diff options
Diffstat (limited to 'utils/libtokencap')
| -rw-r--r-- | utils/libtokencap/README.md | 8 | ||||
| -rw-r--r-- | utils/libtokencap/libtokencap.so.c | 10 |
2 files changed, 13 insertions, 5 deletions
diff --git a/utils/libtokencap/README.md b/utils/libtokencap/README.md index a39ed3a5..343fcce0 100644 --- a/utils/libtokencap/README.md +++ b/utils/libtokencap/README.md @@ -40,10 +40,10 @@ when using afl-gcc. This setting specifically adds the following flags: -fno-builtin-strcasestr ``` -The next step is simply loading this library via LD_PRELOAD. The optimal usage -pattern is to allow afl-fuzz to fuzz normally for a while and build up a corpus, -and then fire off the target binary, with libtokencap.so loaded, on every file -found by AFL in that earlier run. This demonstrates the basic principle: +The next step is to load this library via LD_PRELOAD. The optimal usage pattern +is to allow afl-fuzz to fuzz normally for a while and build up a corpus, and +then fire off the target binary, with libtokencap.so loaded, on every file found +by AFL++ in that earlier run. This demonstrates the basic principle: ``` export AFL_TOKEN_FILE=$PWD/temp_output.txt diff --git a/utils/libtokencap/libtokencap.so.c b/utils/libtokencap/libtokencap.so.c index 3629e804..2b1e3903 100644 --- a/utils/libtokencap/libtokencap.so.c +++ b/utils/libtokencap/libtokencap.so.c @@ -33,6 +33,8 @@ #include "../types.h" #include "../config.h" +#include "debug.h" + #if !defined __linux__ && !defined __APPLE__ && !defined __FreeBSD__ && \ !defined __OpenBSD__ && !defined __NetBSD__ && !defined __DragonFly__ && \ !defined(__HAIKU__) && !defined(__sun) @@ -169,7 +171,7 @@ static void __tokencap_load_mappings(void) { int mib[] = {CTL_VM, VM_PROC, VM_PROC_MAP, __tokencap_pid, sizeof(struct kinfo_vmentry)}; #endif - char * buf, *low, *high; + char *buf, *low, *high; size_t miblen = sizeof(mib) / sizeof(mib[0]); size_t len; @@ -343,6 +345,12 @@ static void __tokencap_dump(const u8 *ptr, size_t len, u8 is_text) { wrt_ok &= (pos == write(__tokencap_out_file, buf, pos)); wrt_ok &= (2 == write(__tokencap_out_file, "\"\n", 2)); + if (!wrt_ok) { + + DEBUGF("%s", "writing to the token file failed\n"); + + } + } /* Replacements for strcmp(), memcmp(), and so on. Note that these will be used |