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| author | Your Name <you@example.com> | 2021-12-17 18:23:49 +0000 |
|---|---|---|
| committer | Your Name <you@example.com> | 2021-12-17 18:23:49 +0000 |
| commit | a3421f80998ea7f78b5dc9a4047e6f2a5f79c4f4 (patch) | |
| tree | 4cc0deb52997967880d368c7b466d3e603b7c1df /frida_mode/addr | |
| parent | fd1d1621497e252a7be7599371875d170034d71f (diff) | |
| download | afl++-a3421f80998ea7f78b5dc9a4047e6f2a5f79c4f4.tar.gz | |
Added addr for finding default base address
Diffstat (limited to 'frida_mode/addr')
| -rw-r--r-- | frida_mode/addr/addr.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/frida_mode/addr/addr.c b/frida_mode/addr/addr.c new file mode 100644 index 00000000..40ddc5ba --- /dev/null +++ b/frida_mode/addr/addr.c @@ -0,0 +1,39 @@ +#include <errno.h> +#include <link.h> +#include <stdio.h> +#include <unistd.h> +#include <sys/personality.h> + +#define UNUSED_PARAMETER(x) (void)(x) + +int phdr_callback(struct dl_phdr_info *info, size_t size, void *data) +{ + UNUSED_PARAMETER (size); + + ElfW(Addr) * base = data; + + if (info->dlpi_name[0] == 0) { *base = info->dlpi_addr; } + return 0; +} + +int main (int argc, char** argv, char** envp) { + UNUSED_PARAMETER (argc); + + ElfW(Addr) base = 0; + + int persona = personality(ADDR_NO_RANDOMIZE); + if (persona == -1) { + + printf("Failed to set ADDR_NO_RANDOMIZE: %d", errno); + return 1; + } + + if ((persona & ADDR_NO_RANDOMIZE) == 0) { execvpe(argv[0], argv, envp); } + + dl_iterate_phdr(phdr_callback, &base); + + printf("0x%016lx\n", base); + if (base == 0) { return 1; } + + return 0; +} |
