- const char *suffix;
- char buf[LARGE_PACKET_MAX + 1];
- struct strbuf outbuf = STRBUF_INIT;
- int retval = 0;
-
- if (isatty(2) && !is_terminal_dumb())
- suffix = ANSI_SUFFIX;
- else
- suffix = DUMB_SUFFIX;
-
- while (!retval) {
- const char *b, *brk;
- int band, len;
- len = packet_read(in_stream, NULL, NULL, buf, LARGE_PACKET_MAX, 0);
- if (len == 0)
- break;
- if (len < 1) {
- strbuf_addf(&outbuf,
- "%s%s: protocol error: no band designator",
- outbuf.len ? "\n" : "", me);
- retval = SIDEBAND_PROTOCOL_ERROR;
- break;
- }
- band = buf[0] & 0xff;
- buf[len] = '\0';
- len--;
- switch (band) {
- case 3:
- strbuf_addf(&outbuf, "%s%s", outbuf.len ? "\n" : "",
- DISPLAY_PREFIX);
- maybe_colorize_sideband(&outbuf, buf + 1, len);
-
- retval = SIDEBAND_REMOTE_ERROR;
- break;
- case 2:
- b = buf + 1;
-
- /*
- * Append a suffix to each nonempty line to clear the
- * end of the screen line.
- *
- * The output is accumulated in a buffer and
- * each line is printed to stderr using
- * write(2) to ensure inter-process atomicity.
- */
- while ((brk = strpbrk(b, "\n\r"))) {
- int linelen = brk - b;
-
- if (!outbuf.len)
- strbuf_addstr(&outbuf, DISPLAY_PREFIX);
- if (linelen > 0) {
- maybe_colorize_sideband(&outbuf, b, linelen);
- strbuf_addstr(&outbuf, suffix);
- }
-
- strbuf_addch(&outbuf, *brk);
- xwrite(2, outbuf.buf, outbuf.len);
- strbuf_reset(&outbuf);
-
- b = brk + 1;
- }