Hi all,
I got trouble with reading and writing ( to standard input/output, file, socket whatever...).
I will briefly describe it by giving this example. I want to read a long string from keyboard but i don't know how long it is b4. So i need to know the number of character i will read first. Then i initialize my buffer to fit my desirable string and read this string from standard input.
However, everything is ok until i try to read 12 characters from keyboard. A weird character is automatically added : "ñ". And when i check the string length, it is 15. I don't know why because with other cases, there isn't some things like this happened.
Just a sample code:

#include <stdio.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
main(){
int fd;
char *str;
int a;
char enter[1];
scanf("%d",&a);
str = malloc(a*sizeof(char));
read(0,str,a);
printf("%s ----- %d",str,strlen(str));
}

I have searched but still found nothing related to this.

Thanks