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9.897 read

POSIX specification:
https://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html

Gnulib module: read, stdio, nonblocking

Portability problems fixed by Gnulib module read:

Portability problems fixed by Gnulib module stdio, together with module nonblocking:

Portability problems not fixed by Gnulib:

For handling EINTR, Gnulib provides a module ‘safe-read’ with a function safe_read.