From: Markus Wichmann <nullplan@gmx.net>
To: musl@lists.openwall.com
Subject: Possible oversight in setvbuf()
Date: Fri, 13 Jul 2018 16:40:52 +0200 [thread overview]
Message-ID: <20180713144052.GA13099@voyager> (raw)
Hi all,
ungetc() seems to depend on f->buf pointing UNGET bytes into a valid
array. fdopen() will provide such a thing. However, setvbuf() will set
f->buf to the very start of the user provided buffer. Bizarrely, UNGET
is deducted from the buffer size, but not added to the pointer.
Oversight or intentional?
Ciao,
Markus
next reply other threads:[~2018-07-13 14:40 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-13 14:40 Markus Wichmann [this message]
2018-07-13 21:31 ` Rich Felker
2018-07-13 21:46 ` Christopher Friedt
2018-07-13 22:06 ` Rich Felker
2018-07-13 22:19 ` Christopher Friedt
2018-07-14 2:03 ` Rich Felker
2018-07-14 2:05 ` Rich Felker
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