patch 8.2.1088: a very long translation might cause a buffer overflow
Problem: A very long translation might cause a buffer overflow.
Solution: Trunctate the message if needed.
diff --git a/src/fileio.c b/src/fileio.c
index 395e54b..81a5026 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -52,10 +52,14 @@
if (msg_silent != 0)
return;
msg_add_fname(buf, name); // put file name in IObuff with quotes
+
// If it's extremely long, truncate it.
- if (STRLEN(IObuff) > IOSIZE - 80)
- IObuff[IOSIZE - 80] = NUL;
- STRCAT(IObuff, s);
+ if (STRLEN(IObuff) > IOSIZE - 100)
+ IObuff[IOSIZE - 100] = NUL;
+
+ // Avoid an over-long translation to cause trouble.
+ STRNCAT(IObuff, s, 99);
+
/*
* For the first message may have to start a new line.
* For further ones overwrite the previous one, reset msg_scroll before