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Diffstat (limited to 'pkt-line.c')
-rw-r--r--pkt-line.c111
1 files changed, 97 insertions, 14 deletions
diff --git a/pkt-line.c b/pkt-line.c
index 04d10bbd03..d4b71d3e82 100644
--- a/pkt-line.c
+++ b/pkt-line.c
@@ -129,12 +129,14 @@ static void set_packet_header(char *buf, const int size)
#undef hex
}
-static void format_packet(struct strbuf *out, const char *fmt, va_list args)
+static void format_packet(struct strbuf *out, const char *prefix,
+ const char *fmt, va_list args)
{
size_t orig_len, n;
orig_len = out->len;
strbuf_addstr(out, "0000");
+ strbuf_addstr(out, prefix);
strbuf_vaddf(out, fmt, args);
n = out->len - orig_len;
@@ -145,13 +147,13 @@ static void format_packet(struct strbuf *out, const char *fmt, va_list args)
packet_trace(out->buf + orig_len + 4, n - 4, 1);
}
-static int packet_write_fmt_1(int fd, int gently,
+static int packet_write_fmt_1(int fd, int gently, const char *prefix,
const char *fmt, va_list args)
{
static struct strbuf buf = STRBUF_INIT;
strbuf_reset(&buf);
- format_packet(&buf, fmt, args);
+ format_packet(&buf, prefix, fmt, args);
if (write_in_full(fd, buf.buf, buf.len) < 0) {
if (!gently) {
check_pipe(errno);
@@ -168,7 +170,7 @@ void packet_write_fmt(int fd, const char *fmt, ...)
va_list args;
va_start(args, fmt);
- packet_write_fmt_1(fd, 0, fmt, args);
+ packet_write_fmt_1(fd, 0, "", fmt, args);
va_end(args);
}
@@ -178,7 +180,7 @@ int packet_write_fmt_gently(int fd, const char *fmt, ...)
va_list args;
va_start(args, fmt);
- status = packet_write_fmt_1(fd, 1, fmt, args);
+ status = packet_write_fmt_1(fd, 1, "", fmt, args);
va_end(args);
return status;
}
@@ -211,7 +213,7 @@ void packet_buf_write(struct strbuf *buf, const char *fmt, ...)
va_list args;
va_start(args, fmt);
- format_packet(buf, fmt, args);
+ format_packet(buf, "", fmt, args);
va_end(args);
}
@@ -346,6 +348,10 @@ enum packet_read_status packet_read_with_status(int fd, char **src_buffer,
return PACKET_READ_EOF;
}
+ if ((options & PACKET_READ_DIE_ON_ERR_PACKET) &&
+ starts_with(buffer, "ERR "))
+ die(_("remote error: %s"), buffer + 4);
+
if ((options & PACKET_READ_CHOMP_NEWLINE) &&
len && buffer[len-1] == '\n')
len--;
@@ -433,6 +439,29 @@ ssize_t read_packetized_to_strbuf(int fd_in, struct strbuf *sb_out)
return sb_out->len - orig_len;
}
+int recv_sideband(const char *me, int in_stream, int out)
+{
+ char buf[LARGE_PACKET_MAX + 1];
+ int len;
+ struct strbuf scratch = STRBUF_INIT;
+ enum sideband_type sideband_type;
+
+ while (1) {
+ len = packet_read(in_stream, NULL, NULL, buf, LARGE_PACKET_MAX,
+ 0);
+ if (!demultiplex_sideband(me, buf, len, 0, &scratch,
+ &sideband_type))
+ continue;
+ switch (sideband_type) {
+ case SIDEBAND_PRIMARY:
+ write_or_die(out, buf + 1, len - 1);
+ break;
+ default: /* errors: message already written */
+ return sideband_type;
+ }
+ }
+}
+
/* Packet Reader Functions */
void packet_reader_init(struct packet_reader *reader, int fd,
char *src_buffer, size_t src_len,
@@ -446,25 +475,43 @@ void packet_reader_init(struct packet_reader *reader, int fd,
reader->buffer = packet_buffer;
reader->buffer_size = sizeof(packet_buffer);
reader->options = options;
+ reader->me = "git";
}
enum packet_read_status packet_reader_read(struct packet_reader *reader)
{
+ struct strbuf scratch = STRBUF_INIT;
+
if (reader->line_peeked) {
reader->line_peeked = 0;
return reader->status;
}
- reader->status = packet_read_with_status(reader->fd,
- &reader->src_buffer,
- &reader->src_len,
- reader->buffer,
- reader->buffer_size,
- &reader->pktlen,
- reader->options);
+ /*
+ * Consume all progress packets until a primary payload packet is
+ * received
+ */
+ while (1) {
+ enum sideband_type sideband_type;
+ reader->status = packet_read_with_status(reader->fd,
+ &reader->src_buffer,
+ &reader->src_len,
+ reader->buffer,
+ reader->buffer_size,
+ &reader->pktlen,
+ reader->options);
+ if (!reader->use_sideband)
+ break;
+ if (demultiplex_sideband(reader->me, reader->buffer,
+ reader->pktlen, 1, &scratch,
+ &sideband_type))
+ break;
+ }
if (reader->status == PACKET_READ_NORMAL)
- reader->line = reader->buffer;
+ /* Skip the sideband designator if sideband is used */
+ reader->line = reader->use_sideband ?
+ reader->buffer + 1 : reader->buffer;
else
reader->line = NULL;
@@ -482,3 +529,39 @@ enum packet_read_status packet_reader_peek(struct packet_reader *reader)
reader->line_peeked = 1;
return reader->status;
}
+
+void packet_writer_init(struct packet_writer *writer, int dest_fd)
+{
+ writer->dest_fd = dest_fd;
+ writer->use_sideband = 0;
+}
+
+void packet_writer_write(struct packet_writer *writer, const char *fmt, ...)
+{
+ va_list args;
+
+ va_start(args, fmt);
+ packet_write_fmt_1(writer->dest_fd, 0,
+ writer->use_sideband ? "\001" : "", fmt, args);
+ va_end(args);
+}
+
+void packet_writer_error(struct packet_writer *writer, const char *fmt, ...)
+{
+ va_list args;
+
+ va_start(args, fmt);
+ packet_write_fmt_1(writer->dest_fd, 0,
+ writer->use_sideband ? "\003" : "ERR ", fmt, args);
+ va_end(args);
+}
+
+void packet_writer_delim(struct packet_writer *writer)
+{
+ packet_delim(writer->dest_fd);
+}
+
+void packet_writer_flush(struct packet_writer *writer)
+{
+ packet_flush(writer->dest_fd);
+}