[libc] Fix a validation bug in strtoul()

[people/mcb30/gpxe.git] / src / core / misc.c

diff --git a/src/core/misc.c b/src/core/misc.c
index a54f5a1..1f51272 100644 (file)
--- a/src/core/misc.c
+++ b/src/core/misc.c
@@ -69,7 +69,7 @@ unsigned long strtoul ( const char *p, char **endp, int base ) {
                        charval = ( charval - 'a' + 10 );
                } else if ( charval >= 'A' ) {
                        charval = ( charval - 'A' + 10 );
-               } else {
+               } else if ( charval <= '9' ) {
                        charval = ( charval - '0' );
                }
                if ( charval >= ( unsigned int ) base )