dzwdz/catboy
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Keep hashing '\0' until color is not black

Browse Source 
Actually uses the rest of the hash state this way.
This commit is contained in:
Curtis McEnroe 2018-08-14 14:04:20 -04:00
parent ed9961410e
commit 398f752322
No known key found for this signature in database
GPG Key ID: CEA2F97ADCFCD77C
1 changed files with 11 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
handle.c
View File

@ -25,16 +25,22 @@
#include "chat.h" #include "chat.h"
// Adapted from <https://github.com/cbreeden/fxhash/blob/master/lib.rs>. // Adapted from <https://github.com/cbreeden/fxhash/blob/master/lib.rs>.
static uint32_t hashChar(uint32_t hash, char ch) {
hash = (hash << 5) | (hash >> 27);
hash ^= ch;
hash *= 0x27220A95;
return hash;
}
static int color(const char *str) { static int color(const char *str) {
if (!str) return IRC_GRAY; if (!str) return IRC_GRAY;
uint32_t hash = 0; uint32_t hash = 0;
for (; str[0]; ++str) { for (; str[0]; ++str) {
hash = (hash << 5) | (hash >> 27); hash = hashChar(hash, str[0]);
hash ^= str[0];
hash *= 0x27220A95;
} }
hash &= IRC_LIGHT_GRAY; while (IRC_BLACK == (hash & IRC_LIGHT_GRAY)) {
return (hash == IRC_BLACK) ? IRC_GRAY : hash; hash = hashChar(hash, '\0');
}
return (hash & IRC_LIGHT_GRAY);
} }
static char *paramField(char **params) { static char *paramField(char **params) {