X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/6afb90778b4a375a45b8ac893c338cccf61db01d..b74b3d538efd157fafa7b8690da23671a37d6e54:/log.c

diff --git a/log.c b/log.c
index c1ef42bc..33ef5932 100644
--- a/log.c
+++ b/log.c
@@ -38,12 +38,14 @@ extern int module_id;
 extern int msg_fd_out;
 extern int protocol_version;
 extern int preserve_times;
+extern int log_format_has_i;
 extern int log_format_has_o_or_i;
 extern int daemon_log_format_has_o_or_i;
 extern char *auth_user;
 extern char *log_format;
 
 static int log_initialised;
+static int logfile_was_closed;
 static char *logfname;
 static FILE *logfile;
 struct stats stats;
@@ -64,8 +66,11 @@ struct {
 	{ RERR_STREAMIO   , "error in rsync protocol data stream" },
 	{ RERR_MESSAGEIO  , "errors with program diagnostics" },
 	{ RERR_IPC        , "error in IPC code" },
-	{ RERR_SIGNAL     , "received SIGUSR1 or SIGINT" },
-	{ RERR_WAITCHILD  , "some error returned by waitpid()" },
+	{ RERR_CRASHED    , "sibling process crashed" },
+	{ RERR_TERMINATED , "sibling process terminated abnormally" },
+	{ RERR_SIGNAL1    , "received SIGUSR1" },
+	{ RERR_SIGNAL     , "received SIGINT, SIGTERM, or SIGHUP" },
+	{ RERR_WAITCHILD  , "waitpid() failed" },
 	{ RERR_MALLOC     , "error allocating core memory buffers" },
 	{ RERR_PARTIAL    , "some files could not be transferred" },
 	{ RERR_VANISHED   , "some files vanished before they could be transferred" },
@@ -96,14 +101,9 @@ static char const *rerr_name(int code)
 
 static void logit(int priority, char *buf)
 {
-	if (logfname) {
-		if (!logfile) {
-			log_open();
-			if (!logfname) {
-				logit(priority, buf);
-				return;
-			}
-		}
+	if (logfile_was_closed)
+		logfile_reopen();
+	if (logfile) {
 		fprintf(logfile,"%s [%d] %s",
 			timestring(time(NULL)), (int)getpid(), buf);
 		fflush(logfile);
@@ -136,6 +136,22 @@ static void syslog_init()
 #endif
 }
 
+static void logfile_open(void)
+{
+	extern int orig_umask;
+	int old_umask = umask(022 | orig_umask);
+	logfile = fopen(logfname, "a");
+	umask(old_umask);
+	if (!logfile) {
+		int fopen_errno = errno;
+		/* Rsync falls back to using syslog on failure. */
+		syslog_init();
+		rsyserr(FERROR, fopen_errno,
+			"failed to open log-file %s", logfname);
+		rprintf(FINFO, "Ignoring \"log file\" setting.\n");
+	}
+}
+
 void log_init(void)
 {
 	time_t t;
@@ -152,42 +168,26 @@ void log_init(void)
 
 	/* optionally use a log file instead of syslog */
 	logfname = lp_log_file();
-	if (logfname) {
-		if (*logfname) {
-			log_open();
-			return;
-		}
-		logfname = NULL;
-	}
-
-	syslog_init();
+	if (logfname && *logfname)
+		logfile_open();
+	else
+		syslog_init();
 }
 
-void log_open(void)
+void logfile_close(void)
 {
-	if (logfname && !logfile) {
-		extern int orig_umask;
-		int old_umask = umask(022 | orig_umask);
-		logfile = fopen(logfname, "a");
-		umask(old_umask);
-		if (!logfile) {
-			char *had_logfname = logfname;
-			int open_errno = errno;
-			/* Rsync falls back to using syslog on failure. */
-			logfname = NULL;
-			syslog_init();
-			rsyserr(FERROR, open_errno,
-				"failed to open log-file %s", had_logfname);
-			rprintf(FINFO, "Ignoring \"log file\" setting.\n");
-		}
+	if (logfile) {
+		logfile_was_closed = 1;
+		fclose(logfile);
+		logfile = NULL;
 	}
 }
 
-void log_close(void)
+void logfile_reopen(void)
 {
-	if (logfile) {
-		fclose(logfile);
-		logfile = NULL;
+	if (logfile_was_closed) {
+		logfile_was_closed = 0;
+		logfile_open();
 	}
 }
 
@@ -267,7 +267,7 @@ void rwrite(enum logcode code, char *buf, int len)
 void rprintf(enum logcode code, const char *format, ...)
 {
 	va_list ap;
-	char buf[MAXPATHLEN+512];
+	char buf[BIGPATHBUFLEN];
 	size_t len;
 
 	va_start(ap, format);
@@ -278,7 +278,7 @@ void rprintf(enum logcode code, const char *format, ...)
 	 * truncate the resulting string.  (Note that configure ensures
 	 * that we have a vsnprintf() that doesn't ever return -1.) */
 	if (len > sizeof buf - 1) {
-		const char ellipsis[] = "[...]";
+		static const char ellipsis[] = "[...]";
 
 		/* Reset length, and zero-terminate the end of our buffer */
 		len = sizeof buf - 1;
@@ -294,7 +294,7 @@ void rprintf(enum logcode code, const char *format, ...)
 		 * If the input format string has a trailing newline,
 		 * we copy it into that extra null; if it doesn't, well,
 		 * all we lose is one byte.  */
-		strncpy(buf+len-sizeof ellipsis, ellipsis, sizeof ellipsis);
+		memcpy(buf+len-sizeof ellipsis, ellipsis, sizeof ellipsis);
 		if (format[strlen(format)-1] == '\n') {
 			buf[len-1] = '\n';
 		}
@@ -315,7 +315,7 @@ void rprintf(enum logcode code, const char *format, ...)
 void rsyserr(enum logcode code, int errcode, const char *format, ...)
 {
 	va_list ap;
-	char buf[MAXPATHLEN+512];
+	char buf[BIGPATHBUFLEN];
 	size_t len;
 
 	strcpy(buf, RSYNC_NAME ": ");
@@ -403,8 +403,14 @@ static void log_formatted(enum logcode code, char *format, char *op,
 		n = NULL;
 
 		switch (*p) {
-		case 'h': if (am_daemon) n = client_name(0); break;
-		case 'a': if (am_daemon) n = client_addr(0); break;
+		case 'h':
+			if (am_daemon)
+				n = client_name(0);
+			break;
+		case 'a':
+			if (am_daemon)
+				n = client_addr(0);
+			break;
 		case 'l':
 			strlcat(fmt, ".0f", sizeof fmt);
 			snprintf(buf2, sizeof buf2, fmt,
@@ -417,7 +423,9 @@ static void log_formatted(enum logcode code, char *format, char *op,
 				 (long)getpid());
 			n = buf2;
 			break;
-		case 'o': n = op; break;
+		case 'o':
+			n = op;
+			break;
 		case 'f':
 			n = safe_fname(f_name(file));
 			if (am_sender && file->dir.root) {
@@ -459,10 +467,18 @@ static void log_formatted(enum logcode code, char *format, char *op,
 			snprintf(buf2 + 4, sizeof buf2 - 4, fmt, n);
 			n = buf2;
 			break;
-		case 'm': n = lp_name(module_id); break;
-		case 't': n = timestring(time(NULL)); break;
-		case 'P': n = lp_path(module_id); break;
-		case 'u': n = auth_user; break;
+		case 'm':
+			n = lp_name(module_id);
+			break;
+		case 't':
+			n = timestring(time(NULL));
+			break;
+		case 'P':
+			n = lp_path(module_id);
+			break;
+		case 'u':
+			n = auth_user;
+			break;
 		case 'b':
 			if (am_sender) {
 				b = stats.total_written -
@@ -516,7 +532,8 @@ static void log_formatted(enum logcode code, char *format, char *op,
 				int i;
 				for (i = 2; n[i]; i++)
 					n[i] = ch;
-			} else if (!(iflags & (ITEM_TRANSFER|ITEM_LOCAL_CHANGE))) {
+			} else if (n[0] == '.' || n[0] == 'h'
+			        || (n[0] == 'c' && n[1] == 'f')) {
 				int i;
 				for (i = 2; n[i]; i++) {
 					if (n[i] != '.')
@@ -606,12 +623,15 @@ void log_item(struct file_struct *file, struct stats *initial_stats,
 void maybe_log_item(struct file_struct *file, int iflags, int itemizing,
 		    char *buf)
 {
-	int see_item = itemizing && (iflags || verbose > 1);
+	int significant_flags = iflags & SIGNIFICANT_ITEM_FLAGS;
+	int see_item = itemizing && (significant_flags || *buf
+				  || (verbose > 1 && log_format_has_i));
+	int local_change = iflags & ITEM_LOCAL_CHANGE && significant_flags;
 	if (am_server) {
 		if (am_daemon && !dry_run && see_item)
 			log_item(file, &stats, iflags, buf);
-	} else if (see_item || iflags & ITEM_LOCAL_CHANGE || *buf
-	    || (S_ISDIR(file->mode) && iflags & SIGNIFICANT_ITEM_FLAGS))
+	} else if (see_item || local_change || *buf
+	    || (S_ISDIR(file->mode) && significant_flags))
 		log_item(file, &stats, iflags, buf);
 }