ref: 1d82e3f42aa82b12edba2e057c1a6cc090ee1c80
dir: /sys/src/cmd/ndb/csquery.c/
#include <u.h> #include <libc.h> #include <bio.h> char *server; char *status; int statusonly; void usage(void) { fprint(2, "usage: ndb/csquery [/net/cs [addr...]]\n"); exits("usage"); } void query(char *addr) { char buf[8192+1]; int fd, n; fd = open(server, ORDWR); if(fd < 0) sysfatal("cannot open %s: %r", server); if(write(fd, addr, strlen(addr)) != strlen(addr)){ if(!statusonly) fprint(2, "translating %s: %r\n", addr); status = "errors"; close(fd); return; } if(!statusonly){ seek(fd, 0, 0); while((n = read(fd, buf, sizeof(buf)-1)) > 0){ buf[n++] = '\n'; write(1, buf, n); } write(1, "\n", 1); } close(fd); } void main(int argc, char **argv) { char *p; int i; Biobuf in; ARGBEGIN{ case 's': statusonly = 1; break; default: usage(); }ARGEND if(argc > 0) server = argv[0]; else server = "/net/cs"; if(argc > 1){ for(i=1; i<argc; i++) query(argv[i]); exits(status); } Binit(&in, 0, OREAD); for(;;){ print("> "); p = Brdline(&in, '\n'); if(p == 0) break; p[Blinelen(&in)-1] = 0; query(p); } exits(nil); }