Useful print macros

print_macros.h

#define _GNU_SOURCE
include <stdio.h>

#define print_info(string, ...)                                             \
    do                                                                      \
    {                                                                       \
        printf("[*] %s: " string, program_invocation_name, ##__VA_ARGS__);  \
    } while (0)

#define print_err(string, ...)                          \
    do                                                  \
    {                                                   \
        fprintf(stderr, "[!] %s: %s @ %d: " string,     \
                __FILE__,                               \
                __FUNCTION__,                           \
                __LINE__,                               \
                ##__VA_ARGS__);                         \
    } while (0)

// Clears the screen
#define clrscr() printf("\e[1;1H\e[2J")

// I think this is provided by glibc
// Just contains the name of the program - argv[0]
extern char* program_invocation_name;