uname/sysctl support

[nestedvm.git] / src / org / ibex / nestedvm / support_aux.c

diff --git a/src/org/ibex/nestedvm/support_aux.c b/src/org/ibex/nestedvm/support_aux.c
index c309899..78cc495 100644 (file)
--- a/src/org/ibex/nestedvm/support_aux.c
+++ b/src/org/ibex/nestedvm/support_aux.c
@@ -155,6 +155,19 @@ long _pathconf_r(struct _reent *ptr,const char *path, int name) {
     }
 }
 
+int _sysctl_r(struct _reent *ptr, int *name, int namelen, void *oldp, size_t *oldlen, void *newp, size_t newlen) {
+    if(name[0] != CTL_USER) return _sysctl(name,namelen,oldp,oldlen,newp,newlen);
+    if(newp != NULL) { ptr->_errno = EPERM; return -1; }
+    if(namelen != 2) { ptr->_errno = EINVAL; return -1; }
+    
+    switch(name[1]) {
+        default:
+            fprintf(stderr,"WARNING: sysctl: Unknown name: %d\n",name[1]);
+            ptr->_errno = EINVAL;
+            return -1;
+    }
+}
+
 void sync() {
     /* do nothing*/
 }
@@ -425,6 +438,88 @@ const char *path;
     return(bname);
 }
 
+/* FreeBSD's uname */
+int
+uname(name)
+struct utsname *name;
+{
+       int mib[2], rval;
+       size_t len;
+       char *p;
+       int oerrno;
+    
+       rval = 0;
+    
+       mib[0] = CTL_KERN;
+       mib[1] = KERN_OSTYPE;
+       len = sizeof(name->sysname);
+       oerrno = errno;
+       if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1) {
+               if(errno == ENOMEM)
+                       errno = oerrno;
+               else
+                       rval = -1;
+       }
+       name->sysname[sizeof(name->sysname) - 1] = '\0';
+    
+       mib[0] = CTL_KERN;
+       mib[1] = KERN_HOSTNAME;
+       len = sizeof(name->nodename);
+       oerrno = errno;
+       if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1) {
+               if(errno == ENOMEM)
+                       errno = oerrno;
+               else
+                       rval = -1;
+       }
+       name->nodename[sizeof(name->nodename) - 1] = '\0';
+    
+       mib[0] = CTL_KERN;
+       mib[1] = KERN_OSRELEASE;
+       len = sizeof(name->release);
+       oerrno = errno;
+       if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1) {
+               if(errno == ENOMEM)
+                       errno = oerrno;
+               else
+                       rval = -1;
+       }
+       name->release[sizeof(name->release) - 1] = '\0';
+    
+       /* The version may have newlines in it, turn them into spaces. */
+       mib[0] = CTL_KERN;
+       mib[1] = KERN_VERSION;
+       len = sizeof(name->version);
+       oerrno = errno;
+       if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1) {
+               if (errno == ENOMEM)
+                       errno = oerrno;
+               else
+                       rval = -1;
+       }
+       name->version[sizeof(name->version) - 1] = '\0';
+       for (p = name->version; len--; ++p) {
+               if (*p == '\n' || *p == '\t') {
+                       if (len > 1)
+                               *p = ' ';
+                       else
+                               *p = '\0';
+               }
+       }
+    
+       mib[0] = CTL_HW;
+       mib[1] = HW_MACHINE;
+       len = sizeof(name->machine);
+       oerrno = errno;
+       if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1) {
+               if (errno == ENOMEM)
+                       errno = oerrno;
+               else
+                       rval = -1;
+       }
+       name->machine[sizeof(name->machine) - 1] = '\0';
+       return (rval);
+}
 
 /* FreeBSD's daemon() - modified for nestedvm */
 int