toybox: toys/netcat.c annotate

annotate toys/netcat.c @ 237:7cb15eae1664

Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() macros in each C file, and making generated/globals.h from that. Rename "toy" to "this" along the way to avoid toy/toys confusion.

author	Rob Landley <rob@landley.net>
date	Sun, 20 Jan 2008 17:25:44 -0600
parents	163498bf547b
children	dfbfbaeb69c9

rev	line source
233 d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	1 /* vi: set sw=4 ts=4:
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	2 *
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	3 * nc: mini-netcat - Forward stdin/stdout to a file or network connection.
189 22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	4 *
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	5 * Copyright 2007 Rob Landley <rob@landley.net>
194 30a6db5a95c2 Add comments about SUSv3 specs (or lack thereof). Rob Landley <rob@landley.net> parents: 189 diff changeset	6 *
30a6db5a95c2 Add comments about SUSv3 specs (or lack thereof). Rob Landley <rob@landley.net> parents: 189 diff changeset	7 * Not in SUSv3.
233 d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	8
234 163498bf547b Move NEWTOY() list from end of toylist.h to generated/newtoys.h. Rob Landley <rob@landley.net> parents: 233 diff changeset	9 USE_NETCAT(OLDTOY(nc, netcat, "i#w#l@p#s:q#f:e", TOYFLAG_BIN))
163498bf547b Move NEWTOY() list from end of toylist.h to generated/newtoys.h. Rob Landley <rob@landley.net> parents: 233 diff changeset	10 USE_NETCAT(NEWTOY(netcat, "i#w#l@p#s:q#f:e", TOYFLAG_BIN))
163498bf547b Move NEWTOY() list from end of toylist.h to generated/newtoys.h. Rob Landley <rob@landley.net> parents: 233 diff changeset	11
233 d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	12 config NETCAT
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	13 bool "netcat"
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	14 default n
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	15 help
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	16 usage: netcat [-iwlp] {IPADDR PORTNUM\|-f FILENAME} [-e COMMAND]
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	17
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	18 -e exec the rest of the command line
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	19 -i SECONDS delay after each line sent
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	20 -w SECONDS timeout for connection
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	21 -f filename use file (ala /dev/ttyS0) instead of network
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	22 -l listen for incoming connection (twice for persistent connection)
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	23 -p local port number
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	24 -s local source address
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	25 -q SECONDS quit this many seconds after EOF on stdin.
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	26
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	27 Use -l twice with -e for a quick-and-dirty server.
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	28
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	29 Use "stty 115200 -F /dev/ttyS0 && stty raw -echo -ctlecho" with
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	30 netcat -f to connect to a serial port.
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 194 diff changeset	31 */
189 22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	32
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	33 #include "toys.h"
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	34 #include "toynet.h"
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	35
237 7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	36 DEFINE_GLOBALS(
7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	37 char *filename; // -f read from filename instead of network
7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	38 long quit_delay; // -q Exit after EOF from stdin after # seconds.
7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	39 char *source_address; // -s Bind to a specific source address.
7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	40 long port; // -p Bind to a specific source port.
7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	41 long listen; // -l Listen for connection instead of dialing out.
7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	42 long wait; // -w Wait # seconds for a connection.
7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	43 long delay; // -i delay between lines sent
7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	44 )
7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	45
7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	46 #define TT this.netcat
189 22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	47
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	48 static void timeout(int signum)
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	49 {
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	50 error_exit("Timeout");
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	51 }
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	52
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	53 // Translate x.x.x.x numeric IPv4 address, or else DNS lookup an IPv4 name.
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	54 void lookup_name(char name, uint32_t result)
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	55 {
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	56 struct hostent *hostbyname;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	57
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	58 hostbyname = gethostbyname(*toys.optargs);
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	59 if (!hostbyname) error_exit("name lookup failed");
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	60 result = (uint32_t )hostbyname->h_addr_list;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	61 }
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	62
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	63 // Worry about a fancy lookup later.
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	64 void lookup_port(char str, uint16_t port)
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	65 {
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	66 *port = SWAP_BE16(atoi(str));
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	67 }
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	68
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	69 void netcat_main(void)
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	70 {
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	71 int sockfd, pollcount;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	72 struct pollfd pollfds[2];
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	73
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	74 if (TT.wait) {
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	75 signal(SIGALRM, timeout);
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	76 alarm(TT.wait);
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	77 }
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	78
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	79 if (TT.filename) pollfds[0].fd = xopen(TT.filename, O_RDWR);
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	80 else {
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	81 int temp;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	82 struct sockaddr_in address;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	83
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	84 // The argument parsing logic can't make "<2" conditional on "-f", so...
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	85 if (!*toys.optargs \|\| !toys.optargs[1]) {
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	86 toys.exithelp++;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	87 error_exit("Need address and port");
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	88 }
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	89
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	90 // Setup socket
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	91 sockfd = socket(AF_INET, SOCK_STREAM, 0);
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	92 if (-1 == sockfd) perror_exit("socket");
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	93 fcntl(sockfd, F_SETFD, FD_CLOEXEC);
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	94 temp = 1;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	95 setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &temp, sizeof(temp));
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	96 memset(&address, 0, sizeof(address));
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	97 address.sin_family = AF_INET;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	98 if (TT.port) {
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	99 address.sin_port = TT.port;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	100 if (-1 == bind(sockfd, &address, sizeof(address)))
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	101 perror_exit("bind");
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	102 }
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	103
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	104 // Figure out where to dial out to.
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	105 lookup_name(toys.optargs, (uint32_t )&address.sin_addr);
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	106 lookup_port(toys.optargs[1], &address.sin_port);
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	107 temp = connect(sockfd, (struct sockaddr *)&address, sizeof(address));
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	108 if (temp<0) perror_exit("connect");
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	109 pollfds[0].fd = sockfd;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	110 }
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	111
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	112 // We have a connection. Disarm timeout.
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	113 if (TT.wait) {
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	114 alarm(0);
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	115 signal(SIGALRM, SIG_DFL);
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	116 }
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	117
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	118 pollcount = 2;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	119 pollfds[1].fd = 0;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	120 pollfds[0].events = pollfds[1].events = POLLIN;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	121
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	122 // Poll loop copying stdin->socket and socket->stdout.
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	123 for (;;) {
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	124 int i;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	125
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	126 if (0>poll(pollfds, pollcount, -1)) perror_exit("poll");
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	127
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	128 for (i=0; i<pollcount; i++) {
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	129 if (pollfds[i].revents & POLLIN) {
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	130 int len = read(pollfds[i].fd, toybuf, sizeof(toybuf));
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	131 if (len<1) goto dohupnow;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	132 xwrite(i ? pollfds[0].fd : 1, toybuf, len);
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	133 }
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	134 if (pollfds[i].revents & POLLHUP) {
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	135 dohupnow:
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	136 // Close half-connect. This is needed for things like
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	137 // "echo GET / \| netcat landley.net 80" to work.
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	138 if (i) {
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	139 shutdown(pollfds[0].fd, SHUT_WR);
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	140 pollcount--;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	141 } else goto cleanup;
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	142 }
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	143 }
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	144 }
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	145 cleanup:
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	146 close(pollfds[0].fd);
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	147 // close(sockfd);
22d22427dec6 Add first pass at netcat. Base applet, -f, and -w implemented. Rob Landley <rob@landley.net> parents: diff changeset	148 }

Mercurial > hg > toybox

annotate toys/netcat.c @ 237:7cb15eae1664