1992/0318/boot/nopsession.c (diff list | history)

boot/nopsession.c on 1992/0318
1992/0318		#include <u.h> #include <libc.h> #include <fcall.h> #include "../boot/boot.h" static Fcall hdr; static char buf[4*1024]; void nop(int fd) { long n; print("nop..."); hdr.type = Tnop; hdr.tag = NOTAG; n = convS2M(&hdr, buf); if(write(fd, buf, n) != n) fatal("write nop"); n = read(fd, buf, sizeof buf); if(n==2 && buf[0]=='O' && buf[1]=='K') n = read(fd, buf, sizeof buf); if(n <= 0) fatal("read nop"); if(convM2S(buf, &hdr, n) == 0) { print("n = %d; buf = %#.2x %#.2x %#.2x %#.2x\n", n, buf[0], buf[1], buf[2], buf[3]); fatal("format nop"); } if(hdr.type != Rnop) fatal("not Rnop"); } void session(int fd) { long n; print("session..."); hdr.type = Tsession; hdr.tag = NOTAG; n = convS2M(&hdr, buf); if(write(fd, buf, n) != n) fatal("write session"); n = read(fd, buf, sizeof buf); if(n <= 0) fatal("read session"); if(convM2S(buf, &hdr, n) == 0) fatal("format session"); if(hdr.type == Rerror){ print("error %s;", hdr.ename); fatal(hdr.ename); } if(hdr.type != Rsession) fatal("not Rsession"); }