util-vserver-0.30.208

[util-vserver.git] / lib / getvservervdir.c

diff --git a/lib/getvservervdir.c b/lib/getvservervdir.c
new file mode 100644 (file)
index 0000000..2d8c79a
--- /dev/null
+++ b/lib/getvservervdir.c
@@ -0,0 +1,113 @@
+// $Id: getvservervdir.c,v 1.5 2005/03/22 14:59:46 ensc Exp $    --*- c -*--
+
+// Copyright (C) 2003 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 "vserver.h"
+#include "internal.h"
+#include "pathconfig.h"
+
+#include <string.h>
+#include <unistd.h>
+#include <sys/param.h>
+#include <fcntl.h>
+
+static char *
+getDir(char *dir, bool physical)
+{
+  int          fd;
+  char         tmp[PATH_MAX];
+
+  if (!physical) return strdup(dir);
+
+  fd = open(".", O_RDONLY);
+  if (fd==-1) return 0;
+
+  if (chdir(dir)!=-1 &&
+      getcwd(tmp, sizeof tmp)!=0)
+    dir = strdup(tmp);
+  else
+    dir = 0;
+
+  if (fchdir(fd)==-1) {
+    if (write(2, "FATAL error: failed to restore directory\n", 41)!=41) { /*...*/ }
+    abort();
+  }
+  close(fd);
+  return dir;
+}
+       
+char *
+vc_getVserverVdir(char const *id, vcCfgStyle style, bool physical)
+{
+  size_t               l1   = strlen(id);
+  char                 *res = 0;
+
+  if (style==vcCFG_NONE || style==vcCFG_AUTO)
+    style = vc_getVserverCfgStyle(id);
+
+  switch (style) {
+    case vcCFG_NONE            :  return 0;
+    case vcCFG_LEGACY          :
+    {
+      char             buf[sizeof(DEFAULT_VSERVERDIR "/") + l1];
+
+      strcpy(buf,                                    DEFAULT_VSERVERDIR "/");
+      strcpy(buf+sizeof(DEFAULT_VSERVERDIR "/") - 1, id);
+
+      res = getDir(buf, physical);
+      break;
+    }
+    
+    case vcCFG_RECENT_SHORT    :
+    {
+      char             buf[sizeof(CONFDIR) + l1 + sizeof("//vdir") - 1];
+
+      strcpy(buf,                            CONFDIR "/");
+      strcpy(buf+sizeof(CONFDIR "/")    - 1, id);
+      strcpy(buf+sizeof(CONFDIR "/")+l1 - 1, "/vdir");
+      
+      res = getDir(buf, physical);
+      break;
+    }
+
+    case vcCFG_RECENT_FULL     :
+    {
+      char             buf[l1 + sizeof("/vdir")];
+
+      strcpy(buf,    id);
+      strcpy(buf+l1, "/vdir");
+
+      res = getDir(buf, physical);
+      break;
+    }
+
+    default                    :  return 0;
+  }
+
+  // ignore physical-case; we went into the directory while determining
+  // the physical path so the directory exists
+  if (!physical && !utilvserver_isDirectory(res, true)) {
+    free(res);
+    res = 0;
+  }
+
+  return res;
+}