I have uploaded a DCCP socket programming library to support DCCP userland applications on http://www.erg.abdn.ac.uk/users/gerrit/dccp/apps It takes care of many low-level details, such as making getaddrinfo() work for DCCP v4 and v6, assigning, parsing, and decoding service codes; use of partial checksums and more. It comes with 9 example client/server programs: * Echo / Discard / Chargen / Time / Daytime * Hello world example with SO_LINGER and normal * Steven's sock program (see below) for v4/v6 DCCP/UDP-Lite * ttcp for v4/v6 DCCP/UDP-Lite All applications and the library have been tested to work on both i386 and sparc64 (little/big endian). Some are useful for DCCP testing - the Chargen for example uses random buffer sizes which are useful for stress-testing. The library provides many low-level routines which may also be of use outside the library, i.e. it is not necessary to build all applications specifically with such a library. Documentation is at http://www.erg.abdn.ac.uk/users/gerrit/dccp/apps/dccplib.html It can be downloaded from http://www.erg.abdn.ac.uk/users/gerrit/dccp/apps/dccp_applications_lib.tar.gz An example live transcript of Stevens' sock program linked against the library: root@motz $ sock -dSC:KOTZ,SC=xC0DE -is 2000 IPv4/IPv6 DCCP socket listening on ::#2000 DCCP service codes: SC:KOTZ, SC=xC0DE accept from from ::ffff:139.133.209.103#45108 buffer read #1: 1024 bytes ... (998 lines deleted) buffer read #1000: 1024 bytes Received a total of 1024000 bytes in 1000 buffer reads. ... and here is a fully functional Daytime IPv4 / IPv6 client for DCCP: int main(int argc, char **argv) { char buf[BUFSIZ]; int sockfd, cnt; if (argc != 2) err_quit("%s: Need a `host' argument", *argv); sockfd = dccp_connect_simple(argv[1], "SC:DTIM"); if ((cnt = read(sockfd, buf, sizeof(buf))) < 0) err_sys("read error"); return write(2, buf, cnt) > 0; } - To unsubscribe from this list: send the line "unsubscribe dccp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
