More check of executable file

src/fileutils.c

@@ -14,12 +14,23 @@
 #include "debug.h"
 #include "fileutils.h"
 
-int FileExist(const char* filename)
+int FileExist(const char* filename, int flags)
 {
     struct stat sb;
     if (stat(filename, &sb) == -1)
         return 0;
     // check type of file? should be executable, or folder
+    if(flags&IS_FILE) {
+        if(!S_ISREG(sb.st_mode))
+            return 0;
+    } else {
+        if(!S_ISDIR(sb.st_mode))
+            return 0;
+    }
+    if(flags&IS_EXECUTABLE) {
+        if(sb.st_mode&S_IXUSR!=S_IXUSR)
+            return 0;   // nope
+    }
     return 1;
 }
 
@@ -29,7 +40,7 @@ char* ResolveFile(const char* filename, path_collection_t* paths)
     for (int i=0; i<paths->size; ++i) {
         strcpy(p, paths->paths[i]);
         strcat(p, filename);
-        if(FileExist(p))
+        if(FileExist(p, IS_FILE))
             return strdup(p);
     }
 

src/fileutils.h

@@ -3,7 +3,11 @@
 
 #include "pathcoll.h"
 
-int FileExist(const char* filename);    // 0 : doesn't exist, 1: Does exist
+#define IS_EXECUTABLE   (1<<0)
+#define IS_FILE         (1<<1)
+       
+
+int FileExist(const char* filename, int flags);    // 0 : doesn't exist, 1: Does exist
 char* ResolveFile(const char* filename, path_collection_t* paths); // find a file, using Path if needed
 
 #endif //__FILEUTILS_H_

src/main.c

@@ -90,7 +90,7 @@ int main(int argc, const char **argv) {
         FreeBox86Context(&context);
         return -1;
     }
-    if(!FileExist(context->argv[0])) {
+    if(!FileExist(context->argv[0], IS_FILE|IS_EXECUTABLE)) {
         printf_debug(DEBUG_NONE, "Error, file is not found\n", context->argv[0]);
         FreeBox86Context(&context);
         return -1;