libclamav/matcher-bm.c: micro-optimization

16 years ago · f28db33f85
parent f1e02ed252
commit f28db33f85
2 changed files with 8 additions and 0 deletions
--- a/4
+++ b/4
@ -1,3 +1,7 @@
+Thu Aug 20 00:34:39 CEST 2009 (tk)
+----------------------------------
+ * libclamav/matcher-bm.c: micro-optimization
+
 Tue Aug 18 23:52:20 CEST 2009 (tk)
 ----------------------------------
 * libclamav/cpio.c: wrap unistd.h, reported by Nigel Horne
--- a/libclamav/matcher-bm.c
+++ b/libclamav/matcher-bm.c
@ -178,6 +178,10 @@ int cli_bm_scanbuff(const unsigned char *buffer, uint32_t length, const char **v
 	if(shift == 0) {
 	    prefix = buffer[i - BM_MIN_LENGTH + BM_BLOCK_SIZE];
 	    p = root->bm_suffix[idx];
+	    if(p && p->cnt == 1 && p->pattern0 != prefix) {
+		i++;
+		continue;
+	    }
 	    pchain = 0;
 	    while(p) {
 		if(p->pattern0 != prefix) {