libiwinfo: fix integer overflow in dbm to mw conversion, also allow odd dbm numbers

diff --git a/contrib/package/iwinfo/src/iwinfo.h b/contrib/package/iwinfo/src/iwinfo.h
index a9889bd..aa2f833 100644 (file)
--- a/contrib/package/iwinfo/src/iwinfo.h
+++ b/contrib/package/iwinfo/src/iwinfo.h
@@ -64,8 +64,8 @@ struct iwinfo_assoclist_entry {
 };
 
 struct iwinfo_txpwrlist_entry {
 };
 
 struct iwinfo_txpwrlist_entry {

-       uint8_t dbm;
-       uint8_t mw;
+       uint8_t  dbm;
+       uint16_t mw;

 };
 
 struct iwinfo_freqlist_entry {
 };
 
 struct iwinfo_freqlist_entry {

diff --git a/contrib/package/iwinfo/src/iwinfo_nl80211.c b/contrib/package/iwinfo/src/iwinfo_nl80211.c
index fa714e9..0f57d37 100644 (file)
--- a/contrib/package/iwinfo/src/iwinfo_nl80211.c
+++ b/contrib/package/iwinfo/src/iwinfo_nl80211.c
@@ -1170,7 +1170,7 @@ int nl80211_get_txpwrlist(const char *ifname, char *buf, int *len)
        {
                for( dbm_cur = 0, dbm_cnt = 0;
                     dbm_cur < dbm_max;
        {
                for( dbm_cur = 0, dbm_cnt = 0;
                     dbm_cur < dbm_max;

-                    dbm_cur += 2, dbm_cnt++ )
+                    dbm_cur++, dbm_cnt++ )

                {
                        entry.dbm = dbm_cur;
                        entry.mw  = iwinfo_dbm2mw(dbm_cur);
                {
                        entry.dbm = dbm_cur;
                        entry.mw  = iwinfo_dbm2mw(dbm_cur);