diff options
Diffstat (limited to 'modutils')
| -rw-r--r-- | modutils/modprobe.c | 93 |
1 files changed, 39 insertions, 54 deletions
diff --git a/modutils/modprobe.c b/modutils/modprobe.c index 844eb99..d04c7ff 100644 --- a/modutils/modprobe.c +++ b/modutils/modprobe.c @@ -55,7 +55,30 @@ struct mod_list_t { /* two-way list of modules to process */ static struct dep_t *depend; -static int autoclean, show_only, quiet, do_syslog, verbose; + +#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 ) { @@ -234,8 +257,8 @@ static char *parse_command_string( char *src, char **dst ) 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, strlen( *dst ) ); + *tmp_str++ = '\0'; + *dst = xrealloc( *dst, (tmp_str - *dst ) ); return src; } #else @@ -254,7 +277,7 @@ static struct dep_t *build_dep ( void ) struct dep_t *first = 0; struct dep_t *current = 0; char buffer[2048]; - char *filename = buffer; + char *filename; int continuation_line = 0; int k_version; @@ -262,17 +285,11 @@ static struct dep_t *build_dep ( void ) if ( uname ( &un )) bb_error_msg_and_die("can't determine kernel version"); - // check for buffer overflow in following code - if ( bb_strlen ( un.release ) > ( sizeof( buffer ) - 64 )) { - return 0; - } if (un.release[0] == '2') { k_version = un.release[2] - '0'; } - strcpy ( filename, "/lib/modules/" ); - strcat ( filename, un.release ); - strcat ( filename, "/modules.dep" ); + filename = bb_xasprintf("/lib/modules/%s/modules.dep", un.release ); if (( fd = open ( filename, O_RDONLY )) < 0 ) { @@ -281,12 +298,13 @@ static struct dep_t *build_dep ( void ) return 0; } } + free(filename); while ( reads ( fd, buffer, sizeof( buffer ))) { int l = bb_strlen ( buffer ); char *p = 0; - while ( isspace ( buffer [l-1] )) { + while ( l > 0 && isspace ( buffer [l-1] )) { buffer [l-1] = 0; l--; } @@ -787,7 +805,7 @@ static int mod_insert ( char *mod, int argc, char **argv ) static int mod_remove ( char *mod ) { int rc; - static struct mod_list_t rm_a_dummy = { "-a", 0, 0 }; + 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; @@ -807,50 +825,17 @@ static int mod_remove ( char *mod ) extern int modprobe_main(int argc, char** argv) { - int opt; int rc = EXIT_SUCCESS; - int remove_opt = 0; + char *unused; - autoclean = show_only = quiet = do_syslog = verbose = 0; - - while ((opt = getopt(argc, argv, "acdklnqrst:vVC:")) != -1) { - switch(opt) { - case 'c': // no config used - case 'l': // no pattern matching + 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; - break; - case 'C': // no config used - case 't': // no pattern matching + if((main_opts & (RESTRICT_DIR | CONFIG_FILE))) bb_error_msg_and_die("-t and -C not supported"); - case 'a': // ignore - case 'd': // ignore - break; - case 'k': - autoclean++; - break; - case 'n': - show_only++; - break; - case 'q': - quiet++; verbose=0; - break; - case 'r': - remove_opt++; - break; - case 's': - do_syslog++; - break; - case 'v': - verbose++; quiet=0; - break; - case 'V': - default: - bb_show_usage(); - break; - } - } - depend = build_dep ( ); if ( !depend ) @@ -859,7 +844,7 @@ extern int modprobe_main(int argc, char** argv) if (remove_opt) { do { if (mod_remove ( optind < argc ? - bb_xstrdup (argv [optind]) : NULL )) { + argv [optind] : NULL )) { bb_error_msg ("failed to remove module %s", argv [optind] ); rc = EXIT_FAILURE; @@ -869,7 +854,7 @@ extern int modprobe_main(int argc, char** argv) if (optind >= argc) bb_error_msg_and_die ( "No module or pattern provided\n" ); - if ( mod_insert ( bb_xstrdup ( argv [optind] ), argc - optind - 1, argv + optind + 1 )) + if ( mod_insert ( argv [optind], argc - optind - 1, argv + optind + 1 )) bb_error_msg_and_die ( "failed to load module %s", argv [optind] ); } |