/*
* Send error message back to a client.
*/
int send_error(struct mg_connection *conn, int status, const char *reason, const char *fmt, ...) {
va_list ap;
conn->status_code = status;
(void) mg_printf(conn,
"HTTP/1.1 %d %s\r\n"
"Content-Type: text/html\r\n"
"Connection: close\r\n"
"\r\n", status, reason);
/* Errors 1xx, 204 and 304 MUST NOT send a body */
if(status > 199 && status != 204 && status != 304) {
char buf[BUFSIZ];
int len;
conn->num_bytes_sent = 0;
va_start(ap, fmt);
len = mg_vsnprintf(conn, buf, sizeof(buf), fmt, ap);
va_end(ap);
conn->num_bytes_sent += mg_write(conn, buf, len);
cry(conn, "%s", buf);
}
return(1);
}
void mg_send_http_error(struct mg_connection *conn, int status,
const char *reason, const char *fmt, ...) {
char buf[BUFSIZ];
va_list ap;
int len;
conn->request_info.status_code = status;
buf[0] = '\0';
len = 0;
/* Errors 1xx, 204 and 304 MUST NOT send a body */
if (status > 199 && status != 204 && status != 304) {
len = mg_snprintf(conn, buf, sizeof(buf), "Error %d: %s", status, reason);
cry(conn, "%s", buf);
buf[len++] = '\n';
va_start(ap, fmt);
len += mg_vsnprintf(conn, buf + len, sizeof(buf) - len, fmt, ap);
va_end(ap);
}
DEBUG_TRACE(("[%s]", buf));
mg_printf(conn, "HTTP/1.1 %d %s\r\n"
"Content-Type: text/plain\r\n"
"Content-Length: %d\r\n"
"Connection: %s\r\n\r\n", status, reason, len,
suggest_connection_header(conn));
conn->num_bytes_sent += mg_printf(conn, "%s", buf);
}
static int mg_snprintf(char *buf, size_t buflen, const char *fmt, ...) {
va_list ap;
int n;
va_start(ap, fmt);
n = mg_vsnprintf(buf, buflen, fmt, ap);
va_end(ap);
return n;
}
int mg_printf(struct mg_connection *conn, const char *fmt, ...) {
char buf[BUFSIZ];
int len;
va_list ap;
va_start(ap, fmt);
len = mg_vsnprintf(conn, buf, sizeof(buf), fmt, ap);
va_end(ap);
return mg_write(conn, buf, (size_t)len);
}
int Response::vprintf(const char *fmt, va_list ap)
{
char buf[BUFSIZE];
int len = mg_vsnprintf(conn, buf, sizeof(buf), fmt, ap);
return mg_write(conn, buf, (size_t)len);
}
