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13.44.18 res_send

Documentation:
man res_send

Gnulib module: —

Portability problems fixed by Gnulib:

Portability problems not fixed by Gnulib:

• This function is missing on some platforms: macOS 11.1, OpenBSD 6.7, Minix 3.3.0, Cygwin 1.5.x, mingw, MSVC 14, Android 9.0.