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-rw-r--r--crypto/stack/stack.c454
1 files changed, 235 insertions, 219 deletions
diff --git a/crypto/stack/stack.c b/crypto/stack/stack.c
index 76cf1a116897..331f907190f7 100644
--- a/crypto/stack/stack.c
+++ b/crypto/stack/stack.c
@@ -5,21 +5,21 @@
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
- *
+ *
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
+ *
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
@@ -34,10 +34,10 @@
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
+ * 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
+ *
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,17 +49,18 @@
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- *
+ *
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
-/* Code for stacks
+/*-
+ * Code for stacks
* Author - Eric Young v 1.0
- * 1.2 eay 12-Mar-97 - Modified sk_find so that it _DOES_ return the
- * lowest index for the searched item.
+ * 1.2 eay 12-Mar-97 - Modified sk_find so that it _DOES_ return the
+ * lowest index for the searched item.
*
* 1.1 eay - Take from netdb and added to SSLeay
*
@@ -71,264 +72,279 @@
#include <openssl/objects.h>
#undef MIN_NODES
-#define MIN_NODES 4
+#define MIN_NODES 4
-const char STACK_version[]="Stack" OPENSSL_VERSION_PTEXT;
+const char STACK_version[] = "Stack" OPENSSL_VERSION_PTEXT;
#include <errno.h>
-int (*sk_set_cmp_func(_STACK *sk, int (*c)(const void *, const void *)))
- (const void *, const void *)
- {
- int (*old)(const void *,const void *)=sk->comp;
+int (*sk_set_cmp_func(_STACK *sk, int (*c) (const void *, const void *)))
+ (const void *, const void *) {
+ int (*old) (const void *, const void *) = sk->comp;
- if (sk->comp != c)
- sk->sorted=0;
- sk->comp=c;
+ if (sk->comp != c)
+ sk->sorted = 0;
+ sk->comp = c;
- return old;
- }
+ return old;
+}
_STACK *sk_dup(_STACK *sk)
- {
- _STACK *ret;
- char **s;
-
- if ((ret=sk_new(sk->comp)) == NULL) goto err;
- s=(char **)OPENSSL_realloc((char *)ret->data,
- (unsigned int)sizeof(char *)*sk->num_alloc);
- if (s == NULL) goto err;
- ret->data=s;
-
- ret->num=sk->num;
- memcpy(ret->data,sk->data,sizeof(char *)*sk->num);
- ret->sorted=sk->sorted;
- ret->num_alloc=sk->num_alloc;
- ret->comp=sk->comp;
- return(ret);
-err:
- if(ret)
- sk_free(ret);
- return(NULL);
- }
+{
+ _STACK *ret;
+ char **s;
+
+ if ((ret = sk_new(sk->comp)) == NULL)
+ goto err;
+ s = (char **)OPENSSL_realloc((char *)ret->data,
+ (unsigned int)sizeof(char *) *
+ sk->num_alloc);
+ if (s == NULL)
+ goto err;
+ ret->data = s;
+
+ ret->num = sk->num;
+ memcpy(ret->data, sk->data, sizeof(char *) * sk->num);
+ ret->sorted = sk->sorted;
+ ret->num_alloc = sk->num_alloc;
+ ret->comp = sk->comp;
+ return (ret);
+ err:
+ if (ret)
+ sk_free(ret);
+ return (NULL);
+}
_STACK *sk_new_null(void)
- {
- return sk_new((int (*)(const void *, const void *))0);
- }
-
-_STACK *sk_new(int (*c)(const void *, const void *))
- {
- _STACK *ret;
- int i;
-
- if ((ret=OPENSSL_malloc(sizeof(_STACK))) == NULL)
- goto err;
- if ((ret->data=OPENSSL_malloc(sizeof(char *)*MIN_NODES)) == NULL)
- goto err;
- for (i=0; i<MIN_NODES; i++)
- ret->data[i]=NULL;
- ret->comp=c;
- ret->num_alloc=MIN_NODES;
- ret->num=0;
- ret->sorted=0;
- return(ret);
-err:
- if(ret)
- OPENSSL_free(ret);
- return(NULL);
- }
+{
+ return sk_new((int (*)(const void *, const void *))0);
+}
+
+_STACK *sk_new(int (*c) (const void *, const void *))
+{
+ _STACK *ret;
+ int i;
+
+ if ((ret = OPENSSL_malloc(sizeof(_STACK))) == NULL)
+ goto err;
+ if ((ret->data = OPENSSL_malloc(sizeof(char *) * MIN_NODES)) == NULL)
+ goto err;
+ for (i = 0; i < MIN_NODES; i++)
+ ret->data[i] = NULL;
+ ret->comp = c;
+ ret->num_alloc = MIN_NODES;
+ ret->num = 0;
+ ret->sorted = 0;
+ return (ret);
+ err:
+ if (ret)
+ OPENSSL_free(ret);
+ return (NULL);
+}
int sk_insert(_STACK *st, void *data, int loc)
- {
- char **s;
-
- if(st == NULL) return 0;
- if (st->num_alloc <= st->num+1)
- {
- s=OPENSSL_realloc((char *)st->data,
- (unsigned int)sizeof(char *)*st->num_alloc*2);
- if (s == NULL)
- return(0);
- st->data=s;
- st->num_alloc*=2;
- }
- if ((loc >= (int)st->num) || (loc < 0))
- st->data[st->num]=data;
- else
- {
- int i;
- char **f,**t;
-
- f=st->data;
- t=&(st->data[1]);
- for (i=st->num; i>=loc; i--)
- t[i]=f[i];
-
-#ifdef undef /* no memmove on sunos :-( */
- memmove(&(st->data[loc+1]),
- &(st->data[loc]),
- sizeof(char *)*(st->num-loc));
+{
+ char **s;
+
+ if (st == NULL)
+ return 0;
+ if (st->num_alloc <= st->num + 1) {
+ s = OPENSSL_realloc((char *)st->data,
+ (unsigned int)sizeof(char *) * st->num_alloc * 2);
+ if (s == NULL)
+ return (0);
+ st->data = s;
+ st->num_alloc *= 2;
+ }
+ if ((loc >= (int)st->num) || (loc < 0))
+ st->data[st->num] = data;
+ else {
+ int i;
+ char **f, **t;
+
+ f = st->data;
+ t = &(st->data[1]);
+ for (i = st->num; i >= loc; i--)
+ t[i] = f[i];
+
+#ifdef undef /* no memmove on sunos :-( */
+ memmove(&(st->data[loc + 1]),
+ &(st->data[loc]), sizeof(char *) * (st->num - loc));
#endif
- st->data[loc]=data;
- }
- st->num++;
- st->sorted=0;
- return(st->num);
- }
+ st->data[loc] = data;
+ }
+ st->num++;
+ st->sorted = 0;
+ return (st->num);
+}
void *sk_delete_ptr(_STACK *st, void *p)
- {
- int i;
+{
+ int i;
- for (i=0; i<st->num; i++)
- if (st->data[i] == p)
- return(sk_delete(st,i));
- return(NULL);
- }
+ for (i = 0; i < st->num; i++)
+ if (st->data[i] == p)
+ return (sk_delete(st, i));
+ return (NULL);
+}
void *sk_delete(_STACK *st, int loc)
- {
- char *ret;
- int i,j;
-
- if(!st || (loc < 0) || (loc >= st->num)) return NULL;
-
- ret=st->data[loc];
- if (loc != st->num-1)
- {
- j=st->num-1;
- for (i=loc; i<j; i++)
- st->data[i]=st->data[i+1];
- /* In theory memcpy is not safe for this
- * memcpy( &(st->data[loc]),
- * &(st->data[loc+1]),
- * sizeof(char *)*(st->num-loc-1));
- */
- }
- st->num--;
- return(ret);
- }
+{
+ char *ret;
+ int i, j;
+
+ if (!st || (loc < 0) || (loc >= st->num))
+ return NULL;
+
+ ret = st->data[loc];
+ if (loc != st->num - 1) {
+ j = st->num - 1;
+ for (i = loc; i < j; i++)
+ st->data[i] = st->data[i + 1];
+ /*
+ * In theory memcpy is not safe for this memcpy( &(st->data[loc]),
+ * &(st->data[loc+1]), sizeof(char *)*(st->num-loc-1));
+ */
+ }
+ st->num--;
+ return (ret);
+}
static int internal_find(_STACK *st, void *data, int ret_val_options)
- {
- const void * const *r;
- int i;
-
- if(st == NULL) return -1;
-
- if (st->comp == NULL)
- {
- for (i=0; i<st->num; i++)
- if (st->data[i] == data)
- return(i);
- return(-1);
- }
- sk_sort(st);
- if (data == NULL) return(-1);
- r=OBJ_bsearch_ex_(&data,st->data,st->num,sizeof(void *),st->comp,
- ret_val_options);
- if (r == NULL) return(-1);
- return (int)((char **)r-st->data);
- }
+{
+ const void *const *r;
+ int i;
+
+ if (st == NULL)
+ return -1;
+
+ if (st->comp == NULL) {
+ for (i = 0; i < st->num; i++)
+ if (st->data[i] == data)
+ return (i);
+ return (-1);
+ }
+ sk_sort(st);
+ if (data == NULL)
+ return (-1);
+ r = OBJ_bsearch_ex_(&data, st->data, st->num, sizeof(void *), st->comp,
+ ret_val_options);
+ if (r == NULL)
+ return (-1);
+ return (int)((char **)r - st->data);
+}
int sk_find(_STACK *st, void *data)
- {
- return internal_find(st, data, OBJ_BSEARCH_FIRST_VALUE_ON_MATCH);
- }
+{
+ return internal_find(st, data, OBJ_BSEARCH_FIRST_VALUE_ON_MATCH);
+}
+
int sk_find_ex(_STACK *st, void *data)
- {
- return internal_find(st, data, OBJ_BSEARCH_VALUE_ON_NOMATCH);
- }
+{
+ return internal_find(st, data, OBJ_BSEARCH_VALUE_ON_NOMATCH);
+}
int sk_push(_STACK *st, void *data)
- {
- return(sk_insert(st,data,st->num));
- }
+{
+ return (sk_insert(st, data, st->num));
+}
int sk_unshift(_STACK *st, void *data)
- {
- return(sk_insert(st,data,0));
- }
+{
+ return (sk_insert(st, data, 0));
+}
void *sk_shift(_STACK *st)
- {
- if (st == NULL) return(NULL);
- if (st->num <= 0) return(NULL);
- return(sk_delete(st,0));
- }
+{
+ if (st == NULL)
+ return (NULL);
+ if (st->num <= 0)
+ return (NULL);
+ return (sk_delete(st, 0));
+}
void *sk_pop(_STACK *st)
- {
- if (st == NULL) return(NULL);
- if (st->num <= 0) return(NULL);
- return(sk_delete(st,st->num-1));
- }
+{
+ if (st == NULL)
+ return (NULL);
+ if (st->num <= 0)
+ return (NULL);
+ return (sk_delete(st, st->num - 1));
+}
void sk_zero(_STACK *st)
- {
- if (st == NULL) return;
- if (st->num <= 0) return;
- memset((char *)st->data,0,sizeof(st->data)*st->num);
- st->num=0;
- }
-
-void sk_pop_free(_STACK *st, void (*func)(void *))
- {
- int i;
-
- if (st == NULL) return;
- for (i=0; i<st->num; i++)
- if (st->data[i] != NULL)
- func(st->data[i]);
- sk_free(st);
- }
+{
+ if (st == NULL)
+ return;
+ if (st->num <= 0)
+ return;
+ memset((char *)st->data, 0, sizeof(*st->data) * st->num);
+ st->num = 0;
+}
+
+void sk_pop_free(_STACK *st, void (*func) (void *))
+{
+ int i;
+
+ if (st == NULL)
+ return;
+ for (i = 0; i < st->num; i++)
+ if (st->data[i] != NULL)
+ func(st->data[i]);
+ sk_free(st);
+}
void sk_free(_STACK *st)
- {
- if (st == NULL) return;
- if (st->data != NULL) OPENSSL_free(st->data);
- OPENSSL_free(st);
- }
+{
+ if (st == NULL)
+ return;
+ if (st->data != NULL)
+ OPENSSL_free(st->data);
+ OPENSSL_free(st);
+}
int sk_num(const _STACK *st)
{
- if(st == NULL) return -1;
- return st->num;
+ if (st == NULL)
+ return -1;
+ return st->num;
}
void *sk_value(const _STACK *st, int i)
{
- if(!st || (i < 0) || (i >= st->num)) return NULL;
- return st->data[i];
+ if (!st || (i < 0) || (i >= st->num))
+ return NULL;
+ return st->data[i];
}
void *sk_set(_STACK *st, int i, void *value)
{
- if(!st || (i < 0) || (i >= st->num)) return NULL;
- return (st->data[i] = value);
+ if (!st || (i < 0) || (i >= st->num))
+ return NULL;
+ return (st->data[i] = value);
}
void sk_sort(_STACK *st)
- {
- if (st && !st->sorted)
- {
- int (*comp_func)(const void *,const void *);
-
- /* same comment as in sk_find ... previously st->comp was declared
- * as a (void*,void*) callback type, but this made the population
- * of the callback pointer illogical - our callbacks compare
- * type** with type**, so we leave the casting until absolutely
- * necessary (ie. "now"). */
- comp_func=(int (*)(const void *,const void *))(st->comp);
- qsort(st->data,st->num,sizeof(char *), comp_func);
- st->sorted=1;
- }
- }
+{
+ if (st && !st->sorted) {
+ int (*comp_func) (const void *, const void *);
+
+ /*
+ * same comment as in sk_find ... previously st->comp was declared as
+ * a (void*,void*) callback type, but this made the population of the
+ * callback pointer illogical - our callbacks compare type** with
+ * type**, so we leave the casting until absolutely necessary (ie.
+ * "now").
+ */
+ comp_func = (int (*)(const void *, const void *))(st->comp);
+ qsort(st->data, st->num, sizeof(char *), comp_func);
+ st->sorted = 1;
+ }
+}
int sk_is_sorted(const _STACK *st)
- {
- if (!st)
- return 1;
- return st->sorted;
- }
+{
+ if (!st)
+ return 1;
+ return st->sorted;
+}