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; | |
8b115ac8 | 30 | extern int make_backups; |
a3221d2a | 31 | extern struct stats stats; |
2f03f956 AT |
32 | |
33 | ||
0f9c48b1 MP |
34 | /** |
35 | * @file | |
36 | * | |
37 | * The sender gets checksums from the generator, calculates deltas, | |
38 | * and transmits them to the receiver. The sender process runs on the | |
39 | * machine holding the source files. | |
40 | **/ | |
fc0257c9 | 41 | |
ce8149b6 MP |
42 | /** |
43 | * Receive the checksums for a buffer | |
44 | **/ | |
2f03f956 AT |
45 | static struct sum_struct *receive_sums(int f) |
46 | { | |
47 | struct sum_struct *s; | |
48 | int i; | |
49 | OFF_T offset = 0; | |
50 | ||
a3221d2a WD |
51 | if (!(s = new(struct sum_struct))) |
52 | out_of_memory("receive_sums"); | |
2f03f956 | 53 | |
fc0257c9 S |
54 | read_sum_head(f, s); |
55 | ||
2f03f956 AT |
56 | s->sums = NULL; |
57 | ||
da9d12f5 | 58 | if (verbose > 3) { |
6c495e0d WD |
59 | rprintf(FINFO, "count=%.0f n=%ld rem=%ld\n", |
60 | (double)s->count, (long)s->blength, (long)s->remainder); | |
da9d12f5 | 61 | } |
2f03f956 | 62 | |
e6e3f12f | 63 | if (s->count == 0) |
2f03f956 AT |
64 | return(s); |
65 | ||
a3221d2a WD |
66 | if (!(s->sums = new_array(struct sum_buf, s->count))) |
67 | out_of_memory("receive_sums"); | |
2f03f956 | 68 | |
a3221d2a | 69 | for (i = 0; i < (int)s->count; i++) { |
2f03f956 | 70 | s->sums[i].sum1 = read_int(f); |
e6e3f12f | 71 | read_buf(f, s->sums[i].sum2, s->s2length); |
2f03f956 AT |
72 | |
73 | s->sums[i].offset = offset; | |
a3221d2a | 74 | s->sums[i].flags = 0; |
2f03f956 | 75 | |
a3221d2a | 76 | if (i == (int)s->count-1 && s->remainder != 0) |
2f03f956 | 77 | s->sums[i].len = s->remainder; |
a3221d2a | 78 | else |
fc0257c9 | 79 | s->sums[i].len = s->blength; |
2f03f956 AT |
80 | offset += s->sums[i].len; |
81 | ||
a3221d2a WD |
82 | if (verbose > 3) { |
83 | rprintf(FINFO, | |
84 | "chunk[%d] len=%d offset=%.0f sum1=%08x\n", | |
85 | i, s->sums[i].len, (double)s->sums[i].offset, | |
86 | s->sums[i].sum1); | |
87 | } | |
2f03f956 AT |
88 | } |
89 | ||
90 | s->flength = offset; | |
91 | ||
92 | return s; | |
93 | } | |
94 | ||
95 | ||
96 | ||
e6e3f12f S |
97 | void send_files(struct file_list *flist, int f_out, int f_in) |
98 | { | |
c1659c79 | 99 | int fd = -1; |
2f03f956 | 100 | struct sum_struct *s; |
41cc97ae | 101 | struct map_struct *mbuf = NULL; |
2f03f956 | 102 | STRUCT_STAT st; |
ecc81fce | 103 | char *fname2, fname[MAXPATHLEN]; |
2f03f956 AT |
104 | int i; |
105 | struct file_struct *file; | |
106 | int phase = 0; | |
1b7c47cb | 107 | struct stats initial_stats; |
8b115ac8 | 108 | int save_make_backups = make_backups; |
64c3523a | 109 | int j; |
2f03f956 AT |
110 | |
111 | if (verbose > 2) | |
e6e3f12f | 112 | rprintf(FINFO, "send_files starting\n"); |
2f03f956 | 113 | |
2f03f956 | 114 | while (1) { |
3fef5364 | 115 | unsigned int offset; |
2f03f956 AT |
116 | |
117 | i = read_int(f_in); | |
118 | if (i == -1) { | |
e6e3f12f | 119 | if (phase == 0) { |
2f03f956 AT |
120 | phase++; |
121 | csum_length = SUM_LENGTH; | |
e6e3f12f | 122 | write_int(f_out, -1); |
2f03f956 | 123 | if (verbose > 2) |
e6e3f12f | 124 | rprintf(FINFO, "send_files phase=%d\n", phase); |
9715c589 WD |
125 | /* For inplace: redo phase turns off the backup |
126 | * flag so that we do a regular inplace send. */ | |
8b115ac8 | 127 | make_backups = 0; |
2f03f956 AT |
128 | continue; |
129 | } | |
130 | break; | |
131 | } | |
132 | ||
133 | if (i < 0 || i >= flist->count) { | |
e6e3f12f | 134 | rprintf(FERROR, "Invalid file index %d (count=%d)\n", |
2f03f956 | 135 | i, flist->count); |
65417579 | 136 | exit_cleanup(RERR_PROTOCOL); |
2f03f956 AT |
137 | } |
138 | ||
139 | file = flist->files[i]; | |
140 | ||
97feb557 | 141 | stats.current_file_index = i; |
2f03f956 AT |
142 | stats.num_transferred_files++; |
143 | stats.total_transferred_size += file->length; | |
144 | ||
2f03f956 | 145 | if (file->basedir) { |
421c2a24 WD |
146 | /* N.B. We're sure that this fits, so offset is OK. */ |
147 | offset = strlcpy(fname, file->basedir, sizeof fname); | |
148 | if (!offset || fname[offset-1] != '/') | |
149 | fname[offset++] = '/'; | |
3fef5364 WD |
150 | } else |
151 | offset = 0; | |
ecc81fce | 152 | fname2 = f_name_to(file, fname + offset); |
e6e3f12f S |
153 | |
154 | if (verbose > 2) | |
155 | rprintf(FINFO, "send_files(%d, %s)\n", i, fname); | |
156 | ||
157 | if (dry_run) { | |
ecc81fce WD |
158 | if (!am_server && verbose) /* log the transfer */ |
159 | rprintf(FINFO, "%s\n", safe_fname(fname2)); | |
e6e3f12f | 160 | write_int(f_out, i); |
2f03f956 AT |
161 | continue; |
162 | } | |
163 | ||
1b7c47cb AT |
164 | initial_stats = stats; |
165 | ||
efa95a18 | 166 | if (!(s = receive_sums(f_in))) { |
06c28400 | 167 | io_error |= IOERR_GENERAL; |
e6e3f12f | 168 | rprintf(FERROR, "receive_sums failed\n"); |
2f03f956 AT |
169 | return; |
170 | } | |
76f79ba7 | 171 | |
b9f592fb WD |
172 | fd = do_open(fname, O_RDONLY, 0); |
173 | if (fd == -1) { | |
174 | if (errno == ENOENT) { | |
175 | enum logcode c = am_daemon | |
176 | && protocol_version < 28 ? FERROR | |
177 | : FINFO; | |
178 | io_error |= IOERR_VANISHED; | |
179 | rprintf(c, "file has vanished: %s\n", | |
180 | full_fname(fname)); | |
181 | } else { | |
06c28400 | 182 | io_error |= IOERR_GENERAL; |
b9f592fb WD |
183 | rsyserr(FERROR, errno, |
184 | "send_files failed to open %s", | |
185 | full_fname(fname)); | |
41cc97ae | 186 | } |
b9f592fb WD |
187 | free_sums(s); |
188 | continue; | |
189 | } | |
e6e3f12f | 190 | |
b9f592fb WD |
191 | /* map the local file */ |
192 | if (do_fstat(fd, &st) != 0) { | |
193 | io_error |= IOERR_GENERAL; | |
194 | rsyserr(FERROR, errno, "fstat failed"); | |
195 | free_sums(s); | |
196 | close(fd); | |
197 | return; | |
198 | } | |
11a5a3c7 | 199 | |
96d910c7 | 200 | if (st.st_size) { |
9b919d59 WD |
201 | int32 read_size = MAX(s->blength * 3, MAX_MAP_SIZE); |
202 | mbuf = map_file(fd, st.st_size, read_size, s->blength); | |
96d910c7 WD |
203 | } else |
204 | mbuf = NULL; | |
6902ed17 | 205 | |
b9f592fb WD |
206 | if (verbose > 2) { |
207 | rprintf(FINFO, "send_files mapped %s of size %.0f\n", | |
ecc81fce | 208 | safe_fname(fname), (double)st.st_size); |
6902ed17 | 209 | } |
e6e3f12f | 210 | |
b9f592fb WD |
211 | write_int(f_out, i); |
212 | write_sum_head(f_out, s); | |
213 | ||
ecc81fce WD |
214 | if (verbose > 2) { |
215 | rprintf(FINFO, "calling match_sums %s\n", | |
216 | safe_fname(fname)); | |
11a5a3c7 | 217 | } |
83fff1aa | 218 | |
ecc81fce WD |
219 | if (!am_server && verbose) /* log the transfer */ |
220 | rprintf(FINFO, "%s\n", safe_fname(fname2)); | |
221 | ||
83fff1aa | 222 | set_compression(fname); |
1b7c47cb | 223 | |
b9f592fb WD |
224 | match_sums(f_out, s, mbuf, st.st_size); |
225 | log_send(file, &initial_stats); | |
6902ed17 | 226 | |
b9f592fb WD |
227 | if (mbuf) { |
228 | j = unmap_file(mbuf); | |
229 | if (j) { | |
230 | io_error |= IOERR_GENERAL; | |
231 | rsyserr(FERROR, j, | |
232 | "read errors mapping %s", | |
233 | full_fname(fname)); | |
6a7cc46c | 234 | } |
6902ed17 | 235 | } |
b9f592fb | 236 | close(fd); |
e6e3f12f | 237 | |
2f03f956 | 238 | free_sums(s); |
e6e3f12f | 239 | |
ecc81fce WD |
240 | if (verbose > 2) { |
241 | rprintf(FINFO, "sender finished %s\n", | |
242 | safe_fname(fname)); | |
243 | } | |
2f03f956 | 244 | } |
8b115ac8 | 245 | make_backups = save_make_backups; |
2f03f956 AT |
246 | |
247 | if (verbose > 2) | |
e6e3f12f | 248 | rprintf(FINFO, "send files finished\n"); |
2f03f956 AT |
249 | |
250 | match_report(); | |
251 | ||
e6e3f12f | 252 | write_int(f_out, -1); |
2f03f956 | 253 | } |