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-rw-r--r--repo/netcat/0001-port-to-linux-with-libsd.patch438
-rw-r--r--repo/netcat/0002-connect-timeout.patch121
-rw-r--r--repo/netcat/0003-get-sev-by-name.patch34
-rw-r--r--repo/netcat/0004-send-crlf.patch173
-rw-r--r--repo/netcat/0005-quit-timer.patch140
-rw-r--r--repo/netcat/0006-udp-scan-timeout.patch60
-rw-r--r--repo/netcat/0007-verbose-numeric-port.patch58
-rw-r--r--repo/netcat/0008-dccp-support.patch262
-rw-r--r--repo/netcat/0009-serialized-handling-multiple-clients.patch75
-rw-r--r--repo/netcat/0010-misc-failures-and-features.patch404
-rw-r--r--repo/netcat/base64.c315
-rw-r--r--repo/netcat/netcat.xibuild44
12 files changed, 2124 insertions, 0 deletions
diff --git a/repo/netcat/0001-port-to-linux-with-libsd.patch b/repo/netcat/0001-port-to-linux-with-libsd.patch
new file mode 100644
index 0000000..4e15a74
--- /dev/null
+++ b/repo/netcat/0001-port-to-linux-with-libsd.patch
@@ -0,0 +1,438 @@
+From: Aron Xu <aron@debian.org>
+Date: Mon, 13 Feb 2012 15:59:31 +0800
+Subject: port to linux with libsd
+
+---
+ Makefile | 17 ++++++++++--
+ nc.1 | 4 +--
+ netcat.c | 96 +++++++++++++++++++++++++++++++++++++++++++++++++++++++---------
+ socks.c | 46 +++++++++++++++----------------
+ 4 files changed, 122 insertions(+), 41 deletions(-)
+
+diff --git a/Makefile b/Makefile
+index 150f829..96a6587 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,19 @@
+-# $OpenBSD: Makefile,v 1.6 2001/09/02 18:45:41 jakob Exp $
++# $OpenBSD: Makefile,v 1.6 2001/09/02 18:45:41 jakob Exp $
+
+ PROG= nc
+ SRCS= netcat.c atomicio.c socks.c
+
+-.include <bsd.prog.mk>
++LIBS= `pkg-config --libs libbsd` -lresolv
++OBJS= $(SRCS:.c=.o)
++CFLAGS= -g -O2
++LDFLAGS= -Wl,--no-add-needed
++
++all: nc
++nc: $(OBJS)
++ $(CC) $(CFLAGS) $(LDFLAGS) $(OBJS) $(LIBS) -o nc
++
++$(OBJS): %.o: %.c
++ $(CC) $(CFLAGS) -c $< -o $@
++
++clean:
++ rm -f $(OBJS) nc
+diff --git a/nc.1 b/nc.1
+index d83cb5c..67cc19f 100644
+--- a/nc.1
++++ b/nc.1
+@@ -169,9 +169,6 @@ Proxy authentication is only supported for HTTP CONNECT proxies at present.
+ Specifies the source port
+ .Nm
+ should use, subject to privilege restrictions and availability.
+-It is an error to use this option in conjunction with the
+-.Fl l
+-option.
+ .It Fl r
+ Specifies that source and/or destination ports should be chosen randomly
+ instead of sequentially within a range or in the order that the system
+@@ -193,6 +190,7 @@ Change IPv4 TOS value.
+ may be one of
+ .Ar critical ,
+ .Ar inetcontrol ,
++.Ar lowcost ,
+ .Ar lowdelay ,
+ .Ar netcontrol ,
+ .Ar throughput ,
+diff --git a/netcat.c b/netcat.c
+index 6358539..30591de 100644
+--- a/netcat.c
++++ b/netcat.c
+@@ -42,6 +42,46 @@
+ #include <netinet/ip.h>
+ #include <arpa/telnet.h>
+
++#ifndef IPTOS_LOWDELAY
++# define IPTOS_LOWDELAY 0x10
++# define IPTOS_THROUGHPUT 0x08
++# define IPTOS_RELIABILITY 0x04
++# define IPTOS_LOWCOST 0x02
++# define IPTOS_MINCOST IPTOS_LOWCOST
++#endif /* IPTOS_LOWDELAY */
++
++# ifndef IPTOS_DSCP_AF11
++# define IPTOS_DSCP_AF11 0x28
++# define IPTOS_DSCP_AF12 0x30
++# define IPTOS_DSCP_AF13 0x38
++# define IPTOS_DSCP_AF21 0x48
++# define IPTOS_DSCP_AF22 0x50
++# define IPTOS_DSCP_AF23 0x58
++# define IPTOS_DSCP_AF31 0x68
++# define IPTOS_DSCP_AF32 0x70
++# define IPTOS_DSCP_AF33 0x78
++# define IPTOS_DSCP_AF41 0x88
++# define IPTOS_DSCP_AF42 0x90
++# define IPTOS_DSCP_AF43 0x98
++# define IPTOS_DSCP_EF 0xb8
++#endif /* IPTOS_DSCP_AF11 */
++
++#ifndef IPTOS_DSCP_CS0
++# define IPTOS_DSCP_CS0 0x00
++# define IPTOS_DSCP_CS1 0x20
++# define IPTOS_DSCP_CS2 0x40
++# define IPTOS_DSCP_CS3 0x60
++# define IPTOS_DSCP_CS4 0x80
++# define IPTOS_DSCP_CS5 0xa0
++# define IPTOS_DSCP_CS6 0xc0
++# define IPTOS_DSCP_CS7 0xe0
++#endif /* IPTOS_DSCP_CS0 */
++
++#ifndef IPTOS_DSCP_EF
++# define IPTOS_DSCP_EF 0xb8
++#endif /* IPTOS_DSCP_EF */
++
++
+ #include <err.h>
+ #include <errno.h>
+ #include <fcntl.h>
+@@ -54,6 +94,8 @@
+ #include <stdlib.h>
+ #include <string.h>
+ #include <unistd.h>
++#include <bsd/stdlib.h>
++#include <bsd/string.h>
+ #include "atomicio.h"
+
+ #ifndef SUN_LEN
+@@ -130,7 +172,7 @@ main(int argc, char *argv[])
+ struct servent *sv;
+ socklen_t len;
+ struct sockaddr_storage cliaddr;
+- char *proxy;
++ char *proxy = NULL;
+ const char *errstr, *proxyhost = "", *proxyport = NULL;
+ struct addrinfo proxyhints;
+ char unix_dg_tmp_socket_buf[UNIX_DG_TMP_SOCKET_SIZE];
+@@ -211,10 +253,14 @@ main(int argc, char *argv[])
+ uflag = 1;
+ break;
+ case 'V':
++# if defined(RT_TABLEID_MAX)
+ rtableid = (int)strtonum(optarg, 0,
+ RT_TABLEID_MAX, &errstr);
+ if (errstr)
+ errx(1, "rtable %s: %s", errstr, optarg);
++# else
++ errx(1, "no alternate routing table support available");
++# endif
+ break;
+ case 'v':
+ vflag = 1;
+@@ -249,7 +295,11 @@ main(int argc, char *argv[])
+ errstr, optarg);
+ break;
+ case 'S':
++# if defined(TCP_MD5SIG)
+ Sflag = 1;
++# else
++ errx(1, "no TCP MD5 signature support available");
++# endif
+ break;
+ case 'T':
+ errstr = NULL;
+@@ -276,6 +326,15 @@ main(int argc, char *argv[])
+ if (argv[0] && !argv[1] && family == AF_UNIX) {
+ host = argv[0];
+ uport = NULL;
++ } else if (!argv[0] && lflag) {
++ if (sflag)
++ errx(1, "cannot use -s and -l");
++ if (zflag)
++ errx(1, "cannot use -z and -l");
++ if (pflag)
++ uport=pflag;
++ } else if (!lflag && kflag) {
++ errx(1, "cannot use -k without -l");
+ } else if (argv[0] && !argv[1]) {
+ if (!lflag)
+ usage(1);
+@@ -287,14 +346,7 @@ main(int argc, char *argv[])
+ } else
+ usage(1);
+
+- if (lflag && sflag)
+- errx(1, "cannot use -s and -l");
+- if (lflag && pflag)
+- errx(1, "cannot use -p and -l");
+- if (lflag && zflag)
+- errx(1, "cannot use -z and -l");
+- if (!lflag && kflag)
+- errx(1, "must use -l with -k");
++
+
+ /* Get name of temporary socket for unix datagram client */
+ if ((family == AF_UNIX) && uflag && !lflag) {
+@@ -303,8 +355,8 @@ main(int argc, char *argv[])
+ } else {
+ strlcpy(unix_dg_tmp_socket_buf, "/tmp/nc.XXXXXXXXXX",
+ UNIX_DG_TMP_SOCKET_SIZE);
+- if (mktemp(unix_dg_tmp_socket_buf) == NULL)
+- err(1, "mktemp");
++ if (mkstemp(unix_dg_tmp_socket_buf) == -1)
++ err(1, "mkstemp");
+ unix_dg_tmp_socket = unix_dg_tmp_socket_buf;
+ }
+ }
+@@ -598,16 +650,20 @@ remote_connect(const char *host, const char *port, struct addrinfo hints)
+ res0->ai_protocol)) < 0)
+ continue;
+
++# if defined(RT_TABLEID_MAX)
+ if (rtableid >= 0 && (setsockopt(s, SOL_SOCKET, SO_RTABLE,
+ &rtableid, sizeof(rtableid)) == -1))
+ err(1, "setsockopt SO_RTABLE");
++# endif
+
+ /* Bind to a local port or source address if specified. */
+ if (sflag || pflag) {
+ struct addrinfo ahints, *ares;
+
++# if defined (SO_BINDANY)
+ /* try SO_BINDANY, but don't insist */
+ setsockopt(s, SOL_SOCKET, SO_BINDANY, &on, sizeof(on));
++# endif
+ memset(&ahints, 0, sizeof(struct addrinfo));
+ ahints.ai_family = res0->ai_family;
+ ahints.ai_socktype = uflag ? SOCK_DGRAM : SOCK_STREAM;
+@@ -707,13 +763,21 @@ local_listen(char *host, char *port, struct addrinfo hints)
+ res0->ai_protocol)) < 0)
+ continue;
+
++# if defined(RT_TABLEID_MAX)
+ if (rtableid >= 0 && (setsockopt(s, SOL_SOCKET, SO_RTABLE,
+ &rtableid, sizeof(rtableid)) == -1))
+ err(1, "setsockopt SO_RTABLE");
++# endif
+
++ ret = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &x, sizeof(x));
++ if (ret == -1)
++ err(1, NULL);
++
++# if defined(SO_REUSEPORT)
+ ret = setsockopt(s, SOL_SOCKET, SO_REUSEPORT, &x, sizeof(x));
+ if (ret == -1)
+ err(1, NULL);
++# endif
+
+ set_common_sockopts(s, res0->ai_family);
+
+@@ -1134,11 +1198,13 @@ set_common_sockopts(int s, int af)
+ {
+ int x = 1;
+
++# if defined(TCP_MD5SIG)
+ if (Sflag) {
+ if (setsockopt(s, IPPROTO_TCP, TCP_MD5SIG,
+ &x, sizeof(x)) == -1)
+ err(1, NULL);
+ }
++# endif
+ if (Dflag) {
+ if (setsockopt(s, SOL_SOCKET, SO_DEBUG,
+ &x, sizeof(x)) == -1)
+@@ -1201,6 +1267,7 @@ map_tos(char *s, int *val)
+ { "cs7", IPTOS_DSCP_CS7 },
+ { "ef", IPTOS_DSCP_EF },
+ { "inetcontrol", IPTOS_PREC_INTERNETCONTROL },
++ { "lowcost", IPTOS_LOWCOST },
+ { "lowdelay", IPTOS_LOWDELAY },
+ { "netcontrol", IPTOS_PREC_NETCONTROL },
+ { "reliability", IPTOS_RELIABILITY },
+@@ -1247,6 +1314,9 @@ report_connect(const struct sockaddr *sa, socklen_t salen)
+ void
+ help(void)
+ {
++# if defined(DEBIAN_VERSION)
++ fprintf(stderr, "OpenBSD netcat (Debian patchlevel " DEBIAN_VERSION ")\n");
++# endif
+ usage(0);
+ fprintf(stderr, "\tCommand Summary:\n\
+ \t-4 Use IPv4\n\
+@@ -1278,7 +1348,7 @@ help(void)
+ \t-x addr[:port]\tSpecify proxy address and port\n\
+ \t-z Zero-I/O mode [used for scanning]\n\
+ Port numbers can be individual or ranges: lo-hi [inclusive]\n");
+- exit(1);
++ exit(0);
+ }
+
+ void
+@@ -1286,7 +1356,7 @@ usage(int ret)
+ {
+ fprintf(stderr,
+ "usage: nc [-46DdFhklNnrStUuvz] [-I length] [-i interval] [-O length]\n"
+- "\t [-P proxy_username] [-p source_port] [-s source] [-T ToS]\n"
++ "\t [-P proxy_username] [-p source_port] [-s source] [-T toskeyword]\n"
+ "\t [-V rtable] [-w timeout] [-X proxy_protocol]\n"
+ "\t [-x proxy_address[:port]] [destination] [port]\n");
+ if (ret)
+diff --git a/socks.c b/socks.c
+index 1b06e0e..57e4316 100644
+--- a/socks.c
++++ b/socks.c
+@@ -38,7 +38,7 @@
+ #include <string.h>
+ #include <unistd.h>
+ #include <resolv.h>
+-#include <readpassphrase.h>
++#include <bsd/readpassphrase.h>
+ #include "atomicio.h"
+
+ #define SOCKS_PORT "1080"
+@@ -167,11 +167,11 @@ socks_connect(const char *host, const char *port,
+ buf[2] = SOCKS_NOAUTH;
+ cnt = atomicio(vwrite, proxyfd, buf, 3);
+ if (cnt != 3)
+- err(1, "write failed (%zu/3)", cnt);
++ err(1, "write failed (%zu/3)", (size_t)cnt);
+
+ cnt = atomicio(read, proxyfd, buf, 2);
+ if (cnt != 2)
+- err(1, "read failed (%zu/3)", cnt);
++ err(1, "read failed (%zu/3)", (size_t)cnt);
+
+ if (buf[1] == SOCKS_NOMETHOD)
+ errx(1, "authentication method negotiation failed");
+@@ -220,23 +220,23 @@ socks_connect(const char *host, const char *port,
+
+ cnt = atomicio(vwrite, proxyfd, buf, wlen);
+ if (cnt != wlen)
+- err(1, "write failed (%zu/%zu)", cnt, wlen);
++ err(1, "write failed (%zu/%zu)", (size_t)cnt, (size_t)wlen);
+
+ cnt = atomicio(read, proxyfd, buf, 4);
+ if (cnt != 4)
+- err(1, "read failed (%zu/4)", cnt);
++ err(1, "read failed (%zu/4)", (size_t)cnt);
+ if (buf[1] != 0)
+ errx(1, "connection failed, SOCKS error %d", buf[1]);
+ switch (buf[3]) {
+ case SOCKS_IPV4:
+ cnt = atomicio(read, proxyfd, buf + 4, 6);
+ if (cnt != 6)
+- err(1, "read failed (%zu/6)", cnt);
++ err(1, "read failed (%zu/6)", (size_t)cnt);
+ break;
+ case SOCKS_IPV6:
+ cnt = atomicio(read, proxyfd, buf + 4, 18);
+ if (cnt != 18)
+- err(1, "read failed (%zu/18)", cnt);
++ err(1, "read failed (%zu/18)", (size_t)cnt);
+ break;
+ default:
+ errx(1, "connection failed, unsupported address type");
+@@ -256,11 +256,11 @@ socks_connect(const char *host, const char *port,
+
+ cnt = atomicio(vwrite, proxyfd, buf, wlen);
+ if (cnt != wlen)
+- err(1, "write failed (%zu/%zu)", cnt, wlen);
++ err(1, "write failed (%zu/%zu)", (size_t)cnt, (size_t)wlen);
+
+ cnt = atomicio(read, proxyfd, buf, 8);
+ if (cnt != 8)
+- err(1, "read failed (%zu/8)", cnt);
++ err(1, "read failed (%zu/8)", (size_t)cnt);
+ if (buf[1] != 90)
+ errx(1, "connection failed, SOCKS error %d", buf[1]);
+ } else if (socksv == -1) {
+@@ -272,39 +272,39 @@ socks_connect(const char *host, const char *port,
+
+ /* Try to be sane about numeric IPv6 addresses */
+ if (strchr(host, ':') != NULL) {
+- r = snprintf(buf, sizeof(buf),
++ r = snprintf((char*)buf, sizeof(buf),
+ "CONNECT [%s]:%d HTTP/1.0\r\n",
+ host, ntohs(serverport));
+ } else {
+- r = snprintf(buf, sizeof(buf),
++ r = snprintf((char*)buf, sizeof(buf),
+ "CONNECT %s:%d HTTP/1.0\r\n",
+ host, ntohs(serverport));
+ }
+ if (r == -1 || (size_t)r >= sizeof(buf))
+ errx(1, "hostname too long");
+- r = strlen(buf);
++ r = strlen((char*)buf);
+
+ cnt = atomicio(vwrite, proxyfd, buf, r);
+ if (cnt != r)
+- err(1, "write failed (%zu/%d)", cnt, r);
++ err(1, "write failed (%zu/%d)", (size_t)cnt, (int)r);
+
+ if (authretry > 1) {
+ char resp[1024];
+
+ proxypass = getproxypass(proxyuser, proxyhost);
+- r = snprintf(buf, sizeof(buf), "%s:%s",
++ r = snprintf((char*)buf, sizeof(buf), "%s:%s",
+ proxyuser, proxypass);
+ if (r == -1 || (size_t)r >= sizeof(buf) ||
+- b64_ntop(buf, strlen(buf), resp,
++ b64_ntop(buf, strlen((char*)buf), resp,
+ sizeof(resp)) == -1)
+ errx(1, "Proxy username/password too long");
+- r = snprintf(buf, sizeof(buf), "Proxy-Authorization: "
++ r = snprintf((char*)buf, sizeof(buf), "Proxy-Authorization: "
+ "Basic %s\r\n", resp);
+ if (r == -1 || (size_t)r >= sizeof(buf))
+ errx(1, "Proxy auth response too long");
+- r = strlen(buf);
++ r = strlen((char*)buf);
+ if ((cnt = atomicio(vwrite, proxyfd, buf, r)) != r)
+- err(1, "write failed (%zu/%d)", cnt, r);
++ err(1, "write failed (%zu/%d)", (size_t)cnt, r);
+ }
+
+ /* Terminate headers */
+@@ -312,22 +312,22 @@ socks_connect(const char *host, const char *port,
+ err(1, "write failed (%zu/2)", cnt);
+
+ /* Read status reply */
+- proxy_read_line(proxyfd, buf, sizeof(buf));
++ proxy_read_line(proxyfd, (char*)buf, sizeof(buf));
+ if (proxyuser != NULL &&
+- strncmp(buf, "HTTP/1.0 407 ", 12) == 0) {
++ strncmp((char*)buf, "HTTP/1.0 407 ", 12) == 0) {
+ if (authretry > 1) {
+ fprintf(stderr, "Proxy authentication "
+ "failed\n");
+ }
+ close(proxyfd);
+ goto again;
+- } else if (strncmp(buf, "HTTP/1.0 200 ", 12) != 0 &&
+- strncmp(buf, "HTTP/1.1 200 ", 12) != 0)
++ } else if (strncmp((char*)buf, "HTTP/1.0 200 ", 12) != 0 &&
++ strncmp((char*)buf, "HTTP/1.1 200 ", 12) != 0)
+ errx(1, "Proxy error: \"%s\"", buf);
+
+ /* Headers continue until we hit an empty line */
+ for (r = 0; r < HTTP_MAXHDRS; r++) {
+- proxy_read_line(proxyfd, buf, sizeof(buf));
++ proxy_read_line(proxyfd, (char*)buf, sizeof(buf));
+ if (*buf == '\0')
+ break;
+ }
+--
diff --git a/repo/netcat/0002-connect-timeout.patch b/repo/netcat/0002-connect-timeout.patch
new file mode 100644
index 0000000..0ea679c
--- /dev/null
+++ b/repo/netcat/0002-connect-timeout.patch
@@ -0,0 +1,121 @@
+From: Aron Xu <aron@debian.org>
+Date: Mon, 13 Feb 2012 14:43:56 +0800
+Subject: connect timeout
+
+---
+ netcat.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
+ 1 file changed, 75 insertions(+), 2 deletions(-)
+
+diff --git a/netcat.c b/netcat.c
+index 30591de..d40e3a5 100644
+--- a/netcat.c
++++ b/netcat.c
+@@ -113,6 +113,10 @@
+ #define POLL_STDOUT 3
+ #define BUFSIZE 16384
+
++#define CONNECTION_SUCCESS 0
++#define CONNECTION_FAILED 1
++#define CONNECTION_TIMEOUT 2
++
+ /* Command Line Options */
+ int dflag; /* detached, no stdin */
+ int Fflag; /* fdpass sock to stdout */
+@@ -163,6 +167,9 @@ void usage(int);
+ ssize_t drainbuf(int, unsigned char *, size_t *);
+ ssize_t fillbuf(int, unsigned char *, size_t *);
+
++static int connect_with_timeout(int fd, const struct sockaddr *sa,
++ socklen_t salen, int ctimeout);
++
+ int
+ main(int argc, char *argv[])
+ {
+@@ -680,11 +687,14 @@ remote_connect(const char *host, const char *port, struct addrinfo hints)
+
+ set_common_sockopts(s, res0->ai_family);
+
+- if (timeout_connect(s, res0->ai_addr, res0->ai_addrlen) == 0)
++ if ((error = connect_with_timeout(s, res0->ai_addr, res0->ai_addrlen, timeout))== CONNECTION_SUCCESS)
+ break;
+- else if (vflag)
++ else if (vflag && error == CONNECTION_FAILED)
+ warn("connect to %s port %s (%s) failed", host, port,
+ uflag ? "udp" : "tcp");
++ else if (vflag && error == CONNECTION_TIMEOUT)
++ warn("connect to %s port %s (%s) timed out", host, port,
++ uflag ? "udp" : "tcp");
+
+ close(s);
+ s = -1;
+@@ -732,6 +742,69 @@ timeout_connect(int s, const struct sockaddr *name, socklen_t namelen)
+ return (ret);
+ }
+
++static int connect_with_timeout(int fd, const struct sockaddr *sa,
++ socklen_t salen, int ctimeout)
++{
++ int err;
++ struct timeval tv, *tvp = NULL;
++ fd_set connect_fdset;
++ socklen_t len;
++ int orig_flags;
++
++ orig_flags = fcntl(fd, F_GETFL, 0);
++ if (fcntl(fd, F_SETFL, orig_flags | O_NONBLOCK) < 0 ) {
++ warn("can't set O_NONBLOCK - timeout not available");
++ if (connect(fd, sa, salen) == 0)
++ return CONNECTION_SUCCESS;
++ else
++ return CONNECTION_FAILED;
++ }
++
++ /* set connect timeout */
++ if (ctimeout > 0) {
++ tv.tv_sec = (time_t)ctimeout/1000;
++ tv.tv_usec = 0;
++ tvp = &tv;
++ }
++
++ /* attempt the connection */
++ err = connect(fd, sa, salen);
++ if (err != 0 && errno == EINPROGRESS) {
++ /* connection is proceeding
++ * it is complete (or failed) when select returns */
++
++ /* initialize connect_fdset */
++ FD_ZERO(&connect_fdset);
++ FD_SET(fd, &connect_fdset);
++
++ /* call select */
++ do {
++ err = select(fd + 1, NULL, &connect_fdset,
++ NULL, tvp);
++ } while (err < 0 && errno == EINTR);
++
++ /* select error */
++ if (err < 0)
++ errx(1,"select error: %s", strerror(errno));
++ /* we have reached a timeout */
++ if (err == 0)
++ return CONNECTION_TIMEOUT;
++ /* select returned successfully, but we must test socket
++ * error for result */
++ len = sizeof(err);
++ if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &err, &len) < 0)
++ errx(1, "getsockopt error: %s", strerror(errno));
++ /* setup errno according to the result returned by
++ * getsockopt */
++ if (err != 0)
++ errno = err;
++ }
++
++ /* return aborted if an error occured, and valid otherwise */
++ fcntl(fd, F_SETFL, orig_flags);
++ return (err != 0)? CONNECTION_FAILED : CONNECTION_SUCCESS;
++}
++
+ /*
+ * local_listen()
+ * Returns a socket listening on a local port, binds to specified source
+--
diff --git a/repo/netcat/0003-get-sev-by-name.patch b/repo/netcat/0003-get-sev-by-name.patch
new file mode 100644
index 0000000..c5ba82e
--- /dev/null
+++ b/repo/netcat/0003-get-sev-by-name.patch
@@ -0,0 +1,34 @@
+From: Aron Xu <aron@debian.org>
+Date: Mon, 13 Feb 2012 14:45:08 +0800
+Subject: get sev by name
+
+---
+ netcat.c | 9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/netcat.c b/netcat.c
+index d40e3a5..e0ad5c7 100644
+--- a/netcat.c
++++ b/netcat.c
+@@ -1193,12 +1193,19 @@ atelnet(int nfd, unsigned char *buf, unsigned int size)
+ void
+ build_ports(char *p)
+ {
++ struct servent *sv;
+ const char *errstr;
+ char *n;
+ int hi, lo, cp;
+ int x = 0;
+
+- if ((n = strchr(p, '-')) != NULL) {
++ sv = getservbyname(p, uflag ? "udp" : "tcp");
++ if (sv) {
++ portlist[0] = calloc(1, PORT_MAX_LEN);
++ if (portlist[0] == NULL)
++ err(1, NULL);
++ snprintf(portlist[0], PORT_MAX_LEN, "%d", ntohs(sv->s_port));
++ } else if ((n = strchr(p, '-')) != NULL) {
+ *n = '\0';
+ n++;
+
+--
diff --git a/repo/netcat/0004-send-crlf.patch b/repo/netcat/0004-send-crlf.patch
new file mode 100644
index 0000000..8c787c0
--- /dev/null
+++ b/repo/netcat/0004-send-crlf.patch
@@ -0,0 +1,173 @@
+From: Aron Xu <aron@debian.org>
+Date: Mon, 13 Feb 2012 14:57:45 +0800
+Subject: send crlf
+
+---
+ nc.1 | 6 ++++--
+ netcat.c | 50 ++++++++++++++++++++++++++++++++++++--------------
+ 2 files changed, 40 insertions(+), 16 deletions(-)
+
+diff --git a/nc.1 b/nc.1
+index 67cc19f..746d3b6 100644
+--- a/nc.1
++++ b/nc.1
+@@ -34,7 +34,7 @@
+ .Sh SYNOPSIS
+ .Nm nc
+ .Bk -words
+-.Op Fl 46DdFhklNnrStUuvz
++.Op Fl 46CDdFhklNnrStUuvz
+ .Op Fl I Ar length
+ .Op Fl i Ar interval
+ .Op Fl O Ar length
+@@ -98,6 +98,8 @@ to use IPv4 addresses only.
+ Forces
+ .Nm
+ to use IPv6 addresses only.
++.It Fl C
++Send CRLF as line-ending.
+ .It Fl D
+ Enable debugging on the socket.
+ .It Fl d
+@@ -377,7 +379,7 @@ More complicated examples can be built up when the user knows the format
+ of requests required by the server.
+ As another example, an email may be submitted to an SMTP server using:
+ .Bd -literal -offset indent
+-$ nc localhost 25 \*(Lt\*(Lt EOF
++$ nc [\-C] localhost 25 \*(Lt\*(Lt EOF
+ HELO host.example.com
+ MAIL FROM:\*(Ltuser@host.example.com\*(Gt
+ RCPT TO:\*(Ltuser2@host.example.com\*(Gt
+diff --git a/netcat.c b/netcat.c
+index e0ad5c7..1c90145 100644
+--- a/netcat.c
++++ b/netcat.c
+@@ -118,6 +118,7 @@
+ #define CONNECTION_TIMEOUT 2
+
+ /* Command Line Options */
++int Cflag = 0; /* CRLF line-ending */
+ int dflag; /* detached, no stdin */
+ int Fflag; /* fdpass sock to stdout */
+ unsigned int iflag; /* Interval Flag */
+@@ -164,7 +165,7 @@ void set_common_sockopts(int, int);
+ int map_tos(char *, int *);
+ void report_connect(const struct sockaddr *, socklen_t);
+ void usage(int);
+-ssize_t drainbuf(int, unsigned char *, size_t *);
++ssize_t drainbuf(int, unsigned char *, size_t *, int);
+ ssize_t fillbuf(int, unsigned char *, size_t *);
+
+ static int connect_with_timeout(int fd, const struct sockaddr *sa,
+@@ -194,7 +195,7 @@ main(int argc, char *argv[])
+ signal(SIGPIPE, SIG_IGN);
+
+ while ((ch = getopt(argc, argv,
+- "46DdFhI:i:klNnO:P:p:rSs:tT:UuV:vw:X:x:z")) != -1) {
++ "46CDdFhI:i:klNnO:P:p:rSs:tT:UuV:vw:X:x:z")) != -1) {
+ switch (ch) {
+ case '4':
+ family = AF_INET;
+@@ -322,6 +323,9 @@ main(int argc, char *argv[])
+ if (Tflag < 0 || Tflag > 255 || errstr || errno)
+ errx(1, "illegal tos value %s", optarg);
+ break;
++ case 'C':
++ Cflag = 1;
++ break;
+ default:
+ usage(1);
+ }
+@@ -928,12 +932,6 @@ readwrite(int net_fd)
+ return;
+ }
+
+- /* help says -i is for "wait between lines sent". We read and
+- * write arbitrary amounts of data, and we don't want to start
+- * scanning for newlines, so this is as good as it gets */
+- if (iflag)
+- sleep(iflag);
+-
+ /* poll */
+ num_fds = poll(pfd, 4, timeout);
+
+@@ -999,7 +997,7 @@ readwrite(int net_fd)
+ /* try to write to network */
+ if (pfd[POLL_NETOUT].revents & POLLOUT && stdinbufpos > 0) {
+ ret = drainbuf(pfd[POLL_NETOUT].fd, stdinbuf,
+- &stdinbufpos);
++ &stdinbufpos, (iflag || Cflag) ? 1 : 0);
+ if (ret == -1)
+ pfd[POLL_NETOUT].fd = -1;
+ /* buffer empty - remove self from polling */
+@@ -1034,7 +1032,7 @@ readwrite(int net_fd)
+ /* try to write to stdout */
+ if (pfd[POLL_STDOUT].revents & POLLOUT && netinbufpos > 0) {
+ ret = drainbuf(pfd[POLL_STDOUT].fd, netinbuf,
+- &netinbufpos);
++ &netinbufpos, 0);
+ if (ret == -1)
+ pfd[POLL_STDOUT].fd = -1;
+ /* buffer empty - remove self from polling */
+@@ -1059,17 +1057,40 @@ readwrite(int net_fd)
+ }
+
+ ssize_t
+-drainbuf(int fd, unsigned char *buf, size_t *bufpos)
++drainbuf(int fd, unsigned char *buf, size_t *bufpos, int oneline)
+ {
+- ssize_t n;
++ ssize_t n, r;
+ ssize_t adjust;
++ unsigned char *lf = NULL;
++
++ if (oneline)
++ lf = memchr(buf, '\n', *bufpos);
++ if (lf == NULL) {
++ n = *bufpos;
++ oneline = 0;
++ }
++ else if (Cflag && (lf == buf || buf[lf - buf - 1] != '\r')) {
++ n = lf - buf;
++ oneline = 2;
++ }
++ else
++ n = lf - buf + 1;
++ if (n > 0)
++ n = write(fd, buf, n);
+
+- n = write(fd, buf, *bufpos);
+ /* don't treat EAGAIN, EINTR as error */
+ if (n == -1 && (errno == EAGAIN || errno == EINTR))
+ n = -2;
++ if (oneline == 2 && n >= 0)
++ n++;
+ if (n <= 0)
+ return n;
++
++ if (oneline == 2 && (r = atomicio(vwrite, fd, "\r\n", 2)) != 2)
++ err(1, "write failed (%zu/2)", r);
++ if (oneline > 0 && iflag)
++ sleep(iflag);
++
+ /* adjust buffer */
+ adjust = *bufpos - n;
+ if (adjust > 0)
+@@ -1401,6 +1422,7 @@ help(void)
+ fprintf(stderr, "\tCommand Summary:\n\
+ \t-4 Use IPv4\n\
+ \t-6 Use IPv6\n\
++ \t-C Send CRLF as line-ending\n\
+ \t-D Enable the debug socket option\n\
+ \t-d Detach from stdin\n\
+ \t-F Pass socket fd\n\
+@@ -1435,7 +1457,7 @@ void
+ usage(int ret)
+ {
+ fprintf(stderr,
+- "usage: nc [-46DdFhklNnrStUuvz] [-I length] [-i interval] [-O length]\n"
++ "usage: nc [-46CDdFhklNnrStUuvz] [-I length] [-i interval] [-O length]\n"
+ "\t [-P proxy_username] [-p source_port] [-s source] [-T toskeyword]\n"
+ "\t [-V rtable] [-w timeout] [-X proxy_protocol]\n"
+ "\t [-x proxy_address[:port]] [destination] [port]\n");
+--
diff --git a/repo/netcat/0005-quit-timer.patch b/repo/netcat/0005-quit-timer.patch
new file mode 100644
index 0000000..a4b3fa6
--- /dev/null
+++ b/repo/netcat/0005-quit-timer.patch
@@ -0,0 +1,140 @@
+From: Aron Xu <aron@debian.org>
+Date: Mon, 13 Feb 2012 15:16:04 +0800
+Subject: quit timer
+
+---
+ nc.1 | 5 +++++
+ netcat.c | 52 +++++++++++++++++++++++++++++++++++++++++++---------
+ 2 files changed, 48 insertions(+), 9 deletions(-)
+
+diff --git a/nc.1 b/nc.1
+index 746d3b6..1ee6887 100644
+--- a/nc.1
++++ b/nc.1
+@@ -40,6 +40,7 @@
+ .Op Fl O Ar length
+ .Op Fl P Ar proxy_username
+ .Op Fl p Ar source_port
++.Op Fl q Ar seconds
+ .Op Fl s Ar source
+ .Op Fl T Ar toskeyword
+ .Op Fl V Ar rtable
+@@ -171,6 +172,15 @@ Proxy authentication is only supported for HTTP CONNECT proxies at present.
+ Specifies the source port
+ .Nm
+ should use, subject to privilege restrictions and availability.
++.It Fl q Ar seconds
++after EOF on stdin, wait the specified number of
++.Ar seconds
++and then quit. If
++.Ar seconds
++is negative, wait forever (default). Specifying a non-negative
++.Ar seconds
++implies
++.Fl N .
+ .It Fl r
+ Specifies that source and/or destination ports should be chosen randomly
+ instead of sequentially within a range or in the order that the system
+diff --git a/netcat.c b/netcat.c
+index 1c90145..7572bb2 100644
+--- a/netcat.c
++++ b/netcat.c
+@@ -128,6 +128,7 @@ int Nflag; /* shutdown() network socket */
+ int nflag; /* Don't do name look up */
+ char *Pflag; /* Proxy username */
+ char *pflag; /* Localport flag */
++int qflag = -1; /* Quit after some secs */
+ int rflag; /* Random ports flag */
+ char *sflag; /* Source Address */
+ int tflag; /* Telnet Emulation */
+@@ -171,6 +172,8 @@ ssize_t fillbuf(int, unsigned char *, size_t *);
+ static int connect_with_timeout(int fd, const struct sockaddr *sa,
+ socklen_t salen, int ctimeout);
+
++static void quit();
++
+ int
+ main(int argc, char *argv[])
+ {
+@@ -195,7 +198,7 @@ main(int argc, char *argv[])
+ signal(SIGPIPE, SIG_IGN);
+
+ while ((ch = getopt(argc, argv,
+- "46CDdFhI:i:klNnO:P:p:rSs:tT:UuV:vw:X:x:z")) != -1) {
++ "46CDdFhI:i:klNnO:P:p:q:rSs:tT:UuV:vw:X:x:z")) != -1) {
+ switch (ch) {
+ case '4':
+ family = AF_INET;
+@@ -248,6 +251,13 @@ main(int argc, char *argv[])
+ case 'p':
+ pflag = optarg;
+ break;
++ case 'q':
++ qflag = strtonum(optarg, INT_MIN, INT_MAX, &errstr);
++ if (errstr)
++ errx(1, "quit timer %s: %s", errstr, optarg);
++ if (qflag >= 0)
++ Nflag = 1;
++ break;
+ case 'r':
+ rflag = 1;
+ break;
+@@ -918,18 +928,26 @@ readwrite(int net_fd)
+ if (pfd[POLL_STDIN].fd == -1 && pfd[POLL_NETIN].fd == -1
+ && stdinbufpos == 0 && netinbufpos == 0) {
+ close(net_fd);
+- return;
++ if (qflag <= 0)
++ return;
++ goto delay_exit;
+ }
+ /* both outputs are gone, we can't continue */
+ if (pfd[POLL_NETOUT].fd == -1 && pfd[POLL_STDOUT].fd == -1) {
+ close(net_fd);
+- return;
++ if (qflag <= 0)
++ return;
++ goto delay_exit;
+ }
+ /* listen and net in gone, queues empty, done */
+ if (lflag && pfd[POLL_NETIN].fd == -1
+ && stdinbufpos == 0 && netinbufpos == 0) {
+ close(net_fd);
+- return;
++ if (qflag <= 0)
++ return;
++delay_exit:
++ signal(SIGALRM, quit);
++ alarm(qflag);
+ }
+
+ /* poll */
+@@ -1436,6 +1454,7 @@ help(void)
+ \t-O length TCP send buffer length\n\
+ \t-P proxyuser\tUsername for proxy authentication\n\
+ \t-p port\t Specify local port for remote connects\n\
++ \t-q secs\t quit after EOF on stdin and delay of secs\n\
+ \t-r Randomize remote ports\n\
+ \t-S Enable the TCP MD5 signature option\n\
+ \t-s addr\t Local source address\n\
+@@ -1458,9 +1477,18 @@ usage(int ret)
+ {
+ fprintf(stderr,
+ "usage: nc [-46CDdFhklNnrStUuvz] [-I length] [-i interval] [-O length]\n"
+- "\t [-P proxy_username] [-p source_port] [-s source] [-T toskeyword]\n"
+- "\t [-V rtable] [-w timeout] [-X proxy_protocol]\n"
++ "\t [-P proxy_username] [-p source_port] [-q seconds] [-s source]\n"
++ "\t [-T toskeyword] [-V rtable] [-w timeout] [-X proxy_protocol]\n"
+ "\t [-x proxy_address[:port]] [destination] [port]\n");
+ if (ret)
+ exit(1);
+ }
++
++/*
++ * quit()
++ * handler for a "-q" timeout (exit 0 instead of 1)
++ */
++static void quit()
++{
++ exit(0);
++}
diff --git a/repo/netcat/0006-udp-scan-timeout.patch b/repo/netcat/0006-udp-scan-timeout.patch
new file mode 100644
index 0000000..799acc6
--- /dev/null
+++ b/repo/netcat/0006-udp-scan-timeout.patch
@@ -0,0 +1,60 @@
+From: Aron Xu <aron@debian.org>
+Date: Mon, 13 Feb 2012 15:29:37 +0800
+Subject: udp scan timeout
+
+---
+ netcat.c | 25 ++++++++++++++++---------
+ 1 file changed, 16 insertions(+), 9 deletions(-)
+
+diff --git a/netcat.c b/netcat.c
+index f971893..9ab507a 100644
+--- a/netcat.c
++++ b/netcat.c
+@@ -117,6 +117,8 @@
+ #define CONNECTION_FAILED 1
+ #define CONNECTION_TIMEOUT 2
+
++#define UDP_SCAN_TIMEOUT 3 /* Seconds */
++
+ /* Command Line Options */
+ int Cflag = 0; /* CRLF line-ending */
+ int dflag; /* detached, no stdin */
+@@ -525,7 +527,7 @@ main(int argc, char *argv[])
+ continue;
+
+ ret = 0;
+- if (vflag || zflag) {
++ if (vflag) {
+ /* For UDP, make sure we are connected. */
+ if (uflag) {
+ if (udptest(s) == -1) {
+@@ -1298,15 +1300,20 @@ build_ports(char *p)
+ int
+ udptest(int s)
+ {
+- int i, ret;
+-
+- for (i = 0; i <= 3; i++) {
+- if (write(s, "X", 1) == 1)
+- ret = 1;
+- else
+- ret = -1;
++ int i, t;
++
++ if ((write(s, "X", 1) != 1) ||
++ ((write(s, "X", 1) != 1) && (errno == ECONNREFUSED)))
++ return -1;
++
++ /* Give the remote host some time to reply. */
++ for (i = 0, t = (timeout == -1) ? UDP_SCAN_TIMEOUT : (timeout / 1000);
++ i < t; i++) {
++ sleep(1);
++ if ((write(s, "X", 1) != 1) && (errno == ECONNREFUSED))
++ return -1;
+ }
+- return (ret);
++ return 1;
+ }
+
+ void
+--
diff --git a/repo/netcat/0007-verbose-numeric-port.patch b/repo/netcat/0007-verbose-numeric-port.patch
new file mode 100644
index 0000000..dd6ed00
--- /dev/null
+++ b/repo/netcat/0007-verbose-numeric-port.patch
@@ -0,0 +1,58 @@
+From: Aron Xu <aron@debian.org>
+Date: Mon, 13 Feb 2012 15:38:15 +0800
+Subject: verbose numeric port
+
+---
+ netcat.c | 19 ++++++++++++++++---
+ 1 file changed, 16 insertions(+), 3 deletions(-)
+
+diff --git a/netcat.c b/netcat.c
+index 9ab507a..3240a08 100644
+--- a/netcat.c
++++ b/netcat.c
+@@ -41,6 +41,7 @@
+ #include <netinet/tcp.h>
+ #include <netinet/ip.h>
+ #include <arpa/telnet.h>
++#include <arpa/inet.h>
+
+ #ifndef IPTOS_LOWDELAY
+ # define IPTOS_LOWDELAY 0x10
+@@ -436,6 +437,18 @@ main(int argc, char *argv[])
+ s = local_listen(host, uport, hints);
+ if (s < 0)
+ err(1, NULL);
++
++ char* local;
++ if (family == AF_INET6
++ local = "0.0.0.0";
++ else if (family == AF_INET)
++ local = ":::";
++ else
++ local = "unknown"
++ fprintf(stderr, "Listening on [%s] (family %d, port %d)\n",
++ host ?: local,
++ family,
++ *uport);
+ /*
+ * For UDP and -k, don't connect the socket, let it
+ * receive datagrams from multiple socket pairs.
+@@ -452,14 +465,14 @@ main(int argc, char *argv[])
+ char buf[16384];
+ struct sockaddr_storage z;
+
+- len = sizeof(z);
++ len = sizeof(cliaddr);
+ plen = 2048;
+ rv = recvfrom(s, buf, plen, MSG_PEEK,
+- (struct sockaddr *)&z, &len);
++ (struct sockaddr *)&cliaddr, &len);
+ if (rv < 0)
+ err(1, "recvfrom");
+
+- rv = connect(s, (struct sockaddr *)&z, len);
++ rv = connect(s, (struct sockaddr *)&cliaddr, len);
+ if (rv < 0)
+ err(1, "connect");
+
+--
diff --git a/repo/netcat/0008-dccp-support.patch b/repo/netcat/0008-dccp-support.patch
new file mode 100644
index 0000000..26ed8a3
--- /dev/null
+++ b/repo/netcat/0008-dccp-support.patch
@@ -0,0 +1,262 @@
+From: Aron Xu <aron@debian.org>
+Date: Mon, 13 Feb 2012 15:56:51 +0800
+Subject: dccp support
+
+---
+ nc.1 | 4 ++-
+ netcat.c | 102 ++++++++++++++++++++++++++++++++++++++++++++++++++++-----------
+ 2 files changed, 88 insertions(+), 18 deletions(-)
+
+diff --git a/nc.1 b/nc.1
+index 1ee6887..fe42909 100644
+--- a/nc.1
++++ b/nc.1
+@@ -34,7 +34,7 @@
+ .Sh SYNOPSIS
+ .Nm nc
+ .Bk -words
+-.Op Fl 46CDdFhklNnrStUuvz
++.Op Fl 46CDdFhklNnrStUuvZz
+ .Op Fl I Ar length
+ .Op Fl i Ar interval
+ .Op Fl O Ar length
+@@ -279,6 +279,8 @@ If
+ .Ar port
+ is not specified, the well-known port for the proxy protocol is used (1080
+ for SOCKS, 3128 for HTTPS).
++.It Fl Z
++DCCP mode.
+ .It Fl z
+ Specifies that
+ .Nm
+diff --git a/netcat.c b/netcat.c
+index 3240a08..f4d85af 100644
+--- a/netcat.c
++++ b/netcat.c
+@@ -136,6 +136,7 @@ int rflag; /* Random ports flag */
+ char *sflag; /* Source Address */
+ int tflag; /* Telnet Emulation */
+ int uflag; /* UDP - Default to TCP */
++int dccpflag; /* DCCP - Default to TCP */
+ int vflag; /* Verbosity */
+ int xflag; /* Socks proxy */
+ int zflag; /* Port Scan Flag */
+@@ -171,6 +172,7 @@ void report_connect(const struct sockaddr *, socklen_t);
+ void usage(int);
+ ssize_t drainbuf(int, unsigned char *, size_t *, int);
+ ssize_t fillbuf(int, unsigned char *, size_t *);
++char *proto_name(int uflag, int dccpflag);
+
+ static int connect_with_timeout(int fd, const struct sockaddr *sa,
+ socklen_t salen, int ctimeout);
+@@ -200,7 +202,7 @@ main(int argc, char *argv[])
+ signal(SIGPIPE, SIG_IGN);
+
+ while ((ch = getopt(argc, argv,
+- "46CDdFhI:i:klNnO:P:p:q:rSs:tT:UuV:vw:X:x:z")) != -1) {
++ "46CDdFhI:i:klNnO:P:p:q:rSs:tT:UuV:vw:X:x:Zz")) != -1) {
+ switch (ch) {
+ case '4':
+ family = AF_INET;
+@@ -270,6 +272,13 @@ main(int argc, char *argv[])
+ case 'u':
+ uflag = 1;
+ break;
++ case 'Z':
++# if defined(IPPROTO_DCCP) && defined(SOCK_DCCP)
++ dccpflag = 1;
++# else
++ errx(1, "no DCCP support available");
++# endif
++ break;
+ case 'V':
+ # if defined(RT_TABLEID_MAX)
+ rtableid = (int)strtonum(optarg, 0,
+@@ -345,6 +354,12 @@ main(int argc, char *argv[])
+
+ /* Cruft to make sure options are clean, and used properly. */
+ if (argv[0] && !argv[1] && family == AF_UNIX) {
++ if (uflag)
++ errx(1, "cannot use -u and -U");
++# if defined(IPPROTO_DCCP) && defined(SOCK_DCCP)
++ if (dccpflag)
++ errx(1, "cannot use -Z and -U");
++# endif
+ host = argv[0];
+ uport = NULL;
+ } else if (!argv[0] && lflag) {
+@@ -386,8 +401,20 @@ main(int argc, char *argv[])
+ if (family != AF_UNIX) {
+ memset(&hints, 0, sizeof(struct addrinfo));
+ hints.ai_family = family;
+- hints.ai_socktype = uflag ? SOCK_DGRAM : SOCK_STREAM;
+- hints.ai_protocol = uflag ? IPPROTO_UDP : IPPROTO_TCP;
++ if (uflag) {
++ hints.ai_socktype = SOCK_DGRAM;
++ hints.ai_protocol = IPPROTO_UDP;
++ }
++# if defined(IPPROTO_DCCP) && defined(SOCK_DCCP)
++ else if (dccpflag) {
++ hints.ai_socktype = SOCK_DCCP;
++ hints.ai_protocol = IPPROTO_DCCP;
++ }
++# endif
++ else {
++ hints.ai_socktype = SOCK_STREAM;
++ hints.ai_protocol = IPPROTO_TCP;
++ }
+ if (nflag)
+ hints.ai_flags |= AI_NUMERICHOST;
+ }
+@@ -395,7 +422,10 @@ main(int argc, char *argv[])
+ if (xflag) {
+ if (uflag)
+ errx(1, "no proxy support for UDP mode");
+-
++# if defined(IPPROTO_DCCP) && defined(SOCK_DCCP)
++ if (dccpflag)
++ errx(1, "no proxy support for DCCP mode");
++# endif
+ if (lflag)
+ errx(1, "no proxy support for listen");
+
+@@ -439,12 +469,12 @@ main(int argc, char *argv[])
+ err(1, NULL);
+
+ char* local;
+- if (family == AF_INET6
++ if (family == AF_INET6 )
+ local = "0.0.0.0";
+ else if (family == AF_INET)
+ local = ":::";
+ else
+- local = "unknown"
++ local = "unknown";
+ fprintf(stderr, "Listening on [%s] (family %d, port %d)\n",
+ host ?: local,
+ family,
+@@ -549,19 +579,20 @@ main(int argc, char *argv[])
+ }
+ }
+
++ char *proto = proto_name(uflag, dccpflag);
+ /* Don't look up port if -n. */
+ if (nflag)
+ sv = NULL;
+ else {
+ sv = getservbyport(
+ ntohs(atoi(portlist[i])),
+- uflag ? "udp" : "tcp");
++ proto);
+ }
+
+ fprintf(stderr,
+ "Connection to %s %s port [%s/%s] "
+ "succeeded!\n", host, portlist[i],
+- uflag ? "udp" : "tcp",
++ proto,
+ sv ? sv->s_name : "*");
+ }
+ if (Fflag)
+@@ -663,6 +694,24 @@ unix_listen(char *path)
+ return (s);
+ }
+
++char *proto_name(int uflag, int dccpflag) {
++
++ char *proto = NULL;
++ if (uflag) {
++ proto = "udp";
++ }
++# if defined(IPPROTO_DCCP) && defined(SOCK_DCCP)
++ else if (dccpflag) {
++ proto = "dccp";
++ }
++# endif
++ else {
++ proto = "tcp";
++ }
++
++ return proto;
++}
++
+ /*
+ * remote_connect()
+ * Returns a socket connected to a remote host. Properly binds to a local
+@@ -699,8 +748,21 @@ remote_connect(const char *host, const char *port, struct addrinfo hints)
+ # endif
+ memset(&ahints, 0, sizeof(struct addrinfo));
+ ahints.ai_family = res0->ai_family;
+- ahints.ai_socktype = uflag ? SOCK_DGRAM : SOCK_STREAM;
+- ahints.ai_protocol = uflag ? IPPROTO_UDP : IPPROTO_TCP;
++ if (uflag) {
++ ahints.ai_socktype = SOCK_DGRAM;
++ ahints.ai_protocol = IPPROTO_UDP;
++
++ }
++# if defined(IPPROTO_DCCP) && defined(SOCK_DCCP)
++ else if (dccpflag) {
++ hints.ai_socktype = SOCK_DCCP;
++ hints.ai_protocol = IPPROTO_DCCP;
++ }
++# endif
++ else {
++ ahints.ai_socktype = SOCK_STREAM;
++ ahints.ai_protocol = IPPROTO_TCP;
++ }
+ ahints.ai_flags = AI_PASSIVE;
+ if ((error = getaddrinfo(sflag, pflag, &ahints, &ares)))
+ errx(1, "getaddrinfo: %s", gai_strerror(error));
+@@ -712,15 +774,19 @@ remote_connect(const char *host, const char *port, struct addrinfo hints)
+ }
+
+ set_common_sockopts(s, res0->ai_family);
++ char *proto = proto_name(uflag, dccpflag);
+
+- if ((error = connect_with_timeout(s, res0->ai_addr, res0->ai_addrlen, timeout))== CONNECTION_SUCCESS)
++ if ((error = connect_with_timeout(s, res0->ai_addr, res0->ai_addrlen, timeout))== CONNECTION_SUCCESS) {
+ break;
+- else if (vflag && error == CONNECTION_FAILED)
++ }
++ else if (vflag && error == CONNECTION_FAILED) {
+ warn("connect to %s port %s (%s) failed", host, port,
+- uflag ? "udp" : "tcp");
+- else if (vflag && error == CONNECTION_TIMEOUT)
++ proto);
++ }
++ else if (vflag && error == CONNECTION_TIMEOUT) {
+ warn("connect to %s port %s (%s) timed out", host, port,
+- uflag ? "udp" : "tcp");
++ proto);
++ }
+
+ close(s);
+ s = -1;
+@@ -1250,7 +1316,8 @@ build_ports(char *p)
+ int hi, lo, cp;
+ int x = 0;
+
+- sv = getservbyname(p, uflag ? "udp" : "tcp");
++ char *proto = proto_name(uflag, dccpflag);
++ sv = getservbyname(p, proto);
+ if (sv) {
+ portlist[0] = calloc(1, PORT_MAX_LEN);
+ if (portlist[0] == NULL)
+@@ -1484,6 +1551,7 @@ help(void)
+ \t-w secs\t Timeout for connects and final net reads\n\
+ \t-X proto Proxy protocol: \"4\", \"5\" (SOCKS) or \"connect\"\n\
+ \t-x addr[:port]\tSpecify proxy address and port\n\
++ \t-Z DCCP mode\n\
+ \t-z Zero-I/O mode [used for scanning]\n\
+ Port numbers can be individual or ranges: lo-hi [inclusive]\n");
+ exit(0);
+@@ -1493,7 +1561,7 @@ void
+ usage(int ret)
+ {
+ fprintf(stderr,
+- "usage: nc [-46CDdFhklNnrStUuvz] [-I length] [-i interval] [-O length]\n"
++ "usage: nc [-46CDdFhklNnrStUuvZz] [-I length] [-i interval] [-O length]\n"
+ "\t [-P proxy_username] [-p source_port] [-q seconds] [-s source]\n"
+ "\t [-T toskeyword] [-V rtable] [-w timeout] [-X proxy_protocol]\n"
+ "\t [-x proxy_address[:port]] [destination] [port]\n");
+--
diff --git a/repo/netcat/0009-serialized-handling-multiple-clients.patch b/repo/netcat/0009-serialized-handling-multiple-clients.patch
new file mode 100644
index 0000000..0b32737
--- /dev/null
+++ b/repo/netcat/0009-serialized-handling-multiple-clients.patch
@@ -0,0 +1,75 @@
+From: Aron Xu <aron@debian.org>
+Date: Tue, 14 Feb 2012 23:02:00 +0800
+Subject: serialized handling multiple clients
+
+---
+ netcat.c | 39 +++++++++++++++++++--------------------
+ 1 file changed, 19 insertions(+), 20 deletions(-)
+
+diff --git a/netcat.c b/netcat.c
+index f4d85af..5d3a2d3 100644
+--- a/netcat.c
++++ b/netcat.c
+@@ -459,26 +459,24 @@ main(int argc, char *argv[])
+ s = unix_bind(host);
+ else
+ s = unix_listen(host);
+- }
++ } else
++ s = local_listen(host, uport, hints);
++ if (s < 0)
++ err(1, NULL);
++
++ char* local;
++ if (family == AF_INET6)
++ local = ":::";
++ else
++ local = "0.0.0.0";
++ fprintf(stderr, "Listening on [%s] (family %d, port %d)\n",
++ host ?: local,
++ family,
++ *uport);
+
+ /* Allow only one connection at a time, but stay alive. */
+ for (;;) {
+- if (family != AF_UNIX)
+- s = local_listen(host, uport, hints);
+- if (s < 0)
+- err(1, NULL);
+
+- char* local;
+- if (family == AF_INET6 )
+- local = "0.0.0.0";
+- else if (family == AF_INET)
+- local = ":::";
+- else
+- local = "unknown";
+- fprintf(stderr, "Listening on [%s] (family %d, port %d)\n",
+- host ?: local,
+- family,
+- *uport);
+ /*
+ * For UDP and -k, don't connect the socket, let it
+ * receive datagrams from multiple socket pairs.
+@@ -525,15 +523,16 @@ main(int argc, char *argv[])
+ close(connfd);
+ }
+
+- if (family != AF_UNIX)
++ if (kflag)
++ continue;
++ if (family != AF_UNIX) {
+ close(s);
++ }
+ else if (uflag) {
+ if (connect(s, NULL, 0) < 0)
+ err(1, "connect");
+ }
+-
+- if (!kflag)
+- break;
++ break;
+ }
+ } else if (family == AF_UNIX) {
+ ret = 0;
+--
diff --git a/repo/netcat/0010-misc-failures-and-features.patch b/repo/netcat/0010-misc-failures-and-features.patch
new file mode 100644
index 0000000..507f67d
--- /dev/null
+++ b/repo/netcat/0010-misc-failures-and-features.patch
@@ -0,0 +1,404 @@
+From: Aron Xu <aron@debian.org>
+Date: Mon, 13 Feb 2012 19:06:52 +0800
+Subject: misc failures and features
+
+---
+ Makefile | 3 +-
+ nc.1 | 76 ++++++++++++++++++++++++++++++++++++++++++++---
+ netcat.c | 101 +++++++++++++++++++++++++++++++++++++++++++--------------------
+ 3 files changed, 143 insertions(+), 37 deletions(-)
+
+diff --git a/Makefile b/Makefile
+index 96a6587..becd854 100644
+--- a/Makefile
++++ b/Makefile
+@@ -3,7 +3,8 @@
+ PROG= nc
+ SRCS= netcat.c atomicio.c socks.c
+
+-LIBS= `pkg-config --libs libbsd` -lresolv
++PKG_CONFIG ?= pkg-config
++LIBS= `$(PKG_CONFIG) --libs libbsd` -lresolv
+ OBJS= $(SRCS:.c=.o)
+ CFLAGS= -g -O2
+ LDFLAGS= -Wl,--no-add-needed
+diff --git a/nc.1 b/nc.1
+index fe42909..e95918a 100644
+--- a/nc.1
++++ b/nc.1
+@@ -34,7 +34,7 @@
+ .Sh SYNOPSIS
+ .Nm nc
+ .Bk -words
+-.Op Fl 46CDdFhklNnrStUuvZz
++.Op Fl 46bCDdFhklNnrStUuvZz
+ .Op Fl I Ar length
+ .Op Fl i Ar interval
+ .Op Fl O Ar length
+@@ -99,6 +99,8 @@ to use IPv4 addresses only.
+ Forces
+ .Nm
+ to use IPv6 addresses only.
++.It Fl b
++Allow broadcast.
+ .It Fl C
+ Send CRLF as line-ending.
+ .It Fl D
+@@ -345,6 +347,54 @@ and which side is being used as a
+ The connection may be terminated using an
+ .Dv EOF
+ .Pq Sq ^D .
++.Pp
++There is no
++.Fl c
++or
++.Fl e
++option in this netcat, but you still can execute a command after connection
++being established by redirecting file descriptors. Be cautious here because
++opening a port and let anyone connected execute arbitrary command on your
++site is DANGEROUS. If you really need to do this, here is an example:
++.Pp
++On
++.Sq server
++side:
++.Pp
++.Dl $ rm -f /tmp/f; mkfifo /tmp/f
++.Dl $ cat /tmp/f | /bin/sh -i 2>&1 | nc -l 127.0.0.1 1234 > /tmp/f
++.Pp
++On
++.Sq client
++side:
++.Pp
++.Dl $ nc host.example.com 1234
++.Dl $ (shell prompt from host.example.com)
++.Pp
++By doing this, you create a fifo at /tmp/f and make nc listen at port 1234
++of address 127.0.0.1 on
++.Sq server
++side, when a
++.Sq client
++establishes a connection successfully to that port, /bin/sh gets executed
++on
++.Sq server
++side and the shell prompt is given to
++.Sq client
++side.
++.Pp
++When connection is terminated,
++.Nm
++quits as well. Use
++.Fl k
++if you want it keep listening, but if the command quits this option won't
++restart it or keep
++.Nm
++running. Also don't forget to remove the file descriptor once you don't need
++it anymore:
++.Pp
++.Dl $ rm -f /tmp/f
++.Pp
+ .Sh DATA TRANSFER
+ The example in the previous section can be expanded to build a
+ basic data transfer model.
+@@ -404,15 +454,30 @@ The
+ flag can be used to tell
+ .Nm
+ to report open ports,
+-rather than initiate a connection.
++rather than initiate a connection. Usually it's useful to turn on verbose
++output to stderr by use this option in conjunction with
++.Fl v
++option.
++.Pp
+ For example:
+ .Bd -literal -offset indent
+-$ nc -z host.example.com 20-30
++$ nc \-zv host.example.com 20-30
+ Connection to host.example.com 22 port [tcp/ssh] succeeded!
+ Connection to host.example.com 25 port [tcp/smtp] succeeded!
+ .Ed
+ .Pp
+-The port range was specified to limit the search to ports 20 \- 30.
++The port range was specified to limit the search to ports 20 \- 30, and is
++scanned by increasing order.
++.Pp
++You can also specify a list of ports to scan, for example:
++.Bd -literal -offset indent
++$ nc \-zv host.example.com 80 20 22
++nc: connect to host.example.com 80 (tcp) failed: Connection refused
++nc: connect to host.example.com 20 (tcp) failed: Connection refused
++Connection to host.example.com port [tcp/ssh] succeeded!
++.Ed
++.Pp
++The ports are scanned by the order you given.
+ .Pp
+ Alternatively, it might be useful to know which server software
+ is running, and which versions.
+@@ -477,6 +542,9 @@ Original implementation by *Hobbit*
+ .br
+ Rewritten with IPv6 support by
+ .An Eric Jackson Aq Mt ericj@monkey.org .
++.br
++Modified for Debian port by Aron Xu
++.Aq aron@debian.org .
+ .Sh CAVEATS
+ UDP port scans using the
+ .Fl uz
+diff --git a/netcat.c b/netcat.c
+index 258a29a..c47fc0f 100644
+--- a/netcat.c
++++ b/netcat.c
+@@ -90,6 +90,7 @@
+ #include <netdb.h>
+ #include <poll.h>
+ #include <signal.h>
++#include <stddef.h>
+ #include <stdarg.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+@@ -121,6 +122,7 @@
+ #define UDP_SCAN_TIMEOUT 3 /* Seconds */
+
+ /* Command Line Options */
++int bflag; /* Allow Broadcast */
+ int Cflag = 0; /* CRLF line-ending */
+ int dflag; /* detached, no stdin */
+ int Fflag; /* fdpass sock to stdout */
+@@ -153,7 +155,7 @@ char *portlist[PORT_MAX+1];
+ char *unix_dg_tmp_socket;
+
+ void atelnet(int, unsigned char *, unsigned int);
+-void build_ports(char *);
++void build_ports(char **);
+ void help(void);
+ int local_listen(char *, char *, struct addrinfo);
+ void readwrite(int);
+@@ -182,11 +184,14 @@ int
+ main(int argc, char *argv[])
+ {
+ int ch, s, ret, socksv;
+- char *host, *uport;
++ char *host, **uport;
+ struct addrinfo hints;
+ struct servent *sv;
+ socklen_t len;
+- struct sockaddr_storage cliaddr;
++ union {
++ struct sockaddr_storage storage;
++ struct sockaddr_un forunix;
++ } cliaddr;
+ char *proxy = NULL;
+ const char *errstr, *proxyhost = "", *proxyport = NULL;
+ struct addrinfo proxyhints;
+@@ -202,7 +207,7 @@ main(int argc, char *argv[])
+ signal(SIGPIPE, SIG_IGN);
+
+ while ((ch = getopt(argc, argv,
+- "46CDdFhI:i:klNnO:P:p:q:rSs:tT:UuV:vw:X:x:Zz")) != -1) {
++ "46bCDdFhI:i:klNnO:P:p:q:rSs:tT:UuV:vw:X:x:Zz")) != -1) {
+ switch (ch) {
+ case '4':
+ family = AF_INET;
+@@ -210,6 +215,13 @@ main(int argc, char *argv[])
+ case '6':
+ family = AF_INET6;
+ break;
++ case 'b':
++# if defined(SO_BROADCAST)
++ bflag = 1;
++# else
++ errx(1, "no broadcast frame support available");
++# endif
++ break;
+ case 'U':
+ family = AF_UNIX;
+ break;
+@@ -354,35 +366,40 @@ main(int argc, char *argv[])
+
+ /* Cruft to make sure options are clean, and used properly. */
+ if (argv[0] && !argv[1] && family == AF_UNIX) {
+- if (uflag)
+- errx(1, "cannot use -u and -U");
+ # if defined(IPPROTO_DCCP) && defined(SOCK_DCCP)
+ if (dccpflag)
+ errx(1, "cannot use -Z and -U");
+ # endif
+ host = argv[0];
+ uport = NULL;
+- } else if (!argv[0] && lflag) {
+- if (sflag)
+- errx(1, "cannot use -s and -l");
+- if (zflag)
+- errx(1, "cannot use -z and -l");
+- if (pflag)
+- uport=pflag;
+- } else if (!lflag && kflag) {
+- errx(1, "cannot use -k without -l");
+- } else if (argv[0] && !argv[1]) {
+- if (!lflag)
+- usage(1);
+- uport = argv[0];
++ } else if (argv[0] && !argv[1] && lflag) {
++ if (pflag) {
++ uport = &pflag;
++ host = argv[0];
++ } else {
++ uport = argv;
++ host = NULL;
++ }
++ } else if (!argv[0] && lflag && pflag) {
++ uport = &pflag;
+ host = NULL;
+ } else if (argv[0] && argv[1]) {
+ host = argv[0];
+- uport = argv[1];
++ uport = &argv[1];
+ } else
+ usage(1);
+
+-
++ if (lflag) {
++ if (sflag)
++ errx(1, "cannot use -s and -l");
++ if (zflag)
++ errx(1, "cannot use -z and -l");
++ if (pflag)
++ /* This still does not work well because of getopt mess
++ errx(1, "cannot use -p and -l"); */
++ uport = &pflag;
++ } else if (!lflag && kflag)
++ errx(1, "cannot use -k without -l");
+
+ /* Get name of temporary socket for unix datagram client */
+ if ((family == AF_UNIX) && uflag && !lflag) {
+@@ -460,7 +477,7 @@ main(int argc, char *argv[])
+ else
+ s = unix_listen(host);
+ } else
+- s = local_listen(host, uport, hints);
++ s = local_listen(host, *uport, hints);
+ if (s < 0)
+ err(1, NULL);
+
+@@ -469,7 +486,8 @@ main(int argc, char *argv[])
+ local = ":::";
+ else
+ local = "0.0.0.0";
+- fprintf(stderr, "Listening on [%s] (family %d, port %d)\n",
++ if (vflag && (family != AF_UNIX))
++ fprintf(stderr, "Listening on [%s] (family %d, port %s)\n",
+ host ?: local,
+ family,
+ *uport);
+@@ -632,6 +650,8 @@ unix_bind(char *path)
+ return (-1);
+ }
+
++ unlink(path);
++
+ if (bind(s, (struct sockaddr *)&sun, SUN_LEN(&sun)) < 0) {
+ close(s);
+ return (-1);
+@@ -653,8 +673,10 @@ unix_connect(char *path)
+ if ((s = unix_bind(unix_dg_tmp_socket)) < 0)
+ return (-1);
+ } else {
+- if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
++ if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
++ errx(1,"create unix socket failed");
+ return (-1);
++ }
+ }
+ (void)fcntl(s, F_SETFD, FD_CLOEXEC);
+
+@@ -665,9 +687,11 @@ unix_connect(char *path)
+ sizeof(sun.sun_path)) {
+ close(s);
+ errno = ENAMETOOLONG;
++ warn("unix connect abandoned");
+ return (-1);
+ }
+ if (connect(s, (struct sockaddr *)&sun, SUN_LEN(&sun)) < 0) {
++ warn("unix connect failed");
+ close(s);
+ return (-1);
+ }
+@@ -1307,22 +1331,23 @@ atelnet(int nfd, unsigned char *buf, unsigned int size)
+ * that we should try to connect to.
+ */
+ void
+-build_ports(char *p)
++build_ports(char **p)
+ {
+ struct servent *sv;
+ const char *errstr;
+ char *n;
+ int hi, lo, cp;
+ int x = 0;
++ int i;
+
+ char *proto = proto_name(uflag, dccpflag);
+- sv = getservbyname(p, proto);
++ sv = getservbyname(*p, proto);
+ if (sv) {
+ portlist[0] = calloc(1, PORT_MAX_LEN);
+ if (portlist[0] == NULL)
+ err(1, NULL);
+ snprintf(portlist[0], PORT_MAX_LEN, "%d", ntohs(sv->s_port));
+- } else if ((n = strchr(p, '-')) != NULL) {
++ } else if ((n = strchr(*p, '-')) != NULL) {
+ *n = '\0';
+ n++;
+
+@@ -1330,9 +1355,9 @@ build_ports(char *p)
+ hi = strtonum(n, 1, PORT_MAX, &errstr);
+ if (errstr)
+ errx(1, "port number %s: %s", errstr, n);
+- lo = strtonum(p, 1, PORT_MAX, &errstr);
++ lo = strtonum(*p, 1, PORT_MAX, &errstr);
+ if (errstr)
+- errx(1, "port number %s: %s", errstr, p);
++ errx(1, "port number %s: %s", errstr, *p);
+
+ if (lo > hi) {
+ cp = hi;
+@@ -1362,10 +1387,12 @@ build_ports(char *p)
+ }
+ }
+ } else {
+- hi = strtonum(p, 1, PORT_MAX, &errstr);
++ hi = strtonum(*p, 1, PORT_MAX, &errstr);
+ if (errstr)
+- errx(1, "port number %s: %s", errstr, p);
+- portlist[0] = strdup(p);
++ errx(1, "port number %s: %s", errstr, *p);
++ for (i=0;p[i];i++) {
++ portlist[i] = strdup(p[i]);
++ }
+ if (portlist[0] == NULL)
+ err(1, NULL);
+ }
+@@ -1400,6 +1427,15 @@ set_common_sockopts(int s, int af)
+ {
+ int x = 1;
+
++# if defined(SO_BROADCAST)
++ if (bflag) {
++ /* allow datagram sockets to send packets to a broadcast address
++ * (this option has no effect on stream-oriented sockets) */
++ if (setsockopt(s, SOL_SOCKET, SO_BROADCAST,
++ &x, sizeof(x)) == -1)
++ err(1, NULL);
++ }
++# endif
+ # if defined(TCP_MD5SIG)
+ if (Sflag) {
+ if (setsockopt(s, IPPROTO_TCP, TCP_MD5SIG,
+@@ -1523,6 +1559,7 @@ help(void)
+ fprintf(stderr, "\tCommand Summary:\n\
+ \t-4 Use IPv4\n\
+ \t-6 Use IPv6\n\
++ \t-b Allow broadcast\n\
+ \t-C Send CRLF as line-ending\n\
+ \t-D Enable the debug socket option\n\
+ \t-d Detach from stdin\n\
+--
diff --git a/repo/netcat/base64.c b/repo/netcat/base64.c
new file mode 100644
index 0000000..95da284
--- /dev/null
+++ b/repo/netcat/base64.c
@@ -0,0 +1,315 @@
+/*
+ * Copyright (c) 1996-1999 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+/*
+ * Portions Copyright (c) 1995 by International Business Machines, Inc.
+ *
+ * International Business Machines, Inc. (hereinafter called IBM) grants
+ * permission under its copyrights to use, copy, modify, and distribute this
+ * Software with or without fee, provided that the above copyright notice and
+ * all paragraphs of this notice appear in all copies, and that the name of IBM
+ * not be used in connection with the marketing of any product incorporating
+ * the Software or modifications thereof, without specific, written prior
+ * permission.
+ *
+ * To the extent it has a right to do so, IBM grants an immunity from suit
+ * under its patents, if any, for the use, sale or manufacture of products to
+ * the extent that such products are used for performing Domain Name System
+ * dynamic updates in TCP/IP networks by means of the Software. No immunity is
+ * granted for any product per se or for any other function of any product.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE. IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
+ * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN
+ * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#if !defined(LINT) && !defined(CODECENTER)
+static const char rcsid[] = "$BINDId: base64.c,v 8.7 1999/10/13 16:39:33 vixie Exp $";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+
+#include <ctype.h>
+#include <resolv.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+#define Assert(Cond) if (!(Cond)) abort()
+
+static const char Base64[] =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+static const char Pad64 = '=';
+
+/* (From RFC1521 and draft-ietf-dnssec-secext-03.txt)
+ The following encoding technique is taken from RFC 1521 by Borenstein
+ and Freed. It is reproduced here in a slightly edited form for
+ convenience.
+
+ A 65-character subset of US-ASCII is used, enabling 6 bits to be
+ represented per printable character. (The extra 65th character, "=",
+ is used to signify a special processing function.)
+
+ The encoding process represents 24-bit groups of input bits as output
+ strings of 4 encoded characters. Proceeding from left to right, a
+ 24-bit input group is formed by concatenating 3 8-bit input groups.
+ These 24 bits are then treated as 4 concatenated 6-bit groups, each
+ of which is translated into a single digit in the base64 alphabet.
+
+ Each 6-bit group is used as an index into an array of 64 printable
+ characters. The character referenced by the index is placed in the
+ output string.
+
+ Table 1: The Base64 Alphabet
+
+ Value Encoding Value Encoding Value Encoding Value Encoding
+ 0 A 17 R 34 i 51 z
+ 1 B 18 S 35 j 52 0
+ 2 C 19 T 36 k 53 1
+ 3 D 20 U 37 l 54 2
+ 4 E 21 V 38 m 55 3
+ 5 F 22 W 39 n 56 4
+ 6 G 23 X 40 o 57 5
+ 7 H 24 Y 41 p 58 6
+ 8 I 25 Z 42 q 59 7
+ 9 J 26 a 43 r 60 8
+ 10 K 27 b 44 s 61 9
+ 11 L 28 c 45 t 62 +
+ 12 M 29 d 46 u 63 /
+ 13 N 30 e 47 v
+ 14 O 31 f 48 w (pad) =
+ 15 P 32 g 49 x
+ 16 Q 33 h 50 y
+
+ Special processing is performed if fewer than 24 bits are available
+ at the end of the data being encoded. A full encoding quantum is
+ always completed at the end of a quantity. When fewer than 24 input
+ bits are available in an input group, zero bits are added (on the
+ right) to form an integral number of 6-bit groups. Padding at the
+ end of the data is performed using the '=' character.
+
+ Since all base64 input is an integral number of octets, only the
+ -------------------------------------------------
+ following cases can arise:
+
+ (1) the final quantum of encoding input is an integral
+ multiple of 24 bits; here, the final unit of encoded
+ output will be an integral multiple of 4 characters
+ with no "=" padding,
+ (2) the final quantum of encoding input is exactly 8 bits;
+ here, the final unit of encoded output will be two
+ characters followed by two "=" padding characters, or
+ (3) the final quantum of encoding input is exactly 16 bits;
+ here, the final unit of encoded output will be three
+ characters followed by one "=" padding character.
+ */
+
+int
+b64_ntop(const uint8_t* src, size_t srclength, char* target, size_t targsize)
+{
+ size_t datalength = 0;
+ uint8_t input[3];
+ uint8_t output[4];
+ size_t i;
+
+ while (2 < srclength) {
+ input[0] = *src++;
+ input[1] = *src++;
+ input[2] = *src++;
+ srclength -= 3;
+
+ output[0] = input[0] >> 2;
+ output[1] = ((input[0] & 0x03) << 4) + (input[1] >> 4);
+ output[2] = ((input[1] & 0x0f) << 2) + (input[2] >> 6);
+ output[3] = input[2] & 0x3f;
+ Assert(output[0] < 64);
+ Assert(output[1] < 64);
+ Assert(output[2] < 64);
+ Assert(output[3] < 64);
+
+ if (datalength + 4 > targsize)
+ return (-1);
+ target[datalength++] = Base64[output[0]];
+ target[datalength++] = Base64[output[1]];
+ target[datalength++] = Base64[output[2]];
+ target[datalength++] = Base64[output[3]];
+ }
+
+ /* Now we worry about padding. */
+ if (0 != srclength) {
+ /* Get what's left. */
+ input[0] = input[1] = input[2] = '\0';
+ for (i = 0; i < srclength; i++)
+ input[i] = *src++;
+
+ output[0] = input[0] >> 2;
+ output[1] = ((input[0] & 0x03) << 4) + (input[1] >> 4);
+ output[2] = ((input[1] & 0x0f) << 2) + (input[2] >> 6);
+ Assert(output[0] < 64);
+ Assert(output[1] < 64);
+ Assert(output[2] < 64);
+
+ if (datalength + 4 > targsize)
+ return (-1);
+ target[datalength++] = Base64[output[0]];
+ target[datalength++] = Base64[output[1]];
+ if (srclength == 1)
+ target[datalength++] = Pad64;
+ else
+ target[datalength++] = Base64[output[2]];
+ target[datalength++] = Pad64;
+ }
+ if (datalength >= targsize)
+ return (-1);
+ target[datalength] = '\0'; /* Returned value doesn't count \0. */
+ return (datalength);
+}
+
+/* skips all whitespace anywhere.
+ converts characters, four at a time, starting at (or after)
+ src from base - 64 numbers into three 8 bit bytes in the target area.
+ it returns the number of data bytes stored at the target, or -1 on error.
+ */
+
+int b64_pton(const char* src, uint8_t* target, size_t targsize)
+{
+ int tarindex, state, ch;
+ char *pos;
+
+ state = 0;
+ tarindex = 0;
+
+ while ((ch = *src++) != '\0') {
+ if (isspace(ch)) /* Skip whitespace anywhere. */
+ continue;
+
+ if (ch == Pad64)
+ break;
+
+ pos = strchr(Base64, ch);
+ if (pos == 0) /* A non-base64 character. */
+ return (-1);
+
+ switch (state) {
+ case 0:
+ if (target) {
+ if ((size_t)tarindex >= targsize)
+ return (-1);
+ target[tarindex] = (pos - Base64) << 2;
+ }
+ state = 1;
+ break;
+ case 1:
+ if (target) {
+ if ((size_t)tarindex + 1 >= targsize)
+ return (-1);
+ target[tarindex] |= (pos - Base64) >> 4;
+ target[tarindex+1] = ((pos - Base64) & 0x0f)
+ << 4 ;
+ }
+ tarindex++;
+ state = 2;
+ break;
+ case 2:
+ if (target) {
+ if ((size_t)tarindex + 1 >= targsize)
+ return (-1);
+ target[tarindex] |= (pos - Base64) >> 2;
+ target[tarindex+1] = ((pos - Base64) & 0x03)
+ << 6;
+ }
+ tarindex++;
+ state = 3;
+ break;
+ case 3:
+ if (target) {
+ if ((size_t)tarindex >= targsize)
+ return (-1);
+ target[tarindex] |= (pos - Base64);
+ }
+ tarindex++;
+ state = 0;
+ break;
+ default:
+ abort();
+ }
+ }
+
+ /*
+ * We are done decoding Base-64 chars. Let's see if we ended
+ * on a byte boundary, and/or with erroneous trailing characters.
+ */
+
+ if (ch == Pad64) { /* We got a pad char. */
+ ch = *src++; /* Skip it, get next. */
+ switch (state) {
+ case 0: /* Invalid = in first position */
+ case 1: /* Invalid = in second position */
+ return (-1);
+
+ case 2: /* Valid, means one byte of info */
+ /* Skip any number of spaces. */
+ for ((void)NULL; ch != '\0'; ch = *src++)
+ if (!isspace(ch))
+ break;
+ /* Make sure there is another trailing = sign. */
+ if (ch != Pad64)
+ return (-1);
+ ch = *src++; /* Skip the = */
+ /* Fall through to "single trailing =" case. */
+ /* FALLTHROUGH */
+
+ case 3: /* Valid, means two bytes of info */
+ /*
+ * We know this char is an =. Is there anything but
+ * whitespace after it?
+ */
+ for ((void)NULL; ch != '\0'; ch = *src++)
+ if (!isspace(ch))
+ return (-1);
+
+ /*
+ * Now make sure for cases 2 and 3 that the "extra"
+ * bits that slopped past the last full byte were
+ * zeros. If we don't check them, they become a
+ * subliminal channel.
+ */
+ if (target && target[tarindex] != 0)
+ return (-1);
+ }
+ } else {
+ /*
+ * We ended by seeing the end of the string. Make sure we
+ * have no partial bytes lying around.
+ */
+ if (state != 0)
+ return (-1);
+ }
+
+ return (tarindex);
+}
+
diff --git a/repo/netcat/netcat.xibuild b/repo/netcat/netcat.xibuild
new file mode 100644
index 0000000..4d84039
--- /dev/null
+++ b/repo/netcat/netcat.xibuild
@@ -0,0 +1,44 @@
+#!/bin/sh
+
+NAME="netcat"
+DESC="The TCP/IP swiss army knife. OpenBSD variant."
+
+MAKEDEPS=" libbsd"
+
+PKG_VER=1.130
+SOURCE="https://deb.debian.org/debian/pool/main/n/netcat-openbsd/netcat-openbsd_$PKG_VER.orig.tar.gz"
+
+ADDITIONAL="
+0001-port-to-linux-with-libsd.patch
+0002-connect-timeout.patch
+0003-get-sev-by-name.patch
+0004-send-crlf.patch
+0005-quit-timer.patch
+0006-udp-scan-timeout.patch
+0007-verbose-numeric-port.patch
+0008-dccp-support.patch
+0009-serialized-handling-multiple-clients.patch
+0010-misc-failures-and-features.patch
+base64.c
+"
+
+prepare() {
+ cd "$BUILD_ROOT"
+ cp "$BUILD_ROOT"/base64.c .
+ apply_patches
+ sed -i Makefile -e "/SRCS=/s;\(.*\);& base64.c;"
+}
+
+build() {
+ cd "$BUILD_ROOT"
+ make CFLAGS="$CFLAGS -DDEBIAN_VERSION=\"\\\"$PKG_VER\\\"\""
+}
+
+package() {
+ cd "$BUILD_ROOT"
+ install -d $PKG_DEST/usr/bin/
+ install -d $PKG_DEST/usr/share/man/man1/
+ install nc $PKG_DEST/usr/bin/nc
+ install nc.1 $PKG_DEST/usr/share/man/man1/nc.1
+}
+
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-22 04:54:56 +0000