/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
│                                                                              │
│ This program is free software; you can redistribute it and/or modify         │
│ it under the terms of the GNU General Public License as published by         │
│ the Free Software Foundation; version 2 of the License.                      │
│                                                                              │
│ This program is distributed in the hope that it will be useful, but          │
│ WITHOUT ANY WARRANTY; without even the implied warranty of                   │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU             │
│ General Public License for more details.                                     │
│                                                                              │
│ You should have received a copy of the GNU General Public License            │
│ along with this program; if not, write to the Free Software                  │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA                │
│ 02110-1301 USA                                                               │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/conv/conv.h"
#include "libc/runtime/interruptiblecall.h"
#include "libc/stdio/stdio.h"
#include "libc/sysv/consts/sig.h"

struct InterruptibleCall icall;

static intptr_t peek(intptr_t *addr) { return *addr; }

int main(int argc, char *argv[]) {
  int i;
  for (i = 1; i < argc; ++i) {
    intptr_t addr = strtoul(argv[i], NULL, 0);
    icall.sig = SIGSEGV;
    printf("%#p → %#lx\n", addr,
           interruptiblecall(&icall, (void *)peek, addr, 0, 0, 0));
  }
  return 0;
}