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66712c2338
Gnulib intentionally does not have a gets module, and now that C11 and glibc have dropped it, we should be more proactive about warning any user on a platform that still has a declaration of this dangerous interface. * m4/stdio_h.m4 (gl_STDIO_H, gl_STDIO_H_DEFAULTS): Drop gets support. * modules/stdio (Makefile.am): Likewise. * lib/stdio-read.c (gets): Likewise. * tests/test-stdio-c++.cc: Likewise. * m4/warn-on-use.m4 (gl_WARN_ON_USE_PREPARE): Fix comment. * lib/stdio.in.h (gets): Make warning occur in more places. * doc/posix-functions/gets.texi (gets): Update documentation. Reported by Christer Solskogen. Signed-off-by: Eric Blake <eblake@redhat.com>
26 lines
664 B
Plaintext
26 lines
664 B
Plaintext
@node gets
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@section @code{gets}
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@findex gets
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POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/gets.html}
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Gnulib module: ---
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Portability problems fixed by Gnulib:
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@itemize
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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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This function should never be used, because it can overflow any given buffer.
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@item
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When reading from a non-blocking pipe whose buffer is empty, this function
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fails with @code{errno} being set to @code{EINVAL} instead of @code{EAGAIN} on
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some platforms:
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mingw, MSVC 9.
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@item
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On Windows platforms (excluding Cygwin), this function does not set @code{errno}
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upon failure.
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@end itemize
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