Bug#916562: libc6: fputs(), fputc(), and fwrite() do not fail on write error

[Samuel Thibault <sthibault@debian.org>]

Hello,

Asher Gordon, le sam. 15 déc. 2018 18:51:19 -0500, a ecrit:
> If I use fputs(3), fputc(3), or fwrite(3) to write to a file that can
> be opened for writing but cannot be written to (e.g /dev/full), the
> functions return 1 rather than the expected EOF (or 0 in the case of
> fread()).

Well, that is not surprising since these functions are buffered. You
need to call fflush() to make sure that no error happened on the actual
underlying write.

Samuel