#include #include #include #include typedef struct Error Error; struct Error { char *num; char *concise; char *verbose; }; Error errormsg[] = { /* HInternal */ {"500 Internal Error", "Internal Error", "This server could not process your request due to an internal error."}, /* HTempFail */ {"500 Internal Error", "Temporary Failure", "The object %s is currently inaccessible.

Please try again later."}, /* HUnimp */ {"501 Not implemented", "Command not implemented", "This server does not implement the %s command."}, /* HBadReq */ {"400 Bad Request", "Strange Request", "Your client sent a query that this server could not understand."}, /* HBadSearch */ {"400 Bad Request", "Inapplicable Search", "Your client sent a search that cannot be applied to %s."}, /* HNotFound */ {"404 Not Found", "Object not found", "The object %s does not exist on this server."}, /* HUnauth */ {"403 Forbidden", "Forbidden", "You are not allowed to see the object %s."}, /* HSyntax */ {"400 Bad Request", "Garbled Syntax", "Your client sent a query with incoherent syntax."}, /* HNoSearch */ {"403 Forbidden", "Search not supported", "The object %s does not support the search command."}, /* HNoData */ {"403 Forbidden", "No data supplied", "Search or forms data must be supplied to %s."}, /* HExpectFail */ {"403 Expectation Failed", "Expectation Failed", "This server does not support some of your request's expectations."}, /* HUnkVers */ {"501 Not Implemented", "Unknown http version", "This server does not know how to respond to http version %s."}, /* HBadCont */ {"501 Not Implemented", "Impossible format", "This server cannot produce %s in any of the formats your client accepts."}, /* HOK */ {"200 OK", "everything is fine"}, }; /* * write a failure message to the net and exit */ int hfail(HConnect *c, int reason, ...) { Hio *hout; char makeup[HBufSize]; va_list arg; int n; hout = &c->hout; va_start(arg, reason); vseprint(makeup, makeup+HBufSize, errormsg[reason].verbose, arg); va_end(arg); n = snprint(c->xferbuf, HBufSize, "%s\n

%s

\n%s\n", errormsg[reason].concise, errormsg[reason].concise, makeup); hprint(hout, "%s %s\r\n", hversion, errormsg[reason].num); hprint(hout, "Date: %D\r\n", time(nil)); hprint(hout, "Server: Plan9\r\n"); hprint(hout, "Content-Type: text/html\r\n"); hprint(hout, "Content-Length: %d\r\n", n); if(c->head.closeit) hprint(hout, "Connection: close\r\n"); else if(!http11(c)) hprint(hout, "Connection: Keep-Alive\r\n"); hprint(hout, "\r\n"); if(c->req.meth == nil || strcmp(c->req.meth, "HEAD") != 0) hwrite(hout, c->xferbuf, n); if(c->replog) c->replog(c, "Reply: %s\nReason: %s\n", errormsg[reason].num, errormsg[reason].concise); return hflush(hout); }