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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;