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      1 /*
      2  * Copyright 2019-2025 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 "internal/e_os.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     /* A failure to push cannot be handled so we ignore the result. */
     26     (void)sk_OPENSSL_CSTRING_push(names, name);
     27 }
     28 
     29 void print_names(BIO *out, STACK_OF(OPENSSL_CSTRING) *names)
     30 {
     31     int i = sk_OPENSSL_CSTRING_num(names);
     32     int j;
     33 
     34     sk_OPENSSL_CSTRING_sort(names);
     35     if (i > 1)
     36         BIO_printf(out, "{ ");
     37     for (j = 0; j < i; j++) {
     38         const char *name = sk_OPENSSL_CSTRING_value(names, j);
     39 
     40         if (j > 0)
     41             BIO_printf(out, ", ");
     42         BIO_printf(out, "%s", name);
     43     }
     44     if (i > 1)
     45         BIO_printf(out, " }");
     46 }
     47