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/*
* Copyright 2002 Damien Miller <djm@mindrot.org> All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 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 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "common.h"
static void
usage(void)
{
fprintf(stderr, "Usage: [-c ctlsock] softflowctl [command]\n");
}
int
main(int argc, char **argv)
{
const char *ctlsock_path;
char buf[8192], *command;
struct sockaddr_un ctl;
socklen_t ctllen;
int ctlsock, ch;
FILE *ctlf;
extern char *optarg;
extern int optind;
ctlsock_path = DEFAULT_CTLSOCK;
while ((ch = getopt(argc, argv, "hc:")) != -1) {
switch (ch) {
case 'h':
usage();
return (0);
case 'c':
ctlsock_path = optarg;
break;
default:
fprintf(stderr, "Invalid commandline option.\n");
usage();
exit(1);
}
}
/* Accept only one argument */
if (optind != argc - 1) {
usage();
exit(1);
}
command = argv[optind];
memset(&ctl, '\0', sizeof(ctl));
if (strlcpy(ctl.sun_path, ctlsock_path, sizeof(ctl.sun_path)) >=
sizeof(ctl.sun_path)) {
fprintf(stderr, "Control socket path too long.\n");
exit(1);
}
ctl.sun_path[sizeof(ctl.sun_path) - 1] = '\0';
ctl.sun_family = AF_UNIX;
ctllen = offsetof(struct sockaddr_un, sun_path) +
strlen(ctlsock_path) + 1;
#ifdef SOCK_HAS_LEN
ctl.sun_len = ctllen;
#endif
if ((ctlsock = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
fprintf(stderr, "ctl socket() error: %s\n",
strerror(errno));
exit(1);
}
if (connect(ctlsock, (struct sockaddr*)&ctl, sizeof(ctl)) == -1) {
fprintf(stderr, "ctl connect(\"%s\") error: %s\n",
ctl.sun_path, strerror(errno));
exit(1);
}
if ((ctlf = fdopen(ctlsock, "r+")) == NULL) {
fprintf(stderr, "fdopen: %s\n", strerror(errno));
exit(1);
}
setlinebuf(ctlf);
/* Send command */
if (fprintf(ctlf, "%s\n", command) < 0) {
fprintf(stderr, "write: %s\n", strerror(errno));
exit(1);
}
/* Write out reply */
while((fgets(buf, sizeof(buf), ctlf)) != NULL)
fputs(buf, stdout);
fclose(ctlf);
close(ctlsock);
exit(0);
}
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