diff options
| -rw-r--r-- | usr.bin/split/split.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/usr.bin/split/split.c b/usr.bin/split/split.c index 561113e0bcc9..572af5993071 100644 --- a/usr.bin/split/split.c +++ b/usr.bin/split/split.c @@ -379,8 +379,10 @@ newfile(void) /* maxfiles = pattlen^sufflen, but don't use libm. */ for (maxfiles = 1, i = 0; i < sufflen; i++) - if ((maxfiles *= pattlen) <= 0) + if (LONG_MAX / pattlen < maxfiles) errx(EX_USAGE, "suffix is too long (max %ld)", i); + else + maxfiles *= pattlen; if (fnum == maxfiles) errx(EX_DATAERR, "too many files"); |