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29 * @(#)sysctl.c 8.2 (Berkeley) 1/4/94
30 * $FreeBSD: head/lib/libc/gen/sysctl.c 240176 2012-09-06 20:15:44Z trhodes $
33 #include <sys/param.h>
34 #include <sys/sysctl.h>
43 extern int __sysctl(const int *name, u_int namelen, void *oldp,
44 size_t *oldlenp, const void *newp, size_t newlen);
47 sysctl(const int *name, u_int namelen, void *oldp, size_t *oldlenp,
48 const void *newp, size_t newlen)
52 retval = __sysctl(name, namelen, oldp, oldlenp, newp, newlen);
53 if (retval != -1 || errno != ENOENT || name[0] != CTL_USER)
67 if (oldp && *oldlenp < sizeof(_PATH_STDPATH)) {
71 *oldlenp = sizeof(_PATH_STDPATH);
73 memmove(oldp, _PATH_STDPATH, sizeof(_PATH_STDPATH));
77 if (oldp && *oldlenp < sizeof(int)) {
81 *oldlenp = sizeof(int);
86 case USER_BC_BASE_MAX:
87 *(int *)oldp = BC_BASE_MAX;
90 *(int *)oldp = BC_DIM_MAX;
92 case USER_BC_SCALE_MAX:
93 *(int *)oldp = BC_SCALE_MAX;
95 case USER_BC_STRING_MAX:
96 *(int *)oldp = BC_STRING_MAX;
98 case USER_COLL_WEIGHTS_MAX:
99 *(int *)oldp = COLL_WEIGHTS_MAX;
101 case USER_EXPR_NEST_MAX:
102 *(int *)oldp = EXPR_NEST_MAX;
105 *(int *)oldp = LINE_MAX;
107 case USER_RE_DUP_MAX:
108 *(int *)oldp = RE_DUP_MAX;
110 case USER_POSIX2_VERSION:
111 *(int *)oldp = _POSIX2_VERSION;
113 case USER_POSIX2_C_BIND:
120 case USER_POSIX2_C_DEV:
127 case USER_POSIX2_CHAR_TERM:
128 #ifdef POSIX2_CHAR_TERM
134 case USER_POSIX2_FORT_DEV:
135 #ifdef POSIX2_FORT_DEV
141 case USER_POSIX2_FORT_RUN:
142 #ifdef POSIX2_FORT_RUN
148 case USER_POSIX2_LOCALEDEF:
149 #ifdef POSIX2_LOCALEDEF
155 case USER_POSIX2_SW_DEV:
162 case USER_POSIX2_UPE:
169 case USER_STREAM_MAX:
170 *(int *)oldp = FOPEN_MAX;
172 case USER_TZNAME_MAX:
173 *(int *)oldp = NAME_MAX;