sys/libkern/zlib.c

136 #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
372      * and move to the first half later to keep a dictionary of at least wSize
567  *      dictionary are very simple and thus fast, and deletions are avoided
712  * Insert string str in the dictionary and set match_head to the previous head
833 int deflateSetDictionary (strm, dictionary, dictLength)
835     const Bytef *dictionary;
843     if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL)
849     strm->adler = adler32(strm->adler, dictionary, dictLength);
855 	dictionary += dictLength - length; /* use the tail of the dictionary */
858     zmemcpy((charf *)s->window, dictionary, length);
1020 	/* Save the adler32 of the preset dictionary: */
1571  * This function does not insert new strings in the dictionary since
1632  * new strings in the dictionary only for unmatched strings or for short
1657          * dictionary, and set hash_head to the head of the hash chain:
1751          * dictionary, and set hash_head to the head of the hash chain:
3042     const Bytef *d,  /* dictionary */
3043     uInt  n));       /* dictionary length */
3064       DICT4,    /* four dictionary check bytes to go */
3065       DICT3,    /* three dictionary check bytes to go */
3066       DICT2,    /* two dictionary check bytes to go */
3067       DICT1,    /* one dictionary check byte to go */
3266       z->msg = (char*)"need dictionary";
3332 int inflateSetDictionary(z, dictionary, dictLength)
3334 const Bytef *dictionary;
3342   if (adler32(1L, dictionary, dictLength) != z->adler) return Z_DATA_ERROR;
3348     dictionary += dictLength - length;
3350   inflate_set_dictionary(z->state->blocks, dictionary, length);
5148 "need dictionary",     /* Z_NEED_DICT       2  */