Fix __fxstat which is called from fstat. Remove obsolete fstat64.

sysdeps/nacl/fxstat.c

+
+#include <errno.h>
+#include <stddef.h>
+#include <sys/stat.h>
+
+#include <kernel_stat.h>
+#include <nacl_stat.h>
+#include <nacl_syscalls.h>
+
+void __nacl_abi_stat_to_stat (struct nacl_abi_stat *nacl_st,
+                                struct stat *st)
+{
+  st->st_dev = nacl_st->nacl_abi_st_dev;
+  st->st_mode = nacl_st->nacl_abi_st_mode;
+  st->st_nlink = nacl_st->nacl_abi_st_nlink;
+  st->st_uid = nacl_st->nacl_abi_st_uid;
+  st->st_gid = nacl_st->nacl_abi_st_gid;
+  st->st_rdev = nacl_st->nacl_abi_st_rdev;
+  st->st_size = nacl_st->nacl_abi_st_size;
+  st->st_blksize = nacl_st->nacl_abi_st_blksize;
+  st->st_blocks = nacl_st->nacl_abi_st_blocks;
+  st->st_atim.tv_sec = nacl_st->nacl_abi_st_atime;
+  st->st_atim.tv_nsec = 0;
+  st->st_mtim.tv_sec = nacl_st->nacl_abi_st_mtime;
+  st->st_mtim.tv_nsec = 0;
+  st->st_ctim.tv_sec = nacl_st->nacl_abi_st_ctime;
+  st->st_ctim.tv_nsec = 0;
+  st->st_ino = nacl_st->nacl_abi_st_ino;
+}
+
+int __fxstat (int vers, int fd, struct stat *buf)
+{
+  if (buf == NULL) {
+    errno = EFAULT;
+    return -1;
+  }
+  struct nacl_abi_stat nacl_buf;
+  int result = NACL_SYSCALL (fstat) (fd, &nacl_buf);
+  if (result < 0) {
+    errno = -result;
+    return -1;
+  }
+  __nacl_abi_stat_to_stat (&nacl_buf, buf);
+  return result;
+}
+hidden_def (__fxstat)
+hidden_def (__fxstat64)
+/* stat and stat64 are the same in nacl. */
+/* Next lines are for true believers. */
+extern __typeof (__fxstat64) __fxstat64 __attribute__ ((alias ("__fxstat")));
+extern __typeof (__nacl_abi_stat_to_stat64) __nacl_abi_stat_to_stat64 __attribute__ ((alias ("__nacl_abi_stat_to_stat")));