1992/0322/boot/boot.c (diff list | history)

boot/boot.c on 1992/0317
1992/0317		#include <u.h> #include <libc.h>
1992/0318		#include "../boot/boot.h"
1992/0317		#define DEFSYS "bootes" typedef struct Net Net; typedef struct Flavor Flavor; int printcol; char cputype[NAMELEN]; char terminal[NAMELEN]; char sys[2*NAMELEN]; char username[NAMELEN]; int mflag; int fflag; int kflag;
1992/0322		int aflag;
1992/0317		int cache(int); void swapproc(void); Method *rootserver(char*); void
1992/0318		main(int argc, char *argv[])
1992/0317		{ int fd; Method *mp; char cmd[64];
1992/0318		char flags[6];
1992/0317		int islocal; sleep(1000); open("#c/cons", OREAD); open("#c/cons", OWRITE); open("#c/cons", OWRITE); ARGBEGIN{
1992/0322		case 'a': aflag = 1; break;
1992/0317		case 'u': strcpy(username, ARGF()); break; case 'k': kflag = 1; break; case 'm': mflag = 1; break; case 'f': fflag = 1; break; }ARGEND readenv("cputype", cputype, sizeof(cputype)); readenv("terminal", terminal, sizeof(cputype)); /* * pick a method and initialize it */
1992/0318		mp = rootserver(argc ? *argv : 0);
1992/0317		(*mp->config)(mp);
1992/0318		islocal = strcmp(mp->name, "local") == 0;
1992/0317		/* * get/set key or password */
1992/0318		(*pword)(islocal, mp);
1992/0317		/* * connect to the root file system */ fd = (*mp->connect)(); if(fd < 0) fatal("can't connect to file server"); if(!islocal){ nop(fd); session(fd);
1992/0318		if(cfs) fd = (*cfs)(fd);
1992/0317		} srvcreate("boot", fd); /* * create the name space, mount the root fs */ if(bind("/", "/", MREPL) < 0) fatal("bind"); if(mount(fd, "/", MAFTER|MCREATE, "", "") < 0) fatal("mount"); close(fd);
1992/0320		newkernel();
1992/0317		/*
1992/0318		* if a local file server exists and it's not the * root file server, start it and mount it onto /n/kfs
1992/0317		*/ if(!islocal){ for(mp = method; mp->name; mp++) if(strcmp(mp->name, "local")==0){
1992/0318		(*mp->config)(mp); fd = (*mp->connect)(); if(fd < 0)
1992/0317		break;
1992/0318		if(mount(fd, "/n/kfs", MAFTER|MCREATE, "", "") < 0)
1992/0317		fatal("mount");
1992/0318		close(fd);
1992/0317		break; } } settime(islocal); swapproc(); sprint(cmd, "/%s/init", cputype);
1992/0322		sprint(flags, "-%s%s%s", cpuflag ? "c" : "t", mflag ? "m" : "", aflag ? "a" : "");
1992/0317		execl(cmd, "init", flags, 0); fatal(cmd); } /*
1992/0318		* ask user from whence cometh the root file system
1992/0317		*/ Method* rootserver(char *arg) { char prompt[256]; char reply[64]; Method *mp; char *cp; int n;
1992/0322		int notfirst;
1992/0317		mp = method;
1992/0318		n = sprint(prompt, "root is from (%s", mp->name);
1992/0317		for(mp++; mp->name; mp++) n += sprint(prompt+n, ", %s", mp->name); sprint(prompt+n, ")");
1992/0318		if(arg) strcpy(reply, arg); else
1992/0317		strcpy(reply, method->name);
1992/0322		for(notfirst = 0;; notfirst = 1){ if(mflag || notfirst)
1992/0317		outin(prompt, reply, sizeof(reply)); for(mp = method; mp->name; mp++) if(*reply == *mp->name){ cp = strchr(reply, '!'); if(cp) strcpy(sys, cp+1); return mp; } if(mp->name == 0) continue; } } void swapproc(void) { int fd; fd = open("#c/swap", OWRITE); if(fd < 0){ warning("opening #c/swap"); return; } if(write(fd, "start", 5) <= 0) warning("starting swap kproc"); }