diff options
| -rw-r--r-- | usr.bin/ktrdump/ktrdump.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/usr.bin/ktrdump/ktrdump.c b/usr.bin/ktrdump/ktrdump.c index 5f3e7ca..d55aa72 100644 --- a/usr.bin/ktrdump/ktrdump.c +++ b/usr.bin/ktrdump/ktrdump.c @@ -219,8 +219,11 @@ main(int ac, char **av) /* * Now tear through the trace buffer. */ - if (!iflag) - i = (index - 1) % entries; + if (!iflag) { + i = index - 1; + if (i < 0) + i = entries - 1; + } tlast = -1; for (;;) { if (buf[i].ktr_desc == NULL) @@ -288,7 +291,8 @@ next: if ((c = *p++) == '\0') if (!iflag) { if (i == index) break; - i = (i - 1) % entries; + if (--i < 0) + i = entries - 1; } else { if (++i == entries) break; |
