diff options
Diffstat (limited to 'usr.bin/rwho/rwho.c')
| -rw-r--r-- | usr.bin/rwho/rwho.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/usr.bin/rwho/rwho.c b/usr.bin/rwho/rwho.c new file mode 100644 index 0000000..ee9c76d --- /dev/null +++ b/usr.bin/rwho/rwho.c @@ -0,0 +1,184 @@ +/* + * Copyright (c) 1983, 1993 + * The Regents of the University of California. 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. + */ + +#ifndef lint +static char copyright[] = +"@(#) Copyright (c) 1983, 1993\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +static char sccsid[] = "@(#)rwho.c 8.1 (Berkeley) 6/6/93"; +#endif /* not lint */ + +#include <sys/param.h> +#include <sys/dir.h> +#include <sys/file.h> +#include <protocols/rwhod.h> +#include <stdio.h> + +DIR *dirp; + +struct whod wd; +int utmpcmp(); +#define NUSERS 1000 +struct myutmp { + char myhost[MAXHOSTNAMELEN]; + int myidle; + struct outmp myutmp; +} myutmp[NUSERS]; +int nusers; + +#define WHDRSIZE (sizeof (wd) - sizeof (wd.wd_we)) +/* + * this macro should be shared with ruptime. + */ +#define down(w,now) ((now) - (w)->wd_recvtime > 11 * 60) + +char *ctime(), *strcpy(); +time_t now; +int aflg; + +main(argc, argv) + int argc; + char **argv; +{ + extern char *optarg; + extern int optind; + int ch; + struct direct *dp; + int cc, width; + register struct whod *w = &wd; + register struct whoent *we; + register struct myutmp *mp; + int f, n, i; + time_t time(); + + while ((ch = getopt(argc, argv, "a")) != EOF) + switch((char)ch) { + case 'a': + aflg = 1; + break; + case '?': + default: + fprintf(stderr, "usage: rwho [-a]\n"); + exit(1); + } + if (chdir(_PATH_RWHODIR) || (dirp = opendir(".")) == NULL) { + perror(_PATH_RWHODIR); + exit(1); + } + mp = myutmp; + (void)time(&now); + while (dp = readdir(dirp)) { + if (dp->d_ino == 0 || strncmp(dp->d_name, "whod.", 5)) + continue; + f = open(dp->d_name, O_RDONLY); + if (f < 0) + continue; + cc = read(f, (char *)&wd, sizeof (struct whod)); + if (cc < WHDRSIZE) { + (void) close(f); + continue; + } + if (down(w,now)) { + (void) close(f); + continue; + } + cc -= WHDRSIZE; + we = w->wd_we; + for (n = cc / sizeof (struct whoent); n > 0; n--) { + if (aflg == 0 && we->we_idle >= 60*60) { + we++; + continue; + } + if (nusers >= NUSERS) { + printf("too many users\n"); + exit(1); + } + mp->myutmp = we->we_utmp; mp->myidle = we->we_idle; + (void) strcpy(mp->myhost, w->wd_hostname); + nusers++; we++; mp++; + } + (void) close(f); + } + qsort((char *)myutmp, nusers, sizeof (struct myutmp), utmpcmp); + mp = myutmp; + width = 0; + for (i = 0; i < nusers; i++) { + int j = strlen(mp->myhost) + 1 + strlen(mp->myutmp.out_line); + if (j > width) + width = j; + mp++; + } + mp = myutmp; + for (i = 0; i < nusers; i++) { + char buf[BUFSIZ]; + (void)sprintf(buf, "%s:%s", mp->myhost, mp->myutmp.out_line); + printf("%-8.8s %-*s %.12s", + mp->myutmp.out_name, + width, + buf, + ctime((time_t *)&mp->myutmp.out_time)+4); + mp->myidle /= 60; + if (mp->myidle) { + if (aflg) { + if (mp->myidle >= 100*60) + mp->myidle = 100*60 - 1; + if (mp->myidle >= 60) + printf(" %2d", mp->myidle / 60); + else + printf(" "); + } else + printf(" "); + printf(":%02d", mp->myidle % 60); + } + printf("\n"); + mp++; + } + exit(0); +} + +utmpcmp(u1, u2) + struct myutmp *u1, *u2; +{ + int rc; + + rc = strncmp(u1->myutmp.out_name, u2->myutmp.out_name, 8); + if (rc) + return (rc); + rc = strncmp(u1->myhost, u2->myhost, 8); + if (rc) + return (rc); + return (strncmp(u1->myutmp.out_line, u2->myutmp.out_line, 8)); +} |
