diff options
author | Rich Salz <rsalz@openssl.org> | 2016-05-20 10:46:29 -0400 |
---|---|---|
committer | Rich Salz <rsalz@openssl.org> | 2016-05-20 10:48:29 -0400 |
commit | 739a1eb1961cdc3b1597a040766f3cb359d095f6 (patch) | |
tree | da90e8dd33e1aa605351b529713901bb1b0f37b8 /crypto/lhash/lhash.c | |
parent | 06593767b21d4ebacc3e6ecc8daedd9d5c5f9f97 (diff) |
Rename lh_xxx,sk_xxx tp OPENSSL_{LH,SK}_xxx
Rename sk_xxx to OPENSSL_sk_xxx and _STACK to OPENSSL_STACK
Rename lh_xxx API to OPENSSL_LH_xxx and LHASH_NODE to OPENSSL_LH_NODE
Make lhash stuff opaque.
Use typedefs for function pointers; makes the code simpler.
Remove CHECKED_xxx macros.
Add documentation; remove old X509-oriented doc.
Add API-compat names for entire old API
Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
Diffstat (limited to 'crypto/lhash/lhash.c')
-rw-r--r-- | crypto/lhash/lhash.c | 124 |
1 files changed, 41 insertions, 83 deletions
diff --git a/crypto/lhash/lhash.c b/crypto/lhash/lhash.c index 9fa46b0927..3e58eea9c5 100644 --- a/crypto/lhash/lhash.c +++ b/crypto/lhash/lhash.c @@ -7,70 +7,33 @@ * https://www.openssl.org/source/license.html */ -/*- - * Code for dynamic hash table routines - * Author - Eric Young v 2.0 - * - * 2.2 eay - added #include "crypto.h" so the memory leak checking code is - * present. eay 18-Jun-98 - * - * 2.1 eay - Added an 'error in last operation' flag. eay 6-May-98 - * - * 2.0 eay - Fixed a bug that occurred when using lh_delete - * from inside lh_doall(). As entries were deleted, - * the 'table' was 'contract()ed', making some entries - * jump from the end of the table to the start, there by - * skipping the lh_doall() processing. eay - 4/12/95 - * - * 1.9 eay - Fixed a memory leak in lh_free, the LHASH_NODEs - * were not being free()ed. 21/11/95 - * - * 1.8 eay - Put the stats routines into a separate file, lh_stats.c - * 19/09/95 - * - * 1.7 eay - Removed the fputs() for realloc failures - the code - * should silently tolerate them. I have also fixed things - * lint complained about 04/05/95 - * - * 1.6 eay - Fixed an invalid pointers in contract/expand 27/07/92 - * - * 1.5 eay - Fixed a misuse of realloc in expand 02/03/1992 - * - * 1.4 eay - Fixed lh_doall so the function can call lh_delete 28/05/91 - * - * 1.3 eay - Fixed a few lint problems 19/3/1991 - * - * 1.2 eay - Fixed lh_doall problem 13/3/1991 - * - * 1.1 eay - Added lh_doall - * - * 1.0 eay - First version - */ #include <stdio.h> #include <string.h> #include <stdlib.h> #include <openssl/crypto.h> #include <openssl/lhash.h> +#include "lhash_lcl.h" + #undef MIN_NODES #define MIN_NODES 16 #define UP_LOAD (2*LH_LOAD_MULT) /* load times 256 (default 2) */ #define DOWN_LOAD (LH_LOAD_MULT) /* load times 256 (default 1) */ -static void expand(_LHASH *lh); -static void contract(_LHASH *lh); -static LHASH_NODE **getrn(_LHASH *lh, const void *data, unsigned long *rhash); +static void expand(OPENSSL_LHASH *lh); +static void contract(OPENSSL_LHASH *lh); +static OPENSSL_LH_NODE **getrn(OPENSSL_LHASH *lh, const void *data, unsigned long *rhash); -_LHASH *lh_new(LHASH_HASH_FN_TYPE h, LHASH_COMP_FN_TYPE c) +OPENSSL_LHASH *OPENSSL_LH_new(OPENSSL_LH_HASHFUNC h, OPENSSL_LH_COMPFUNC c) { - _LHASH *ret; + OPENSSL_LHASH *ret; if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL) goto err0; if ((ret->b = OPENSSL_zalloc(sizeof(*ret->b) * MIN_NODES)) == NULL) goto err1; - ret->comp = ((c == NULL) ? (LHASH_COMP_FN_TYPE)strcmp : c); - ret->hash = ((h == NULL) ? (LHASH_HASH_FN_TYPE)lh_strhash : h); + ret->comp = ((c == NULL) ? (OPENSSL_LH_COMPFUNC)strcmp : c); + ret->hash = ((h == NULL) ? (OPENSSL_LH_HASHFUNC)OPENSSL_LH_strhash : h); ret->num_nodes = MIN_NODES / 2; ret->num_alloc_nodes = MIN_NODES; ret->pmax = MIN_NODES / 2; @@ -84,10 +47,10 @@ _LHASH *lh_new(LHASH_HASH_FN_TYPE h, LHASH_COMP_FN_TYPE c) return (NULL); } -void lh_free(_LHASH *lh) +void OPENSSL_LH_free(OPENSSL_LHASH *lh) { unsigned int i; - LHASH_NODE *n, *nn; + OPENSSL_LH_NODE *n, *nn; if (lh == NULL) return; @@ -104,10 +67,10 @@ void lh_free(_LHASH *lh) OPENSSL_free(lh); } -void *lh_insert(_LHASH *lh, void *data) +void *OPENSSL_LH_insert(OPENSSL_LHASH *lh, void *data) { unsigned long hash; - LHASH_NODE *nn, **rn; + OPENSSL_LH_NODE *nn, **rn; void *ret; lh->error = 0; @@ -137,10 +100,10 @@ void *lh_insert(_LHASH *lh, void *data) return (ret); } -void *lh_delete(_LHASH *lh, const void *data) +void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data) { unsigned long hash; - LHASH_NODE *nn, **rn; + OPENSSL_LH_NODE *nn, **rn; void *ret; lh->error = 0; @@ -165,10 +128,10 @@ void *lh_delete(_LHASH *lh, const void *data) return (ret); } -void *lh_retrieve(_LHASH *lh, const void *data) +void *OPENSSL_LH_retrieve(OPENSSL_LHASH *lh, const void *data) { unsigned long hash; - LHASH_NODE **rn; + OPENSSL_LH_NODE **rn; void *ret; lh->error = 0; @@ -184,11 +147,12 @@ void *lh_retrieve(_LHASH *lh, const void *data) return (ret); } -static void doall_util_fn(_LHASH *lh, int use_arg, LHASH_DOALL_FN_TYPE func, - LHASH_DOALL_ARG_FN_TYPE func_arg, void *arg) +static void doall_util_fn(OPENSSL_LHASH *lh, int use_arg, + OPENSSL_LH_DOALL_FUNC func, + OPENSSL_LH_DOALL_FUNCARG func_arg, void *arg) { int i; - LHASH_NODE *a, *n; + OPENSSL_LH_NODE *a, *n; if (lh == NULL) return; @@ -200,13 +164,6 @@ static void doall_util_fn(_LHASH *lh, int use_arg, LHASH_DOALL_FN_TYPE func, for (i = lh->num_nodes - 1; i >= 0; i--) { a = lh->b[i]; while (a != NULL) { - /* - * 28/05/91 - eay - n added so items can be deleted via lh_doall - */ - /* - * 22/05/08 - ben - eh? since a is not passed, this should not be - * needed - */ n = a->next; if (use_arg) func_arg(a->data, arg); @@ -217,19 +174,19 @@ static void doall_util_fn(_LHASH *lh, int use_arg, LHASH_DOALL_FN_TYPE func, } } -void lh_doall(_LHASH *lh, LHASH_DOALL_FN_TYPE func) +void OPENSSL_LH_doall(OPENSSL_LHASH *lh, OPENSSL_LH_DOALL_FUNC func) { - doall_util_fn(lh, 0, func, (LHASH_DOALL_ARG_FN_TYPE)0, NULL); + doall_util_fn(lh, 0, func, (OPENSSL_LH_DOALL_FUNCARG)0, NULL); } -void lh_doall_arg(_LHASH *lh, LHASH_DOALL_ARG_FN_TYPE func, void *arg) +void OPENSSL_LH_doall_arg(OPENSSL_LHASH *lh, OPENSSL_LH_DOALL_FUNCARG func, void *arg) { - doall_util_fn(lh, 1, (LHASH_DOALL_FN_TYPE)0, func, arg); + doall_util_fn(lh, 1, (OPENSSL_LH_DOALL_FUNC)0, func, arg); } -static void expand(_LHASH *lh) +static void expand(OPENSSL_LHASH *lh) { - LHASH_NODE **n, **n1, **n2, *np; + OPENSSL_LH_NODE **n, **n1, **n2, *np; unsigned int p, i, j; unsigned long hash, nni; @@ -238,7 +195,7 @@ static void expand(_LHASH *lh) p = (int)lh->p++; n1 = &(lh->b[p]); n2 = &(lh->b[p + (int)lh->pmax]); - *n2 = NULL; /* 27/07/92 - eay - undefined pointer bug */ + *n2 = NULL; nni = lh->num_alloc_nodes; for (np = *n1; np != NULL;) { @@ -254,7 +211,7 @@ static void expand(_LHASH *lh) if ((lh->p) >= lh->pmax) { j = (int)lh->num_alloc_nodes * 2; - n = OPENSSL_realloc(lh->b, (int)(sizeof(LHASH_NODE *) * j)); + n = OPENSSL_realloc(lh->b, (int)(sizeof(OPENSSL_LH_NODE *) * j)); if (n == NULL) { /* fputs("realloc error in lhash",stderr); */ lh->error++; @@ -271,15 +228,15 @@ static void expand(_LHASH *lh) } } -static void contract(_LHASH *lh) +static void contract(OPENSSL_LHASH *lh) { - LHASH_NODE **n, *n1, *np; + OPENSSL_LH_NODE **n, *n1, *np; np = lh->b[lh->p + lh->pmax - 1]; lh->b[lh->p + lh->pmax - 1] = NULL; /* 24/07-92 - eay - weird but :-( */ if (lh->p == 0) { n = OPENSSL_realloc(lh->b, - (unsigned int)(sizeof(LHASH_NODE *) * lh->pmax)); + (unsigned int)(sizeof(OPENSSL_LH_NODE *) * lh->pmax)); if (n == NULL) { /* fputs("realloc error in lhash",stderr); */ lh->error++; @@ -306,11 +263,12 @@ static void contract(_LHASH *lh) } } -static LHASH_NODE **getrn(_LHASH *lh, const void *data, unsigned long *rhash) +static OPENSSL_LH_NODE **getrn(OPENSSL_LHASH *lh, + const void *data, unsigned long *rhash) { - LHASH_NODE **ret, *n1; + OPENSSL_LH_NODE **ret, *n1; unsigned long hash, nn; - LHASH_COMP_FN_TYPE cf; + OPENSSL_LH_COMPFUNC cf; hash = (*(lh->hash)) (data); lh->num_hash_calls++; @@ -341,7 +299,7 @@ static LHASH_NODE **getrn(_LHASH *lh, const void *data, unsigned long *rhash) * collisions on /usr/dict/words and it distributes on %2^n quite well, not * as good as MD5, but still good. */ -unsigned long lh_strhash(const char *c) +unsigned long OPENSSL_LH_strhash(const char *c) { unsigned long ret = 0; long n; @@ -369,22 +327,22 @@ unsigned long lh_strhash(const char *c) return ((ret >> 16) ^ ret); } -unsigned long lh_num_items(const _LHASH *lh) +unsigned long OPENSSL_LH_num_items(const OPENSSL_LHASH *lh) { return lh ? lh->num_items : 0; } -unsigned long lh_get_down_load(const _LHASH *lh) +unsigned long OPENSSL_LH_get_down_load(const OPENSSL_LHASH *lh) { return lh->down_load; } -void lh_set_down_load(_LHASH *lh, unsigned long down_load) +void OPENSSL_LH_set_down_load(OPENSSL_LHASH *lh, unsigned long down_load) { lh->down_load = down_load; } -int lh_error(_LHASH *lh) +int OPENSSL_LH_error(OPENSSL_LHASH *lh) { return lh->error; } |