/* * Implementation of the symbol table type. * * Author : Stephen Smalley, <sds@epoch.ncsc.mil> */ #include <linux/kernel.h> #include <linux/slab.h> #include <linux/string.h> #include <linux/errno.h> #include "symtab.h" static unsigned int symhash(struct hashtab *h, void *key) { char *p, *keyp; unsigned int size; unsigned int val; val = 0; keyp = key; size = strlen(keyp); for (p = keyp; (p - keyp) < size; p++) val = (val << 4 | (val >> (8*sizeof(unsigned int)-4))) ^ (*p); return val & (h->size - 1); } static int symcmp(struct hashtab *h, void *key1, void *key2) { char *keyp1, *keyp2; keyp1 = key1; keyp2 = key2; return strcmp(keyp1, keyp2); } int symtab_init(struct symtab *s, unsigned int size) { s->table = hashtab_create(symhash, symcmp, size); if (!s->table) return -1; s->nprim = 0; return 0; }