From a8e568f248628c39e0bc34173470988034723627 Mon Sep 17 00:00:00 2001 From: vanhauser-thc Date: Wed, 9 Dec 2020 11:30:04 +0100 Subject: move libdislocator, libtokencap and qbdi_mode to utils/ --- utils/qbdi_mode/demo-so.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100755 utils/qbdi_mode/demo-so.c (limited to 'utils/qbdi_mode/demo-so.c') diff --git a/utils/qbdi_mode/demo-so.c b/utils/qbdi_mode/demo-so.c new file mode 100755 index 00000000..dd367036 --- /dev/null +++ b/utils/qbdi_mode/demo-so.c @@ -0,0 +1,41 @@ +#include + +// gcc -shared -o libdemo.so demo-so.c -w +int target_func(char *buf, int size) { + + printf("buffer:%p, size:%p\n", buf, size); + switch (buf[0]) { + + case 1: + puts("222"); + if (buf[1] == '\x44') { + + puts("null ptr deference"); + *(char *)(0) = 1; + + } + + break; + case 0xff: + if (buf[2] == '\xff') { + + if (buf[1] == '\x44') { + + puts("crash...."); + *(char *)(0xdeadbeef) = 1; + + } + + } + + break; + default: + puts("default action"); + break; + + } + + return 1; + +} + -- cgit 1.4.1