Fix examples build with Openssl 4.0#1195
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From: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1138364 | /build/reproducible-path/websocketpp-0.8.2+git20250909/examples/print_client_tls/print_client_tls.cpp: In function ‘bool verify_subject_alternative_name(const char*, X509*)’: | /build/reproducible-path/websocketpp-0.8.2+git20250909/examples/print_client_tls/print_client_tls.cpp:67:57: warning: comparison of integer expressions of different signedness: ‘int’ and ‘size_t’ {aka ‘long unsigned int’} [-Wsign-compare] | 67 | if (ASN1_STRING_length(current_name->d.dNSName) != strlen(dns_name)) { | | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~ | /build/reproducible-path/websocketpp-0.8.2+git20250909/examples/print_client_tls/print_client_tls.cpp: In function ‘bool verify_common_name(const char*, X509*)’: | /build/reproducible-path/websocketpp-0.8.2+git20250909/examples/print_client_tls/print_client_tls.cpp:87:62: error: invalid conversion from ‘const X509_NAME_ENTRY*’ {aka ‘const X509_name_entry_st*’} to ‘X509_NAME_ENTRY*’ {aka ‘X509_name_entry_st*’} [-fpermissive] | 87 | X509_NAME_ENTRY * common_name_entry = X509_NAME_get_entry(X509_get_subject_name(cert), common_name_loc); | | ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | | | const X509_NAME_ENTRY* {aka const X509_name_entry_st*} | /build/reproducible-path/websocketpp-0.8.2+git20250909/examples/print_client_tls/print_client_tls.cpp:93:62: error: invalid conversion from ‘const ASN1_STRING*’ {aka ‘const asn1_string_st*’} to ‘ASN1_STRING*’ {aka ‘asn1_string_st*’} [-fpermissive] | 93 | ASN1_STRING * common_name_asn1 = X509_NAME_ENTRY_get_data(common_name_entry); | | ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~ | | | | | const ASN1_STRING* {aka const asn1_string_st*} | /build/reproducible-path/websocketpp-0.8.2+git20250909/examples/print_client_tls/print_client_tls.cpp:101:46: warning: comparison of integer expressions of different signedness: ‘int’ and ‘size_t’ {aka ‘long unsigned int’} [-Wsign-compare] | 101 | if (ASN1_STRING_length(common_name_asn1) != strlen(common_name_str)) { | | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ | make[3]: *** [examples/print_client_tls/CMakeFiles/print_client_tls.dir/build.make:82: examples/print_client_tls/CMakeFiles/print_client_tls.dir/print_client_tls.cpp.o] Error 1
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From:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1138364
| /build/reproducible-path/websocketpp-0.8.2+git20250909/examples/print_client_tls/print_client_tls.cpp: In function ‘bool verify_subject_alternative_name(const char*, X509*)’: | /build/reproducible-path/websocketpp-0.8.2+git20250909/examples/print_client_tls/print_client_tls.cpp:67:57: warning: comparison of integer expressions of different signedness: ‘int’ and ‘size_t’ {aka ‘long unsigned int’} [-Wsign-compare]
| 67 | if (ASN1_STRING_length(current_name->d.dNSName) != strlen(dns_name)) {
| | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
| /build/reproducible-path/websocketpp-0.8.2+git20250909/examples/print_client_tls/print_client_tls.cpp: In function ‘bool verify_common_name(const char*, X509*)’:
| /build/reproducible-path/websocketpp-0.8.2+git20250909/examples/print_client_tls/print_client_tls.cpp:87:62: error: invalid conversion from ‘const X509_NAME_ENTRY’ {aka ‘const X509_name_entry_st’} to ‘X509_NAME_ENTRY’ {aka ‘X509_name_entry_st’} [-fpermissive]
| 87 | X509_NAME_ENTRY * common_name_entry = X509_NAME_get_entry(X509_get_subject_name(cert), common_name_loc);
| | ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| | |
| | const X509_NAME_ENTRY* {aka const X509_name_entry_st*}
| /build/reproducible-path/websocketpp-0.8.2+git20250909/examples/print_client_tls/print_client_tls.cpp:93:62: error: invalid conversion from ‘const ASN1_STRING’ {aka ‘const asn1_string_st’} to ‘ASN1_STRING’ {aka ‘asn1_string_st’} [-fpermissive]
| 93 | ASN1_STRING * common_name_asn1 = X509_NAME_ENTRY_get_data(common_name_entry);
| | ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
| | |
| | const ASN1_STRING* {aka const asn1_string_st*}
| /build/reproducible-path/websocketpp-0.8.2+git20250909/examples/print_client_tls/print_client_tls.cpp:101:46: warning: comparison of integer expressions of different signedness: ‘int’ and ‘size_t’ {aka ‘long unsigned int’} [-Wsign-compare]
| 101 | if (ASN1_STRING_length(common_name_asn1) != strlen(common_name_str)) {
| | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
| make[3]: *** [examples/print_client_tls/CMakeFiles/print_client_tls.dir/build.make:82: examples/print_client_tls/CMakeFiles/print_client_tls.dir/print_client_tls.cpp.o] Error 1