From 3a9241add947cb6d24b5de7a8927517426a78795 Mon Sep 17 00:00:00 2001 From: Rob Landley Date: Sat, 25 Aug 2012 14:25:22 -0500 Subject: Move commands into "posix", "lsb", and "other" menus/directories. --- toys/other/rmmod.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 toys/other/rmmod.c (limited to 'toys/other/rmmod.c') diff --git a/toys/other/rmmod.c b/toys/other/rmmod.c new file mode 100644 index 00000000..d730b45d --- /dev/null +++ b/toys/other/rmmod.c @@ -0,0 +1,51 @@ +/* vi: set sw=4 ts=4: + * + * rmmod.c - Remove a module from the Linux kernel. + * + * Copyright 2012 Elie De Brauwer + * + * Not in SUSv4. + +USE_RMMOD(NEWTOY(rmmod, "<1wf", TOYFLAG_BIN|TOYFLAG_NEEDROOT)) + +config RMMOD + bool "rmmod" + default y + help + usage: rmmod [-wf] [MODULE] + + Unload the module named MODULE from the Linux kernel. + -f Force unload of a module + -w Wait until the module is no longer used. + +*/ + +#include "toys.h" + +#include +#define delete_module(mod, flags) syscall(__NR_delete_module, mod, flags) + +void rmmod_main(void) +{ + unsigned int flags = O_NONBLOCK|O_EXCL; + char * mod_name; + int len; + + // Basename + mod_name = strrchr(toys.optargs[0],'/'); + if (mod_name) + mod_name++; + else + mod_name = toys.optargs[0]; + + // Remove .ko if present + len = strlen(mod_name); + if (len > 3 && !strcmp(&mod_name[len-3], ".ko" )) + mod_name[len-3] = 0; + + if (toys.optflags & 1) flags |= O_TRUNC; + if (toys.optflags & 2) flags &= ~O_NONBLOCK; + + if (delete_module(mod_name, flags)) + perror_exit("failed to unload %s", mod_name); +} -- cgit v1.2.3