* Copyright (C) 1996-2001 Andrew Tridgell
* Copyright (C) 1996 Paul Mackerras
* Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
- * Copyright (C) 2003, 2004, 2005, 2006 Wayne Davison
+ * Copyright (C) 2003-2007 Wayne Davison
*
* This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
extern int am_daemon;
extern int am_sender;
extern int am_generator;
-extern int incremental;
+extern int inc_recurse;
extern int io_error;
extern int eol_nulls;
extern int flist_eof;
extern char *filesfrom_host;
extern struct stats stats;
extern struct file_list *cur_flist, *first_flist;
+#ifdef ICONV_OPTION
+extern iconv_t ic_send, ic_recv;
+#endif
const char phase_unknown[] = "unknown";
int ignore_timeout = 0;
int batch_fd = -1;
-int done_cnt = 0;
+int msgdone_cnt = 0;
/* Ignore an EOF error if non-zero. See whine_about_eof(). */
int kluge_around_eof = 0;
static int io_filesfrom_f_in = -1;
static int io_filesfrom_f_out = -1;
static char io_filesfrom_buf[2048];
+#ifdef ICONV_OPTION
+static char iconv_buf[sizeof io_filesfrom_buf / 2];
+#endif
static char *io_filesfrom_bp;
static char io_filesfrom_lastchar;
static int io_filesfrom_buflen;
static int active_filecnt = 0;
static OFF_T active_bytecnt = 0;
-static char int_byte_cnt[64] = {
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* (00 - 3F)/4 */
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* (40 - 7F)/4 */
- 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, /* (80 - BF)/4 */
- 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 8, 9, /* (C0 - FF)/4 */
+static char int_byte_extra[64] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* (00 - 3F)/4 */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* (40 - 7F)/4 */
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* (80 - BF)/4 */
+ 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 5, 6, /* (C0 - FF)/4 */
};
static void readfd(int fd, char *buffer, size_t N);
static void writefd_unbuffered(int fd, const char *buf, size_t len);
static void decrement_active_files(int ndx);
static void decrement_flist_in_progress(int ndx, int redo);
+static void mplex_write(int fd, enum msgcode code, const char *buf, size_t len, int convert);
struct flist_ndx_item {
struct flist_ndx_item *next;
struct msg_list_item {
struct msg_list_item *next;
- int len;
+ char convert;
char buf[1];
};
struct msg_list_item *head, *tail;
};
-static struct msg_list msg2genr, msg2sndr;
+static struct msg_list msg_queue;
static void flist_ndx_push(struct flist_ndx_list *lp, int ndx)
{
}
/* Add a message to the pending MSG_* list. */
-static void msg_list_add(struct msg_list *lst, int code, const char *buf, int len)
+static void msg_list_add(struct msg_list *lst, int code, const char *buf, int len, int convert)
{
struct msg_list_item *m;
int sz = len + 4 + sizeof m[0] - 1;
if (!(m = (struct msg_list_item *)new_array(char, sz)))
out_of_memory("msg_list_add");
m->next = NULL;
- m->len = len + 4;
+ m->convert = convert;
SIVAL(m->buf, 0, ((code+MPLEX_BASE)<<24) | len);
memcpy(m->buf + 4, buf, len);
if (lst->tail)
lst->tail = m;
}
+static void msg_flush(void)
+{
+ if (am_generator) {
+ while (msg_queue.head && io_multiplexing_out) {
+ struct msg_list_item *m = msg_queue.head;
+ int len = IVAL(m->buf, 0) & 0xFFFFFF;
+ int tag = *((uchar*)m->buf+3) - MPLEX_BASE;
+ if (!(msg_queue.head = m->next))
+ msg_queue.tail = NULL;
+ stats.total_written += len + 4;
+ defer_forwarding_messages++;
+ mplex_write(sock_f_out, tag, m->buf + 4, len, m->convert);
+ defer_forwarding_messages--;
+ free(m);
+ }
+ } else {
+ while (msg_queue.head) {
+ struct msg_list_item *m = msg_queue.head;
+ int len = IVAL(m->buf, 0) & 0xFFFFFF;
+ int tag = *((uchar*)m->buf+3) - MPLEX_BASE;
+ if (!(msg_queue.head = m->next))
+ msg_queue.tail = NULL;
+ defer_forwarding_messages++;
+ mplex_write(msg_fd_out, tag, m->buf + 4, len, m->convert);
+ defer_forwarding_messages--;
+ free(m);
+ }
+ }
+}
+
/* Read a message from the MSG_* fd and handle it. This is called either
* during the early stages of being a local sender (up through the sending
* of the file list) or when we're the generator (to fetch the messages
/* Temporarily disable msg_fd_in. This is needed to avoid looping back
* to this routine from writefd_unbuffered(). */
+ no_flush++;
msg_fd_in = -1;
defer_forwarding_messages++;
switch (tag) {
case MSG_DONE:
- if (len != 0 || !am_generator) {
+ if (len < 0 || len > 1 || !am_generator) {
invalid_msg:
rprintf(FERROR, "invalid message %d:%d [%s%s]\n",
tag, len, who_am_i(),
- incremental ? "/incremental" : "");
+ inc_recurse ? "/inc" : "");
exit_cleanup(RERR_STREAMIO);
}
- done_cnt++;
+ if (len) {
+ readfd(fd, buf, len);
+ stats.total_read = read_varlong(fd, 3);
+ }
+ msgdone_cnt++;
break;
case MSG_REDO:
if (len != 4 || !am_generator)
if (remove_source_files)
decrement_active_files(IVAL(buf,0));
flist_ndx_push(&redo_list, IVAL(buf,0));
- if (incremental)
+ if (inc_recurse)
decrement_flist_in_progress(IVAL(buf,0), 1);
break;
case MSG_FLIST:
- if (len != 4 || !am_generator || !incremental)
+ if (len != 4 || !am_generator || !inc_recurse)
goto invalid_msg;
readfd(fd, buf, 4);
/* Read extra file list from receiver. */
flist->parent_ndx = IVAL(buf,0);
break;
case MSG_FLIST_EOF:
- if (len != 0 || !am_generator || !incremental)
+ if (len != 0 || !am_generator || !inc_recurse)
goto invalid_msg;
flist_eof = 1;
break;
if (len >= (int)sizeof buf || !am_generator)
goto invalid_msg;
readfd(fd, buf, len);
- send_msg(MSG_DELETED, buf, len);
+ send_msg(MSG_DELETED, buf, len, 1);
break;
case MSG_SUCCESS:
if (len != 4 || !am_generator)
readfd(fd, buf, len);
if (remove_source_files) {
decrement_active_files(IVAL(buf,0));
- send_msg(MSG_SUCCESS, buf, len);
+ send_msg(MSG_SUCCESS, buf, len, 0);
}
if (preserve_hard_links)
flist_ndx_push(&hlink_list, IVAL(buf,0));
- if (incremental)
+ if (inc_recurse)
decrement_flist_in_progress(IVAL(buf,0), 0);
break;
case MSG_NO_SEND:
if (len != 4 || !am_generator)
goto invalid_msg;
readfd(fd, buf, len);
- if (incremental)
+ if (inc_recurse)
decrement_flist_in_progress(IVAL(buf,0), 0);
break;
case MSG_SOCKERR:
if (n >= sizeof buf)
n = sizeof buf - 1;
readfd(fd, buf, n);
- rwrite((enum logcode)tag, buf, n);
+ rwrite((enum logcode)tag, buf, n, !am_generator);
len -= n;
}
break;
exit_cleanup(RERR_STREAMIO);
}
- defer_forwarding_messages--;
+ no_flush--;
msg_fd_in = fd;
+ if (!--defer_forwarding_messages)
+ msg_flush();
}
/* This is used by the generator to limit how many file transfers can
{
/* TODO: tune these limits? */
while (active_filecnt >= (active_bytecnt >= 128*1024 ? 10 : 50)) {
-#ifdef SUPPORT_HARD_LINKS
- if (hlink_list.head)
- check_for_finished_hlinks(itemizing, code);
-#endif
- read_msg_fd();
+ check_for_finished_files(itemizing, code, 0);
+ if (iobuf_out_cnt)
+ io_flush(NORMAL_FLUSH);
+ else
+ read_msg_fd();
}
active_filecnt++;
- active_bytecnt += F_LENGTH(cur_flist->files[ndx]);
+ active_bytecnt += F_LENGTH(cur_flist->files[ndx - cur_flist->ndx_start]);
}
static void decrement_active_files(int ndx)
flist->to_redo++;
}
-/* Try to push messages off the list onto the wire. If we leave with more
- * to do, return 0. On error, return -1. If everything flushed, return 1.
- * This is only active in the receiver. */
-static int msg2genr_flush(void)
+/* Write an message to a multiplexed stream. If this fails, rsync exits. */
+static void mplex_write(int fd, enum msgcode code, const char *buf, size_t len, int convert)
{
- if (msg_fd_out < 0 || no_flush || flist_forward_from >= 0)
- return -1;
+ char buffer[BIGPATHBUFLEN]; /* Oversized for use by iconv code. */
+ size_t n = len;
- no_flush++;
- while (msg2genr.head) {
- struct msg_list_item *m = msg2genr.head;
- writefd(msg_fd_out, m->buf, m->len);
- msg2genr.head = m->next;
- if (!msg2genr.head)
- msg2genr.tail = NULL;
- free(m);
- }
- if (iobuf_out_cnt) {
- writefd_unbuffered(iobuf_f_out, iobuf_out, iobuf_out_cnt);
- iobuf_out_cnt = 0;
+ SIVAL(buffer, 0, ((MPLEX_BASE + (int)code)<<24) + len);
+
+#ifdef ICONV_OPTION
+ if (convert && ic_send == (iconv_t)-1)
+#endif
+ convert = 0;
+
+ if (convert || n > 1024 - 4) /* BIGPATHBUFLEN can handle 1024 bytes */
+ n = 0;
+ else
+ memcpy(buffer + 4, buf, n);
+
+ writefd_unbuffered(fd, buffer, n+4);
+
+ len -= n;
+ buf += n;
+
+#ifdef ICONV_OPTION
+ if (convert) {
+ iconv(ic_send, NULL, 0, NULL, 0);
+ defer_forwarding_messages++;
+ while (len) {
+ ICONV_CONST char *ibuf = (ICONV_CONST char *)buf;
+ char *obuf = buffer;
+ size_t ocnt = sizeof buffer;
+ while (len && iconv(ic_send, &ibuf,&len,
+ &obuf,&ocnt) == (size_t)-1) {
+ if (errno == E2BIG || !ocnt)
+ break;
+ *obuf++ = *ibuf++;
+ ocnt--, len--;
+ }
+ n = obuf - buffer;
+ writefd_unbuffered(fd, buffer, n);
+ }
+ if (!--defer_forwarding_messages)
+ msg_flush();
+ } else
+#endif
+ if (len) {
+ defer_forwarding_messages++;
+ writefd_unbuffered(fd, buf, len);
+ if (!--defer_forwarding_messages)
+ msg_flush();
}
- no_flush--;
- return 1;
}
-int send_msg(enum msgcode code, const char *buf, int len)
+int send_msg(enum msgcode code, const char *buf, int len, int convert)
{
if (msg_fd_out < 0) {
if (!defer_forwarding_messages)
- return io_multiplex_write(code, buf, len);
+ return io_multiplex_write(code, buf, len, convert);
if (!io_multiplexing_out)
return 0;
- msg_list_add(&msg2sndr, code, buf, len);
+ msg_list_add(&msg_queue, code, buf, len, convert);
return 1;
}
- msg_list_add(&msg2genr, code, buf, len);
- msg2genr_flush();
+ if (flist_forward_from >= 0)
+ msg_list_add(&msg_queue, code, buf, len, convert);
+ else
+ mplex_write(msg_fd_out, code, buf, len, convert);
return 1;
}
{
char numbuf[4];
SIVAL(numbuf, 0, num);
- send_msg(code, numbuf, 4);
+ send_msg(code, numbuf, 4, 0);
}
void wait_for_receiver(void)
{
- read_msg_fd();
+ if (iobuf_out_cnt)
+ io_flush(NORMAL_FLUSH);
+ else
+ read_msg_fd();
}
int get_redo_num(void)
FD_ZERO(&r_fds);
FD_ZERO(&w_fds);
FD_SET(fd, &r_fds);
- if (msg2genr.head) {
- FD_SET(msg_fd_out, &w_fds);
- if (msg_fd_out > maxfd)
- maxfd = msg_fd_out;
- }
if (io_filesfrom_f_out >= 0) {
int new_fd;
if (io_filesfrom_buflen == 0) {
count = select(maxfd + 1, &r_fds, &w_fds, NULL, &tv);
if (count <= 0) {
- if (errno == EBADF)
+ if (errno == EBADF) {
+ defer_forwarding_messages = 0;
exit_cleanup(RERR_SOCKETIO);
+ }
check_timeout();
continue;
}
- if (msg2genr.head && FD_ISSET(msg_fd_out, &w_fds))
- msg2genr_flush();
-
if (io_filesfrom_f_out >= 0) {
if (io_filesfrom_buflen) {
if (FD_ISSET(io_filesfrom_f_out, &w_fds)) {
return cnt;
}
-/**
- * Read a line into the "fname" buffer (which must be at least MAXPATHLEN
- * characters long).
- */
+/* Read a line into the "fname" buffer (which must be at least MAXPATHLEN
+ * characters long). */
int read_filesfrom_line(int fd, char *fname)
{
char ch, *s, *eob = fname + MAXPATHLEN - 1;
iobuf_f_out = -1;
}
-void maybe_flush_socket(void)
+void maybe_flush_socket(int important)
{
- if (iobuf_out && iobuf_out_cnt && time(NULL) - last_io_out >= 5)
+ if (iobuf_out && iobuf_out_cnt
+ && (important || time(NULL) - last_io_out >= 5))
io_flush(NORMAL_FLUSH);
}
if (protocol_version < 29)
return; /* there's nothing we can do */
if (protocol_version >= 30)
- send_msg(MSG_NOOP, "", 0);
+ send_msg(MSG_NOOP, "", 0, 0);
else {
write_int(sock_f_out, cur_flist->count);
write_shortint(sock_f_out, ITEM_IS_NEW);
case MSG_DELETED:
if (msg_bytes >= sizeof line)
goto overflow;
- read_loop(fd, line, msg_bytes);
+#ifdef ICONV_OPTION
+ if (ic_recv != (iconv_t)-1) {
+ ICONV_CONST char *ibuf;
+ char *obuf = line;
+ size_t icnt, ocnt = sizeof line - 1;
+ int add_null = 0;
+ iconv(ic_send, NULL, 0, NULL, 0);
+ while (msg_bytes) {
+ icnt = msg_bytes > sizeof iconv_buf
+ ? sizeof iconv_buf : msg_bytes;
+ read_loop(fd, iconv_buf, icnt);
+ if (!(msg_bytes -= icnt) && !iconv_buf[icnt-1])
+ icnt--, add_null = 1;
+ ibuf = (ICONV_CONST char *)iconv_buf;
+ if (iconv(ic_send, &ibuf,&icnt,
+ &obuf,&ocnt) == (size_t)-1)
+ goto overflow; // XXX
+ }
+ if (add_null)
+ *obuf++ = '\0';
+ msg_bytes = obuf - line;
+ } else
+#endif
+ read_loop(fd, line, msg_bytes);
/* A directory name was sent with the trailing null */
if (msg_bytes > 0 && !line[msg_bytes-1])
log_delete(line, S_IFDIR);
exit_cleanup(RERR_STREAMIO);
}
read_loop(fd, line, msg_bytes);
- rwrite((enum logcode)tag, line, msg_bytes);
+ rwrite((enum logcode)tag, line, msg_bytes, 1);
break;
default:
rprintf(FERROR, "unexpected tag %d [%s]\n",
return num;
}
-int64 read_longint(int f)
+int32 read_varint(int f)
{
- int64 num;
- char b[9];
+ union {
+ char b[5];
+ int32 x;
+ } u;
+ uchar ch;
+ int extra;
- if (protocol_version < 30) {
- num = read_int(f);
+ u.x = 0;
+ readfd(f, (char*)&ch, 1);
+ extra = int_byte_extra[ch / 4];
+ if (extra) {
+ uchar bit = ((uchar)1<<(8-extra));
+ if (extra >= (int)sizeof u.b) {
+ rprintf(FERROR, "Overflow in read_varint()\n");
+ exit_cleanup(RERR_STREAMIO);
+ }
+ readfd(f, u.b, extra);
+ u.b[extra] = ch & (bit-1);
+ } else
+ u.b[0] = ch;
+#if CAREFUL_ALIGNMENT
+ u.x = IVAL(u.b,0);
+#endif
+#if SIZEOF_INT32 > 4
+ if (u.x & (int32)0x80000000)
+ u.x |= ~(int32)0xffffffff;
+#endif
+ return u.x;
+}
- if ((int32)num != (int32)0xffffffff)
- return num;
+int64 read_varlong(int f, uchar min_bytes)
+{
+ union {
+ char b[9];
+ int64 x;
+ } u;
+ char b2[8];
+ int extra;
#if SIZEOF_INT64 < 8
- rprintf(FERROR, "Integer overflow: attempted 64-bit offset\n");
- exit_cleanup(RERR_UNSUPPORTED);
+ memset(u.b, 0, 8);
#else
- readfd(f, b, 8);
- num = IVAL(b,0) | (((int64)IVAL(b,4))<<32);
+ u.x = 0;
#endif
- } else {
- int cnt;
- readfd(f, b, 3);
- cnt = int_byte_cnt[CVAL(b, 0) / 4];
+ readfd(f, b2, min_bytes);
+ memcpy(u.b, b2+1, min_bytes-1);
+ extra = int_byte_extra[CVAL(b2, 0) / 4];
+ if (extra) {
+ uchar bit = ((uchar)1<<(8-extra));
+ if (min_bytes + extra > (int)sizeof u.b) {
+ rprintf(FERROR, "Overflow in read_varlong()\n");
+ exit_cleanup(RERR_STREAMIO);
+ }
+ readfd(f, u.b + min_bytes - 1, extra);
+ u.b[min_bytes + extra - 1] = CVAL(b2, 0) & (bit-1);
#if SIZEOF_INT64 < 8
- if (cnt > 5 || (cnt == 5 && (CVAL(b,0)&0x3F || CVAL(b,1)&0x80))) {
+ if (min_bytes + extra > 5 || u.b[4] || CVAL(u.b,3) & 0x80) {
rprintf(FERROR, "Integer overflow: attempted 64-bit offset\n");
exit_cleanup(RERR_UNSUPPORTED);
}
#endif
- if (cnt > 3)
- readfd(f, b + 3, cnt - 3);
- switch (cnt) {
- case 3:
- num = NVAL3(b, 0);
- break;
- case 4:
- num = NVAL4(b, 0x80);
- break;
- case 5:
- num = NVAL5(b, 0xC0);
- break;
+ } else
+ u.b[min_bytes + extra - 1] = CVAL(b2, 0);
+#if SIZEOF_INT64 < 8
+ u.x = IVAL(u.b,0);
+#elif CAREFUL_ALIGNMENT
+ u.x = IVAL(u.b,0) | (((int64)IVAL(u.b,4))<<32);
+#endif
+ return u.x;
+}
+
+int64 read_longint(int f)
+{
#if SIZEOF_INT64 >= 8
- case 6:
- num = NVAL6(b, 0xE0);
- break;
- case 7:
- num = NVAL7(b, 0xF0);
- break;
- case 8:
- num = NVAL8(b, 0xF8);
- break;
- case 9:
- num = NVAL8(b+1, 0);
- break;
+ char b[9];
#endif
- default:
- exit_cleanup(RERR_PROTOCOL); /* impossible... */
- }
- }
+ int32 num = read_int(f);
- return num;
+ if (num != (int32)0xffffffff)
+ return num;
+
+#if SIZEOF_INT64 < 8
+ rprintf(FERROR, "Integer overflow: attempted 64-bit offset\n");
+ exit_cleanup(RERR_UNSUPPORTED);
+#else
+ readfd(f, b, 8);
+ return IVAL(b,0) | (((int64)IVAL(b,4))<<32);
+#endif
}
void read_buf(int f, char *buf, size_t len)
exit_cleanup(RERR_PROTOCOL);
}
sum->s2length = protocol_version < 27 ? csum_length : (int)read_int(f);
- if (sum->s2length < 0 || sum->s2length > MD4_SUM_LENGTH) {
+ if (sum->s2length < 0 || sum->s2length > MAX_DIGEST_LEN) {
rprintf(FERROR, "Invalid checksum length %d [%s]\n",
sum->s2length, who_am_i());
exit_cleanup(RERR_PROTOCOL);
size_t n, total = 0;
fd_set w_fds, r_fds, e_fds;
int maxfd, count, cnt, using_r_fds;
- int defer_save = defer_forwarding_messages;
+ int defer_inc = 0;
struct timeval tv;
- no_flush++;
+ if (no_flush++)
+ defer_forwarding_messages++, defer_inc++;
while (total < len) {
FD_ZERO(&w_fds);
/* Don't try to write errors back across the stream. */
if (fd == sock_f_out)
io_end_multiplex_out();
+ /* Don't try to write errors down a failing msg pipe. */
+ if (am_server && fd == msg_fd_out)
+ exit_cleanup(RERR_STREAMIO);
rsyserr(FERROR, errno,
"writefd_unbuffered failed to write %ld bytes [%s]",
(long)len, who_am_i());
}
total += cnt;
- defer_forwarding_messages = 1;
+ defer_forwarding_messages++, defer_inc++;
if (fd == sock_f_out) {
if (io_timeout || am_generator)
}
}
- defer_forwarding_messages = defer_save;
no_flush--;
-}
-
-static void msg2sndr_flush(void)
-{
- if (defer_forwarding_messages)
- return;
-
- while (msg2sndr.head && io_multiplexing_out) {
- struct msg_list_item *m = msg2sndr.head;
- if (!(msg2sndr.head = m->next))
- msg2sndr.tail = NULL;
- stats.total_written += m->len;
- defer_forwarding_messages = 1;
- writefd_unbuffered(sock_f_out, m->buf, m->len);
- defer_forwarding_messages = 0;
- free(m);
- }
-}
-
-/**
- * Write an message to a multiplexed stream. If this fails then rsync
- * exits.
- **/
-static void mplex_write(enum msgcode code, const char *buf, size_t len)
-{
- char buffer[1024];
- size_t n = len;
-
- SIVAL(buffer, 0, ((MPLEX_BASE + (int)code)<<24) + len);
-
- if (n > sizeof buffer - 4)
- n = 0;
- else
- memcpy(buffer + 4, buf, n);
-
- writefd_unbuffered(sock_f_out, buffer, n+4);
-
- len -= n;
- buf += n;
-
- if (len) {
- defer_forwarding_messages = 1;
- writefd_unbuffered(sock_f_out, buf, len);
- defer_forwarding_messages = 0;
- msg2sndr_flush();
- }
+ if (!(defer_forwarding_messages -= defer_inc))
+ msg_flush();
}
void io_flush(int flush_it_all)
{
- if (flush_it_all) {
- msg2genr_flush();
- msg2sndr_flush();
- }
-
if (!iobuf_out_cnt || no_flush)
return;
if (io_multiplexing_out)
- mplex_write(MSG_DATA, iobuf_out, iobuf_out_cnt);
+ mplex_write(sock_f_out, MSG_DATA, iobuf_out, iobuf_out_cnt, 0);
else
writefd_unbuffered(iobuf_f_out, iobuf_out, iobuf_out_cnt);
iobuf_out_cnt = 0;
+
+ if (flush_it_all && !defer_forwarding_messages)
+ msg_flush();
}
static void writefd(int fd, const char *buf, size_t len)
writefd(f, b, 4);
}
-/*
- * Note: int64 may actually be a 32-bit type if ./configure couldn't find any
- * 64-bit types on this platform.
- */
-void write_longint(int f, int64 x)
+void write_varint(int f, int32 x)
{
- char b[12];
+ char b[5];
+ uchar bit;
+ int cnt = 4;
-#if SIZEOF_INT64 < 8
- if (x < 0 || x > 0x7FFFFFFF) {
+ SIVAL(b, 1, x);
+
+ while (cnt > 1 && b[cnt] == 0)
+ cnt--;
+ bit = ((uchar)1<<(7-cnt+1));
+ if (CVAL(b, cnt) >= bit) {
+ cnt++;
+ *b = ~(bit-1);
+ } else if (cnt > 1)
+ *b = b[cnt] | ~(bit*2-1);
+ else
+ *b = b[cnt];
+
+ writefd(f, b, cnt);
+}
+
+void write_varlong(int f, int64 x, uchar min_bytes)
+{
+ char b[9];
+ uchar bit;
+ int cnt = 8;
+
+ SIVAL(b, 1, x);
+#if SIZEOF_INT64 >= 8
+ SIVAL(b, 5, x >> 32);
+#else
+ if (x <= 0x7FFFFFFF && x >= 0)
+ memset(b + 5, 0, 4);
+ else {
rprintf(FERROR, "Integer overflow: attempted 64-bit offset\n");
exit_cleanup(RERR_UNSUPPORTED);
}
#endif
- if (protocol_version < 30) {
- char * const s = b+4;
- SIVAL(s, 0, x);
-#if SIZEOF_INT64 < 8
+ while (cnt > min_bytes && b[cnt] == 0)
+ cnt--;
+ bit = ((uchar)1<<(7-cnt+min_bytes));
+ if (CVAL(b, cnt) >= bit) {
+ cnt++;
+ *b = ~(bit-1);
+ } else if (cnt > min_bytes)
+ *b = b[cnt] | ~(bit*2-1);
+ else
+ *b = b[cnt];
+
+ writefd(f, b, cnt);
+}
+
+/*
+ * Note: int64 may actually be a 32-bit type if ./configure couldn't find any
+ * 64-bit types on this platform.
+ */
+void write_longint(int f, int64 x)
+{
+ char b[12], * const s = b+4;
+
+ SIVAL(s, 0, x);
+ if (x <= 0x7FFFFFFF && x >= 0) {
writefd(f, s, 4);
-#else
- if (x <= 0x7FFFFFFF && x >= 0) {
- writefd(f, s, 4);
- return;
- }
+ return;
+ }
- memset(b, 0xFF, 4);
- SIVAL(s, 4, x >> 32);
- writefd(f, b, 12);
- } else if (x < 0) {
- goto all_bits;
-#endif
- } else if (x < ((int32)1<<(3*8-1))) {
- b[0] = (char)(x >> 16);
- b[1] = (char)(x >> 8);
- b[2] = (char)x;
- writefd(f, b, 3);
- } else if (x < ((int64)1<<(4*8-2))) {
- b[0] = (char)((x >> 24) | 0x80);
- b[1] = (char)(x >> 16);
- b[2] = (char)(x >> 8);
- b[3] = (char)x;
- writefd(f, b, 4);
#if SIZEOF_INT64 < 8
- } else {
- b[0] = 0xC0;
- b[1] = (char)(x >> 24);
- b[2] = (char)(x >> 16);
- b[3] = (char)(x >> 8);
- b[4] = (char)x;
- writefd(f, b, 5);
- }
+ rprintf(FERROR, "Integer overflow: attempted 64-bit offset\n");
+ exit_cleanup(RERR_UNSUPPORTED);
#else
- } else if (x < ((int64)1<<(5*8-3))) {
- b[0] = (char)((x >> 32) | 0xC0);
- b[1] = (char)(x >> 24);
- b[2] = (char)(x >> 16);
- b[3] = (char)(x >> 8);
- b[4] = (char)x;
- writefd(f, b, 5);
- } else if (x < ((int64)1<<(6*8-4))) {
- b[0] = (char)((x >> 40) | 0xE0);
- b[1] = (char)(x >> 32);
- b[2] = (char)(x >> 24);
- b[3] = (char)(x >> 16);
- b[4] = (char)(x >> 8);
- b[5] = (char)x;
- writefd(f, b, 6);
- } else if (x < ((int64)1<<(7*8-5))) {
- b[0] = (char)((x >> 48) | 0xF0);
- b[1] = (char)(x >> 40);
- b[2] = (char)(x >> 32);
- b[3] = (char)(x >> 24);
- b[4] = (char)(x >> 16);
- b[5] = (char)(x >> 8);
- b[6] = (char)x;
- writefd(f, b, 7);
- } else if (x < ((int64)1<<(8*8-6))) {
- b[0] = (char)((x >> 56) | 0xF8);
- b[1] = (char)(x >> 48);
- b[2] = (char)(x >> 40);
- b[3] = (char)(x >> 32);
- b[4] = (char)(x >> 24);
- b[5] = (char)(x >> 16);
- b[6] = (char)(x >> 8);
- b[7] = (char)x;
- writefd(f, b, 8);
- } else {
- all_bits:
- b[0] = (char)0xFC;
- b[1] = (char)(x >> 56);
- b[2] = (char)(x >> 48);
- b[3] = (char)(x >> 40);
- b[4] = (char)(x >> 32);
- b[5] = (char)(x >> 24);
- b[6] = (char)(x >> 16);
- b[7] = (char)(x >> 8);
- b[8] = (char)x;
- writefd(f, b, 9);
- }
+ memset(b, 0xFF, 4);
+ SIVAL(s, 4, x >> 32);
+ writefd(f, b, 12);
#endif
}
else if (diff < 0 || diff > 0x7FFF) {
b[cnt++] = (char)0xFE;
b[cnt++] = (char)((ndx >> 24) | 0x80);
- b[cnt++] = (char)(ndx >> 16);
- b[cnt++] = (char)(ndx >> 8);
b[cnt++] = (char)ndx;
+ b[cnt++] = (char)(ndx >> 8);
+ b[cnt++] = (char)(ndx >> 16);
} else {
b[cnt++] = (char)0xFE;
b[cnt++] = (char)(diff >> 8);
if (CVAL(b, 0) == 0xFE) {
readfd(f, b, 2);
if (CVAL(b, 0) & 0x80) {
- readfd(f, b+2, 2);
- num = NVAL4(b, 0x80);
+ b[3] = CVAL(b, 0) & ~0x80;
+ b[0] = b[1];
+ readfd(f, b+1, 2);
+ num = IVAL(b, 0);
} else
- num = NVAL2(b, 0) + *prev_ptr;
+ num = (UVAL(b,0)<<8) + UVAL(b,1) + *prev_ptr;
} else
- num = CVAL(b, 0) + *prev_ptr;
+ num = UVAL(b, 0) + *prev_ptr;
*prev_ptr = num;
if (prev_ptr == &prev_negative)
num = -num;
}
/** Write an message to the multiplexed data stream. */
-int io_multiplex_write(enum msgcode code, const char *buf, size_t len)
+int io_multiplex_write(enum msgcode code, const char *buf, size_t len, int convert)
{
if (!io_multiplexing_out)
return 0;
io_flush(NORMAL_FLUSH);
stats.total_written += (len+4);
- mplex_write(code, buf, len);
+ mplex_write(sock_f_out, code, buf, len, convert);
return 1;
}