/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney                              â
â                                                                              â
â Permission to use, copy, modify, and/or distribute this software for         â
â any purpose with or without fee is hereby granted, provided that the         â
â above copyright notice and this permission notice appear in all copies.      â
â                                                                              â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             â
â PERFORMANCE OF THIS SOFTWARE.                                                â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/log/libfatal.internal.h"
#include "libc/runtime/internal.h"
#include "libc/str/str.h"

textstartup bool __intercept_flag(int *argc, char *argv[], const char *flag) {
  /* asan isn't initialized yet at runlevel 300 */
  char *a;
  int i, j;
  bool found;
  found = false;
  for (j = i = 1; i <= *argc;) {
    a = argv[j++];
    if (a && !__strcmp(a, flag)) {
      found = true;
      --*argc;
    } else {
      /*
       * e.g. turns ----strace â --strace for execve.
       * todo: update this to allow ------strace etc.
       */
      if (a && a[0] == '-' && a[1] == '-' && !__strcmp(a + 2, flag)) {
        a = flag;
      }
      argv[i++] = a;
    }
  }
  return found;
}
