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Currently pcap_frame() assumes that if write() doesn't return an error, it has written everything we want. That's not necessarily true, because it could return a short write. That's not likely to happen on a regular file, but there's not a lot of reason not to be robust here; it's conceivable we might want to direct the pcap fd at a named pipe or similar. So, make pcap_frame() handle short frames by using the write_remainder() helper. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> [sbrivio: Formatting fix, and avoid gcc warning in pcap_frame()] Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
15 lines
356 B
C
15 lines
356 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright (c) 2021 Red Hat GmbH
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* Author: Stefano Brivio <sbrivio@redhat.com>
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*/
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#ifndef PCAP_H
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#define PCAP_H
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void pcap(const char *pkt, size_t len);
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void pcap_multiple(const struct iovec *iov, size_t frame_parts, unsigned int n,
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size_t offset);
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void pcap_init(struct ctx *c);
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#endif /* PCAP_H */
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