Added makepath function to support

src/openalpr/support/filesystem.cpp

@@ -141,4 +141,58 @@ namespace alpr
     return filename.substr(0, lastindex); 
   }
   
+  
+  static int makeDir(const char *path, mode_t mode)
+  {
+    struct stat            st;
+    int             status = 0;
+
+    if (stat(path, &st) != 0)
+    {
+        /* Directory does not exist. EEXIST for race condition */
+        if (mkdir(path, mode) != 0 && errno != EEXIST)
+            status = -1;
+    }
+    else if (!S_ISDIR(st.st_mode))
+    {
+        errno = ENOTDIR;
+        status = -1;
+    }
+
+    return(status);
+  }
+  
+  /**
+  ** makePath - ensure all directories in path exist
+  ** Algorithm takes the pessimistic view and works top-down to ensure
+  ** each directory in path exists, rather than optimistically creating
+  ** the last element and working backwards.
+  */
+  bool makePath(const char* path, mode_t mode)
+  {
+
+    char           *pp;
+    char           *sp;
+    int             status;
+    char           *copypath = strdup(path);
+
+    status = 0;
+    pp = copypath;
+    while (status == 0 && (sp = strchr(pp, '/')) != 0)
+    {
+        if (sp != pp)
+        {
+            /* Neither root nor double slash in path */
+            *sp = '\0';
+            status = makeDir(copypath, mode);
+            *sp = '/';
+        }
+        pp = sp + 1;
+    }
+    if (status == 0)
+        status = makeDir(path, mode);
+    free(copypath);
+    return (status);
+
+  }
 }