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Fix an UBSAN warning

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This commit is contained in:
Justine Tunney 2022-06-10 03:33:05 -07:00
parent f8520e10b2
commit fde939291d
1 changed files with 1 additions and 1 deletions
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2
libc/zipos/read.c
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@ -42,7 +42,7 @@ ssize_t __zipos_read(struct ZiposHandle *h, const struct iovec *iov,
x = y = opt_offset != -1 ? opt_offset : h->pos;
for (i = 0; i < iovlen && y < h->size; ++i, y += b) {
b = min(iov[i].iov_len, h->size - y);
memcpy(iov[i].iov_base, h->mem + y, b);
if (b) memcpy(iov[i].iov_base, h->mem + y, b);
}
if (opt_offset == -1) h->pos = y;
return y - x;