1991/0304/power/boot.c (diff list | history)

1991/0131/sys/src/9/power/boot.c:44,49 – 1991/0304/sys/src/9/power/boot.c:44,50 (short | long | prev | next)
1990/1127		int dkdial(char *); int nonetdial(char *); int bitdial(char *);
1991/0304		int preamble(int);
1990/0227
1990/0427		/* * usage: 9b [-a] [server] [file]
1991/0131/sys/src/9/power/boot.c:237,274 – 1991/0304/sys/src/9/power/boot.c:238,295
1990/1127		return fd; } void boot(int ask)
1991/0304		int hotdial(char *arg)
1990/1127		{ int n, f, tries; char *srvname;
1991/01151		Dir dir; char dirbuf[DIRLEN];
1991/0304		int fd; char srvdir[100]; Waitmsg m;
1990/1127		if(ask){
1990/1202		outin("server", sys, sizeof(sys));
1991/0304		/* * The killer: gotta get a hotrodboot running, so dial up * on datakit and load it. */ fd = dkdial(arg); if(fd < 0) return -1; if(!preamble(fd)){ close(fd); return -1;
1990/1127		}                  for(tries = 0; tries < 5; tries++){ fd = -1; if(strncmp(sys, "bit!", 4) == 0) fd = bitdial(srvname = &sys[4]); else if(strncmp(sys, "dk!", 3) == 0) fd = dkdial(srvname = &sys[3]);
1990/1202		else if(strncmp(sys, "nonet!", 6) == 0) fd = nonetdial(srvname = &sys[6]);
1990/1127		else fd = nonetdial(srvname = sys); if(fd >= 0) break; print("can't connect, retrying...\n"); sleep(1000);
1991/0304		/* * use /dev; it's local */ if(mount(fd, "/dev", MREPL, "", "") < 0) error("mount"); switch(fork()){ case 0: /* * child: get hotrodboot running */ execl("/dev/mips/bin/hotrodboot", "hotrodboot", "/dev/hobbit/hot", 0); error("execl hotrodboot"); case -1: error("fork");
1990/1127		} if(fd < 0){ print("can't connect\n");
1990/0427		return; }
1991/0304		/* * parent: wait, then sleep a while */ wait(&m); if(m.msg[0]) error(m.msg); fprint(2, "sleep 3 seconds\n"); sleep(3*1000); fprint(2, "go for it....\n"); return open("#H/hotrod", ORDWR); }
1990/0227
1991/0304		int preamble(int fd) { int n;
1990/0227		print("nop..."); hdr.type = Tnop;
1990/11211		hdr.tag = ~0;
1991/0131/sys/src/9/power/boot.c:276,288 – 1991/0304/sys/src/9/power/boot.c:297,309
1990/0427		if(write(fd, buf, n) != n){ print("n = %d\n", n); prerror("write nop"); return;
1991/0304		return 0;
1990/0427		}
1990/1127		reread:
1990/0227		n = read(fd, buf, sizeof buf);
1990/0427		if(n <= 0){ prerror("read nop"); return;
1991/0304		return 0;
1990/0427		}
1990/1127		if(n == 2) goto reread;
1991/0131/sys/src/9/power/boot.c:290,304 – 1991/0304/sys/src/9/power/boot.c:311,325
1990/0227		print("n = %d; buf = %.2x %.2x %.2x %.2x\n", n, buf[0], buf[1], buf[2], buf[3]);
1990/0427		prerror("format nop"); return;
1991/0304		return 0;
1990/0227		}
1990/0427		if(hdr.type != Rnop){ prerror("not Rnop"); return;
1991/0304		return 0;
1990/0427		}
1990/11211		if(hdr.tag != ~0){ prerror("tag not ~0"); return;
1991/0304		return 0;
1990/11211		}
1990/0227		print("session...");
1991/0131/sys/src/9/power/boot.c:307,335 – 1991/0304/sys/src/9/power/boot.c:328,395
1990/0227		n = convS2M(&hdr, buf);
1990/0427		if(write(fd, buf, n) != n){ prerror("write session"); return;
1991/0304		return 0;
1990/0427		}
1990/0227		n = read(fd, buf, sizeof buf);
1990/0427		if(n <= 0){ prerror("read session"); return;
1991/0304		return 0;
1990/0427		} if(convM2S(buf, &hdr, n) == 0){ prerror("format session"); return;
1991/0304		return 0;
1990/0427		}
1990/11211		if(hdr.tag != ~0){ prerror("tag not ~0");
1990/0427		return;
1991/0304		return 0;
1990/0427		}
1990/11211		if(hdr.type == Rerror){ fprint(2, "boot: error %s\n", hdr.ename);
1990/0427		return;
1991/0304		return 0;
1990/0227		}
1990/11211		if(hdr.type != Rsession){ prerror("not Rsession");
1991/0304		return 0; } return 1; } void boot(int ask) { int n, f, tries; char *srvname; Dir dir; char dirbuf[DIRLEN]; if(ask){ outin("server", sys, sizeof(sys)); } for(tries = 0; tries < 5; tries++){ fd = -1; if(strncmp(sys, "bit!", 4) == 0) fd = bitdial(srvname = &sys[4]); if(strncmp(sys, "hot!", 4) == 0) fd = hotdial(srvname = &sys[4]); else if(strncmp(sys, "dk!", 3) == 0) fd = dkdial(srvname = &sys[3]); else if(strncmp(sys, "nonet!", 6) == 0) fd = nonetdial(srvname = &sys[6]); else fd = nonetdial(srvname = sys); if(fd >= 0) break; print("can't connect, retrying...\n"); sleep(1000); } if(fd < 0){ print("can't connect\n");
1990/11211		return; }
1991/0304		if(!preamble(fd)) return;
1990/0227		print("post...");
1990/1127		sprint(buf, "#s/%s", srvname);