1 files changed, 0 insertions, 582 deletions
diff --git a/third_party/git/pkt-line.c b/third_party/git/pkt-line.c
deleted file mode 100644
index 844c253ccd9a..000000000000
--- a/third_party/git/pkt-line.c
+++ /dev/null
@@ -1,582 +0,0 @@
-#include "cache.h"
-#include "pkt-line.h"
-#include "run-command.h"
-
-char packet_buffer[LARGE_PACKET_MAX];
-static const char *packet_trace_prefix = "git";
-static struct trace_key trace_packet = TRACE_KEY_INIT(PACKET);
-static struct trace_key trace_pack = TRACE_KEY_INIT(PACKFILE);
-
-void packet_trace_identity(const char *prog)
-{
-	packet_trace_prefix = xstrdup(prog);
-}
-
-static const char *get_trace_prefix(void)
-{
-	return in_async() ? "sideband" : packet_trace_prefix;
-}
-
-static int packet_trace_pack(const char *buf, unsigned int len, int sideband)
-{
-	if (!sideband) {
-		trace_verbatim(&trace_pack, buf, len);
-		return 1;
-	} else if (len && *buf == '\1') {
-		trace_verbatim(&trace_pack, buf + 1, len - 1);
-		return 1;
-	} else {
-		/* it's another non-pack sideband */
-		return 0;
-	}
-}
-
-static void packet_trace(const char *buf, unsigned int len, int write)
-{
-	int i;
-	struct strbuf out;
-	static int in_pack, sideband;
-
-	if (!trace_want(&trace_packet) && !trace_want(&trace_pack))
-		return;
-
-	if (in_pack) {
-		if (packet_trace_pack(buf, len, sideband))
-			return;
-	} else if (starts_with(buf, "PACK") || starts_with(buf, "\1PACK")) {
-		in_pack = 1;
-		sideband = *buf == '\1';
-		packet_trace_pack(buf, len, sideband);
-
-		/*
-		 * Make a note in the human-readable trace that the pack data
-		 * started.
-		 */
-		buf = "PACK ...";
-		len = strlen(buf);
-	}
-
-	if (!trace_want(&trace_packet))
-		return;
-
-	/* +32 is just a guess for header + quoting */
-	strbuf_init(&out, len+32);
-
-	strbuf_addf(&out, "packet: %12s%c ",
-		    get_trace_prefix(), write ? '>' : '<');
-
-	/* XXX we should really handle printable utf8 */
-	for (i = 0; i < len; i++) {
-		/* suppress newlines */
-		if (buf[i] == '\n')
-			continue;
-		if (buf[i] >= 0x20 && buf[i] <= 0x7e)
-			strbuf_addch(&out, buf[i]);
-		else
-			strbuf_addf(&out, "\\%o", buf[i]);
-	}
-
-	strbuf_addch(&out, '\n');
-	trace_strbuf(&trace_packet, &out);
-	strbuf_release(&out);
-}
-
-/*
- * If we buffered things up above (we don't, but we should),
- * we'd flush it here
- */
-void packet_flush(int fd)
-{
-	packet_trace("0000", 4, 1);
-	if (write_in_full(fd, "0000", 4) < 0)
-		die_errno(_("unable to write flush packet"));
-}
-
-void packet_delim(int fd)
-{
-	packet_trace("0001", 4, 1);
-	if (write_in_full(fd, "0001", 4) < 0)
-		die_errno(_("unable to write delim packet"));
-}
-
-void packet_response_end(int fd)
-{
-	packet_trace("0002", 4, 1);
-	if (write_in_full(fd, "0002", 4) < 0)
-		die_errno(_("unable to write stateless separator packet"));
-}
-
-int packet_flush_gently(int fd)
-{
-	packet_trace("0000", 4, 1);
-	if (write_in_full(fd, "0000", 4) < 0)
-		return error(_("flush packet write failed"));
-	return 0;
-}
-
-void packet_buf_flush(struct strbuf *buf)
-{
-	packet_trace("0000", 4, 1);
-	strbuf_add(buf, "0000", 4);
-}
-
-void packet_buf_delim(struct strbuf *buf)
-{
-	packet_trace("0001", 4, 1);
-	strbuf_add(buf, "0001", 4);
-}
-
-void set_packet_header(char *buf, 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 *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;
-
-	if (n > LARGE_PACKET_MAX)
-		die(_("protocol error: impossibly long line"));
-
-	set_packet_header(&out->buf[orig_len], n);
-	packet_trace(out->buf + orig_len + 4, n - 4, 1);
-}
-
-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, prefix, fmt, args);
-	if (write_in_full(fd, buf.buf, buf.len) < 0) {
-		if (!gently) {
-			check_pipe(errno);
-			die_errno(_("packet write with format failed"));
-		}
-		return error(_("packet write with format failed"));
-	}
-
-	return 0;
-}
-
-void packet_write_fmt(int fd, const char *fmt, ...)
-{
-	va_list args;
-
-	va_start(args, fmt);
-	packet_write_fmt_1(fd, 0, "", fmt, args);
-	va_end(args);
-}
-
-int packet_write_fmt_gently(int fd, const char *fmt, ...)
-{
-	int status;
-	va_list args;
-
-	va_start(args, fmt);
-	status = packet_write_fmt_1(fd, 1, "", fmt, args);
-	va_end(args);
-	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) < 0)
-		return error(_("packet write failed"));
-	return 0;
-}
-
-void packet_write(int fd_out, const char *buf, size_t size)
-{
-	if (packet_write_gently(fd_out, buf, size))
-		die_errno(_("packet write failed"));
-}
-
-void packet_buf_write(struct strbuf *buf, const char *fmt, ...)
-{
-	va_list args;
-
-	va_start(args, fmt);
-	format_packet(buf, "", fmt, args);
-	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];
-	int err = 0;
-	ssize_t bytes_to_write;
-
-	while (!err) {
-		bytes_to_write = xread(fd_in, buf, sizeof(buf));
-		if (bytes_to_write < 0)
-			return COPY_READ_ERROR;
-		if (bytes_to_write == 0)
-			break;
-		err = packet_write_gently(fd_out, buf, bytes_to_write);
-	}
-	if (!err)
-		err = packet_flush_gently(fd_out);
-	return err;
-}
-
-int write_packetized_from_buf(const char *src_in, size_t len, int fd_out)
-{
-	int err = 0;
-	size_t bytes_written = 0;
-	size_t bytes_to_write;
-
-	while (!err) {
-		if ((len - bytes_written) > LARGE_PACKET_DATA_MAX)
-			bytes_to_write = LARGE_PACKET_DATA_MAX;
-		else
-			bytes_to_write = len - bytes_written;
-		if (bytes_to_write == 0)
-			break;
-		err = packet_write_gently(fd_out, src_in + bytes_written, bytes_to_write);
-		bytes_written += bytes_to_write;
-	}
-	if (!err)
-		err = packet_flush_gently(fd_out);
-	return err;
-}
-
-static int get_packet_data(int fd, char **src_buf, size_t *src_size,
-			   void *dst, unsigned size, int options)
-{
-	ssize_t ret;
-
-	if (fd >= 0 && src_buf && *src_buf)
-		BUG("multiple sources given to packet_read");
-
-	/* Read up to "size" bytes from our source, whatever it is. */
-	if (src_buf && *src_buf) {
-		ret = size < *src_size ? size : *src_size;
-		memcpy(dst, *src_buf, ret);
-		*src_buf += ret;
-		*src_size -= ret;
-	} else {
-		ret = read_in_full(fd, dst, size);
-		if (ret < 0)
-			die_errno(_("read error"));
-	}
-
-	/* And complain if we didn't get enough bytes to satisfy the read. */
-	if (ret != size) {
-		if (options & PACKET_READ_GENTLE_ON_EOF)
-			return -1;
-
-		die(_("the remote end hung up unexpectedly"));
-	}
-
-	return ret;
-}
-
-int packet_length(const char lenbuf_hex[4])
-{
-	int val = hex2chr(lenbuf_hex);
-	return (val < 0) ? val : (val << 8) | hex2chr(lenbuf_hex + 2);
-}
-
-enum packet_read_status packet_read_with_status(int fd, char **src_buffer,
-						size_t *src_len, char *buffer,
-						unsigned size, int *pktlen,
-						int options)
-{
-	int len;
-	char linelen[4];
-
-	if (get_packet_data(fd, src_buffer, src_len, linelen, 4, options) < 0) {
-		*pktlen = -1;
-		return PACKET_READ_EOF;
-	}
-
-	len = packet_length(linelen);
-
-	if (len < 0) {
-		die(_("protocol error: bad line length character: %.4s"), linelen);
-	} else if (!len) {
-		packet_trace("0000", 4, 0);
-		*pktlen = 0;
-		return PACKET_READ_FLUSH;
-	} else if (len == 1) {
-		packet_trace("0001", 4, 0);
-		*pktlen = 0;
-		return PACKET_READ_DELIM;
-	} else if (len == 2) {
-		packet_trace("0002", 4, 0);
-		*pktlen = 0;
-		return PACKET_READ_RESPONSE_END;
-	} else if (len < 4) {
-		die(_("protocol error: bad line length %d"), len);
-	}
-
-	len -= 4;
-	if ((unsigned)len >= size)
-		die(_("protocol error: bad line length %d"), len);
-
-	if (get_packet_data(fd, src_buffer, src_len, buffer, len, options) < 0) {
-		*pktlen = -1;
-		return PACKET_READ_EOF;
-	}
-
-	if ((options & PACKET_READ_CHOMP_NEWLINE) &&
-	    len && buffer[len-1] == '\n')
-		len--;
-
-	buffer[len] = 0;
-	packet_trace(buffer, len, 0);
-
-	if ((options & PACKET_READ_DIE_ON_ERR_PACKET) &&
-	    starts_with(buffer, "ERR "))
-		die(_("remote error: %s"), buffer + 4);
-
-	*pktlen = len;
-	return PACKET_READ_NORMAL;
-}
-
-int packet_read(int fd, char **src_buffer, size_t *src_len,
-		char *buffer, unsigned size, int options)
-{
-	int pktlen = -1;
-
-	packet_read_with_status(fd, src_buffer, src_len, buffer, size,
-				&pktlen, options);
-
-	return pktlen;
-}
-
-static char *packet_read_line_generic(int fd,
-				      char **src, size_t *src_len,
-				      int *dst_len)
-{
-	int len = packet_read(fd, src, src_len,
-			      packet_buffer, sizeof(packet_buffer),
-			      PACKET_READ_CHOMP_NEWLINE);
-	if (dst_len)
-		*dst_len = len;
-	return (len > 0) ? packet_buffer : NULL;
-}
-
-char *packet_read_line(int fd, int *len_p)
-{
-	return packet_read_line_generic(fd, NULL, NULL, len_p);
-}
-
-int packet_read_line_gently(int fd, int *dst_len, char **dst_line)
-{
-	int len = packet_read(fd, NULL, NULL,
-			      packet_buffer, sizeof(packet_buffer),
-			      PACKET_READ_CHOMP_NEWLINE|PACKET_READ_GENTLE_ON_EOF);
-	if (dst_len)
-		*dst_len = len;
-	if (dst_line)
-		*dst_line = (len > 0) ? packet_buffer : NULL;
-	return len;
-}
-
-char *packet_read_line_buf(char **src, size_t *src_len, int *dst_len)
-{
-	return packet_read_line_generic(-1, src, src_len, dst_len);
-}
-
-ssize_t read_packetized_to_strbuf(int fd_in, struct strbuf *sb_out)
-{
-	int packet_len;
-
-	size_t orig_len = sb_out->len;
-	size_t orig_alloc = sb_out->alloc;
-
-	for (;;) {
-		strbuf_grow(sb_out, LARGE_PACKET_DATA_MAX);
-		packet_len = packet_read(fd_in, NULL, NULL,
-			/* strbuf_grow() above always allocates one extra byte to
-			 * store a '\0' at the end of the string. packet_read()
-			 * writes a '\0' extra byte at the end, too. Let it know
-			 * that there is already room for the extra byte.
-			 */
-			sb_out->buf + sb_out->len, LARGE_PACKET_DATA_MAX+1,
-			PACKET_READ_GENTLE_ON_EOF);
-		if (packet_len <= 0)
-			break;
-		sb_out->len += packet_len;
-	}
-
-	if (packet_len < 0) {
-		if (orig_alloc == 0)
-			strbuf_release(sb_out);
-		else
-			strbuf_setlen(sb_out, orig_len);
-		return packet_len;
-	}
-	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,
-			int options)
-{
-	memset(reader, 0, sizeof(*reader));
-
-	reader->fd = fd;
-	reader->src_buffer = src_buffer;
-	reader->src_len = src_len;
-	reader->buffer = packet_buffer;
-	reader->buffer_size = sizeof(packet_buffer);
-	reader->options = options;
-	reader->me = "git";
-	reader->hash_algo = &hash_algos[GIT_HASH_SHA1];
-}
-
-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;
-	}
-
-	/*
-	 * 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)
-		/* Skip the sideband designator if sideband is used */
-		reader->line = reader->use_sideband ?
-			reader->buffer + 1 : reader->buffer;
-	else
-		reader->line = NULL;
-
-	return reader->status;
-}
-
-enum packet_read_status packet_reader_peek(struct packet_reader *reader)
-{
-	/* Only allow peeking a single line */
-	if (reader->line_peeked)
-		return reader->status;
-
-	/* Peek a line by reading it and setting peeked flag */
-	packet_reader_read(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);
-}