How to properly use scandir() in c?

Question

I am trying to store list of files in a char** variable.

scandir() finishes properly but I get a segmentation fault when trying to print the char**.

Here\'s the co

Answer 1

modify the code, it works!

  #include 
  #include 
  #include 
  #include 
  #include 

  void makeList(char ***fileList, int* noOfFiles, char* path){
      struct dirent **fileListTemp;
      *noOfFiles = scandir(path, &fileListTemp, NULL, alphasort);
      int i;
      *fileList = (char**)malloc(*noOfFiles * sizeof(char*));
      printf("total: %d files\n",*noOfFiles);
      for(i = 0; i < *noOfFiles; i++){
          (*fileList)[i] = (char*)malloc(strlen(fileListTemp[i] -> d_name)+1);
          strcpy((*fileList)[i], fileListTemp[i] -> d_name);
          printf("%s\n",(*fileList)[i]);
      }   
      return;
  }

  int main()
  {
      char** fileList;
      int noOfFiles;
      char* path = ".";
      makeList(&fileList, &noOfFiles, path); 
      return 0;
  }

fileList is type of char ***, so *fileList is the fileList variable in main function.

*fileList = (char**)malloc(*noOfFiles * sizeof(char*));

with this statement, *fileList points to allocated memory of array of pointers.
if want to allocate memory for each pointer within the array, we need use (*fileList)[i], other than *fileList[i], the precedence of [] is higher than *.