#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>

#include <eynos_cmdmeta.h>
#include <eynos_syscall.h>

EYN_CMDMETA_V1("Unmap a memory-mapped file.", "munmap <address>");

static void usage(void) {
    puts("Usage: munmap <address>");
    puts("Example: munmap 0x12345678");
}

int main(int argc, char** argv) {
    if (argc < 2 || !argv[1] || !argv[1][0]) {
        usage();
        return 1;
    }

    unsigned long value = strtoul(argv[1], NULL, 0);
    void* addr = (void*)(uintptr_t)value;

    if (eyn_sys_munmap(addr) != 0) {
        printf("munmap: failed for 0x%X\n", (unsigned int)value);
        return 1;
    }

    puts("File unmapped successfully");
    return 0;
}