Fix two minor logical bugs - #1038
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Aug 1, 2026
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- match.c: Guard against an out-of-bounds array access in match_sums()
- generator.c: Remove dead code in atomic_create()
If xfer_sum_len were 0, the loop exits immediately with i=0, and the subsequent sender_file_sum[i-1] access becomes sender_file_sum[-1] — UB. Add an `i > 0` guard to make the read-error checksum corruption path safe for a zero-length sum. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Signed-off-by: Shreenidhi Shedi <yesshedi@gmail.com>
rsync redefines strdup to my_strdup (via rsync.h), which calls out_of_memory and never returns NULL. The NULL check after the strdup call was therefore unreachable and misleading — a reader might infer the system strdup is in use or that a NULL return is possible here. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Signed-off-by: Shreenidhi Shedi <yesshedi@gmail.com>
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