...The possible operations on an open mem file are: read (2) pread (2) write (2) pwrite (2) lseek (2) These operate as usual, with the exception that lseek (2), write (2), and pwri…...e., functions and types) whose names are suffixed with "64" (e.g., off64_t versus off_t , lseek64 () versus lseek (), etc.). New programs should not employ this macro; instead _…...e., functions and types) whose names are suffixed with "64" (e.g., off64_t versus off_t , lseek64 () versus lseek (), etc.). New programs should not employ this macro; instead _…...) Added in POSIX.1-2008 listen (2) longjmp (3) Added in POSIX.1-2008 TC2; see notes below lseek (2) lstat (2) memccpy (3) Added in POSIX.1-2008 TC2 memchr (3) Added in POSIX.1-2…...d-of-file and SIGPIPE / EPIPE are delivered when appropriate. It is not possible to apply lseek (2) to a pipe. Pipe capacity A pipe has a limited capacity. If the pipe is full, …...istio() [Added in POSIX.1-2008] localtime() localtime_r() lockf() [Added in POSIX.1-2008] lseek() lstat() mkdir() [Added in POSIX.1-2008] mkdirat() [Added in POSIX.1-2008] mkdte…...han the system page size, and the write must be performed at the start of the file (i.e., lseek (2) and pwrite (2) can't be used to write to nonzero offsets in the file). • The …