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* doc/posix-functions/popen.texi (popen): Document cygwin bugs. * modules/popen: New file. * modules/popen-tests: Likewise. * tests/test-popen.c: Likewise. * m4/popen.m4: Likewise. * lib/popen.c: Likewise. * lib/stdio.in.h (popen): New declaration. * m4/stdio_h.m4 (gl_STDIO_H_DEFAULTS): Add popen. * modules/stdio (Makefile.am): Likewise. * MODULES.html.sh (systems lacking POSIX:2008): Mention it. Signed-off-by: Eric Blake <ebb9@byu.net>
25 lines
653 B
Plaintext
25 lines
653 B
Plaintext
@node popen
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@section @code{popen}
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@findex popen
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POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/popen.html}
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Gnulib module: popen
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Portability problems fixed by Gnulib:
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@itemize
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@item
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Some platforms start the child with closed stdin or stdout if the
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standard descriptors were closed in the parent:
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Cygwin 1.5.x.
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@end itemize
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Portability problems not fixed by Gnulib:
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@itemize
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@item
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Some platforms mistakenly set the close-on-exec bit, then if it is
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cleared by the application, the platform then leaks file descriptors
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from earlier @code{popen} calls into subsequent @code{popen} children:
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Cygwin 1.5.x.
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@end itemize
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