bsd/kern/kern_sysctl.c

220 sysctl_struct(user_addr_t oldp, size_t *oldlenp, user_addr_t newp,
444 	    uap->oldlenp,
454 	if (uap->oldlenp != USER_ADDR_NULL) {
455 		uint64_t	oldlen64 = fuulong(uap->oldlenp);
546 	if (uap->oldlenp != USER_ADDR_NULL)
547 	        error = suulong(uap->oldlenp, oldlen);
576 	size_t *oldlenp = &req->oldlen;	/* user buffer copy out size */
588 		error = sysctl_rdint(oldp, oldlenp, newp,
619 	size_t *oldlenp = &req->oldlen;	/* user buffer copy out size */
648 	error =  sysctl_rdint(oldp, oldlenp, newp,
675 	size_t *oldlenp=NULL;
679 	oldlenp = &(req->oldlen);
684 	if(oldlenp) {
692 			if(*oldlenp < currlen)
809 	size_t *oldlenp = &req->oldlen;	/* user buffer copy out size */
824 	error = sysctl_int(oldp, oldlenp, newp, newlen, &tmp);
888 	size_t *oldlenp = &req->oldlen;	/* user buffer copy out size */
905 		error = sysctl_rdstring(oldp, oldlenp, newp, cdp->debugname);
908 		error = sysctl_int(oldp, oldlenp, newp, newlen, cdp->debugvar);
954 sysctl_int(user_addr_t oldp, size_t *oldlenp,
959 	if (oldp != USER_ADDR_NULL && oldlenp == NULL)
961 	if (oldp && *oldlenp < sizeof(int))
965 	*oldlenp = sizeof(int);
979 sysctl_rdint(user_addr_t oldp, size_t *oldlenp, user_addr_t newp, int val)
983 	if (oldp != USER_ADDR_NULL && oldlenp == NULL)
985 	if (oldp && *oldlenp < sizeof(int))
989 	*oldlenp = sizeof(int);
1000 sysctl_quad(user_addr_t oldp, size_t *oldlenp,
1005 	if (oldp != USER_ADDR_NULL && oldlenp == NULL)
1007 	if (oldp && *oldlenp < sizeof(quad_t))
1011 	*oldlenp = sizeof(quad_t);
1023 sysctl_rdquad(user_addr_t oldp, size_t *oldlenp, user_addr_t newp, quad_t val)
1027 	if (oldp != USER_ADDR_NULL && oldlenp == NULL)
1029 	if (oldp && *oldlenp < sizeof(quad_t))
1033 	*oldlenp = sizeof(quad_t);
1050 sysctl_trstring(user_addr_t oldp, size_t *oldlenp,
1055 	if (oldp != USER_ADDR_NULL && oldlenp == NULL)
1058 	if (oldp && (len < 0 || *oldlenp < 1))
1060 	if (oldp && (*oldlenp < (size_t)len))
1061 		copylen = *oldlenp + 1;
1064 	*oldlenp = copylen - 1; /* deal with NULL strings correctly */
1070 			oldp += *oldlenp;
1087 sysctl_string(user_addr_t oldp, size_t *oldlenp,
1092 	if (oldp != USER_ADDR_NULL && oldlenp == NULL)
1095 	if (oldp && (len < 0 || *oldlenp < (size_t)len))
1099 	*oldlenp = len -1; /* deal with NULL strings correctly */
1115 sysctl_rdstring(user_addr_t oldp, size_t *oldlenp,
1120 	if (oldp != USER_ADDR_NULL && oldlenp == NULL)
1123 	if (oldp && *oldlenp < (size_t)len)
1127 	*oldlenp = len;
1138 sysctl_struct(user_addr_t oldp, size_t *oldlenp,
1143 	if (oldp != USER_ADDR_NULL && oldlenp == NULL)
1145 	if (oldp && (len < 0 || *oldlenp < (size_t)len))
1150 		*oldlenp = len;
1163 sysctl_rdstruct(user_addr_t oldp, size_t *oldlenp,
1168 	if (oldp != USER_ADDR_NULL && oldlenp == NULL)
1170 	if (oldp && (len < 0 || *oldlenp < (size_t)len))
1174 	*oldlenp = len;
1729 	size_t *oldlenp = &req->oldlen;	/* user buffer copy out size */
1765 	        ret = kdbg_control(name, namelen, oldp, oldlenp);
1798 	size_t *oldlenp = &req->oldlen;	/* user buffer copy out size */
1803 	error =  sysctl_procargsx( name, namelen, oldp, oldlenp, current_proc(), 0);
1826 	size_t *oldlenp = &req->oldlen;	/* user buffer copy out size */
1831 	error = sysctl_procargsx( name, namelen, oldp, oldlenp, current_proc(), 1);
1874 	/* when where (oldp from sysctl) is NULL and sizep (oldlenp from sysctl */