openssl/crypto/engine/tb_rand.c - Issue 2072073002: Delete bundled copy of OpenSSL and replace with README.

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Issue 2072073002: Delete bundled copy of OpenSSL and replace with README. (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master

Patch Set: Delete bundled copy of OpenSSL and replace with README. Created 4 years, 6 months ago

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1 /* ====================================================================

2 * Copyright (c) 2000 The OpenSSL Project. All rights reserved.

3 *

4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions

6 * are met:

7 *

8 * 1. Redistributions of source code must retain the above copyright

9 * notice, this list of conditions and the following disclaimer.

10 *

11 * 2. Redistributions in binary form must reproduce the above copyright

12 * notice, this list of conditions and the following disclaimer in

13 * the documentation and/or other materials provided with the

14 * distribution.

15 *

16 * 3. All advertising materials mentioning features or use of this

17 * software must display the following acknowledgment:

18 * "This product includes software developed by the OpenSSL Project

19 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"

20 *

21 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

22 * endorse or promote products derived from this software without

23 * prior written permission. For written permission, please contact

24 * licensing@OpenSSL.org.

25 *

26 * 5. Products derived from this software may not be called "OpenSSL"

27 * nor may "OpenSSL" appear in their names without prior written

28 * permission of the OpenSSL Project.

29 *

30 * 6. Redistributions of any form whatsoever must retain the following

31 * acknowledgment:

32 * "This product includes software developed by the OpenSSL Project

33 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"

34 *

35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR

39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

46 * OF THE POSSIBILITY OF SUCH DAMAGE.

47 * ====================================================================

48 *

49 * This product includes cryptographic software written by Eric Young

50 * (eay@cryptsoft.com). This product includes software written by Tim

51 * Hudson (tjh@cryptsoft.com).

52 *

53 */

54

55 #include "eng_int.h"

56

57 /* If this symbol is defined then ENGINE_get_default_RAND(), the function that i s

58 * used by RAND to hook in implementation code and cache defaults (etc), will

59 * display brief debugging summaries to stderr with the 'nid'. */

60 /* #define ENGINE_RAND_DEBUG */

61

62 static ENGINE_TABLE *rand_table = NULL;

63 static const int dummy_nid = 1;

64

65 void ENGINE_unregister_RAND(ENGINE *e)

66 {

67 engine_table_unregister(&rand_table, e);

68 }

69

70 static void engine_unregister_all_RAND(void)

71 {

72 engine_table_cleanup(&rand_table);

73 }

74

75 int ENGINE_register_RAND(ENGINE *e)

76 {

77 if(e->rand_meth)

78 return engine_table_register(&rand_table,

79 engine_unregister_all_RAND, e, &dummy_nid, 1, 0) ;

80 return 1;

81 }

82

83 void ENGINE_register_all_RAND()

84 {

85 ENGINE *e;

86

87 for(e=ENGINE_get_first() ; e ; e=ENGINE_get_next(e))

88 ENGINE_register_RAND(e);

89 }

90

91 int ENGINE_set_default_RAND(ENGINE *e)

92 {

93 if(e->rand_meth)

94 return engine_table_register(&rand_table,

95 engine_unregister_all_RAND, e, &dummy_nid, 1, 1) ;

96 return 1;

97 }

98

99 /* Exposed API function to get a functional reference from the implementation

100 * table (ie. try to get a functional reference from the tabled structural

101 * references). */

102 ENGINE *ENGINE_get_default_RAND(void)

103 {

104 return engine_table_select(&rand_table, dummy_nid);

105 }

106

107 /* Obtains an RAND implementation from an ENGINE functional reference */

108 const RAND_METHOD ENGINE_get_RAND(const ENGINE e)

109 {

110 return e->rand_meth;

111 }

112

113 /* Sets an RAND implementation in an ENGINE structure */

114 int ENGINE_set_RAND(ENGINE e, const RAND_METHOD rand_meth)

115 {

116 e->rand_meth = rand_meth;

117 return 1;

118 }

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