no more unlink
MODIFY
docs/ChangeLog
docs/ChangeLog
@@ -17,7 +17,9 @@ sending a mail to <afl-users+subscribe@googlegroups.com>.
Version ++2.54d (dev):
----------------------
- - ... your patch? :)
+ - no more unlinking the input file, this way the input file can also be a
+ FIFO or disk partition
+ - reducing duplicate code in afl-fuzz
--------------------------

MODIFY
src/afl-fuzz-run.c
src/afl-fuzz-run.c
@@ -253,9 +253,9 @@ void write_to_testcase(void* mem, u32 len) {
if (out_file) {
- unlink(out_file); /* Ignore errors. */
+ //unlink(out_file); /* Ignore errors. */
- fd = open(out_file, O_WRONLY | O_CREAT | O_EXCL, 0600);
+ fd = open(out_file, O_WRONLY | O_CREAT | O_TRUNC, 0600);
if (fd < 0) PFATAL("Unable to create '%s'", out_file);
@@ -295,9 +295,9 @@ void write_with_gap(void* mem, u32 len, u32 skip_at, u32 skip_len) {
if (out_file) {
- unlink(out_file); /* Ignore errors. */
+ //unlink(out_file); /* Ignore errors. */
- fd = open(out_file, O_WRONLY | O_CREAT | O_EXCL, 0600);
+ fd = open(out_file, O_WRONLY | O_CREAT | O_TRUNC, 0600);
if (fd < 0) PFATAL("Unable to create '%s'", out_file);

no more unlink