/*- * Copyright (c) 1993 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Sean Eric Fagan of Cygnus Support. * * %sccs.include.redist.c% */ #if defined(LIBC_SCCS) && !defined(lint) static char sccsid[] = "@(#)sysconf.c 5.1 (Berkeley) 05/04/93"; #endif /* LIBC_SCCS and not lint */ #include #include #include #include long sysconf(name) int name; { struct clockinfo clk; size_t len; int mib[2], value; switch (name) { case _SC_ARG_MAX: mib[0] = CTL_KERN; mib[1] = KERN_ARGMAX; break; case _SC_CHILD_MAX: mib[0] = CTL_KERN; mib[1] = KERN_MAXPROC; break; case _SC_CLK_TCK: mib[0] = CTL_KERN; mib[1] = KERN_CLOCKRATE; len = sizeof(struct clockinfo); return (sysctl(mib, 2, &clk, &len, NULL, 0) == -1 ? -1 : clk.hz); case _SC_NGROUPS_MAX: mib[0] = CTL_KERN; mib[1] = KERN_NGROUPS; break; case _SC_OPEN_MAX: mib[0] = CTL_KERN; mib[1] = KERN_MAXFILES; break; case _SC_JOB_CONTROL: mib[0] = CTL_KERN; mib[1] = KERN_JOB_CONTROL; break; case _SC_SAVED_IDS: mib[0] = CTL_KERN; mib[1] = KERN_SAVED_IDS; break; case _SC_VERSION: mib[0] = CTL_KERN; mib[1] = KERN_POSIX1; break; case _SC_BC_BASE_MAX: mib[0] = CTL_USER; mib[1] = USER_BC_BASE_MAX; break; case _SC_BC_DIM_MAX: mib[0] = CTL_USER; mib[1] = USER_BC_DIM_MAX; break; case _SC_BC_SCALE_MAX: mib[0] = CTL_USER; mib[1] = USER_BC_SCALE_MAX; break; case _SC_BC_STRING_MAX: mib[0] = CTL_USER; mib[1] = USER_BC_STRING_MAX; break; case _SC_COLL_WEIGHTS_MAX: mib[0] = CTL_USER; mib[1] = USER_COLL_WEIGHTS_MAX; break; case _SC_EXPR_NEST_MAX: mib[0] = CTL_USER; mib[1] = USER_EXPR_NEST_MAX; break; case _SC_LINE_MAX: mib[0] = CTL_USER; mib[1] = USER_LINE_MAX; break; case _SC_RE_DUP_MAX: mib[0] = CTL_USER; mib[1] = USER_RE_DUP_MAX; break; case _SC_2_VERSION: mib[0] = CTL_USER; mib[1] = USER_POSIX2_VERSION; break; case _SC_2_C_BIND: mib[0] = CTL_USER; mib[1] = USER_POSIX2_C_BIND; break; case _SC_2_C_DEV: mib[0] = CTL_USER; mib[1] = USER_POSIX2_C_DEV; break; case _SC_2_FORT_DEV: mib[0] = CTL_USER; mib[1] = USER_POSIX2_FORT_DEV; break; case _SC_2_FORT_RUN: mib[0] = CTL_USER; mib[1] = USER_POSIX2_FORT_RUN; break; case _SC_2_LOCALEDEF: mib[0] = CTL_USER; mib[1] = USER_POSIX2_LOCALEDEF; break; case _SC_2_SW_DEV: mib[0] = CTL_USER; mib[1] = USER_POSIX2_SW_DEV; break; default: errno = EINVAL; return (-1); } len = sizeof(value); return (sysctl(mib, 2, &value, &len, NULL, 0) == -1 ? -1 : value); }