X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdio%2Fvsscanf.c;h=fd35889ab4d200ead2782f2a1e732c9b76fc97a7;hb=35deadeb6e2db75a54461d5a3e862096aa0b25dd;hp=34397ac36407834ff02f63b16de83190fc4db493;hpb=eb9211f1090ef05e8490a6b35acbe16c9ed9f89a;p=pdclib.old

diff --git a/functions/stdio/vsscanf.c b/functions/stdio/vsscanf.c
index 34397ac..fd35889 100644
--- a/functions/stdio/vsscanf.c
+++ b/functions/stdio/vsscanf.c
@@ -59,6 +59,16 @@ int vsscanf( const char * _PDCLIB_restrict s, const char * _PDCLIB_restrict form
         }
         else
         {
+            /* NULL return code indicates input error */
+            if ( rc == NULL )
+            {
+                if ( status.n == 0 )
+                {
+                    /* input error before any conversion returns EOF */
+                    status.n = EOF;
+                }
+                break;
+            }
             /* Continue parsing after conversion specifier */
             format = rc;
         }