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      1 /*
      2  * Copyright 2019-2022 The OpenSSL Project Authors. All Rights Reserved.
      3  *
      4  * Licensed under the Apache License 2.0 (the "License").  You may not use
      5  * this file except in compliance with the License.  You can obtain a copy
      6  * in the file LICENSE in the source distribution or at
      7  * https://www.openssl.org/source/license.html
      8  */
      9 
     10 #include <string.h>
     11 #include <openssl/bio.h>
     12 #include <openssl/safestack.h>
     13 #include "names.h"
     14 #include "openssl/crypto.h"
     15 
     16 int name_cmp(const char * const *a, const char * const *b)
     17 {
     18     return OPENSSL_strcasecmp(*a, *b);
     19 }
     20 
     21 void collect_names(const char *name, void *vdata)
     22 {
     23     STACK_OF(OPENSSL_CSTRING) *names = vdata;
     24 
     25     sk_OPENSSL_CSTRING_push(names, name);
     26 }
     27 
     28 void print_names(BIO *out, STACK_OF(OPENSSL_CSTRING) *names)
     29 {
     30     int i = sk_OPENSSL_CSTRING_num(names);
     31     int j;
     32 
     33     sk_OPENSSL_CSTRING_sort(names);
     34     if (i > 1)
     35         BIO_printf(out, "{ ");
     36     for (j = 0; j < i; j++) {
     37         const char *name = sk_OPENSSL_CSTRING_value(names, j);
     38 
     39         if (j > 0)
     40             BIO_printf(out, ", ");
     41         BIO_printf(out, "%s", name);
     42     }
     43     if (i > 1)
     44         BIO_printf(out, " }");
     45 }
     46