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-rw-r--r--usr.sbin/watch/watch.c442
1 files changed, 0 insertions, 442 deletions
diff --git a/usr.sbin/watch/watch.c b/usr.sbin/watch/watch.c
deleted file mode 100644
index 388614e..0000000
--- a/usr.sbin/watch/watch.c
+++ /dev/null
@@ -1,442 +0,0 @@
-/*
- * Copyright (c) 1995 Ugen J.S.Antsilevich
- *
- * Redistribution and use in source forms, with and without modification,
- * are permitted provided that this entire comment appears intact.
- *
- * Redistribution in binary form may occur without any restrictions.
- * Obviously, it would be nice if you gave credit where credit is due
- * but requiring it would be too onerous.
- *
- * This software is provided ``AS IS'' without any warranties of any kind.
- *
- * Snoop stuff.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/fcntl.h>
-#include <sys/filio.h>
-#include <sys/snoop.h>
-#include <sys/stat.h>
-#include <sys/linker.h>
-#include <sys/module.h>
-
-#include <err.h>
-#include <errno.h>
-#include <locale.h>
-#include <paths.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sysexits.h>
-#include <termcap.h>
-#include <termios.h>
-#include <time.h>
-#include <unistd.h>
-
-#define MSG_INIT "Snoop started."
-#define MSG_OFLOW "Snoop stopped due to overflow. Reconnecting."
-#define MSG_CLOSED "Snoop stopped due to tty close. Reconnecting."
-#define MSG_CHANGE "Snoop device change by user request."
-#define MSG_NOWRITE "Snoop device change due to write failure."
-
-
-#define DEV_NAME_LEN 1024 /* for /dev/ttyXX++ */
-#define MIN_SIZE 256
-
-#define CHR_SWITCH 24 /* Ctrl+X */
-#define CHR_CLEAR 23 /* Ctrl+V */
-
-static void clear(void);
-static void timestamp(const char *);
-static void set_tty(void);
-static void unset_tty(void);
-static void fatal(int, const char *);
-static int open_snp(void);
-static void cleanup(int);
-static void usage(void) __dead2;
-static void setup_scr(void);
-static void attach_snp(void);
-static void detach_snp(void);
-static void set_dev(const char *);
-static void ask_dev(char *, const char *);
-
-int opt_reconn_close = 0;
-int opt_reconn_oflow = 0;
-int opt_interactive = 1;
-int opt_timestamp = 0;
-int opt_write = 0;
-int opt_no_switch = 0;
-const char *opt_snpdev;
-
-char dev_name[DEV_NAME_LEN];
-int snp_io;
-int std_in = 0, std_out = 1;
-
-
-int clear_ok = 0;
-struct termios otty;
-char tbuf[1024], gbuf[1024];
-
-
-static void
-clear(void)
-{
- if (clear_ok)
- tputs(gbuf, 1, putchar);
- fflush(stdout);
-}
-
-static void
-timestamp(const char *buf)
-{
- time_t t;
- char btmp[1024];
- clear();
- printf("\n---------------------------------------------\n");
- t = time(NULL);
- strftime(btmp, 1024, "Time: %d %b %H:%M", localtime(&t));
- printf("%s\n", btmp);
- printf("%s\n", buf);
- printf("---------------------------------------------\n");
- fflush(stdout);
-}
-
-static void
-set_tty(void)
-{
- struct termios ntty;
-
- tcgetattr (std_in, &otty);
- ntty = otty;
- ntty.c_lflag &= ~ICANON; /* disable canonical operation */
- ntty.c_lflag &= ~ECHO;
-#ifdef FLUSHO
- ntty.c_lflag &= ~FLUSHO;
-#endif
-#ifdef PENDIN
- ntty.c_lflag &= ~PENDIN;
-#endif
-#ifdef IEXTEN
- ntty.c_lflag &= ~IEXTEN;
-#endif
- ntty.c_cc[VMIN] = 1; /* minimum of one character */
- ntty.c_cc[VTIME] = 0; /* timeout value */
-
- ntty.c_cc[VINTR] = 07; /* ^G */
- ntty.c_cc[VQUIT] = 07; /* ^G */
- tcsetattr (std_in, TCSANOW, &ntty);
-}
-
-static void
-unset_tty(void)
-{
- tcsetattr (std_in, TCSANOW, &otty);
-}
-
-
-static void
-fatal(int error, const char *buf)
-{
- unset_tty();
- if (buf)
- errx(error, "fatal: %s", buf);
- else
- exit(error);
-}
-
-static int
-open_snp(void)
-{
- int f, mode;
-
- if (opt_write)
- mode = O_RDWR;
- else
- mode = O_RDONLY;
-
- if (opt_snpdev == NULL)
- f = open(_PATH_DEV "snp", mode);
- else
- f = open(opt_snpdev, mode);
- if (f == -1)
- fatal(EX_OSFILE, "cannot open snoop device");
-
- return (f);
-}
-
-
-static void
-cleanup(int signo __unused)
-{
- if (opt_timestamp)
- timestamp("Logging Exited.");
- close(snp_io);
- unset_tty();
- exit(EX_OK);
-}
-
-
-static void
-usage(void)
-{
- fprintf(stderr, "usage: watch [-ciotnW] [tty name]\n");
- exit(EX_USAGE);
-}
-
-static void
-setup_scr(void)
-{
- char *cbuf = gbuf, *term;
- if (!opt_interactive)
- return;
- if ((term = getenv("TERM")))
- if (tgetent(tbuf, term) == 1)
- if (tgetstr("cl", &cbuf))
- clear_ok = 1;
- set_tty();
- clear();
-}
-
-static void
-detach_snp(void)
-{
- int fd;
-
- fd = -1;
- ioctl(snp_io, SNPSTTY, &fd);
-}
-
-static void
-attach_snp(void)
-{
- int snp_tty;
-
- snp_tty = open(dev_name, O_RDONLY | O_NONBLOCK);
- if (snp_tty < 0)
- fatal(EX_DATAERR, "can't open device");
- if (ioctl(snp_io, SNPSTTY, &snp_tty) != 0)
- fatal(EX_UNAVAILABLE, "cannot attach to tty");
- close(snp_tty);
- if (opt_timestamp)
- timestamp("Logging Started.");
-}
-
-
-static void
-set_dev(const char *name)
-{
- char buf[DEV_NAME_LEN];
- struct stat sb;
-
- if (strlen(name) > 5 && !strncmp(name, _PATH_DEV, sizeof _PATH_DEV - 1)) {
- snprintf(buf, sizeof buf, "%s", name);
- } else {
- if (strlen(name) == 2)
- sprintf(buf, "%s%s", _PATH_TTY, name);
- else
- sprintf(buf, "%s%s", _PATH_DEV, name);
- }
-
- if (*name == '\0' || stat(buf, &sb) < 0)
- fatal(EX_DATAERR, "bad device name");
-
- if ((sb.st_mode & S_IFMT) != S_IFCHR)
- fatal(EX_DATAERR, "must be a character device");
-
- strncpy(dev_name, buf, DEV_NAME_LEN);
-
- attach_snp();
-}
-
-void
-ask_dev(char *dbuf, const char *msg)
-{
- char buf[DEV_NAME_LEN];
- int len;
-
- clear();
- unset_tty();
-
- if (msg)
- printf("%s\n", msg);
- if (dbuf)
- printf("Enter device name [%s]:", dbuf);
- else
- printf("Enter device name:");
-
- if (fgets(buf, DEV_NAME_LEN - 1, stdin)) {
- len = strlen(buf);
- if (buf[len - 1] == '\n')
- buf[len - 1] = '\0';
- if (buf[0] != '\0' && buf[0] != ' ')
- strcpy(dbuf, buf);
- }
- set_tty();
-}
-
-#define READB_LEN 5
-
-int
-main(int ac, char *av[])
-{
- int ch, res, rv, nread;
- size_t b_size = MIN_SIZE;
- char *buf, chb[READB_LEN];
- fd_set fd_s;
-
- (void) setlocale(LC_TIME, "");
-
- if (isatty(std_out))
- opt_interactive = 1;
- else
- opt_interactive = 0;
-
-
- while ((ch = getopt(ac, av, "Wciotnf:")) != -1)
- switch (ch) {
- case 'W':
- opt_write = 1;
- break;
- case 'c':
- opt_reconn_close = 1;
- break;
- case 'i':
- opt_interactive = 1;
- break;
- case 'o':
- opt_reconn_oflow = 1;
- break;
- case 't':
- opt_timestamp = 1;
- break;
- case 'n':
- opt_no_switch = 1;
- break;
- case 'f':
- opt_snpdev = optarg;
- break;
- case '?':
- default:
- usage();
- }
-
- if (modfind("snp") == -1)
- if (kldload("snp") == -1 || modfind("snp") == -1)
- warn("snp module not available");
-
- signal(SIGINT, cleanup);
-
- snp_io = open_snp();
- setup_scr();
-
- if (*(av += optind) == NULL) {
- if (opt_interactive && !opt_no_switch)
- ask_dev(dev_name, MSG_INIT);
- else
- fatal(EX_DATAERR, "no device name given");
- } else
- strncpy(dev_name, *av, DEV_NAME_LEN);
-
- set_dev(dev_name);
-
- if (!(buf = (char *) malloc(b_size)))
- fatal(EX_UNAVAILABLE, "malloc failed");
-
- FD_ZERO(&fd_s);
-
- while (1) {
- if (opt_interactive)
- FD_SET(std_in, &fd_s);
- FD_SET(snp_io, &fd_s);
- res = select(snp_io + 1, &fd_s, NULL, NULL, NULL);
- if (opt_interactive && FD_ISSET(std_in, &fd_s)) {
-
- if ((res = ioctl(std_in, FIONREAD, &nread)) != 0)
- fatal(EX_OSERR, "ioctl(FIONREAD)");
- if (nread > READB_LEN)
- nread = READB_LEN;
- rv = read(std_in, chb, nread);
- if (rv == -1 || rv != nread)
- fatal(EX_IOERR, "read (stdin) failed");
-
- switch (chb[0]) {
- case CHR_CLEAR:
- clear();
- break;
- case CHR_SWITCH:
- if (!opt_no_switch) {
- detach_snp();
- ask_dev(dev_name, MSG_CHANGE);
- set_dev(dev_name);
- break;
- }
- default:
- if (opt_write) {
- rv = write(snp_io, chb, nread);
- if (rv == -1 || rv != nread) {
- detach_snp();
- if (opt_no_switch)
- fatal(EX_IOERR,
- "write failed");
- ask_dev(dev_name, MSG_NOWRITE);
- set_dev(dev_name);
- }
- }
-
- }
- }
- if (!FD_ISSET(snp_io, &fd_s))
- continue;
-
- if ((res = ioctl(snp_io, FIONREAD, &nread)) != 0)
- fatal(EX_OSERR, "ioctl(FIONREAD)");
-
- switch (nread) {
- case SNP_OFLOW:
- if (opt_reconn_oflow)
- attach_snp();
- else if (opt_interactive && !opt_no_switch) {
- ask_dev(dev_name, MSG_OFLOW);
- set_dev(dev_name);
- } else
- cleanup(-1);
- break;
- case SNP_DETACH:
- case SNP_TTYCLOSE:
- if (opt_reconn_close)
- attach_snp();
- else if (opt_interactive && !opt_no_switch) {
- ask_dev(dev_name, MSG_CLOSED);
- set_dev(dev_name);
- } else
- cleanup(-1);
- break;
- default:
- if (nread < (b_size / 2) && (b_size / 2) > MIN_SIZE) {
- free(buf);
- if (!(buf = (char *) malloc(b_size / 2)))
- fatal(EX_UNAVAILABLE, "malloc failed");
- b_size = b_size / 2;
- }
- if (nread > b_size) {
- b_size = (nread % 2) ? (nread + 1) : (nread);
- free(buf);
- if (!(buf = (char *) malloc(b_size)))
- fatal(EX_UNAVAILABLE, "malloc failed");
- }
- rv = read(snp_io, buf, nread);
- if (rv == -1 || rv != nread)
- fatal(EX_IOERR, "read failed");
- rv = write(std_out, buf, nread);
- if (rv == -1 || rv != nread)
- fatal(EX_IOERR, "write failed");
- }
- } /* While */
- return(0);
-}
-
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