Hanesi Belli Olmayan Dizi

char *dizi;
gets(dizi);

#include <stdio.h>
#include <stdlib.h>

char * read_line(FILE *input)
{
    char *line = (char *)malloc(sizeof(char));
    char c = fgetc(input);
    int size = 1;
    while((c != ' 
 ') && (c != EOF)){
        line[size-1] = c;
        size += 1;
        line = realloc(line , size);
        c = fgetc(input);
    }
    line[size-1] = '\0';
    return line;
}

int main(){
	char *line = read_line(stdin);
	
	printf("Okunan : %s " , line);
	
	return 0;
}