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Annotation of researchv10no/ncurses/screen/reset_prog.c, revision 1.1.1.1

1.1       root        1: /*     @(#) reset_prog.c: 1.1 10/15/83 (1.36   3/18/83)        */
                      2: #include "curses.ext"
                      3: #include "../local/uparm.h"
                      4: 
                      5: extern struct term *cur_term;
                      6: 
                      7: #ifdef DIOCSETT
                      8: /*
                      9:  * Disable CB/UNIX virtual terminals.
                     10:  * This really should be a field in the cur_term structure, but
                     11:  * I didn't do it that way because I'm trying to make ex fit.
                     12:  * If you're using virtual terminals on a 32 bit machine it
                     13:  * probably makes sense to change it.
                     14:  */
                     15: static struct termcb new, old;
                     16: #endif
                     17: #ifdef LTILDE
                     18: static int newlmode, oldlmode;
                     19: #endif
                     20: 
                     21: /*
                     22:  * Getting the baud rate is different on the two systems.
                     23:  * In either case, a baud rate of 0 hangs up the phone.
                     24:  * Since things are often initialized to 0, getting the phone
                     25:  * hung up on you is a common result of a bug in your program.
                     26:  * This is not very friendly, so if the baud rate is 0, we
                     27:  * assume we're doing a reset_xx_mode with no def_xx_mode, and
                     28:  * just don't do anything.
                     29:  */
                     30: #ifdef USG
                     31: #define BR(x) (cur_term->x.c_cflag&CBAUD)
                     32: #else
                     33: #define BR(x) (cur_term->x.sg_ispeed)
                     34: #endif
                     35: 
                     36: reset_prog_mode()
                     37: {
                     38:        if (BR(Nttyb))
                     39:                ioctl(cur_term -> Filedes,
                     40: #ifdef USG
                     41:                        TCSETAW,
                     42: #else
                     43:                        TIOCSETN,
                     44: #endif
                     45:                        &(cur_term->Nttyb));
                     46: # ifdef LTILDE
                     47:        ioctl(cur_term -> Filedes, TIOCLGET, &oldlmode);
                     48:        newlmode = oldlmode & ~LTILDE;
                     49:        if (newlmode != oldlmode)
                     50:                ioctl(cur_term -> Filedes, TIOCLSET, &newlmode);
                     51: # endif
                     52: #ifdef DIOCSETT
                     53:        if (old.st_termt == 0)
                     54:                ioctl(2, DIOCGETT, &old);
                     55:        new = old;
                     56:        new.st_termt = 0;
                     57:        new.st_flgs |= TM_SET;
                     58:        ioctl(2, DIOCSETT, &new);
                     59: #endif
                     60: }

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