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Fix misplaced parens on getnameinfo() call.
[rsync/qnx.git] / log.c
blobf842e552862541b45d9a94b0bab92ef582c8b872
1 /*
2 * Logging and utility functions.
3 *
4 * Copyright (C) 1998-2001 Andrew Tridgell <tridge@samba.org>
5 * Copyright (C) 2000-2001 Martin Pool <mbp@samba.org>
6 * Copyright (C) 2003-2009 Wayne Davison
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, visit the http://fsf.org website.
20 */
21
22 #include "rsync.h"
23 #include "itypes.h"
24 #include "inums.h"
25
26 extern int dry_run;
27 extern int am_daemon;
28 extern int am_server;
29 extern int am_sender;
30 extern int am_generator;
31 extern int local_server;
32 extern int quiet;
33 extern int module_id;
34 extern int checksum_len;
35 extern int allow_8bit_chars;
36 extern int protocol_version;
37 extern int always_checksum;
38 extern int preserve_times;
39 extern int msgs2stderr;
40 extern int stdout_format_has_i;
41 extern int stdout_format_has_o_or_i;
42 extern int logfile_format_has_i;
43 extern int logfile_format_has_o_or_i;
44 extern int receiver_symlink_times;
45 extern int64 total_data_written;
46 extern int64 total_data_read;
47 extern mode_t orig_umask;
48 extern char *auth_user;
49 extern char *stdout_format;
50 extern char *logfile_format;
51 extern char *logfile_name;
52 #ifdef ICONV_CONST
53 extern iconv_t ic_chck;
54 #endif
55 #ifdef ICONV_OPTION
56 extern iconv_t ic_recv;
57 #endif
58 extern char curr_dir[MAXPATHLEN];
59 extern char *full_module_path;
60 extern unsigned int module_dirlen;
61 extern char sender_file_sum[MAX_DIGEST_LEN];
62 extern const char undetermined_hostname[];
63
64 static int log_initialised;
65 static int logfile_was_closed;
66 static FILE *logfile_fp;
67 struct stats stats;
68
69 int got_xfer_error = 0;
70 int output_needs_newline = 0;
71 int send_msgs_to_gen = 0;
72
73 static int64 initial_data_written;
74 static int64 initial_data_read;
75
76 struct {
77 int code;
78 char const *name;
79 } const rerr_names[] = {
80 { RERR_SYNTAX , "syntax or usage error" },
81 { RERR_PROTOCOL , "protocol incompatibility" },
82 { RERR_FILESELECT , "errors selecting input/output files, dirs" },
83 { RERR_UNSUPPORTED, "requested action not supported" },
84 { RERR_STARTCLIENT, "error starting client-server protocol" },
85 { RERR_SOCKETIO , "error in socket IO" },
86 { RERR_FILEIO , "error in file IO" },
87 { RERR_STREAMIO , "error in rsync protocol data stream" },
88 { RERR_MESSAGEIO , "errors with program diagnostics" },
89 { RERR_IPC , "error in IPC code" },
90 { RERR_CRASHED , "sibling process crashed" },
91 { RERR_TERMINATED , "sibling process terminated abnormally" },
92 { RERR_SIGNAL1 , "received SIGUSR1" },
93 { RERR_SIGNAL , "received SIGINT, SIGTERM, or SIGHUP" },
94 { RERR_WAITCHILD , "waitpid() failed" },
95 { RERR_MALLOC , "error allocating core memory buffers" },
96 { RERR_PARTIAL , "some files/attrs were not transferred (see previous errors)" },
97 { RERR_VANISHED , "some files vanished before they could be transferred" },
98 { RERR_DEL_LIMIT , "the --max-delete limit stopped deletions" },
99 { RERR_TIMEOUT , "timeout in data send/receive" },
100 { RERR_CONTIMEOUT , "timeout waiting for daemon connection" },
101 { RERR_CMD_FAILED , "remote shell failed" },
102 { RERR_CMD_KILLED , "remote shell killed" },
103 { RERR_CMD_RUN , "remote command could not be run" },
104 { RERR_CMD_NOTFOUND,"remote command not found" },
105 { 0, NULL }
106 };
107
108 /*
109 * Map from rsync error code to name, or return NULL.
110 */
111 static char const *rerr_name(int code)
112 {
113 int i;
114 for (i = 0; rerr_names[i].name; i++) {
115 if (rerr_names[i].code == code)
116 return rerr_names[i].name;
117 }
118 return NULL;
119 }
120
121 static void logit(int priority, const char *buf)
122 {
123 if (logfile_was_closed)
124 logfile_reopen();
125 if (logfile_fp) {
126 fprintf(logfile_fp, "%s [%d] %s",
127 timestring(time(NULL)), (int)getpid(), buf);
128 fflush(logfile_fp);
129 } else {
130 syslog(priority, "%s", buf);
131 }
132 }
133
134 static void syslog_init()
135 {
136 static int been_here = 0;
137 int options = LOG_PID;
138
139 if (been_here)
140 return;
141 been_here = 1;
142
143 #ifdef LOG_NDELAY
144 options |= LOG_NDELAY;
145 #endif
146
147 #ifdef LOG_DAEMON
148 openlog("rsyncd", options, lp_syslog_facility(module_id));
149 #else
150 openlog("rsyncd", options);
151 #endif
152
153 #ifndef LOG_NDELAY
154 logit(LOG_INFO, "rsyncd started\n");
155 #endif
156 }
157
158 static void logfile_open(void)
159 {
160 mode_t old_umask = umask(022 | orig_umask);
161 logfile_fp = fopen(logfile_name, "a");
162 umask(old_umask);
163 if (!logfile_fp) {
164 int fopen_errno = errno;
165 /* Rsync falls back to using syslog on failure. */
166 syslog_init();
167 rsyserr(FERROR, fopen_errno,
168 "failed to open log-file %s", logfile_name);
169 rprintf(FINFO, "Ignoring \"log file\" setting.\n");
170 }
171 }
172
173 void log_init(int restart)
174 {
175 if (log_initialised) {
176 if (!restart)
177 return;
178 if (strcmp(logfile_name, lp_log_file(module_id)) != 0) {
179 if (logfile_fp) {
180 fclose(logfile_fp);
181 logfile_fp = NULL;
182 } else
183 closelog();
184 logfile_name = NULL;
185 } else if (*logfile_name)
186 return; /* unchanged, non-empty "log file" names */
187 else if (lp_syslog_facility(-1) != lp_syslog_facility(module_id))
188 closelog();
189 else
190 return; /* unchanged syslog settings */
191 } else
192 log_initialised = 1;
193
194 /* This looks pointless, but it is needed in order for the
195 * C library on some systems to fetch the timezone info
196 * before the chroot. */
197 timestring(time(NULL));
198
199 /* Optionally use a log file instead of syslog. (Non-daemon
200 * rsyncs will have already set logfile_name, as needed.) */
201 if (am_daemon && !logfile_name)
202 logfile_name = lp_log_file(module_id);
203 if (logfile_name && *logfile_name)
204 logfile_open();
205 else
206 syslog_init();
207 }
208
209 void logfile_close(void)
210 {
211 if (logfile_fp) {
212 logfile_was_closed = 1;
213 fclose(logfile_fp);
214 logfile_fp = NULL;
215 }
216 }
217
218 void logfile_reopen(void)
219 {
220 if (logfile_was_closed) {
221 logfile_was_closed = 0;
222 logfile_open();
223 }
224 }
225
226 static void filtered_fwrite(FILE *f, const char *buf, int len, int use_isprint)
227 {
228 const char *s, *end = buf + len;
229 for (s = buf; s < end; s++) {
230 if ((s < end - 4
231 && *s == '\\' && s[1] == '#'
232 && isDigit(s + 2)
233 && isDigit(s + 3)
234 && isDigit(s + 4))
235 || (*s != '\t'
236 && ((use_isprint && !isPrint(s))
237 || *(uchar*)s < ' '))) {
238 if (s != buf && fwrite(buf, s - buf, 1, f) != 1)
239 exit_cleanup(RERR_MESSAGEIO);
240 fprintf(f, "\\#%03o", *(uchar*)s);
241 buf = s + 1;
242 }
243 }
244 if (buf != end && fwrite(buf, end - buf, 1, f) != 1)
245 exit_cleanup(RERR_MESSAGEIO);
246 }
247
248 /* this is the underlying (unformatted) rsync debugging function. Call
249 * it with FINFO, FERROR_*, FWARNING, FLOG, or FCLIENT. Note: recursion
250 * can happen with certain fatal conditions. */
251 void rwrite(enum logcode code, const char *buf, int len, int is_utf8)
252 {
253 int trailing_CR_or_NL;
254 FILE *f = msgs2stderr ? stderr : stdout;
255 #ifdef ICONV_OPTION
256 iconv_t ic = is_utf8 && ic_recv != (iconv_t)-1 ? ic_recv : ic_chck;
257 #else
258 #ifdef ICONV_CONST
259 iconv_t ic = ic_chck;
260 #endif
261 #endif
262
263 if (len < 0)
264 exit_cleanup(RERR_MESSAGEIO);
265
266 if (msgs2stderr) {
267 if (!am_daemon) {
268 if (code == FLOG)
269 return;
270 goto output_msg;
271 }
272 if (code == FCLIENT)
273 return;
274 code = FLOG;
275 } else if (send_msgs_to_gen) {
276 assert(!is_utf8);
277 /* Pass the message to our sibling in native charset. */
278 send_msg((enum msgcode)code, buf, len, 0);
279 return;
280 }
281
282 if (code == FERROR_SOCKET) /* This gets simplified for a non-sibling. */
283 code = FERROR;
284 else if (code == FERROR_UTF8) {
285 is_utf8 = 1;
286 code = FERROR;
287 }
288
289 if (code == FCLIENT)
290 code = FINFO;
291 else if (am_daemon || logfile_name) {
292 static int in_block;
293 char msg[2048];
294 int priority = code == FINFO || code == FLOG ? LOG_INFO : LOG_WARNING;
295
296 if (in_block)
297 return;
298 in_block = 1;
299 if (!log_initialised)
300 log_init(0);
301 strlcpy(msg, buf, MIN((int)sizeof msg, len + 1));
302 logit(priority, msg);
303 in_block = 0;
304
305 if (code == FLOG || (am_daemon && !am_server))
306 return;
307 } else if (code == FLOG)
308 return;
309
310 if (quiet && code == FINFO)
311 return;
312
313 if (am_server) {
314 enum msgcode msg = (enum msgcode)code;
315 if (protocol_version < 30) {
316 if (msg == MSG_ERROR)
317 msg = MSG_ERROR_XFER;
318 else if (msg == MSG_WARNING)
319 msg = MSG_INFO;
320 }
321 /* Pass the message to the non-server side. */
322 if (send_msg(msg, buf, len, !is_utf8))
323 return;
324 if (am_daemon) {
325 /* TODO: can we send the error to the user somehow? */
326 return;
327 }
328 f = stderr;
329 }
330
331 output_msg:
332 switch (code) {
333 case FERROR_XFER:
334 got_xfer_error = 1;
335 /* FALL THROUGH */
336 case FERROR:
337 case FERROR_UTF8:
338 case FERROR_SOCKET:
339 case FWARNING:
340 f = stderr;
341 break;
342 case FLOG:
343 case FINFO:
344 case FCLIENT:
345 break;
346 default:
347 fprintf(stderr, "Unknown logcode in rwrite(): %d [%s]\n", (int)code, who_am_i());
348 exit_cleanup(RERR_MESSAGEIO);
349 }
350
351 if (output_needs_newline) {
352 fputc('\n', f);
353 output_needs_newline = 0;
354 }
355
356 trailing_CR_or_NL = len && (buf[len-1] == '\n' || buf[len-1] == '\r')
357 ? buf[--len] : 0;
358
359 if (len && buf[0] == '\r') {
360 fputc('\r', f);
361 buf++;
362 len--;
363 }
364
365 #ifdef ICONV_CONST
366 if (ic != (iconv_t)-1) {
367 xbuf outbuf, inbuf;
368 char convbuf[1024];
369 int ierrno;
370
371 INIT_CONST_XBUF(outbuf, convbuf);
372 INIT_XBUF(inbuf, (char*)buf, len, (size_t)-1);
373
374 while (inbuf.len) {
375 iconvbufs(ic, &inbuf, &outbuf, inbuf.pos ? 0 : ICB_INIT);
376 ierrno = errno;
377 if (outbuf.len) {
378 filtered_fwrite(f, convbuf, outbuf.len, 0);
379 outbuf.len = 0;
380 }
381 if (!ierrno || ierrno == E2BIG)
382 continue;
383 fprintf(f, "\\#%03o", CVAL(inbuf.buf, inbuf.pos++));
384 inbuf.len--;
385 }
386 } else
387 #endif
388 filtered_fwrite(f, buf, len, !allow_8bit_chars);
389
390 if (trailing_CR_or_NL) {
391 fputc(trailing_CR_or_NL, f);
392 fflush(f);
393 }
394 }
395
396 /* This is the rsync debugging function. Call it with FINFO, FERROR_*,
397 * FWARNING, FLOG, or FCLIENT. */
398 void rprintf(enum logcode code, const char *format, ...)
399 {
400 va_list ap;
401 char buf[BIGPATHBUFLEN];
402 size_t len;
403
404 va_start(ap, format);
405 len = vsnprintf(buf, sizeof buf, format, ap);
406 va_end(ap);
407
408 /* Deal with buffer overruns. Instead of panicking, just
409 * truncate the resulting string. (Note that configure ensures
410 * that we have a vsnprintf() that doesn't ever return -1.) */
411 if (len > sizeof buf - 1) {
412 static const char ellipsis[] = "[...]";
413
414 /* Reset length, and zero-terminate the end of our buffer */
415 len = sizeof buf - 1;
416 buf[len] = '\0';
417
418 /* Copy the ellipsis to the end of the string, but give
419 * us one extra character:
420 *
421 * v--- null byte at buf[sizeof buf - 1]
422 * abcdefghij0
423 * -> abcd[...]00 <-- now two null bytes at end
424 *
425 * If the input format string has a trailing newline,
426 * we copy it into that extra null; if it doesn't, well,
427 * all we lose is one byte. */
428 memcpy(buf+len-sizeof ellipsis, ellipsis, sizeof ellipsis);
429 if (format[strlen(format)-1] == '\n') {
430 buf[len-1] = '\n';
431 }
432 }
433
434 rwrite(code, buf, len, 0);
435 }
436
437 /* This is like rprintf, but it also tries to print some
438 * representation of the error code. Normally errcode = errno.
439 *
440 * Unlike rprintf, this always adds a newline and there should not be
441 * one in the format string.
442 *
443 * Note that since strerror might involve dynamically loading a
444 * message catalog we need to call it once before chroot-ing. */
445 void rsyserr(enum logcode code, int errcode, const char *format, ...)
446 {
447 va_list ap;
448 char buf[BIGPATHBUFLEN];
449 size_t len;
450
451 strlcpy(buf, RSYNC_NAME ": ", sizeof buf);
452 len = (sizeof RSYNC_NAME ": ") - 1;
453
454 va_start(ap, format);
455 len += vsnprintf(buf + len, sizeof buf - len, format, ap);
456 va_end(ap);
457
458 if (len < sizeof buf) {
459 len += snprintf(buf + len, sizeof buf - len,
460 ": %s (%d)\n", strerror(errcode), errcode);
461 }
462 if (len >= sizeof buf)
463 exit_cleanup(RERR_MESSAGEIO);
464
465 rwrite(code, buf, len, 0);
466 }
467
468 void rflush(enum logcode code)
469 {
470 FILE *f;
471
472 if (am_daemon || code == FLOG)
473 return;
474
475 if (!am_server && (code == FINFO || code == FCLIENT))
476 f = stdout;
477 else
478 f = stderr;
479
480 fflush(f);
481 }
482
483 void remember_initial_stats(void)
484 {
485 initial_data_read = total_data_read;
486 initial_data_written = total_data_written;
487 }
488
489 /* A generic logging routine for send/recv, with parameter substitiution. */
490 static void log_formatted(enum logcode code, const char *format, const char *op,
491 struct file_struct *file, const char *fname, int iflags,
492 const char *hlink)
493 {
494 char buf[MAXPATHLEN+1024], buf2[MAXPATHLEN], fmt[32];
495 char *p, *s, *c;
496 const char *n;
497 size_t len, total;
498 int64 b;
499
500 *fmt = '%';
501
502 /* We expand % codes one by one in place in buf. We don't
503 * copy in the terminating null of the inserted strings, but
504 * rather keep going until we reach the null of the format. */
505 total = strlcpy(buf, format, sizeof buf);
506 if (total > MAXPATHLEN) {
507 rprintf(FERROR, "log-format string is WAY too long!\n");
508 exit_cleanup(RERR_MESSAGEIO);
509 }
510 buf[total++] = '\n';
511 buf[total] = '\0';
512
513 for (p = buf; (p = strchr(p, '%')) != NULL; ) {
514 int humanize = 0;
515 s = p++;
516 c = fmt + 1;
517 while (*p == '\'') {
518 humanize++;
519 p++;
520 }
521 if (*p == '-')
522 *c++ = *p++;
523 while (isDigit(p) && c - fmt < (int)(sizeof fmt) - 8)
524 *c++ = *p++;
525 while (*p == '\'') {
526 humanize++;
527 p++;
528 }
529 if (!*p)
530 break;
531 *c = '\0';
532 n = NULL;
533
534 /* Note for %h and %a: it doesn't matter what fd we pass to
535 * client_{name,addr} because rsync_module will already have
536 * forced the answer to be cached (assuming, of course, for %h
537 * that lp_reverse_lookup(module_id) is true). */
538 switch (*p) {
539 case 'h':
540 if (am_daemon) {
541 n = lp_reverse_lookup(module_id)
542 ? client_name(0) : undetermined_hostname;
543 }
544 break;
545 case 'a':
546 if (am_daemon)
547 n = client_addr(0);
548 break;
549 case 'l':
550 strlcat(fmt, "s", sizeof fmt);
551 snprintf(buf2, sizeof buf2, fmt,
552 do_big_num(F_LENGTH(file), humanize, NULL));
553 n = buf2;
554 break;
555 case 'U':
556 strlcat(fmt, "u", sizeof fmt);
557 snprintf(buf2, sizeof buf2, fmt,
558 uid_ndx ? F_OWNER(file) : 0);
559 n = buf2;
560 break;
561 case 'G':
562 if (!gid_ndx || file->flags & FLAG_SKIP_GROUP)
563 n = "DEFAULT";
564 else {
565 strlcat(fmt, "u", sizeof fmt);
566 snprintf(buf2, sizeof buf2, fmt,
567 F_GROUP(file));
568 n = buf2;
569 }
570 break;
571 case 'p':
572 strlcat(fmt, "ld", sizeof fmt);
573 snprintf(buf2, sizeof buf2, fmt,
574 (long)getpid());
575 n = buf2;
576 break;
577 case 'M':
578 n = c = timestring(file->modtime);
579 while ((c = strchr(c, ' ')) != NULL)
580 *c = '-';
581 break;
582 case 'B':
583 c = buf2 + MAXPATHLEN - PERMSTRING_SIZE - 1;
584 permstring(c, file->mode);
585 n = c + 1; /* skip the type char */
586 break;
587 case 'o':
588 n = op;
589 break;
590 case 'f':
591 if (fname) {
592 c = f_name_buf();
593 strlcpy(c, fname, MAXPATHLEN);
594 } else
595 c = f_name(file, NULL);
596 if (am_sender && F_PATHNAME(file)) {
597 pathjoin(buf2, sizeof buf2,
598 F_PATHNAME(file), c);
599 clean_fname(buf2, 0);
600 if (fmt[1]) {
601 strlcpy(c, buf2, MAXPATHLEN);
602 n = c;
603 } else
604 n = buf2;
605 } else if (am_daemon && *c != '/') {
606 pathjoin(buf2, sizeof buf2,
607 curr_dir + module_dirlen, c);
608 clean_fname(buf2, 0);
609 if (fmt[1]) {
610 strlcpy(c, buf2, MAXPATHLEN);
611 n = c;
612 } else
613 n = buf2;
614 } else {
615 clean_fname(c, 0);
616 n = c;
617 }
618 if (*n == '/')
619 n++;
620 break;
621 case 'n':
622 if (fname) {
623 c = f_name_buf();
624 strlcpy(c, fname, MAXPATHLEN);
625 } else
626 c = f_name(file, NULL);
627 if (S_ISDIR(file->mode))
628 strlcat(c, "/", MAXPATHLEN);
629 n = c;
630 break;
631 case 'L':
632 if (hlink && *hlink) {
633 n = hlink;
634 strlcpy(buf2, " => ", sizeof buf2);
635 } else if (S_ISLNK(file->mode) && !fname) {
636 n = F_SYMLINK(file);
637 strlcpy(buf2, " -> ", sizeof buf2);
638 } else {
639 n = "";
640 if (!fmt[1])
641 break;
642 strlcpy(buf2, " ", sizeof buf2);
643 }
644 strlcat(fmt, "s", sizeof fmt);
645 snprintf(buf2 + 4, sizeof buf2 - 4, fmt, n);
646 n = buf2;
647 break;
648 case 'm':
649 n = lp_name(module_id);
650 break;
651 case 't':
652 n = timestring(time(NULL));
653 break;
654 case 'P':
655 n = full_module_path;
656 break;
657 case 'u':
658 n = auth_user;
659 break;
660 case 'b':
661 if (!(iflags & ITEM_TRANSFER))
662 b = 0;
663 else if (am_sender)
664 b = total_data_written - initial_data_written;
665 else
666 b = total_data_read - initial_data_read;
667 strlcat(fmt, "s", sizeof fmt);
668 snprintf(buf2, sizeof buf2, fmt,
669 do_big_num(b, humanize, NULL));
670 n = buf2;
671 break;
672 case 'c':
673 if (!(iflags & ITEM_TRANSFER))
674 b = 0;
675 else if (!am_sender)
676 b = total_data_written - initial_data_written;
677 else
678 b = total_data_read - initial_data_read;
679 strlcat(fmt, "s", sizeof fmt);
680 snprintf(buf2, sizeof buf2, fmt,
681 do_big_num(b, humanize, NULL));
682 n = buf2;
683 break;
684 case 'C':
685 if (protocol_version >= 30
686 && (iflags & ITEM_TRANSFER
687 || (always_checksum && S_ISREG(file->mode)))) {
688 int i, x1, x2;
689 const char *sum = iflags & ITEM_TRANSFER
690 ? sender_file_sum : F_SUM(file);
691 c = buf2 + checksum_len*2;
692 *c = '\0';
693 for (i = checksum_len; --i >= 0; ) {
694 x1 = CVAL(sum, i);
695 x2 = x1 >> 4;
696 x1 &= 0xF;
697 *--c = x1 <= 9 ? x1 + '0' : x1 + 'a' - 10;
698 *--c = x2 <= 9 ? x2 + '0' : x2 + 'a' - 10;
699 }
700 } else {
701 memset(buf2, ' ', checksum_len*2);
702 buf2[checksum_len*2] = '\0';
703 }
704 n = buf2;
705 break;
706 case 'i':
707 if (iflags & ITEM_DELETED) {
708 n = "*deleting ";
709 break;
710 }
711 n = c = buf2 + MAXPATHLEN - 32;
712 c[0] = iflags & ITEM_LOCAL_CHANGE
713 ? iflags & ITEM_XNAME_FOLLOWS ? 'h' : 'c'
714 : !(iflags & ITEM_TRANSFER) ? '.'
715 : !local_server && *op == 's' ? '<' : '>';
716 if (S_ISLNK(file->mode)) {
717 c[1] = 'L';
718 c[3] = '.';
719 c[4] = !(iflags & ITEM_REPORT_TIME) ? '.'
720 : !preserve_times || !receiver_symlink_times
721 || (iflags & ITEM_REPORT_TIMEFAIL) ? 'T' : 't';
722 } else {
723 c[1] = S_ISDIR(file->mode) ? 'd'
724 : IS_SPECIAL(file->mode) ? 'S'
725 : IS_DEVICE(file->mode) ? 'D' : 'f';
726 c[3] = !(iflags & ITEM_REPORT_SIZE) ? '.' : 's';
727 c[4] = !(iflags & ITEM_REPORT_TIME) ? '.'
728 : !preserve_times ? 'T' : 't';
729 }
730 c[2] = !(iflags & ITEM_REPORT_CHANGE) ? '.' : 'c';
731 c[5] = !(iflags & ITEM_REPORT_PERMS) ? '.' : 'p';
732 c[6] = !(iflags & ITEM_REPORT_OWNER) ? '.' : 'o';
733 c[7] = !(iflags & ITEM_REPORT_GROUP) ? '.' : 'g';
734 c[8] = !(iflags & ITEM_REPORT_ATIME) ? '.' : 'u';
735 c[9] = !(iflags & ITEM_REPORT_ACL) ? '.' : 'a';
736 c[10] = !(iflags & ITEM_REPORT_XATTR) ? '.' : 'x';
737 c[11] = '\0';
738
739 if (iflags & (ITEM_IS_NEW|ITEM_MISSING_DATA)) {
740 char ch = iflags & ITEM_IS_NEW ? '+' : '?';
741 int i;
742 for (i = 2; c[i]; i++)
743 c[i] = ch;
744 } else if (c[0] == '.' || c[0] == 'h' || c[0] == 'c') {
745 int i;
746 for (i = 2; c[i]; i++) {
747 if (c[i] != '.')
748 break;
749 }
750 if (!c[i]) {
751 for (i = 2; c[i]; i++)
752 c[i] = ' ';
753 }
754 }
755 break;
756 }
757
758 /* "n" is the string to be inserted in place of this % code. */
759 if (!n)
760 continue;
761 if (n != buf2 && fmt[1]) {
762 strlcat(fmt, "s", sizeof fmt);
763 snprintf(buf2, sizeof buf2, fmt, n);
764 n = buf2;
765 }
766 len = strlen(n);
767
768 /* Subtract the length of the escape from the string's size. */
769 total -= p - s + 1;
770
771 if (len + total >= (size_t)sizeof buf) {
772 rprintf(FERROR,
773 "buffer overflow expanding %%%c -- exiting\n",
774 p[0]);
775 exit_cleanup(RERR_MESSAGEIO);
776 }
777
778 /* Shuffle the rest of the string along to make space for n */
779 if (len != (size_t)(p - s + 1))
780 memmove(s + len, p + 1, total - (s - buf) + 1);
781 total += len;
782
783 /* Insert the contents of string "n", but NOT its null. */
784 if (len)
785 memcpy(s, n, len);
786
787 /* Skip over inserted string; continue looking */
788 p = s + len;
789 }
790
791 rwrite(code, buf, total, 0);
792 }
793
794 /* Return 1 if the format escape is in the log-format string (e.g. look for
795 * the 'b' in the "%9b" format escape). */
796 int log_format_has(const char *format, char esc)
797 {
798 const char *p;
799
800 if (!format)
801 return 0;
802
803 for (p = format; (p = strchr(p, '%')) != NULL; ) {
804 for (p++; *p == '\''; p++) {} /*SHARED ITERATOR*/
805 if (*p == '-')
806 p++;
807 while (isDigit(p))
808 p++;
809 while (*p == '\'') p++;
810 if (!*p)
811 break;
812 if (*p == esc)
813 return 1;
814 }
815 return 0;
816 }
817
818 /* Log the transfer of a file. If the code is FCLIENT, the output just goes
819 * to stdout. If it is FLOG, it just goes to the log file. Otherwise we
820 * output to both. */
821 void log_item(enum logcode code, struct file_struct *file, int iflags, const char *hlink)
822 {
823 const char *s_or_r = am_sender ? "send" : "recv";
824
825 if (code != FLOG && stdout_format && !am_server)
826 log_formatted(FCLIENT, stdout_format, s_or_r, file, NULL, iflags, hlink);
827 if (code != FCLIENT && logfile_format && *logfile_format)
828 log_formatted(FLOG, logfile_format, s_or_r, file, NULL, iflags, hlink);
829 }
830
831 void maybe_log_item(struct file_struct *file, int iflags, int itemizing,
832 const char *buf)
833 {
834 int significant_flags = iflags & SIGNIFICANT_ITEM_FLAGS;
835 int see_item = itemizing && (significant_flags || *buf
836 || stdout_format_has_i > 1 || (INFO_GTE(NAME, 2) && stdout_format_has_i));
837 int local_change = iflags & ITEM_LOCAL_CHANGE && significant_flags;
838 if (am_server) {
839 if (logfile_name && !dry_run && see_item
840 && (significant_flags || logfile_format_has_i))
841 log_item(FLOG, file, iflags, buf);
842 } else if (see_item || local_change || *buf
843 || (S_ISDIR(file->mode) && significant_flags)) {
844 enum logcode code = significant_flags || logfile_format_has_i ? FINFO : FCLIENT;
845 log_item(code, file, iflags, buf);
846 }
847 }
848
849 void log_delete(const char *fname, int mode)
850 {
851 static struct {
852 union file_extras ex[4]; /* just in case... */
853 struct file_struct file;
854 } x; /* Zero-initialized due to static declaration. */
855 int len = strlen(fname);
856 const char *fmt;
857
858 x.file.mode = mode;
859
860 if (!INFO_GTE(DEL, 1) && !stdout_format)
861 ;
862 else if (am_server && protocol_version >= 29 && len < MAXPATHLEN) {
863 if (S_ISDIR(mode))
864 len++; /* directories include trailing null */
865 send_msg(MSG_DELETED, fname, len, am_generator);
866 } else {
867 fmt = stdout_format_has_o_or_i ? stdout_format : "deleting %n";
868 log_formatted(FCLIENT, fmt, "del.", &x.file, fname, ITEM_DELETED, NULL);
869 }
870
871 if (!logfile_name || dry_run || !logfile_format)
872 return;
873
874 fmt = logfile_format_has_o_or_i ? logfile_format : "deleting %n";
875 log_formatted(FLOG, fmt, "del.", &x.file, fname, ITEM_DELETED, NULL);
876 }
877
878 /*
879 * Called when the transfer is interrupted for some reason.
880 *
881 * Code is one of the RERR_* codes from errcode.h, or terminating
882 * successfully.
883 */
884 void log_exit(int code, const char *file, int line)
885 {
886 if (code == 0) {
887 rprintf(FLOG,"sent %s bytes received %s bytes total size %s\n",
888 comma_num(stats.total_written),
889 comma_num(stats.total_read),
890 comma_num(stats.total_size));
891 } else if (am_server != 2) {
892 const char *name;
893
894 name = rerr_name(code);
895 if (!name)
896 name = "unexplained error";
897
898 /* VANISHED is not an error, only a warning */
899 if (code == RERR_VANISHED) {
900 rprintf(FWARNING, "rsync warning: %s (code %d) at %s(%d) [%s=%s]\n",
901 name, code, file, line, who_am_i(), RSYNC_VERSION);
902 } else {
903 rprintf(FERROR, "rsync error: %s (code %d) at %s(%d) [%s=%s]\n",
904 name, code, file, line, who_am_i(), RSYNC_VERSION);
905 }
906 }
907 }