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;
93 name[1] = KERN_HOSTNAME;
94 error = priv_check_cred(td->td_ucred, PRIV_SETHOSTNAME, 0);
97 len = MIN(uap->len, MAXHOSTNAMELEN);
98 hostname = kmalloc(MAXHOSTNAMELEN, M_TEMP, M_WAITOK);
100 error = copyin(uap->hostname, hostname, len);
102 kfree(hostname, M_TEMP);
107 error = kernel_sysctl(name, 2, NULL, 0, hostname, len, NULL);
110 kfree(hostname, M_TEMP);
118 sys_ogethostid(struct ogethostid_args *uap)
120 uap->sysmsg_lresult = hostid;
128 sys_osethostid(struct osethostid_args *uap)
130 struct thread *td = curthread;
133 error = priv_check(td, PRIV_ROOT);
136 hostid = uap->hostid;
144 sys_oquota(struct oquota_args *uap)
149 #define KINFO_PROC (0<<8)
150 #define KINFO_RT (1<<8)
151 #define KINFO_VNODE (2<<8)
152 #define KINFO_FILE (3<<8)
153 #define KINFO_METER (4<<8)
154 #define KINFO_LOADAVG (5<<8)
155 #define KINFO_CLOCKRATE (6<<8)
157 /* Non-standard BSDI extension - only present on their 4.3 net-2 releases */
158 #define KINFO_BSDI_SYSINFO (101<<8)
161 * XXX this is bloat, but I hope it's better here than on the potentially
162 * limited kernel stack... -Peter
166 int bsdi_machine; /* "i386" on BSD/386 */
167 /* ^^^ this is an offset to the string, relative to the struct start */
176 int bsdi_ostype; /* "BSD/386" on BSD/386 */
177 int bsdi_osrelease; /* "1.1" on BSD/386 */
189 struct timeval pad16;
190 /* we dont set this, because BSDI's uname used gethostname() instead */
191 int bsdi_hostname; /* hostname on BSD/386 */
193 /* the actual string data is appended here */
197 * this data is appended to the end of the bsdi_si structure during copyout.
198 * The "char *" offsets are relative to the base of the bsdi_si struct.
199 * This contains "FreeBSD\02.0-BUILT-nnnnnn\0i386\0", and these strings
200 * should not exceed the length of the buffer here... (or else!! :-)
202 static char bsdi_strings[80]; /* It had better be less than this! */
208 sys_ogetkerninfo(struct getkerninfo_args *uap)
216 switch (uap->op & 0xff00) {
221 name[3] = (uap->op & 0xff0000) >> 16;
222 name[4] = uap->op & 0xff;
224 error = userland_sysctl(name, 6, uap->where, uap->size,
230 name[1] = KERN_VNODE;
231 error = userland_sysctl(name, 2, uap->where, uap->size,
238 name[2] = uap->op & 0xff;
240 error = userland_sysctl(name, 4, uap->where, uap->size,
247 error = userland_sysctl(name, 2, uap->where, uap->size,
254 error = userland_sysctl(name, 2, uap->where, uap->size,
260 name[1] = VM_LOADAVG;
261 error = userland_sysctl(name, 2, uap->where, uap->size,
265 case KINFO_CLOCKRATE:
267 name[1] = KERN_CLOCKRATE;
268 error = userland_sysctl(name, 2, uap->where, uap->size,
272 case KINFO_BSDI_SYSINFO: {
274 * this is pretty crude, but it's just enough for uname()
275 * from BSDI's 1.x libc to work.
276 * *size gives the size of the buffer before the call, and
277 * the amount of data copied after a successful call.
278 * If successful, the return value is the amount of data
279 * available, which can be larger than *size.
281 * BSDI's 2.x product apparently fails with ENOMEM if
282 * *size is too small.
288 bzero((char *)&bsdi_si, sizeof(bsdi_si));
289 bzero(bsdi_strings, sizeof(bsdi_strings));
293 bsdi_si.bsdi_ostype = (s - bsdi_strings) + sizeof(bsdi_si);
297 bsdi_si.bsdi_osrelease = (s - bsdi_strings) + sizeof(bsdi_si);
298 strcpy(s, osrelease);
301 bsdi_si.bsdi_machine = (s - bsdi_strings) + sizeof(bsdi_si);
305 needed = sizeof(bsdi_si) + (s - bsdi_strings);
307 if (uap->where == NULL || (uap->size == NULL)) {
308 /* process is asking how much buffer to supply.. */
314 if ((error = copyin(uap->size, &size, sizeof(size))) != 0)
317 /* if too much buffer supplied, trim it down */
321 /* how much of the buffer is remaining */
324 if ((error = copyout((char *)&bsdi_si, uap->where, left)) != 0)
327 /* is there any point in continuing? */
328 if (left > sizeof(bsdi_si)) {
329 left -= sizeof(bsdi_si);
330 error = copyout(&bsdi_strings,
331 uap->where + sizeof(bsdi_si), left);
342 uap->sysmsg_iresult = (int)size;
344 error = copyout(&size, uap->size, sizeof(size));