 12312772Speter char *name; 12412772Speter{ 12545744Speter char *file, *inw; 12648401Speter struct opt_list *ol; 12712772Speter struct opt *op, *op_head, *topp; 12812772Speter FILE *inf, *outf; 12912772Speter char *value; 13012772Speter char *oldvalue; 13112772Speter int seen; 13248401Speter int tidy; 13312772Speter 13412772Speter file = tooption(name); 13512772Speter 13612772Speter /* 13712772Speter * Check to see if the option was specified.. 13812772Speter */ 13912772Speter value = NULL; 14012772Speter for (op = opt; op; op = op->op_next) { 14112772Speter if (eq(name, op->op_name)) { 14237577Sbde oldvalue = value; 14312772Speter value = op->op_value; 14437577Sbde if (value == NULL) 14512772Speter value = ns("1"); 14637577Sbde if (oldvalue != NULL && !eq(value, oldvalue)) 14737577Sbde printf( 14837577Sbde "%s:%d: option \"%s\" redefined from %s to %s\n", 14937577Sbde PREFIX, op->op_line, op->op_name, oldvalue, 15037577Sbde value); 15112772Speter op->op_ownfile++; 15212772Speter } 15312772Speter } 15412772Speter 15512772Speter inf = fopen(file, "r"); 15612772Speter if (inf == 0) { 15712772Speter outf = fopen(file, "w"); 15829451Scharnier if (outf == 0) 15929451Scharnier err(1, "%s", file); 16012772Speter 16112772Speter /* was the option in the config file? */ 16212772Speter if (value) { 16312772Speter fprintf(outf, "#define %s %s\n", name, value); 16412772Speter } /* else empty file */ 16512772Speter 16612772Speter (void) fclose(outf); 16712772Speter return; 16812772Speter } 16912772Speter oldvalue = NULL; 17012772Speter op_head = NULL; 17112772Speter seen = 0; 17248401Speter tidy = 0; 17312772Speter for (;;) { 17412772Speter char *cp; 17512772Speter char *invalue; 17612772Speter 17712772Speter /* get the #define */ 17812772Speter if ((inw = get_word(inf)) == 0 || inw == (char *)EOF) 17912772Speter break; 18012772Speter /* get the option name */ 18112772Speter if ((inw = get_word(inf)) == 0 || inw == (char *)EOF) 18212772Speter break; 18312772Speter inw = ns(inw); 18448401Speter /* get the option value */ 18548401Speter if ((cp = get_word(inf)) == 0 || cp == (char *)EOF) 18612772Speter break; 18712772Speter /* option value */ 18812772Speter invalue = ns(cp); /* malloced */ 18912772Speter if (eq(inw, name)) { 19012772Speter oldvalue = invalue; 19112772Speter invalue = value; 19212772Speter seen++; 19312772Speter } 19448401Speter for (ol = otab; ol != 0; ol = ol->o_next) 19548401Speter if (eq(inw, ol->o_name)) 19648401Speter break; 19755603Sbde if (!eq(inw, name) && !ol) { 19848401Speter printf("WARNING: unknown option `%s' removed from %s\n", 19948401Speter inw, file); 20048401Speter tidy++; 20148401Speter } else { 20248401Speter op = (struct opt *) malloc(sizeof *op); 20348401Speter bzero(op, sizeof(*op)); 20448401Speter op->op_name = inw; 20548401Speter op->op_value = invalue; 20648401Speter op->op_next = op_head; 20748401Speter op_head = op; 20848401Speter } 20912772Speter 21012772Speter /* EOL? */ 21112772Speter cp = get_word(inf); 21212772Speter if (cp == (char *)EOF) 21312772Speter break; 21412772Speter } 21512772Speter (void) fclose(inf); 21648401Speter if (!tidy && ((value == NULL && oldvalue == NULL) || 21748401Speter (value && oldvalue && eq(value, oldvalue)))) { 21812772Speter for (op = op_head; op != NULL; op = topp) { 21912772Speter topp = op->op_next; 22012772Speter free(op->op_name); 22112772Speter free(op->op_value); 22212772Speter free(op); 22312772Speter } 22412772Speter return; 22512772Speter } 22612772Speter 22712772Speter if (value && !seen) { 22812772Speter /* New option appears */ 22912772Speter op = (struct opt *) malloc(sizeof *op); 23012772Speter bzero(op, sizeof(*op)); 23112772Speter op->op_name = ns(name); 23212772Speter op->op_value = value ? ns(value) : NULL; 23312772Speter op->op_next = op_head; 23412772Speter op_head = op; 23512772Speter } 23612772Speter 23712772Speter outf = fopen(file, "w"); 23829451Scharnier if (outf == 0) 23929451Scharnier err(1, "%s", file); 24012772Speter for (op = op_head; op != NULL; op = topp) { 24112772Speter /* was the option in the config file? */ 24212772Speter if (op->op_value) { 24312772Speter fprintf(outf, "#define %s %s\n", 24412772Speter op->op_name, op->op_value); 24512772Speter } 24612772Speter topp = op->op_next; 24712772Speter free(op->op_name); 24812772Speter free(op->op_value); 24912772Speter free(op); 25012772Speter } 25112772Speter (void) fclose(outf); 25212772Speter} 25312772Speter 25412772Speter/* 25512772Speter * Find the filename to store the option spec into. 25612772Speter */ 25745744Speterstatic char * 25812772Spetertooption(name) 25912772Speter char *name; 26012772Speter{ 26112772Speter static char hbuf[80]; 26212772Speter char nbuf[80]; 26312772Speter struct opt_list *po; 26412772Speter 26512772Speter /* "cannot happen"? the otab list should be complete.. */ 26612772Speter (void) strcpy(nbuf, "options.h"); 26712772Speter 26812772Speter for (po = otab ; po != 0; po = po->o_next) { 26912772Speter if (eq(po->o_name, name)) { 27012772Speter strcpy(nbuf, po->o_file); 27112772Speter break; 27212772Speter } 27312772Speter } 27412772Speter 27512772Speter (void) strcpy(hbuf, path(nbuf)); 27612772Speter return (hbuf); 27712772Speter} 27812772Speter 27912772Speter/* 28012772Speter * read the options and options.<machine> files 28112772Speter */ 28245744Speterstatic void 28312772Speterread_options() 28412772Speter{ 28512772Speter FILE *fp; 28620457Sjoerg char fname[80]; 28712772Speter char *wd, *this, *val; 28812772Speter struct opt_list *po; 28912772Speter int first = 1; 29012772Speter char genopt[80]; 29112772Speter 29212772Speter otab = 0; 29320457Sjoerg (void) snprintf(fname, sizeof fname, "../../conf/options"); 29412772Speteropenit: 29512772Speter fp = fopen(fname, "r"); 29612772Speter if (fp == 0) { 29712772Speter return; 29812772Speter } 29952098Speter if (ident == NULL) { 30012772Speter printf("no ident line specified\n"); 30112772Speter exit(1); 30212772Speter } 30312772Speternext: 30412772Speter wd = get_word(fp); 30512772Speter if (wd == (char *)EOF) { 30612772Speter (void) fclose(fp); 30712772Speter if (first == 1) { 30820457Sjoerg (void) snprintf(fname, sizeof fname, "options.%s", machinename); 30912772Speter first++; 31012772Speter goto openit; 31112772Speter } 31212772Speter if (first == 2) { 31345744Speter (void) snprintf(fname, sizeof fname, "options.%s", raisestr(ident)); 31412772Speter first++; 31512772Speter fp = fopen(fname, "r"); 31612772Speter if (fp != 0) 31712772Speter goto next; 31812772Speter } 31912772Speter return; 32012772Speter } 32112772Speter if (wd == 0) 32212772Speter goto next; 32352098Speter if (wd[0] == '#') 32412772Speter { 32552098Speter while (((wd = get_word(fp)) != (char *)EOF) && wd) 32612772Speter ; 32712772Speter goto next; 32812772Speter } 32912772Speter this = ns(wd); 33012772Speter val = get_word(fp); 33112772Speter if (val == (char *)EOF) 33212772Speter return; 33312772Speter if (val == 0) { 33412772Speter char *s = ns(this); 33520457Sjoerg (void) snprintf(genopt, sizeof genopt, "opt_%s.h", lower(s)); 33612772Speter val = genopt; 33712772Speter free(s); 33812772Speter } 33912772Speter val = ns(val); 34012772Speter 34112772Speter for (po = otab ; po != 0; po = po->o_next) { 34212772Speter if (eq(po->o_name, this)) { 34312772Speter printf("%s: Duplicate option %s.\n", 34412772Speter fname, this); 34512772Speter exit(1); 34612772Speter } 34712772Speter } 34812772Speter 34912772Speter po = (struct opt_list *) malloc(sizeof *po); 35012772Speter bzero(po, sizeof(*po)); 35112772Speter po->o_name = this; 35212772Speter po->o_file = val; 35312772Speter po->o_next = otab; 35412772Speter otab = po; 35512772Speter 35612772Speter goto next; 35712772Speter} 35812772Speter 35920458Sjoergstatic char * 36012772Speterlower(str) 36112772Speter register char *str; 36212772Speter{ 36312772Speter register char *cp = str; 36412772Speter 36512772Speter while (*str) { 36612772Speter if (isupper(*str)) 36712772Speter *str = tolower(*str); 36812772Speter str++; 36912772Speter } 37012772Speter return (cp); 37112772Speter} 37212772Speter 373