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Diffstat (limited to 'usr.bin/rup/rup.c')
| -rw-r--r-- | usr.bin/rup/rup.c | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/usr.bin/rup/rup.c b/usr.bin/rup/rup.c new file mode 100644 index 000000000000..5f605f55b413 --- /dev/null +++ b/usr.bin/rup/rup.c @@ -0,0 +1,240 @@ +/*- + * SPDX-License-Identifier: BSD-4-Clause + * + * Copyright (c) 1993, John Brezak + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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 <sys/param.h> +#include <sys/socket.h> + +#include <rpc/rpc.h> +#include <rpc/pmap_clnt.h> + +#undef FSHIFT /* Use protocol's shift and scale values */ +#undef FSCALE + +#include <rpcsvc/rstat.h> + +#include <arpa/inet.h> + +#include <err.h> +#include <netdb.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <time.h> +#include <unistd.h> + +#define HOST_WIDTH 15 + +static struct host_list { + struct host_list *next; + struct in_addr addr; +} *hosts; + +static int +search_host(struct in_addr addr) +{ + struct host_list *hp; + + if (!hosts) + return(0); + + for (hp = hosts; hp != NULL; hp = hp->next) { + if (hp->addr.s_addr == addr.s_addr) + return(1); + } + return(0); +} + +static void +remember_host(struct in_addr addr) +{ + struct host_list *hp; + + if (!(hp = (struct host_list *)malloc(sizeof(struct host_list)))) + errx(1, "no memory"); + hp->addr.s_addr = addr.s_addr; + hp->next = hosts; + hosts = hp; +} + +static bool_t +rstat_reply(statstime *host_stat, struct sockaddr_in *raddrp) +{ + struct tm *tmp_time; + struct tm host_time; + struct tm host_uptime; + char days_buf[16]; + char hours_buf[16]; + struct hostent *hp; + char *host; + time_t tmp_time_t; + + if (search_host(raddrp->sin_addr)) + return(0); + + hp = gethostbyaddr((char *)&raddrp->sin_addr.s_addr, + sizeof(struct in_addr), AF_INET); + if (hp) + host = hp->h_name; + else + host = inet_ntoa(raddrp->sin_addr); + + /* truncate hostname to fit nicely into field */ + if (strlen(host) > HOST_WIDTH) + host[HOST_WIDTH] = '\0'; + + printf("%-*s\t", HOST_WIDTH, host); + + tmp_time_t = host_stat->curtime.tv_sec; + tmp_time = localtime(&tmp_time_t); + host_time = *tmp_time; + + host_stat->curtime.tv_sec -= host_stat->boottime.tv_sec; + + tmp_time_t = host_stat->curtime.tv_sec; + tmp_time = gmtime(&tmp_time_t); + host_uptime = *tmp_time; + + #define updays (host_stat->curtime.tv_sec / 86400) + if (host_uptime.tm_yday != 0) + sprintf(days_buf, "%3d day%s, ", updays, + (updays > 1) ? "s" : ""); + else + days_buf[0] = '\0'; + + if (host_uptime.tm_hour != 0) + sprintf(hours_buf, "%2d:%02d, ", + host_uptime.tm_hour, host_uptime.tm_min); + else + if (host_uptime.tm_min != 0) + sprintf(hours_buf, "%2d mins, ", host_uptime.tm_min); + else if (host_stat->curtime.tv_sec < 60) + sprintf(hours_buf, "%2d secs, ", host_uptime.tm_sec); + else + hours_buf[0] = '\0'; + + printf(" %2d:%02d%cm up %9.9s%9.9s load average: %.2f %.2f %.2f\n", + (host_time.tm_hour % 12) ? host_time.tm_hour % 12 : 12, + host_time.tm_min, + (host_time.tm_hour >= 12) ? 'p' : 'a', + days_buf, + hours_buf, + (double)host_stat->avenrun[0]/FSCALE, + (double)host_stat->avenrun[1]/FSCALE, + (double)host_stat->avenrun[2]/FSCALE); + + remember_host(raddrp->sin_addr); + return(0); +} + +static int +onehost(char *host) +{ + CLIENT *rstat_clnt; + statstime host_stat; + struct sockaddr_in addr; + struct hostent *hp; + struct timeval tv; + + hp = gethostbyname(host); + if (hp == NULL) { + warnx("unknown host \"%s\"", host); + return(-1); + } + + rstat_clnt = clnt_create(host, RSTATPROG, RSTATVERS_TIME, "udp"); + if (rstat_clnt == NULL) { + warnx("%s %s", host, clnt_spcreateerror("")); + return(-1); + } + + bzero((char *)&host_stat, sizeof(host_stat)); + tv.tv_sec = 15; /* XXX ??? */ + tv.tv_usec = 0; + if (clnt_call(rstat_clnt, RSTATPROC_STATS, + (xdrproc_t)xdr_void, NULL, + (xdrproc_t)xdr_statstime, &host_stat, tv) != RPC_SUCCESS) { + warnx("%s: %s", host, clnt_sperror(rstat_clnt, host)); + clnt_destroy(rstat_clnt); + return(-1); + } + + memcpy(&addr.sin_addr.s_addr, hp->h_addr, sizeof(int)); + rstat_reply(&host_stat, &addr); + clnt_destroy(rstat_clnt); + return (0); +} + +static void +allhosts(void) +{ + statstime host_stat; + enum clnt_stat clnt_stat; + + clnt_stat = clnt_broadcast(RSTATPROG, RSTATVERS_TIME, RSTATPROC_STATS, + (xdrproc_t)xdr_void, NULL, + (xdrproc_t)xdr_statstime, &host_stat, + (resultproc_t)rstat_reply); + if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT) + errx(1, "%s", clnt_sperrno(clnt_stat)); +} + +static void +usage(void) +{ + fprintf(stderr, "usage: rup [host ...]\n"); + exit(1); +} + +int +main(int argc, char *argv[]) +{ + int ch; + + while ((ch = getopt(argc, argv, "?")) != -1) + switch (ch) { + default: + usage(); + } + + setlinebuf(stdout); + if (argc == optind) + allhosts(); + else { + for (; optind < argc; optind++) + (void) onehost(argv[optind]); + } + exit(0); +} |