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; | |
28 | ||
29 | ||
0f9c48b1 MP |
30 | /** |
31 | * @file | |
32 | * | |
33 | * The sender gets checksums from the generator, calculates deltas, | |
34 | * and transmits them to the receiver. The sender process runs on the | |
35 | * machine holding the source files. | |
36 | **/ | |
37 | ||
38 | ||
fc0257c9 S |
39 | void read_sum_head(int f, struct sum_struct *sum) |
40 | { | |
41 | extern int remote_version; | |
42 | ||
43 | sum->count = read_int(f); | |
44 | sum->blength = read_int(f); | |
45 | if (remote_version < 27) | |
46 | { | |
47 | sum->s2length = csum_length; | |
48 | } else { | |
e6e3f12f | 49 | sum->s2length = read_int(f); |
fc0257c9 | 50 | } |
e6e3f12f | 51 | sum->remainder = read_int(f); |
fc0257c9 S |
52 | } |
53 | ||
ce8149b6 MP |
54 | /** |
55 | * Receive the checksums for a buffer | |
56 | **/ | |
2f03f956 AT |
57 | static struct sum_struct *receive_sums(int f) |
58 | { | |
59 | struct sum_struct *s; | |
60 | int i; | |
61 | OFF_T offset = 0; | |
62 | ||
63 | s = (struct sum_struct *)malloc(sizeof(*s)); | |
64 | if (!s) out_of_memory("receive_sums"); | |
65 | ||
fc0257c9 S |
66 | read_sum_head(f, s); |
67 | ||
2f03f956 AT |
68 | s->sums = NULL; |
69 | ||
70 | if (verbose > 3) | |
e6e3f12f | 71 | rprintf(FINFO, "count=%ld n=%ld rem=%ld\n", |
fc0257c9 S |
72 | (long) s->count, (long) s->blength, |
73 | (long) s->remainder); | |
2f03f956 | 74 | |
e6e3f12f | 75 | if (s->count == 0) |
2f03f956 AT |
76 | return(s); |
77 | ||
78 | s->sums = (struct sum_buf *)malloc(sizeof(s->sums[0])*s->count); | |
79 | if (!s->sums) out_of_memory("receive_sums"); | |
80 | ||
e6e3f12f | 81 | for (i = 0; i < (int) s->count; i++) { |
2f03f956 | 82 | s->sums[i].sum1 = read_int(f); |
e6e3f12f | 83 | read_buf(f, s->sums[i].sum2, s->s2length); |
2f03f956 AT |
84 | |
85 | s->sums[i].offset = offset; | |
86 | s->sums[i].i = i; | |
87 | ||
a261989c | 88 | if (i == (int) s->count-1 && s->remainder != 0) { |
2f03f956 AT |
89 | s->sums[i].len = s->remainder; |
90 | } else { | |
fc0257c9 | 91 | s->sums[i].len = s->blength; |
2f03f956 AT |
92 | } |
93 | offset += s->sums[i].len; | |
94 | ||
95 | if (verbose > 3) | |
e6e3f12f S |
96 | rprintf(FINFO, "chunk[%d] len=%d offset=%.0f sum1=%08x\n", |
97 | i, s->sums[i].len, (double)s->sums[i].offset, s->sums[i].sum1); | |
2f03f956 AT |
98 | } |
99 | ||
100 | s->flength = offset; | |
101 | ||
102 | return s; | |
103 | } | |
104 | ||
105 | ||
106 | ||
e6e3f12f S |
107 | void send_files(struct file_list *flist, int f_out, int f_in) |
108 | { | |
c1659c79 | 109 | int fd = -1; |
2f03f956 | 110 | struct sum_struct *s; |
c1659c79 | 111 | struct map_struct *buf = NULL; |
2f03f956 | 112 | STRUCT_STAT st; |
e6e3f12f | 113 | char fname[MAXPATHLEN]; |
2f03f956 AT |
114 | int i; |
115 | struct file_struct *file; | |
116 | int phase = 0; | |
e6e3f12f | 117 | extern struct stats stats; |
1b7c47cb | 118 | struct stats initial_stats; |
6902ed17 | 119 | extern int write_batch; /* dw */ |
6902ed17 MP |
120 | extern int read_batch; /* dw */ |
121 | int checksums_match; /* dw */ | |
122 | int buff_len; /* dw */ | |
123 | char buff[CHUNK_SIZE]; /* dw */ | |
124 | int j; /* dw */ | |
125 | int done; /* dw */ | |
2f03f956 AT |
126 | |
127 | if (verbose > 2) | |
e6e3f12f | 128 | rprintf(FINFO, "send_files starting\n"); |
2f03f956 | 129 | |
2f03f956 | 130 | while (1) { |
e6e3f12f | 131 | int offset = 0; |
2f03f956 AT |
132 | |
133 | i = read_int(f_in); | |
134 | if (i == -1) { | |
e6e3f12f | 135 | if (phase == 0) { |
2f03f956 AT |
136 | phase++; |
137 | csum_length = SUM_LENGTH; | |
e6e3f12f | 138 | write_int(f_out, -1); |
2f03f956 | 139 | if (verbose > 2) |
e6e3f12f | 140 | rprintf(FINFO, "send_files phase=%d\n", phase); |
2f03f956 AT |
141 | continue; |
142 | } | |
143 | break; | |
144 | } | |
145 | ||
146 | if (i < 0 || i >= flist->count) { | |
e6e3f12f | 147 | rprintf(FERROR, "Invalid file index %d (count=%d)\n", |
2f03f956 | 148 | i, flist->count); |
65417579 | 149 | exit_cleanup(RERR_PROTOCOL); |
2f03f956 AT |
150 | } |
151 | ||
152 | file = flist->files[i]; | |
153 | ||
154 | stats.num_transferred_files++; | |
155 | stats.total_transferred_size += file->length; | |
156 | ||
157 | fname[0] = 0; | |
158 | if (file->basedir) { | |
e6e3f12f | 159 | strlcpy(fname, file->basedir, MAXPATHLEN); |
2f03f956 AT |
160 | if (strlen(fname) == MAXPATHLEN-1) { |
161 | io_error = 1; | |
162 | rprintf(FERROR, "send_files failed on long-named directory %s\n", | |
163 | fname); | |
164 | return; | |
165 | } | |
e6e3f12f | 166 | strlcat(fname, "/", MAXPATHLEN); |
2f03f956 AT |
167 | offset = strlen(file->basedir)+1; |
168 | } | |
e6e3f12f S |
169 | strlcat(fname, f_name(file), MAXPATHLEN); |
170 | ||
171 | if (verbose > 2) | |
172 | rprintf(FINFO, "send_files(%d, %s)\n", i, fname); | |
173 | ||
174 | if (dry_run) { | |
42d4edc0 S |
175 | if (!am_server && verbose) { /* log transfer */ |
176 | rprintf(FINFO, "%s\n", fname+offset); | |
11a5a3c7 | 177 | } |
e6e3f12f | 178 | write_int(f_out, i); |
2f03f956 AT |
179 | continue; |
180 | } | |
181 | ||
1b7c47cb AT |
182 | initial_stats = stats; |
183 | ||
2f03f956 AT |
184 | s = receive_sums(f_in); |
185 | if (!s) { | |
186 | io_error = 1; | |
e6e3f12f | 187 | rprintf(FERROR, "receive_sums failed\n"); |
2f03f956 AT |
188 | return; |
189 | } | |
76f79ba7 MP |
190 | |
191 | if (write_batch) | |
e6e3f12f S |
192 | write_batch_csum_info(&i, flist->count, s); |
193 | ||
6902ed17 | 194 | if (!read_batch) { |
c1659c79 MP |
195 | fd = do_open(fname, O_RDONLY, 0); |
196 | if (fd == -1) { | |
197 | io_error = 1; | |
e6e3f12f S |
198 | rprintf(FERROR, "send_files failed to open %s: %s\n", |
199 | fname, strerror(errno)); | |
c1659c79 MP |
200 | free_sums(s); |
201 | continue; | |
202 | } | |
e6e3f12f | 203 | |
c1659c79 | 204 | /* map the local file */ |
e6e3f12f | 205 | if (do_fstat(fd, &st) != 0) { |
c1659c79 | 206 | io_error = 1; |
e6e3f12f | 207 | rprintf(FERROR, "fstat failed : %s\n", strerror(errno)); |
c1659c79 MP |
208 | free_sums(s); |
209 | close(fd); | |
210 | return; | |
211 | } | |
e6e3f12f | 212 | |
c1659c79 | 213 | if (st.st_size > 0) { |
e6e3f12f | 214 | buf = map_file(fd, st.st_size); |
c1659c79 MP |
215 | } else { |
216 | buf = NULL; | |
217 | } | |
e6e3f12f | 218 | |
c1659c79 | 219 | if (verbose > 2) |
e6e3f12f S |
220 | rprintf(FINFO, "send_files mapped %s of size %.0f\n", |
221 | fname, (double)st.st_size); | |
222 | ||
223 | write_int(f_out, i); | |
11a5a3c7 | 224 | |
c1659c79 | 225 | if (write_batch) |
e6e3f12f | 226 | write_batch_delta_file((char *)&i, sizeof(i)); |
6902ed17 | 227 | |
fc0257c9 | 228 | write_sum_head(f_out, s); |
6902ed17 | 229 | } |
e6e3f12f S |
230 | |
231 | if (verbose > 2 && !read_batch) | |
232 | rprintf(FINFO, "calling match_sums %s\n", fname); | |
233 | ||
42d4edc0 S |
234 | if (!am_server && verbose) { /* log transfer */ |
235 | rprintf(FINFO, "%s\n", fname+offset); | |
11a5a3c7 | 236 | } |
83fff1aa AT |
237 | |
238 | set_compression(fname); | |
1b7c47cb | 239 | |
e6e3f12f S |
240 | if (read_batch) { /* dw */ |
241 | /* read checksums originally computed on sender side */ | |
242 | read_batch_csum_info(i, s, &checksums_match); | |
243 | if (checksums_match) { | |
244 | read_batch_delta_file( (char *) &j, sizeof(int) ); | |
245 | if (j != i) { /* if flist index entries don't match*/ | |
246 | rprintf(FINFO, "index mismatch in send_files\n"); | |
247 | rprintf(FINFO, "read index = %d flist ndx = %d\n", j, i); | |
248 | close_batch_delta_file(); | |
249 | close_batch_csums_file(); | |
250 | exit_cleanup(1); | |
251 | } else { | |
252 | write_int(f_out, j); | |
253 | write_sum_head(f_out, s); | |
254 | done = 0; | |
255 | while (!done) { | |
256 | read_batch_delta_file( (char *) &buff_len, sizeof(int) ); | |
257 | write_int(f_out, buff_len); | |
258 | if (buff_len == 0) { | |
259 | done = 1; | |
260 | } else { | |
261 | if (buff_len > 0) { | |
262 | read_batch_delta_file(buff, buff_len); | |
263 | write_buf(f_out, buff, buff_len); | |
264 | } | |
265 | } | |
266 | } /* end while */ | |
267 | read_batch_delta_file( buff, MD4_SUM_LENGTH); | |
268 | write_buf(f_out, buff, MD4_SUM_LENGTH); | |
269 | ||
270 | } /* j=i */ | |
271 | } else { /* not checksum match */ | |
272 | rprintf (FINFO, "readbatch & checksums don't match\n"); | |
273 | rprintf (FINFO, "filename=%s is being skipped\n", fname); | |
274 | continue; | |
275 | } | |
276 | } else { | |
277 | match_sums(f_out, s, buf, st.st_size); | |
278 | log_send(file, &initial_stats); | |
279 | } | |
6902ed17 MP |
280 | |
281 | if (!read_batch) { /* dw */ | |
e6e3f12f S |
282 | if (buf) unmap_file(buf); |
283 | close(fd); | |
6902ed17 | 284 | } |
e6e3f12f | 285 | |
2f03f956 | 286 | free_sums(s); |
e6e3f12f | 287 | |
2f03f956 | 288 | if (verbose > 2) |
e6e3f12f | 289 | rprintf(FINFO, "sender finished %s\n", fname); |
2f03f956 AT |
290 | } |
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); |
6902ed17 | 298 | if (write_batch || read_batch) { /* dw */ |
e6e3f12f S |
299 | close_batch_csums_file(); |
300 | close_batch_delta_file(); | |
6902ed17 MP |
301 | } |
302 | ||
2f03f956 AT |
303 | } |
304 | ||
305 | ||
306 | ||
307 | ||
308 |