-void sk_set_cmp_func(sk,c)
-STACK *sk;
-int (*c)();
- {
- if (sk->comp != c)
- sk->sorted=0;
- sk->comp=c;
- }
-
-STACK *sk_dup(sk)
-STACK *sk;
- {
- STACK *ret;
- char **s;
-
- if ((ret=sk_new(sk->comp)) == NULL) goto err;
- s=(char **)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:
- return(NULL);
- }
-
-STACK *sk_new(c)
-int (*c)();
- {
- STACK *ret;
- int i;
-
- if ((ret=(STACK *)Malloc(sizeof(STACK))) == NULL)
- goto err0;
- if ((ret->data=(char **)Malloc(sizeof(char *)*MIN_NODES)) == NULL)
- goto err1;
- 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);
-err1:
- Free((char *)ret);
-err0:
- return(NULL);
- }
-
-int sk_insert(st,data,loc)
-STACK *st;
-char *data;
-int loc;
- {
- char **s;
-
- if (st->num_alloc <= st->num+1)
- {
- s=(char **)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=(char **)st->data;
- t=(char **)&(st->data[1]);
- for (i=st->num; i>loc; i--)
- t[i]=f[i];
-
-#ifdef undef /* no memmove on sunos :-( */
- memmove( (char *)&(st->data[loc+1]),
- (char *)&(st->data[loc]),
- sizeof(char *)*(st->num-loc));
-#endif
- st->data[loc]=data;
- }
- st->num++;
- st->sorted=0;
- return(st->num);
- }
-
-char *sk_delete_ptr(st,p)
-STACK *st;
-char *p;
- {
- int i;
-
- for (i=0; i<st->num; i++)
- if (st->data[i] == p)
- return(sk_delete(st,i));
- return(NULL);
- }
-
-char *sk_delete(st,loc)
-STACK *st;
-int loc;
- {
- char *ret;
- int i,j;
-
- if ((st->num == 0) || (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);
- }
-
-int sk_find(st,data)
-STACK *st;
-char *data;
- {
- char **r;
- int i;
- int (*comp_func)();
-
- if (st->comp == NULL)
- {
- for (i=0; i<st->num; i++)
- if (st->data[i] == data)
- return(i);
- return(-1);
- }
- comp_func=(int (*)())st->comp;
- if (!st->sorted)
- {
- qsort((char *)st->data,st->num,sizeof(char *),FP_ICC comp_func);
- st->sorted=1;
- }
- if (data == NULL) return(-1);
- r=(char **)bsearch(&data,(char *)st->data,
- st->num,sizeof(char *),FP_ICC comp_func);
- if (r == NULL) return(-1);
- i=(int)(r-st->data);
- for ( ; i>0; i--)
- if ((*st->comp)(&(st->data[i-1]),&data) < 0)
- break;
- return(i);
- }
-
-int sk_push(st,data)
-STACK *st;
-char *data;
- {
- return(sk_insert(st,data,st->num));
- }
-
-int sk_unshift(st,data)
-STACK *st;
-char *data;
- {
- return(sk_insert(st,data,0));
- }
-
-char *sk_shift(st)
-STACK *st;
- {
- if (st == NULL) return(NULL);
- if (st->num <= 0) return(NULL);
- return(sk_delete(st,0));
- }
-
-char *sk_pop(st)
-STACK *st;
- {
- if (st == NULL) return(NULL);
- if (st->num <= 0) return(NULL);
- return(sk_delete(st,st->num-1));
- }
-
-void sk_zero(st)
-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(st,func)
-STACK *st;
-void (*func)();
- {
- 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(st)
-STACK *st;
- {
- if (st == NULL) return;
- if (st->data != NULL) Free((char *)st->data);
- Free((char *)st);
- }
+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;
+
+ return old;
+}
+
+_STACK *sk_dup(_STACK *sk)
+{
+ _STACK *ret;
+ char **s;
+
+ if ((ret = sk_new(sk->comp)) == NULL)
+ goto err;
+ s = 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:
+ sk_free(ret);
+ return (NULL);
+}
+
+_STACK *sk_deep_copy(_STACK *sk, void *(*copy_func) (void *),
+ void (*free_func) (void *))
+{
+ _STACK *ret;
+ int i;
+
+ if ((ret = OPENSSL_malloc(sizeof(_STACK))) == NULL)
+ return ret;
+ ret->comp = sk->comp;
+ ret->sorted = sk->sorted;
+ ret->num = sk->num;
+ ret->num_alloc = sk->num > MIN_NODES ? sk->num : MIN_NODES;
+ ret->data = OPENSSL_malloc(sizeof(*ret->data) * ret->num_alloc);
+ if (ret->data == NULL) {
+ OPENSSL_free(ret);
+ return NULL;
+ }
+ for (i = 0; i < ret->num_alloc; i++)
+ ret->data[i] = NULL;
+
+ for (i = 0; i < ret->num; ++i) {
+ if (sk->data[i] == NULL)
+ continue;
+ if ((ret->data[i] = copy_func(sk->data[i])) == NULL) {
+ while (--i >= 0)
+ if (ret->data[i] != NULL)
+ free_func(ret->data[i]);
+ sk_free(ret);
+ return NULL;
+ }
+ }
+ return ret;
+}
+
+_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(*ret->data) * 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:
+ 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 {
+ memmove(&(st->data[loc + 1]),
+ &(st->data[loc]), sizeof(char *) * (st->num - loc));
+ st->data[loc] = data;
+ }
+ st->num++;
+ st->sorted = 0;
+ return (st->num);
+}
+
+void *sk_delete_ptr(_STACK *st, void *p)
+{
+ int i;
+
+ 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);
+}
+
+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);
+}
+
+int sk_find(_STACK *st, void *data)
+{
+ 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);
+}
+
+int sk_push(_STACK *st, void *data)
+{
+ return (sk_insert(st, data, st->num));
+}
+
+int sk_unshift(_STACK *st, void *data)
+{
+ 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));
+}
+
+void *sk_pop(_STACK *st)
+{
+ 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(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;
+ OPENSSL_free(st->data);
+ OPENSSL_free(st);
+}
+
+int sk_num(const _STACK *st)
+{
+ 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];
+}
+
+void *sk_set(_STACK *st, int i, void *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;
+ }
+}
projects / openssl.git / blobdiff