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Annotation of src/usr.bin/mg/spawn.c, Revision 1.12

1.12    ! bcallah     1: /*     $OpenBSD: spawn.c,v 1.11 2006/08/01 22:16:03 jason Exp $        */
1.10      kjell       2:
                      3: /* This file is in the public domain. */
1.6       niklas      4:
1.1       deraadt     5: /*
1.3       millert     6:  * Spawn.  Actually just suspends Mg.
                      7:  * Assumes POSIX job control.
1.1       deraadt     8:  */
                      9:
1.12    ! bcallah    10: #include <sys/queue.h>
        !            11: #include <signal.h>
        !            12: #include <stdio.h>
        !            13: #include <term.h>
        !            14: #include <termios.h>
        !            15:
1.5       millert    16: #include "def.h"
1.1       deraadt    17:
                     18: /*
1.7       mickey     19:  * This causes mg to send itself a stop signal.  It assumes the parent
                     20:  * shell supports POSIX job control.  If the terminal supports an alternate
1.5       millert    21:  * screen, we will switch to it.
1.1       deraadt    22:  */
1.3       millert    23: /* ARGSUSED */
1.5       millert    24: int
1.8       cloder     25: spawncli(int f, int n)
1.1       deraadt    26: {
1.5       millert    27:        sigset_t        oset;
1.1       deraadt    28:
1.3       millert    29:        /* Very similar to what vttidy() does. */
1.1       deraadt    30:        ttcolor(CTEXT);
                     31:        ttnowindow();
1.3       millert    32:        ttmove(nrow - 1, 0);
1.1       deraadt    33:        if (epresf != FALSE) {
                     34:                tteeol();
                     35:                epresf = FALSE;
                     36:        }
1.3       millert    37:        if (ttcooked() == FALSE)
1.9       db         38:                return (FALSE);
1.5       millert    39:
                     40:        /* Exit application mode and tidy. */
                     41:        tttidy();
1.3       millert    42:        ttflush();
1.5       millert    43:        (void)sigprocmask(SIG_SETMASK, NULL, &oset);
                     44:        (void)kill(0, SIGTSTP);
                     45:        (void)sigprocmask(SIG_SETMASK, &oset, NULL);
1.3       millert    46:        ttreinit();
1.5       millert    47:
                     48:        /* Force repaint. */
                     49:        sgarbf = TRUE;
1.9       db         50:        return (ttraw());
1.1       deraadt    51: }