#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
+#include <sys/sysctl.h>
+#include <sys/utsname.h>
+#include <nestedvm/sockets.h>
+#include <paths.h>
int _syscall_set_errno(struct _reent *ptr, int err) {
ptr->_errno = -err;
rt f(t1 a, t2 b, t3 c, t4 d) { return _##f##_r(_REENT,a,b,c,d); }
#define REENT_WRAPPER4(f,t1,t2,t3,t4) REENT_WRAPPER4R(f,int,t1,t2,t3,t4)
+#define REENT_WRAPPER5R(f,rt,t1,t2,t3,t4,t5) \
+extern rt _##f##_r(struct _reent *ptr, t1 a, t2 b, t3 c, t4 d, t5 e); \
+rt f(t1 a, t2 b, t3 c, t4 d, t5 e) { return _##f##_r(_REENT,a,b,c,d,e); }
+#define REENT_WRAPPER5(f,t1,t2,t3,t4,t5) REENT_WRAPPER5R(f,int,t1,t2,t3,t4,t5)
+
+#define REENT_WRAPPER6R(f,rt,t1,t2,t3,t4,t5,t6) \
+extern rt _##f##_r(struct _reent *ptr, t1 a, t2 b, t3 c, t4 d, t5 e, t6 f); \
+rt f(t1 a, t2 b, t3 c, t4 d, t5 e, t6 f) { return _##f##_r(_REENT,a,b,c,d,e,f); }
+#define REENT_WRAPPER6(f,t1,t2,t3,t4,t5,t6) REENT_WRAPPER6R(f,int,t1,t2,t3,t4,t5,t6)
+
REENT_WRAPPER2(mkdir,const char *,mode_t)
REENT_WRAPPER2(access,const char *,int)
REENT_WRAPPER1(rmdir,const char *)
REENT_WRAPPER2(ftruncate,int,off_t)
REENT_WRAPPER1(usleep,unsigned int)
REENT_WRAPPER2(mkfifo,const char *, mode_t)
-REENT_WRAPPER2(_open_socket,const char *,int)
-REENT_WRAPPER1(_listen_socket,int)
-REENT_WRAPPER1(_accept,int)
+REENT_WRAPPER3(klogctl,int,char*,int)
+REENT_WRAPPER2R(realpath,char *,const char *,char *)
+REENT_WRAPPER6(_sysctl,int *,int, void *, size_t*, void *, size_t)
+REENT_WRAPPER6(sysctl,int *, int, void *, size_t*, void *, size_t)
+REENT_WRAPPER2(getpriority,int,int)
+REENT_WRAPPER3(setpriority,int,int,int)
+REENT_WRAPPER3(connect,int,const struct sockaddr *,socklen_t)
+REENT_WRAPPER3(socket,int,int,int)
+REENT_WRAPPER3(_resolve_hostname,const char *,char*,size_t*)
+REENT_WRAPPER3(accept,int,struct sockaddr *,socklen_t*)
+REENT_WRAPPER5(getsockopt,int,int,int,void*,socklen_t*)
+REENT_WRAPPER5(setsockopt,int,int,int,const void*,socklen_t)
+REENT_WRAPPER3(bind,int,const struct sockaddr *,socklen_t)
+REENT_WRAPPER2(listen,int,int)
+REENT_WRAPPER2(shutdown,int,int)
extern int __execve_r(struct _reent *ptr, const char *path, char *const argv[], char *const envp[]);
int _execve(const char *path, char *const argv[], char *const envp[]) {
}
}
+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*/
}
}
/*
+ * Networking/Socket stuff
+ */
+
+/* This should really be part of the newlib _reent structure */
+int h_errno;
+
+char *inet_ntoa(struct in_addr in) {
+ static char buf[18];
+ const unsigned char *p = (void*) ∈
+ snprintf(buf,sizeof(buf),"%u.%u.%u.%u",p[0],p[1],p[2],p[3]);
+ return buf;
+}
+
+struct servent *getservbyname(const char *name,const char *proto) {
+ return NULL;
+}
+
+static const char *h_errlist[] = { "No Error","Unknown host", "Host name lookup failure","Unknown server error","No address associated with name" };
+
+const char *hstrerror(int err) {
+ if(err < 0 || err > 4) return "Unknown Error";
+ return h_errlist[err];
+}
+
+void herror(const char *string) {
+ fprintf(stderr,"%s: %s\n",string,hstrerror(h_errno));
+}
+
+extern int _resolve_hostname(const char *, char *buf, size_t *size);
+
+struct hostent *gethostbyname(const char *hostname) {
+#define MAX_ADDRS 256
+ static struct hostent hostent;
+ static char saved_hostname[128];
+ static char *addr_list[MAX_ADDRS+1];
+ static char addr_list_buf[MAX_ADDRS*sizeof(struct in_addr)];
+ static char *aliases[1];
+
+ unsigned char buf[MAX_ADDRS*sizeof(struct in_addr)];
+ size_t size = sizeof(buf);
+ int err,i,n=0;
+
+ err = _resolve_hostname(hostname,buf,&size);
+ if(err != 0) { h_errno = err; return NULL; }
+
+ memcpy(addr_list_buf,buf,size);
+ for(i=0;i<size;i += sizeof(struct in_addr)) addr_list[n++] = &addr_list_buf[i];
+ addr_list[n] = NULL;
+ strncpy(saved_hostname,hostname,sizeof(saved_hostname));
+ aliases[0] = NULL;
+
+ hostent.h_name = saved_hostname;
+ hostent.h_aliases = aliases;
+ hostent.h_addrtype = AF_INET;
+ hostent.h_length = sizeof(struct in_addr);
+ hostent.h_addr_list = addr_list;
+
+ return &hostent;
+}
+
+/*
* Other People's Code
*/
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
+daemon(nochdir, noclose)
+int nochdir, noclose;
+{
+ int fd;
+
+ switch (fork()) {
+ case -1:
+ return (-1);
+ case 0:
+ break;
+ default:
+ _exit(0);
+ }
+
+ /*if (setsid() == -1)
+ return (-1);*/
+
+ if (!nochdir)
+ (void)chdir("/");
+
+ if (!noclose && (fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) {
+ (void)dup2(fd, STDIN_FILENO);
+ (void)dup2(fd, STDOUT_FILENO);
+ (void)dup2(fd, STDERR_FILENO);
+ if (fd > 2)
+ (void)close(fd);
+ }
+ return (0);
+}
projects / nestedvm.git / blobdiff