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Build fixes for Solaris 9.

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See RT ticket #17444 for more.
This commit is contained in:
Shane Kerr
2008-01-09 23:02:42 +00:00
parent 2c9bf1f4bf
commit cff9b78fca
4 changed files with 58 additions and 5 deletions
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50
common/socket.c
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@@ -410,6 +410,56 @@ ssize_t send_packet (interface, packet, raw, len, from, to, hto)
#endif /* USE_SOCKET_SEND || USE_SOCKET_FALLBACK */
#ifdef DHCPv6
/*
* Solaris 9 is missing the CMSG_LEN and CMSG_SPACE macros, so we will
* synthesize them (based on the BIND 9 technique).
*/
#ifndef CMSG_LEN
static size_t CMSG_LEN(size_t len) {
size_t hdrlen;
/*
* Cast NULL so that any pointer arithmetic performed by CMSG_DATA
* is correct.
*/
hdrlen = (size_t)CMSG_DATA(((struct cmsghdr *)NULL));
return hdrlen + len;
}
#endif /* !CMSG_LEN */
#ifndef CMSG_SPACE
static size_t CMSG_SPACE(size_t len) {
struct msghdr msg;
struct cmsghdr *cmsgp;
/*
* XXX: The buffer length is an ad-hoc value, but should be enough
* in a practical sense.
*/
union {
struct cmsghdr cmsg_sizer;
u_int8_t pktinfo_sizer[sizeof(struct cmsghdr) + 1024];
} dummybuf;
memset(&msg, 0, sizeof(msg));
msg.msg_control = &dummybuf;
msg.msg_controllen = sizeof(dummybuf);
cmsgp = (struct cmsghdr *)&dummybuf;
cmsgp->cmsg_len = CMSG_LEN(len);
cmsgp = CMSG_NXTHDR(&msg, cmsgp);
if (cmsgp != NULL) {
return (char *)cmsgp - (char *)msg.msg_control;
} else {
return 0;
}
}
#endif /* !CMSG_SPACE */
#endif /* DHCPv6 */
#ifdef DHCPv6
/*
* For both send_packet6() and receive_packet6() we need to use the