semisc.c

功能丰富的串口通讯程序

/*
 * This file is part of the Seyon, Copyright (c) 1992-1993 by Muhammad M.
 * Saggaf. All rights reserved.
 *
 * See the file COPYING (1-COPYING) or the manual page seyon(1) for a full
 * statement of rights and permissions for this program.
 */

#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
#include <X11/Xaw/Dialog.h>

#include <signal.h>
#include <sys/types.h>
#include <sys/wait.h>

#include "seyon.h"
#include "SeDecl.h"
#include "SeSig.h"

extern int      scriptToMainPipe[];
extern pid_t    readProcPid;

void
                SendBreak(),
                terminal_refresh(),
                LocalShell(),
                ToggleCapture(),
                kill_handler(),
                DivertFile(),
                DoDivertFile(),
                ExecDivertFile(),
                RunScript(),
                DoRunScript(),
                ExecScript();

char            captureFile[REG_BUF];
Boolean         capture = False;
FILE           *cfp;

void
TopMisc(widget)
     Widget          widget;
{
  void            DialogDisplayFile(),
                  DialogEditFile(),
                  DialogRunScript();

  Widget          popup,
                  mBox,
                  uBox,
                  lBox,
                  toggle;

  ErrorIfBusy();

  XtVaSetValues(widget, XtNsensitive, False, NULL);
  popup = AddSimplePopup("misc", widget);
  XtAddCallback(popup, XtNdestroyCallback, SetSensitiveOn, widget);

  mBox = SeAddPaned("mBox", popup);
  uBox = SeAddBox("uBox", mBox);
  lBox = SeAddBox("lBox", mBox);

  SeAddButton("break", uBox, SendBreak);
  SeAddButton("refresh", uBox, terminal_refresh);
  SeAddButton("suspend", uBox, LocalShell);
  toggle = SeAddToggle("capture", uBox, ToggleCapture);
  SeAddButton("divert", uBox, DivertFile);
  AddButton("script", uBox, DialogRunScript, NULL);
  AddButton("editFile", uBox, DialogEditFile, NULL);
  AddButton("displayFile", uBox, DialogDisplayFile, NULL);

  AddButton("dismiss", lBox, DestroyShell, NULL);

  SeSetUnsetToggle(toggle, capture);

  PositionShell(popup, widget, SHELLPOS_HWFH);
  XtPopup(popup, XtGrabNone);
}

void
SendBreak(widget)
     Widget          widget;
{
  ErrorIfBusy();
  send_break();
  SeyonMessage("BREAK Sent to Remote Host");
}

void
terminal_refresh(widget)
     Widget          widget;
{
  ErrorIfBusy();
  RestartTerminal();
  SeyonMessage("Terminal Process Refreshed");
}

void
LocalShell(widget)
     Widget          widget;
{
  ErrorIfBusy();
  ShellCommand("");
  SeyonMessage("Terminal Suspended");
}

void
ToggleCapture(widget)
     Widget          widget;
{
  ErrorIfBusy();
  DoToggleCapture();

  SeSetUnsetToggle(widget, capture);
  RestartTerminal();
}

Boolean
DoToggleCapture()
{
  if (capture) {
    fclose(cfp);
    capture = False;
    SeyonMessage("Capture Turned OFF");
  }
  else {
    if ((cfp = fopen(captureFile, "a")) == NULL) {
      SeyonMessagef("Unable to Open Capture File `%s'", captureFile, "", "");
      return False;
    }
    else {
      capture = True;
      SeyonMessage("Capture Turned ON");
    }
  }
  return True;
}

/*
 * DivertFile: uploads a text file.
 */

void
DivertFile(widget)
     Widget          widget;
{
  ErrorIfBusy();
  SePopupDialogGetStringE("divert_name", widget, DoDivertFile, NULL,
			  NULL, True);
}

void
divert_action_ok(widget)
     Widget          widget;
{
  DoDivertFile(widget);
}

void
DoDivertFile(widget)
     Widget          widget;
{
  Widget          dialog = XtParent(widget);
  String          file_name;

  file_name = XawDialogGetValueString(dialog);
  DestroyShell(dialog);

  ExecDivertFile(XtParent(GetShell(widget)), file_name);
}

void
divert_handler(
#if NeedFunctionPrototypes
		int signo,
		XtPointer client_data
#endif
)
{
#if defined(SUNOS_3) || defined(Mips)
  union wait status;
#else
  int             status;
#endif

  if (wait(&status) < 0)
	{SePError("Divert wait failed"); return;}
  XoAppIgnoreSignal(app_con, SIGCHLD);

#if defined(SUNOS_3) || defined(Mips)
  switch (status.w_retcode) {
#else
  switch (WEXITSTATUS(status)) {
#endif
  case 0:
    SeyonMessage("Text Upload Successful");
    break;
  case 10:
    SeyonMessage("Text Upload Canceled");
    break;
  }

  inhibit_child = False;
  PostProcessPrep();
}

void
killdivert_handler(
#if NeedFunctionPrototypes
		    int signo
#endif
)
{
  signal(SIGTERM, SIG_IGN);

  if (readProcPid && kill(readProcPid, SIGTERM) == 0)
	while(wait((int*)0) < 0);
  exit(10);
}

void
ExecDivertFile(widget, file_name)
     Widget          widget;
     String          file_name;
{
  char            fullname[REG_BUF];
  FILE           *fp;
  int             c;

  expand_fname(file_name, fullname);
  if ((fp = fopen(fullname, "r")) == NULL) {
    SeyonMessagef("Unable to Open File `%s'", file_name, "", "");
    PopupError("errFileAccess", widget);
    return;
  }

  inhibit_child = True;
  SeyonMessagef("Uploading Text File '%s'...", file_name, "", "");

  PreProcessPrep();
  XoAppAddSignal(app_con, SIGCHLD, divert_handler, NULL);

  if ((w_child_pid = SeFork()) == 0) {
    signal(SIGTERM, killdivert_handler);

    if ((readProcPid = SeFork()) == 0)
      PortToTty();

    while ((c = getc(fp)) != EOF) {
      send_tbyte(c);
      if (c == '\r' || c == '\n') usleep(MDELAY);
    }
    fclose(fp);
	if (readProcPid && kill(readProcPid, SIGTERM) == 0)
	  while(wait((int*)0) < 0);
    exit(0);
  }
}

/*
 * run a script
 */

void
ScriptHandler(
#if NeedFunctionPrototypes
		int signo,
		XtPointer client_data
#endif
)
{
  int   TerminalRefreshParameters();

#if defined(SUNOS_3) || defined(Mips)
  union wait status;
#else
  int             status;
#endif

  if (wait(&status) < 0)
	{SePError("Script wait failed"); return;}
  XoAppRemoveSignal(XtWidgetToApplicationContext(topLevel), SIGCHLD);

#if defined(SUNOS_3) || defined(Mips)
  switch (status.w_retcode) {
#else
  switch (WEXITSTATUS(status)) {
#endif
  case 0:
    SeyonMessage("Script Completed");
    break;
  case 1:
    SeyonMessage("Script Execution Failed");
    break;
  case 10:
    SeyonMessage("Script Canceled by User");
    get_modem_attr();
    break;
  }

  inhibit_child = False;
  PostProcessPrep(); 
  TerminalRefreshParameters(); 
}

void
KillScriptHandler(
#if NeedFunctionPrototypes
		    int signo
#endif
)
{
  int    PutParameters();

  signal(SIGTERM, SIG_IGN);
  PutParameters(scriptToMainPipe);
  exit(10);
}

void
RunScript(parent, scriptName)
     Widget          parent;	/* Not used. Can be NULL */
     String          scriptName;
{
  int    PutParameters();
  int    scriptRet;

  ErrorIfBusy();

  inhibit_child = True;
  SeyonMessage(FmtString("Running Script ``%s''...", scriptName, "", ""));

  PreProcessPrep();
  XoAppAddSignal(XtWidgetToApplicationContext(topLevel), SIGCHLD, 
				 ScriptHandler, NULL);

  if ((w_child_pid = SeFork()) == 0) {
    signal(SIGTERM, KillScriptHandler);

    scriptRet = (int)do_script(scriptName);
	PutParameters(scriptToMainPipe);
	exit(scriptRet ? 0 : 1);
  }
}

void
DialogRunScript(widget)
     Widget          widget;
{
  void GetValueByPopup();

  ErrorIfBusy();
  linkflag = 0;
  GetValueByPopup(widget, "dialogScriptName", RunScript);
}

void ExecExit()
{
  s_exit();
}