/* Our own header. Tabs are set for 4 spaces, not 8 */
#ifndef __unp_h
#define __unp_h
#include "../config.h" /* configuration options for current OS */
/* "../config.h" is generated by configure */
/* If anything changes in the following list of #includes, must change
acsite.m4 also, for configure's tests. */
#include <sys/types.h> /* basic system data types */
#include <sys/socket.h> /* basic socket definitions */
#include <sys/time.h> /* timeval{} for select() */
#include <time.h> /* timespec{} for pselect() */
#include <netinet/in.h> /* sockaddr_in{} and other Internet defns */
#include <arpa/inet.h> /* inet(3) functions */
#include <errno.h>
#include <fcntl.h> /* for nonblocking */
#include <netdb.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h> /* for S_xxx file mode constants */
#include <sys/uio.h> /* for iovec{} and readv/writev */
#include <unistd.h>
#include <sys/wait.h>
#include <sys/un.h> /* for Unix domain sockets */
#ifdef HAVE_SYS_SELECT_H
# include <sys/select.h> /* for convenience */
#endif
#ifdef HAVE_SYS_SYSCTL_H
# include <sys/sysctl.h>
#endif
#ifdef HAVE_POLL_H
# include <poll.h> /* for convenience */
#endif
#ifdef HAVE_SYS_EVENT_H
# include <sys/event.h> /* for kqueue */
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h> /* for convenience */
#endif
/* Three headers are normally needed for socket/file ioctl's:
* <sys/ioctl.h>, <sys/filio.h>, and <sys/sockio.h>.
*/
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_FILIO_H
# include <sys/filio.h>
#endif
#ifdef HAVE_SYS_SOCKIO_H
# include <sys/sockio.h>
#endif
#ifdef HAVE_PTHREAD_H
# include <pthread.h>
#endif
#ifdef HAVE_NET_IF_DL_H
# include <net/if_dl.h>
#endif
#ifdef HAVE_NETINET_SCTP_H
#include <netinet/sctp.h>
#endif
/* OSF/1 actually disables recv() and send() in <sys/socket.h> */
#ifdef __osf__
#undef recv
#undef send
#define recv(a,b,c,d) recvfrom(a,b,c,d,0,0)
#define send(a,b,c,d) sendto(a,b,c,d,0,0)
#endif
#ifndef INADDR_NONE
#define INADDR_NONE 0xffffffff /* should have been in <netinet/in.h> */
#endif
#ifndef SHUT_RD /* these three POSIX names are new */
#define SHUT_RD 0 /* shutdown for reading */
#define SHUT_WR 1 /* shutdown for writing */
#define SHUT_RDWR 2 /* shutdown for reading and writing */
#endif
#ifndef INET_ADDRSTRLEN
#define INET_ADDRSTRLEN 16 /* "ddd.ddd.ddd.ddd\0"
1234567890123456 */
#endif
/* Define following even if IPv6 not supported, so we can always allocate
an adequately sized buffer without #ifdefs in the code. */
#ifndef INET6_ADDRSTRLEN
#define INET6_ADDRSTRLEN 46 /* max size of IPv6 address string:
"xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx" or
"xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:ddd.ddd.ddd.ddd\0"
1234567890123456789012345678901234567890123456 */
#endif
/* Define bzero() as a macro if it's not in standard C library. */
#ifndef HAVE_BZERO
#define bzero(ptr,n) memset (ptr, 0, n)
#endif
/* Older resolvers do not have gethostbyname2() */
#ifndef HAVE_GETHOSTBYNAME2
#define gethostbyname2(host,family) gethostbyname((host))
#endif
/* The structure returned by recvfrom_flags() */
struct unp_in_pktinfo {
struct in_addr ipi_addr; /* dst IPv4 address */
int ipi_ifindex; /* received interface index */
};
/* We need the newer CMSG_LEN() and CMSG_SPACE() macros, but few
implementations support them today. These two macros really need
an ALIGN() macro, but each implementation does this differently. */
#ifndef CMSG_LEN
#define CMSG_LEN(size) (sizeof(struct cmsghdr) + (size))
#endif
#ifndef CMSG_SPACE
#define CMSG_SPACE(size) (sizeof(struct cmsghdr) + (size))
#endif
/* POSIX requires the SUN_LEN() macro, but not all implementations define it (yet). Note that this 4.4BSD macro works regardless whether there is a length field or not. */
#ifndef SUN_LEN
# define SUN_LEN (su) \
(sizeof (*(su)) - sizeof ((su)->sun_path) + strlen((su)->sun_path))
#endif
/* POSIX renames "Unix domain" as "local IPC."
Not all systems define AF_LOCAL and PF_LOCAL (yet). */
#ifndef AF_LOCAL
#define AF_LOCAL AF_UNIX
#endif
#ifndef PF_LOCAL
#define PF_LOCAL PF_UNIX
#endif
/* POSIX requires that an #include of <poll.h> define INFTIM, but many
systems still define it in <sys/stropts.h>. We don't want to include
all the STREAMS stuff if it's not needed, so we just define INFTIM here.
This is the standard value, but there's no guarantee it is -1. */
#ifndef INFTIM
#define INFTIM (-1) /* infinite poll timeout */
#ifdef HAVE_POLL_H
#define INFTIM_UNPH /* tell unpxti.h we defined it */
#endif
#endif
/* Following could be derived from SOMAXCONN in <sys/socket.h>, but many
kernels still #define it as 5, while actually supporting many more */
#define LISTENQ 1024 /* 2nd argument to listen () */
/* Miscellaneous constants */
#define MAXLINE 4096 /* max text line length */
#define BUFFSIZE 8192 /* buffer size for reads and writes */
/* Define some port number that can be used for our examples */
#define SERV_PORT 9877 /* TCP and UDP */
#define SERV_PORT_STR "9877" /* TCP and UDP */
#define UNIXSTR_PATH "/tmp/unix.str" /* Unix domain stream */
#define UNIXDG_PATH "/tmp/unix.dg" /* Unix domain datagram */
/* Following shortens all the typecasts of pointer arguments: */
#define SA struct sockaddr
#define HAVE_STRUCT_SOCKADDR_STORAGE
#ifndef HAVE_STRUCT_SOCKADDR_STORAGE
/*
* RFC 3493: protocol-independent placeholder for socket addresses
*/
#define __SS_MAXSIZE 128
#define __SS_ALIGNSIZE (sizeof(int64_t))
#ifdef HAVE_SOCKADDR_SA_LEN
#define __SS_PAD1SIZE (__SS_ALIGNSIZE - sizeof(u_char) - sizeof(sa_family_t))
#else
#define __SS_PAD1SIZE (__SS_ALIGNSIZE - sizeof(sa_family_t))
#endif
#define __SS_PAD2SIZE (__SS_MAXSIZE - 2*__SS_ALIGNSIZE)
struct sockaddr_storage {
#ifdef HAVE_SOCKADDR_SA_LEN
u_char ss_len;
#endif
sa_family_t ss_family;
char __ss_pad1[__SS_PAD1SIZE];
int64_t __ss_align;
char __ss_pad2[__SS_PAD2SIZE];
};
#endif
#define FILE_MODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)
/* default file access permissions for new files */
#define DIR_MODE (FILE_MODE | S_IXUSR | S_IXGRP | S_IXOTH)
/* default permissions for new directories */
typedef void Sigfunc (int); /* for signal handlers */
#define min(a,b) ((a) < (b) ? (a) : (b))
#define max(a,b) ((a) > (b) ? (a) : (b))
#ifndef HAVE_ADDRINFO_STRUCT
# include "../lib/addrinfo.h"
#endif
#ifndef HAVE_IF_NAMEINDEX_STRUCT
struct if_nameindex {
unsigned int if_index; /* 1, 2, ... */
char *if_name; /* null-terminated name: "le0", ... */
};
#endif
#ifndef HAVE_TIMESPEC_STRUCT
struct timespec {
time_t tv_sec; /* seconds */
long tv_nsec; /* and nanoseconds */
};
#endif
