hackedteam/core-android-native

/* Author : Stephen Smalley, <sds@epoch.ncsc.mil> */

/* FLASK */

/*
 * Implementation of the symbol table type.
 */

#include <string.h>
#include <sepol/policydb/hashtab.h>
#include <sepol/policydb/symtab.h>

static unsigned int symhash(hashtab_t h, hashtab_key_t key)
{
    char *p, *keyp;
    size_t size;
    unsigned int val;

    val = 0;
    keyp = (char *)key;
    size = strlen(keyp);
    for (p = keyp; ((size_t) (p - keyp)) < size; p++)
        val =
            (val << 4 | (val >> (8 * sizeof(unsigned int) - 4))) ^ (*p);
    return val & (h->size - 1);
}

static int symcmp(hashtab_t h
          __attribute__ ((unused)), hashtab_key_t key1,
          hashtab_key_t key2)
{
    char *keyp1, *keyp2;

    keyp1 = (char *)key1;
    keyp2 = (char *)key2;
    return strcmp(keyp1, keyp2);
}

int symtab_init(symtab_t * s, unsigned int size)
{
    s->table = hashtab_create(symhash, symcmp, size);
    if (!s->table)
        return -1;
    s->nprim = 0;
    return 0;
}

void symtab_destroy(symtab_t * s)
{
    if (!s)
        return;
    if (s->table)
        hashtab_destroy(s->table);
    return;
}
/* FLASK */