diff options
Diffstat (limited to 'backends/libmmbackend.h')
| -rw-r--r-- | backends/libmmbackend.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/backends/libmmbackend.h b/backends/libmmbackend.h index aa0d0f0..08f03aa 100644 --- a/backends/libmmbackend.h +++ b/backends/libmmbackend.h @@ -5,6 +5,7 @@ #include <ws2tcpip.h> //#define close closesocket #else +#include <arpa/inet.h> #include <sys/socket.h> #include <netdb.h> #endif @@ -18,6 +19,34 @@ /*** BACKEND IMPLEMENTATION LIBRARY ***/ +/** Convenience functions **/ + +/* + * Duplicate src into *dest, freeing earlier content of *dest if present + * On success, 0 is returned + * On failure, a message is printed, *dest is a NULL pointer and 1 is returned + */ +int mmbackend_strdup(char** dest, char* src); + +/* + * Return a formatted error message pertaining to the last socket operation. + * On Linux/OSX, this calls through to strerror using the provided err_no. + * On Windows, err_no is ignored and WSAGetLastError is called to retrieve + * the status of the last operation. This information is then processed via + * FormatMessage into a fixed buffer, which is returned. Thus, this function + * is not thread-safe on Windows. On Linux, refer to strerror's documentation + * for information on thread-safety. + */ +char* mmbackend_socket_strerror(int err_no); + +/* + * Wrap / reimplement (on Windows) inet_ntop to work with struct sockaddr* directly. + * Prints the address in a "human-readable" form into buffer. + * Will modify at most length bytes into buffer, output will be zero-terminated. + * This function only works with AF_INET and AF_INET6 addresses. + */ +const char* mmbackend_sockaddr_ntop(struct sockaddr* peer, char* buffer, size_t length); + /** Networking functions **/ /* |