📄 fail.c
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#include <u.h>#include <libc.h>#include <bin.h>#include <httpd.h>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.<p>Please try again later."}, [HUnimp] {"501 Not implemented", "Command not implemented", "This server does not implement the %s command."}, [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."}, [HBadReq] {"400 Bad Request", "Strange Request", "Your client sent a query that this server could not understand."}, [HSyntax] {"400 Bad Request", "Garbled Syntax", "Your client sent a query with incoherent syntax."}, [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."}, [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."}, [HUnauth] {"403 Forbidden", "Forbidden", "You are not allowed to see the object %s."}, [HOK] {"200 OK", "everything is fine"},};/* * write a failure message to the net and exit */inthfail(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, "<head><title>%s</title></head>\n<body><h1>%s</h1>\n%s</body>\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);}⌨️ 快捷键说明
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