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/* sockadapt.c
*
* Author: Charles Bailey bailey@genetics.upenn.edu
* Last Revised: 29-Jan-1996
*
* This file should contain stubs for any of the TCP/IP functions perl5
* requires which are not supported by your TCP/IP stack. These stubs
* can attempt to emulate the routine in question, or can just return
* an error status or cause perl to die.
*
* This version is set up for perl5 with socketshr 0.9D TCP/IP support.
*/
#include "EXTERN.h"
#include "perl.h"
#if defined(__DECC) && defined(__DECC_VER) && (__DECC_VER >= 50200000)
# define __sockadapt_my_netent_t __struct_netent_ptr32
# define __sockadapt_my_addr_t __in_addr_t
# define __sockadapt_my_name_t const char *
#else
# define __sockadapt_my_netent_t struct netent *
# define __sockadapt_my_addr_t long
# define __sockadapt_my_name_t char *
#endif
__sockadapt_my_netent_t getnetbyaddr( __sockadapt_my_addr_t net, int type) {
croak("Function \"getnetbyaddr\" not implemented in this version of perl");
return (struct netent *)NULL; /* Avoid MISSINGRETURN warning, not reached */
}
__sockadapt_my_netent_t getnetbyname( __sockadapt_my_name_t name) {
croak("Function \"getnetbyname\" not implemented in this version of perl");
return (struct netent *)NULL; /* Avoid MISSINGRETURN warning, not reached */
}
__sockadapt_my_netent_t getnetent() {
croak("Function \"getnetent\" not implemented in this version of perl");
return (struct netent *)NULL; /* Avoid MISSINGRETURN warning, not reached */
}
void setnetent() {
croak("Function \"setnetent\" not implemented in this version of perl");
}
void endnetent() {
croak("Function \"endnetent\" not implemented in this version of perl");
}
/* Some TCP/IP implementations seem to return success, when getpeername()
* is called on a UDP socket, but the port and in_addr are all zeroes.
*/
int my_getpeername(int sock, struct sockaddr *addr, int *addrlen) {
static char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
int rslt;
rslt = si_getpeername(sock, addr, addrlen);
/* Just pass an error back up the line */
if (rslt) return rslt;
/* If the call succeeded, make sure we don't have a zeroed port/addr */
if (addr->sa_family == AF_INET &&
!memcmp((char *)addr + sizeof(u_short), nowhere,
sizeof(u_short) + sizeof(struct in_addr))) {
rslt = -1;
SETERRNO(ENOTCONN,SS$_CLEARED);
}
return rslt;
}
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