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; | |
7f37167d | 23 | extern int dry_run; |
8a9cfb24 | 24 | extern int log_before_transfer; |
7f37167d WD |
25 | extern int log_format_has_i; |
26 | extern int daemon_log_format_has_i; | |
27 | extern int am_server; | |
28 | extern int am_daemon; | |
2f03f956 AT |
29 | extern int csum_length; |
30 | extern struct stats stats; | |
31 | extern int io_error; | |
d6631cf3 | 32 | extern int protocol_version; |
53f8519a | 33 | extern int updating_basis_file; |
8b115ac8 | 34 | extern int make_backups; |
8a9cfb24 | 35 | extern int do_progress; |
53f8519a | 36 | extern int inplace; |
8a9cfb24 | 37 | extern char *log_format; |
a3221d2a | 38 | extern struct stats stats; |
2f03f956 AT |
39 | |
40 | ||
0f9c48b1 MP |
41 | /** |
42 | * @file | |
43 | * | |
44 | * The sender gets checksums from the generator, calculates deltas, | |
45 | * and transmits them to the receiver. The sender process runs on the | |
46 | * machine holding the source files. | |
47 | **/ | |
fc0257c9 | 48 | |
ce8149b6 MP |
49 | /** |
50 | * Receive the checksums for a buffer | |
51 | **/ | |
2f03f956 AT |
52 | static struct sum_struct *receive_sums(int f) |
53 | { | |
54 | struct sum_struct *s; | |
a1cbe76e | 55 | int32 i; |
2f03f956 AT |
56 | OFF_T offset = 0; |
57 | ||
a3221d2a WD |
58 | if (!(s = new(struct sum_struct))) |
59 | out_of_memory("receive_sums"); | |
2f03f956 | 60 | |
fc0257c9 S |
61 | read_sum_head(f, s); |
62 | ||
2f03f956 AT |
63 | s->sums = NULL; |
64 | ||
da9d12f5 | 65 | if (verbose > 3) { |
6c495e0d WD |
66 | rprintf(FINFO, "count=%.0f n=%ld rem=%ld\n", |
67 | (double)s->count, (long)s->blength, (long)s->remainder); | |
da9d12f5 | 68 | } |
2f03f956 | 69 | |
e6e3f12f | 70 | if (s->count == 0) |
2f03f956 AT |
71 | return(s); |
72 | ||
a3221d2a WD |
73 | if (!(s->sums = new_array(struct sum_buf, s->count))) |
74 | out_of_memory("receive_sums"); | |
2f03f956 | 75 | |
eed47b6b | 76 | for (i = 0; i < s->count; i++) { |
2f03f956 | 77 | s->sums[i].sum1 = read_int(f); |
e6e3f12f | 78 | read_buf(f, s->sums[i].sum2, s->s2length); |
2f03f956 AT |
79 | |
80 | s->sums[i].offset = offset; | |
a3221d2a | 81 | s->sums[i].flags = 0; |
2f03f956 | 82 | |
eed47b6b | 83 | if (i == s->count-1 && s->remainder != 0) |
2f03f956 | 84 | s->sums[i].len = s->remainder; |
a3221d2a | 85 | else |
fc0257c9 | 86 | s->sums[i].len = s->blength; |
2f03f956 AT |
87 | offset += s->sums[i].len; |
88 | ||
a3221d2a WD |
89 | if (verbose > 3) { |
90 | rprintf(FINFO, | |
91 | "chunk[%d] len=%d offset=%.0f sum1=%08x\n", | |
92 | i, s->sums[i].len, (double)s->sums[i].offset, | |
93 | s->sums[i].sum1); | |
94 | } | |
2f03f956 AT |
95 | } |
96 | ||
97 | s->flength = offset; | |
98 | ||
99 | return s; | |
100 | } | |
101 | ||
102 | ||
103 | ||
e6e3f12f S |
104 | void send_files(struct file_list *flist, int f_out, int f_in) |
105 | { | |
c1659c79 | 106 | int fd = -1; |
2f03f956 | 107 | struct sum_struct *s; |
41cc97ae | 108 | struct map_struct *mbuf = NULL; |
2f03f956 | 109 | STRUCT_STAT st; |
ecc81fce | 110 | char *fname2, fname[MAXPATHLEN]; |
8a9cfb24 | 111 | int iflags; |
2f03f956 AT |
112 | struct file_struct *file; |
113 | int phase = 0; | |
1b7c47cb | 114 | struct stats initial_stats; |
8b115ac8 | 115 | int save_make_backups = make_backups; |
7f37167d WD |
116 | int itemizing = am_daemon ? daemon_log_format_has_i |
117 | : !am_server && log_format_has_i; | |
8a9cfb24 | 118 | int i, j; |
2f03f956 AT |
119 | |
120 | if (verbose > 2) | |
e6e3f12f | 121 | rprintf(FINFO, "send_files starting\n"); |
2f03f956 | 122 | |
2f03f956 | 123 | while (1) { |
3fef5364 | 124 | unsigned int offset; |
2f03f956 AT |
125 | |
126 | i = read_int(f_in); | |
127 | if (i == -1) { | |
e6e3f12f | 128 | if (phase == 0) { |
2f03f956 AT |
129 | phase++; |
130 | csum_length = SUM_LENGTH; | |
e6e3f12f | 131 | write_int(f_out, -1); |
2f03f956 | 132 | if (verbose > 2) |
e6e3f12f | 133 | rprintf(FINFO, "send_files phase=%d\n", phase); |
9715c589 WD |
134 | /* For inplace: redo phase turns off the backup |
135 | * flag so that we do a regular inplace send. */ | |
8b115ac8 | 136 | make_backups = 0; |
2f03f956 AT |
137 | continue; |
138 | } | |
139 | break; | |
140 | } | |
141 | ||
142 | if (i < 0 || i >= flist->count) { | |
e6e3f12f | 143 | rprintf(FERROR, "Invalid file index %d (count=%d)\n", |
2f03f956 | 144 | i, flist->count); |
65417579 | 145 | exit_cleanup(RERR_PROTOCOL); |
2f03f956 AT |
146 | } |
147 | ||
8a9cfb24 | 148 | file = flist->files[i]; |
7f37167d WD |
149 | if (file->dir.root) { |
150 | /* N.B. We're sure that this fits, so offset is OK. */ | |
151 | offset = strlcpy(fname, file->dir.root, sizeof fname); | |
152 | if (!offset || fname[offset-1] != '/') | |
153 | fname[offset++] = '/'; | |
154 | } else | |
155 | offset = 0; | |
156 | fname2 = f_name_to(file, fname + offset); | |
157 | ||
158 | if (verbose > 2) | |
159 | rprintf(FINFO, "send_files(%d, %s)\n", i, fname); | |
8a9cfb24 | 160 | |
8a832465 | 161 | if (protocol_version >= 29) { |
742be97c | 162 | iflags = read_shortint(f_in); |
8a9cfb24 | 163 | if (!(iflags & ITEM_UPDATING) || !S_ISREG(file->mode)) { |
7f37167d WD |
164 | int see_item = itemizing && (iflags || verbose > 1); |
165 | write_int(f_out, i); | |
166 | write_shortint(f_out, iflags); | |
8a9cfb24 | 167 | if (am_server) { |
7f37167d | 168 | if (am_daemon && !dry_run && see_item) |
9118a09c | 169 | log_send(file, &stats, iflags); |
7f37167d | 170 | } else if (see_item || iflags & ITEM_UPDATING |
e844be4e WD |
171 | || (S_ISDIR(file->mode) |
172 | && iflags & ITEM_REPORT_TIME)) | |
9118a09c | 173 | log_send(file, &stats, iflags); |
8a9cfb24 WD |
174 | continue; |
175 | } | |
176 | } else | |
177 | iflags = ITEM_UPDATING | ITEM_MISSING_DATA; | |
178 | ||
b951e023 WD |
179 | if (inplace && protocol_version >= 29) { |
180 | uchar fnamecmp_type = read_byte(f_in); | |
181 | updating_basis_file = fnamecmp_type == FNAMECMP_FNAME; | |
182 | } else | |
183 | updating_basis_file = inplace && !make_backups; | |
184 | ||
8a9cfb24 WD |
185 | if (!S_ISREG(file->mode)) { |
186 | rprintf(FERROR, "[%s] got index of non-regular file: %d\n", | |
afd72c78 WD |
187 | who_am_i(), i); |
188 | exit_cleanup(RERR_PROTOCOL); | |
189 | } | |
2f03f956 | 190 | |
97feb557 | 191 | stats.current_file_index = i; |
2f03f956 AT |
192 | stats.num_transferred_files++; |
193 | stats.total_transferred_size += file->length; | |
194 | ||
a8ed4958 | 195 | if (dry_run) { /* log the transfer */ |
8a832465 | 196 | if (!am_server && log_format) |
8a9cfb24 | 197 | log_send(file, &stats, iflags); |
e6e3f12f | 198 | write_int(f_out, i); |
e844be4e | 199 | if (protocol_version >= 29) |
742be97c | 200 | write_shortint(f_out, iflags); |
2f03f956 AT |
201 | continue; |
202 | } | |
203 | ||
1b7c47cb AT |
204 | initial_stats = stats; |
205 | ||
efa95a18 | 206 | if (!(s = receive_sums(f_in))) { |
06c28400 | 207 | io_error |= IOERR_GENERAL; |
e6e3f12f | 208 | rprintf(FERROR, "receive_sums failed\n"); |
2f03f956 AT |
209 | return; |
210 | } | |
76f79ba7 | 211 | |
b9f592fb WD |
212 | fd = do_open(fname, O_RDONLY, 0); |
213 | if (fd == -1) { | |
214 | if (errno == ENOENT) { | |
215 | enum logcode c = am_daemon | |
216 | && protocol_version < 28 ? FERROR | |
217 | : FINFO; | |
218 | io_error |= IOERR_VANISHED; | |
219 | rprintf(c, "file has vanished: %s\n", | |
220 | full_fname(fname)); | |
221 | } else { | |
06c28400 | 222 | io_error |= IOERR_GENERAL; |
b9f592fb WD |
223 | rsyserr(FERROR, errno, |
224 | "send_files failed to open %s", | |
225 | full_fname(fname)); | |
41cc97ae | 226 | } |
b9f592fb WD |
227 | free_sums(s); |
228 | continue; | |
229 | } | |
e6e3f12f | 230 | |
b9f592fb WD |
231 | /* map the local file */ |
232 | if (do_fstat(fd, &st) != 0) { | |
233 | io_error |= IOERR_GENERAL; | |
234 | rsyserr(FERROR, errno, "fstat failed"); | |
235 | free_sums(s); | |
236 | close(fd); | |
237 | return; | |
238 | } | |
11a5a3c7 | 239 | |
96d910c7 | 240 | if (st.st_size) { |
9b919d59 WD |
241 | int32 read_size = MAX(s->blength * 3, MAX_MAP_SIZE); |
242 | mbuf = map_file(fd, st.st_size, read_size, s->blength); | |
96d910c7 WD |
243 | } else |
244 | mbuf = NULL; | |
6902ed17 | 245 | |
b9f592fb WD |
246 | if (verbose > 2) { |
247 | rprintf(FINFO, "send_files mapped %s of size %.0f\n", | |
ecc81fce | 248 | safe_fname(fname), (double)st.st_size); |
6902ed17 | 249 | } |
e6e3f12f | 250 | |
b9f592fb | 251 | write_int(f_out, i); |
e844be4e | 252 | if (protocol_version >= 29) |
742be97c | 253 | write_shortint(f_out, iflags); |
b9f592fb WD |
254 | write_sum_head(f_out, s); |
255 | ||
ecc81fce WD |
256 | if (verbose > 2) { |
257 | rprintf(FINFO, "calling match_sums %s\n", | |
258 | safe_fname(fname)); | |
11a5a3c7 | 259 | } |
83fff1aa | 260 | |
8a9cfb24 WD |
261 | if (log_before_transfer) |
262 | log_send(file, &initial_stats, iflags); | |
8a832465 | 263 | else if (!am_server && verbose && do_progress) |
ecc81fce WD |
264 | rprintf(FINFO, "%s\n", safe_fname(fname2)); |
265 | ||
83fff1aa | 266 | set_compression(fname); |
1b7c47cb | 267 | |
b9f592fb | 268 | match_sums(f_out, s, mbuf, st.st_size); |
8a9cfb24 WD |
269 | if (!log_before_transfer) |
270 | log_send(file, &initial_stats, iflags); | |
6902ed17 | 271 | |
b9f592fb WD |
272 | if (mbuf) { |
273 | j = unmap_file(mbuf); | |
274 | if (j) { | |
275 | io_error |= IOERR_GENERAL; | |
276 | rsyserr(FERROR, j, | |
277 | "read errors mapping %s", | |
278 | full_fname(fname)); | |
6a7cc46c | 279 | } |
6902ed17 | 280 | } |
b9f592fb | 281 | close(fd); |
e6e3f12f | 282 | |
2f03f956 | 283 | free_sums(s); |
e6e3f12f | 284 | |
ecc81fce WD |
285 | if (verbose > 2) { |
286 | rprintf(FINFO, "sender finished %s\n", | |
287 | safe_fname(fname)); | |
288 | } | |
2f03f956 | 289 | } |
8b115ac8 | 290 | make_backups = save_make_backups; |
2f03f956 AT |
291 | |
292 | if (verbose > 2) | |
e6e3f12f | 293 | rprintf(FINFO, "send files finished\n"); |
2f03f956 AT |
294 | |
295 | match_report(); | |
296 | ||
e6e3f12f | 297 | write_int(f_out, -1); |
2f03f956 | 298 | } |