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authorJoonwoo Park <joonwpark81@gmail.com>2008-06-30 19:42:23 (GMT)
committerDavid S. Miller <davem@davemloft.net>2008-06-30 19:42:23 (GMT)
commitaebb6a849cfe7d89bcacaaecc20a480dfc1180e7 (patch)
tree6a7cf5c6bdc80c75ec843d8ee44cd98039ca6fd7 /lib/ts_bm.c
parent84ebe1cdae56707b9aa1b40ae5aa7d817ba745f5 (diff)
textsearch: fix Boyer-Moore text search bug
The current logic has a bug which cannot find matching pattern, if the pattern is matched from the first character of target string. for example: pattern=abc, string=abcdefg pattern=a, string=abcdefg Searching algorithm should return 0 for those things. Signed-off-by: Joonwoo Park <joonwpark81@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib/ts_bm.c')
-rw-r--r--lib/ts_bm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/ts_bm.c b/lib/ts_bm.c
index d90822c..4a7fce7 100644
--- a/lib/ts_bm.c
+++ b/lib/ts_bm.c
@@ -63,7 +63,7 @@ static unsigned int bm_find(struct ts_config *conf, struct ts_state *state)
struct ts_bm *bm = ts_config_priv(conf);
unsigned int i, text_len, consumed = state->offset;
const u8 *text;
- int shift = bm->patlen, bs;
+ int shift = bm->patlen - 1, bs;
for (;;) {
text_len = conf->get_next_block(consumed, &text, conf, state);

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