books/apitue/sample-code/05/gdb-examples/buf.c

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2024-01-20 14:39:54 +00:00
/* This file is part of the sample code and exercises
* used by the class "Advanced Programming in the UNIX
* Environment" taught by Jan Schaumann
* <jschauma@netmeister.org> at Stevens Institute of
* Technology.
*
* This file is in the public domain.
*
* You don't have to, but if you feel like
* acknowledging where you got this code, you may
* reference me by name, email address, or point
* people to the course website:
* https://stevens.netmeister.org/631/
*/
/* This file is used together with the file 'main.c' to
* help students use gdb(1) to understand
* manipulations of strings and buffers.
*
* See https://youtu.be/hgcj7iAxhhU as well as
* 'pointer.c'
*/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#define DATA2 "Hello, I'm buf2!"
#define DATA3 "Hello, I'm buf3!"
void
printBufs(long n) {
char *buf = malloc(n);
char *buf2 = malloc(8);
char *buf3 = malloc(8);
strcpy(buf2, DATA2);
strcpy(buf3, DATA3);
gets(buf);
printf("buf is : '%s'\n", buf);
printf("buf2 is: '%s'\n", buf2);
printf("buf3 is: '%s'\n", buf3);
}