-/*
- Copyright (C) Andrew Tridgell 1996
- Copyright (C) Paul Mackerras 1996
-
- 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.
-*/
+/*
+ * Routines common to more than one of the rsync processes.
+ *
+ * Copyright (C) 1996 Andrew Tridgell
+ * Copyright (C) 1996 Paul Mackerras
+ * 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 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
+ * 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.,
+ * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
+ */
#include "rsync.h"
-
-extern int csum_length;
+#if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H
+#include <iconv.h>
+#endif
+#if defined HAVE_LIBCHARSET_H && defined HAVE_LOCALE_CHARSET
+#include <libcharset.h>
+#elif defined HAVE_LANGINFO_H && defined HAVE_NL_LANGINFO
+#include <langinfo.h>
+#endif
extern int verbose;
-extern int am_server;
-extern int always_checksum;
-extern time_t starttime;
-
-extern int remote_version;
-
-extern char *backup_suffix;
-
-extern int block_size;
-extern int update_only;
-extern int make_backups;
-extern int preserve_links;
-extern int preserve_hard_links;
+extern int dry_run;
+extern int preserve_acls;
+extern int preserve_xattrs;
extern int preserve_perms;
-extern int preserve_devices;
+extern int preserve_executability;
+extern int preserve_times;
+extern int omit_dir_times;
+extern int am_root;
+extern int am_server;
+extern int am_sender;
+extern int am_generator;
+extern int am_starting_up;
+extern int allow_8bit_chars;
+extern int protocol_version;
extern int preserve_uid;
extern int preserve_gid;
-extern int preserve_times;
-extern int dry_run;
-extern int ignore_times;
-extern int recurse;
-extern int delete_mode;
-extern int cvs_exclude;
-
-/*
- free a sums struct
- */
-static void free_sums(struct sum_struct *s)
-{
- if (s->sums) free(s->sums);
- free(s);
-}
-
+extern int inc_recurse;
+extern int inplace;
+extern int flist_eof;
+extern int keep_dirlinks;
+extern int make_backups;
+extern struct file_list *cur_flist, *first_flist, *dir_flist;
+extern struct chmod_mode_struct *daemon_chmod_modes;
+#if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H
+iconv_t ic_chck = (iconv_t)-1;
-/*
- send a sums struct down a fd
- */
-static void send_sums(struct sum_struct *s,int f_out)
+static const char *default_charset(void)
{
- int i;
-
- /* 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 (s)
- 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);
- }
- write_flush(f_out);
+#if defined HAVE_LIBCHARSET_H && defined HAVE_LOCALE_CHARSET
+ return locale_charset();
+#elif defined HAVE_LANGINFO_H && defined HAVE_NL_LANGINFO
+ return nl_langinfo(CODESET);
+#else
+ return ""; /* Works with (at the very least) gnu iconv... */
+#endif
}
-
-/*
- 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)
+void setup_iconv()
{
- int i;
- struct sum_struct *s;
- int count;
- int block_len = n;
- int remainder = (len%block_len);
- off_t offset = 0;
-
- count = (len+(block_len-1))/block_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 (verbose > 3)
- fprintf(FERROR,"count=%d rem=%d n=%d flength=%d\n",
- s->count,s->remainder,s->n,(int)s->flength);
-
- 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);
-
- s->sums[i].sum1 = get_checksum1(map,n1);
- get_checksum2(map,n1,s->sums[i].sum2);
-
- s->sums[i].offset = offset;
- s->sums[i].len = n1;
- s->sums[i].i = i;
-
- if (verbose > 3)
- fprintf(FERROR,"chunk[%d] offset=%d len=%d sum1=%08x\n",
- i,(int)s->sums[i].offset,s->sums[i].len,s->sums[i].sum1);
-
- len -= n1;
- offset += n1;
- }
-
- return s;
+ if (!am_server && !allow_8bit_chars) {
+ const char *defset = default_charset();
+
+ /* It's OK if this fails... */
+ ic_chck = iconv_open(defset, defset);
+
+ if (verbose > 3) {
+ if (ic_chck == (iconv_t)-1) {
+ rprintf(FINFO,
+ "note: iconv_open(\"%s\", \"%s\") failed (%d)"
+ " -- using isprint() instead of iconv().\n",
+ defset, defset, errno);
+ } else {
+ rprintf(FINFO,
+ "note: iconv_open(\"%s\", \"%s\") succeeded.\n",
+ defset, defset);
+ }
+ }
+ }
}
+#endif
-
-/*
- receive the checksums for a buffer
- */
-static struct sum_struct *receive_sums(int f)
+int read_ndx_and_attrs(int f_in, int *iflag_ptr, uchar *type_ptr,
+ char *buf, int *len_ptr)
{
- struct sum_struct *s;
- int i;
- off_t offset = 0;
- int block_len;
-
- s = (struct sum_struct *)malloc(sizeof(*s));
- if (!s) out_of_memory("receive_sums");
-
- s->count = read_int(f);
- s->n = read_int(f);
- s->remainder = read_int(f);
- s->sums = NULL;
-
- if (verbose > 3)
- fprintf(FERROR,"count=%d n=%d rem=%d\n",
- s->count,s->n,s->remainder);
-
- block_len = s->n;
-
- if (s->count == 0)
- return(s);
-
- s->sums = (struct sum_buf *)malloc(sizeof(s->sums[0])*s->count);
- if (!s->sums) out_of_memory("receive_sums");
-
- for (i=0;i<s->count;i++) {
- s->sums[i].sum1 = read_int(f);
- read_buf(f,s->sums[i].sum2,csum_length);
-
- s->sums[i].offset = offset;
- s->sums[i].i = i;
+ int len, iflags = 0;
+ struct file_list *flist;
+ uchar fnamecmp_type = FNAMECMP_FNAME;
+ int ndx;
+
+ read_loop:
+ while (1) {
+ ndx = read_ndx(f_in);
+
+ if (ndx >= 0)
+ break;
+ if (ndx == NDX_DONE)
+ return ndx;
+ if (!inc_recurse || am_sender)
+ goto invalid_ndx;
+ if (ndx == NDX_FLIST_EOF) {
+ flist_eof = 1;
+ send_msg(MSG_FLIST_EOF, "", 0);
+ continue;
+ }
+ ndx = NDX_FLIST_OFFSET - ndx;
+ if (ndx < 0 || ndx >= dir_flist->count) {
+ ndx = NDX_FLIST_OFFSET - ndx;
+ rprintf(FERROR,
+ "Invalid dir index: %d (%d - %d)\n",
+ ndx, NDX_FLIST_OFFSET,
+ NDX_FLIST_OFFSET - dir_flist->count);
+ exit_cleanup(RERR_PROTOCOL);
+ }
+
+ /* Send everything read from f_in to msg_fd_out. */
+ send_msg_int(MSG_FLIST, ndx);
+ start_flist_forward(f_in);
+ flist = recv_file_list(f_in);
+ flist->parent_ndx = ndx;
+ stop_flist_forward();
+ }
- if (i == s->count-1 && s->remainder != 0) {
- s->sums[i].len = s->remainder;
- } else {
- s->sums[i].len = s->n;
- }
- offset += s->sums[i].len;
+ iflags = protocol_version >= 29 ? read_shortint(f_in)
+ : ITEM_TRANSFER | ITEM_MISSING_DATA;
- if (verbose > 3)
- fprintf(FERROR,"chunk[%d] len=%d offset=%d sum1=%08x\n",
- i,s->sums[i].len,(int)s->sums[i].offset,s->sums[i].sum1);
- }
+ /* Honor the old-style keep-alive indicator. */
+ if (protocol_version < 30
+ && ndx == cur_flist->count && iflags == ITEM_IS_NEW) {
+ if (am_sender)
+ maybe_send_keepalive();
+ goto read_loop;
+ }
- s->flength = offset;
+ if (!(flist = flist_for_ndx(ndx))) {
+ invalid_ndx:
+ rprintf(FERROR,
+ "Invalid file index: %d (%d - %d) with iflags %x [%s]\n",
+ ndx, first_flist->ndx_start + first_flist->ndx_start,
+ first_flist->prev->ndx_start + first_flist->ndx_start
+ + first_flist->prev->count - 1, iflags, who_am_i());
+ exit_cleanup(RERR_PROTOCOL);
+ }
+ cur_flist = flist;
+
+ if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
+ fnamecmp_type = read_byte(f_in);
+ *type_ptr = fnamecmp_type;
+
+ if (iflags & ITEM_XNAME_FOLLOWS) {
+ if ((len = read_vstring(f_in, buf, MAXPATHLEN)) < 0)
+ exit_cleanup(RERR_PROTOCOL);
+ } else {
+ *buf = '\0';
+ len = -1;
+ }
+ *len_ptr = len;
+
+ if (iflags & ITEM_TRANSFER) {
+ int i = ndx - cur_flist->ndx_start;
+ if (!S_ISREG(cur_flist->files[i]->mode)) {
+ rprintf(FERROR,
+ "received request to transfer non-regular file: %d [%s]\n",
+ ndx, who_am_i());
+ exit_cleanup(RERR_PROTOCOL);
+ }
+ }
- return s;
+ *iflag_ptr = iflags;
+ return ndx;
}
-
-static void set_perms(char *fname,struct file_struct *file,struct stat *st,
- int report)
+/*
+ free a sums struct
+ */
+void free_sums(struct sum_struct *s)
{
- int updated = 0;
- struct stat st2;
-
- if (dry_run) return;
-
- if (!st) {
- if (stat(fname,&st2) != 0) {
- fprintf(FERROR,"stat %s : %s\n",fname,strerror(errno));
- return;
- }
- st = &st2;
- }
-
- if (preserve_times && !S_ISLNK(st->st_mode) &&
- st->st_mtime != file->modtime) {
- updated = 1;
- if (set_modtime(fname,file->modtime) != 0) {
- fprintf(FERROR,"failed to set times on %s : %s\n",
- fname,strerror(errno));
- return;
- }
- }
-
-#ifdef HAVE_CHMOD
- if (preserve_perms && !S_ISLNK(st->st_mode) &&
- st->st_mode != file->mode) {
- updated = 1;
- if (chmod(fname,file->mode) != 0) {
- fprintf(FERROR,"failed to set permissions on %s : %s\n",
- fname,strerror(errno));
- return;
- }
- }
-#endif
-
- if ((preserve_uid && st->st_uid != file->uid) ||
- (preserve_gid && st->st_gid != file->gid)) {
- updated = 1;
- if (chown(fname,
- preserve_uid?file->uid:-1,
- preserve_gid?file->gid:-1) != 0) {
- if (verbose>1 || preserve_uid)
- fprintf(FERROR,"chown %s : %s\n",fname,strerror(errno));
- return;
- }
- }
-
- if (verbose > 1 && report) {
- if (updated)
- fprintf(FINFO,"%s\n",fname);
- else
- fprintf(FINFO,"%s is uptodate\n",fname);
- }
+ if (s->sums) free(s->sums);
+ free(s);
}
-
-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;
- char sum[MD4_SUM_LENGTH];
- int statret;
- struct file_struct *file = &flist->files[i];
-
- if (verbose > 2)
- fprintf(FERROR,"recv_generator(%s,%d)\n",fname,i);
-
- statret = lstat(fname,&st);
-
-#if SUPPORT_LINKS
- if (preserve_links && S_ISLNK(file->mode)) {
- char lnk[MAXPATHLEN];
- int l;
- if (statret == 0) {
- l = readlink(fname,lnk,MAXPATHLEN-1);
- if (l > 0) {
- lnk[l] = 0;
- if (strcmp(lnk,file->link) == 0) {
- set_perms(fname,file,&st,1);
- return;
+/* This is only called when we aren't preserving permissions. Figure out what
+ * the permissions should be and return them merged back into the mode. */
+mode_t dest_mode(mode_t flist_mode, mode_t stat_mode, int dflt_perms,
+ int exists)
+{
+ int new_mode;
+ /* If the file already exists, we'll return the local permissions,
+ * possibly tweaked by the --executability option. */
+ if (exists) {
+ new_mode = (flist_mode & ~CHMOD_BITS) | (stat_mode & CHMOD_BITS);
+ if (preserve_executability && S_ISREG(flist_mode)) {
+ /* If the source file is executable, grant execute
+ * rights to everyone who can read, but ONLY if the
+ * file isn't already executable. */
+ if (!(flist_mode & 0111))
+ new_mode &= ~0111;
+ else if (!(stat_mode & 0111))
+ new_mode |= (new_mode & 0444) >> 2;
+ }
+ } else {
+ /* Apply destination default permissions and turn
+ * off special permissions. */
+ new_mode = flist_mode & (~CHMOD_BITS | dflt_perms);
}
- }
- }
- if (!dry_run) unlink(fname);
- if (!dry_run && symlink(file->link,fname) != 0) {
- fprintf(FERROR,"link %s -> %s : %s\n",
- fname,file->link,strerror(errno));
- } else {
- set_perms(fname,file,NULL,0);
- if (verbose)
- fprintf(FINFO,"%s -> %s\n",
- fname,file->link);
- }
- return;
- }
-#endif
+ return new_mode;
+}
-#ifdef HAVE_MKNOD
- if (preserve_devices && IS_DEVICE(file->mode)) {
- if (statret != 0 ||
- st.st_mode != file->mode ||
- st.st_rdev != file->rdev) {
- if (!dry_run) unlink(fname);
- if (verbose > 2)
- fprintf(FERROR,"mknod(%s,0%o,0x%x)\n",
- fname,(int)file->mode,(int)file->rdev);
- if (!dry_run &&
- mknod(fname,file->mode,file->rdev) != 0) {
- fprintf(FERROR,"mknod %s : %s\n",fname,strerror(errno));
- } else {
- set_perms(fname,file,NULL,0);
- if (verbose)
- fprintf(FINFO,"%s\n",fname);
- }
- } else {
- set_perms(fname,file,&st,1);
- }
- return;
- }
+int set_file_attrs(const char *fname, struct file_struct *file, statx *sxp,
+ const char *fnamecmp, int flags)
+{
+ int updated = 0;
+ statx sx2;
+ int change_uid, change_gid;
+ mode_t new_mode = file->mode;
+
+ if (!sxp) {
+ if (dry_run)
+ return 1;
+ if (link_stat(fname, &sx2.st, 0) < 0) {
+ rsyserr(FERROR, errno, "stat %s failed",
+ full_fname(fname));
+ return 0;
+ }
+#ifdef SUPPORT_ACLS
+ sx2.acc_acl = sx2.def_acl = NULL;
#endif
+#ifdef SUPPORT_XATTRS
+ sx2.xattr = NULL;
+#endif
+ if (!preserve_perms && S_ISDIR(new_mode)
+ && sx2.st.st_mode & S_ISGID) {
+ /* We just created this directory and its setgid
+ * bit is on, so make sure it stays on. */
+ new_mode |= S_ISGID;
+ }
+ sxp = &sx2;
+ }
- if (preserve_hard_links && check_hard_link(file)) {
- if (verbose > 1)
- fprintf(FINFO,"%s is a hard link\n",file->name);
- return;
- }
-
- if (!S_ISREG(file->mode)) {
- fprintf(FERROR,"skipping non-regular file %s\n",fname);
- return;
- }
-
- if (statret == -1) {
- if (errno == ENOENT) {
- write_int(f_out,i);
- if (!dry_run) send_sums(NULL,f_out);
- } else {
- if (verbose > 1)
- fprintf(FERROR,"recv_generator failed to open %s\n",fname);
- }
- return;
- }
-
- if (!S_ISREG(st.st_mode)) {
- fprintf(FERROR,"%s : not a regular file\n",fname);
- return;
- }
-
- if (update_only && st.st_mtime >= file->modtime) {
- if (verbose > 1)
- fprintf(FERROR,"%s is newer\n",fname);
- return;
- }
-
- if (always_checksum && S_ISREG(st.st_mode)) {
- file_checksum(fname,sum,st.st_size);
- }
-
- if (st.st_size == file->length &&
- ((!ignore_times && st.st_mtime == file->modtime) ||
- (always_checksum && S_ISREG(st.st_mode) &&
- memcmp(sum,file->sum,csum_length) == 0))) {
- set_perms(fname,file,&st,1);
- return;
- }
-
- if (dry_run) {
- write_int(f_out,i);
- return;
- }
-
- /* open the file */
- fd = open(fname,O_RDONLY);
-
- if (fd == -1) {
- fprintf(FERROR,"failed to open %s : %s\n",fname,strerror(errno));
- return;
- }
-
- if (st.st_size > 0) {
- buf = map_file(fd,st.st_size);
- } else {
- buf = NULL;
- }
-
- if (verbose > 3)
- fprintf(FERROR,"gen mapped %s of size %d\n",fname,(int)st.st_size);
-
- s = generate_sums(buf,st.st_size,block_size);
-
- if (verbose > 2)
- fprintf(FERROR,"sending sums for %d\n",i);
-
- write_int(f_out,i);
- send_sums(s,f_out);
- write_flush(f_out);
-
- close(fd);
- if (buf) unmap_file(buf);
-
- free_sums(s);
-}
-
+#ifdef SUPPORT_ACLS
+ if (preserve_acls && !S_ISLNK(file->mode) && !ACL_READY(*sxp))
+ get_acl(fname, sxp);
+#endif
+#ifdef SUPPORT_XATTRS
+ if (preserve_xattrs && fnamecmp)
+ set_xattr(fname, file, fnamecmp, sxp);
+ if (am_root < 0)
+ set_stat_xattr(fname, file);
+#endif
-static int receive_data(int f_in,struct map_struct *buf,int fd,char *fname)
-{
- int i,n,remainder,len,count;
- off_t offset = 0;
- off_t offset2;
- char *data;
- static char file_sum1[MD4_SUM_LENGTH];
- static char file_sum2[MD4_SUM_LENGTH];
- char *map=NULL;
-
- count = read_int(f_in);
- n = read_int(f_in);
- remainder = read_int(f_in);
-
- sum_init();
-
- for (i=recv_token(f_in,&data); i != 0; i=recv_token(f_in,&data)) {
- if (i > 0) {
- if (verbose > 3)
- fprintf(FERROR,"data recv %d at %d\n",i,(int)offset);
-
- sum_update(data,i);
-
- if (write_sparse(fd,data,i) != i) {
- fprintf(FERROR,"write failed on %s : %s\n",fname,strerror(errno));
- exit_cleanup(1);
- }
- offset += i;
- } else {
- i = -(i+1);
- offset2 = i*n;
- len = n;
- if (i == count-1 && remainder != 0)
- len = remainder;
-
- if (verbose > 3)
- fprintf(FERROR,"chunk[%d] of size %d at %d offset=%d\n",
- i,len,(int)offset2,(int)offset);
-
- map = map_ptr(buf,offset2,len);
-
- see_token(map, len);
- sum_update(map,len);
-
- if (write_sparse(fd,map,len) != len) {
- fprintf(FERROR,"write failed on %s : %s\n",fname,strerror(errno));
- exit_cleanup(1);
- }
- offset += len;
- }
- }
-
- if (offset > 0 && sparse_end(fd) != 0) {
- fprintf(FERROR,"write failed on %s : %s\n",fname,strerror(errno));
- exit_cleanup(1);
- }
-
- sum_end(file_sum1);
-
- if (remote_version >= 14) {
- read_buf(f_in,file_sum2,MD4_SUM_LENGTH);
- if (verbose > 2)
- fprintf(FERROR,"got file_sum\n");
- if (memcmp(file_sum1,file_sum2,MD4_SUM_LENGTH) != 0)
- return 0;
- }
- return 1;
-}
+ if (!preserve_times || (S_ISDIR(sxp->st.st_mode) && omit_dir_times))
+ flags |= ATTRS_SKIP_MTIME;
+ if (!(flags & ATTRS_SKIP_MTIME)
+ && cmp_time(sxp->st.st_mtime, file->modtime) != 0) {
+ int ret = set_modtime(fname, file->modtime, sxp->st.st_mode);
+ if (ret < 0) {
+ rsyserr(FERROR, errno, "failed to set times on %s",
+ full_fname(fname));
+ goto cleanup;
+ }
+ if (ret == 0) /* ret == 1 if symlink could not be set */
+ updated = 1;
+ }
+ change_uid = am_root && preserve_uid && sxp->st.st_uid != F_UID(file);
+ change_gid = preserve_gid && F_GID(file) != GID_NONE
+ && sxp->st.st_gid != F_GID(file);
+#if !defined HAVE_LCHOWN && !defined CHOWN_MODIFIES_SYMLINK
+ if (S_ISLNK(sxp->st.st_mode))
+ ;
+ else
+#endif
+ if (change_uid || change_gid) {
+ if (verbose > 2) {
+ if (change_uid) {
+ rprintf(FINFO,
+ "set uid of %s from %ld to %ld\n",
+ fname,
+ (long)sxp->st.st_uid, (long)F_UID(file));
+ }
+ if (change_gid) {
+ rprintf(FINFO,
+ "set gid of %s from %ld to %ld\n",
+ fname,
+ (long)sxp->st.st_gid, (long)F_GID(file));
+ }
+ }
+ if (am_root < 0) {
+ ;
+ } else if (do_lchown(fname,
+ change_uid ? F_UID(file) : sxp->st.st_uid,
+ change_gid ? F_GID(file) : sxp->st.st_gid) != 0) {
+ /* shouldn't have attempted to change uid or gid
+ * unless have the privilege */
+ rsyserr(FERROR, errno, "%s %s failed",
+ change_uid ? "chown" : "chgrp",
+ full_fname(fname));
+ goto cleanup;
+ } else
+ /* a lchown had been done - we have to re-stat if the
+ * destination had the setuid or setgid bits set due
+ * to the side effect of the chown call */
+ if (sxp->st.st_mode & (S_ISUID | S_ISGID)) {
+ link_stat(fname, &sxp->st,
+ keep_dirlinks && S_ISDIR(sxp->st.st_mode));
+ }
+ updated = 1;
+ }
-static void delete_one(struct file_struct *f)
-{
- if (!S_ISDIR(f->mode)) {
- if (!dry_run && unlink(f->name) != 0) {
- fprintf(FERROR,"unlink %s : %s\n",f->name,strerror(errno));
- } else if (verbose) {
- fprintf(FERROR,"deleting %s\n",f->name);
- }
- } else {
- if (!dry_run && rmdir(f->name) != 0) {
- if (errno != ENOTEMPTY)
- fprintf(FERROR,"rmdir %s : %s\n",f->name,strerror(errno));
- } else if (verbose) {
- fprintf(FERROR,"deleting directory %s\n",f->name);
- }
- }
-}
+ if (daemon_chmod_modes && !S_ISLNK(new_mode))
+ new_mode = tweak_mode(new_mode, daemon_chmod_modes);
+
+#ifdef SUPPORT_ACLS
+ /* It's OK to call set_acl() now, even for a dir, as the generator
+ * will enable owner-writability using chmod, if necessary.
+ *
+ * If set_acl() changes permission bits in the process of setting
+ * an access ACL, it changes sxp->st.st_mode so we know whether we
+ * need to chmod(). */
+ if (preserve_acls && !S_ISLNK(new_mode) && set_acl(fname, file, sxp) == 0)
+ updated = 1;
+#endif
+#ifdef HAVE_CHMOD
+ if (!BITS_EQUAL(sxp->st.st_mode, new_mode, CHMOD_BITS)) {
+ int ret = am_root < 0 ? 0 : do_chmod(fname, new_mode);
+ if (ret < 0) {
+ rsyserr(FERROR, errno,
+ "failed to set permissions on %s",
+ full_fname(fname));
+ goto cleanup;
+ }
+ if (ret == 0) /* ret == 1 if symlink could not be set */
+ updated = 1;
+ }
+#endif
-static void delete_files(struct file_list *flist)
-{
- struct file_list *local_file_list;
- char *dot=".";
- int i;
-
- if (cvs_exclude)
- add_cvs_excludes();
-
- if (!(local_file_list = send_file_list(-1,1,&dot)))
- return;
-
- for (i=local_file_list->count;i>=0;i--) {
- if (!local_file_list->files[i].name) continue;
- if (-1 == flist_find(flist,&local_file_list->files[i])) {
- delete_one(&local_file_list->files[i]);
- }
- }
+ if (verbose > 1 && flags & ATTRS_REPORT) {
+ if (updated)
+ rprintf(FCLIENT, "%s\n", fname);
+ else
+ rprintf(FCLIENT, "%s is uptodate\n", fname);
+ }
+ cleanup:
+ if (sxp == &sx2) {
+#ifdef SUPPORT_ACLS
+ if (preserve_acls)
+ free_acl(&sx2);
+#endif
+#ifdef SUPPORT_XATTRS
+ if (preserve_xattrs)
+ free_xattr(&sx2);
+#endif
+ }
+ return updated;
}
-static char *cleanup_fname = NULL;
-
-void exit_cleanup(int code)
+RETSIGTYPE sig_int(UNUSED(int val))
{
- if (cleanup_fname)
- unlink(cleanup_fname);
- exit(code);
+ /* KLUGE: if the user hits Ctrl-C while ssh is prompting
+ * for a password, then our cleanup's sending of a SIGUSR1
+ * signal to all our children may kill ssh before it has a
+ * chance to restore the tty settings (i.e. turn echo back
+ * on). By sleeping for a short time, ssh gets a bigger
+ * chance to do the right thing. If child processes are
+ * not ssh waiting for a password, then this tiny delay
+ * shouldn't hurt anything. */
+ msleep(400);
+ exit_cleanup(RERR_SIGNAL);
}
-void sig_int(void)
+/* Finish off a file transfer: renaming the file and setting the file's
+ * attributes (e.g. permissions, ownership, etc.). If partialptr is not
+ * NULL and the robust_rename() call is forced to copy the temp file, we
+ * stage the file into the partial-dir and then rename it into place. */
+void finish_transfer(const char *fname, const char *fnametmp,
+ const char *fnamecmp, const char *partialptr,
+ struct file_struct *file, int ok_to_set_time,
+ int overwriting_basis)
{
- exit_cleanup(1);
-}
-
+ int ret;
-int recv_files(int f_in,struct file_list *flist,char *local_name,int f_gen)
-{
- int fd1,fd2;
- struct stat st;
- char *fname;
- char fnametmp[MAXPATHLEN];
- struct map_struct *buf;
- int i;
- struct file_struct *file;
- int phase=0;
- int recv_ok;
-
- if (verbose > 2) {
- fprintf(FERROR,"recv_files(%d) starting\n",flist->count);
- }
-
- if (recurse && delete_mode && !local_name && flist->count>0) {
- delete_files(flist);
- }
-
- while (1)
- {
- i = read_int(f_in);
- if (i == -1) {
- if (phase==0 && remote_version >= 13) {
- phase++;
- csum_length = SUM_LENGTH;
- if (verbose > 2)
- fprintf(FERROR,"recv_files phase=%d\n",phase);
- write_int(f_gen,-1);
- write_flush(f_gen);
- continue;
+ if (inplace) {
+ if (verbose > 2)
+ rprintf(FINFO, "finishing %s\n", fname);
+ fnametmp = fname;
+ goto do_set_file_attrs;
}
- break;
- }
-
- file = &flist->files[i];
- fname = file->name;
- if (local_name)
- fname = local_name;
+ if (make_backups > 0 && overwriting_basis && !make_backup(fname))
+ return;
- if (dry_run) {
- if (!am_server && verbose)
- printf("%s\n",fname);
- continue;
- }
+ /* Change permissions before putting the file into place. */
+ set_file_attrs(fnametmp, file, NULL, fnamecmp,
+ ok_to_set_time ? 0 : ATTRS_SKIP_MTIME);
- if (verbose > 2)
- fprintf(FERROR,"recv_files(%s)\n",fname);
-
- /* open the file */
- fd1 = open(fname,O_RDONLY);
-
- if (fd1 != -1 && fstat(fd1,&st) != 0) {
- fprintf(FERROR,"fstat %s : %s\n",fname,strerror(errno));
- close(fd1);
- return -1;
- }
-
- if (fd1 != -1 && !S_ISREG(st.st_mode)) {
- fprintf(FERROR,"%s : not a regular file\n",fname);
- close(fd1);
- return -1;
- }
-
- if (fd1 != -1 && st.st_size > 0) {
- buf = map_file(fd1,st.st_size);
+ /* move tmp file over real file */
if (verbose > 2)
- fprintf(FERROR,"recv mapped %s of size %d\n",fname,(int)st.st_size);
- } else {
- buf = NULL;
- }
-
- /* open tmp file */
- sprintf(fnametmp,"%s.XXXXXX",fname);
- if (NULL == mktemp(fnametmp)) {
- fprintf(FERROR,"mktemp %s failed\n",fnametmp);
- return -1;
- }
- fd2 = open(fnametmp,O_WRONLY|O_CREAT,file->mode);
- if (fd2 == -1) {
- fprintf(FERROR,"open %s : %s\n",fnametmp,strerror(errno));
- return -1;
- }
-
- cleanup_fname = fnametmp;
-
- if (!am_server && verbose)
- printf("%s\n",fname);
-
- /* recv file data */
- recv_ok = receive_data(f_in,buf,fd2,fname);
-
- if (fd1 != -1) {
- if (buf) unmap_file(buf);
- close(fd1);
- }
- close(fd2);
-
- if (verbose > 2)
- fprintf(FERROR,"renaming %s to %s\n",fnametmp,fname);
-
- if (make_backups) {
- char fnamebak[MAXPATHLEN];
- sprintf(fnamebak,"%s%s",fname,backup_suffix);
- if (rename(fname,fnamebak) != 0 && errno != ENOENT) {
- fprintf(FERROR,"rename %s %s : %s\n",fname,fnamebak,strerror(errno));
- exit_cleanup(1);
+ rprintf(FINFO, "renaming %s to %s\n", fnametmp, fname);
+ ret = robust_rename(fnametmp, fname, partialptr,
+ file->mode & INITACCESSPERMS);
+ if (ret < 0) {
+ rsyserr(FERROR, errno, "%s %s -> \"%s\"",
+ ret == -2 ? "copy" : "rename",
+ full_fname(fnametmp), fname);
+ do_unlink(fnametmp);
+ return;
+ }
+ if (ret == 0) {
+ /* The file was moved into place (not copied), so it's done. */
+ return;
+ }
+ /* The file was copied, so tweak the perms of the copied file. If it
+ * was copied to partialptr, move it into its final destination. */
+ fnametmp = partialptr ? partialptr : fname;
+
+ do_set_file_attrs:
+ set_file_attrs(fnametmp, file, NULL, fnamecmp,
+ ok_to_set_time ? 0 : ATTRS_SKIP_MTIME);
+
+ if (partialptr) {
+ if (do_rename(fnametmp, fname) < 0) {
+ rsyserr(FERROR, errno, "rename %s -> \"%s\"",
+ full_fname(fnametmp), fname);
+ } else
+ handle_partial_dir(partialptr, PDIR_DELETE);
}
- }
-
- /* move tmp file over real file */
- if (rename(fnametmp,fname) != 0) {
- fprintf(FERROR,"rename %s -> %s : %s\n",
- fnametmp,fname,strerror(errno));
- }
-
- cleanup_fname = NULL;
-
- set_perms(fname,file,NULL,0);
-
- if (!recv_ok) {
- if (verbose > 1)
- fprintf(FERROR,"redoing %s(%d)\n",fname,i);
- if (csum_length == SUM_LENGTH)
- fprintf(FERROR,"ERROR: file corruption in %s\n",fname);
- write_int(f_gen,i);
- }
- }
-
- if (verbose > 2)
- fprintf(FERROR,"recv_files finished\n");
-
- return 0;
}
+struct file_list *flist_for_ndx(int ndx)
+{
+ struct file_list *flist = cur_flist;
+ if (!flist && !(flist = first_flist))
+ return NULL;
-off_t send_files(struct file_list *flist,int f_out,int f_in)
-{
- int fd;
- struct sum_struct *s;
- struct map_struct *buf;
- struct stat st;
- char fname[MAXPATHLEN];
- off_t total=0;
- int i;
- struct file_struct *file;
- int phase = 0;
-
- if (verbose > 2)
- fprintf(FERROR,"send_files starting\n");
-
- setup_nonblocking(f_in,f_out);
-
- while (1)
- {
- i = read_int(f_in);
- if (i == -1) {
- if (phase==0 && remote_version >= 13) {
- phase++;
- csum_length = SUM_LENGTH;
- write_int(f_out,-1);
- write_flush(f_out);
- if (verbose > 2)
- fprintf(FERROR,"send_files phase=%d\n",phase);
- continue;
+ while (ndx < flist->ndx_start) {
+ if (flist == first_flist)
+ return NULL;
+ flist = flist->prev;
+ }
+ while (ndx >= flist->ndx_start + flist->count) {
+ if (!(flist = flist->next))
+ return NULL;
}
- break;
- }
-
- file = &flist->files[i];
-
- fname[0] = 0;
- if (file->dir) {
- strcpy(fname,file->dir);
- strcat(fname,"/");
- }
- strcat(fname,file->name);
-
- if (verbose > 2)
- fprintf(FERROR,"send_files(%d,%s)\n",i,fname);
-
- if (dry_run) {
- if (!am_server && verbose)
- printf("%s\n",fname);
- write_int(f_out,i);
- continue;
- }
-
- s = receive_sums(f_in);
- if (!s) {
- fprintf(FERROR,"receive_sums failed\n");
- return -1;
- }
-
- fd = open(fname,O_RDONLY);
- if (fd == -1) {
- fprintf(FERROR,"send_files failed to open %s: %s\n",
- fname,strerror(errno));
- continue;
- }
-
- /* map the local file */
- if (fstat(fd,&st) != 0) {
- fprintf(FERROR,"fstat failed : %s\n",strerror(errno));
- return -1;
- }
-
- if (st.st_size > 0) {
- buf = map_file(fd,st.st_size);
- } else {
- buf = NULL;
- }
-
- if (verbose > 2)
- fprintf(FERROR,"send_files mapped %s of size %d\n",
- fname,(int)st.st_size);
-
- write_int(f_out,i);
-
- write_int(f_out,s->count);
- write_int(f_out,s->n);
- write_int(f_out,s->remainder);
-
- if (verbose > 2)
- fprintf(FERROR,"calling match_sums %s\n",fname);
-
- if (!am_server && verbose)
- printf("%s\n",fname);
-
- match_sums(f_out,s,buf,st.st_size);
- write_flush(f_out);
-
- if (buf) unmap_file(buf);
- close(fd);
-
- free_sums(s);
-
- if (verbose > 2)
- fprintf(FERROR,"sender finished %s\n",fname);
-
- total += st.st_size;
- }
-
- if (verbose > 2)
- fprintf(FERROR,"send files finished\n");
-
- match_report();
-
- write_int(f_out,-1);
- write_flush(f_out);
-
- return total;
+ return flist;
}
-
-
-void generate_files(int f,struct file_list *flist,char *local_name,int f_recv)
+const char *who_am_i(void)
{
- int i;
- int phase=0;
-
- if (verbose > 2)
- fprintf(FERROR,"generator starting pid=%d count=%d\n",
- (int)getpid(),flist->count);
-
- for (i = 0; i < flist->count; i++) {
- struct file_struct *file = &flist->files[i];
- if (!file->name) continue;
- if (S_ISDIR(file->mode)) {
- if (dry_run) continue;
- if (mkdir(file->name,file->mode) != 0 &&
- errno != EEXIST) {
- fprintf(FERROR,"mkdir %s : %s\n",
- file->name,strerror(errno));
- }
- continue;
- }
- recv_generator(local_name?local_name:file->name,
- flist,i,f);
- }
-
- phase++;
- csum_length = SUM_LENGTH;
- ignore_times=1;
-
- if (verbose > 2)
- fprintf(FERROR,"generate_files phase=%d\n",phase);
-
- write_int(f,-1);
- write_flush(f);
-
- if (remote_version >= 13) {
- 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:file->name,
- flist,i,f);
- }
-
- phase++;
- if (verbose > 2)
- fprintf(FERROR,"generate_files phase=%d\n",phase);
-
- write_int(f,-1);
- write_flush(f);
- }
-
-
- if (verbose > 2)
- fprintf(FERROR,"generator wrote %d\n",write_total());
+ if (am_starting_up)
+ return am_server ? "server" : "client";
+ return am_sender ? "sender" : am_generator ? "generator" : "receiver";
}
-
-
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff