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29 * @(#)sysctl.c 8.2 (Berkeley) 1/4/94
30 * $FreeBSD: src/lib/libc/gen/sysctl.c,v 1.6 2007/01/09 00:27:55 imp Exp $
31 * $DragonFly: src/lib/libc/gen/sysctl.c,v 1.3 2005/11/13 00:07:42 swildner Exp $
34 #include <sys/param.h>
35 #include <sys/sysctl.h>
44 extern int __sysctl(int *name
, u_int namelen
, void *oldp
, size_t *oldlenp
,
45 void *newp
, size_t newlen
);
48 sysctl(int *name
, u_int namelen
, void *oldp
, size_t *oldlenp
, void *newp
,
51 if (name
[0] != CTL_USER
)
52 return (__sysctl(name
, namelen
, oldp
, oldlenp
, newp
, newlen
));
65 if (oldp
&& *oldlenp
< sizeof(_PATH_STDPATH
)) {
69 *oldlenp
= sizeof(_PATH_STDPATH
);
71 memmove(oldp
, _PATH_STDPATH
, sizeof(_PATH_STDPATH
));
75 if (oldp
&& *oldlenp
< sizeof(int)) {
79 *oldlenp
= sizeof(int);
84 case USER_BC_BASE_MAX
:
85 *(int *)oldp
= BC_BASE_MAX
;
88 *(int *)oldp
= BC_DIM_MAX
;
90 case USER_BC_SCALE_MAX
:
91 *(int *)oldp
= BC_SCALE_MAX
;
93 case USER_BC_STRING_MAX
:
94 *(int *)oldp
= BC_STRING_MAX
;
96 case USER_COLL_WEIGHTS_MAX
:
97 *(int *)oldp
= COLL_WEIGHTS_MAX
;
99 case USER_EXPR_NEST_MAX
:
100 *(int *)oldp
= EXPR_NEST_MAX
;
103 *(int *)oldp
= LINE_MAX
;
105 case USER_RE_DUP_MAX
:
106 *(int *)oldp
= RE_DUP_MAX
;
108 case USER_POSIX2_VERSION
:
109 *(int *)oldp
= _POSIX2_VERSION
;
111 case USER_POSIX2_C_BIND
:
118 case USER_POSIX2_C_DEV
:
125 case USER_POSIX2_CHAR_TERM
:
126 #ifdef POSIX2_CHAR_TERM
132 case USER_POSIX2_FORT_DEV
:
133 #ifdef POSIX2_FORT_DEV
139 case USER_POSIX2_FORT_RUN
:
140 #ifdef POSIX2_FORT_RUN
146 case USER_POSIX2_LOCALEDEF
:
147 #ifdef POSIX2_LOCALEDEF
153 case USER_POSIX2_SW_DEV
:
160 case USER_POSIX2_UPE
:
167 case USER_STREAM_MAX
:
168 *(int *)oldp
= FOPEN_MAX
;
170 case USER_TZNAME_MAX
:
171 *(int *)oldp
= NAME_MAX
;