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-rw-r--r--dir.c26
1 files changed, 13 insertions, 13 deletions
diff --git a/dir.c b/dir.c
index 5615f33..7f912c7 100644
--- a/dir.c
+++ b/dir.c
@@ -31,22 +31,22 @@ static int common_prefix(const char **pathspec)
if (!slash)
return 0;
+ /*
+ * The first 'prefix' characters of 'path' are common leading
+ * path components among the pathspecs we have seen so far,
+ * including the trailing slash.
+ */
prefix = slash - path + 1;
while ((next = *++pathspec) != NULL) {
- int len = strlen(next);
- if (len >= prefix && !memcmp(path, next, prefix))
+ int len, last_matching_slash = -1;
+ for (len = 0; len < prefix && next[len] == path[len]; len++)
+ if (next[len] == '/')
+ last_matching_slash = len;
+ if (len == prefix)
continue;
- len = prefix - 1;
- for (;;) {
- if (!len)
- return 0;
- if (next[--len] != '/')
- continue;
- if (memcmp(path, next, len+1))
- continue;
- prefix = len + 1;
- break;
- }
+ if (last_matching_slash < 0)
+ return 0;
+ prefix = last_matching_slash + 1;
}
return prefix;
}