wrong check for mmap result

[gocarlos]

FITSWebQL/src/main_uWS.cpp

Line 1164 in 480095a

if (buffer != NULL)

should check for MAP_FAILED not NULL

    On success, mmap() returns a pointer to the mapped area.  On error,
       the value MAP_FAILED (that is, (void *) -1) is returned, and errno is
       set to indicate the cause of the error.

[jvo203]

Thank you, will correct the code. Please note this is a new v5 under active development. The current full-featured version is still the v4 coded in Rust.

[jvo203]

Fixed this in main_uWS.cpp as well as similar problems in fits.cpp. Thank you for reporting the issue.