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порты и ppp chat (ppp connect dialup)


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Ключевые слова: ppp, connect, dialup,  (найти похожие документы)
_ RU.UNIX.BSD (2:5077/15.22) _____________________________________ RU.UNIX.BSD _ From : Alex Zakirov 2:5029/5 03 Sep 99 09:26:56 Subj : порты и ppp chat ________________________________________________________________________________ Serg Ivanov <Serg.Ivanov@p113.f3.n5073.z2.fidonet.org> wrote: SI> Hiya, Igor! SI> At 01 Sep 99 10:37:43, Igor Sysoev wrote to All: IS>> Святым духом, что ли ? IS>> Чат прекрасно работает без оператора. SI> Он прекрасно это делает из-под ppp. Как ему объяснить где модем ? SI> Собственно надо в 8 утра говорить S0=8, в 17:00 S0=1 ;) резать ниже
#include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> #include <termios.h> #include <syslog.h> #include <signal.h> #include <err.h> #include <errno.h> #include <sys/types.h> #include <sys/wait.h> #include <sys/ioctl.h> #include <sys/fcntl.h> int crtscts = 0; int clocal = 1; int baud_rate = 57600; int restore_term; int cverbose = 0; int nolock = 0; struct termios inittermios; struct winsize wsinfo; char *devnam = "/dev/ttyd1"; char *connector = "chat -vs -f chat.txt"; char *chatfile = NULL; char *myname; char *lock_file; void set_up_tty(int,int); int lock(char *); void unlock(int); void usage(); int main(int argc, char **argv) { int ttyfd,c,fdflags; int pid,status; if ( (myname = strrchr(argv[0],'/')) ) myname++; else myname = argv[0]; /* Parsing options */ if ( argc < 2 ) usage(); while ( (c = getopt(argc,argv,"hl:s:c:mrv")) != -1 ) { switch (c) { case 'l': devnam = optarg; break; case 's': baud_rate = atoi(optarg); break; case 'c': chatfile = optarg; break; case 'v': cverbose = 1; break; case 'm': clocal = 1; break; case 'r': crtscts = 1; break; case 'n': nolock = 1; break; case 'h': default: usage(); } } argc -= optind; argv += optind; if ( argc < 1 && !chatfile ) usage(); connector = argv[0]; signal(SIGQUIT,unlock); signal(SIGTERM,unlock); signal(SIGINT,unlock); if ( !nolock ) lock(devnam); /* open tty */ if ( (ttyfd = open(devnam,O_NONBLOCK|O_RDWR,0)) < 0 ) { errx(-1, "Failed to open %s: %s",devnam,strerror(errno)); } /* reset nonblocking mode */ if ( (fdflags = fcntl(ttyfd, F_GETFL)) == -1 || fcntl(ttyfd, F_SETFL, fdflags & ~O_NONBLOCK) < 0) errx(-1,"can't reset O_NONBLOCK on %s: %s",devnam,strerror(errno)); /* setup tty taken from sys-bsd.c (pppd) */ set_up_tty(ttyfd,clocal); /* run program */ pid = fork(); if ( pid < 0 ) errx(-1,"can't fork"); if ( pid == 0 ) { /* redirect stdin/stdout to opened TTY */ dup2(ttyfd,0); close(ttyfd); dup2(0,1); if ( chatfile ) { if ( cverbose ) execl("/usr/bin/chat","chat","-vsf",chatfile,(char*)0); else execl("/usr/bin/chat","chat","-Sf",chatfile,(char*)0); } else { execl("/bin/sh","sh","-c",connector,(char*)0); } fprintf(stderr,"can't exec /bin/sh: %s",strerror(errno)); _exit(99); } while ( waitpid(pid, &status, 0) < 0 ) { if ( errno == EINTR ) continue; errx(1,"error waiting for scripting process"); } unlock(1); return(status == 0 ? 0: -1); } void usage() { printf("usage: %s [options] <progname>\n"\ " -m - reset CLOCAL\n"\ " -r - set CRTSCTS\n"\ " -n - don't lock device\n"\ " -s <speed> - serial port baud rate [57600]\n"\ " -l <tty> - tty [/dev/ttyd1]\n"\ " -c <file> - run '/usr/bin/chat -Sf <file>' instead progname\n"\ " -v - run '-c' mode with '-vsf' options\n"\ " progname - run this program with stdin/stdout on tty\n", myname); exit(1); } /* * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity, * at the requested speed, etc. If `local' is true, set CLOCAL * regardless of whether the modem option was specified. * * For *BSD, we assume that speed_t values numerically equal bits/second. */ void set_up_tty(fd, local) int fd, local; { struct termios tios; if (tcgetattr(fd, &tios) < 0) { errx(1,"tcgetattr: %s",strerror(errno)); } if (!restore_term) { inittermios = tios; ioctl(fd, TIOCGWINSZ, &wsinfo); } tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL); if (crtscts) tios.c_cflag |= CRTSCTS; else tios.c_cflag &= ~CRTSCTS; tios.c_cflag |= CS8 | CREAD | HUPCL; if (local) tios.c_cflag |= CLOCAL; tios.c_iflag = IGNBRK | IGNPAR; tios.c_oflag = 0; tios.c_lflag = 0; tios.c_cc[VMIN] = 1; tios.c_cc[VTIME] = 0; cfsetospeed(&tios, baud_rate); cfsetispeed(&tios, baud_rate); if (tcsetattr(fd, TCSAFLUSH, &tios) < 0) { errx(1,"tcsetattr: %s",strerror(errno)); } restore_term = 1; } /* * lock - create a lock file for the named lock device */ #define LOCK_PREFIX "/var/spool/lock/LCK.." int lock(dev) char *dev; { char hdb_lock_buffer[12]; int fd, pid, n; char *p; if ((p = strrchr(dev, '/')) != NULL) dev = p + 1; lock_file = malloc(strlen(LOCK_PREFIX) + strlen(dev) + 1); if (lock_file == NULL) errx(-1,"lock file name"); strcat(strcpy(lock_file, LOCK_PREFIX), dev); while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) { if (errno == EEXIST && (fd = open(lock_file, O_RDONLY, 0)) >= 0) { /* Read the lock file to find out who has the device locked */ n = read(fd, hdb_lock_buffer, 11); if (n <= 0) { syslog(LOG_ERR, "Can't read pid from lock file %s", lock_file); close(fd); } else { hdb_lock_buffer[n] = 0; pid = atoi(hdb_lock_buffer); if (kill(pid, 0) == -1 && errno == ESRCH) { /* pid no longer exists - remove the lock file */ if (unlink(lock_file) == 0) { close(fd); syslog(LOG_NOTICE, "Removed stale lock on %s (pid %d)", dev, pid); continue; } else syslog(LOG_WARNING, "Couldn't remove stale lock on %s", dev); } else syslog(LOG_NOTICE, "Device %s is locked by pid %d", dev, pid); } close(fd); } else syslog(LOG_ERR, "Can't create lock file %s: %m", lock_file); free(lock_file); lock_file = NULL; return -1; } sprintf(hdb_lock_buffer, "%10d\n", getpid()); write(fd, hdb_lock_buffer, 11); close(fd); return 0; } /* * unlock - remove our lockfile */ void unlock(int sig) { if (lock_file) { unlink(lock_file); free(lock_file); lock_file = NULL; } }
*** WBR, Alex Zakirov (frank@pptus.ru, ICQ:38685959, 2:5029/5) ...UNIX _is_ user friendly. It's just selective about who it's friends are. (c) Marco Molteni --- tin/pre-1.4-19990517 ("Psychonaut") (UNIX) (FreeBSD/3.1-19990324-STABLE (i386)) * Origin: RSI Station (2:5029/5@fidonet)

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