/* -*- c-file-style: "linux" -*-
-
- Copyright (C) 1996-2000 by Andrew Tridgell
+
+ rsync -- fast file replication program
+
+ Copyright (C) 1996-2000 by Andrew Tridgell
Copyright (C) Paul Mackerras 1996
-
+ Copyright (C) 2002 by Martin Pool <mbp@samba.org>
+
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.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-
+
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
extern int verbose;
extern int dry_run;
extern int relative_paths;
+extern int keep_dirlinks;
extern int preserve_links;
extern int am_root;
extern int preserve_devices;
extern int preserve_hard_links;
+extern int preserve_perms;
+extern int preserve_uid;
+extern int preserve_gid;
extern int update_only;
-extern int whole_file;
-extern int block_size;
+extern int opt_ignore_existing;
+extern int inplace;
+extern int make_backups;
extern int csum_length;
extern int ignore_times;
extern int size_only;
extern int io_timeout;
-extern int remote_version;
+extern int protocol_version;
extern int always_checksum;
-extern int modify_window;
+extern char *partial_dir;
extern char *compare_dest;
+extern int link_dest;
+extern int whole_file;
+extern int local_server;
+extern int list_only;
+extern int read_batch;
+extern int only_existing;
+extern int orig_umask;
+extern int safe_symlinks;
+extern unsigned int block_size;
+
+extern struct exclude_list_struct server_exclude_list;
/* choose whether to skip a particular file */
-static int skip_file(char *fname,
- struct file_struct *file, STRUCT_STAT *st)
+static int skip_file(char *fname, struct file_struct *file, STRUCT_STAT *st)
{
- if (st->st_size != file->length) {
+ if (st->st_size != file->length)
return 0;
+ if (link_dest) {
+ if (preserve_perms
+ && (st->st_mode & CHMOD_BITS) != (file->mode & CHMOD_BITS))
+ return 0;
+
+ if (am_root && preserve_uid && st->st_uid != file->uid)
+ return 0;
+
+ if (preserve_gid && file->gid != GID_NONE
+ && st->st_gid != file->gid)
+ return 0;
}
-
- /* if always checksum is set then we use the checksum instead
+
+ /* if always checksum is set then we use the checksum instead
of the file time to determine whether to sync */
if (always_checksum && S_ISREG(st->st_mode)) {
char sum[MD4_SUM_LENGTH];
- char fnamecmpdest[MAXPATHLEN];
-
- if (compare_dest != NULL) {
- if (access(fname, 0) != 0) {
- snprintf(fnamecmpdest,MAXPATHLEN,"%s/%s",
- compare_dest,fname);
- fname = fnamecmpdest;
- }
- }
file_checksum(fname,sum,st->st_size);
- if (remote_version < 21) {
- return (memcmp(sum,file->sum,2) == 0);
- } else {
- return (memcmp(sum,file->sum,MD4_SUM_LENGTH) == 0);
- }
+ return memcmp(sum, file->u.sum, protocol_version < 21 ? 2
+ : MD4_SUM_LENGTH) == 0;
}
- if (size_only) {
+ if (size_only)
return 1;
- }
- if (ignore_times) {
+ if (ignore_times)
return 0;
- }
- return (cmp_modtime(st->st_mtime,file->modtime) == 0);
+ return cmp_modtime(st->st_mtime, file->modtime) == 0;
}
-/* use a larger block size for really big files */
-static int adapt_block_size(struct file_struct *file, int bsize)
+/*
+ * NULL sum_struct means we have no checksums
+ */
+void write_sum_head(int f, struct sum_struct *sum)
{
- int ret;
+ static struct sum_struct null_sum;
- if (bsize != BLOCK_SIZE) return bsize;
+ if (sum == NULL)
+ sum = &null_sum;
- ret = file->length / (10000); /* rough heuristic */
- ret = ret & ~15; /* multiple of 16 */
- if (ret < bsize) ret = bsize;
- if (ret > CHUNK_SIZE/2) ret = CHUNK_SIZE/2;
- return ret;
+ write_int(f, sum->count);
+ write_int(f, sum->blength);
+ if (protocol_version >= 27)
+ write_int(f, sum->s2length);
+ write_int(f, sum->remainder);
}
-
/*
- send a sums struct down a fd
- */
-static void send_sums(struct sum_struct *s, int f_out)
+ * set (initialize) the size entries in the per-file sum_struct
+ * calculating dynamic block and checksum sizes.
+ *
+ * This is only called from generate_and_send_sums() but is a separate
+ * function to encapsulate the logic.
+ *
+ * The block size is a rounded square root of file length.
+ *
+ * The checksum size is determined according to:
+ * blocksum_bits = BLOCKSUM_EXP + 2*log2(file_len) - log2(block_len)
+ * provided by Donovan Baarda which gives a probability of rsync
+ * algorithm corrupting data and falling back using the whole md4
+ * checksums.
+ *
+ * This might be made one of several selectable heuristics.
+ */
+
+static void sum_sizes_sqroot(struct sum_struct *sum, uint64 len)
{
- int i;
+ unsigned int blength;
+ int s2length;
+ uint32 c;
+ uint64 l;
+
+ if (block_size) {
+ blength = block_size;
+ } else if (len <= BLOCK_SIZE * BLOCK_SIZE) {
+ blength = BLOCK_SIZE;
+ } else {
+ l = len;
+ c = 1;
+ while (l >>= 2) {
+ c <<= 1;
+ }
+ blength = 0;
+ do {
+ blength |= c;
+ if (len < (uint64)blength * blength)
+ blength &= ~c;
+ c >>= 1;
+ } while (c >= 8); /* round to multiple of 8 */
+ blength = MAX(blength, BLOCK_SIZE);
+ }
- /* tell the other guy how many we are going to be doing and how many
- bytes there are in the last chunk */
- write_int(f_out, s ? s->count : 0);
- write_int(f_out, s ? s->n : block_size);
- write_int(f_out, s ? s->remainder : 0);
+ if (protocol_version < 27) {
+ s2length = csum_length;
+ } else if (csum_length == SUM_LENGTH) {
+ s2length = SUM_LENGTH;
+ } else {
+ int b = BLOCKSUM_BIAS;
+ l = len;
+ while (l >>= 1) {
+ b += 2;
+ }
+ c = blength;
+ while (c >>= 1 && b) {
+ b--;
+ }
+ s2length = (b + 1 - 32 + 7) / 8; /* add a bit,
+ * subtract rollsum,
+ * round up
+ * --optimize in compiler--
+ */
+ s2length = MAX(s2length, csum_length);
+ s2length = MIN(s2length, SUM_LENGTH);
+ }
- if (!s)
- return;
+ sum->flength = len;
+ sum->blength = blength;
+ sum->s2length = s2length;
+ sum->count = (len + (blength - 1)) / blength;
+ sum->remainder = (len % blength);
- for (i = 0; i < s->count; i++) {
- write_int(f_out, s->sums[i].sum1);
- write_buf(f_out, s->sums[i].sum2, csum_length);
+ if (sum->count && verbose > 2) {
+ rprintf(FINFO, "count=%.0f rem=%u blength=%u s2length=%d flength=%.0f\n",
+ (double)sum->count, sum->remainder, sum->blength,
+ sum->s2length, (double)sum->flength);
}
}
-/*
- generate a stream of signatures/checksums that describe a buffer
- generate approximately one checksum every n bytes
- */
-static struct sum_struct *generate_sums(struct map_struct *buf,OFF_T len,int n)
+/*
+ * Generate and send a stream of signatures/checksums that describe a buffer
+ *
+ * Generate approximately one checksum every block_len bytes.
+ */
+static void generate_and_send_sums(int fd, OFF_T len, int f_out, int f_copy)
{
- int i;
- struct sum_struct *s;
- int count;
- int block_len = n;
- int remainder = (len%block_len);
+ size_t i;
+ struct map_struct *mapbuf;
+ struct sum_struct sum;
OFF_T offset = 0;
- count = (len+(block_len-1))/block_len;
+ sum_sizes_sqroot(&sum, len);
- s = (struct sum_struct *)malloc(sizeof(*s));
- if (!s) out_of_memory("generate_sums");
-
- s->count = count;
- s->remainder = remainder;
- s->n = n;
- s->flength = len;
-
- if (count==0) {
- s->sums = NULL;
- return s;
- }
+ if (len > 0)
+ mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength);
+ else
+ mapbuf = NULL;
- if (verbose > 3)
- rprintf(FINFO,"count=%d rem=%d n=%d flength=%.0f\n",
- s->count,s->remainder,s->n,(double)s->flength);
+ write_sum_head(f_out, &sum);
- s->sums = (struct sum_buf *)malloc(sizeof(s->sums[0])*s->count);
- if (!s->sums) out_of_memory("generate_sums");
-
- for (i=0;i<count;i++) {
- int n1 = MIN(len,n);
- char *map = map_ptr(buf,offset,n1);
+ for (i = 0; i < sum.count; i++) {
+ unsigned int n1 = MIN(len, sum.blength);
+ char *map = map_ptr(mapbuf, offset, n1);
+ uint32 sum1 = get_checksum1(map, n1);
+ char sum2[SUM_LENGTH];
- s->sums[i].sum1 = get_checksum1(map,n1);
- get_checksum2(map,n1,s->sums[i].sum2);
+ if (f_copy >= 0)
+ full_write(f_copy, map, n1);
- s->sums[i].offset = offset;
- s->sums[i].len = n1;
- s->sums[i].i = i;
-
- if (verbose > 3)
- rprintf(FINFO,"chunk[%d] offset=%.0f len=%d sum1=%08x\n",
- i,(double)s->sums[i].offset,s->sums[i].len,s->sums[i].sum1);
+ get_checksum2(map, n1, sum2);
+ if (verbose > 3) {
+ rprintf(FINFO,
+ "chunk[%.0f] offset=%.0f len=%u sum1=%08lx\n",
+ (double)i, (double)offset, n1,
+ (unsigned long)sum1);
+ }
+ write_int(f_out, sum1);
+ write_buf(f_out, sum2, sum.s2length);
len -= n1;
offset += n1;
}
- return s;
+ if (mapbuf)
+ unmap_file(mapbuf);
}
/*
- * Acts on file number I from FLIST, whose name is fname.
+ * Acts on file number @p i from @p flist, whose name is @p fname.
*
* First fixes up permissions, then generates checksums for the file.
*
- * (This comment was added later by mbp who was trying to work it out;
- * it might be wrong.)
- */
-void recv_generator(char *fname,struct file_list *flist,int i,int f_out)
-{
- int fd;
- STRUCT_STAT st;
- struct map_struct *buf;
- struct sum_struct *s;
- int statret;
- struct file_struct *file = flist->files[i];
- char *fnamecmp;
+ * @note This comment was added later by mbp who was trying to work it
+ * out. It might be wrong.
+ */
+static void recv_generator(char *fname, struct file_struct *file, int i,
+ int f_out)
+{
+ int fd, f_copy;
+ STRUCT_STAT st, partial_st;
+ struct file_struct *back_file;
+ int statret, stat_errno;
+ char *fnamecmp, *partialptr, *backupptr;
char fnamecmpbuf[MAXPATHLEN];
- extern char *compare_dest;
- extern int list_only;
- extern int preserve_perms;
- extern int only_existing;
- if (list_only) return;
+ if (list_only)
+ return;
if (verbose > 2)
- rprintf(FINFO,"recv_generator(%s,%d)\n",fname,i);
+ rprintf(FINFO, "recv_generator(%s,%d)\n", safe_fname(fname), i);
+
+ if (server_exclude_list.head
+ && check_exclude(&server_exclude_list, fname,
+ S_ISDIR(file->mode)) < 0) {
+ if (verbose) {
+ rprintf(FINFO, "skipping server-excluded file \"%s\"\n",
+ safe_fname(fname));
+ }
+ return;
+ }
- statret = link_stat(fname,&st);
+ if (dry_run > 1) {
+ statret = -1;
+ stat_errno = ENOENT;
+ } else {
+ statret = link_stat(fname, &st,
+ keep_dirlinks && S_ISDIR(file->mode));
+ stat_errno = errno;
+ }
- if (only_existing && statret == -1 && errno == ENOENT) {
+ if (only_existing && statret == -1 && stat_errno == ENOENT) {
/* we only want to update existing files */
- if (verbose > 1) rprintf(FINFO, RSYNC_NAME
- ": not creating new file \"%s\"\n",fname);
+ if (verbose > 1) {
+ rprintf(FINFO, "not creating new file \"%s\"\n",
+ safe_fname(fname));
+ }
return;
}
- if (statret == 0 &&
- !preserve_perms &&
- (S_ISDIR(st.st_mode) == S_ISDIR(file->mode))) {
+ if (statret == 0 && !preserve_perms
+ && S_ISDIR(st.st_mode) == S_ISDIR(file->mode)) {
/* if the file exists already and we aren't perserving
- presmissions then act as though the remote end sent
- us the file permissions we already have */
- file->mode = (file->mode & _S_IFMT) | (st.st_mode & ~_S_IFMT);
+ * permissions then act as though the remote end sent
+ * us the file permissions we already have */
+ file->mode = (file->mode & ~CHMOD_BITS)
+ | (st.st_mode & CHMOD_BITS);
}
if (S_ISDIR(file->mode)) {
- /* The file to be received is a directory, so we need
- * to prepare appropriately. If there is already a
- * file of that name and it is *not* a directory, then
- * we need to delete it. If it doesn't exist, then
- * recursively create it. */
-
- if (dry_run) return; /* XXXX -- might cause inaccuracies?? -- mbp */
+ /* The file to be received is a directory, so we need
+ * to prepare appropriately. If there is already a
+ * file of that name and it is *not* a directory, then
+ * we need to delete it. If it doesn't exist, then
+ * recursively create it. */
+
+ if (dry_run)
+ return; /* TODO: causes inaccuracies -- fix */
if (statret == 0 && !S_ISDIR(st.st_mode)) {
if (robust_unlink(fname) != 0) {
- rprintf(FERROR, RSYNC_NAME
- ": recv_generator: unlink \"%s\" to make room for directory: %s\n",
- fname,strerror(errno));
+ rsyserr(FERROR, errno,
+ "recv_generator: unlink %s to make room for directory",
+ full_fname(fname));
return;
}
statret = -1;
}
if (statret != 0 && do_mkdir(fname,file->mode) != 0 && errno != EEXIST) {
- if (!(relative_paths && errno==ENOENT &&
- create_directory_path(fname)==0 &&
- do_mkdir(fname,file->mode)==0)) {
- rprintf(FERROR, RSYNC_NAME ": recv_generator: mkdir \"%s\": %s (2)\n",
- fname,strerror(errno));
+ if (!(relative_paths && errno == ENOENT
+ && create_directory_path(fname, orig_umask) == 0
+ && do_mkdir(fname, file->mode) == 0)) {
+ rsyserr(FERROR, errno,
+ "recv_generator: mkdir %s failed",
+ full_fname(fname));
}
}
- /* f_out is set to -1 when doing final directory
- permission and modification time repair */
- if (set_perms(fname,file,NULL,0) && verbose && (f_out != -1))
- rprintf(FINFO,"%s/\n",fname);
+ /* f_out is set to -1 when doing final directory-permission
+ * and modification-time repair. */
+ if (set_perms(fname, file, statret ? NULL : &st, 0)
+ && verbose && f_out != -1)
+ rprintf(FINFO, "%s/\n", safe_fname(fname));
return;
}
#if SUPPORT_LINKS
char lnk[MAXPATHLEN];
int l;
- extern int safe_symlinks;
- if (safe_symlinks && unsafe_symlink(file->link, fname)) {
+ if (safe_symlinks && unsafe_symlink(file->u.link, fname)) {
if (verbose) {
- rprintf(FINFO,RSYNC_NAME ": ignoring unsafe symlink \"%s\" -> \"%s\"\n",
- fname,file->link);
+ rprintf(FINFO, "ignoring unsafe symlink %s -> \"%s\"\n",
+ full_fname(fname), file->u.link);
}
return;
}
/* A link already pointing to the
* right place -- no further action
* required. */
- if (strcmp(lnk,file->link) == 0) {
- set_perms(fname,file,&st,1);
+ if (strcmp(lnk,file->u.link) == 0) {
+ set_perms(fname, file, &st,
+ PERMS_REPORT);
return;
}
- }
+ }
/* Not a symlink, so delete whatever's
* already there and put a new symlink
- * in place. */
+ * in place. */
delete_file(fname);
}
- if (do_symlink(file->link,fname) != 0) {
- rprintf(FERROR,RSYNC_NAME": symlink \"%s\" -> \"%s\": %s\n",
- fname,file->link,strerror(errno));
+ if (do_symlink(file->u.link,fname) != 0) {
+ rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed",
+ full_fname(fname), safe_fname(file->u.link));
} else {
set_perms(fname,file,NULL,0);
if (verbose) {
- rprintf(FINFO,RSYNC_NAME": %s -> %s\n",
- fname,file->link);
+ rprintf(FINFO, "%s -> %s\n", safe_fname(fname),
+ safe_fname(file->u.link));
}
}
#endif
#ifdef HAVE_MKNOD
if (am_root && preserve_devices && IS_DEVICE(file->mode)) {
- if (statret != 0 ||
+ if (statret != 0 ||
st.st_mode != file->mode ||
- st.st_rdev != file->rdev) {
+ st.st_rdev != file->u.rdev) {
delete_file(fname);
- if (verbose > 2)
+ if (verbose > 2) {
rprintf(FINFO,"mknod(%s,0%o,0x%x)\n",
- fname,(int)file->mode,(int)file->rdev);
- if (do_mknod(fname,file->mode,file->rdev) != 0) {
- rprintf(FERROR,"mknod %s : %s\n",fname,strerror(errno));
+ safe_fname(fname),
+ (int)file->mode, (int)file->u.rdev);
+ }
+ if (do_mknod(fname,file->mode,file->u.rdev) != 0) {
+ rsyserr(FERROR, errno, "mknod %s failed",
+ full_fname(fname));
} else {
set_perms(fname,file,NULL,0);
- if (verbose)
- rprintf(FINFO,"%s\n",fname);
+ if (verbose) {
+ rprintf(FINFO, "%s\n",
+ safe_fname(fname));
+ }
}
} else {
- set_perms(fname,file,&st,1);
+ set_perms(fname, file, &st, PERMS_REPORT);
}
return;
}
#endif
- if (preserve_hard_links && check_hard_link(file)) {
- if (verbose > 1)
- rprintf(FINFO, RSYNC_NAME
- ": \"%s\" is a hard link\n",f_name(file));
+ if (preserve_hard_links && hard_link_check(file, HL_CHECK_MASTER))
return;
- }
if (!S_ISREG(file->mode)) {
- rprintf(FINFO, RSYNC_NAME
- ": skipping non-regular file \"%s\"\n",fname);
+ rprintf(FINFO, "skipping non-regular file \"%s\"\n",
+ safe_fname(fname));
return;
}
fnamecmp = fname;
- if ((statret == -1) && (compare_dest != NULL)) {
+ if (statret == -1 && compare_dest != NULL) {
/* try the file at compare_dest instead */
- int saveerrno = errno;
- snprintf(fnamecmpbuf,MAXPATHLEN,"%s/%s",compare_dest,fname);
- statret = link_stat(fnamecmpbuf,&st);
- if (!S_ISREG(st.st_mode))
- statret = -1;
- if (statret == -1)
- errno = saveerrno;
- else
- fnamecmp = fnamecmpbuf;
+ pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, compare_dest, fname);
+ if (link_stat(fnamecmpbuf, &st, 0) == 0
+ && S_ISREG(st.st_mode)) {
+#if HAVE_LINK
+ if (link_dest && !dry_run) {
+ if (do_link(fnamecmpbuf, fname) < 0) {
+ if (verbose) {
+ rsyserr(FINFO, errno,
+ "link %s => %s",
+ fnamecmpbuf,
+ safe_fname(fname));
+ }
+ fnamecmp = fnamecmpbuf;
+ }
+ } else
+#endif
+ fnamecmp = fnamecmpbuf;
+ statret = 0;
+ }
}
+ if (statret == 0 && !S_ISREG(st.st_mode)) {
+ if (delete_file(fname) != 0)
+ return;
+ statret = -1;
+ stat_errno = ENOENT;
+ }
+
+ if (partial_dir && (partialptr = partial_dir_fname(fname))
+ && link_stat(partialptr, &partial_st, 0) == 0
+ && S_ISREG(partial_st.st_mode)) {
+ if (statret == -1)
+ goto prepare_to_open;
+ } else
+ partialptr = NULL;
+
if (statret == -1) {
- if (errno == ENOENT) {
+ if (preserve_hard_links && hard_link_check(file, HL_SKIP))
+ return;
+ if (stat_errno == ENOENT) {
write_int(f_out,i);
- if (!dry_run) send_sums(NULL,f_out);
- } else {
- if (verbose > 1)
- rprintf(FERROR, RSYNC_NAME
- ": recv_generator failed to open \"%s\": %s\n",
- fname, strerror(errno));
+ if (!dry_run && !read_batch)
+ write_sum_head(f_out, NULL);
+ } else if (verbose > 1) {
+ rsyserr(FERROR, stat_errno,
+ "recv_generator: failed to stat %s",
+ full_fname(fname));
}
return;
}
- if (!S_ISREG(st.st_mode)) {
- if (delete_file(fname) != 0) {
- return;
- }
-
- /* now pretend the file didn't exist */
- write_int(f_out,i);
- if (!dry_run) send_sums(NULL,f_out);
+ if (opt_ignore_existing && fnamecmp == fname) {
+ if (verbose > 1)
+ rprintf(FINFO, "%s exists\n", safe_fname(fname));
return;
}
- if (update_only && cmp_modtime(st.st_mtime,file->modtime)>0 && fnamecmp == fname) {
+ if (update_only && fnamecmp == fname
+ && cmp_modtime(st.st_mtime, file->modtime) > 0) {
if (verbose > 1)
- rprintf(FINFO,"%s is newer\n",fname);
+ rprintf(FINFO, "%s is newer\n", safe_fname(fname));
return;
}
- if (skip_file(fname, file, &st)) {
+ if (skip_file(fnamecmp, file, &st)) {
if (fnamecmp == fname)
- set_perms(fname,file,&st,1);
+ set_perms(fname, file, &st, PERMS_REPORT);
return;
}
- if (dry_run) {
+prepare_to_open:
+ if (dry_run || read_batch) {
write_int(f_out,i);
return;
}
- if (whole_file) {
+ if (whole_file > 0) {
write_int(f_out,i);
- send_sums(NULL,f_out);
+ write_sum_head(f_out, NULL);
return;
}
- /* open the file */
+ if (partialptr) {
+ st = partial_st;
+ fnamecmp = partialptr;
+ }
+
+ /* open the file */
fd = do_open(fnamecmp, O_RDONLY, 0);
if (fd == -1) {
- rprintf(FERROR,RSYNC_NAME": failed to open \"%s\", continuing : %s\n",fnamecmp,strerror(errno));
+ rsyserr(FERROR, errno, "failed to open %s, continuing",
+ full_fname(fnamecmp));
+ pretend_missing:
/* pretend the file didn't exist */
+ if (preserve_hard_links && hard_link_check(file, HL_SKIP))
+ return;
write_int(f_out,i);
- send_sums(NULL,f_out);
+ write_sum_head(f_out, NULL);
return;
}
- if (st.st_size > 0) {
- buf = map_file(fd,st.st_size);
+ if (inplace && make_backups) {
+ if (!(backupptr = get_backup_name(fname))) {
+ close(fd);
+ return;
+ }
+ if (!(back_file = make_file(fname, NULL, NO_EXCLUDES))) {
+ close(fd);
+ goto pretend_missing;
+ }
+ if (robust_unlink(backupptr) && errno != ENOENT) {
+ rsyserr(FERROR, errno, "unlink %s",
+ full_fname(backupptr));
+ free(back_file);
+ close(fd);
+ return;
+ }
+ if ((f_copy = do_open(backupptr,
+ O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0) {
+ rsyserr(FERROR, errno, "open %s",
+ full_fname(backupptr));
+ free(back_file);
+ close(fd);
+ return;
+ }
} else {
- buf = NULL;
+ backupptr = NULL;
+ back_file = NULL;
+ f_copy = -1;
}
- if (verbose > 3)
- rprintf(FINFO,"gen mapped %s of size %.0f\n",fnamecmp,(double)st.st_size);
-
- s = generate_sums(buf,st.st_size,adapt_block_size(file, block_size));
+ if (verbose > 3) {
+ rprintf(FINFO, "gen mapped %s of size %.0f\n",
+ safe_fname(fnamecmp), (double)st.st_size);
+ }
if (verbose > 2)
- rprintf(FINFO,"sending sums for %d\n",i);
+ rprintf(FINFO, "generating and sending sums for %d\n", i);
write_int(f_out,i);
- send_sums(s,f_out);
+ generate_and_send_sums(fd, st.st_size, f_out, f_copy);
- close(fd);
- if (buf) unmap_file(buf);
+ if (f_copy >= 0) {
+ close(f_copy);
+ set_perms(backupptr, back_file, NULL, 0);
+ if (verbose > 1)
+ rprintf(FINFO, "backed up %s to %s\n", fname, backupptr);
+ free(back_file);
+ }
- free_sums(s);
+ close(fd);
}
-
-void generate_files(int f,struct file_list *flist,char *local_name,int f_recv)
+void generate_files(int f_out, struct file_list *flist, char *local_name)
{
int i;
- int phase=0;
+ int phase = 0;
+ char fbuf[MAXPATHLEN];
- if (verbose > 2)
- rprintf(FINFO,"generator starting pid=%d count=%d\n",
- (int)getpid(),flist->count);
+ if (verbose > 2) {
+ rprintf(FINFO, "generator starting pid=%ld count=%d\n",
+ (long)getpid(), flist->count);
+ }
+
+ if (verbose >= 2) {
+ rprintf(FINFO,
+ whole_file > 0
+ ? "delta-transmission disabled for local transfer or --whole-file\n"
+ : "delta transmission enabled\n");
+ }
/* we expect to just sit around now, so don't exit on a
timeout. If we really get a timeout then the other process should
for (i = 0; i < flist->count; i++) {
struct file_struct *file = flist->files[i];
- mode_t saved_mode = file->mode;
- if (!file->basename) continue;
+ struct file_struct copy;
+ if (!file->basename)
+ continue;
/* we need to ensure that any directories we create have writeable
permissions initially so that we can create the files within
them. This is then fixed after the files are transferred */
- if (!am_root && S_ISDIR(file->mode)) {
- file->mode |= S_IWUSR; /* user write */
- /* XXX: Could this be causing a problem on SCO? Perhaps their
- * handling of permissions is strange? */
+ if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR)) {
+ copy = *file;
+ /* XXX: Could this be causing a problem on SCO? Perhaps their
+ * handling of permissions is strange? */
+ copy.mode |= S_IWUSR; /* user write */
+ file = ©
}
- recv_generator(local_name?local_name:f_name(file),
- flist,i,f);
-
- file->mode = saved_mode;
+ recv_generator(local_name ? local_name : f_name_to(file, fbuf),
+ file, i, f_out);
}
phase++;
csum_length = SUM_LENGTH;
- ignore_times=1;
+ ignore_times = 1;
if (verbose > 2)
rprintf(FINFO,"generate_files phase=%d\n",phase);
- write_int(f,-1);
+ write_int(f_out, -1);
- if (remote_version >= 13) {
- /* in newer versions of the protocol the files can cycle through
- the system more than once to catch initial checksum errors */
- for (i=read_int(f_recv); i != -1; i=read_int(f_recv)) {
- struct file_struct *file = flist->files[i];
- recv_generator(local_name?local_name:f_name(file),
- flist,i,f);
- }
+ /* files can cycle through the system more than once
+ * to catch initial checksum errors */
+ while ((i = get_redo_num()) != -1) {
+ struct file_struct *file = flist->files[i];
+ recv_generator(local_name ? local_name : f_name_to(file, fbuf),
+ file, i, f_out);
+ }
- phase++;
- if (verbose > 2)
- rprintf(FINFO,"generate_files phase=%d\n",phase);
+ phase++;
+ if (verbose > 2)
+ rprintf(FINFO,"generate_files phase=%d\n",phase);
- write_int(f,-1);
+ write_int(f_out, -1);
+
+ if (preserve_hard_links)
+ do_hard_links();
+
+ /* now we need to fix any directory permissions that were
+ * modified during the transfer */
+ for (i = 0; i < flist->count; i++) {
+ struct file_struct *file = flist->files[i];
+ if (!file->basename || !S_ISDIR(file->mode))
+ continue;
+ recv_generator(local_name ? local_name : f_name(file),
+ file, i, -1);
}
+
+ if (verbose > 2)
+ rprintf(FINFO,"generate_files finished\n");
}