From: "qq qq" <miska0000@gmx.com>
To: cygwin@cygwin.com
Subject: Cygwin's writev() non-standard behavior
Date: Wed, 23 Apr 2014 14:06:00 -0000 [thread overview]
Message-ID: <20140423140635.156430@gmx.com> (raw)
writev() does not accept count 0 but it should
$ cat test.c
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/uio.h>
int main()
{
 struct iovec vec;
 memset(&vec, 0, sizeof(vec));
 if (writev(1, &vec, 0) < 0)
  perror("writev");
 return 0;
}
Linux:
$ gcc -Wall test.c
$ ./a.out
Cygwin:
$ gcc -Wall test.c
$ ./a.exe
writev: Invalid argument
This behavior is buggy per:
   EINVAL ... the vector count count is less than zero or greater than the permitted maximum ...
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next reply other threads:[~2014-04-23 14:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-23 14:06 qq qq [this message]
2014-04-23 14:43 ` Eric Blake
2014-04-23 14:53 ` Eliot Moss
2014-04-23 15:29 ` Corinna Vinschen
2014-04-23 14:53 qq qq
2014-04-23 16:24 ` Eric Blake
2014-04-23 15:48 qq qq
2014-04-23 16:44 ` Corinna Vinschen
2014-04-23 18:44 ` Christopher Faylor
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