#include	"u.h"#include	"lib.h"#include	"mem.h"#include	"dat.h"#include	"fns.h" #include	"fs.h" #include	"conf.h" #include	"netif.h"#include	"etherif.h"#include 	"vether.h" char	filebuf[BOOTARGSLEN]; static voidaddether(char *name, char *value){	char *p, *q;	int ctlrno; 	ctlrno = atoi(&name[5]);	if(ctlrno > MaxEther)		return;	p = value;	/* default ea = 00:00:09:00:00:xx */	memset(ve[ctlrno].ea, 0, 6);	ve[ctlrno].ea[2] = 9;	ve[ctlrno].ea[5] = ctlrno;	while(*p){		while(*p == ' ' || *p == '\t')			p++;		if(*p == '\0')			break;		if(strncmp(p, "type=", 5) == 0){			p += 5;			if(strncmp(p, "tap", 3) == 0)				ve[ctlrno].tap = 1;			else if(strncmp(p, "pcap", 4) == 0)				ve[ctlrno].tap = 0;			else				return;		}		else if(strncmp(p, "dev=", 4) == 0){			p += 4;			q = p;			while(*q && *q != ' ' && *q != '\t')				q++;			ve[ctlrno].dev = malloc(q - p + 1);			strncpy(ve[ctlrno].dev, p, q - p);			ve[ctlrno].dev[q-p] = '\0';			continue;		}		else if(strncmp(p, "ea=", 3) == 0){			if(parseether(ve[ctlrno].ea, p+3) == -1)				memset(ve[ctlrno].ea, 0, 6);		}		while(*p && *p != ' ' && *p != '\t')			p++;	}	nve++;} voidsetinioptions(){	static int i;	char *name, *value; 	for(; i < MAXCONF; i++){		if(!inifield[i])			break;		name = inifield[i];		if(*name == '*')			name++;		value = strchr(inifield[i], '=');		if(value == 0)			continue;		*value++ = 0;		if(strcmp(name, "cpulimit") == 0)			cpulimit = atoi(value);		else if(strcmp(name, "memsize") == 0)			memsize = atoi(value);		else if(strcmp(name, "canopenpath") == 0)			canopen = value;		else if(strncmp(name, "ether", 5) == 0)			addether(name, value);		else if(strcmp(name, "initarg") == 0)			initarg = value;		else if(strcmp(name, "localroot") == 0)			localroot = value;		else if(strcmp(name, "user") == 0)			username = value;		/* Restore '=' for setinienv and printconfig */		*(--value) = '=';	}} voidaddini(char *buf){	static int n = 0;	int blankline, incomment, inspace, inquote;	char *p, *q; 	/*	 * Strip out '\r', change '\t' -> ' '.	 * Change runs of spaces into single spaces.	 * Strip out trailing spaces, blank lines.         * The text between single quotes is not touched.	 *	 * We do this before we make the copy so that if we 	 * need to change the copy, it is already fairly clean.	 * The main need is in the case when plan9.ini has been	 * padded with lots of trailing spaces, as is the case 	 * for those created during a distribution install.	 */	p = buf;	blankline = 1;	incomment = inquote =inspace = 0;	for(q = buf; *q; q++){		if(inquote){			if(*q == '\'')				inquote = 0;			*p++ = *q;			continue;		}		if(!incomment && *q == '\'')			inquote = 1;		if(*q == '\r')			continue;		if(*q == '\t')			*q = ' ';		if(*q == ' '){			inspace = 1;			continue;		}		if(*q == '\n'){			if(!blankline){				if(!incomment)					*p++ = '\n';				blankline = 1;			}			incomment = inspace = 0;			continue;		}		if(inspace){			if(!blankline && !incomment)				*p++ = ' ';			inspace = 0;		}		if(blankline && *q == '#')			incomment = 1;		blankline = 0;		if(!incomment)			*p++ = *q;		}	*p++ = 0; 	n += gettokens(buf, &inifield[n], MAXCONF-n, "\n");	setinioptions();} intaddinifile(char *file){	static char *fb = filebuf;	char *buf;	int n, fd; 	if(strcmp(file, "-") == 0)		fd = fileno(stdin);	else if((fd = open(file, OREAD)) < 0)		return -1; 	buf = fb;	*buf = 0;	while((n = read(fd, buf, BOOTARGSLEN-1)) > 0)		if(n<0)			return -1;		else			buf += n;	close(fd);	*buf = 0;	addini(fb);	fb = buf;	return n;} char*fullpath(char *root) {	char cwd[1024]; 	if(root[0] != '/'){		if(getcwd(cwd, sizeof cwd) == nil)			panic("getcwd: %r");		root = cleanname(smprint("%s/%s", cwd, root));	}	return root;} /* * Poor man's quotestrdup to avoid needing quote.c */char*quoted(char *in) {	char *out, *p;	int i, n; 	n = 0;	for(i = 0; i < strlen(in); i++)		if(in[i] == '\'')			n++;	out = malloc(strlen(in) + n + 2);	p = out;	if(*in != '\'')	*p++ = '\'';	for(i = 0; i < strlen(in); i++){		if(in[i] == '\'')			*p++ = in[i];		*p++ = in[i];	}	*p++ = '\'';	*p = 0;	return out;} voidsetinienv(){	int i;	char *name, *value; 	for(i = 0; i < MAXCONF; i++){		if(!inifield[i])			break;		name = inifield[i];		value = strchr(inifield[i], '=');		if(*name == '*' || value == 0 || value[0] == 0)			continue;		*value++ = 0;		ksetenv(name, value, 0);	}	if(initarg){		if(*initarg != '\'')			initarg = quoted(initarg);		value = smprint("/386/init -t %s", initarg);		ksetenv("init", value, 0);	}	if(localroot){		value = smprint("local!#Z%s", fullpath(localroot));		ksetenv("nobootprompt", value, 0);	}	ksetenv("user", username, 0);} /* * Debugging: tell user what options we guessed.*/voidprintconfig(char *argv0){	int i; 	print(argv0);	if(usetty)		print(" -%c", nogui ? 'g' : 't');	print(" \n");	for(i = 0; i < MAXCONF; i++){		if(!inifield[i])			break;		print("\t%s\n", inifield[i]);	}	if(initarg)		print("\tinit=/386/init -t %s\n", initarg);	if(localroot)		print("\tnobootprompt=#Z%s\n", localroot);	print("\tuser=%s\n", username);}