start to track Daniel's version

[util-vserver.git] / lib_internal / unify-deunify.c

diff --git a/lib_internal/unify-deunify.c b/lib_internal/unify-deunify.c
deleted file mode 100644 (file)
index 96b76a6..0000000
--- a/lib_internal/unify-deunify.c
+++ /dev/null
@@ -1,125 +0,0 @@
-// $Id: unify-deunify.c 942 2004-02-18 04:48:24Z ensc $    --*- c -*--
-
-// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
-//  
-// This program is free software; you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation; version 2 of the License.
-//  
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//  
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-
-#ifdef HAVE_CONFIG_H
-#  include <config.h>
-#endif
-
-#include "unify.h"
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <utime.h>
-#include <fcntl.h>
-#include <errno.h>
-
-#define ENSC_WRAPPERS_IO       1
-#include <wrappers.h>
-
-bool
-Unify_deUnify(char const *dst)
-{
-  size_t               l = strlen(dst);
-  char                 tmpfile[l + sizeof(";XXXXXX")];
-  int                  fd_src, fd_tmp;
-  struct stat          st;
-  struct utimbuf       utm;
-
-  fd_src = open(dst, O_RDONLY);
-  if (fd_src==-1) {
-    perror("open()");
-    return false;
-  }
-
-  if (fstat(fd_src, &st)==-1) {
-    perror("fstat()");
-    close(fd_src);
-    return false;
-  }
-  
-  memcpy(tmpfile,   dst, l);
-  memcpy(tmpfile+l, ";XXXXXX", 8);
-  fd_tmp = mkstemp(tmpfile);
-
-  if (fd_tmp==-1) {
-    perror("mkstemp()");
-    tmpfile[0] = '\0';
-    goto err;
-  }
-
-  if (fchown(fd_tmp, st.st_uid, st.st_gid)==-1 ||
-      fchmod(fd_tmp, st.st_mode)==-1) {
-    perror("fchown()/fchmod()");
-    goto err;
-  }
-
-  // todo: acl?
-
-  for (;;) {
-    char       buf[0x4000];
-    ssize_t    len = read(fd_src, buf, sizeof buf);
-    if (len==-1) {
-      perror("read()");
-      goto err;
-    }
-    if (len==0) break;
-
-    if (!WwriteAll(fd_tmp, buf, len, 0)) goto err;
-  }
-
-  if (close(fd_src)==-1) {
-    perror("close()");
-    goto err;
-  }
-  if (close(fd_tmp)==-1) {
-    perror("close()");
-    goto err;
-  }
-  
-  utm.actime  = st.st_atime;
-  utm.modtime = st.st_mtime;
-
-  // ALERT: race !!!
-  if (utime(tmpfile, &utm)==-1) {
-    perror("utime()");
-    goto err1;
-  }
-
-  if (unlink(dst)==-1) {
-    perror("unlink()");
-    goto err1;
-  }
-  
-  // ALERT: race !!!
-  if (rename(tmpfile, dst)==-1) {
-    perror("FATAL error in rename()");
-    _exit(1);
-  }
-
-  return true;
-  
-  err:
-  close(fd_src);
-  close(fd_tmp);
-  err1:
-  if (tmpfile[0]) unlink(tmpfile);
-
-  return false;
-}