diff options
| author | Josh Gao <jmgao@google.com> | 2018-12-10 17:04:21 -0800 |
|---|---|---|
| committer | Rob Landley <rob@landley.net> | 2018-12-10 20:10:13 -0600 |
| commit | 06af852a0f369a5a0f608ee4cbaef487c8493f3e (patch) | |
| tree | bc35232436a00bdcfe183ed7dec123516184b419 /toys | |
| parent | 0e431542e98f70aeb26291c0ada7bff84851dc77 (diff) | |
| download | toybox-06af852a0f369a5a0f608ee4cbaef487c8493f3e.tar.gz | |
nc: add UDP support.
Diffstat (limited to 'toys')
| -rw-r--r-- | toys/net/netcat.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/toys/net/netcat.c b/toys/net/netcat.c index d7dd9264..761d1f2a 100644 --- a/toys/net/netcat.c +++ b/toys/net/netcat.c @@ -7,7 +7,7 @@ * netcat -L zombies USE_NETCAT(OLDTOY(nc, netcat, TOYFLAG_USR|TOYFLAG_BIN)) -USE_NETCAT(NEWTOY(netcat, USE_NETCAT_LISTEN("^tlL")"w#<1W#<1p#<1>65535q#<1s:f:46"USE_NETCAT_LISTEN("[!tlL][!Lw]")"[!46]", TOYFLAG_BIN)) +USE_NETCAT(NEWTOY(netcat, USE_NETCAT_LISTEN("^tlL")"w#<1W#<1p#<1>65535q#<1s:f:46u"USE_NETCAT_LISTEN("[!tlL][!Lw]")"[!46]", TOYFLAG_BIN)) config NETCAT bool "netcat" @@ -21,6 +21,7 @@ config NETCAT -p Local port number -q Quit SECONDS after EOF on stdin, even if stdout hasn't closed yet -s Local source address + -u Use UDP -w SECONDS timeout to establish connection -W SECONDS timeout for more data on an idle connection @@ -72,6 +73,7 @@ void netcat_main(void) { int sockfd = -1, in1 = 0, in2 = 0, out1 = 1, out2 = 1; int family = AF_UNSPEC; + int type = SOCK_STREAM; pid_t child; // Addjust idle and quit_delay to miliseconds or -1 for no timeout @@ -91,12 +93,15 @@ void netcat_main(void) else if (toys.optflags&FLAG_6) family = AF_INET6; + if (toys.optflags&FLAG_u) + type = SOCK_DGRAM; + if (TT.f) in1 = out2 = xopen(TT.f, O_RDWR); else { // Setup socket if (!(toys.optflags&(FLAG_L|FLAG_l))) { struct addrinfo *addr = xgetaddrinfo(toys.optargs[0], toys.optargs[1], - family, SOCK_STREAM, 0, 0); + family, type, 0, 0); sockfd = xconnect(addr); // We have a connection. Disarm timeout. @@ -115,7 +120,7 @@ void netcat_main(void) struct addrinfo* bind_addr; sprintf(port, "%ld", TT.p); - bind_addr = xgetaddrinfo(TT.s, port, family, SOCK_STREAM, 0, 0); + bind_addr = xgetaddrinfo(TT.s, port, family, type, 0, 0); sockfd = xbind(bind_addr); } else { size_t bind_addrlen; @@ -134,7 +139,7 @@ void netcat_main(void) addr_in->sin_addr.s_addr = INADDR_ANY; } - sockfd = xsocket(family, SOCK_STREAM, 0); + sockfd = xsocket(family, type, 0); if (bind(sockfd, address, bind_addrlen)) perror_exit("bind"); } |