X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/9baed7609ca497814e6ad3ea6e4b315caca2bb4e..624d6be2a529114604da511dd1f3eadf509b4b9b:/log.c

diff --git a/log.c b/log.c
index 148d6b15..c8a433db 100644
--- a/log.c
+++ b/log.c
@@ -364,13 +364,15 @@ static void log_formatted(enum logcode code, char *format, char *op,
 	 * rather keep going until we reach the nul of the format. */
 	total = strlcpy(buf, format, sizeof buf);
 	
-	for (p = buf; (p = strchr(p, '%')) != NULL && p[1]; ) {
+	for (p = buf; (p = strchr(p, '%')) != NULL; ) {
 		s = p++;
 		n = fmt + 1;
 		if (*p == '-')
 			*n++ = *p++;
-		while (isdigit(*(uchar*)p) && n - fmt < 16)
+		while (isdigit(*(uchar*)p) && n - fmt < (int)(sizeof fmt) - 8)
 			*n++ = *p++;
+		if (!*p)
+			break;
 		*n = '\0';
 		n = NULL;
 
@@ -397,7 +399,10 @@ static void log_formatted(enum logcode code, char *format, char *op,
 					 file->dir.root, n);
 				/* The buffer from safe_fname() has more
 				 * room than MAXPATHLEN, so this is safe. */
-				strcpy(n, buf2);
+				if (fmt[1])
+					strcpy(n, buf2);
+				else
+					n = buf2;
 			}
 			clean_fname(n, 0);
 			if (*n == '/')
@@ -456,7 +461,7 @@ static void log_formatted(enum logcode code, char *format, char *op,
 				n = "*deleting";
 				break;
 			}
-			n = buf2;
+			n = buf2 + MAXPATHLEN - 32;
 			n[0] = iflags & ITEM_LOCAL_CHANGE
 			      ? iflags & ITEM_XNAME_FOLLOWS ? 'h' : 'c'
 			     : !(iflags & ITEM_TRANSFER) ? '.'
@@ -494,9 +499,6 @@ static void log_formatted(enum logcode code, char *format, char *op,
 			break;
 		}
 
-		/* Subtract the length of the escape from the string's size. */
-		total -= p - s;
-
 		/* "n" is the string to be inserted in place of this % code. */
 		if (!n)
 			continue;
@@ -507,6 +509,9 @@ static void log_formatted(enum logcode code, char *format, char *op,
 		}
 		len = strlen(n);
 
+		/* Subtract the length of the escape from the string's size. */
+		total -= p - s;
+
 		if (len + total >= sizeof buf) {
 			rprintf(FERROR,
 				"buffer overflow expanding %%%c -- exiting\n",
@@ -530,6 +535,26 @@ static void log_formatted(enum logcode code, char *format, char *op,
 	rprintf(code, "%s\n", buf);
 }
 
+int log_format_has(const char *format, char esc)
+{
+	const char *p;
+
+	if (!format)
+		return 0;
+
+	for (p = format; (p = strchr(p, '%')) != NULL; ) {
+		if (*++p == '-')
+			p++;
+		while (isdigit(*(uchar*)p))
+			p++;
+		if (!*p)
+			break;
+		if (*p == esc)
+			return 1;
+	}
+	return 0;
+}
+
 /* log the transfer of a file */
 void log_item(struct file_struct *file, struct stats *initial_stats,
 	      int iflags, char *hlink)