AT&T system V fdopen mode checking

[Doug Gwyn]

In article <713 at mbf.UUCP> hae at mbf.UUCP (Hae Hirdler) writes:
-The man page on the fdopen states that "the type of the stream must 
-agree with the mode of the open file."

I believe by "mode" they mean "file access permissions".

-For example, fd= open(filename, O_RDONLY); fptr= fdopen(filename, "w")
-will return a NON_NULL fptr value instead of NULL.  

O_RDONLY has nothing to do with the file.  It is just a parameter to open().