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fix issue #198 AFL_TMPDIR is ignored for file .cur_input

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This commit is contained in:
hexcoder-
2020-02-17 22:29:17 +01:00
parent df55fb1f14
commit 8330e0e8ba
2 changed files with 15 additions and 9 deletions
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8
src/afl-fuzz-init.c
View File

@ -1224,11 +1224,11 @@ void maybe_delete_out_dir(void) {
if (file_extension) { if (file_extension) {
fn = alloc_printf("%s/.cur_input.%s", out_dir, file_extension); fn = alloc_printf("%s/.cur_input.%s", tmp_dir, file_extension);
} else { } else {
fn = alloc_printf("%s/.cur_input", out_dir); fn = alloc_printf("%s/.cur_input", tmp_dir);
} }
@ -1440,11 +1440,11 @@ void setup_stdio_file(void) {
u8* fn; u8* fn;
if (file_extension) { if (file_extension) {
fn = alloc_printf("%s/.cur_input.%s", out_dir, file_extension); fn = alloc_printf("%s/.cur_input.%s", tmp_dir, file_extension);
} else { } else {
fn = alloc_printf("%s/.cur_input", out_dir); fn = alloc_printf("%s/.cur_input", tmp_dir);
} }

16
src/afl-fuzz.c
View File

@ -655,11 +655,17 @@ int main(int argc, char** argv, char** envp) {
if ((tmp_dir = getenv("AFL_TMPDIR")) != NULL) { if ((tmp_dir = getenv("AFL_TMPDIR")) != NULL) {
char tmpfile[strlen(tmp_dir + 16)]; char tmpfile[file_extension
sprintf(tmpfile, "%s/%s", tmp_dir, ".cur_input"); ? strlen(tmp_dir) + 1 + 10 + 1 + strlen(file_extension) + 1
: strlen(tmp_dir) + 1 + 10 + 1];
if (file_extension) {
sprintf(tmpfile, "%s/.cur_input.%s", tmp_dir, file_extension);
} else {
sprintf(tmpfile, "%s/.cur_input", tmp_dir);
}
if (access(tmpfile, F_OK) != if (access(tmpfile, F_OK) !=
-1) // there is still a race condition here, but well ... -1) // there is still a race condition here, but well ...
FATAL("TMP_DIR already has an existing temporary input file: %s", FATAL("AFL_TMPDIR already has an existing temporary input file: %s",
tmpfile); tmpfile);
} else } else
@ -854,11 +860,11 @@ int main(int argc, char** argv, char** envp) {
if (file_extension) { if (file_extension) {
out_file = alloc_printf("%s/.cur_input.%s", out_dir, file_extension); out_file = alloc_printf("%s/.cur_input.%s", tmp_dir, file_extension);
} else { } else {
out_file = alloc_printf("%s/.cur_input", out_dir); out_file = alloc_printf("%s/.cur_input", tmp_dir);
} }