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fix bug and simplify std.crypto.tls.Client.limitVecs

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This commit is contained in:
Jonathan Marler 2023-03-06 18:29:27 -07:00 committed by Andrew Kelley
parent f05cd008d8
commit 5def162391
1 changed files with 6 additions and 9 deletions
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15
lib/std/crypto/tls/Client.zig
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@ -1330,18 +1330,15 @@ const VecPut = struct {
/// Limit iovecs to a specific byte size.
fn limitVecs(iovecs: []std.os.iovec, len: usize) []std.os.iovec {
var vec_i: usize = 0;
var bytes_left: usize = len;
while (true) {
if (bytes_left >= iovecs[vec_i].iov_len) {
bytes_left -= iovecs[vec_i].iov_len;
vec_i += 1;
if (vec_i == iovecs.len or bytes_left == 0) return iovecs[0..vec_i];
continue;
for (iovecs, 0..) |*iovec, vec_i| {
if (bytes_left <= iovec.iov_len) {
iovec.iov_len = bytes_left;
return iovecs[0 .. vec_i + 1];
}
iovecs[vec_i].iov_len = bytes_left;
return iovecs[0..vec_i];
bytes_left -= iovec.iov_len;
}
return iovecs;
}
/// The priority order here is chosen based on what crypto algorithms Zig has