diff options
Diffstat (limited to 'modules/luci-base/htdocs/luci-static/resources/cbi.js')
| -rw-r--r-- | modules/luci-base/htdocs/luci-static/resources/cbi.js | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/modules/luci-base/htdocs/luci-static/resources/cbi.js b/modules/luci-base/htdocs/luci-static/resources/cbi.js index 0e95906812..1607b9af65 100644 --- a/modules/luci-base/htdocs/luci-static/resources/cbi.js +++ b/modules/luci-base/htdocs/luci-static/resources/cbi.js @@ -15,6 +15,15 @@ var cbi_d = []; var cbi_t = []; var cbi_strings = { path: {}, label: {} }; +function s8(bytes, off) { + var n = bytes[off]; + return (n > 0x7F) ? (n - 256) >>> 0 : n; +} + +function u16(bytes, off) { + return ((bytes[off + 1] << 8) + bytes[off]) >>> 0; +} + function sfh(s) { if (s === null || s.length === 0) return null; @@ -48,8 +57,8 @@ function sfh(s) { off = 0, tmp; while (len--) { - hash += ((bytes[off + 1] << 8) + bytes[off]) >>> 0; - tmp = ((((bytes[off + 3] << 8) + bytes[off + 2]) << 11) ^ hash) >>> 0; + hash += u16(bytes, off); + tmp = ((u16(bytes, off + 2) << 11) ^ hash) >>> 0; hash = ((hash << 16) ^ tmp) >>> 0; hash += hash >>> 11; off += 4; @@ -57,20 +66,20 @@ function sfh(s) { switch ((bytes.length & 3) >>> 0) { case 3: - hash += ((bytes[off + 1] << 8) + bytes[off]) >>> 0; + hash += u16(bytes, off); hash = (hash ^ (hash << 16)) >>> 0; - hash = (hash ^ (bytes[off + 2] << 18)) >>> 0; + hash = (hash ^ (s8(bytes, off + 2) << 18)) >>> 0; hash += hash >>> 11; break; case 2: - hash += ((bytes[off + 1] << 8) + bytes[off]) >>> 0; + hash += u16(bytes, off); hash = (hash ^ (hash << 11)) >>> 0; hash += hash >>> 17; break; case 1: - hash += bytes[off]; + hash += s8(bytes, off); hash = (hash ^ (hash << 10)) >>> 0; hash += hash >>> 1; break; |