diff options
Diffstat (limited to 'prog/mutation.go')
| -rw-r--r-- | prog/mutation.go | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/prog/mutation.go b/prog/mutation.go index c9f647ae8..571b54a3f 100644 --- a/prog/mutation.go +++ b/prog/mutation.go @@ -344,14 +344,14 @@ func (t *BufferType) mutate(r *randGen, s *state, arg Arg, ctx ArgCtx) (calls [] data := append([]byte{}, a.Data()...) a.data = mutateData(r, data, minLen, maxLen) case BufferString: - data := append([]byte{}, a.Data()...) - if r.bin() { + if len(t.Values) != 0 { + a.data = r.randString(s, t) + } else { if t.TypeSize != 0 { minLen, maxLen = t.TypeSize, t.TypeSize } + data := append([]byte{}, a.Data()...) a.data = mutateData(r, data, minLen, maxLen) - } else { - a.data = r.randString(s, t) } case BufferFilename: a.data = []byte(r.filename(s, t)) @@ -630,6 +630,10 @@ func (t *BufferType) getMutationPrio(target *Target, arg Arg, ignoreSpecial bool if t.Dir() == DirOut && !t.Varlen() { return dontMutate, false } + if t.Kind == BufferString && len(t.Values) == 1 { + // These are effectively consts (and frequently file names). + return dontMutate, false + } return 0.8 * maxPriority, false } |