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authorBrandon Williams <bmwill@google.com>2018-03-15 10:31:35 -0700
committerJunio C Hamano <gitster@pobox.com>2018-03-15 12:01:09 -0700
commitf1f4d8acf400912a9e2a7b97080afced56719c29 (patch)
treee4db72587bbab47709c0c4c49c80e5bd7e05186c /pkt-line.c
parentedc9caf7e2ecd3d5327e78a3e539eda61a0e4d81 (diff)
downloadgit-f1f4d8acf400912a9e2a7b97080afced56719c29.tar.gz
pkt-line: add packet_buf_write_len function
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 <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'pkt-line.c')
-rw-r--r--pkt-line.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/pkt-line.c b/pkt-line.c
index 7296731cf3..555eb2a507 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(data, len, 1);
+}
+
int write_packetized_from_fd(int fd_in, int fd_out)
{
static char buf[LARGE_PACKET_DATA_MAX];