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Convert a string into an Internet network number
#include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> unsigned long inet_network( const char * cp );
libsocket
Use the -l socket option to qcc to link against this library.
The inet_network() routine converts a string representing an IPv4 Internet address (for example, "127.0.0.1") into a numeric Internet network number.
All Internet addresses are returned in network order (bytes are ordered from left to right). All network numbers and local address parts are returned as machine-format integer values. For more information on Internet addresses, see inet_net_ntop().
An Internet network number, or INADDR_NONE if an error occurs.
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | No |
Signal handler | Yes |
Thread | Yes |