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fstat
POSIX specification:
http://www.opengroup.org/onlinepubs/9699919799/functions/fstat.html
Gnulib module: fstat
Portability problems fixed by Gnulib:
off_t
is a 32-bit type, fstat
may not correctly
report the size of files or block devices larger than 2 GB.
(Cf. AC_SYS_LARGEFILE
.)
Portability problems not fixed by Gnulib:
struct stat
.
fstat
applied to the file descriptors 0 and 1, returns
different st_ino
values, even if standard input and standard output
are not redirected and refer to the same terminal.