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- #include "stdinc.h"
- #include "dat.h"
- #include "fns.h"
- char *host;
- void
- usage(void)
- {
- fprint(2, "usage: read [-h host] score [type]\n");
- exits("usage");
- }
- int
- parseScore(uchar *score, char *buf, int n)
- {
- int i, c;
- memset(score, 0, VtScoreSize);
- if(n < VtScoreSize*2)
- return 0;
- for(i=0; i<VtScoreSize*2; i++) {
- if(buf[i] >= '0' && buf[i] <= '9')
- c = buf[i] - '0';
- else if(buf[i] >= 'a' && buf[i] <= 'f')
- c = buf[i] - 'a' + 10;
- else if(buf[i] >= 'A' && buf[i] <= 'F')
- c = buf[i] - 'A' + 10;
- else {
- return 0;
- }
- if((i & 1) == 0)
- c <<= 4;
- score[i>>1] |= c;
- }
- return 1;
- }
- int
- main(int argc, char *argv[])
- {
- int type, n;
- uchar score[VtScoreSize];
- uchar *buf;
- VtSession *z;
- ARGBEGIN{
- case 'h':
- host = EARGF(usage());
- break;
- default:
- usage();
- break;
- }ARGEND
- if(argc != 1 && argc != 2)
- usage();
- vtAttach();
- fmtinstall('V', vtScoreFmt);
- fmtinstall('R', vtErrFmt);
- if(!parseScore(score, argv[0], strlen(argv[0])))
- vtFatal("could not parse score: %s", vtGetError());
- buf = vtMemAllocZ(VtMaxLumpSize);
- z = vtDial(host, 0);
- if(z == nil)
- vtFatal("could not connect to server: %R");
- if(!vtConnect(z, 0))
- sysfatal("vtConnect: %r");
- if(argc == 1){
- n = -1;
- for(type=0; type<VtMaxType; type++){
- n = vtRead(z, score, type, buf, VtMaxLumpSize);
- if(n >= 0){
- fprint(2, "venti/read%s%s %V %d\n", host ? " -h" : "", host ? host : "",
- score, type);
- break;
- }
- }
- }else{
- type = atoi(argv[1]);
- n = vtRead(z, score, type, buf, VtMaxLumpSize);
- }
- vtClose(z);
- if(n < 0)
- vtFatal("could not read block: %s", vtGetError());
- if(write(1, buf, n) != n)
- vtFatal("write: %r");
- vtDetach();
- exits(0);
- return 0; /* shut up compiler */
- }
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