+ * 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 = 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