2 * 43BSD_HOSTINFO.C - 4.3BSD compatibility host info syscalls
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35 * $DragonFly: src/sys/emulation/43bsd/43bsd_hostinfo.c,v 1.4 2006/09/05 00:55:44 dillon Exp $
36 * from: DragonFly kern/kern_xxx.c,v 1.7
37 * from: DragonFly kern/kern_sysctl.c,v 1.12
39 * These syscalls used to live in kern/kern_xxx.c and kern/kern_sysctl.c.
42 #include "opt_compat.h"
44 #include <sys/param.h>
45 #include <sys/systm.h>
46 #include <sys/sysproto.h>
47 #include <sys/kernel.h>
50 #include <sys/socket.h>
51 #include <sys/sysctl.h>
52 #include <vm/vm_param.h>
58 sys_ogethostname(struct gethostname_args *uap)
65 name[1] = KERN_HOSTNAME;
66 len = MIN(uap->len, MAXHOSTNAMELEN);
67 hostname = kmalloc(MAXHOSTNAMELEN, M_TEMP, M_WAITOK);
70 error = kernel_sysctl(name, 2, hostname, &len, NULL, 0, NULL);
74 error = copyout(hostname, uap->hostname, len);
76 kfree(hostname, M_TEMP);
84 sys_osethostname(struct sethostname_args *uap)
86 struct thread *td = curthread;
87 struct proc *p = td->td_proc;
95 name[1] = KERN_HOSTNAME;
96 error = priv_check_cred(p->p_ucred, PRIV_SETHOSTNAME, 0);
99 len = MIN(uap->len, MAXHOSTNAMELEN);
100 hostname = kmalloc(MAXHOSTNAMELEN, M_TEMP, M_WAITOK);
102 error = copyin(uap->hostname, hostname, len);
104 kfree(hostname, M_TEMP);
109 error = kernel_sysctl(name, 2, NULL, 0, hostname, len, NULL);
112 kfree(hostname, M_TEMP);
120 sys_ogethostid(struct ogethostid_args *uap)
122 uap->sysmsg_lresult = hostid;
130 sys_osethostid(struct osethostid_args *uap)
132 struct thread *td = curthread;
135 error = priv_check(td, PRIV_ROOT);
138 hostid = uap->hostid;
146 sys_oquota(struct oquota_args *uap)
151 #define KINFO_PROC (0<<8)
152 #define KINFO_RT (1<<8)
153 #define KINFO_VNODE (2<<8)
154 #define KINFO_FILE (3<<8)
155 #define KINFO_METER (4<<8)
156 #define KINFO_LOADAVG (5<<8)
157 #define KINFO_CLOCKRATE (6<<8)
159 /* Non-standard BSDI extension - only present on their 4.3 net-2 releases */
160 #define KINFO_BSDI_SYSINFO (101<<8)
163 * XXX this is bloat, but I hope it's better here than on the potentially
164 * limited kernel stack... -Peter
168 int bsdi_machine; /* "i386" on BSD/386 */
169 /* ^^^ this is an offset to the string, relative to the struct start */
178 int bsdi_ostype; /* "BSD/386" on BSD/386 */
179 int bsdi_osrelease; /* "1.1" on BSD/386 */
191 struct timeval pad16;
192 /* we dont set this, because BSDI's uname used gethostname() instead */
193 int bsdi_hostname; /* hostname on BSD/386 */
195 /* the actual string data is appended here */
199 * this data is appended to the end of the bsdi_si structure during copyout.
200 * The "char *" offsets are relative to the base of the bsdi_si struct.
201 * This contains "FreeBSD\02.0-BUILT-nnnnnn\0i386\0", and these strings
202 * should not exceed the length of the buffer here... (or else!! :-)
204 static char bsdi_strings[80]; /* It had better be less than this! */
210 sys_ogetkerninfo(struct getkerninfo_args *uap)
218 switch (uap->op & 0xff00) {
223 name[3] = (uap->op & 0xff0000) >> 16;
224 name[4] = uap->op & 0xff;
226 error = userland_sysctl(name, 6, uap->where, uap->size,
232 name[1] = KERN_VNODE;
233 error = userland_sysctl(name, 2, uap->where, uap->size,
240 name[2] = uap->op & 0xff;
242 error = userland_sysctl(name, 4, uap->where, uap->size,
249 error = userland_sysctl(name, 2, uap->where, uap->size,
256 error = userland_sysctl(name, 2, uap->where, uap->size,
262 name[1] = VM_LOADAVG;
263 error = userland_sysctl(name, 2, uap->where, uap->size,
267 case KINFO_CLOCKRATE:
269 name[1] = KERN_CLOCKRATE;
270 error = userland_sysctl(name, 2, uap->where, uap->size,
274 case KINFO_BSDI_SYSINFO: {
276 * this is pretty crude, but it's just enough for uname()
277 * from BSDI's 1.x libc to work.
278 * *size gives the size of the buffer before the call, and
279 * the amount of data copied after a successful call.
280 * If successful, the return value is the amount of data
281 * available, which can be larger than *size.
283 * BSDI's 2.x product apparently fails with ENOMEM if
284 * *size is too small.
290 bzero((char *)&bsdi_si, sizeof(bsdi_si));
291 bzero(bsdi_strings, sizeof(bsdi_strings));
295 bsdi_si.bsdi_ostype = (s - bsdi_strings) + sizeof(bsdi_si);
299 bsdi_si.bsdi_osrelease = (s - bsdi_strings) + sizeof(bsdi_si);
300 strcpy(s, osrelease);
303 bsdi_si.bsdi_machine = (s - bsdi_strings) + sizeof(bsdi_si);
307 needed = sizeof(bsdi_si) + (s - bsdi_strings);
309 if (uap->where == NULL || (uap->size == NULL)) {
310 /* process is asking how much buffer to supply.. */
316 if ((error = copyin(uap->size, &size, sizeof(size))) != 0)
319 /* if too much buffer supplied, trim it down */
323 /* how much of the buffer is remaining */
326 if ((error = copyout((char *)&bsdi_si, uap->where, left)) != 0)
329 /* is there any point in continuing? */
330 if (left > sizeof(bsdi_si)) {
331 left -= sizeof(bsdi_si);
332 error = copyout(&bsdi_strings,
333 uap->where + sizeof(bsdi_si), left);
344 uap->sysmsg_iresult = (int)size;
346 error = copyout(&size, uap->size, sizeof(size));