diff options
author | Andreas Baumann <mail@andreasbaumann.cc> | 2015-01-03 12:04:58 +0100 |
---|---|---|
committer | Andreas Baumann <mail@andreasbaumann.cc> | 2015-01-03 12:04:58 +0100 |
commit | 008d0be72b2f160382c6e880765e96b64a050c65 (patch) | |
tree | 36f48a98a3815a408e2ce1693dd182af90f80305 /release/src/router/busybox/lsmod.c | |
parent | 611becfb8726c60cb060368541ad98191d4532f5 (diff) | |
download | tomato-008d0be72b2f160382c6e880765e96b64a050c65.tar.gz tomato-008d0be72b2f160382c6e880765e96b64a050c65.tar.bz2 |
imported original firmware WRT54GL_v4.30.11_11_US
Diffstat (limited to 'release/src/router/busybox/lsmod.c')
-rw-r--r-- | release/src/router/busybox/lsmod.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/release/src/router/busybox/lsmod.c b/release/src/router/busybox/lsmod.c new file mode 100644 index 00000000..76ed2fdd --- /dev/null +++ b/release/src/router/busybox/lsmod.c @@ -0,0 +1,166 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini lsmod implementation for busybox + * + * Copyright (C) 1999,2000,2001 by Lineo, inc. + * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> + * + * Modified by Alcove, Julien Gaulmin <julien.gaulmin@alcove.fr> and + * Nicolas Ferre <nicolas.ferre@alcove.fr> to support pre 2.1 kernels + * (which lack the query_module() interface). + * + * 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 <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <stddef.h> +#include <errno.h> +#include <unistd.h> +#include <dirent.h> +#include <ctype.h> +#include <assert.h> +#include <getopt.h> +#include <sys/utsname.h> +#include <sys/file.h> +#include "busybox.h" + + + +#ifdef BB_FEATURE_NEW_MODULE_INTERFACE + +struct module_info +{ + unsigned long addr; + unsigned long size; + unsigned long flags; + long usecount; +}; + + +int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret); + +/* Values for query_module's which. */ +static const int QM_MODULES = 1; +static const int QM_DEPS = 2; +static const int QM_REFS = 3; +static const int QM_SYMBOLS = 4; +static const int QM_INFO = 5; + +/* Bits of module.flags. */ +static const int NEW_MOD_RUNNING = 1; +static const int NEW_MOD_DELETED = 2; +static const int NEW_MOD_AUTOCLEAN = 4; +static const int NEW_MOD_VISITED = 8; +static const int NEW_MOD_USED_ONCE = 16; +static const int NEW_MOD_INITIALIZING = 64; + +static int my_query_module(const char *name, int which, void **buf, + size_t *bufsize, size_t *ret) +{ + int my_ret; + + my_ret = query_module(name, which, *buf, *bufsize, ret); + + if (my_ret == -1 && errno == ENOSPC) { + *buf = xrealloc(*buf, *ret); + *bufsize = *ret; + + my_ret = query_module(name, which, *buf, *bufsize, ret); + } + + return my_ret; +} + +extern int lsmod_main(int argc, char **argv) +{ + struct module_info info; + char *module_names, *mn, *deps, *dn; + size_t bufsize, depsize, nmod, count, i, j; + + module_names = xmalloc(bufsize = 256); + if (my_query_module(NULL, QM_MODULES, (void **)&module_names, &bufsize, + &nmod)) { + perror_msg_and_die("QM_MODULES"); + } + + deps = xmalloc(depsize = 256); + printf("Module Size Used by\n"); + for (i = 0, mn = module_names; i < nmod; mn += strlen(mn) + 1, i++) { + if (query_module(mn, QM_INFO, &info, sizeof(info), &count)) { + if (errno == ENOENT) { + /* The module was removed out from underneath us. */ + continue; + } + /* else choke */ + perror_msg_and_die("module %s: QM_INFO", mn); + } + if (my_query_module(mn, QM_REFS, (void **)&deps, &depsize, &count)) { + if (errno == ENOENT) { + /* The module was removed out from underneath us. */ + continue; + } + perror_msg_and_die("module %s: QM_REFS", mn); + } + printf("%-20s%8lu%4ld ", mn, info.size, info.usecount); + if (info.flags & NEW_MOD_DELETED) + printf("(deleted)"); + else if (info.flags & NEW_MOD_INITIALIZING) + printf("(initializing)"); + else if (!(info.flags & NEW_MOD_RUNNING)) + printf("(uninitialized)"); + else { + if (info.flags & NEW_MOD_AUTOCLEAN) + printf("(autoclean) "); + if (!(info.flags & NEW_MOD_USED_ONCE)) + printf("(unused)"); + } + if (count) printf("["); + for (j = 0, dn = deps; j < count; dn += strlen(dn) + 1, j++) { + printf("%s%s", dn, (j==count-1)? "":" "); + } + if (count) printf("] "); + + printf("\n"); + } + + + return( 0); +} + +#else /*BB_FEATURE_OLD_MODULE_INTERFACE*/ + +extern int lsmod_main(int argc, char **argv) +{ + int fd, i; + char line[128]; + + puts("Module Size Used by"); + fflush(stdout); + + if ((fd = open("/proc/modules", O_RDONLY)) >= 0 ) { + while ((i = read(fd, line, sizeof(line))) > 0) { + write(fileno(stdout), line, i); + } + close(fd); + return 0; + } + perror_msg_and_die("/proc/modules"); + return 1; +} + +#endif /*BB_FEATURE_OLD_MODULE_INTERFACE*/ |