diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/afl-fuzz-queue.c | 2 | ||||
| -rw-r--r-- | src/afl-fuzz-run.c | 17 |
2 files changed, 16 insertions, 3 deletions
diff --git a/src/afl-fuzz-queue.c b/src/afl-fuzz-queue.c index 71874283..f35df914 100644 --- a/src/afl-fuzz-queue.c +++ b/src/afl-fuzz-queue.c @@ -112,8 +112,10 @@ static u8 check_if_text(struct queue_entry *q) { u8 buf[MAX_FILE]; s32 fd, len = q->len, offset = 0, ascii = 0, utf8 = 0, comp; + if (len >= MAX_FILE) len = MAX_FILE - 1; if ((fd = open(q->fname, O_RDONLY)) < 0) return 0; if ((comp = read(fd, buf, len)) != len) return 0; + buf[len] = 0; close(fd); while (offset < len) { diff --git a/src/afl-fuzz-run.c b/src/afl-fuzz-run.c index 44d3c522..ed4a1081 100644 --- a/src/afl-fuzz-run.c +++ b/src/afl-fuzz-run.c @@ -819,16 +819,27 @@ u8 trim_case(afl_state_t *afl, struct queue_entry *q, u8 *in_buf) { fd = open(q->fname, O_WRONLY | O_CREAT | O_TRUNC, 0600); + if (fd < 0) { PFATAL("Unable to create '%s'", q->fname); } + + u32 written = 0; + while (written < q->len) { + + ssize_t result = write(fd, in_buf, q->len - written); + if (result > 0) written += result; + + } + } else { unlink(q->fname); /* ignore errors */ fd = open(q->fname, O_WRONLY | O_CREAT | O_EXCL, 0600); - } + if (fd < 0) { PFATAL("Unable to create '%s'", q->fname); } - if (fd < 0) { PFATAL("Unable to create '%s'", q->fname); } + ck_write(fd, in_buf, q->len, q->fname); + + } - ck_write(fd, in_buf, q->len, q->fname); close(fd); memcpy(afl->fsrv.trace_bits, afl->clean_trace, afl->fsrv.map_size); |