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authorGravatar "Vladimir N. Oleynik" <dzo@simtreas.ru>2006-02-02 14:48:54 +0000
committerGravatar "Vladimir N. Oleynik" <dzo@simtreas.ru>2006-02-02 14:48:54 +0000
commit4fc92206ed4ade658fa1d606c93ee1aee771179b (patch)
tree7f4e7befe49ad4dd9c488649cb04bc8aa10cd2fa /modutils
parentb38673fb9fee63303cc6b7d4923ea0dd7cf7310a (diff)
downloadbusybox-4fc92206ed4ade658fa1d606c93ee1aee771179b.tar.gz
busybox-4fc92206ed4ade658fa1d606c93ee1aee771179b.tar.bz2
destroy bug 679, use getopt_ulflags with new feature: usage option. Removed two strdup
Diffstat (limited to 'modutils')
-rw-r--r--modutils/modprobe.c93
1 files changed, 39 insertions, 54 deletions
diff --git a/modutils/modprobe.c b/modutils/modprobe.c
index 844eb99c5..d04c7ffff 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] );
}