Guardian Native C Library Calls Reference Manual (G06.28+, H06.05+)

Guardian Native C Library Calls (s) sysconf(3)
COLL_WEIGHTS_MAX
Is the maximum number of weights that can be assigned to an entry in the
LC_COLLATE locale-dependent information in a locale-de
finition file.
Value of name: _SC_COLL_WEIGHTS_MAX
EXPR_NEST_MAX
Is the maximum number of expressions that can be nested within parentheses by
the expr command.
Value of name: _SC_EXPR_NEST_MAX
IOV_MAX Is the maximum number of iovec parameter buffers that can be used per process
for fragmented input or output operations.
Value of name: _SC_IOV_MAX
LINE_MAX Is the maximum length, in bytes, of a command’s input line (from either the stan-
dard input file or another file) when the utility processes text files. The length
includes room for the trailing newline character.
Value of name: _SC_LINE_MAX
NGROUPS_MAX
Is the maximum number of simultaneous supplementary group IDs for each pro-
cess.
Value of name: _SC_NGROUPS_MAX
OPEN_MAX Is the maximum number of files that one process can have open at one time. This
value is unchanged for the life of the process.
Value of name: _SC_OPEN_MAX
PASS_MAX Is the maximum number of characters returned by the getpass() function, not
including the terminating null character.
Value of name: _SC_PASS_MAX
_POSIX_JOB_CONTROL
Has the value 1 if the system supports job control; otherwise, it has the value -1.
Value of name: _SC_JOB_CONTROL
_POSIX_SAVED_IDS
Has the value 1 if each process has a saved-set user ID and a saved-set group ID;
otherwise, it has the value -1.
Value of name: _SC_SAVED_IDS
_POSIX_VERSION
Is the date of approval of the most current version of the POSIX.1 standard that
the system supports. The date is a 6-digit number, with the first 4 digits signify-
ing the year and the last 2 digits the month. Different versions of the POSIX.1
standard are periodically approved by the IEEE Standards Board, and the date of
approval is used to distinguish between different versions. If
_POSIX_VERSION is defined, that value is returned; otherwise, the value -1 is
returned.
Value of name: _SC_VERSION
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