This is sockets/inet_sockets.h (Listing 59-8, page 1226), an example from the book, The Linux Programming Interface.

The source code file is copyright 2022, Michael Kerrisk, and is licensed under the GNU Lesser General Public License, version 3.

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In the listing below, the names of Linux system calls and C library functions are hyperlinked to manual pages from the Linux man-pages project, and the names of functions implemented in the book are hyperlinked to the implementations of those functions.


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  Cover of The Linux Programming Interface
/* inet_sockets.h

   Header file for inet_sockets.c.
#define INET_SOCKETS_H          /* Prevent accidental double inclusion */

#include <sys/socket.h>
#include <netdb.h>

int inetConnect(const char *host, const char *service, int type);

int inetListen(const char *service, int backlog, socklen_t *addrlen);

int inetBind(const char *service, int type, socklen_t *addrlen);

char *inetAddressStr(const struct sockaddr *addr, socklen_t addrlen,
                char *addrStr, int addrStrLen);

#define IS_ADDR_STR_LEN 4096
                        /* Suggested length for string buffer that caller
                           should pass to inetAddressStr(). Must be greater
                           than (NI_MAXHOST + NI_MAXSERV + 4) */


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