[PATCH v11 09/14] pkt-line: add packet_write_gently()
From: <hidden>
Date: 2016-10-16 23:21:36
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Lars Schneider <redacted> packet_write_fmt_gently() uses format_packet() which lets the caller only send string data via "%s". That means it cannot be used for arbitrary data that may contain NULs. Add packet_write_gently() which writes arbitrary data and does not die in case of an error. The function is used by other pkt-line functions in a subsequent patch. Signed-off-by: Lars Schneider <redacted> Signed-off-by: Junio C Hamano <redacted> --- pkt-line.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/pkt-line.c b/pkt-line.c
index 286eb09..dca5a64 100644
--- a/pkt-line.c
+++ b/pkt-line.c@@ -171,6 +171,23 @@ int packet_write_fmt_gently(int fd, const char *fmt, ...) return status; } +static int packet_write_gently(const int fd_out, const char *buf, size_t size) +{ + static char packet_write_buffer[LARGE_PACKET_MAX]; + size_t packet_size; + + if (size > sizeof(packet_write_buffer) - 4) + return error("packet write failed - data exceeds max packet size"); + + packet_trace(buf, size, 1); + packet_size = size + 4; + set_packet_header(packet_write_buffer, packet_size); + memcpy(packet_write_buffer + 4, buf, size); + if (write_in_full(fd_out, packet_write_buffer, packet_size) == packet_size) + return 0; + return error("packet write failed"); +} + void packet_buf_write(struct strbuf *buf, const char *fmt, ...) { va_list args;
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2.10.0