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POHow to convert the X509 structure into String?
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  1. POHow to convert the X509 structure into String?
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    copied!<p>I have pointer to the X509 struct, and I want to convert it to the string, how can i do it? I need to get string like it printed in <code>PEM_write_X509</code> function.</p> <pre><code>-----BEGIN CERTIFICATE----- MIIIxjCCB66gAwIBAgIKah4k3wAAAAC/WTANBgkqhkiG9w0BAQUFADBbMRIwEAYK CZImiZPyLGQBGRYCcnUxFjAUBgoJkiaJk/IsZAEZFgZ5YW5kZXgxEjAQBgoJkiaJ k/IsZAEZFgJsZDEZMBcGA1UEAxMQWWFuZGV4RXh0ZXJuYWxDQTAeFw0xMjA5MDQx NDEzMDhaFw0xNDAxMTcxNTE1NDZaMIGQMQswCQYDVQQGEwJSVTEPMA0GA1UECBMG UnVzc2lhMQ8wDQYDVQQHEwZNb3Njb3cxDzANBgNVBAoTBllhbmRleDEMMAoGA1UE CxMDSVRPMRQwEgYDVQQDEwtZYW5kZXggU2VycDEqMCgGCSqGSIb3DQEJARYbc2Vh cmNoLWFkbWluQHlhbmRleC10ZWFtLnJ1MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCB iQKBgQDBXfluaCox4R4D2Y/3mc6O9i3koHtGtHZmZjYm7XdsAA5xsOZAonLReJCL J8BtgS6McmX9cGa9GF9ErxfWODC+1Wb3yayUNzOhr2ICu3T++ttf0aMVvMTeDF/Y lfoZ+tgg1ITQ9yVtz7eteodjLNAy6AaC0z7ulSq4jvPbm1WuBQIDAQABo4IF2DCC BdQwDAYDVR0TAQH/BAIwADALBgNVHQ8EBAMCBaAwggRbBgNVHREEggRSMIIEToIJ eWFuZGV4LmJ5ggp5YW5kZXguY29tgg15YW5kZXguY29tLnRygg15YW5kZXguY29t LnVhggl5YW5kZXgua3qCC3lhbmRleC5tb2Jpggp5YW5kZXgubmV0ggl5YW5kZXgu cnWCCXlhbmRleC5zdIIJeWFuZGV4LnVhghBpbWFnZXMueWFuZGV4LmJ5ghFpbWFn ZXMueWFuZGV4LmNvbYIUaW1hZ2VzLnlhbmRleC5jb20udHKCFGltYWdlcy55YW5k ZXguY29tLnVhghBpbWFnZXMueWFuZGV4Lmt6ghJpbWFnZXMueWFuZGV4Lm1vYmmC EWltYWdlcy55YW5kZXgubmV0ghBpbWFnZXMueWFuZGV4LnJ1ghBpbWFnZXMueWFu ZGV4LnN0ghBpbWFnZXMueWFuZGV4LnVhghBwZW9wbGUueWFuZGV4LmJ5ghFwZW9w bGUueWFuZGV4LmNvbYIUcGVvcGxlLnlhbmRleC5jb20udHKCFHBlb3BsZS55YW5k ZXguY29tLnVhghBwZW9wbGUueWFuZGV4Lmt6ghJwZW9wbGUueWFuZGV4Lm1vYmmC EXBlb3BsZS55YW5kZXgubmV0ghBwZW9wbGUueWFuZGV4LnJ1ghBwZW9wbGUueWFu ZGV4LnN0ghBwZW9wbGUueWFuZGV4LnVhghZwZW9wbGVzZWFyY2gueWFuZGV4LmJ5 ghdwZW9wbGVzZWFyY2gueWFuZGV4LmNvbYIacGVvcGxlc2VhcmNoLnlhbmRleC5j b20udHKCGnBlb3BsZXNlYXJjaC55YW5kZXguY29tLnVhghZwZW9wbGVzZWFyY2gu eWFuZGV4Lmt6ghhwZW9wbGVzZWFyY2gueWFuZGV4Lm1vYmmCF3Blb3BsZXNlYXJj aC55YW5kZXgubmV0ghZwZW9wbGVzZWFyY2gueWFuZGV4LnJ1ghZwZW9wbGVzZWFy Y2gueWFuZGV4LnN0ghZwZW9wbGVzZWFyY2gueWFuZGV4LnVhgg92aWRlby55YW5k ZXguYnmCEHZpZGVvLnlhbmRleC5jb22CE3ZpZGVvLnlhbmRleC5jb20udHKCE3Zp ZGVvLnlhbmRleC5jb20udWGCD3ZpZGVvLnlhbmRleC5reoIRdmlkZW8ueWFuZGV4 Lm1vYmmCEHZpZGVvLnlhbmRleC5uZXSCD3ZpZGVvLnlhbmRleC5ydYIPdmlkZW8u eWFuZGV4LnN0gg92aWRlby55YW5kZXgudWGCDXd3dy55YW5kZXguYnmCDnd3dy55 YW5kZXguY29tghF3d3cueWFuZGV4LmNvbS50coIRd3d3LnlhbmRleC5jb20udWGC DXd3dy55YW5kZXgua3qCD3d3dy55YW5kZXgubW9iaYIOd3d3LnlhbmRleC5uZXSC DXd3dy55YW5kZXgucnWCDXd3dy55YW5kZXguc3SCDXd3dy55YW5kZXgudWEwHQYD VR0OBBYEFDjrNQM8dYCWIlusgG7EqlAZ5D9lMB8GA1UdIwQYMBaAFNtBJzBPGvVb PoRWyOyFmLNRLC0nMEwGA1UdHwRFMEMwQaA/oD2GO2h0dHA6Ly9jcmxzLnlhbmRl eC5ydS9ZYW5kZXhFeHRlcm5hbENBL1lhbmRleEV4dGVybmFsQ0EuY3JsMFcGCCsG AQUFBwEBBEswSTBHBggrBgEFBQcwAoY7aHR0cDovL2NybHMueWFuZGV4LnJ1L1lh bmRleEV4dGVybmFsQ0EvWWFuZGV4RXh0ZXJuYWxDQS5kZXIwPwYJKwYBBAGCNxUH BDIwMAYoKwYBBAGCNxUIhtyhJoWT1VWH/YEtg/nnAoOV0gQci62jzDeH/MC/KAIB ZAIBBjATBgNVHSUEDDAKBggrBgEFBQcDATAbBgkrBgEEAYI3FQoEDjAMMAoGCCsG AQUFBwMBMA0GCSqGSIb3DQEBBQUAA4IBAQDNo4rLhEWgj72wbpYO6lSuM6YHn6Bj BsXJfumtchTyRHsY8RJGGKGZ6joeOQweqChsQXULTnVzadCJ1VqVJ2lTaII5R8Ii N9jcYgFl4WOv1ynFJ0Jf3V6/ePQd9cqFFJTfFSODHsyZR/Dhgez81/QExfsG/SzS u+ACIvsDbyu7NFcAK6ZM5CKz3lcisddT/pSPbTOi7AtqtNTrvKlV2AT+5mfNTEa7 rNv6chVl1He7RW8r7uCkK6AfFb0Z4LDhv2zkvmcUtaojmDOO/2AZSXym8efCSmHr CL2rhv6+ER3c0x5uJlhAUr1ZM76/XnfvT/2SKekPXbGlVAE3v7tfRnW9 -----END CERTIFICATE----- </code></pre> <p>I tried to look at the <code>PEM_write_X509</code> function in sources of openssl, but I can't do it, so many macros and defines.</p> <p>Also, how can i check the type of certificate? is it PEM or DER?</p> <p><strong>Update:</strong></p> <pre><code>struct x509_st { X509_CINF *cert_info; X509_ALGOR *sig_alg; ASN1_BIT_STRING *signature; int valid; int references; char *name; CRYPTO_EX_DATA ex_data; /* These contain copies of various extension values */ long ex_pathlen; long ex_pcpathlen; unsigned long ex_flags; unsigned long ex_kusage; unsigned long ex_xkusage; unsigned long ex_nscert; ASN1_OCTET_STRING *skid; AUTHORITY_KEYID *akid; X509_POLICY_CACHE *policy_cache; STACK_OF(DIST_POINT) *crldp; STACK_OF(GENERAL_NAME) *altname; NAME_CONSTRAINTS *nc; #ifndef OPENSSL_NO_RFC3779 STACK_OF(IPAddressFamily) *rfc3779_addr; struct ASIdentifiers_st *rfc3779_asid; #endif #ifndef OPENSSL_NO_SHA unsigned char sha1_hash[SHA_DIGEST_LENGTH]; #endif X509_CERT_AUX *aux; } /* X509 */; </code></pre>
 

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