mirror of
https://github.com/zerotier/ZeroTierOne.git
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119 lines
3.1 KiB
C
119 lines
3.1 KiB
C
/* libanode: the Anode C reference implementation
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* Copyright (C) 2009-2010 Adam Ierymenko <adam.ierymenko@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <stdlib.h>
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#include "environment.h"
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#ifdef WINDOWS
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#include <windows.h>
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#else
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#include <sys/stat.h>
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#include <string.h>
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#endif
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static char Anode_cache_base[1024] = { 0 };
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const char *Anode_get_cache()
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{
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if (Anode_cache_base[0])
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return Anode_cache_base;
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#ifdef WINDOWS
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#else
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char tmp[1024];
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char home[1024];
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unsigned int i;
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struct stat st;
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const char *_home = getenv("HOME");
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if (!_home)
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return (const char *)0;
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for(i=0;i<sizeof(home);++i) {
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home[i] = _home[i];
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if (!home[i]) {
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if (i == 0)
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return (const char *)0;
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else if (home[i-1] == ANODE_PATH_SEPARATOR)
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home[i-1] = (char)0;
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break;
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}
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}
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if (i == sizeof(home))
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return (const char *)0;
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#ifdef __APPLE__
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snprintf(tmp,sizeof(tmp),"%s%cLibrary",home,ANODE_PATH_SEPARATOR);
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tmp[sizeof(tmp)-1] = (char)0;
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if (!stat(tmp,&st)) {
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sprintf(tmp,"%s%cLibrary%cCaches",home,ANODE_PATH_SEPARATOR,ANODE_PATH_SEPARATOR);
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if (stat(tmp,&st)) {
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if (mkdir(tmp,0700))
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return (const char *)0;
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}
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snprintf(Anode_cache_base,sizeof(Anode_cache_base),"%s%ccom.zerotier.anode",tmp,ANODE_PATH_SEPARATOR);
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Anode_cache_base[sizeof(Anode_cache_base)-1] = (char)0;
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if (stat(Anode_cache_base,&st)) {
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if (mkdir(Anode_cache_base,0700)) {
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Anode_cache_base[0] = (char)0;
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return (const char *)0;
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}
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}
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return Anode_cache_base;
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}
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#endif
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snprintf(tmp,sizeof(tmp),"%s%c.anode",home,ANODE_PATH_SEPARATOR);
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tmp[sizeof(tmp)-1] = (char)0;
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if (stat(tmp,&st)) {
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if (mkdir(tmp,0700)) {
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Anode_cache_base[0] = (char)0;
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return (const char *)0;
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}
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}
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snprintf(Anode_cache_base,sizeof(Anode_cache_base),"%s%ccaches",tmp,ANODE_PATH_SEPARATOR);
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Anode_cache_base[sizeof(Anode_cache_base)-1] = (char)0;
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if (stat(Anode_cache_base,&st)) {
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if (mkdir(Anode_cache_base,0700)) {
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Anode_cache_base[0] = (char)0;
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return (const char *)0;
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}
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}
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return Anode_cache_base;
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#endif
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}
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char *Anode_get_cache_sub(const char *cache_subdir,char *buf,unsigned int len)
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{
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struct stat st;
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const char *cache_base = Anode_get_cache();
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if (!len)
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return (char *)0;
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if (!cache_base)
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return (char *)0;
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snprintf(buf,len,"%s%c%s",cache_base,ANODE_PATH_SEPARATOR,cache_subdir);
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buf[len-1] = (char)0;
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if (stat(buf,&st)) {
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if (mkdir(buf,0700))
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return (char *)0;
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}
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return buf;
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}
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