Thread: segmentation fault

This is very weird, I have checked many times and still think that there is nothing wrong, but I got a message of segmentation fault. Can someone explain to me or correct my code.

Code:

#include "stdio.h"

Code:

int main()
{
  getKey();
return0;
}

void getKey()
{
  FILE *fp, *fp2;//, *fp3;
char line[100] = "#the following key is for lastfirst\n";
  char content[1206], *z;
  fp = popen("ssh-keygen -t rsa -N \'\' -q -f lastfirst", "w");
  fp2 = fopen("lastfirst.pub", "r");
// fp3 = fopen("lastfirst.temp", "w");
//fprintf(fp3, line);


  z = fgets(content, sizeof(content), fp2);
  while(z!=EOF)
    {
      printf("%s", content);
    }


  fclose(fp2);
//printf("%s", "end it");
  pclose(fp);
//  fclose(fp2);
}