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; | |
2f03f956 AT |
30 | |
31 | ||
0f9c48b1 MP |
32 | /** |
33 | * @file | |
34 | * | |
35 | * The sender gets checksums from the generator, calculates deltas, | |
36 | * and transmits them to the receiver. The sender process runs on the | |
37 | * machine holding the source files. | |
38 | **/ | |
fc0257c9 S |
39 | void read_sum_head(int f, struct sum_struct *sum) |
40 | { | |
fc0257c9 S |
41 | sum->count = read_int(f); |
42 | sum->blength = read_int(f); | |
dfad66a8 | 43 | if (protocol_version < 27) { |
fc0257c9 | 44 | sum->s2length = csum_length; |
dfad66a8 | 45 | } else { |
e6e3f12f | 46 | sum->s2length = read_int(f); |
dfad66a8 | 47 | if (sum->s2length > MD4_SUM_LENGTH) { |
ef5075e0 WD |
48 | rprintf(FERROR, "Invalid checksum length %ld\n", |
49 | (long)sum->s2length); | |
dfad66a8 S |
50 | exit_cleanup(RERR_PROTOCOL); |
51 | } | |
52 | } | |
e6e3f12f | 53 | sum->remainder = read_int(f); |
fc0257c9 S |
54 | } |
55 | ||
ce8149b6 MP |
56 | /** |
57 | * Receive the checksums for a buffer | |
58 | **/ | |
2f03f956 AT |
59 | static struct sum_struct *receive_sums(int f) |
60 | { | |
61 | struct sum_struct *s; | |
62 | int i; | |
63 | OFF_T offset = 0; | |
64 | ||
58cadc86 | 65 | s = new(struct sum_struct); |
2f03f956 AT |
66 | if (!s) out_of_memory("receive_sums"); |
67 | ||
fc0257c9 S |
68 | read_sum_head(f, s); |
69 | ||
2f03f956 AT |
70 | s->sums = NULL; |
71 | ||
da9d12f5 WD |
72 | if (verbose > 3) { |
73 | rprintf(FINFO, "count=%ld n=%u rem=%u\n", | |
74 | (long)s->count, s->blength, s->remainder); | |
75 | } | |
2f03f956 | 76 | |
e6e3f12f | 77 | if (s->count == 0) |
2f03f956 AT |
78 | return(s); |
79 | ||
58cadc86 | 80 | s->sums = new_array(struct sum_buf, s->count); |
2f03f956 AT |
81 | if (!s->sums) out_of_memory("receive_sums"); |
82 | ||
e6e3f12f | 83 | for (i = 0; i < (int) s->count; i++) { |
2f03f956 | 84 | s->sums[i].sum1 = read_int(f); |
e6e3f12f | 85 | read_buf(f, s->sums[i].sum2, s->s2length); |
2f03f956 AT |
86 | |
87 | s->sums[i].offset = offset; | |
88 | s->sums[i].i = i; | |
89 | ||
a261989c | 90 | if (i == (int) s->count-1 && s->remainder != 0) { |
2f03f956 AT |
91 | s->sums[i].len = s->remainder; |
92 | } else { | |
fc0257c9 | 93 | s->sums[i].len = s->blength; |
2f03f956 AT |
94 | } |
95 | offset += s->sums[i].len; | |
96 | ||
97 | if (verbose > 3) | |
e6e3f12f S |
98 | rprintf(FINFO, "chunk[%d] len=%d offset=%.0f sum1=%08x\n", |
99 | i, s->sums[i].len, (double)s->sums[i].offset, s->sums[i].sum1); | |
2f03f956 AT |
100 | } |
101 | ||
102 | s->flength = offset; | |
103 | ||
104 | return s; | |
105 | } | |
106 | ||
107 | ||
108 | ||
e6e3f12f S |
109 | void send_files(struct file_list *flist, int f_out, int f_in) |
110 | { | |
c1659c79 | 111 | int fd = -1; |
2f03f956 | 112 | struct sum_struct *s; |
41cc97ae | 113 | struct map_struct *mbuf = NULL; |
2f03f956 | 114 | STRUCT_STAT st; |
e6e3f12f | 115 | char fname[MAXPATHLEN]; |
2f03f956 AT |
116 | int i; |
117 | struct file_struct *file; | |
118 | int phase = 0; | |
e6e3f12f | 119 | extern struct stats stats; |
1b7c47cb | 120 | struct stats initial_stats; |
64c3523a | 121 | int j; |
2f03f956 AT |
122 | |
123 | if (verbose > 2) | |
e6e3f12f | 124 | rprintf(FINFO, "send_files starting\n"); |
2f03f956 | 125 | |
2f03f956 | 126 | while (1) { |
3fef5364 | 127 | unsigned int offset; |
2f03f956 AT |
128 | |
129 | i = read_int(f_in); | |
130 | if (i == -1) { | |
e6e3f12f | 131 | if (phase == 0) { |
2f03f956 AT |
132 | phase++; |
133 | csum_length = SUM_LENGTH; | |
e6e3f12f | 134 | write_int(f_out, -1); |
2f03f956 | 135 | if (verbose > 2) |
e6e3f12f | 136 | rprintf(FINFO, "send_files phase=%d\n", phase); |
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 | ||
148 | file = flist->files[i]; | |
149 | ||
97feb557 | 150 | stats.current_file_index = i; |
2f03f956 AT |
151 | stats.num_transferred_files++; |
152 | stats.total_transferred_size += file->length; | |
153 | ||
2f03f956 | 154 | if (file->basedir) { |
421c2a24 WD |
155 | /* N.B. We're sure that this fits, so offset is OK. */ |
156 | offset = strlcpy(fname, file->basedir, sizeof fname); | |
157 | if (!offset || fname[offset-1] != '/') | |
158 | fname[offset++] = '/'; | |
3fef5364 WD |
159 | } else |
160 | offset = 0; | |
161 | f_name_to(file, fname + offset); | |
e6e3f12f S |
162 | |
163 | if (verbose > 2) | |
164 | rprintf(FINFO, "send_files(%d, %s)\n", i, fname); | |
165 | ||
166 | if (dry_run) { | |
9c513d67 | 167 | if (!am_server && verbose) { |
42d4edc0 | 168 | rprintf(FINFO, "%s\n", fname+offset); |
11a5a3c7 | 169 | } |
e6e3f12f | 170 | write_int(f_out, i); |
2f03f956 AT |
171 | continue; |
172 | } | |
173 | ||
1b7c47cb AT |
174 | initial_stats = stats; |
175 | ||
2f03f956 AT |
176 | s = receive_sums(f_in); |
177 | if (!s) { | |
06c28400 | 178 | io_error |= IOERR_GENERAL; |
e6e3f12f | 179 | rprintf(FERROR, "receive_sums failed\n"); |
2f03f956 AT |
180 | return; |
181 | } | |
76f79ba7 | 182 | |
b9f592fb WD |
183 | fd = do_open(fname, O_RDONLY, 0); |
184 | if (fd == -1) { | |
185 | if (errno == ENOENT) { | |
186 | enum logcode c = am_daemon | |
187 | && protocol_version < 28 ? FERROR | |
188 | : FINFO; | |
189 | io_error |= IOERR_VANISHED; | |
190 | rprintf(c, "file has vanished: %s\n", | |
191 | full_fname(fname)); | |
192 | } else { | |
06c28400 | 193 | io_error |= IOERR_GENERAL; |
b9f592fb WD |
194 | rsyserr(FERROR, errno, |
195 | "send_files failed to open %s", | |
196 | full_fname(fname)); | |
41cc97ae | 197 | } |
b9f592fb WD |
198 | free_sums(s); |
199 | continue; | |
200 | } | |
e6e3f12f | 201 | |
b9f592fb WD |
202 | /* map the local file */ |
203 | if (do_fstat(fd, &st) != 0) { | |
204 | io_error |= IOERR_GENERAL; | |
205 | rsyserr(FERROR, errno, "fstat failed"); | |
206 | free_sums(s); | |
207 | close(fd); | |
208 | return; | |
209 | } | |
11a5a3c7 | 210 | |
b9f592fb | 211 | mbuf = st.st_size ? map_file(fd, st.st_size) : NULL; |
6902ed17 | 212 | |
b9f592fb WD |
213 | if (verbose > 2) { |
214 | rprintf(FINFO, "send_files mapped %s of size %.0f\n", | |
215 | fname, (double)st.st_size); | |
6902ed17 | 216 | } |
e6e3f12f | 217 | |
b9f592fb WD |
218 | write_int(f_out, i); |
219 | write_sum_head(f_out, s); | |
220 | ||
221 | if (verbose > 2) | |
e6e3f12f S |
222 | rprintf(FINFO, "calling match_sums %s\n", fname); |
223 | ||
9c513d67 | 224 | if (!am_server && verbose) { |
42d4edc0 | 225 | rprintf(FINFO, "%s\n", fname+offset); |
11a5a3c7 | 226 | } |
83fff1aa AT |
227 | |
228 | set_compression(fname); | |
1b7c47cb | 229 | |
b9f592fb WD |
230 | match_sums(f_out, s, mbuf, st.st_size); |
231 | log_send(file, &initial_stats); | |
6902ed17 | 232 | |
b9f592fb WD |
233 | if (mbuf) { |
234 | j = unmap_file(mbuf); | |
235 | if (j) { | |
236 | io_error |= IOERR_GENERAL; | |
237 | rsyserr(FERROR, j, | |
238 | "read errors mapping %s", | |
239 | full_fname(fname)); | |
6a7cc46c | 240 | } |
6902ed17 | 241 | } |
b9f592fb | 242 | close(fd); |
e6e3f12f | 243 | |
2f03f956 | 244 | free_sums(s); |
e6e3f12f | 245 | |
2f03f956 | 246 | if (verbose > 2) |
e6e3f12f | 247 | rprintf(FINFO, "sender finished %s\n", fname); |
2f03f956 AT |
248 | } |
249 | ||
250 | if (verbose > 2) | |
e6e3f12f | 251 | rprintf(FINFO, "send files finished\n"); |
2f03f956 AT |
252 | |
253 | match_report(); | |
254 | ||
e6e3f12f | 255 | write_int(f_out, -1); |
2f03f956 | 256 | } |