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