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merged features ancillary, envvar

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This commit is contained in:
Gerhard Rieger 2008-09-22 22:17:55 +02:00
parent bd3810642b
commit 2ffe5a324e
42 changed files with 1898 additions and 287 deletions

39
xio-ip4.c
View file

@ -1,5 +1,5 @@
/* source: xio-ip4.c */
/* Copyright Gerhard Rieger 2001-2007 */
/* Copyright Gerhard Rieger 2001-2008 */
/* Published under the GNU General Public License V.2, see file COPYING */
/* this file contains the source for IP4 related functions */
@ -43,4 +43,41 @@ int xiocheckrange_ip4(struct sockaddr_in *pa, struct xiorange_ip4 *range) {
return 0;
}
/* returns information that can be used for constructing an environment
variable describing the socket address.
if idx is 0, this function writes "ADDR" into namebuff and the IP address
into valuebuff, and returns 1 (which means that one more info is there).
if idx is 1, it writes "PORT" into namebuff and the port number into
valuebuff, and returns 0 (no more info)
namelen and valuelen contain the max. allowed length of output chars in the
respective buffer.
on error this function returns -1.
*/
int
xiosetsockaddrenv_ip4(int idx, char *namebuff, size_t namelen,
char *valuebuff, size_t valuelen,
struct sockaddr_in *sa, int ipproto) {
switch (idx) {
case 0:
strcpy(namebuff, "ADDR");
strcpy(valuebuff,
inet4addr_info(ntohl(sa->sin_addr.s_addr), valuebuff, valuelen));
switch (ipproto) {
case IPPROTO_TCP:
case IPPROTO_UDP:
#ifdef IPPROTO_SCTP
case IPPROTO_SCTP:
#endif
return 1; /* there is port information to also be retrieved */
default:
return 0; /* no port info coming */
}
case 1:
strcpy(namebuff, "PORT");
snprintf(valuebuff, valuelen, "%u", ntohs(sa->sin_port));
return 0;
}
return -1;
}
#endif /* WITH_IP4 */