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getpwuid
POSIX specification:
https://pubs.opengroup.org/onlinepubs/9699919799/functions/getpwuid.html
Gnulib module: —
Portability problems fixed by Gnulib:
Portability problems not fixed by Gnulib:
fork
and exec
if
the parent process is multi-threaded. Instead, use getpwuid_r
prior to forking.