[Fwd: Re: [Fwd: Re: Last item on TODO list for mc before 4.6.1]]

[Roland Illig]

Leonard den Ottolander wrote:
> Hm. pipethrough "ls" gives me "Broken pipe" :p .

Here's a patch. According to both the Linux documentation and 
POSIX-1003.1-2001 the write() call returns EPIPE when SIGPIPE is 
ignored, so this time there should be an output of ("write: " + 
strerror(EPIPE)).

I couldn't reproduce it on my system, but the cause might be that "ls" 
is too fast and the writing is not atomical. So here is what might happen:

parent: select(...) [returns: you can write to "ls"]
child:  execl("/bin/sh", "/bin/sh", "-c", "ls", NULL);
child:  ...
child:  _exit(0);
parent: write(ls's stdin, "hello, world", 13)

Roland
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