simple/hogs/malloc.c

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

int main(int argc, char **argv) {
    size_t size = strtoul(argv[1], NULL, 0);
    char *p = malloc(size);
    printf("%zu bytes at %p\n", size, p);
    if (argv[2]) {
        unsigned char c = strtoul(argv[2], NULL, 0);
        memset(p, c, size);
        printf("filled with %zu %02x bytes\n", size, c);
    }
    sleep(10);
    return 0;
}