void packet_flush(int fd)
{
packet_trace("0000", 4, 1);
- write_or_die(fd, "0000", 4);
+ 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 error(_("flush packet write failed"));
return 0;
}
strbuf_add(buf, "0000", 4);
}
-static void set_packet_header(char *buf, const int size)
+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";
#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;
if (n > LARGE_PACKET_MAX)
- die("protocol error: impossibly long line");
+ 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,
+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);
- die_errno("packet write with format failed");
+ die_errno(_("packet write with format failed"));
}
- return error("packet write with format failed");
+ return error(_("packet write with format failed"));
}
return 0;
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);
}
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;
}
size_t packet_size;
if (size > sizeof(packet_write_buffer) - 4)
- return error("packet write failed - data exceeds max packet size");
+ 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 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");
+ 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);
+ 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];
ssize_t ret;
if (fd >= 0 && src_buf && *src_buf)
- die("BUG: multiple sources given to packet_read");
+ BUG("multiple sources given to packet_read");
/* Read up to "size" bytes from our source, whatever it is. */
if (src_buf && *src_buf) {
} else {
ret = read_in_full(fd, dst, size);
if (ret < 0)
- die_errno("read error");
+ die_errno(_("read error"));
}
/* And complain if we didn't get enough bytes to satisfy the read. */
if (options & PACKET_READ_GENTLE_ON_EOF)
return -1;
- die("The remote end hung up unexpectedly");
+ die(_("the remote end hung up unexpectedly"));
}
return ret;
}
-static int packet_length(const char *linelen)
+int packet_length(const char lenbuf_hex[4])
{
- int val = hex2chr(linelen);
- return (val < 0) ? val : (val << 8) | hex2chr(linelen + 2);
+ int val = hex2chr(lenbuf_hex);
+ return (val < 0) ? val : (val << 8) | hex2chr(lenbuf_hex + 2);
}
-int packet_read(int fd, char **src_buf, size_t *src_len,
- char *buffer, unsigned size, int options)
+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, ret;
+ int len;
char linelen[4];
- ret = get_packet_data(fd, src_buf, src_len, linelen, 4, options);
- if (ret < 0)
- return ret;
+ 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);
- if (!len) {
+
+ if (len < 0) {
+ die(_("protocol error: bad line length character: %.4s"), linelen);
+ } else if (!len) {
packet_trace("0000", 4, 0);
- return 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 (len >= size)
- die("protocol error: bad line length %d", len);
- ret = get_packet_data(fd, src_buf, src_len, buffer, len, options);
- if (ret < 0)
- return ret;
+ 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')
buffer[len] = 0;
packet_trace(buffer, len, 0);
- return len;
+
+ 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,
}
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";
+}
+
+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);
+}
projects / thirdparty / git.git / blobdiff