Fix compile error on some platform

src/misc.h

@@ -8,8 +8,11 @@
 #include <yaml-cpp/yaml.h>
 
 #ifdef _WIN32
+#include <unistd.h>
 #define PATH_SLASH "\\"
 #else
+#include <sys/types.h>
+#include <sys/stat.h>
 #define PATH_SLASH "//"
 #endif // _WIN32
 
@@ -70,11 +73,13 @@ static inline bool strFind(const std::string &str, const std::string &target)
     return str.find(target) != str.npos;
 }
 
-static inline bool startsWith(const std::string &hay, const std::string &needle) {
+static inline bool startsWith(const std::string &hay, const std::string &needle)
+{
     return hay.substr(0, needle.length()) == needle;
 }
 
-static inline bool endsWith(const std::string &hay, const std::string &needle) {
+static inline bool endsWith(const std::string &hay, const std::string &needle)
+{
     std::string::size_type hl = hay.length(), nl = needle.length();
     return hl >= nl && hay.substr(hl - nl, nl) == needle;
 }
@@ -117,6 +122,15 @@ namespace std
 }
 #endif // HAVE_TO_STRING
 
+static inline int md(const char *path)
+{
+#ifdef _WIN32
+    return mkdir(path);
+#else
+    return mkdir(path, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
+#endif // _WIN32
+}
+
 #ifdef _WIN32
 void StringToWstring(std::wstring& szDst, const std::string &str);
 #endif // _WIN32

src/subexport.cpp

@@ -1796,7 +1796,7 @@ std::string netchToSSD(std::vector<nodeInfo> &nodes, std::string &group, std::st
             const time_t rawtime = to_int(expiry);
             char buffer[30];
             struct tm *dt = localtime(&rawtime);
-            strftime(buffer, sizeof(buffer), "%F %R", dt);
+            strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M", dt);
             writer.Key("expiry");
             writer.String(buffer);
         }

src/webget.cpp

@@ -9,6 +9,10 @@
 #include "misc.h"
 #include "logger.h"
 
+#ifdef _WIN32
+#define _stat stat
+#endif // _WIN32
+
 extern bool print_debug_info;
 
 //std::string user_agent_str = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36";
@@ -89,11 +93,11 @@ std::string webGet(std::string url, std::string proxy, std::string &response_hea
     // cache system
     if(cache_ttl > 0)
     {
-        mkdir("cache");
+        md("cache");
         std::string url_md5 = getMD5(url);
         std::string path = "cache/" + url_md5;
-        struct _stat result;
+        struct stat result;
-        if(_stat(path.data(), &result) == 0)
+        if(stat(path.data(), &result) == 0)
         {
             time_t mtime = result.st_mtime, now = time(NULL);
             if(difftime(now, mtime) <= cache_ttl)