diff options
| author | vanhauser-thc <vh@thc.org> | 2024-06-07 11:48:58 +0200 |
|---|---|---|
| committer | vanhauser-thc <vh@thc.org> | 2024-06-07 11:48:58 +0200 |
| commit | f0937f96d49fdb23865e2025576ab5c0049ef5b5 (patch) | |
| tree | b7bc4d32cc99ab8ff9e5bcec17c3fa854226a5db | |
| parent | 92cbdb9f45f4d0b6ed146f01142aafc1e8b94f7f (diff) | |
| download | afl++-f0937f96d49fdb23865e2025576ab5c0049ef5b5.tar.gz | |
target hash
| -rw-r--r-- | TODO.md | 1 | ||||
| -rw-r--r-- | include/afl-fuzz.h | 1 | ||||
| -rw-r--r-- | src/afl-common.c | 18 |
3 files changed, 20 insertions, 0 deletions
diff --git a/TODO.md b/TODO.md index ace07434..aba3cf81 100644 --- a/TODO.md +++ b/TODO.md @@ -2,6 +2,7 @@ ## Must + - fast restart of afl-fuzz if cmdline + target hash is the same - hardened_usercopy=0 page_alloc.shuffle=0 - add value_profile but only enable after 15 minutes without finds - cmplog max items env? diff --git a/include/afl-fuzz.h b/include/afl-fuzz.h index d3501e8d..e3e4e246 100644 --- a/include/afl-fuzz.h +++ b/include/afl-fuzz.h @@ -1278,6 +1278,7 @@ void get_core_count(afl_state_t *); void fix_up_sync(afl_state_t *); void check_asan_opts(afl_state_t *); void check_binary(afl_state_t *, u8 *); +u64 get_binary_hash(u8 *fn); void check_if_tty(afl_state_t *); void save_cmdline(afl_state_t *, u32, char **); void read_foreign_testcases(afl_state_t *, int); diff --git a/src/afl-common.c b/src/afl-common.c index efdb5d60..4250fb36 100644 --- a/src/afl-common.c +++ b/src/afl-common.c @@ -51,6 +51,8 @@ #include <fcntl.h> #include <signal.h> +#include "hash.h" + u8 be_quiet = 0; u8 *doc_path = ""; u8 last_intr = 0; @@ -167,6 +169,22 @@ void set_sanitizer_defaults() { } +u64 get_binary_hash(u8 *fn) { + + int fd = open(fn, O_RDONLY); + if (fd < 0) { PFATAL("Unable to open '%s'", fn); } + struct stat st; + if (fstat(fd, &st) < 0) { PFATAL("Unable to fstat '%s'", fn); } + u32 f_len = st.st_size; + u8 *f_data = mmap(0, f_len, PROT_READ, MAP_PRIVATE, fd, 0); + if (f_data == MAP_FAILED) { PFATAL("Unable to mmap file '%s'", fn); } + close(fd); + u64 hash = hash64(f_data, f_len, 0); + if (munmap(f_data, f_len)) { PFATAL("unmap() failed"); } + return hash; + +} + u32 check_binary_signatures(u8 *fn) { int ret = 0, fd = open(fn, O_RDONLY); |