From: Lars Schneider <larsxschneider@xxxxxxxxx>
set_packet_header() converts an integer to a 4 byte hex string. Make
this function locally available so that other pkt-line functions can
use it.
Signed-off-by: Lars Schneider <larsxschneider@xxxxxxxxx>
---
pkt-line.c | 19 +++++++++++++------
1 file changed, 13 insertions(+), 6 deletions(-)
diff --git a/pkt-line.c b/pkt-line.c
index 0a9b61c..e8adc0f 100644
--- a/pkt-line.c
+++ b/pkt-line.c
@@ -97,10 +97,20 @@ void packet_buf_flush(struct strbuf *buf)
strbuf_add(buf, "0000", 4);
}
-#define hex(a) (hexchar[(a) & 15])
-static void format_packet(struct strbuf *out, const char *fmt, va_list args)
+static void set_packet_header(char *buf, const int size)
{
static char hexchar[] = "0123456789abcdef";
+
+ #define hex(a) (hexchar[(a) & 15])
+ buf[0] = hex(size >> 12);
+ buf[1] = hex(size >> 8);
+ buf[2] = hex(size >> 4);
+ buf[3] = hex(size);
+ #undef hex
+}
+
+static void format_packet(struct strbuf *out, const char *fmt, va_list args)
+{
size_t orig_len, n;
orig_len = out->len;
@@ -111,10 +121,7 @@ static void format_packet(struct strbuf *out, const char *fmt, va_list args)
if (n > LARGE_PACKET_MAX)
die("protocol error: impossibly long line");
- out->buf[orig_len + 0] = hex(n >> 12);
- out->buf[orig_len + 1] = hex(n >> 8);
- out->buf[orig_len + 2] = hex(n >> 4);
- out->buf[orig_len + 3] = hex(n);
+ set_packet_header(&out->buf[orig_len], n);
packet_trace(out->buf + orig_len + 4, n - 4, 1);
}
--
2.10.0