4.3BSD/usr/contrib/X/comsat/comsat.c
/*
* fancied up comsat program.....
*/
#ifndef lint
static char *rcsid_comsat_c = "$Header: comsat.c,v 10.3 86/02/01 15:18:47 tony Rel $";
#endif lint
#define XWIND
#define SHORTSWEET
#ifndef lint
static char sccsid[] = "@(#)comsat.c 4.12 (Berkeley) 8/1/84";
#endif
#ifndef XWIND
#include <sys/types.h>
#include <sys/socket.h>
#else
#include <X/Xlib.h>
#include <ttyent.h>
#include <pwd.h>
char *indexs();
extern char **environ;
#endif
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/file.h>
#include <netinet/in.h>
#include <stdio.h>
#include <sgtty.h>
#include <utmp.h>
#include <signal.h>
#include <errno.h>
#include <netdb.h>
#include <syslog.h>
char *index(), *rindex();
/*
* comsat
*/
int debug = 0;
#define dprintf if (debug) printf
#define MAXUTMP 100 /* down from init */
struct sockaddr_in sin = { AF_INET };
extern errno;
char hostname[32];
struct utmp utmp[100];
int nutmp;
int uf;
unsigned utmpmtime; /* last modification time for utmp */
int onalrm();
int reapchildren();
long lastmsgtime;
#define MAXIDLE 120
#define NAMLEN (sizeof (uts[0].ut_name) + 1)
main(argc, argv)
int argc;
char *argv[];
{
register int cc;
char buf[BUFSIZ];
char msgbuf[100];
struct sockaddr_in from;
int fromlen;
/* verify proper invocation */
fromlen = sizeof (from);
if (getsockname(0, &from, &fromlen) < 0) {
fprintf(stderr, "%s: ", argv[0]);
perror("getsockname");
_exit(1);
}
chdir("/usr/spool/mail");
if ((uf = open("/etc/utmp",0)) < 0) {
openlog("comsat", 0, 0);
syslog(LOG_ERR, "/etc/utmp: %m");
(void) recv(0, msgbuf, sizeof (msgbuf) - 1, 0);
exit(1);
}
lastmsgtime = time(0);
gethostname(hostname, sizeof (hostname));
onalrm();
signal(SIGALRM, onalrm);
signal(SIGTTOU, SIG_IGN);
signal(SIGCHLD, reapchildren);
for (;;) {
cc = recv(0, msgbuf, sizeof (msgbuf) - 1, 0);
if (cc <= 0) {
if (errno != EINTR)
sleep(1);
errno = 0;
continue;
}
sigblock(1<<SIGALRM);
msgbuf[cc] = 0;
lastmsgtime = time(0);
mailfor(msgbuf);
sigsetmask(0);
}
}
reapchildren()
{
while (wait3((struct wait *)0, WNOHANG, (struct rusage *)0) > 0)
;
}
onalrm()
{
struct stat statbf;
struct utmp *utp;
if (time(0) - lastmsgtime >= MAXIDLE)
exit(0);
dprintf("alarm\n");
alarm(15);
fstat(uf, &statbf);
if (statbf.st_mtime > utmpmtime) {
dprintf(" changed\n");
utmpmtime = statbf.st_mtime;
lseek(uf, 0, 0);
nutmp = read(uf,utmp,sizeof(utmp))/sizeof(struct utmp);
} else
dprintf(" ok\n");
}
mailfor(name)
char *name;
{
register struct utmp *utp = &utmp[nutmp];
register char *cp;
int offset;
dprintf("mailfor %s\n", name);
cp = name;
while (*cp && *cp != '@')
cp++;
if (*cp == 0) {
dprintf("bad format\n");
return;
}
*cp = 0;
offset = atoi(cp+1);
while (--utp >= utmp)
if (!strncmp(utp->ut_name, name, sizeof(utmp[0].ut_name)))
notify(utp, offset);
}
char *cr;
notify(utp, offset)
register struct utmp *utp;
{
int fd, flags, n, err, msglen;
struct sgttyb gttybuf;
char tty[sizeof (utmp[0].ut_line) + 6], msgbuf[BUFSIZ];
char name[sizeof (utmp[0].ut_name) + 1];
struct stat stb;
#ifdef XWIND
struct ttyent *te;
char *s;
char dname[260];
#endif
strcpy(tty, "/dev/");
strncat(tty, utp->ut_line, sizeof(utp->ut_line));
dprintf("notify %s on %s\n", utp->ut_name, tty);
if (stat(tty, &stb) == 0 && (stb.st_mode & 0100) == 0) {
dprintf("wrong mode\n");
return;
}
strncpy(name, utp->ut_name, sizeof (utp->ut_name));
name[sizeof (name) - 1] = '\0';
#ifdef XWIND
te = getttynam(tty+5);
if ((s = indexs(te->ty_getty, "xterm")) &&
(s = indexs(s, " -L ")) &&
(s = index(s, ':'))) {
while (*(--s) != ' ') ;
s++;
if (*s == ':') {
gethostname(dname, sizeof (dname));
strcat(dname, s);
} else
strcpy(dname, s);
Xprintf(msgbuf, name, offset);
if (fork())
return;
Xnotify(name, dname, msgbuf);
}
#endif
if ((fd = open(tty, O_WRONLY|O_NDELAY)) < 0) {
dprintf("%s: open failed\n", tty);
return;
}
if ((flags = fcntl(fd, F_GETFL, 0)) == -1) {
dprintf("fcntl(F_GETFL) failed %d\n", errno);
return;
}
ioctl(fd, TIOCGETP, >tybuf);
cr = (gttybuf.sg_flags & CRMOD) ? "" : "\r";
#ifdef SHORTSWEET
sprintf(msgbuf, "%s\n\007New mail from ", cr);
#else
sprintf(msgbuf, "%s\n\007New mail for %s@%s\007 has arrived:%s\n",
cr, name, hostname, cr);
#endif
jkfprintf(msgbuf+strlen(msgbuf), name, offset);
if (fcntl(fd, F_SETFL, flags | FNDELAY) == -1)
goto oldway;
msglen = strlen(msgbuf);
n = write(fd, msgbuf, msglen);
err = errno;
(void) fcntl(fd, F_SETFL, flags);
(void) close(fd);
if (n == msglen)
return;
if (err != EWOULDBLOCK) {
dprintf("write failed %d\n", errno);
return;
}
oldway:
if (fork()) {
(void) close(fd);
return;
}
signal(SIGALRM, SIG_DFL);
alarm(30);
(void) write(fd, msgbuf, msglen);
exit(0);
}
#ifdef SHORTSWEET
jkfprintf(mp, name, offset)
register char *mp;
{
register FILE *fi;
char line[BUFSIZ];
dprintf("HERE %s's mail starting at %d\n", name, offset);
if ((fi = fopen(name, "r")) == NULL) {
dprintf("Cant read the mail\n");
return;
}
fseek(fi, offset, L_SET);
/*
* put the contents of the From: line into mp buffer
*/
while (fgets(line, sizeof (line), fi) != NULL) {
register char *cp;
if (strncmp (line, "From:", 5) != 0)
continue;
cp = index(line, '\n');
if (cp)
*cp = '\0';
for (cp = line+5; (*cp == ' ' || *cp == '\t'); cp++);
sprintf(mp, "%s%s\n", cp, cr);
return;
}
/* didn't find the From: line */
sprintf (mp, "???%s\n", cr);
}
#else
jkfprintf(mp, name, offset)
register char *mp;
{
register FILE *fi;
register int linecnt, charcnt;
char line[BUFSIZ];
int inheader;
dprintf("HERE %s's mail starting at %d\n", name, offset);
if ((fi = fopen(name, "r")) == NULL) {
dprintf("Cant read the mail\n");
return;
}
fseek(fi, offset, L_SET);
/*
* Print the first 7 lines or 560 characters of the new mail
* (whichever comes first). Skip header crap other than
* From, Subject, To, and Date.
*/
linecnt = 7;
charcnt = 560;
inheader = 1;
while (fgets(line, sizeof (line), fi) != NULL) {
register char *cp;
int cnt;
if (linecnt <= 0 || charcnt <= 0) {
sprintf(mp, "...more...%s\n", cr);
mp += strlen(mp);
return;
}
if (strncmp(line, "From ", 5) == 0)
continue;
if (inheader && (line[0] == ' ' || line[0] == '\t'))
continue;
cp = index(line, ':');
if (cp == 0 || (index(line, ' ') && index(line, ' ') < cp))
inheader = 0;
else
cnt = cp - line;
if (inheader &&
strncmp(line, "Date", cnt) &&
strncmp(line, "From", cnt) &&
strncmp(line, "Subject", cnt) &&
strncmp(line, "To", cnt))
continue;
cp = index(line, '\n');
if (cp)
*cp = '\0';
sprintf(mp, "%s%s\n", line, cr);
mp += strlen(mp);
linecnt--, charcnt -= strlen(line);
}
sprintf(mp, "----%s\n", cr);
mp += strlen(mp);
}
#endif
#ifdef XWIND
char *indexs(s1, s2)
register char *s1, *s2;
{
register int z = strlen(s2);
while (*s1 && strncmp(s1, s2, z))
s1++;
return(s1);
}
Xprintf(mp, name, offset)
register char *mp;
{
register FILE *fi;
char line[BUFSIZ];
dprintf("HERE %s's mail starting at %d\n", name, offset);
sprintf(mp, "You have new mail.");
if ((fi = fopen(name, "r")) == NULL) {
dprintf("Cant read the mail\n");
return;
}
fseek(fi, offset, L_SET);
/*
* put the contents of the From: line into mp buffer
*/
while (fgets(line, sizeof (line), fi) != NULL) {
register char *cp;
if (strncmp (line, "From:", 5) != 0)
continue;
cp = index(line, '\n');
if (cp)
*cp = '\0';
for (cp = line+5; (*cp == ' ' || *cp == '\t'); cp++);
sprintf(mp, "Mail from %s", cp);
break;
}
fclose(fi);
}
short cursor[] = {0x0000, 0x7ffe, 0x4fc2, 0x4ffe, 0x7ffe,
0x7ffe, 0x781e, 0x7ffe , 0x7ffe, 0x0000};
Xnotify (name, dname, notice)
char *name;
char *dname;
char *notice;
{
struct passwd *pwent;
char *envbuf[2];
char homebuf[280];
Display *dpy;
WindowInfo winfo;
FontInfo finfo;
Font font;
int width, height;
Window w;
XEvent rep;
int timeout = 0;
int reverse = 0;
int bwidth = 2;
int inner = 2;
int vertical = 2;
int volume = 0;
int forepix = BlackPixel;
int backpix = WhitePixel;
int brdrpix = BlackPixel;
int mouspix = BlackPixel;
char *option;
char *font_name = "8x13";
char *fore_color = NULL;
char *back_color = NULL;
char *brdr_color = NULL;
char *mous_color = NULL;
Color cdef;
if (!XOpenDisplay(dname))
exit(0);
if (pwent = getpwnam(name)) {
strcpy(homebuf, "HOME=");
strcat(homebuf, pwent->pw_dir);
envbuf[0] = homebuf;
envbuf[1] = NULL;
environ = envbuf;
if (option = XGetDefault("biff", "BodyFont"))
font_name = option;
fore_color = XGetDefault("biff", "Foreground");
back_color = XGetDefault("biff", "Background");
brdr_color = XGetDefault("biff", "Border");
mous_color = XGetDefault("biff", "Mouse");
if (option = XGetDefault("biff", "BorderWidth"))
bwidth = atoi(option);
if (option = XGetDefault("biff", "InternalBorder"))
inner = atoi(option);
if (option = XGetDefault("biff", "Timeout"))
timeout = atoi(option);
if (option = XGetDefault("biff", "Volume"))
volume = atoi(option);
if (option = XGetDefault("biff", "Offset"))
vertical = atoi(option);
if ((option = XGetDefault("biff", "ReverseVideo")) &&
strcmp(option, "on") == 0)
reverse = 1;
}
if (reverse) {
brdrpix = backpix;
backpix = forepix;
forepix = brdrpix;
mouspix = forepix;
}
if ((font = XGetFont(font_name)) == NULL)
exit(0);
if (DisplayCells() > 2) {
if (back_color && XParseColor(back_color, &cdef) &&
XGetHardwareColor(&cdef))
backpix = cdef.pixel;
if (fore_color && XParseColor(fore_color, &cdef) &&
XGetHardwareColor(&cdef))
forepix = cdef.pixel;
if (brdr_color && XParseColor(brdr_color, &cdef) &&
XGetHardwareColor(&cdef))
brdrpix = cdef.pixel;
if (mous_color && XParseColor(mous_color, &cdef) &&
XGetHardwareColor(&cdef))
mouspix = cdef.pixel;
}
XQueryFont(font, &finfo);
XQueryWindow (RootWindow, &winfo);
width = XQueryWidth (notice, font) + (inner << 1);
height = finfo.height + (inner << 1);
if (vertical < 0)
vertical += winfo.height - height - (bwidth << 1);
w = XCreateWindow(RootWindow, (winfo.width - width - (bwidth << 1)) / 2,
vertical, width, height, bwidth,
XMakeTile(brdrpix), XMakeTile(backpix));
XStoreName(w, notice);
XSelectInput(w, ButtonPressed|ButtonReleased|ExposeWindow);
XDefineCursor(w, XCreateCursor(16, 10, cursor, NULL, 7, 5,
mouspix, backpix, GXcopy));
XMapWindow(w);
XFeep(volume);
if (timeout > 0) {
signal(SIGALRM, exit);
alarm(timeout * 60);
}
if (inner) inner--;
while (1) {
XText(w, inner, inner, notice, strlen(notice),
font, forepix, backpix);
XNextEvent(&rep);
if (rep.type == ButtonPressed)
exit(0);
}
}
#endif