I'm getting segmentation fault error in terminal (on mac) for a simple program

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I'm trying to implement the ls command in terminal by writing out the code but I am getting 'Segmentation fault' error. I have no idea why. I've been trying to figure it out all day :(

#include "sys/types.h"
#include "dirent.h"
#include "stdio.h"

int main (int argc, char *argv[]){

    DIR *dp;

    struct dirent *dirp;

    if (argc == 1)
        dp == opendir("./");
    else
        dp == opendir(argv[1]);

    while( (dirp=readdir(dp)) != NULL)
        printf("%s\n",dirp -> d_name);

    closedir(dp);


    return 0;
}

asked 22 secs ago

user4062234

1

I'm getting segmentation fault error in terminal (on mac) for a simple program