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fixed gcc analyzer warnings

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This commit is contained in:
Dominik Maier
2020-12-11 13:29:45 +01:00
parent d5ded820e5
commit 609f3d0265
5 changed files with 48 additions and 14 deletions
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18
src/afl-fuzz-init.c
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@ -772,10 +772,17 @@ void perform_dry_run(afl_state_t *afl) {
while (q) {
u8 *use_mem;
u8 use_mem[MAX_FILE];
u8 res;
s32 fd;
if (unlikely(!q->len)) {
WARNF("Skipping 0-sized entry in queue (%s)", q->fname);
continue;
}
u8 *fn = strrchr(q->fname, '/') + 1;
ACTF("Attempting dry run with '%s'...", fn);
@ -783,9 +790,8 @@ void perform_dry_run(afl_state_t *afl) {
fd = open(q->fname, O_RDONLY);
if (fd < 0) { PFATAL("Unable to open '%s'", q->fname); }
use_mem = ck_alloc_nozero(q->len);
if (read(fd, use_mem, q->len) != (ssize_t)q->len) {
u32 read_len = MIN(q->len, (u32)MAX_FILE);
if (read(fd, use_mem, read_len) != (ssize_t)read_len) {
FATAL("Short read from '%s'", q->fname);
@ -794,7 +800,6 @@ void perform_dry_run(afl_state_t *afl) {
close(fd);
res = calibrate_case(afl, q, use_mem, 0, 1);
ck_free(use_mem);
if (afl->stop_soon) { return; }
@ -2449,6 +2454,8 @@ void setup_testcase_shmem(afl_state_t *afl) {
void check_binary(afl_state_t *afl, u8 *fname) {
if (unlikely(!fname)) { FATAL("BUG: Binary name is NULL"); }
u8 * env_path = 0;
struct stat st;
@ -2477,6 +2484,7 @@ void check_binary(afl_state_t *afl, u8 *fname) {
if (delim) {
cur_elem = ck_alloc(delim - env_path + 1);
if (unlikely(!cur_elem)) { FATAL("Unexpected large PATH"); }
memcpy(cur_elem, env_path, delim - env_path);
++delim;