Re: inet_pton() error. Does Cygwin support inet_pton()?

["Fernando Barsoba" <fbarsoba at verizon dot net>]

Thanks for the code to René...! I'll try it right away..!

Thanks again,

Fernando




cygwin-help@cygwin.com wrote:


 If you don't need IPv6 in your application you can add tbe following 
implementation:

 #ifdef __CYGWIN__

 /* From:
 *  UNIX Network Programming: Sockets Introduction
 *  By Andrew M. Rudoff, Bill Fenner, W. Richard Stevens.
 *  Prentice Hall PTR. Feb 27, 2004.
 */
 #define INET_ADDRSTRLEN       16       /* for IPv4 dotted-decimal */

 int inet_pton(int family, const char *strptr, void *addrptr)
 {
    if (family == AF_INET) {
        struct in_addr in_val;

        if (inet_aton(strptr, &in_val)) {
            memcpy(addrptr, &in_val, sizeof(struct in_addr));
            return (1);
        }
        return (0);
    }
    errno = EAFNOSUPPORT;
    return (-1);
 }

 const char *inet_ntop(int family, const void *addrptr, char *strptr, 
size_t len)
 {
    const u_char *p = (const u_char *) addrptr;

    if (family == AF_INET) {
        char    temp[INET_ADDRSTRLEN];

        snprintf(temp, sizeof(temp), "%d.%d.%d.%d", p[0], p[1], p[2], 
p[3]);
        if (strlen(temp) >= len) {
            errno = ENOSPC;
            return (NULL);
        }
        strcpy(strptr, temp);
        return (strptr);
    }
    errno = EAFNOSUPPORT;
    return (NULL);
 }

 #endif


 I've used this and getaddrinfo() from the postgress port to compile 
clamsmtpd,
 and it works fine.

 HTH,





--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/