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author | Alex Tanskanen <aleta@cendio.com> | 2020-03-10 13:33:01 +0100 |
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committer | Alex Tanskanen <aleta@cendio.com> | 2020-03-17 14:46:20 +0100 |
commit | e52923415e55add9aa448ffcbb018a84fa39b742 (patch) | |
tree | 5ac63ed06a13c6a6a28e389ec051c4e82bfca2e4 /common/rdr/Exception.cxx | |
parent | 01ca961b0cf009a6f1e4603ad84b09d475b9f515 (diff) | |
download | tigervnc-e52923415e55add9aa448ffcbb018a84fa39b742.tar.gz tigervnc-e52923415e55add9aa448ffcbb018a84fa39b742.zip |
Throw GAIException() for getaddrinfo errors
Created a new subclass of Exception called GAIException() that will
handle error messages from getaddrinfo() instead of letting Exception()
handle it. GAIException() will make use of gai_strerror() to map the
error code to text. On Windows, gai_strerrorW() must be used if the text
is encoded with UTF-8.
Diffstat (limited to 'common/rdr/Exception.cxx')
-rw-r--r-- | common/rdr/Exception.cxx | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/common/rdr/Exception.cxx b/common/rdr/Exception.cxx index e0592b29..9b6096b6 100644 --- a/common/rdr/Exception.cxx +++ b/common/rdr/Exception.cxx @@ -31,6 +31,9 @@ #include <tchar.h> #include <winsock2.h> #include <windows.h> +#include <ws2tcpip.h> +#else +#include <netdb.h> #endif #include <string.h> @@ -49,6 +52,21 @@ Exception::Exception(const char *format, ...) { va_end(ap); } +GAIException::GAIException(const char* s, int err) + : Exception("%s", s) +{ + strncat(str_, ": ", len-1-strlen(str_)); +#ifdef _WIN32 + wchar_t currStr[len-strlen(str_)]; + wcsncpy(currStr, gai_strerrorW(err), len-1-strlen(str_)); + WideCharToMultiByte(CP_UTF8, 0, currStr, -1, str_+strlen(str_), + len-1-strlen(str_), 0, 0); +#else + //FIXME: perhaps print the error number (NNNN) + strncat(str_, gai_strerror(err), len-1-strlen(str_)); +#endif +} + SystemException::SystemException(const char* s, int err_) : Exception("%s", s), err(err_) { |