[PATCH v3 29/35] pkt-line: add packet_buf_write_len function
STALE3127d
From: Brandon Williams <hidden>
Date: 2018-02-07 01:14:30
Subsystem:
the rest · Maintainer:
Linus Torvalds
Revision v3 of 4 in this series.
Revisions (4)
- v3 current
- v4 [diff vs current]
- v5 [diff vs current]
- v6 [diff vs current]
Add the 'packet_buf_write_len()' function which allows for writing an arbitrary length buffer into a 'struct strbuf' and formatting it in packet-line format. Signed-off-by: Brandon Williams <redacted> --- pkt-line.c | 16 ++++++++++++++++ pkt-line.h | 1 + 2 files changed, 17 insertions(+)
diff --git a/pkt-line.c b/pkt-line.c
index 726e109ca..5a8a17ecc 100644
--- a/pkt-line.c
+++ b/pkt-line.c@@ -215,6 +215,22 @@ void packet_buf_write(struct strbuf *buf, const char *fmt, ...) va_end(args); } +void packet_buf_write_len(struct strbuf *buf, const char *data, size_t len) +{ + size_t orig_len, n; + + orig_len = buf->len; + strbuf_addstr(buf, "0000"); + strbuf_add(buf, data, len); + n = buf->len - orig_len; + + if (n > LARGE_PACKET_MAX) + die("protocol error: impossibly long line"); + + set_packet_header(&buf->buf[orig_len], n); + packet_trace(buf->buf + orig_len + 4, n - 4, 1); +} + int write_packetized_from_fd(int fd_in, int fd_out) { static char buf[LARGE_PACKET_DATA_MAX];
diff --git a/pkt-line.h b/pkt-line.h
index 16fe8bdbf..63724d4bf 100644
--- a/pkt-line.h
+++ b/pkt-line.h@@ -26,6 +26,7 @@ void packet_buf_flush(struct strbuf *buf); void packet_buf_delim(struct strbuf *buf); void packet_write(int fd_out, const char *buf, size_t size); void packet_buf_write(struct strbuf *buf, const char *fmt, ...) __attribute__((format (printf, 2, 3))); +void packet_buf_write_len(struct strbuf *buf, const char *data, size_t len); int packet_flush_gently(int fd); int packet_write_fmt_gently(int fd, const char *fmt, ...) __attribute__((format (printf, 2, 3))); int write_packetized_from_fd(int fd_in, int fd_out);
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2.16.0.rc1.238.g530d649a79-goog