mirror of
https://github.com/RsyncProject/rsync.git
synced 2026-10-27 08:08:17 -04:00
Massive rewrite to replace the file-list read/write code with calls to
send_file_entry() and receive_file_entry(). Other cleanups too.
This commit is contained in:
Wayne Davison committed
1 parent
7b1a0c19b8
commit
e8d3168e3a
1 file changed
+98
-320
@@ -9,6 +9,9 @@
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#include <time.h>
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extern char *batch_prefix;
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extern int csum_length;
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extern int protocol_version;
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extern struct stats stats;
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struct file_list *batch_flist;
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@@ -17,105 +20,46 @@ static char rsync_csums_file[] = ".rsync_csums";
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static char rsync_delta_file[] = ".rsync_delta";
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static char rsync_argvs_file[] = ".rsync_argvs";
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static int fdb;
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static int fdb_delta;
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static int fdb_open;
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static int fdb_close;
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static int f_csums = -1;
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static int f_delta = -1;
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void write_batch_flist_file(char *buff, int bytes_to_write)
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void write_batch_flist_info(int flist_count, struct file_struct **files)
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{
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char filename[MAXPATHLEN];
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int i, f, save_pv;
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int64 save_written;
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if (fdb_open) {
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/* Set up file extension */
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strlcpy(filename, batch_prefix, sizeof(filename));
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strlcat(filename, rsync_flist_file, sizeof(filename));
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snprintf(filename, sizeof filename, "%s%s",
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batch_prefix, rsync_flist_file);
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/*
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* Open batch flist file for writing;
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* create it if it doesn't exist
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*/
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fdb = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC,
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S_IREAD | S_IWRITE);
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if (fdb == -1) {
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rprintf(FERROR, "Batch file %s open error: %s\n",
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filename, strerror(errno));
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close(fdb);
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exit_cleanup(1);
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}
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fdb_open = 0;
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}
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/* Write buffer to batch flist file */
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if (write(fdb, buff, bytes_to_write) == -1) {
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rprintf(FERROR, "Batch file %s write error: %s\n",
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f = do_open(filename, O_WRONLY|O_CREAT|O_TRUNC, S_IREAD|S_IWRITE);
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if (f < 0) {
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rprintf(FERROR, "Batch file %s open error: %s\n",
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filename, strerror(errno));
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close(fdb);
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exit_cleanup(1);
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}
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if (fdb_close) {
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close(fdb);
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}
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save_written = stats.total_written;
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save_pv = protocol_version;
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protocol_version = PROTOCOL_VERSION;
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write_int(f, protocol_version);
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write_int(f, flist_count);
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reset_file_entry_vars();
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for (i = 0; i < flist_count; i++)
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send_file_entry(files[i], f, files[i]->flags & FLAG_DELETE);
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send_file_entry(NULL, f, 0);
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protocol_version = save_pv;
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stats.total_written = save_written;
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close(f);
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}
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/* TODO: Someone please rewrite this! Why in the world don't we use
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* the send/receive code from flist.c for this? */
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void write_batch_flist_info(int flist_count, struct file_struct **fptr)
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{
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int i;
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int bytes_to_write;
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/* Write flist info to batch file */
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bytes_to_write =
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sizeof(time_t) +
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sizeof(OFF_T) +
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sizeof(mode_t) +
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sizeof(INO64_T) +
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sizeof(DEV64_T) +
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sizeof(DEV64_T) +
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sizeof(uid_t) +
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sizeof(gid_t);
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fdb_open = 1;
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fdb_close = 0;
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for (i = 0; i < flist_count; i++) {
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write_batch_flist_file((char*)&fptr[i]->flags, sizeof fptr[0]->flags);
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write_batch_flist_file((char*)fptr[i], bytes_to_write);
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write_char_bufs(fptr[i]->basename);
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write_char_bufs(fptr[i]->dirname);
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write_char_bufs(fptr[i]->basedir);
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write_char_bufs(fptr[i]->link);
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if (i == flist_count - 1) {
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fdb_close = 1;
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}
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write_char_bufs(fptr[i]->sum);
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}
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}
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void write_char_bufs(char *buf)
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{
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/* Write the size of the string which will follow */
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char b[4];
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SIVAL(b, 0, buf != NULL ? strlen(buf) : 0);
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write_batch_flist_file(b, sizeof(int));
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/* Write the string if there is one */
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if (buf != NULL) {
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write_batch_flist_file(buf, strlen(buf));
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}
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}
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void write_batch_argvs_file(int argc, char *argv[])
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{
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int fdb;
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int f;
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int i;
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char buff[256]; /* XXX */
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char buff2[MAXPATHLEN + 6];
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@@ -125,16 +69,13 @@ void write_batch_argvs_file(int argc, char *argv[])
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strlcpy(filename, batch_prefix, sizeof(filename));
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strlcat(filename, rsync_argvs_file, sizeof(filename));
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/*
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* Open batch argvs file for writing;
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* create it if it doesn't exist
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*/
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fdb = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC,
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S_IREAD | S_IWRITE | S_IEXEC);
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if (fdb == -1) {
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/* Open batch argvs file for writing;
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* create it if it doesn't exist. */
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f = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC,
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S_IREAD | S_IWRITE | S_IEXEC);
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if (f < 0) {
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rprintf(FERROR, "Batch file %s open error: %s\n",
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filename, strerror(errno));
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close(fdb);
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exit_cleanup(1);
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}
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buff[0] = '\0';
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@@ -171,220 +112,89 @@ void write_batch_argvs_file(int argc, char *argv[])
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}
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}
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strlcat(buff, "\n", sizeof(buff));
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if (!write(fdb, buff, strlen(buff))) {
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if (!write(f, buff, strlen(buff))) {
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rprintf(FERROR, "Batch file %s write error: %s\n",
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filename, strerror(errno));
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close(fdb);
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close(f);
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exit_cleanup(1);
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}
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close(fdb);
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close(f);
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}
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struct file_list *create_flist_from_batch(void)
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{
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char filename[MAXPATHLEN];
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unsigned short flags;
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int i, f, save_pv;
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int64 save_read;
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fdb_open = 1;
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fdb_close = 0;
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snprintf(filename, sizeof filename, "%s%s",
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batch_prefix, rsync_flist_file);
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f = do_open(filename, O_RDONLY, 0);
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if (f < 0) {
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rprintf(FERROR, "Batch file %s open error: %s\n",
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filename, strerror(errno));
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exit_cleanup(1);
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}
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batch_flist = new(struct file_list);
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if (!batch_flist) {
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if (!batch_flist)
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out_of_memory("create_flist_from_batch");
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}
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batch_flist->count = 0;
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batch_flist->malloced = 1000;
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save_read = stats.total_read;
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save_pv = protocol_version;
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protocol_version = read_int(f);
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batch_flist->count = batch_flist->malloced = read_int(f);
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batch_flist->files = new_array(struct file_struct *,
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batch_flist->malloced);
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if (!batch_flist->files) {
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if (!batch_flist->files)
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out_of_memory("create_flist_from_batch");
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for (i = 0; (flags = read_byte(f)) != 0; i++) {
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if (protocol_version >= 28 && (flags & EXTENDED_FLAGS))
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flags |= read_byte(f) << 8;
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receive_file_entry(&batch_flist->files[i], flags, f);
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}
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reset_file_entry_vars();
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for (flags = read_batch_flags(); flags; flags = read_batch_flags()) {
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int i = batch_flist->count;
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if (i >= batch_flist->malloced) {
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if (batch_flist->malloced < 1000)
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batch_flist->malloced += 1000;
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else
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batch_flist->malloced *= 2;
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batch_flist->files
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= realloc_array(batch_flist->files,
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struct file_struct *,
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batch_flist->malloced);
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if (!batch_flist->files)
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out_of_memory("create_flist_from_batch");
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}
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read_batch_flist_info(&batch_flist->files[i]);
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batch_flist->files[i]->flags = flags;
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batch_flist->count++;
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}
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protocol_version = save_pv;
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stats.total_read = save_read;
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return batch_flist;
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}
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int read_batch_flist_file(char *buff, int len)
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{
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int bytes_read;
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char filename[MAXPATHLEN];
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if (fdb_open) {
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/* Set up file extension */
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strlcpy(filename, batch_prefix, sizeof(filename));
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strlcat(filename, rsync_flist_file, sizeof(filename));
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/* Open batch flist file for reading */
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fdb = do_open(filename, O_RDONLY, 0);
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if (fdb == -1) {
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rprintf(FERROR, "Batch file %s open error: %s\n",
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filename, strerror(errno));
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close(fdb);
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exit_cleanup(1);
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}
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fdb_open = 0;
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}
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/* Read flist batch file */
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switch (bytes_read = read(fdb, buff, len)) {
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case -1:
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rprintf(FERROR, "Batch file %s read error: %s\n",
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filename, strerror(errno));
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close(fdb);
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exit_cleanup(1);
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break;
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case 0: /* EOF */
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close(fdb);
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}
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return bytes_read;
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}
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unsigned short read_batch_flags(void)
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{
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unsigned short flags;
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if (read_batch_flist_file((char*)&flags, sizeof flags))
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return 1;
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return 0;
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}
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void read_batch_flist_info(struct file_struct **fptr)
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{
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int int_str_len;
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char char_str_len[4];
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char buff[256];
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struct file_struct *file;
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file = new(struct file_struct);
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if (!file)
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out_of_memory("read_batch_flist_info");
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memset((char *) file, 0, sizeof(*file));
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*fptr = file;
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/*
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* Keep these in sync with bytes_to_write assignment
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* in write_batch_flist_info()
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*/
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read_batch_flist_file((char *) &file->modtime, sizeof(time_t));
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read_batch_flist_file((char *) &file->length, sizeof(OFF_T));
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read_batch_flist_file((char *) &file->mode, sizeof(mode_t));
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read_batch_flist_file((char *) &file->inode, sizeof(INO64_T));
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read_batch_flist_file((char *) &file->dev, sizeof(DEV64_T));
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read_batch_flist_file((char *) &file->rdev, sizeof(DEV64_T));
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read_batch_flist_file((char *) &file->uid, sizeof(uid_t));
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read_batch_flist_file((char *) &file->gid, sizeof(gid_t));
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read_batch_flist_file(char_str_len, sizeof(char_str_len));
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int_str_len = IVAL(char_str_len, 0);
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if (int_str_len > 0) {
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read_batch_flist_file(buff, int_str_len);
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buff[int_str_len] = '\0';
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file->basename = strdup(buff);
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} else {
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file->basename = NULL;
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}
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read_batch_flist_file(char_str_len, sizeof(char_str_len));
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int_str_len = IVAL(char_str_len, 0);
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if (int_str_len > 0) {
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read_batch_flist_file(buff, int_str_len);
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buff[int_str_len] = '\0';
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file[0].dirname = strdup(buff);
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} else {
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file[0].dirname = NULL;
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}
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read_batch_flist_file(char_str_len, sizeof(char_str_len));
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int_str_len = IVAL(char_str_len, 0);
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if (int_str_len > 0) {
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read_batch_flist_file(buff, int_str_len);
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buff[int_str_len] = '\0';
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file[0].basedir = strdup(buff);
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} else {
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file[0].basedir = NULL;
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}
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read_batch_flist_file(char_str_len, sizeof(char_str_len));
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int_str_len = IVAL(char_str_len, 0);
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if (int_str_len > 0) {
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read_batch_flist_file(buff, int_str_len);
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buff[int_str_len] = '\0';
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file[0].link = strdup(buff);
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} else {
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file[0].link = NULL;
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}
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read_batch_flist_file(char_str_len, sizeof(char_str_len));
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int_str_len = IVAL(char_str_len, 0);
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if (int_str_len > 0) {
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read_batch_flist_file(buff, int_str_len);
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buff[int_str_len] = '\0';
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file[0].sum = strdup(buff);
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} else {
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file[0].sum = NULL;
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}
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}
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void write_batch_csums_file(void *buff, int bytes_to_write)
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{
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static int fdb_open = 1;
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char filename[MAXPATHLEN];
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if (fdb_open) {
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/* Set up file extension */
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if (f_csums < 0) {
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strlcpy(filename, batch_prefix, sizeof(filename));
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strlcat(filename, rsync_csums_file, sizeof(filename));
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/*
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* Open batch csums file for writing;
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* create it if it doesn't exist
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*/
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fdb = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC,
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S_IREAD | S_IWRITE);
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if (fdb == -1) {
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f_csums = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC,
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S_IREAD | S_IWRITE);
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if (f_csums < 0) {
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rprintf(FERROR, "Batch file %s open error: %s\n",
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filename, strerror(errno));
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close(fdb);
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close(f_csums);
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exit_cleanup(1);
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}
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fdb_open = 0;
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}
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/* Write buffer to batch csums file */
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if (write(fdb, buff, bytes_to_write) == -1) {
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if (write(f_csums, buff, bytes_to_write) < 0) {
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rprintf(FERROR, "Batch file %s write error: %s\n",
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filename, strerror(errno));
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close(fdb);
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close(f_csums);
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exit_cleanup(1);
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}
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}
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void close_batch_csums_file(void)
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{
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close(fdb);
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close(f_csums);
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f_csums = -1;
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}
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@@ -396,14 +206,10 @@ void close_batch_csums_file(void)
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* variable-length integer routines, which is probably a compatible
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* change.
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**/
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void write_batch_csum_info(int *flist_entry, int flist_count,
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struct sum_struct *s)
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void write_batch_csum_info(int *flist_entry, struct sum_struct *s)
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{
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size_t i;
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int int_count;
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extern int csum_length;
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fdb_open = 1;
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write_batch_csums_file(flist_entry, sizeof(int));
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int_count = s ? (int) s->count : 0;
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@@ -412,10 +218,6 @@ void write_batch_csum_info(int *flist_entry, int flist_count,
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if (s) {
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for (i = 0; i < s->count; i++) {
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write_batch_csums_file(&s->sums[i].sum1, sizeof(uint32));
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if ((*flist_entry == flist_count - 1)
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&& (i == s->count - 1)) {
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fdb_close = 1;
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}
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write_batch_csums_file(s->sums[i].sum2, csum_length);
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}
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}
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@@ -423,34 +225,27 @@ void write_batch_csum_info(int *flist_entry, int flist_count,
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int read_batch_csums_file(char *buff, int len)
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{
|
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static int fdb_open = 1;
|
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int bytes_read;
|
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char filename[MAXPATHLEN];
|
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|
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if (fdb_open) {
|
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/* Set up file extension */
|
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if (f_csums < 0) {
|
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strlcpy(filename, batch_prefix, sizeof(filename));
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strlcat(filename, rsync_csums_file, sizeof(filename));
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|
||||
/* Open batch flist file for reading */
|
||||
fdb = do_open(filename, O_RDONLY, 0);
|
||||
if (fdb == -1) {
|
||||
f_csums = do_open(filename, O_RDONLY, 0);
|
||||
if (f_csums < 0) {
|
||||
rprintf(FERROR, "Batch file %s open error: %s\n",
|
||||
filename, strerror(errno));
|
||||
close(fdb);
|
||||
close(f_csums);
|
||||
exit_cleanup(1);
|
||||
}
|
||||
fdb_open = 0;
|
||||
}
|
||||
|
||||
/* Read csums batch file */
|
||||
|
||||
bytes_read = read(fdb, buff, len);
|
||||
|
||||
if (bytes_read == -1) {
|
||||
bytes_read = read(f_csums, buff, len);
|
||||
if (bytes_read < 0) {
|
||||
rprintf(FERROR, "Batch file %s read error: %s\n",
|
||||
filename, strerror(errno));
|
||||
close(fdb);
|
||||
close(f_csums);
|
||||
exit_cleanup(1);
|
||||
}
|
||||
|
||||
@@ -465,13 +260,12 @@ void read_batch_csum_info(int flist_entry, struct sum_struct *s,
|
||||
int file_chunk_ct;
|
||||
uint32 file_sum1;
|
||||
char file_sum2[SUM_LENGTH];
|
||||
extern int csum_length;
|
||||
|
||||
read_batch_csums_file((char *) &file_flist_entry, sizeof(int));
|
||||
if (file_flist_entry != flist_entry) {
|
||||
rprintf(FINFO, "file_flist_entry (%d) != flist_entry (%d)\n",
|
||||
file_flist_entry, flist_entry);
|
||||
close(fdb);
|
||||
close(f_csums);
|
||||
exit_cleanup(1);
|
||||
|
||||
} else {
|
||||
@@ -495,74 +289,58 @@ void read_batch_csum_info(int flist_entry, struct sum_struct *s,
|
||||
|
||||
void write_batch_delta_file(char *buff, int bytes_to_write)
|
||||
{
|
||||
static int fdb_delta_open = 1;
|
||||
char filename[MAXPATHLEN];
|
||||
|
||||
if (fdb_delta_open) {
|
||||
/* Set up file extension */
|
||||
if (f_delta < 0) {
|
||||
strlcpy(filename, batch_prefix, sizeof(filename));
|
||||
strlcat(filename, rsync_delta_file, sizeof(filename));
|
||||
|
||||
/*
|
||||
* Open batch delta file for writing;
|
||||
* create it if it doesn't exist
|
||||
*/
|
||||
fdb_delta = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC,
|
||||
S_IREAD | S_IWRITE);
|
||||
if (fdb_delta == -1) {
|
||||
f_delta = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC,
|
||||
S_IREAD | S_IWRITE);
|
||||
if (f_delta < 0) {
|
||||
rprintf(FERROR, "Batch file %s open error: %s\n",
|
||||
filename, strerror(errno));
|
||||
close(fdb_delta);
|
||||
exit_cleanup(1);
|
||||
}
|
||||
fdb_delta_open = 0;
|
||||
}
|
||||
|
||||
/* Write buffer to batch delta file */
|
||||
|
||||
if (write(fdb_delta, buff, bytes_to_write) == -1) {
|
||||
if (write(f_delta, buff, bytes_to_write) < 0) {
|
||||
rprintf(FERROR, "Batch file %s write error: %s\n",
|
||||
filename, strerror(errno));
|
||||
close(fdb_delta);
|
||||
close(f_delta);
|
||||
exit_cleanup(1);
|
||||
}
|
||||
}
|
||||
|
||||
void close_batch_delta_file(void)
|
||||
{
|
||||
close(fdb_delta);
|
||||
close(f_delta);
|
||||
f_delta = -1;
|
||||
}
|
||||
|
||||
int read_batch_delta_file(char *buff, int len)
|
||||
{
|
||||
static int fdb_delta_open = 1;
|
||||
int bytes_read;
|
||||
char filename[MAXPATHLEN];
|
||||
|
||||
if (fdb_delta_open) {
|
||||
/* Set up file extension */
|
||||
if (f_delta < 0) {
|
||||
strlcpy(filename, batch_prefix, sizeof(filename));
|
||||
strlcat(filename, rsync_delta_file, sizeof(filename));
|
||||
|
||||
/* Open batch flist file for reading */
|
||||
fdb_delta = do_open(filename, O_RDONLY, 0);
|
||||
if (fdb_delta == -1) {
|
||||
f_delta = do_open(filename, O_RDONLY, 0);
|
||||
if (f_delta < 0) {
|
||||
rprintf(FERROR, "Batch file %s open error: %s\n",
|
||||
filename, strerror(errno));
|
||||
close(fdb_delta);
|
||||
close(f_delta);
|
||||
exit_cleanup(1);
|
||||
}
|
||||
fdb_delta_open = 0;
|
||||
}
|
||||
|
||||
/* Read delta batch file */
|
||||
|
||||
bytes_read = read(fdb_delta, buff, len);
|
||||
|
||||
if (bytes_read == -1) {
|
||||
bytes_read = read(f_delta, buff, len);
|
||||
if (bytes_read < 0) {
|
||||
rprintf(FERROR, "Batch file %s read error: %s\n",
|
||||
filename, strerror(errno));
|
||||
close(fdb_delta);
|
||||
close(f_delta);
|
||||
exit_cleanup(1);
|
||||
}
|
||||
|
||||
|
||||
Reference in new issue
Block a user