cpu_name_mac.c

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/sysctl.h>

char *
cpu_name() {
    size_t buffer_size = 100;
    char * buffer = malloc(sizeof(char) * buffer_size);
    sysctlbyname("machdep.cpu.brand_string", buffer, &buffer_size, NULL, 0);
    return buffer;
}

int main() {
    printf("%s\n", cpu_name());
}