extern int preserve_hard_links;
extern int preserve_devices;
extern int preserve_specials;
+extern int delete_during;
extern int uid_ndx;
extern int gid_ndx;
extern int eol_nulls;
extern int protocol_version;
extern int sanitize_paths;
extern int munge_symlinks;
+extern int use_safe_inc_flist;
extern int need_unsorted_flist;
extern int sender_symlink_iconv;
extern int unsort_ndx;
* will survive just long enough to be used by send_file_entry(). */
static dev_t tmp_rdev;
#ifdef SUPPORT_HARD_LINKS
-static int64 tmp_dev, tmp_ino;
+static int64 tmp_dev = -1, tmp_ino;
#endif
static char tmp_sum[MAX_DIGEST_LEN];
modtime = file->modtime;
#ifdef SUPPORT_HARD_LINKS
- if (tmp_dev != 0) {
+ if (tmp_dev != -1) {
if (protocol_version >= 30) {
struct ht_int64_node *np = idev_find(tmp_dev, tmp_ino);
first_hlink_ndx = (int32)(long)np->data - 1;
#endif
#ifdef SUPPORT_HARD_LINKS
- if (tmp_dev != 0 && protocol_version < 30) {
+ if (tmp_dev != -1 && protocol_version < 30) {
+ /* Older protocols expect the dev number to be transmitted
+ * 1-incremented so that it is never zero. */
if (protocol_version < 26) {
/* 32-bit dev_t and ino_t */
- write_int(f, (int32)dev);
+ write_int(f, (int32)(dev+1));
write_int(f, (int32)tmp_ino);
} else {
/* 64-bit dev_t and ino_t */
if (!(xflags & XMIT_SAME_DEV_pre30))
- write_longint(f, dev);
+ write_longint(f, dev+1);
write_longint(f, tmp_ino);
}
}
if (protocol_version >= 28
? (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
: S_ISREG(st.st_mode)) {
- tmp_dev = (int64)st.st_dev + 1;
+ tmp_dev = (int64)st.st_dev;
tmp_ino = (int64)st.st_ino;
} else
- tmp_dev = 0;
+ tmp_dev = -1;
}
#endif
unsigned int len = strlen(fbuf);
if (len > 1 && fbuf[len-1] == '/')
fbuf[--len] = '\0';
- if (len >= MAXPATHLEN - 1) {
- io_error |= IOERR_GENERAL;
- rprintf(FERROR_XFER, "skipping long-named directory: %s\n",
- full_fname(fbuf));
- return;
- }
save_filters = push_local_filters(fbuf, len);
send_directory(f, flist, fbuf, len, flags);
pop_local_filters(save_filters);
}
p = fbuf + len;
- if (len != 1 || *fbuf != '/')
+ if (len == 1 && *fbuf == '/')
+ remainder = MAXPATHLEN - 1;
+ else if (len < MAXPATHLEN-1) {
*p++ = '/';
- *p = '\0';
- remainder = MAXPATHLEN - (p - fbuf);
+ *p = '\0';
+ remainder = MAXPATHLEN - (len + 1);
+ } else
+ remainder = 0;
for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
char *dname = d_name(di);
if (dname[0] == '.' && (dname[1] == '\0'
|| (dname[1] == '.' && dname[2] == '\0')))
continue;
- if (strlcpy(p, dname, remainder) >= remainder) {
+ unsigned name_len = strlcpy(p, dname, remainder);
+ if (name_len >= remainder) {
+ char save = fbuf[len];
+ fbuf[len] = '\0';
io_error |= IOERR_GENERAL;
rprintf(FERROR_XFER,
- "cannot send long-named file %s\n",
- full_fname(fbuf));
+ "filename overflows max-path len by %u: %s/%s\n",
+ name_len - remainder + 1, fbuf, dname);
+ fbuf[len] = save;
continue;
}
if (dname[0] == '\0') {
filter_list = save_filter_list;
}
+static NORETURN void fatal_unsafe_io_error(void)
+{
+ /* This (sadly) can only happen when pushing data because
+ * the sender does not know about what kind of delete
+ * is in effect on the receiving side when pulling. */
+ rprintf(FERROR_XFER, "FATAL I/O ERROR: dying to avoid a --delete-during issue with a pre-3.0.7 receiver.\n");
+ exit_cleanup(RERR_UNSUPPORTED);
+}
+
static void send1extra(int f, struct file_struct *file, struct file_list *flist)
{
char fbuf[MAXPATHLEN];
dp = F_DIR_NODE_P(file);
}
- write_byte(f, 0);
+ if (io_error == save_io_error || ignore_errors)
+ write_byte(f, 0);
+ else if (use_safe_inc_flist) {
+ write_shortint(f, XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST);
+ write_varint(f, io_error);
+ } else {
+ if (delete_during)
+ fatal_unsafe_io_error();
+ write_byte(f, 0);
+ }
if (need_unsorted_flist) {
if (!(flist->sorted = new_array(struct file_struct *, flist->used)))
stats.flist_buildtime = 1;
start_tv = end_tv;
- write_byte(f, 0); /* Indicate end of file list */
+ /* Indicate end of file list */
+ if (io_error == 0 || ignore_errors)
+ write_byte(f, 0);
+ else if (use_safe_inc_flist) {
+ write_shortint(f, XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST);
+ write_varint(f, io_error);
+ } else {
+ if (delete_during && inc_recurse)
+ fatal_unsafe_io_error();
+ write_byte(f, 0);
+ }
#ifdef SUPPORT_HARD_LINKS
if (preserve_hard_links && protocol_version >= 30 && !inc_recurse)
/* send the io_error flag */
if (protocol_version < 30)
write_int(f, ignore_errors ? 0 : io_error);
- else if (io_error && !ignore_errors)
+ else if (!use_safe_inc_flist && io_error && !ignore_errors)
send_msg_int(MSG_IO_ERROR, io_error);
if (disable_buffering)
while ((flags = read_byte(f)) != 0) {
struct file_struct *file;
- flist_expand(flist, 1);
-
if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
flags |= read_byte(f) << 8;
+
+ if (flags == (XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST)) {
+ int err;
+ if (!use_safe_inc_flist) {
+ rprintf(FERROR, "Invalid flist flag: %x\n", flags);
+ exit_cleanup(RERR_PROTOCOL);
+ }
+ err = read_varint(f);
+ if (!ignore_errors)
+ io_error |= err;
+ break;
+ }
+
+ flist_expand(flist, 1);
file = recv_file_entry(flist, flags, f);
if (inc_recurse && S_ISDIR(file->mode)) {
git.samba.org / rsync.git / blobdiff