X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=networking%2Fnc.c;h=1a99f91ccf387109b9a29291363f2c396e80f227;hb=08ea11ab0749a7977e6d47cd0fa7b3c9cc10af32;hp=dc9102b2a25c3caf8019826f38aaa729711ee355;hpb=703e20235aa0624d3ff4335c1e86edaa6e21efe2;p=oweals%2Fbusybox.git diff --git a/networking/nc.c b/networking/nc.c index dc9102b2a..1a99f91cc 100644 --- a/networking/nc.c +++ b/networking/nc.c @@ -7,17 +7,22 @@ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. */ -#include "busybox.h" +#include "libbb.h" + +#if ENABLE_DESKTOP +#include "nc_bloaty.c" +#else /* Lots of small differences in features * when compared to "standard" nc */ -static void timeout(int signum) +static void timeout(int signum UNUSED_PARAM) { bb_error_msg_and_die("timed out"); } +int nc_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int nc_main(int argc, char **argv) { /* sfd sits _here_ only because of "repeat" option (-l -l). */ @@ -39,14 +44,17 @@ int nc_main(int argc, char **argv) while ((opt = getopt(argc, argv, "" USE_NC_SERVER("lp:") USE_NC_EXTRA("w:i:f:e:") )) > 0 ) { - if (ENABLE_NC_SERVER && opt=='l') USE_NC_SERVER(do_listen++); - else if (ENABLE_NC_SERVER && opt=='p') { + if (ENABLE_NC_SERVER && opt=='l') + USE_NC_SERVER(do_listen++); + else if (ENABLE_NC_SERVER && opt=='p') USE_NC_SERVER(lport = bb_lookup_port(optarg, "tcp", 0)); - } - else if (ENABLE_NC_EXTRA && opt=='w') USE_NC_EXTRA( wsecs = xatou(optarg)); - else if (ENABLE_NC_EXTRA && opt=='i') USE_NC_EXTRA( delay = xatou(optarg)); - else if (ENABLE_NC_EXTRA && opt=='f') USE_NC_EXTRA( cfd = xopen(optarg, O_RDWR)); - else if (ENABLE_NC_EXTRA && opt=='e' && optind<=argc) { + else if (ENABLE_NC_EXTRA && opt=='w') + USE_NC_EXTRA( wsecs = xatou(optarg)); + else if (ENABLE_NC_EXTRA && opt=='i') + USE_NC_EXTRA( delay = xatou(optarg)); + else if (ENABLE_NC_EXTRA && opt=='f') + USE_NC_EXTRA( cfd = xopen(optarg, O_RDWR)); + else if (ENABLE_NC_EXTRA && opt=='e' && optind <= argc) { /* We cannot just 'break'. We should let getopt finish. ** Or else we won't be able to find where ** 'host' and 'port' params are @@ -98,17 +106,17 @@ int nc_main(int argc, char **argv) if (lport) set_nport(lsa, htons(lport)); setsockopt_reuseaddr(sfd); - xbind(sfd, &lsa->sa, lsa->len); + xbind(sfd, &lsa->u.sa, lsa->len); xlisten(sfd, do_listen); /* can be > 1 */ /* If we didn't specify a port number, * query and print it after listen() */ if (!lport) { socklen_t addrlen = lsa->len; - getsockname(sfd, &lsa->sa, &addrlen); - lport = get_nport(lsa); + getsockname(sfd, &lsa->u.sa, &addrlen); + lport = get_nport(&lsa->u.sa); fdprintf(2, "%d\n", ntohs(lport)); } - fcntl(sfd, F_SETFD, FD_CLOEXEC); + close_on_exec_on(sfd); accept_again: cfd = accept(sfd, NULL, 0); if (cfd < 0) @@ -142,13 +150,10 @@ int nc_main(int argc, char **argv) goto accept_again; } /* child (or main thread if no multiple -l) */ - if (cfd) { - dup2(cfd, 0); - close(cfd); - } - dup2(0, 1); - dup2(0, 2); - USE_NC_EXTRA(execvp(execparam[0], execparam);) + xmove_fd(cfd, 0); + xdup2(0, 1); + xdup2(0, 2); + USE_NC_EXTRA(BB_EXECVP(execparam[0], execparam);) /* Don't print stuff or it will go over the wire.... */ _exit(127); } @@ -169,14 +174,13 @@ int nc_main(int argc, char **argv) if (select(FD_SETSIZE, &testfds, NULL, NULL, NULL) < 0) bb_perror_msg_and_die("select"); +#define iobuf bb_common_bufsiz1 for (fd = 0; fd < FD_SETSIZE; fd++) { if (FD_ISSET(fd, &testfds)) { - nread = safe_read(fd, bb_common_bufsiz1, - sizeof(bb_common_bufsiz1)); - + nread = safe_read(fd, iobuf, sizeof(iobuf)); if (fd == cfd) { if (nread < 1) - exit(0); + exit(EXIT_SUCCESS); ofd = STDOUT_FILENO; } else { if (nread<1) { @@ -187,10 +191,10 @@ int nc_main(int argc, char **argv) } ofd = cfd; } - - xwrite(ofd, bb_common_bufsiz1, nread); + xwrite(ofd, iobuf, nread); if (delay > 0) sleep(delay); } } } } +#endif