diff options
author | archie <archie@FreeBSD.org> | 2002-01-22 22:01:25 +0000 |
---|---|---|
committer | archie <archie@FreeBSD.org> | 2002-01-22 22:01:25 +0000 |
commit | 8a9a43ad04f6a60f7ff87931188f94aa821569bf (patch) | |
tree | 7964148edf5b5a2afa94cb23773d975c862ab3a6 /usr.sbin | |
parent | bd3618d51e5235c70515df82556366f26dfcaab7 (diff) | |
download | FreeBSD-src-8a9a43ad04f6a60f7ff87931188f94aa821569bf.zip FreeBSD-src-8a9a43ad04f6a60f7ff87931188f94aa821569bf.tar.gz |
Add ngctl "write" command.
MFC after: 1 week
Diffstat (limited to 'usr.sbin')
-rw-r--r-- | usr.sbin/ngctl/Makefile | 2 | ||||
-rw-r--r-- | usr.sbin/ngctl/main.c | 1 | ||||
-rw-r--r-- | usr.sbin/ngctl/ngctl.8 | 1 | ||||
-rw-r--r-- | usr.sbin/ngctl/ngctl.h | 1 | ||||
-rw-r--r-- | usr.sbin/ngctl/write.c | 111 |
5 files changed, 115 insertions, 1 deletions
diff --git a/usr.sbin/ngctl/Makefile b/usr.sbin/ngctl/Makefile index 415b1b2..92d6d27 100644 --- a/usr.sbin/ngctl/Makefile +++ b/usr.sbin/ngctl/Makefile @@ -4,7 +4,7 @@ PROG= ngctl MAN= ngctl.8 SRCS= main.c mkpeer.c config.c connect.c name.c show.c list.c \ - msg.c debug.c shutdown.c rmhook.c status.c types.c + msg.c debug.c shutdown.c rmhook.c status.c types.c write.c DPADD= ${LIBNETGRAPH} LDADD= -lnetgraph diff --git a/usr.sbin/ngctl/main.c b/usr.sbin/ngctl/main.c index 5e9411c..8ff070b 100644 --- a/usr.sbin/ngctl/main.c +++ b/usr.sbin/ngctl/main.c @@ -73,6 +73,7 @@ static const struct ngcmd *const cmds[] = { &shutdown_cmd, &status_cmd, &types_cmd, + &write_cmd, &quit_cmd, NULL }; diff --git a/usr.sbin/ngctl/ngctl.8 b/usr.sbin/ngctl/ngctl.8 index 5d4a8ee..ca9e25b 100644 --- a/usr.sbin/ngctl/ngctl.8 +++ b/usr.sbin/ngctl/ngctl.8 @@ -110,6 +110,7 @@ show Show information about a node shutdown Shutdown a node status Get human readable status from a node types Show all installed node types +write Send a data packet down the hook named by "hook". quit Exit program .Ed .Pp diff --git a/usr.sbin/ngctl/ngctl.h b/usr.sbin/ngctl/ngctl.h index 56d0a3d..86411f7 100644 --- a/usr.sbin/ngctl/ngctl.h +++ b/usr.sbin/ngctl/ngctl.h @@ -89,6 +89,7 @@ extern const struct ngcmd show_cmd; extern const struct ngcmd shutdown_cmd; extern const struct ngcmd status_cmd; extern const struct ngcmd types_cmd; +extern const struct ngcmd write_cmd; extern const struct ngcmd quit_cmd; /* Data and control sockets */ diff --git a/usr.sbin/ngctl/write.c b/usr.sbin/ngctl/write.c new file mode 100644 index 0000000..d1bdca0 --- /dev/null +++ b/usr.sbin/ngctl/write.c @@ -0,0 +1,111 @@ + +/* + * write.c + * + * Copyright (c) 2002 Archie L. Cobbs + * All rights reserved. + * + * Subject to the following obligations and disclaimer of warranty, use and + * redistribution of this software, in source or object code forms, with or + * without modifications are expressly permitted by Archie L. Cobbs; + * provided, however, that: + * 1. Any and all reproductions of the source or object code must include the + * copyright notice above and the following disclaimer of warranties + * + * THIS SOFTWARE IS BEING PROVIDED BY ARCHIE L. COBBS AS IS", AND TO + * THE MAXIMUM EXTENT PERMITTED BY LAW, ARCHIE L. COBBS MAKES NO + * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, + * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. + * ARCHIE L. COBBS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY + * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS + * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. + * IN NO EVENT SHALL ARCHIE L. COBBS BE LIABLE FOR ANY DAMAGES + * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING + * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ARCHIE L. COBBS IS ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#include "ngctl.h" + +#define BUF_SIZE 8192 + +static int WriteCmd(int ac, char **av); + +const struct ngcmd write_cmd = { + WriteCmd, + "write hook < -f file | byte ... >", + "Send a data packet down the hook named by \"hook\".", + "The data may be contained in a file, or may be described directly" + " on the command line by supplying a sequence of bytes.", + { "w" } +}; + +static int +WriteCmd(int ac, char **av) +{ + u_int32_t sagbuf[64]; + struct sockaddr_ng *sag = (struct sockaddr_ng *)sagbuf; + u_char buf[BUF_SIZE]; + const char *hook; + FILE *fp; + u_int len; + int byte; + int i; + + /* Get arguments */ + if (ac < 3) + return(CMDRTN_USAGE); + hook = av[1]; + + /* Get data */ + if (strcmp(av[2], "-f") == 0) { + if (ac != 4) + return(CMDRTN_USAGE); + if ((fp = fopen(av[3], "r")) == NULL) { + warn("can't read file \"%s\"", av[3]); + return(CMDRTN_ERROR); + } + if ((len = fread(buf, 1, sizeof(buf), fp)) == 0) { + if (ferror(fp)) + warn("can't read file \"%s\"", av[3]); + else + warnx("file \"%s\" is empty", av[3]); + fclose(fp); + return(CMDRTN_ERROR); + } + fclose(fp); + } else { + for (i = 2, len = 0; i < ac && len < sizeof(buf); i++, len++) { + if (sscanf(av[i], "%i", &byte) != 1 + || (byte < -128 || byte > 255)) { + warnx("invalid byte \"%s\"", av[i]); + return(CMDRTN_ERROR); + } + buf[len] = (u_char)byte; + } + if (len == 0) + return(CMDRTN_USAGE); + } + + /* Send data */ + sag->sg_len = 3 + strlen(hook); + sag->sg_family = AF_NETGRAPH; + strlcpy(sag->sg_data, hook, sizeof(sagbuf) - 2); + if (sendto(dsock, buf, len, + 0, (struct sockaddr *)sag, sag->sg_len) == -1) { + warn("writing to hook \"%s\"", hook); + return(CMDRTN_ERROR); + } + + /* Done */ + return(CMDRTN_OK); +} + |