diff options
Diffstat (limited to 'usr.bin/nc/netcat.c')
| -rw-r--r-- | usr.bin/nc/netcat.c | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/usr.bin/nc/netcat.c b/usr.bin/nc/netcat.c index 206b3f8b6ce..ecf392ceed1 100644 --- a/usr.bin/nc/netcat.c +++ b/usr.bin/nc/netcat.c @@ -1,4 +1,4 @@ -/* $OpenBSD: netcat.c,v 1.28 2001/06/26 23:25:22 ericj Exp $ */ +/* $OpenBSD: netcat.c,v 1.29 2001/06/27 02:45:08 smart Exp $ */ /* * Copyright (c) 2001 Eric Jackson <ericj@monkey.org> * @@ -37,6 +37,7 @@ #include <netinet/in.h> #include <arpa/telnet.h> + #include <err.h> #include <errno.h> #include <netdb.h> @@ -64,27 +65,36 @@ int timeout; int family = AF_UNSPEC; char *portlist[65535]; -void atelnet __P((int, unsigned char *, unsigned int)); -void build_ports __P((char *)); -void help __P((void)); -int local_listen __P((char *, char *, struct addrinfo)); -void readwrite __P((int)); -int remote_connect __P((char *, char *, struct addrinfo)); -int udptest __P((int)); -void usage __P((int)); +ssize_t atomicio __P((ssize_t (*)(), int, void *, size_t)); + +void atelnet __P((int, unsigned char *, unsigned int)); +void build_ports __P((char *)); +void help __P((void)); +int local_listen __P((char *, char *, struct addrinfo)); +void readwrite __P((int)); +int remote_connect __P((char *, char *, struct addrinfo)); +int udptest __P((int)); +void usage __P((int)); int main(argc, argv) int argc; char *argv[]; { - int ch, s, ret = 1; + int ch, s, ret; char *host, *uport, *endp; struct addrinfo hints; - struct servent *sv = 0; + struct servent *sv; socklen_t len; struct sockaddr *cliaddr; + ret = 1; + s = 0; + host = NULL; + uport = NULL; + endp = NULL; + sv = NULL; + while ((ch = getopt(argc, argv, "46hi:klnp:rs:tuvw:z")) != -1) { switch (ch) { case '4': @@ -179,7 +189,7 @@ main(argc, argv) /* Allow only one connection at a time, but stay alive */ for (;;) { if ((s = local_listen(host, uport, hints)) < 0) - errx(1, NULL); + exit(1); /* * For UDP, we will use recvfrom() initially * to wait for a caller, then use the regular @@ -360,7 +370,7 @@ local_listen(host, port, hints) ret = setsockopt(s, SOL_SOCKET, SO_REUSEPORT, &x, sizeof(x)); if (ret == -1) - errx(1, NULL); + exit(1); if (bind(s, (struct sockaddr *)res0->ai_addr, res0->ai_addrlen) == 0) |