emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
67d5b8b5b1
busybox/modutils/modprobe.c

901 lines
23 KiB
C
Raw Blame History

/* vi: set sw=4 ts=4: */
/*
* Modprobe written from scratch for BusyBox
*
* Copyright (c) 2002 by Robert Griebl, griebl@gmx.de
* Copyright (c) 2003 by Andrew Dennison, andrew.dennison@motec.com.au
* Copyright (c) 2005 by Jim Bauer, jfbauer@nfr.com
*
* Portions Copyright (c) 2005 by Yann E. MORIN, yann.morin.1998@anciens.enib.fr
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include <sys/utsname.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <getopt.h>
#include <stdlib.h>
#include <unistd.h>
#include <syslog.h>
#include <string.h>
#include <ctype.h>
#include <fcntl.h>
#include "busybox.h"
struct mod_opt_t { /* one-way list of options to pass to a module */
char * m_opt_val;
struct mod_opt_t * m_next;
};
struct dep_t { /* one-way list of dependency rules */
/* a dependency rule */
char * m_name; /* the module name*/
char * m_path; /* the module file path */
struct mod_opt_t * m_options; /* the module options */
int m_isalias : 1; /* the module is an alias */
int m_reserved : 15; /* stuffin' */
int m_depcnt : 16; /* the number of dependable module(s) */
char ** m_deparr; /* the list of dependable module(s) */
struct dep_t * m_next; /* the next dependency rule */
};
struct mod_list_t { /* two-way list of modules to process */
/* a module description */
char * m_name;
char * m_path;
struct mod_opt_t * m_options;
struct mod_list_t * m_prev;
struct mod_list_t * m_next;
};
static struct dep_t *depend;
#define main_options "acdklnqrst:vVC:"
#define INSERT_ALL 1 /* a */
#define DUMP_CONF_EXIT 2 /* c */
#define D_OPT_IGNORED 4 /* d */
#define AUTOCLEAN_FLG 8 /* k */
#define LIST_ALL 16 /* l */
#define SHOW_ONLY 32 /* n */
#define QUIET 64 /* q */
#define REMOVE_OPT 128 /* r */
#define DO_SYSLOG 256 /* s */
#define RESTRICT_DIR 512 /* t */
#define VERBOSE 1024 /* v */
#define VERSION_ONLY 2048 /* V */
#define CONFIG_FILE 4096 /* C */
#define autoclean (main_opts & AUTOCLEAN_FLG)
#define show_only (main_opts & SHOW_ONLY)
#define quiet (main_opts & QUIET)
#define remove_opt (main_opts & REMOVE_OPT)
#define do_syslog (main_opts & DO_SYSLOG)
#define verbose (main_opts & VERBOSE)
static int main_opts;
static int parse_tag_value ( char *buffer, char **ptag, char **pvalue )
{
char *tag, *value;
while ( isspace ( *buffer ))
buffer++;
tag = value = buffer;
while ( !isspace ( *value ))
if (!*value) return 0;
else value++;
*value++ = 0;
while ( isspace ( *value ))
value++;
if (!*value) return 0;
*ptag = tag;
*pvalue = value;
return 1;
}
/* Jump through hoops to simulate how fgets() grabs just one line at a
* time... Don't use any stdio since modprobe gets called from a kernel
* thread and stdio junk can overflow the limited stack...
*/
static char *reads ( int fd, char *buffer, size_t len )
{
int n = read ( fd, buffer, len );
if ( n > 0 ) {
char *p;
buffer [len-1] = 0;
p = strchr ( buffer, '\n' );
if ( p ) {
off_t offset;
offset = lseek ( fd, 0L, SEEK_CUR ); // Get the current file descriptor offset
lseek ( fd, offset-n + (p-buffer) + 1, SEEK_SET ); // Set the file descriptor offset to right after the \n
p[1] = 0;
}
return buffer;
}
else
return 0;
}
/*
* This function appends an option to a list
*/
static struct mod_opt_t *append_option( struct mod_opt_t *opt_list, char *opt )
{
struct mod_opt_t *ol = opt_list;
if( ol ) {
while( ol-> m_next ) {
ol = ol-> m_next;
}
ol-> m_next = xmalloc( sizeof( struct mod_opt_t ) );
ol = ol-> m_next;
} else {
ol = opt_list = xmalloc( sizeof( struct mod_opt_t ) );
}
ol-> m_opt_val = bb_xstrdup( opt );
ol-> m_next = NULL;
return opt_list;
}
#if ENABLE_FEATURE_MODPROBE_MULTIPLE_OPTIONS
/* static char* parse_command_string( char* src, char **dst );
* src: pointer to string containing argument
* dst: pointer to where to store the parsed argument
* return value: the pointer to the first char after the parsed argument,
* NULL if there was no argument parsed (only trailing spaces).
* Note that memory is allocated with bb_xstrdup when a new argument was
* parsed. Don't forget to free it!
*/
#define ARG_EMPTY 0x00
#define ARG_IN_DQUOTES 0x01
#define ARG_IN_SQUOTES 0x02
static char *parse_command_string( char *src, char **dst )
{
int opt_status = ARG_EMPTY;
char* tmp_str;
/* Dumb you, I have nothing to do... */
if( src == NULL ) return src;
/* Skip leading spaces */
while( *src == ' ' ) {
src++;
}
/* Is the end of string reached? */
if( *src == '\0' ) {
return NULL;
}
/* Reached the start of an argument
* By the way, we duplicate a little too much
* here but what is too much is freed later. */
*dst = tmp_str = bb_xstrdup( src );
/* Get to the end of that argument */
while( ( *tmp_str != '\0' )
&& ( ( *tmp_str != ' ' )
|| ( opt_status & ( ARG_IN_DQUOTES | ARG_IN_SQUOTES ) ) ) ) {
switch( *tmp_str ) {
case '\'':
if( opt_status & ARG_IN_DQUOTES ) {
/* Already in double quotes, keep current char as is */
} else {
/* shift left 1 char, until end of string: get rid of the opening/closing quotes */
memmove( tmp_str, tmp_str + 1, strlen( tmp_str ) );
/* mark me: we enter or leave single quotes */
opt_status ^= ARG_IN_SQUOTES;
/* Back one char, as we need to re-scan the new char there. */
tmp_str--;
}
break;
case '"':
if( opt_status & ARG_IN_SQUOTES ) {
/* Already in single quotes, keep current char as is */
} else {
/* shift left 1 char, until end of string: get rid of the opening/closing quotes */
memmove( tmp_str, tmp_str + 1, strlen( tmp_str ) );
/* mark me: we enter or leave double quotes */
opt_status ^= ARG_IN_DQUOTES;
/* Back one char, as we need to re-scan the new char there. */
tmp_str--;
}
break;
case '\\':
if( opt_status & ARG_IN_SQUOTES ) {
/* Between single quotes: keep as is. */
} else {
switch( *(tmp_str+1) ) {
case 'a':
case 'b':
case 't':
case 'n':
case 'v':
case 'f':
case 'r':
case '0':
/* We escaped a special character. For now, keep
* both the back-slash and the following char. */
tmp_str++; src++;
break;
default:
/* We escaped a space or a single or double quote,
* or a back-slash, or a non-escapable char. Remove
* the '\' and keep the new current char as is. */
memmove( tmp_str, tmp_str + 1, strlen( tmp_str ) );
break;
}
}
break;
/* Any other char that is special shall appear here.
* Example: $ starts a variable
case '$':
do_variable_expansion();
break;
* */
default:
/* any other char is kept as is. */
break;
}
tmp_str++; /* Go to next char */
src++; /* Go to next char to find the end of the argument. */
}
/* End of string, but still no ending quote */
if( opt_status & ( ARG_IN_DQUOTES | ARG_IN_SQUOTES ) ) {
bb_error_msg_and_die( "unterminated (single or double) quote in options list: %s", src );
}
*tmp_str++ = '\0';
*dst = xrealloc( *dst, (tmp_str - *dst ) );
return src;
}
#else
#define parse_command_string(src, dst) (0)
#endif /* ENABLE_FEATURE_MODPROBE_MULTIPLE_OPTIONS */
/*
* This function reads aliases and default module options from a configuration file
* (/etc/modprobe.conf syntax). It supports includes (only files, no directories).
*/
static void include_conf ( struct dep_t **first, struct dep_t **current, char *buffer, int buflen, int fd )
{
int continuation_line = 0;
// alias parsing is not 100% correct (no correct handling of continuation lines within an alias) !
while ( reads ( fd, buffer, buflen)) {
int l;
char *p;
p = strchr ( buffer, '#' );
if ( p )
*p = 0;
l = bb_strlen ( buffer );
while ( l && isspace ( buffer [l-1] )) {
buffer [l-1] = 0;
l--;
}
if ( l == 0 ) {
continuation_line = 0;
continue;
}
if ( !continuation_line ) {
if (( strncmp ( buffer, "alias", 5 ) == 0 ) && isspace ( buffer [5] )) {
char *alias, *mod;
if ( parse_tag_value ( buffer + 6, &alias, &mod )) {
/* handle alias as a module dependent on the aliased module */
if ( !*current ) {
(*first) = (*current) = (struct dep_t *) xcalloc ( 1, sizeof ( struct dep_t ));
}
else {
(*current)-> m_next = (struct dep_t *) xcalloc ( 1, sizeof ( struct dep_t ));
(*current) = (*current)-> m_next;
}
(*current)-> m_name = bb_xstrdup ( alias );
(*current)-> m_isalias = 1;
if (( strcmp ( mod, "off" ) == 0 ) || ( strcmp ( mod, "null" ) == 0 )) {
(*current)-> m_depcnt = 0;
(*current)-> m_deparr = 0;
}
else {
(*current)-> m_depcnt = 1;
(*current)-> m_deparr = xmalloc ( 1 * sizeof( char * ));
(*current)-> m_deparr[0] = bb_xstrdup ( mod );
}
(*current)-> m_next = 0;
}
}
else if (( strncmp ( buffer, "options", 7 ) == 0 ) && isspace ( buffer [7] )) {
char *mod, *opt;
/* split the line in the module/alias name, and options */
if ( parse_tag_value ( buffer + 8, &mod, &opt )) {
struct dep_t *dt;
/* find the corresponding module */
for ( dt = *first; dt; dt = dt-> m_next ) {
if ( strcmp ( dt-> m_name, mod ) == 0 )
break;
}
if ( dt ) {
if ( ENABLE_FEATURE_MODPROBE_MULTIPLE_OPTIONS ) {
char* new_opt = NULL;
while( ( opt = parse_command_string( opt, &new_opt ) ) ) {
dt-> m_options = append_option( dt-> m_options, new_opt );
}
} else {
dt-> m_options = append_option( dt-> m_options, opt );
}
}
}
}
else if (( strncmp ( buffer, "include", 7 ) == 0 ) && isspace ( buffer [7] )) {
int fdi; char *filename = buffer + 8;
while ( isspace ( *filename ))
filename++;
if (( fdi = open ( filename, O_RDONLY )) >= 0 ) {
include_conf(first, current, buffer, buflen, fdi);
close(fdi);
}
}
}
}
}
/*
* This function builds a list of dependency rules from /lib/modules/`uname -r\modules.dep.
* It then fills every modules and aliases with their default options, found by parsing
* modprobe.conf (or modules.conf, or conf.modules).
*/
static struct dep_t *build_dep ( void )
{
int fd;
struct utsname un;
struct dep_t *first = 0;
struct dep_t *current = 0;
char buffer[2048];
char *filename;
int continuation_line = 0;
int k_version;
k_version = 0;
if ( uname ( &un ))
bb_error_msg_and_die("can't determine kernel version");
if (un.release[0] == '2') {
k_version = un.release[2] - '0';
}
filename = bb_xasprintf("/lib/modules/%s/modules.dep", un.release );
if (( fd = open ( filename, O_RDONLY )) < 0 ) {
/* Ok, that didn't work. Fall back to looking in /lib/modules */
if (( fd = open ( "/lib/modules/modules.dep", O_RDONLY )) < 0 ) {
return 0;
}
}
free(filename);
while ( reads ( fd, buffer, sizeof( buffer ))) {
int l = bb_strlen ( buffer );
char *p = 0;
while ( l > 0 && isspace ( buffer [l-1] )) {
buffer [l-1] = 0;
l--;
}
if ( l == 0 ) {
continuation_line = 0;
continue;
}
/* Is this a new module dep description? */
if ( !continuation_line ) {
/* find the dep beginning */
char *col = strchr ( buffer, ':' );
char *dot = col;
if ( col ) {
/* This line is a dep description */
char *mods;
char *modpath;
char *mod;
/* Find the beginning of the module file name */
*col = 0;
mods = strrchr ( buffer, '/' );
if ( !mods )
mods = buffer; /* no path for this module */
else
mods++; /* there was a path for this module... */
/* find the path of the module */
modpath = strchr ( buffer, '/' ); /* ... and this is the path */
if ( !modpath )
modpath = buffer; /* module with no path */
/* find the end of the module name in the file name */
if ( ENABLE_FEATURE_2_6_MODULES &&
(k_version > 4) && ( *(col-3) == '.' ) &&
( *(col-2) == 'k' ) && ( *(col-1) == 'o' ) )
dot = col - 3;
else
if (( *(col-2) == '.' ) && ( *(col-1) == 'o' ))
dot = col - 2;
mod = bb_xstrndup ( mods, dot - mods );
/* enqueue new module */
if ( !current ) {
first = current = (struct dep_t *) xmalloc ( sizeof ( struct dep_t ));
}
else {
current-> m_next = (struct dep_t *) xmalloc ( sizeof ( struct dep_t ));
current = current-> m_next;
}
current-> m_name = mod;
current-> m_path = bb_xstrdup(modpath);
current-> m_options = NULL;
current-> m_isalias = 0;
current-> m_depcnt = 0;
current-> m_deparr = 0;
current-> m_next = 0;
p = col + 1;
}
else
/* this line is not a dep description */
p = 0;
}
else
/* It's a dep description continuation */
p = buffer;
while ( p && *p && isblank(*p))
p++;
/* p points to the first dependable module; if NULL, no dependable module */
if ( p && *p ) {
char *end = &buffer [l-1];
char *deps;
char *dep;
char *next;
int ext = 0;
while ( isblank ( *end ) || ( *end == '\\' ))
end--;
do
{
/* search the end of the dependency */
next = strchr (p, ' ' );
if (next)
{
*next = 0;
next--;
}
else
next = end;
/* find the beginning of the module file name */
deps = strrchr ( p, '/' );
if ( !deps || ( deps < p )) {
deps = p;
while ( isblank ( *deps ))
deps++;
}
else
deps++;
/* find the end of the module name in the file name */
if ( ENABLE_FEATURE_2_6_MODULES &&
(k_version > 4) && ( *(next-2) == '.' ) &&
( *(next-1) == 'k' ) && ( *next == 'o' ) )
ext = 3;
else
if (( *(next-1) == '.' ) && ( *next == 'o' ))
ext = 2;
/* Cope with blank lines */
if ((next-deps-ext+1) <= 0)
continue;
dep = bb_xstrndup ( deps, next - deps - ext + 1 );
/* Add the new dependable module name */
current-> m_depcnt++;
current-> m_deparr = (char **) xrealloc ( current-> m_deparr,
sizeof ( char *) * current-> m_depcnt );
current-> m_deparr [current-> m_depcnt - 1] = dep;
p = next + 2;
} while (next < end);
}
/* is there other dependable module(s) ? */
if ( buffer [l-1] == '\\' )
continuation_line = 1;
else
continuation_line = 0;
}
close ( fd );
if (!ENABLE_FEATURE_2_6_MODULES
|| ( fd = open ( "/etc/modprobe.conf", O_RDONLY )) < 0 )
if (( fd = open ( "/etc/modules.conf", O_RDONLY )) < 0 )
if (( fd = open ( "/etc/conf.modules", O_RDONLY )) < 0 )
return first;
include_conf (&first, &current, buffer, sizeof(buffer), fd);
close(fd);
filename = bb_xasprintf("/lib/modules/%s/modules.alias", un.release );
if (( fd = open ( filename, O_RDONLY )) < 0 ) {
/* Ok, that didn't work. Fall back to looking in /lib/modules */
if (( fd = open ( "/lib/modules/modules.alias", O_RDONLY )) < 0 ) {
return first;
}
}
free(filename);
include_conf (&first, &current, buffer, sizeof(buffer), fd);
close(fd);
return first;
}
/* return 1 = loaded, 0 = not loaded, -1 = can't tell */
static int already_loaded (const char *name)
{
int fd;
char buffer[4096];
fd = open ("/proc/modules", O_RDONLY);
if (fd < 0)
return -1;
while ( reads ( fd, buffer, sizeof( buffer ))) {
char *p;
p = strchr (buffer, ' ');
if (p) {
*p = 0;
for( p = buffer; ENABLE_FEATURE_2_6_MODULES && *p; p++ ) {
*p = ((*p)=='-')?'_':*p;
}
if (strcmp (name, buffer) == 0) {
close (fd);
return 1;
}
}
}
close (fd);
return 0;
}
static int mod_process ( struct mod_list_t *list, int do_insert )
{
int rc = 0;
char **argv = NULL;
struct mod_opt_t *opts;
int argc_malloc; /* never used when CONFIG_FEATURE_CLEAN_UP not defined */
int argc;
while ( list ) {
argc = 0;
if( ENABLE_FEATURE_CLEAN_UP )
argc_malloc = 0;
/* If CONFIG_FEATURE_CLEAN_UP is not defined, then we leak memory
* each time we allocate memory for argv.
* But it is (quite) small amounts of memory that leak each
* time a module is loaded, and it is reclaimed when modprobe
* exits anyway (even when standalone shell?).
* This could become a problem when loading a module with LOTS of
* dependencies, with LOTS of options for each dependencies, with
* very little memory on the target... But in that case, the module
* would not load because there is no more memory, so there's no
* problem. */
/* enough for minimal insmod (5 args + NULL) or rmmod (3 args + NULL) */
argv = (char**) malloc( 6 * sizeof( char* ) );
if ( do_insert ) {
if (already_loaded (list->m_name) != 1) {
argv[argc++] = "insmod";
if (do_syslog)
argv[argc++] = "-s";
if (autoclean)
argv[argc++] = "-k";
if (quiet)
argv[argc++] = "-q";
else if(verbose) /* verbose and quiet are mutually exclusive */
argv[argc++] = "-v";
argv[argc++] = list-> m_path;
if( ENABLE_FEATURE_CLEAN_UP )
argc_malloc = argc;
opts = list-> m_options;
while( opts ) {
/* Add one more option */
argc++;
argv = (char**) xrealloc( argv, ( argc + 1 ) * sizeof( char* ) );
argv[argc-1] = opts-> m_opt_val;
opts = opts-> m_next;
}
}
} else {
/* modutils uses short name for removal */
if (already_loaded (list->m_name) != 0) {
argv[argc++] = "rmmod";
if (do_syslog)
argv[argc++] = "-s";
argv[argc++] = list->m_name;
if( ENABLE_FEATURE_CLEAN_UP )
argc_malloc = argc;
}
}
argv[argc] = NULL;
if (argc) {
if (verbose) {
printf("%s module %s\n", do_insert?"Loading":"Unloading", list-> m_name );
}
if (!show_only) {
int rc2 = 0;
int status;
switch (fork()) {
case -1:
rc2 = 1;
break;
case 0: //child
execvp(argv[0], argv);
bb_perror_msg_and_die("exec of %s", argv[0]);
/* NOTREACHED */
default:
if (wait(&status) == -1) {
rc2 = 1;
break;
}
if (WIFEXITED(status))
rc2 = WEXITSTATUS(status);
if (WIFSIGNALED(status))
rc2 = WTERMSIG(status);
break;
}
if (do_insert) {
rc = rc2; /* only last module matters */
}
else if (!rc2) {
rc = 0; /* success if remove any mod */
}
}
if( ENABLE_FEATURE_CLEAN_UP )
/* the last value in the array has index == argc, but
* it is the terminating NULL, so we must not free it. */
while( argc_malloc < argc ) {
free( argv[argc_malloc++] );
}
}
if( ENABLE_FEATURE_CLEAN_UP ) {
free( argv );
argv = NULL;
}
list = do_insert ? list-> m_prev : list-> m_next;
}
return (show_only) ? 0 : rc;
}
/*
* Builds the dependency list (aka stack) of a module.
* head: the highest module in the stack (last to insmod, first to rmmod)
* tail: the lowest module in the stack (first to insmod, last to rmmod)
*/
static void check_dep ( char *mod, struct mod_list_t **head, struct mod_list_t **tail )
{
struct mod_list_t *find;
struct dep_t *dt;
struct mod_opt_t *opt = 0;
char *path = 0;
// check dependencies
for ( dt = depend; dt; dt = dt-> m_next ) {
if ( strcmp ( dt-> m_name, mod ) == 0) {
break;
}
}
if( !dt ) {
bb_error_msg ("module %s not found.", mod);
return;
}
// resolve alias names
while ( dt-> m_isalias ) {
if ( dt-> m_depcnt == 1 ) {
struct dep_t *adt;
for ( adt = depend; adt; adt = adt-> m_next ) {
if ( strcmp ( adt-> m_name, dt-> m_deparr [0] ) == 0 )
break;
}
if ( adt ) {
/* This is the module we are aliased to */
struct mod_opt_t *opts = dt-> m_options;
/* Option of the alias are appended to the options of the module */
while( opts ) {
adt-> m_options = append_option( adt-> m_options, opts-> m_opt_val );
opts = opts-> m_next;
}
dt = adt;
}
else {
bb_error_msg ("module %s not found.", mod);
return;
}
}
else {
bb_error_msg ("Bad alias %s", dt-> m_name);
return;
}
}
mod = dt-> m_name;
path = dt-> m_path;
opt = dt-> m_options;
// search for duplicates
for ( find = *head; find; find = find-> m_next ) {
if ( !strcmp ( mod, find-> m_name )) {
// found -> dequeue it
if ( find-> m_prev )
find-> m_prev-> m_next = find-> m_next;
else
*head = find-> m_next;
if ( find-> m_next )
find-> m_next-> m_prev = find-> m_prev;
else
*tail = find-> m_prev;
break; // there can be only one duplicate
}
}
if ( !find ) { // did not find a duplicate
find = (struct mod_list_t *) xmalloc ( sizeof(struct mod_list_t));
find-> m_name = mod;
find-> m_path = path;
find-> m_options = opt;
}
// enqueue at tail
if ( *tail )
(*tail)-> m_next = find;
find-> m_prev = *tail;
find-> m_next = 0;
if ( !*head )
*head = find;
*tail = find;
if ( dt ) {
int i;
/* Add all dependable module for that new module */
for ( i = 0; i < dt-> m_depcnt; i++ )
check_dep ( dt-> m_deparr [i], head, tail );
}
}
static int mod_insert ( char *mod, int argc, char **argv )
{
struct mod_list_t *tail = 0;
struct mod_list_t *head = 0;
int rc;
// get dep list for module mod
check_dep ( mod, &head, &tail );
if ( head && tail ) {
if( argc ) {
int i;
// append module args
for ( i = 0; i < argc; i++ )
head->m_options = append_option( head->m_options, argv[i] );
}
// process tail ---> head
rc = mod_process ( tail, 1 );
}
else
rc = 1;
return rc;
}
static int mod_remove ( char *mod )
{
int rc;
static struct mod_list_t rm_a_dummy = { "-a", NULL, NULL, NULL, NULL };
struct mod_list_t *head = 0;
struct mod_list_t *tail = 0;
if ( mod )
check_dep ( mod, &head, &tail );
else // autoclean
head = tail = &rm_a_dummy;
if ( head && tail )
rc = mod_process ( head, 0 ); // process head ---> tail
else
rc = 1;
return rc;
}
int modprobe_main(int argc, char** argv)
{
int rc = EXIT_SUCCESS;
char *unused;
bb_opt_complementally = "?V-:q-v:v-q";
main_opts = bb_getopt_ulflags(argc, argv, "acdklnqrst:vVC:",
&unused, &unused);
if((main_opts & (DUMP_CONF_EXIT | LIST_ALL)))
return EXIT_SUCCESS;
if((main_opts & (RESTRICT_DIR | CONFIG_FILE)))
bb_error_msg_and_die("-t and -C not supported");
depend = build_dep ( );
if ( !depend )
bb_error_msg_and_die ( "could not parse modules.dep\n" );
if (remove_opt) {
do {
if (mod_remove ( optind < argc ?
argv [optind] : NULL )) {
bb_error_msg ("failed to remove module %s",
argv [optind] );
rc = EXIT_FAILURE;
}
} while ( ++optind < argc );
} else {
if (optind >= argc)
bb_error_msg_and_die ( "No module or pattern provided\n" );
if ( mod_insert ( argv [optind], argc - optind - 1, argv + optind + 1 ))
bb_error_msg_and_die ( "failed to load module %s", argv [optind] );
}
/* Here would be a good place to free up memory allocated during the dependencies build. */
return rc;
}
Reference in New Issue View Git Blame Copy Permalink