X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/3a993aa4bfb2b968012dc40eb1b4fd3fa4a81c6c..112d728f4858fef5c75e0b25bf6f02af8aa5b83c:/io.c

diff --git a/io.c b/io.c
index dd51c99e..05a755fb 100644
--- a/io.c
+++ b/io.c
@@ -342,13 +342,13 @@ void increment_active_files(int ndx, int itemizing, enum logcode code)
 	}
 
 	active_filecnt++;
-	active_bytecnt += the_file_list->files[ndx]->length;
+	active_bytecnt += F_LENGTH(the_file_list->files[ndx]);
 }
 
 void decrement_active_files(int ndx)
 {
 	active_filecnt--;
-	active_bytecnt -= the_file_list->files[ndx]->length;
+	active_bytecnt -= F_LENGTH(the_file_list->files[ndx]);
 }
 
 /* Try to push messages off the list onto the wire.  If we leave with more
@@ -405,6 +405,13 @@ int send_msg(enum msgcode code, const char *buf, int len)
 	return 1;
 }
 
+void send_msg_int(enum msgcode code, int num)
+{
+	char numbuf[4];
+	SIVAL(numbuf, 0, num);
+	send_msg(code, numbuf, 4);
+}
+
 int get_redo_num(int itemizing, enum logcode code)
 {
 	while (1) {
@@ -917,6 +924,12 @@ int64 read_longint(int f)
 		int cnt;
 		readfd(f, b, 3);
 		cnt = int_byte_cnt[CVAL(b, 0)];
+#if SIZEOF_INT64 < 8
+		if (cnt > 5 || (cnt == 5 && (CVAL(b,0)&0x3F || CVAL(b,1)&0x80))) {
+			rprintf(FERROR, "Integer overflow: attempted 64-bit offset\n");
+			exit_cleanup(RERR_UNSUPPORTED);
+		}
+#endif
 		if (cnt > 3)
 			readfd(f, b + 3, cnt - 3);
 		switch (cnt) {
@@ -929,6 +942,7 @@ int64 read_longint(int f)
 		case 5:
 			num = NVAL5(b, 0xC0);
 			break;
+#if SIZEOF_INT64 >= 8
 		case 6:
 			num = NVAL6(b, 0xE0);
 			break;
@@ -941,8 +955,9 @@ int64 read_longint(int f)
 		case 9:
 			num = NVAL8(b+1, 0);
 			break;
+#endif
 		default:
-			exit_cleanup(RERR_PROTOCOL); // XXX impossible
+			exit_cleanup(RERR_PROTOCOL); /* impossible... */
 		}
 	}
 
@@ -1344,6 +1359,16 @@ void write_longint(int f, int64 x)
 		b[2] = (char)(x >> 8);
 		b[3] = (char)x;
 		writefd(f, b, 4);
+#if SIZEOF_INT64 < 8
+	} else {
+		b[0] = 0xC0;
+		b[1] = (char)(x >> 24);
+		b[2] = (char)(x >> 16);
+		b[3] = (char)(x >> 8);
+		b[4] = (char)x;
+		writefd(f, b, 5);
+	}
+#else
 	} else if (x < ((int64)1<<(5*8-3))) {
 		b[0] = (char)((x >> 32) | 0xC0);
 		b[1] = (char)(x >> 24);
@@ -1351,7 +1376,6 @@ void write_longint(int f, int64 x)
 		b[3] = (char)(x >> 8);
 		b[4] = (char)x;
 		writefd(f, b, 5);
-#if SIZEOF_INT64 >= 8
 	} else if (x < ((int64)1<<(6*8-4))) {
 		b[0] = (char)((x >> 40) | 0xE0);
 		b[1] = (char)(x >> 32);
@@ -1391,8 +1415,8 @@ void write_longint(int f, int64 x)
 		b[7] = (char)(x >> 8);
 		b[8] = (char)x;
 		writefd(f, b, 9);
-#endif
 	}
+#endif
 }
 
 void write_buf(int f, const char *buf, size_t len)