/* Spawn: various DOS access commands for MicroEMACS */ #include #include "estruct.h" #include "edef.h" #if AMIGA #define NEW 1006L #endif #if VMS #define EFN 0 /* Event flag. */ #include /* Random headers. */ #include #include #include extern int oldmode[3]; /* In "termio.c" */ extern int newmode[3]; /* In "termio.c" */ extern short iochan; /* In "termio.c" */ #endif #if V7 | USG | BSD #include extern int vttidy(); #endif #if MSDOS & (MSC | TURBO) #include #endif /* * Create a subjob with a copy of the command intrepreter in it. When the * command interpreter exits, mark the screen as garbage so that you do a full * repaint. Bound to "^X C". The message at the start in VMS puts out a newline. * Under some (unknown) condition, you don't get one free when DCL starts up. */ spawncli(f, n) { #if AMIGA long newcli; #endif #if V7 | USG | BSD register char *cp; char *getenv(); #endif /* don't allow this command if restricted */ if (restflag) return(resterr()); #if AMIGA mlwrite("[Starting new CLI]"); sgarbf = TRUE; Execute("NEWCLI \"CON:0/0/640/200/MicroEMACS Subprocess\"", 0L, 0L); return(TRUE); #endif #if VMS movecursor(term.t_nrow, 0); /* In last line. */ mlputs("[Starting DCL]\r\n"); TTflush(); /* Ignore "ttcol". */ sgarbf = TRUE; return (sys(NULL)); /* NULL => DCL. */ #endif #if CPM mlwrite("Not in CP/M-86"); #endif #if MSDOS & (AZTEC | TURBO) movecursor(term.t_nrow, 0); /* Seek to last line. */ TTflush(); TTkclose(); shellprog(""); TTkopen(); sgarbf = TRUE; return(TRUE); #endif #if MSDOS & MSC movecursor(term.t_nrow, 0); /* Seek to last line. */ TTflush(); TTkclose(); spawnlp(0,"G:COMMAND.COM","cls",NULL) ; TTkopen(); sgarbf = TRUE; return(TRUE); #endif #if ST520 & MWC mlerase(); /* clear the message line */ TTflush(); TTkclose(); system("msh.prg"); TTkopen(); sgarbf = TRUE; return(TRUE); #endif #if MSDOS & LATTICE movecursor(term.t_nrow, 0); /* Seek to last line. */ TTflush(); TTkclose(); sys("\\command.com", ""); /* Run CLI. */ TTkopen(); sgarbf = TRUE; return(TRUE); #endif #if V7 | USG | BSD movecursor(term.t_nrow, 0); /* Seek to last line. */ TTflush(); TTclose(); /* stty to old settings */ if ((cp = getenv("SHELL")) != NULL && *cp != '\0') system(cp); else #if BSD system("exec /bin/csh"); #else system("exec /bin/sh"); #endif sgarbf = TRUE; sleep(2); TTopen(); return(TRUE); #endif } #if BSD bktoshell() /* suspend MicroEMACS and wait to wake up */ { int pid; vttidy(); pid = getpid(); kill(pid,SIGTSTP); } rtfrmshell() { TTopen(); curwp->w_flag = WFHARD; sgarbf = TRUE; } #endif /* * Run a one-liner in a subjob. When the command returns, wait for a single * character to be typed, then mark the screen as garbage so a full repaint is * done. Bound to "C-X !". */ spawn(f, n) { register int s; char line[NLINE]; #if AMIGA long newcli; #endif /* don't allow this command if restricted */ if (restflag) return(resterr()); #if AMIGA if ((s=mlreply("!", line, NLINE)) != TRUE) return (s); newcli = Open("CON:0/0/640/200/MicroEMACS Subprocess", NEW); Execute(line, 0L, newcli); Close(newcli); tgetc(); /* Pause. */ sgarbf = TRUE; return(TRUE); #endif #if VMS if ((s=mlreply("!", line, NLINE)) != TRUE) return (s); TTputc('\n'); /* Already have '\r' */ TTflush(); s = sys(line); /* Run the command. */ mlputs("\r\n\n[End]"); /* Pause. */ TTflush(); tgetc(); sgarbf = TRUE; return (s); #endif #if CPM mlwrite("Not in CP/M-86"); return (FALSE); #endif #if MSDOS if ((s=mlreply("!", line, NLINE)) != TRUE) return(s); movecursor(term.t_nrow - 1, 0); TTkclose(); #if MSC system(line); #else shellprog(line); #endif TTkopen(); /* if we are interactive, pause here */ if (clexec == FALSE) { mlputs("\r\n\n[End]"); tgetc(); } sgarbf = TRUE; return (TRUE); #endif #if ST520 & MWC if ((s=mlreply("!", line, NLINE)) != TRUE) return(s); mlerase(); TTkclose(); system(line); TTkopen(); /* if we are interactive, pause here */ if (clexec == FALSE) { mlputs("\r\n\n[End]"); tgetc(); } sgarbf = TRUE; return (TRUE); #endif #if V7 | USG | BSD if ((s=mlreply("!", line, NLINE)) != TRUE) return (s); TTputc('\n'); /* Already have '\r' */ TTflush(); TTclose(); /* stty to old modes */ system(line); TTopen(); mlputs("[End]"); /* Pause. */ TTflush(); while ((s = tgetc()) != '\r' && s != ' ') ; sgarbf = TRUE; return (TRUE); #endif } /* * Run an external program with arguments. When it returns, wait for a single * character to be typed, then mark the screen as garbage so a full repaint is * done. Bound to "C-X $". */ execprg(f, n) { register int s; char line[NLINE]; #if AMIGA long newcli; #endif /* don't allow this command if restricted */ if (restflag) return(resterr()); #if AMIGA if ((s=mlreply("!", line, NLINE)) != TRUE) return (s); newcli = Open("CON:0/0/640/200/MicroEMACS Subprocess", NEW); Execute(line, 0L, newcli); Close(newcli); tgetc(); /* Pause. */ sgarbf = TRUE; return(TRUE); #endif #if VMS if ((s=mlreply("!", line, NLINE)) != TRUE) return (s); TTputc('\n'); /* Already have '\r' */ TTflush(); s = sys(line); /* Run the command. */ mlputs("\r\n\n[End]"); /* Pause. */ TTflush(); tgetc(); sgarbf = TRUE; return (s); #endif #if CPM mlwrite("Not in CP/M-86"); return (FALSE); #endif #if MSDOS if ((s=mlreply("$", line, NLINE)) != TRUE) return(s); movecursor(term.t_nrow - 1, 0); TTkclose(); #if MSC system(line); #else execprog(line); #endif TTkopen(); /* if we are interactive, pause here */ if (clexec == FALSE) { mlputs("\r\n\n[End]"); tgetc(); } sgarbf = TRUE; return (TRUE); #endif #if ST520 & MWC if ((s=mlreply("!", line, NLINE)) != TRUE) return(s); mlerase(); TTkclose(); system(line); TTkopen(); /* if we are interactive, pause here */ if (clexec == FALSE) { mlputs("\r\n\n[End]"); tgetc(); } sgarbf = TRUE; return (TRUE); #endif #if V7 | USG | BSD if ((s=mlreply("!", line, NLINE)) != TRUE) return (s); TTputc('\n'); /* Already have '\r' */ TTflush(); TTclose(); /* stty to old modes */ system(line); TTopen(); mlputs("[End]"); /* Pause. */ TTflush(); while ((s = tgetc()) != '\r' && s != ' ') ; sgarbf = TRUE; return (TRUE); #endif } /* * Pipe a one line command into a window * Bound to ^X @ */ pipecmd(f, n) { register int s; /* return status from CLI */ register WINDOW *wp; /* pointer to new window */ register BUFFER *bp; /* pointer to buffer to zot */ char line[NLINE]; /* command line send to shell */ static char bname[] = "command"; #if AMIGA static char filnam[] = "ram:command"; long newcli; #else static char filnam[NSTRING] = "command"; #endif #if MSDOS | (ST520 & MWC) char *tmp; char *getenv(); FILE *fp; FILE *fopen(); #endif /* don't allow this command if restricted */ if (restflag) return(resterr()); #if MSDOS if ((tmp = getenv("TMP")) == NULL) strcpy(filnam, "command"); else { strcpy(filnam, tmp); strcat(filnam,"\\command"); } #endif #if VMS mlwrite("Not availible under VMS"); return(FALSE); #endif #if CPM mlwrite("Not availible under CP/M-86"); return(FALSE); #endif /* get the command to pipe in */ if ((s=mlreply("@", line, NLINE)) != TRUE) return(s); /* get rid of the command output buffer if it exists */ if ((bp=bfind(bname, FALSE, 0)) != FALSE) { /* try to make sure we are off screen */ wp = wheadp; while (wp != NULL) { if (wp->w_bufp == bp) { onlywind(FALSE, 1); break; } wp = wp->w_wndp; } if (zotbuf(bp) != TRUE) return(FALSE); } #if AMIGA newcli = Open("CON:0/0/640/200/MicroEMACS Subprocess", NEW); strcat(line, " >"); strcat(line, filnam); Execute(line, 0L, newcli); s = TRUE; Close(newcli); sgarbf = TRUE; #endif #if MSDOS | (ST520 & MWC) strcat(line," >>"); strcat(line,filnam); movecursor(term.t_nrow - 1, 0); TTkclose(); #if MSDOS & ~MSC shellprog(line); #elif MSC & MSDOS system(line); #else system(line); #endif TTkopen(); sgarbf = TRUE; if ((fp = fopen(filnam, "r")) == NULL) { s = FALSE; } else { fclose(fp); s = TRUE; } #endif #if V7 | USG | BSD TTputc('\n'); /* Already have '\r' */ TTflush(); TTclose(); /* stty to old modes */ strcat(line,">"); strcat(line,filnam); system(line); TTopen(); TTflush(); sgarbf = TRUE; s = TRUE; #endif if (s != TRUE) return(s); /* split the current window to make room for the command output */ if (splitwind(FALSE, 1) == FALSE) return(FALSE); /* and read the stuff in */ if (getfile(filnam, FALSE) == FALSE) return(FALSE); /* make this window in VIEW mode, update all mode lines */ curwp->w_bufp->b_mode |= MDVIEW; wp = wheadp; while (wp != NULL) { wp->w_flag |= WFMODE; wp = wp->w_wndp; } /* and get rid of the temporary file */ unlink(filnam); return(TRUE); } /* * filter a buffer through an external DOS program * Bound to ^X # */ filter(f, n) { register int s; /* return status from CLI */ register BUFFER *bp; /* pointer to buffer to zot */ char line[NLINE]; /* command line send to shell */ char tmpnam[NFILEN]; /* place to store real file name */ static char bname1[] = "fltinp"; #if AMIGA static char filnam1[] = "ram:fltinp"; static char filnam2[] = "ram:fltout"; long newcli; #else static char filnam1[] = "fltinp"; static char filnam2[] = "fltout"; #endif /* don't allow this command if restricted */ if (restflag) return(resterr()); if (curbp->b_mode&MDVIEW) /* don't allow this command if */ return(rdonly()); /* we are in read only mode */ #if VMS mlwrite("Not availible under VMS"); return(FALSE); #endif #if CPM mlwrite("Not availible under CP/M-86"); return(FALSE); #endif /* get the filter name and its args */ if ((s=mlreply("#", line, NLINE)) != TRUE) return(s); /* setup the proper file names */ bp = curbp; strcpy(tmpnam, bp->b_fname); /* save the original name */ strcpy(bp->b_fname, bname1); /* set it to our new one */ /* write it out, checking for errors */ if (writeout(filnam1) != TRUE) { mlwrite("[Cannot write filter file]"); strcpy(bp->b_fname, tmpnam); return(FALSE); } #if AMIGA newcli = Open("CON:0/0/640/200/MicroEMACS Subprocess", NEW); strcat(line, " ram:fltout"); Execute(line,0L,newcli); s = TRUE; Close(newcli); sgarbf = TRUE; #endif #if MSDOS | (ST520 & MWC) strcat(line," fltout"); movecursor(term.t_nrow - 1, 0); TTkclose(); #if MSDOS & ~MSC shellprog(line); #elif MSC & MSDOS system(line); #else system(line); #endif TTkopen(); sgarbf = TRUE; s = TRUE; #endif #if V7 | USG | BSD TTputc('\n'); /* Already have '\r' */ TTflush(); TTclose(); /* stty to old modes */ strcat(line," fltout"); system(line); TTopen(); TTflush(); sgarbf = TRUE; s = TRUE; #endif /* on failure, escape gracefully */ if (s != TRUE || (readin(filnam2,FALSE) == FALSE)) { mlwrite("[Execution failed]"); strcpy(bp->b_fname, tmpnam); unlink(filnam1); unlink(filnam2); return(s); } /* reset file name */ strcpy(bp->b_fname, tmpnam); /* restore name */ bp->b_flag |= BFCHG; /* flag it as changed */ /* and get rid of the temporary file */ unlink(filnam1); unlink(filnam2); return(TRUE); } #if VMS /* * Run a command. The "cmd" is a pointer to a command string, or NULL if you * want to run a copy of DCL in the subjob (this is how the standard routine * LIB$SPAWN works. You have to do wierd stuff with the terminal on the way in * and the way out, because DCL does not want the channel to be in raw mode. */ sys(cmd) register char *cmd; { struct dsc$descriptor cdsc; struct dsc$descriptor *cdscp; long status; long substatus; long iosb[2]; status = SYS$QIOW(EFN, iochan, IO$_SETMODE, iosb, 0, 0, oldmode, sizeof(oldmode), 0, 0, 0, 0); if (status!=SS$_NORMAL || (iosb[0]&0xFFFF)!=SS$_NORMAL) return (FALSE); cdscp = NULL; /* Assume DCL. */ if (cmd != NULL) { /* Build descriptor. */ cdsc.dsc$a_pointer = cmd; cdsc.dsc$w_length = strlen(cmd); cdsc.dsc$b_dtype = DSC$K_DTYPE_T; cdsc.dsc$b_class = DSC$K_CLASS_S; cdscp = &cdsc; } status = LIB$SPAWN(cdscp, 0, 0, 0, 0, 0, &substatus, 0, 0, 0); if (status != SS$_NORMAL) substatus = status; status = SYS$QIOW(EFN, iochan, IO$_SETMODE, iosb, 0, 0, newmode, sizeof(newmode), 0, 0, 0, 0); if (status!=SS$_NORMAL || (iosb[0]&0xFFFF)!=SS$_NORMAL) return (FALSE); if ((substatus&STS$M_SUCCESS) == 0) /* Command failed. */ return (FALSE); return (TRUE); } #endif #if ~AZTEC & ~MSC & ~TURBO & MSDOS /* * This routine, once again by Bob McNamara, is a C translation of the "system" * routine in the MWC-86 run time library. It differs from the "system" routine * in that it does not unconditionally append the string ".exe" to the end of * the command name. We needed to do this because we want to be able to spawn * off "command.com". We really do not understand what it does, but if you don't * do it exactly "malloc" starts doing very very strange things. */ sys(cmd, tail) char *cmd; char *tail; { #if MWC register unsigned n; extern char *__end; n = __end + 15; n >>= 4; n = ((n + dsreg() + 16) & 0xFFF0) + 16; return(execall(cmd, tail, n)); #endif #if LATTICE return(forklp(cmd, tail, (char *)NULL)); #endif } #endif #if MSDOS & LATTICE /* System: a modified version of lattice's system() function that detects the proper switchar and uses it written by Dana Hogget */ system(cmd) char *cmd; /* Incoming command line to execute */ { char *getenv(); static char *swchar = "/C"; /* Execution switch */ union REGS inregs; /* parameters for dos call */ union REGS outregs; /* Return results from dos call */ char *shell; /* Name of system command processor */ char *p; /* Temporary pointer */ int ferr; /* Error condition if any */ /* get name of system shell */ if ((shell = getenv("COMSPEC")) == NULL) { return (-1); /* No shell located */ } p = cmd; while (isspace(*p)) { /* find out if null command */ p++; } /** If the command line is not empty, bring up the shell **/ /** and execute the command. Otherwise, bring up the **/ /** shell in interactive mode. **/ if (p && *p) { /** detect current switch character and us it **/ inregs.h.ah = 0x37; /* get setting data */ inregs.h.al = 0x00; /* get switch character */ intdos(&inregs, &outregs); *swchar = outregs.h.dl; ferr = forkl(shell, "command", swchar, cmd, (char *)NULL); } else { ferr = forkl(shell, "command", (char *)NULL); } return (ferr ? ferr : wait()); } #endif #if MSDOS & LATTICE extern int _oserr; #endif #if MSDOS & AZTEC extern int errno; #endif #if MSDOS & (TURBO | LATTICE | AZTEC) /* SHELLPROG: Execute a command in a subshell */ shellprog(cmd) char *cmd; /* Incoming command line to execute */ { char *shell; /* Name of system command processor */ char *p; /* Temporary pointer */ char swchar; /* switch character to use */ union REGS regs; /* parameters for dos call */ char comline[NSTRING]; /* constructed command line */ char *getenv(); /* detect current switch character and set us up to use it */ regs.h.ah = 0x37; /* get setting data */ regs.h.al = 0x00; /* get switch character */ intdos(®s, ®s); swchar = (char)regs.h.dl; /* get name of system shell */ if ((shell = getenv("COMSPEC")) == NULL) { return(FALSE); /* No shell located */ } /* trim leading whitespace off the command */ while (*cmd == ' ' || *cmd == '\t') /* find out if null command */ cmd++; /** If the command line is not empty, bring up the shell **/ /** and execute the command. Otherwise, bring up the **/ /** shell in interactive mode. **/ if (*cmd) { strcpy(comline, shell); strcat(comline, " "); comline[strlen(comline) + 1] = 0; comline[strlen(comline)] = swchar; strcat(comline, "c "); strcat(comline, cmd); return(execprog(comline)); } else return(execprog(shell)); } /* EXECPROG: A function to execute a named program with arguments */ execprog(cmd) char *cmd; /* Incoming command line to execute */ { char *sp; /* temporary string pointer */ char f1[38]; /* FCB1 area (not initialized */ char f2[38]; /* FCB2 area (not initialized */ char prog[NSTRING]; /* program filespec */ char tail[NSTRING]; /* command tail with length byte */ union REGS regs; /* parameters for dos call */ struct SREGS segreg; /* segment registers for dis call */ struct pblock { /* EXEC parameter block */ short envptr; /* 2 byte pointer to environment string */ char *cline; /* 4 byte pointer to command line */ char *fcb1; /* 4 byte pointer to FCB at PSP+5Ch */ char *fcb2; /* 4 byte pointer to FCB at PSP+6Ch */ } pblock; char *flook(); /* parse the command name from the command line */ sp = prog; while (*cmd && (*cmd != ' ') && (*cmd != '\t')) *sp++ = *cmd++; *sp = 0; /* and parse out the command tail */ while (*cmd && ((*cmd == ' ') || (*cmd == '\t'))) ++cmd; *tail = (char)(strlen(cmd)); /* record the byte length */ strcpy(&tail[1], cmd); strcat(&tail[1], "\r"); /* look up the program on the path trying various extentions */ if ((sp = flook(prog, TRUE)) == NULL) if ((sp = flook(strcat(prog, ".exe"), TRUE)) == NULL) { strcpy(&prog[strlen(prog)-4], ".com"); if ((sp = flook(prog, TRUE)) == NULL) return(FALSE); } strcpy(prog, sp); /* get a pointer to this PSPs environment segment number */ segread(&segreg); /* set up the EXEC parameter block */ pblock.envptr = 0; /* make the child inherit the parents env */ pblock.fcb1 = f1; /* point to a blank FCB */ pblock.fcb2 = f2; /* point to a blank FCB */ pblock.cline = tail; /* parameter line pointer */ /* and make the call */ regs.h.ah = 0x4b; /* EXEC Load or Execute a Program */ regs.h.al = 0x00; /* load end execute function subcode */ #if AZTEC regs.x.ds = ((unsigned long)(prog) >> 16); /* program name ptr */ #else segreg.ds = ((unsigned long)(prog) >> 16); /* program name ptr */ #endif regs.x.dx = (unsigned int)(prog); #if AZTEC regs.x.es = regs.x.ds; /*regs.x.es = ((unsigned long)(&pblock) >> 16); * set up param block ptr */ #else segreg.es = ((unsigned long)(&pblock) >> 16); /* set up param block ptr */ #endif regs.x.bx = (unsigned int)(&pblock); #if LATTICE #define CFLAG 1 if ((intdosx(®s, ®s, &segreg) & CFLAG) == 0) { regs.h.ah = 0x4d; /* get child process return code */ intdos(®s, ®s); /* go do it */ rval = regs.x.ax; /* save child's return code */ } else rval = -_oserr; /* failed child call */ #endif #if AZTEC #define CFLAG 1 if ((sysint(0x21, ®s, ®s) & CFLAG) == 0) { regs.h.ah = 0x4d; /* get child process return code */ sysint(0x21, ®s, ®s); /* go do it */ rval = regs.x.ax; /* save child's return code */ } else rval = -errno; /* failed child call */ #endif #if TURBO intdosx(®s, ®s, &segreg); if (regs.x.cflag == 0) { regs.h.ah = 0x4d; /* get child process return code */ intdos(®s, ®s); /* go do it */ rval = regs.x.ax; /* save child's return code */ } else rval = -_doserrno; /* failed child call */ #endif return((rval < 0) ? FALSE : TRUE); } #endif