diff options
Diffstat (limited to 'release/src/router/busybox/modutils/rmmod.c')
-rw-r--r-- | release/src/router/busybox/modutils/rmmod.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/release/src/router/busybox/modutils/rmmod.c b/release/src/router/busybox/modutils/rmmod.c new file mode 100644 index 00000000..a4ea7041 --- /dev/null +++ b/release/src/router/busybox/modutils/rmmod.c @@ -0,0 +1,77 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini rmmod implementation for busybox + * + * Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org> + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include <stdio.h> +#include <errno.h> +#include <unistd.h> +#include <stdlib.h> +#include <getopt.h> +#include "busybox.h" + +extern int delete_module(const char * name); + + +extern int rmmod_main(int argc, char **argv) +{ + int n, ret = EXIT_SUCCESS; + size_t nmod = 0; /* number of modules */ + size_t pnmod = -1; /* previous number of modules */ + void *buf; /* hold the module names which we ignore but must get */ + size_t bufsize = 0; + + /* Parse command line. */ + while ((n = getopt(argc, argv, "a")) != EOF) { + switch (n) { + case 'a': + /* Unload _all_ unused modules via NULL delete_module() call */ + /* until the number of modules does not change */ + buf = xmalloc(bufsize = 256); + while (nmod != pnmod) { + if (delete_module(NULL)) + bb_perror_msg_and_die("rmmod"); + pnmod = nmod; + /* 1 == QM_MODULES */ + if (my_query_module(NULL, 1, &buf, &bufsize, &nmod)) { + bb_perror_msg_and_die("QM_MODULES"); + } + } +#ifdef CONFIG_FEATURE_CLEAN_UP + free(buf); +#endif + return EXIT_SUCCESS; + default: + bb_show_usage(); + } + } + + if (optind == argc) + bb_show_usage(); + + for (n = optind; n < argc; n++) { + if (delete_module(argv[n]) < 0) { + bb_perror_msg("%s", argv[n]); + ret = EXIT_FAILURE; + } + } + + return(ret); +} |