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 | { | |
d04e9c51 | 41 | extern int protocol_version; |
fc0257c9 S |
42 | |
43 | sum->count = read_int(f); | |
44 | sum->blength = read_int(f); | |
d04e9c51 | 45 | if (protocol_version < 27) |
fc0257c9 | 46 | sum->s2length = csum_length; |
d04e9c51 | 47 | else |
e6e3f12f | 48 | sum->s2length = read_int(f); |
e6e3f12f | 49 | sum->remainder = read_int(f); |
fc0257c9 S |
50 | } |
51 | ||
ce8149b6 MP |
52 | /** |
53 | * Receive the checksums for a buffer | |
54 | **/ | |
2f03f956 AT |
55 | static struct sum_struct *receive_sums(int f) |
56 | { | |
57 | struct sum_struct *s; | |
58 | int i; | |
59 | OFF_T offset = 0; | |
60 | ||
61 | s = (struct sum_struct *)malloc(sizeof(*s)); | |
62 | if (!s) out_of_memory("receive_sums"); | |
63 | ||
fc0257c9 S |
64 | read_sum_head(f, s); |
65 | ||
2f03f956 AT |
66 | s->sums = NULL; |
67 | ||
68 | if (verbose > 3) | |
e6e3f12f | 69 | rprintf(FINFO, "count=%ld n=%ld rem=%ld\n", |
fc0257c9 S |
70 | (long) s->count, (long) s->blength, |
71 | (long) s->remainder); | |
2f03f956 | 72 | |
e6e3f12f | 73 | if (s->count == 0) |
2f03f956 AT |
74 | return(s); |
75 | ||
76 | s->sums = (struct sum_buf *)malloc(sizeof(s->sums[0])*s->count); | |
77 | if (!s->sums) out_of_memory("receive_sums"); | |
78 | ||
e6e3f12f | 79 | for (i = 0; i < (int) s->count; i++) { |
2f03f956 | 80 | s->sums[i].sum1 = read_int(f); |
e6e3f12f | 81 | read_buf(f, s->sums[i].sum2, s->s2length); |
2f03f956 AT |
82 | |
83 | s->sums[i].offset = offset; | |
84 | s->sums[i].i = i; | |
85 | ||
a261989c | 86 | if (i == (int) s->count-1 && s->remainder != 0) { |
2f03f956 AT |
87 | s->sums[i].len = s->remainder; |
88 | } else { | |
fc0257c9 | 89 | s->sums[i].len = s->blength; |
2f03f956 AT |
90 | } |
91 | offset += s->sums[i].len; | |
92 | ||
93 | if (verbose > 3) | |
e6e3f12f S |
94 | rprintf(FINFO, "chunk[%d] len=%d offset=%.0f sum1=%08x\n", |
95 | i, s->sums[i].len, (double)s->sums[i].offset, s->sums[i].sum1); | |
2f03f956 AT |
96 | } |
97 | ||
98 | s->flength = offset; | |
99 | ||
100 | return s; | |
101 | } | |
102 | ||
103 | ||
104 | ||
e6e3f12f S |
105 | void send_files(struct file_list *flist, int f_out, int f_in) |
106 | { | |
c1659c79 | 107 | int fd = -1; |
2f03f956 | 108 | struct sum_struct *s; |
c1659c79 | 109 | struct map_struct *buf = NULL; |
2f03f956 | 110 | STRUCT_STAT st; |
e6e3f12f | 111 | char fname[MAXPATHLEN]; |
2f03f956 AT |
112 | int i; |
113 | struct file_struct *file; | |
114 | int phase = 0; | |
e6e3f12f | 115 | extern struct stats stats; |
1b7c47cb | 116 | struct stats initial_stats; |
6902ed17 | 117 | extern int write_batch; /* dw */ |
6902ed17 MP |
118 | extern int read_batch; /* dw */ |
119 | int checksums_match; /* dw */ | |
120 | int buff_len; /* dw */ | |
121 | char buff[CHUNK_SIZE]; /* dw */ | |
122 | int j; /* dw */ | |
123 | int done; /* dw */ | |
2f03f956 AT |
124 | |
125 | if (verbose > 2) | |
e6e3f12f | 126 | rprintf(FINFO, "send_files starting\n"); |
2f03f956 | 127 | |
2f03f956 | 128 | while (1) { |
e6e3f12f | 129 | int offset = 0; |
2f03f956 AT |
130 | |
131 | i = read_int(f_in); | |
132 | if (i == -1) { | |
e6e3f12f | 133 | if (phase == 0) { |
2f03f956 AT |
134 | phase++; |
135 | csum_length = SUM_LENGTH; | |
e6e3f12f | 136 | write_int(f_out, -1); |
2f03f956 | 137 | if (verbose > 2) |
e6e3f12f | 138 | rprintf(FINFO, "send_files phase=%d\n", phase); |
2f03f956 AT |
139 | continue; |
140 | } | |
141 | break; | |
142 | } | |
143 | ||
144 | if (i < 0 || i >= flist->count) { | |
e6e3f12f | 145 | rprintf(FERROR, "Invalid file index %d (count=%d)\n", |
2f03f956 | 146 | i, flist->count); |
65417579 | 147 | exit_cleanup(RERR_PROTOCOL); |
2f03f956 AT |
148 | } |
149 | ||
150 | file = flist->files[i]; | |
151 | ||
152 | stats.num_transferred_files++; | |
153 | stats.total_transferred_size += file->length; | |
154 | ||
155 | fname[0] = 0; | |
156 | if (file->basedir) { | |
e6e3f12f | 157 | strlcpy(fname, file->basedir, MAXPATHLEN); |
2f03f956 AT |
158 | if (strlen(fname) == MAXPATHLEN-1) { |
159 | io_error = 1; | |
160 | rprintf(FERROR, "send_files failed on long-named directory %s\n", | |
ea42541f | 161 | full_fname(fname)); |
2f03f956 AT |
162 | return; |
163 | } | |
e6e3f12f | 164 | strlcat(fname, "/", MAXPATHLEN); |
2f03f956 AT |
165 | offset = strlen(file->basedir)+1; |
166 | } | |
e6e3f12f S |
167 | strlcat(fname, f_name(file), MAXPATHLEN); |
168 | ||
169 | if (verbose > 2) | |
170 | rprintf(FINFO, "send_files(%d, %s)\n", i, fname); | |
171 | ||
172 | if (dry_run) { | |
42d4edc0 S |
173 | if (!am_server && verbose) { /* log transfer */ |
174 | rprintf(FINFO, "%s\n", fname+offset); | |
11a5a3c7 | 175 | } |
e6e3f12f | 176 | write_int(f_out, i); |
2f03f956 AT |
177 | continue; |
178 | } | |
179 | ||
1b7c47cb AT |
180 | initial_stats = stats; |
181 | ||
2f03f956 AT |
182 | s = receive_sums(f_in); |
183 | if (!s) { | |
184 | io_error = 1; | |
e6e3f12f | 185 | rprintf(FERROR, "receive_sums failed\n"); |
2f03f956 AT |
186 | return; |
187 | } | |
76f79ba7 MP |
188 | |
189 | if (write_batch) | |
e6e3f12f S |
190 | write_batch_csum_info(&i, flist->count, s); |
191 | ||
6902ed17 | 192 | if (!read_batch) { |
c1659c79 MP |
193 | fd = do_open(fname, O_RDONLY, 0); |
194 | if (fd == -1) { | |
195 | io_error = 1; | |
e6e3f12f | 196 | rprintf(FERROR, "send_files failed to open %s: %s\n", |
ea42541f | 197 | full_fname(fname), strerror(errno)); |
c1659c79 MP |
198 | free_sums(s); |
199 | continue; | |
200 | } | |
e6e3f12f | 201 | |
c1659c79 | 202 | /* map the local file */ |
e6e3f12f | 203 | if (do_fstat(fd, &st) != 0) { |
c1659c79 | 204 | io_error = 1; |
ea42541f | 205 | rprintf(FERROR, "fstat failed: %s\n", strerror(errno)); |
c1659c79 MP |
206 | free_sums(s); |
207 | close(fd); | |
208 | return; | |
209 | } | |
e6e3f12f | 210 | |
c1659c79 | 211 | if (st.st_size > 0) { |
e6e3f12f | 212 | buf = map_file(fd, st.st_size); |
c1659c79 MP |
213 | } else { |
214 | buf = NULL; | |
215 | } | |
e6e3f12f | 216 | |
c1659c79 | 217 | if (verbose > 2) |
e6e3f12f S |
218 | rprintf(FINFO, "send_files mapped %s of size %.0f\n", |
219 | fname, (double)st.st_size); | |
220 | ||
221 | write_int(f_out, i); | |
11a5a3c7 | 222 | |
c1659c79 | 223 | if (write_batch) |
e6e3f12f | 224 | write_batch_delta_file((char *)&i, sizeof(i)); |
6902ed17 | 225 | |
fc0257c9 | 226 | write_sum_head(f_out, s); |
6902ed17 | 227 | } |
e6e3f12f S |
228 | |
229 | if (verbose > 2 && !read_batch) | |
230 | rprintf(FINFO, "calling match_sums %s\n", fname); | |
231 | ||
42d4edc0 S |
232 | if (!am_server && verbose) { /* log transfer */ |
233 | rprintf(FINFO, "%s\n", fname+offset); | |
11a5a3c7 | 234 | } |
83fff1aa AT |
235 | |
236 | set_compression(fname); | |
1b7c47cb | 237 | |
e6e3f12f S |
238 | if (read_batch) { /* dw */ |
239 | /* read checksums originally computed on sender side */ | |
240 | read_batch_csum_info(i, s, &checksums_match); | |
241 | if (checksums_match) { | |
242 | read_batch_delta_file( (char *) &j, sizeof(int) ); | |
243 | if (j != i) { /* if flist index entries don't match*/ | |
244 | rprintf(FINFO, "index mismatch in send_files\n"); | |
245 | rprintf(FINFO, "read index = %d flist ndx = %d\n", j, i); | |
246 | close_batch_delta_file(); | |
247 | close_batch_csums_file(); | |
248 | exit_cleanup(1); | |
249 | } else { | |
250 | write_int(f_out, j); | |
251 | write_sum_head(f_out, s); | |
252 | done = 0; | |
253 | while (!done) { | |
254 | read_batch_delta_file( (char *) &buff_len, sizeof(int) ); | |
255 | write_int(f_out, buff_len); | |
256 | if (buff_len == 0) { | |
257 | done = 1; | |
258 | } else { | |
259 | if (buff_len > 0) { | |
260 | read_batch_delta_file(buff, buff_len); | |
261 | write_buf(f_out, buff, buff_len); | |
262 | } | |
263 | } | |
264 | } /* end while */ | |
265 | read_batch_delta_file( buff, MD4_SUM_LENGTH); | |
266 | write_buf(f_out, buff, MD4_SUM_LENGTH); | |
267 | ||
268 | } /* j=i */ | |
269 | } else { /* not checksum match */ | |
270 | rprintf (FINFO, "readbatch & checksums don't match\n"); | |
271 | rprintf (FINFO, "filename=%s is being skipped\n", fname); | |
272 | continue; | |
273 | } | |
274 | } else { | |
275 | match_sums(f_out, s, buf, st.st_size); | |
276 | log_send(file, &initial_stats); | |
277 | } | |
6902ed17 MP |
278 | |
279 | if (!read_batch) { /* dw */ | |
6a7cc46c S |
280 | if (buf) { |
281 | j = unmap_file(buf); | |
282 | if (j) { | |
283 | io_error = 1; | |
284 | rprintf(FERROR, | |
285 | "read errors mapping %s: (%d) %s\n", | |
286 | full_fname(fname), | |
287 | j, | |
288 | strerror(j)); | |
289 | } | |
290 | } | |
e6e3f12f | 291 | close(fd); |
6902ed17 | 292 | } |
e6e3f12f | 293 | |
2f03f956 | 294 | free_sums(s); |
e6e3f12f | 295 | |
2f03f956 | 296 | if (verbose > 2) |
e6e3f12f | 297 | rprintf(FINFO, "sender finished %s\n", fname); |
2f03f956 AT |
298 | } |
299 | ||
300 | if (verbose > 2) | |
e6e3f12f | 301 | rprintf(FINFO, "send files finished\n"); |
2f03f956 AT |
302 | |
303 | match_report(); | |
304 | ||
e6e3f12f | 305 | write_int(f_out, -1); |
6902ed17 | 306 | if (write_batch || read_batch) { /* dw */ |
e6e3f12f S |
307 | close_batch_csums_file(); |
308 | close_batch_delta_file(); | |
6902ed17 MP |
309 | } |
310 | ||
2f03f956 AT |
311 | } |
312 | ||
313 | ||
314 | ||
315 | ||
316 |