Commit | Line | Data |
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e6e3f12f | 1 | /* |
2f03f956 AT |
2 | Copyright (C) Andrew Tridgell 1996 |
3 | Copyright (C) Paul Mackerras 1996 | |
e6e3f12f | 4 | |
2f03f956 AT |
5 | This program is free software; you can redistribute it and/or modify |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
e6e3f12f | 9 | |
2f03f956 AT |
10 | This program is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
e6e3f12f | 14 | |
2f03f956 AT |
15 | You should have received a copy of the GNU General Public License |
16 | along with this program; if not, write to the Free Software | |
17 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
18 | */ | |
19 | ||
20 | #include "rsync.h" | |
21 | ||
22 | extern int verbose; | |
2f03f956 AT |
23 | extern int csum_length; |
24 | extern struct stats stats; | |
25 | extern int io_error; | |
26 | extern int dry_run; | |
27 | extern int am_server; | |
d6631cf3 WD |
28 | extern int am_daemon; |
29 | extern int protocol_version; | |
53f8519a | 30 | extern int updating_basis_file; |
8b115ac8 | 31 | extern int make_backups; |
53f8519a | 32 | extern int inplace; |
a3221d2a | 33 | extern struct stats stats; |
2f03f956 AT |
34 | |
35 | ||
0f9c48b1 MP |
36 | /** |
37 | * @file | |
38 | * | |
39 | * The sender gets checksums from the generator, calculates deltas, | |
40 | * and transmits them to the receiver. The sender process runs on the | |
41 | * machine holding the source files. | |
42 | **/ | |
fc0257c9 | 43 | |
ce8149b6 MP |
44 | /** |
45 | * Receive the checksums for a buffer | |
46 | **/ | |
2f03f956 AT |
47 | static struct sum_struct *receive_sums(int f) |
48 | { | |
49 | struct sum_struct *s; | |
eed47b6b | 50 | size_t i; |
2f03f956 AT |
51 | OFF_T offset = 0; |
52 | ||
a3221d2a WD |
53 | if (!(s = new(struct sum_struct))) |
54 | out_of_memory("receive_sums"); | |
2f03f956 | 55 | |
fc0257c9 S |
56 | read_sum_head(f, s); |
57 | ||
2f03f956 AT |
58 | s->sums = NULL; |
59 | ||
da9d12f5 | 60 | if (verbose > 3) { |
6c495e0d WD |
61 | rprintf(FINFO, "count=%.0f n=%ld rem=%ld\n", |
62 | (double)s->count, (long)s->blength, (long)s->remainder); | |
da9d12f5 | 63 | } |
2f03f956 | 64 | |
e6e3f12f | 65 | if (s->count == 0) |
2f03f956 AT |
66 | return(s); |
67 | ||
a3221d2a WD |
68 | if (!(s->sums = new_array(struct sum_buf, s->count))) |
69 | out_of_memory("receive_sums"); | |
2f03f956 | 70 | |
eed47b6b | 71 | for (i = 0; i < s->count; i++) { |
2f03f956 | 72 | s->sums[i].sum1 = read_int(f); |
e6e3f12f | 73 | read_buf(f, s->sums[i].sum2, s->s2length); |
2f03f956 AT |
74 | |
75 | s->sums[i].offset = offset; | |
a3221d2a | 76 | s->sums[i].flags = 0; |
2f03f956 | 77 | |
eed47b6b | 78 | if (i == s->count-1 && s->remainder != 0) |
2f03f956 | 79 | s->sums[i].len = s->remainder; |
a3221d2a | 80 | else |
fc0257c9 | 81 | s->sums[i].len = s->blength; |
2f03f956 AT |
82 | offset += s->sums[i].len; |
83 | ||
a3221d2a WD |
84 | if (verbose > 3) { |
85 | rprintf(FINFO, | |
86 | "chunk[%d] len=%d offset=%.0f sum1=%08x\n", | |
87 | i, s->sums[i].len, (double)s->sums[i].offset, | |
88 | s->sums[i].sum1); | |
89 | } | |
2f03f956 AT |
90 | } |
91 | ||
92 | s->flength = offset; | |
93 | ||
94 | return s; | |
95 | } | |
96 | ||
97 | ||
98 | ||
e6e3f12f S |
99 | void send_files(struct file_list *flist, int f_out, int f_in) |
100 | { | |
c1659c79 | 101 | int fd = -1; |
2f03f956 | 102 | struct sum_struct *s; |
41cc97ae | 103 | struct map_struct *mbuf = NULL; |
2f03f956 | 104 | STRUCT_STAT st; |
ecc81fce | 105 | char *fname2, fname[MAXPATHLEN]; |
2f03f956 AT |
106 | int i; |
107 | struct file_struct *file; | |
108 | int phase = 0; | |
1b7c47cb | 109 | struct stats initial_stats; |
8b115ac8 | 110 | int save_make_backups = make_backups; |
64c3523a | 111 | int j; |
2f03f956 AT |
112 | |
113 | if (verbose > 2) | |
e6e3f12f | 114 | rprintf(FINFO, "send_files starting\n"); |
2f03f956 | 115 | |
2f03f956 | 116 | while (1) { |
3fef5364 | 117 | unsigned int offset; |
2f03f956 AT |
118 | |
119 | i = read_int(f_in); | |
120 | if (i == -1) { | |
e6e3f12f | 121 | if (phase == 0) { |
2f03f956 AT |
122 | phase++; |
123 | csum_length = SUM_LENGTH; | |
e6e3f12f | 124 | write_int(f_out, -1); |
2f03f956 | 125 | if (verbose > 2) |
e6e3f12f | 126 | rprintf(FINFO, "send_files phase=%d\n", phase); |
9715c589 WD |
127 | /* For inplace: redo phase turns off the backup |
128 | * flag so that we do a regular inplace send. */ | |
8b115ac8 | 129 | make_backups = 0; |
2f03f956 AT |
130 | continue; |
131 | } | |
132 | break; | |
133 | } | |
134 | ||
135 | if (i < 0 || i >= flist->count) { | |
e6e3f12f | 136 | rprintf(FERROR, "Invalid file index %d (count=%d)\n", |
2f03f956 | 137 | i, flist->count); |
65417579 | 138 | exit_cleanup(RERR_PROTOCOL); |
2f03f956 AT |
139 | } |
140 | ||
b951e023 WD |
141 | if (inplace && protocol_version >= 29) { |
142 | uchar fnamecmp_type = read_byte(f_in); | |
143 | updating_basis_file = fnamecmp_type == FNAMECMP_FNAME; | |
144 | } else | |
145 | updating_basis_file = inplace && !make_backups; | |
146 | ||
2f03f956 | 147 | file = flist->files[i]; |
afd72c78 WD |
148 | if (S_ISDIR(file->mode)) { |
149 | rprintf(FERROR, "[%s] got index of directory: %d\n", | |
150 | who_am_i(), i); | |
151 | exit_cleanup(RERR_PROTOCOL); | |
152 | } | |
2f03f956 | 153 | |
97feb557 | 154 | stats.current_file_index = i; |
2f03f956 AT |
155 | stats.num_transferred_files++; |
156 | stats.total_transferred_size += file->length; | |
157 | ||
2b136663 | 158 | if (file->dir.root) { |
421c2a24 | 159 | /* N.B. We're sure that this fits, so offset is OK. */ |
2b136663 | 160 | offset = strlcpy(fname, file->dir.root, sizeof fname); |
421c2a24 WD |
161 | if (!offset || fname[offset-1] != '/') |
162 | fname[offset++] = '/'; | |
3fef5364 WD |
163 | } else |
164 | offset = 0; | |
ecc81fce | 165 | fname2 = f_name_to(file, fname + offset); |
e6e3f12f S |
166 | |
167 | if (verbose > 2) | |
168 | rprintf(FINFO, "send_files(%d, %s)\n", i, fname); | |
169 | ||
170 | if (dry_run) { | |
ecc81fce WD |
171 | if (!am_server && verbose) /* log the transfer */ |
172 | rprintf(FINFO, "%s\n", safe_fname(fname2)); | |
e6e3f12f | 173 | write_int(f_out, i); |
2f03f956 AT |
174 | continue; |
175 | } | |
176 | ||
1b7c47cb AT |
177 | initial_stats = stats; |
178 | ||
efa95a18 | 179 | if (!(s = receive_sums(f_in))) { |
06c28400 | 180 | io_error |= IOERR_GENERAL; |
e6e3f12f | 181 | rprintf(FERROR, "receive_sums failed\n"); |
2f03f956 AT |
182 | return; |
183 | } | |
76f79ba7 | 184 | |
b9f592fb WD |
185 | fd = do_open(fname, O_RDONLY, 0); |
186 | if (fd == -1) { | |
187 | if (errno == ENOENT) { | |
188 | enum logcode c = am_daemon | |
189 | && protocol_version < 28 ? FERROR | |
190 | : FINFO; | |
191 | io_error |= IOERR_VANISHED; | |
192 | rprintf(c, "file has vanished: %s\n", | |
193 | full_fname(fname)); | |
194 | } else { | |
06c28400 | 195 | io_error |= IOERR_GENERAL; |
b9f592fb WD |
196 | rsyserr(FERROR, errno, |
197 | "send_files failed to open %s", | |
198 | full_fname(fname)); | |
41cc97ae | 199 | } |
b9f592fb WD |
200 | free_sums(s); |
201 | continue; | |
202 | } | |
e6e3f12f | 203 | |
b9f592fb WD |
204 | /* map the local file */ |
205 | if (do_fstat(fd, &st) != 0) { | |
206 | io_error |= IOERR_GENERAL; | |
207 | rsyserr(FERROR, errno, "fstat failed"); | |
208 | free_sums(s); | |
209 | close(fd); | |
210 | return; | |
211 | } | |
11a5a3c7 | 212 | |
96d910c7 | 213 | if (st.st_size) { |
9b919d59 WD |
214 | int32 read_size = MAX(s->blength * 3, MAX_MAP_SIZE); |
215 | mbuf = map_file(fd, st.st_size, read_size, s->blength); | |
96d910c7 WD |
216 | } else |
217 | mbuf = NULL; | |
6902ed17 | 218 | |
b9f592fb WD |
219 | if (verbose > 2) { |
220 | rprintf(FINFO, "send_files mapped %s of size %.0f\n", | |
ecc81fce | 221 | safe_fname(fname), (double)st.st_size); |
6902ed17 | 222 | } |
e6e3f12f | 223 | |
b9f592fb WD |
224 | write_int(f_out, i); |
225 | write_sum_head(f_out, s); | |
226 | ||
ecc81fce WD |
227 | if (verbose > 2) { |
228 | rprintf(FINFO, "calling match_sums %s\n", | |
229 | safe_fname(fname)); | |
11a5a3c7 | 230 | } |
83fff1aa | 231 | |
ecc81fce WD |
232 | if (!am_server && verbose) /* log the transfer */ |
233 | rprintf(FINFO, "%s\n", safe_fname(fname2)); | |
234 | ||
83fff1aa | 235 | set_compression(fname); |
1b7c47cb | 236 | |
b9f592fb WD |
237 | match_sums(f_out, s, mbuf, st.st_size); |
238 | log_send(file, &initial_stats); | |
6902ed17 | 239 | |
b9f592fb WD |
240 | if (mbuf) { |
241 | j = unmap_file(mbuf); | |
242 | if (j) { | |
243 | io_error |= IOERR_GENERAL; | |
244 | rsyserr(FERROR, j, | |
245 | "read errors mapping %s", | |
246 | full_fname(fname)); | |
6a7cc46c | 247 | } |
6902ed17 | 248 | } |
b9f592fb | 249 | close(fd); |
e6e3f12f | 250 | |
2f03f956 | 251 | free_sums(s); |
e6e3f12f | 252 | |
ecc81fce WD |
253 | if (verbose > 2) { |
254 | rprintf(FINFO, "sender finished %s\n", | |
255 | safe_fname(fname)); | |
256 | } | |
2f03f956 | 257 | } |
8b115ac8 | 258 | make_backups = save_make_backups; |
2f03f956 AT |
259 | |
260 | if (verbose > 2) | |
e6e3f12f | 261 | rprintf(FINFO, "send files finished\n"); |
2f03f956 AT |
262 | |
263 | match_report(); | |
264 | ||
e6e3f12f | 265 | write_int(f_out, -1); |
2f03f956 | 266 | } |