Commit 9aa2afc3 authored by Daniel Stenberg's avatar Daniel Stenberg
Browse files

Curl_socket_check: add extra check to avoid integer overflow

parent d18c5464

lib/select.c

+6 −0
Original line number Diff line number Diff line
@@ -165,6 +165,12 @@ int Curl_socket_check(curl_socket_t readfd0, /* two sockets to read from */ 
  int r;

  int ret;



#if SIZEOF_LONG != SIZEOF_INT

  /* wrap-around precaution */

  if(timeout_ms >= INT_MAX)

    timeout_ms = INT_MAX;

#endif



  if((readfd0 == CURL_SOCKET_BAD) && (readfd1 == CURL_SOCKET_BAD) &&

     (writefd == CURL_SOCKET_BAD)) {

    /* no sockets, just wait */