Botan 2.19.1
Crypto and TLS for C&
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#include <exceptn.h>
Public Member Functions | |
int | error_code () const noexcept override |
ErrorType | error_type () const noexcept override |
System_Error (const std::string &msg) | |
System_Error (const std::string &msg, int err_code) | |
const char * | what () const noexcept override |
This exception is thrown in the event of an error related to interacting with the operating system.
This exception type also (optionally) captures an integer error code eg POSIX errno or Windows GetLastError.
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inline |
Botan::System_Error::System_Error | ( | const std::string & | msg, |
int | err_code | ||
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Definition at line 170 of file exceptn.cpp.
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inlineoverridevirtualnoexcept |
Return an error code associated with this exception, or otherwise 0.
The domain of this error varies depending on the source, for example on POSIX systems it might be errno, while on a Windows system it might be the result of GetLastError or WSAGetLastError. For error_type() is OpenSSLError, it will (if nonzero) be an OpenSSL error code from ERR_get_error.
Reimplemented from Botan::Exception.
Definition at line 332 of file exceptn.h.
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inlineoverridevirtualnoexcept |
Return the "type" of error which occurred.
Reimplemented from Botan::Exception.
Definition at line 330 of file exceptn.h.
References Botan::SystemError.
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inlineoverridenoexceptinherited |
Return a descriptive string which is hopefully comprehensible to a developer. It will likely not be useful for an end user.
The string has no particular format, and the content of exception messages may change from release to release. Thus the main use of this function is for logging or debugging.
Definition at line 96 of file exceptn.h.
Referenced by Botan::TLS::Client_Key_Exchange::Client_Key_Exchange(), Botan::RSA_PrivateKey::create_decryption_op(), Botan::RSA_PublicKey::create_encryption_op(), and Botan_FFI::ffi_guard_thunk().