1 files changed, 118 insertions, 0 deletions
diff --git a/attic/historic/anode/libanode/impl/environment.c b/attic/historic/anode/libanode/impl/environment.c
new file mode 100644
index 00000000..16e8ebe3
--- /dev/null
+++ b/attic/historic/anode/libanode/impl/environment.c
@@ -0,0 +1,118 @@
+/* libanode: the Anode C reference implementation
+ * Copyright (C) 2009-2010 Adam Ierymenko <adam.ierymenko@gmail.com>
+ *
+ * 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, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * 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, see <http://www.gnu.org/licenses/>. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "environment.h"
+
+#ifdef WINDOWS
+#include <windows.h>
+#else
+#include <sys/stat.h>
+#include <string.h>
+#endif
+
+static char Anode_cache_base[1024] = { 0 };
+
+const char *Anode_get_cache()
+{
+  if (Anode_cache_base[0])
+    return Anode_cache_base;
+
+#ifdef WINDOWS
+#else
+  char tmp[1024];
+  char home[1024];
+  unsigned int i;
+  struct stat st;
+  const char *_home = getenv("HOME");
+
+  if (!_home)
+    return (const char *)0;
+  for(i=0;i<sizeof(home);++i) {
+    home[i] = _home[i];
+    if (!home[i]) {
+      if (i == 0)
+        return (const char *)0;
+      else if (home[i-1] == ANODE_PATH_SEPARATOR)
+        home[i-1] = (char)0;
+      break;
+    }
+  }
+  if (i == sizeof(home))
+    return (const char *)0;
+
+#ifdef __APPLE__
+  snprintf(tmp,sizeof(tmp),"%s%cLibrary",home,ANODE_PATH_SEPARATOR);
+  tmp[sizeof(tmp)-1] = (char)0;
+  if (!stat(tmp,&st)) {
+    sprintf(tmp,"%s%cLibrary%cCaches",home,ANODE_PATH_SEPARATOR,ANODE_PATH_SEPARATOR);
+    if (stat(tmp,&st)) {
+      if (mkdir(tmp,0700))
+        return (const char *)0;
+    }
+    snprintf(Anode_cache_base,sizeof(Anode_cache_base),"%s%ccom.zerotier.anode",tmp,ANODE_PATH_SEPARATOR);
+    Anode_cache_base[sizeof(Anode_cache_base)-1] = (char)0;
+    if (stat(Anode_cache_base,&st)) {
+      if (mkdir(Anode_cache_base,0700)) {
+        Anode_cache_base[0] = (char)0;
+        return (const char *)0;
+      }
+    }
+    return Anode_cache_base;
+  }
+#endif
+
+  snprintf(tmp,sizeof(tmp),"%s%c.anode",home,ANODE_PATH_SEPARATOR);
+  tmp[sizeof(tmp)-1] = (char)0;
+  if (stat(tmp,&st)) {
+    if (mkdir(tmp,0700)) {
+      Anode_cache_base[0] = (char)0;
+      return (const char *)0;
+    }
+  }
+  snprintf(Anode_cache_base,sizeof(Anode_cache_base),"%s%ccaches",tmp,ANODE_PATH_SEPARATOR);
+  Anode_cache_base[sizeof(Anode_cache_base)-1] = (char)0;
+  if (stat(Anode_cache_base,&st)) {
+    if (mkdir(Anode_cache_base,0700)) {
+      Anode_cache_base[0] = (char)0;
+      return (const char *)0;
+    }
+  }
+
+  return Anode_cache_base;
+#endif
+}
+
+char *Anode_get_cache_sub(const char *cache_subdir,char *buf,unsigned int len)
+{
+  struct stat st;
+  const char *cache_base = Anode_get_cache();
+
+  if (!len)
+    return (char *)0;
+  if (!cache_base)
+    return (char *)0;
+
+  snprintf(buf,len,"%s%c%s",cache_base,ANODE_PATH_SEPARATOR,cache_subdir);
+  buf[len-1] = (char)0;
+  if (stat(buf,&st)) {
+    if (mkdir(buf,0700))
+      return (char *)0;
+  }
+
+  return buf;
+}