C++ popen函数代码示例

void alarms_history::on_pushButtonSave_clicked()
{
    /* Check USB key */
    if (USBCheck())
    {
        if (USBmount() == false)
        {
            LOG_PRINT(error_e, "Cannot mount the usb key\n");
            QMessageBox::critical(this,tr("USB error"), tr("Cannot mount the usb key"));
            return;
        }
        
        char srcfilename [MAX_LINE] = "";
        char dstfilename [MAX_LINE] = "";
        
        /* compose the source file name ans the destination file name */
        sprintf(srcfilename, "%s/%s", ALARMS_DIR, logFileList.at(_current).toAscii().data());
        sprintf(dstfilename, "%s/%s_%s",
                usb_mnt_point,
                QDateTime::currentDateTime().toString("yy_MM_dd_hh_mm_ss").toAscii().data(),
                logFileList.at(_current).toAscii().data());
        
        /* prepare the alarm filtered file */
        
        /* open the source alarm file */
        FILE * fp = fopen(srcfilename, "r");
        if (fp == NULL)
        {
            LOG_PRINT(error_e, "Cannot open '%s'\n", srcfilename);
            QMessageBox::critical(this,tr("USB error"), tr("Cannot open the alarm file '%1'").arg(srcfilename));
            return;
        }
        /* open the dest alarm file */
        FILE * fpout = fopen(dstfilename, "w");
        if (fpout == NULL)
        {
            LOG_PRINT(error_e, "Cannot open '%s'\n", dstfilename);
            QMessageBox::critical(this,tr("USB error"), tr("Cannot write the alarm file '%1'").arg(srcfilename));
            return;
        }
        
        char line[LINE_SIZE];
        char * p;
        /* read from source and filter the level an the type of alarm and dump the dest alarm file */
        while (fgets(line, LINE_SIZE, fp) != NULL)
        {
            /* type;level;tag;event;YYYY/MM/DD,HH:mm:ss;description */
            /* type */
            p = strtok(line, ";");
            if (p == NULL)
            {
                LOG_PRINT(info_e, "Skip empty line'%s'\n", line);
                continue;
            }
            /* skip the alarms */
            if (atoi(p) == ALARM && _alarm == false)
            {
                LOG_PRINT(info_e, "Skip alarm '%s'\n", line);
                continue;
            }
            /* skip the events */
            if (atoi(p) == EVENT && _event == false)
            {
                LOG_PRINT(info_e, "Skip event '%s'\n", line);
                continue;
            }
            /* level */
            p = strtok(NULL, ";");
            if (p == NULL)
            {
                LOG_PRINT(error_e, "Malformed log file [%s]\n", line);
                return;
            }
            /* skip the level */
            if (atoi(p) < _level)
            {
                LOG_PRINT(info_e, "Skip level '%d %d'\n", atoi(p), _level);
                continue;
            }
            fprintf(fpout, "%s", line);
        }
        fclose(fp);
        fclose(fpout);
        
        /* create the signature file */
        
        /* Open the command for reading. */
        sprintf(line, "%s %s", APP_SIGN, dstfilename);
        fp = popen(line, "r");
        if (fp == NULL) {
            LOG_PRINT(error_e,"Failed to run command '%s'\n", line );
            return;
        }
        
        char sign[LINE_SIZE];
        
        /* Read the output a line at a time - output it. */
        if (fscanf(fp, "%s", sign) > 0) {
            LOG_PRINT(info_e,"SIGN: '%s'\n", sign);
        }
//.........这里部分代码省略.........

FILE *fopen_comp (char *file, char *mode, int32 *ispipe)
{
    char command[16384];
    FILE *fp;
    int32 k, isgz;
    
    k = strlen (file);
    
#if (WIN32)
    *ispipe = (k > 3) &&
	((strcmp (file+k-3, ".gz") == 0) || (strcmp (file+k-3, ".GZ") == 0));
    isgz = *ispipe;
#else
    *ispipe = 0;
    isgz = 0;
    if ((k > 2) && ((strcmp (file+k-2, ".Z") == 0) || (strcmp (file+k-2, ".z") == 0))) {
	*ispipe = 1;
    } else {
	if ((k > 3) &&
	    ((strcmp (file+k-3, ".gz") == 0) || (strcmp (file+k-3, ".GZ") == 0))) {
	    *ispipe = 1;
	    isgz = 1;
	}
    }
#endif

    if (*ispipe) {
#if (WIN32)
	if (strcmp (mode, "r") == 0) {
	    sprintf (command, "gzip.exe -d -c %s", file);
	    if ((fp = _popen (command, mode)) == NULL) {
		E_ERROR_SYSTEM("_popen (%s,%s) failed\n", command, mode);
		return NULL;
	    }
	} else {
	    E_ERROR ("fopen_comp not implemented for mode = %s\n", mode);
	    return NULL;
	}
#else
	if (strcmp (mode, "r") == 0) {
	    if (isgz)
		sprintf (command, "gunzip -c %s", file);
	    else
		sprintf (command, "zcat %s", file);
	    
	    if ((fp = popen (command, mode)) == NULL) {
		E_ERROR_SYSTEM("popen (%s,%s) failed\n", command, mode);
		return NULL;
	    }
	} else if (strcmp (mode, "w") == 0) {
	    if (isgz)
		sprintf (command, "gzip > %s", file);
	    else
		sprintf (command, "compress -c > %s", file);
	    
	    if ((fp = popen (command, mode)) == NULL) {
		E_ERROR_SYSTEM("popen (%s,%s) failed\n", command, mode);
		return NULL;
	    }
	} else {
	    E_ERROR ("fopen_comp not implemented for mode = %s\n", mode);
	    return NULL;
	}
#endif
    } else {
        fp = fopen (file, mode);
    }

    return (fp);
}

bool ExportCL(AudacityProject *project, bool stereo, wxString fName,
              bool selectionOnly, double t0, double t1, MixerSpec *mixerSpec)
{
   int rate = int(project->GetRate() + 0.5);
   wxWindow *parent = project;
   TrackList *tracks = project->GetTracks();
   
   wxString command = gPrefs->Read(wxT("/FileFormats/ExternalProgramExportCommand"), wxT("lame - '%f'"));
   command.Replace(wxT("%f"), fName);

   /* establish parameters */
   int channels = stereo ? 2 : 1;
   unsigned long totalSamples = (unsigned long)((t1 - t0) * rate + 0.5);
   unsigned long sampleBytes = totalSamples * channels * SAMPLE_SIZE(int16Sample);

   /* fill up the wav header */
   wav_header header;
   header.riffID[0] = 'R';
   header.riffID[1] = 'I';
   header.riffID[2] = 'F';
   header.riffID[3] = 'F';
   header.riffType[0] = 'W';
   header.riffType[1] = 'A';
   header.riffType[2] = 'V';
   header.riffType[3] = 'E';
   header.lenAfterRiff = sampleBytes + 32;

   header.fmtID[0]  = 'f';
   header.fmtID[1]  = 'm';
   header.fmtID[2]  = 't';
   header.fmtID[3]  = ' ';
   header.formatChunkLen = 16;
   header.formatTag      = 1;
   header.channels       = channels;
   header.sampleRate     = rate;
   header.bitsPerSample  = SAMPLE_SIZE(int16Sample) * 8;
   header.blockAlign     = header.bitsPerSample * header.channels;
   header.avgBytesPerSec = header.sampleRate * header.blockAlign;

   header.dataID[0] = 'd';
   header.dataID[1] = 'a';
   header.dataID[2] = 't';
   header.dataID[3] = 'a';
   header.dataLen   = sampleBytes;

   FILE *pipe = popen(OSFILENAME(command), "w");

   /* write the header */

   fwrite( &header, sizeof(wav_header), 1, pipe );

   sampleCount maxBlockLen = 44100 * 5;

   bool cancelling = false;

   int numWaveTracks;
   WaveTrack **waveTracks;
   tracks->GetWaveTracks(selectionOnly, &numWaveTracks, &waveTracks);
   Mixer *mixer = new Mixer(numWaveTracks, waveTracks,
                            tracks->GetTimeTrack(),
                            t0, t1,
                            channels, maxBlockLen, true,
                            rate, int16Sample, true, mixerSpec);

   GetActiveProject()->ProgressShow(_("Export"),
      selectionOnly ?
      _("Exporting the selected audio using command-line encoder") :
      _("Exporting the entire project using command-line encoder"));

   while(!cancelling) {
      sampleCount numSamples = mixer->Process(maxBlockLen);

      if (numSamples == 0)
         break;
      
      samplePtr mixed = mixer->GetBuffer();

      char *buffer = new char[numSamples * SAMPLE_SIZE(int16Sample) * channels];
      wxASSERT(buffer);

      // Byte-swapping is neccesary on big-endian machines, since
      // WAV files are little-endian
#if wxBYTE_ORDER == wxBIG_ENDIAN
      {
         short *buffer = (short*)mixed;
         for( int i = 0; i < numSamples; i++ )
            buffer[i] = wxINT16_SWAP_ON_BE(buffer[i]);
      }
#endif

      fwrite( mixed, numSamples * channels * SAMPLE_SIZE(int16Sample), 1, pipe );

      int progressvalue = int (1000 * ((mixer->MixGetCurrentTime()-t0) /
                                       (t1-t0)));
      cancelling = !GetActiveProject()->ProgressUpdate(progressvalue);

      delete[]buffer;
   }
   GetActiveProject()->ProgressHide();

//.........这里部分代码省略.........

//.........这里部分代码省略.........
			printf("OK: %s\n", strerror(errno));
		else
			printf("BUG: Did not fail.\n");
		show_prompt("mount('/', '/', 'nonexistentfs') ", 1);
		if (mount("/", "/", "nonexistentfs", 0, NULL))
			printf("OK: %s\n", strerror(errno));
		else
			printf("BUG: Did not fail.\n");
		set_profile(0, "file::mount");
	}

	mkdir("/tmp/mount/", 0755);
	mkdir("/tmp/mount_bind/", 0755);
	mkdir("/tmp/mount_move/", 0755);

	/* Test mount(). */
	{
		static char buf[4096];
		char *dev_ram_path = canonicalize_file_name("/dev/ram0");
		if (!dev_ram_path)
			dev_ram_path = canonicalize_file_name("/dev/ram");
		if (!dev_ram_path) {
			dev_ram_path = "/dev/ram0";
			mknod(dev_ram_path, S_IFBLK, MKDEV(1, 0));
		}
		memset(buf, 0, sizeof(buf));
		{
			struct stat sbuf;
			FILE *fp = NULL;
			snprintf(buf, sizeof(buf) - 1, "zcat - > %s",
				 dev_ram_path);
			if (lstat(dev_ram_path, &sbuf) == 0 &&
			    S_ISBLK(sbuf.st_mode) && MAJOR(sbuf.st_rdev) == 1)
				fp = popen(buf, "w");
			if (fp) {
				if (fwrite(compressed_ext2_image_sample, 1,
				    sizeof(compressed_ext2_image_sample), fp) !=
				    sizeof(compressed_ext2_image_sample))
					err(1, "fwrite");
				pclose(fp);
			} else
				fprintf(stderr, "Can't write to %s .\n",
					dev_ram_path);
		}
		set_profile(3, "file::mount");

		/* Test standard case */
		show_prompt("mount('none', '/tmp/mount/', 'tmpfs') for "
			    "'/tmp/mount/'", 1);
		if (mount("none", "/tmp/mount/", "tmpfs", 0, NULL) == EOF &&
		    errno == EPERM)
			printf("OK: Permission denied.\n");
		else
			printf("BUG: %s\n", strerror(errno));

		/* Test device_name with pattern */
		snprintf(buf, sizeof(buf) - 1, "mount('%s', '/tmp/mount/', "
			 "'ext2') for '%s\\*'", dev_ram_path, dev_ram_path);
		show_prompt(buf, 1);
		if (mount(dev_ram_path, "/tmp/mount/", "ext2", MS_RDONLY, NULL)
		    == EOF && errno == EPERM)
			printf("OK: Permission denied.\n");
		else
			printf("BUG: %s\n", strerror(errno));

		/* Test dir_name with pattern */

static inline int
install_filter(char * intf, char * filter_text) {
  FILE *fp;
  int status;
  char fil[40];
  char cmd[1035];
  struct sock_filter * FILTER;
  int filter_len;

  //sprintf(cmd, "tcpdump -dd -i %s %s", intf, filter_text);
  sprintf(cmd, "tcpdump -ddd -i %s %s", intf, filter_text);
  printf("cmd: %s\n", cmd);

  /* Open the command for reading. */
  fp = popen(cmd, "r");
  if (fp == NULL) {
    printf("Failed to run command\n" );
    exit;
  }


  /* Read the output a line at a time - output it. */
  fgets(fil, sizeof(fil)-1, fp);
  filter_len = atoi(fil);
  //printf("len: %d\n", filter_len);

  FILTER = (struct sock_filter *)(malloc(sizeof(struct sock_filter) * filter_len));

  //while (fgets(fil, sizeof(fil)-1, fp) != NULL) {
  int i = 0;
  for (i = 0; i < filter_len; i++) {
    struct sock_filter * filter_line = &FILTER[i];
    int n;
    char del = ' ';

    if (fgets(fil, sizeof(fil)-1, fp) == NULL) {
      printf("Error creating filter\n");
      exit(0);
    }

    //printf("%s", fil);
    n = atoi(strtok(fil, &del));
    //printf("val=%d  ", n);
    filter_line->code = (unsigned short)n;

    n = atoi(strtok(NULL, &del));
    //printf("val=%d  ", n);
    filter_line->jt = (unsigned char)n;

    n = atoi(strtok(NULL, &del));
    //printf("val=%d  ", n);
    filter_line->jf = (unsigned char)n;

    n = atoi(strtok(NULL, &del));
    //printf("val=%d  ", n);
    filter_line->k = (unsigned int)n;

    //printf("\n");
  }

  printf("created filter structure\n");

  /* close */
  pclose(fp);

  return 0;
}

/**
 * makecommonpart: make a common part for "mains.html" and "index.html"
 *
 *	@param[in]	title
 *	@param[in]	defines
 *	@param[in]	files
 *	@return	index	common part
 */
static char *
makecommonpart(const char *title, const char *defines, const char *files)
{
	FILE *ip;
	STRBUF *sb = strbuf_open(0);
	STRBUF *ib = strbuf_open(0);
	char buf[MAXFILLEN];
	const char *tips = "Go to the GLOBAL project page.";
	const char *_, *item;

	strbuf_puts(sb, title_begin);
	strbuf_puts(sb, title);
	strbuf_puts_nl(sb, title_end);
	strbuf_puts_nl(sb, poweredby_begin);
	strbuf_sprintf(sb, "Last updated %s%s\n", now(), br);
	if (Iflag) {
		snprintf(buf, sizeof(buf), "Powered by GLOBAL-%s.", get_version());
		strbuf_puts(sb, gen_href_begin_with_title_target(NULL, www, NULL, NULL, tips,"_top"));
		strbuf_puts(sb, gen_image(CURRENT, "pglobe", buf));
		strbuf_puts(sb, gen_href_end());
		strbuf_puts(sb, br);
	} else {
		strbuf_sprintf(sb, "Powered by %sGLOBAL-%s%s.%s\n",
			gen_href_begin_with_title_target(NULL, www, NULL, NULL, tips, "_top"),
			get_version(),
			gen_href_end(),
			br);
	}
	strbuf_puts_nl(sb, poweredby_end);
	strbuf_puts_nl(sb, hr);
	/*
	 * Print items according to the value of variable 'item_order'.
	 */
	for (item = item_order; *item; item++) {
		switch (*item) {
		case 'c':
			if (caution) {
				strbuf_puts_nl(sb, caution_begin);
				strbuf_sprintf(sb, "<font size='+2' color='red'>CAUTION</font>%s\n", br);
				strbuf_sprintf(sb, "This hypertext consists of %d files.\n", html_count);
				strbuf_puts_nl(sb, "Please don't download the whole hypertext using a hypertext copy tool.");
				strbuf_puts_nl(sb, "Our network cannot afford such traffic.");
				strbuf_puts_nl(sb, "Instead, you can generate the same thing in your computer using");
				strbuf_puts(sb, gen_href_begin_with_title_target(NULL, www, NULL, NULL, NULL, "_top"));
				strbuf_puts(sb, "GLOBAL source code tag system");
				strbuf_puts_nl(sb, gen_href_end());
				strbuf_puts_nl(sb, "Thank you.");
				strbuf_puts_nl(sb, caution_end);
				strbuf_sprintf(sb, "\n%s\n", hr);
			}
			break;
		case 's':
			if (fflag) {
				strbuf_puts(sb, makesearchpart(NULL));
				strbuf_puts_nl(sb, hr);
			}
			break;
		case 't':
			if (call_file || callee_file) {
				strbuf_puts(sb, header_begin);
				if (call_file) {
					strbuf_puts(sb, gen_href_begin(NULL, "call", normal_suffix, NULL));
					strbuf_puts(sb, title_call_tree);
					strbuf_puts(sb, gen_href_end());
				}
				if (call_file && callee_file)
					strbuf_puts(sb, " / ");
				if (callee_file) {
					strbuf_puts(sb, gen_href_begin(NULL, "callee", normal_suffix, NULL));
					strbuf_puts(sb, title_callee_tree);
					strbuf_puts(sb, gen_href_end());
				}
				strbuf_puts_nl(sb, header_end);
				strbuf_puts_nl(sb, hr);
			}
			break;
		case 'm':
			strbuf_sprintf(sb, "%sMAINS%s\n", header_begin, header_end);

			snprintf(buf, sizeof(buf), PQUOTE "%s --result=ctags-xid --encode-path=\" \t\" --nofilter=path %s" PQUOTE, quote_shell(global_path), main_func);
			ip = popen(buf, "r");
			if (!ip)
				die("cannot execute '%s'.", buf);
			strbuf_puts_nl(sb, gen_list_begin());
			while ((_ = strbuf_fgets(ib, ip, STRBUF_NOCRLF)) != NULL) {
				char fid[MAXFIDLEN];
				const char *ctags_x = parse_xid(_, fid, NULL);

				strbuf_puts_nl(sb, gen_list_body(SRCS, ctags_x, fid));
			}
			strbuf_puts_nl(sb, gen_list_end());
			if (pclose(ip) != 0)
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        error = 0;
        switch(message) {
          case STOP_ACQUISITION:
            sysinfo.acq = 0;
            SendMessage(client_message[SPIKE_MAIN].fd, ACQUISITION_STOPPED, 
                NULL, 0);
            break;
          case START_ACQUISITION:
            sysinfo.acq = 1;
            SendMessage(client_message[SPIKE_MAIN].fd, ACQUISITION_STARTED, 
                NULL, 0);
            break;
          case START_SAVE:
            sysinfo.diskon = 1;
            SendMessage(client_message[SPIKE_MAIN].fd, 
                SAVE_STARTED, NULL, 0);
            break;
          case STOP_SAVE:
            sysinfo.diskon = 0;
            SendMessage(client_message[SPIKE_MAIN].fd, 
                SAVE_STOPPED, NULL, 0);
            break;
          case OPEN_FILE:
            /* we can get this message in the middle of saving 
             * data if the main program has determined that the 
             * current file size is too  large, so we need to 
             * close the current file if it is open */
            if (outfile != NULL)  gzclose(outfile);
            ofm = (OpenFileMessage *) messagedata;

            /* we will have already checked to make sure that the 
             * file can be opened */
            /* make sure the file name is correctly terminated */
            strncpy(sysinfo.datafilename, ofm->filename, 
                sizeof(sysinfo.datafilename));
            sysinfo.datafilename[sizeof(sysinfo.datafilename)-1] = '\0';
            if (ofm->type != OpenFileMessage::GZip) {
              sprintf(tmpstring, "file type is not GZip, but rather was: %d; defaulting to GZip!\n", (int)ofm->type);
              StatusMessage(tmpstring, client_message);
            }
            // build string to pass to gzopen specifying open more, 
            // compression level, etc
            snprintf(tmpstring, sizeof(tmpstring), "ab%u", 
                ofm->compression_level);
            sysinfo.use_compression = ofm->compression_level ? 
              true : false;
            sysinfo.compression_level = ofm->compression_level;
            outfile = gzopen(sysinfo.datafilename, tmpstring);
            if( Z_NULL == outfile) {
              fprintf(STATUSFILE, "gzopen() failed to open file: %s with options %s\n", sysinfo.datafilename, tmpstring);
            }
            else{
              fprintf(STATUSFILE, "gzopen() opened file: %s with options %s\n", sysinfo.datafilename, tmpstring);
              sysinfo.fileopen = 1;
            }     
            snprintf(tmpstring, sizeof(tmpstring), "df %s\n", 
                sysinfo.datafilename);
            diskfree = 0;
            if ((pipe = popen(tmpstring, "r")) == NULL) {
              sprintf(tmpstring, "Error opening pipe to check disk usage");
              StatusMessage(tmpstring, client_message);
            }
            else {
              fgets(tmpstring, TMPSTRINGLEN, pipe);
              fscanf(pipe, "%s%d%d%d", tmpstring, &tmp1, &tmp2, &diskfree);
            }
            /* convert KB to MB for diskfree */
            diskfree /= 1024;
            pclose(pipe);
            SendMessage(client_message[SPIKE_MAIN].fd, FILE_OPENED,
                (char *) &diskfree, sizeof(int));
            break;
          case CLOSE_FILE:
            closefile = 1;
            break;
          case SYSTEM_INFO:
            /* we don't need any systeminfo information in this
             * module */
            break;
          case EXIT:

            saveexit(0);		        
            break;
          default:
            break;
        }
      }
      id++;
    }
    /* close the file only if no new data came in on the last iteration of the for loop */
    if (closefile && !newdata) {
      gzclose(outfile);
      outfile = NULL;
      sysinfo.fileopen = 0;
      SendMessage(client_message[SPIKE_MAIN].fd, FILE_CLOSED, NULL, 0);
      closefile = 0;
    }
  }
  return 0;
}

/**
 * Default implementation to get the default gateway by parsing the
 * output of the "netstat -rn" command.
 *
 * @param addrp		where gateway address is to be written
 *
 * @return 0 on success, -1 on failure with errno set.
 */
static G_GNUC_COLD int
parse_netstat(host_addr_t *addrp)
#ifdef HAS_POPEN
{
	FILE *f = NULL;
	char tmp[80];
	guint32 gate = 0;

	/*
	 * This implementation should be a safe default on UNIX platforms, but
	 * it is inefficient and as such can only constitute a fallback.
	 */

	if (-1 != access("/bin/netstat", X_OK)) {
		f = popen("/bin/netstat -rn", "r");
	} else if (-1 != access("/usr/bin/netstat", X_OK)) {
		f = popen("/usr/bin/netstat -rn", "r");
	}

	if (NULL == f) {
		errno = ENOENT;		/* netstat not found */
		return -1;
	}

	/*
	 * Typical netstat -rn output:
	 *
	 * Destination        Gateway            Flags .....
	 * 0.0.0.0            192.168.0.200      UG
	 * default            192.168.0.200      UG
	 *
	 * Some systems like linux display "0.0.0.0", but traditional UNIX
	 * output is "default" for the default route.
	 */

	while (fgets(tmp, sizeof tmp, f)) {
		char *p;
		guint32 ip;

		p = is_strprefix(tmp, "default");
		if (NULL == p)
			p = is_strprefix(tmp, "0.0.0.0");

		if (NULL == p || !is_ascii_space(*p))
			continue;

		ip = string_to_ip(p);
		if (ip != 0) {
			gate = ip;
			break;
		}
	}

	pclose(f);

	if (0 == gate) {
		errno = ENETUNREACH;
		return -1;
	}

	*addrp = host_addr_get_ipv4(gate);
	return 0;
}

//.........这里部分代码省略.........
			 arg_Source);
			exit(-1);
		}
		arg_Text = calloc(1,file_Stat.st_size+1);
		if (arg_Text != NULL)
		{
			if (fread(arg_Text,file_Stat.st_size,1,file_Fs) != 1)
			{
				fprintf(stderr,"%s: Could not read '%s'\n",
				 progname,arg_Source);
				exit(-1);
			}
		}
		fclose(file_Fs);
	}
	else
	{
		arg_Source = get_string_resource(dpy, XSUBLIM_ARG_PROGRAM,
		 "Executable");
		if (arg_Source != NULL)
		{
			char* exe_Command = calloc(1,strlen(arg_Source)+10);
			FILE* exe_Fs;

			if (exe_Command == NULL)
			{
				fprintf(stderr,
				 "%s: Could not allocate space for '%s'\n",
				 progname,arg_Source);
				exit(-1);
			}
			sprintf(exe_Command,"( %s ) 2>&1",arg_Source);

			exe_Fs = popen(exe_Command,"r");
			if (exe_Fs == NULL)
			{
				fprintf(stderr,"%s: Could not run '%s'\n",
				 progname,arg_Source);
				exit(-1);
			}
			arg_Text = calloc(1,XSUBLIM_PROGRAM_SIZE);
			if (arg_Text != NULL)
			{
				if (fread(arg_Text,1,XSUBLIM_PROGRAM_SIZE,
				 exe_Fs) <= 0)
				{
					fprintf(stderr,
					 "%s: Could not read output of '%s'\n",
					 progname,arg_Source);
					exit(-1);
				}
				if (
				 strstr(arg_Text,": not found") ||
				 strstr(arg_Text,": Not found") ||
				 strstr(arg_Text,": command not found") ||
				 strstr(arg_Text,": Command not found"))
				{
					fprintf(stderr,
					 "%s: Could not find '%s'\n",
					 progname,arg_Source);
					exit(-1);
				}
			}
			fclose(exe_Fs);
		}
		else

/* ---------------------------------------------------------------------------
 * writes to pipe using the command defined by Settings.SaveCommand
 * %f are replaced by the passed filename
 */
static int
WritePipe (char *Filename, bool thePcb)
{
  FILE *fp;
  int result;
  char *p;
  static DynamicStringType command;
  int used_popen = 0;

  if (EMPTY_STRING_P (Settings.SaveCommand))
    {
      fp = fopen (Filename, "w");
      if (fp == 0)
	{
	  Message ("Unable to write to file %s\n", Filename);
	  return STATUS_ERROR;
	}
    }
  else
    {
      used_popen = 1;
      /* setup commandline */
      DSClearString (&command);
      for (p = Settings.SaveCommand; *p; p++)
	{
	  /* copy character if not special or add string to command */
	  if (!(*p == '%' && *(p + 1) == 'f'))
	    DSAddCharacter (&command, *p);
	  else
	    {
	      DSAddString (&command, Filename);

	      /* skip the character */
	      p++;
	    }
	}
      DSAddCharacter (&command, '\0');
      printf ("write to pipe \"%s\"\n", command.Data);
      if ((fp = popen (command.Data, "w")) == NULL)
	{
	  PopenErrorMessage (command.Data);
	  return (STATUS_ERROR);
	}
    }
  if (thePcb)
    {
      if (PCB->is_footprint)
	{
	  WriteElementData (fp, PCB->Data);
	  result = 0;
	}
      else
	result = WritePCB (fp);
    }
  else
    result = WriteBuffer (fp);

  if (used_popen)
    return (pclose (fp) ? STATUS_ERROR : result);
  return (fclose (fp) ? STATUS_ERROR : result);
}

bool address_to_line(void* call_addr, char* buffer, size_t size_of_buffer)
{
   if(!call_addr) return false;
   char buff[1024];
   ssize_t len; 
   if(!get_self_path(buff,sizeof(buff),len)) return false;
   const char addr2line_cmd[] = "addr2line -e";
   const char postfix_cmd[] = "";
   
   // convert address to char array
   char addr[32];
   sprintf(addr,"%p",call_addr);
   size_t addr_len = strlen(addr);
   addr[addr_len] = '\0';
   
   // allocate memory for command
   char* cmd = (char*)(malloc)(sizeof(addr2line_cmd) // command length + NULL termination
                               + len // main path
                               + sizeof(postfix_cmd) // postfix length + extra space
                               + addr_len); // address length 
   
   // make command
   strcpy(cmd,addr2line_cmd);
   strcat(cmd+sizeof(addr2line_cmd)-1,buff);
   sprintf(cmd+strlen(cmd)," %s",addr);
   strcat(cmd,postfix_cmd);
   
   size_t cmd_len = strlen(cmd);
   cmd[cmd_len]='\0';
   
   // run command
   FILE* fp = popen(cmd,"r");
   if(fp)
   {
      //char buffer[1024];
      if(fgets(buffer, size_of_buffer, fp)!=NULL)
      {
         if(buffer[0] == '?')
         {
            size_t buffer_len = strlen(buffer);
            buffer[buffer_len-1] = '\0';
            pclose(fp);
            free(cmd);
            return false;
         }
      }
      else
      {
         size_t buffer_len = strlen(buffer);
         buffer[buffer_len-1] = '\0';
         pclose(fp);
         free(cmd);
         return false;
      }
   }
   
   size_t buffer_len = strlen(buffer);
   buffer[buffer_len-1] = '\0';

   pclose(fp);
   free(cmd);
   return true;
}

int
ReadNetlist (char *filename)
{
  static char *command = NULL;
  char inputline[MAX_NETLIST_LINE_LENGTH + 1];
  char temp[MAX_NETLIST_LINE_LENGTH + 1];
  FILE *fp;
  LibraryMenuType *menu = NULL;
  LibraryEntryType *entry;
  int i, j, lines, kind;
  bool continued;
  bool used_popen = false;
  int retval = 0;

  if (!filename)
    return 1;			/* nothing to do */

  Message (_("Importing PCB netlist %s\n"), filename);

  if (EMPTY_STRING_P (Settings.RatCommand))
    {
      fp = fopen (filename, "r");
      if (!fp)
	{
	  Message("Cannot open %s for reading", filename);
	  return 1;
	}
    }
  else
    {
      used_popen = true;
      free (command);
      command = EvaluateFilename (Settings.RatCommand,
				  Settings.RatPath, filename, NULL);

      /* open pipe to stdout of command */
      if (*command == '\0' || (fp = popen (command, "r")) == NULL)
	{
	  PopenErrorMessage (command);
	  return 1;
	}
    }
  lines = 0;
  /* kind = 0  is net name
   * kind = 1  is route style name
   * kind = 2  is connection
   */
  kind = 0;
  while (fgets (inputline, MAX_NETLIST_LINE_LENGTH, fp))
    {
      size_t len = strlen (inputline);
      /* check for maximum length line */
      if (len)
	{
	  if (inputline[--len] != '\n')
	    Message (_("Line length (%i) exceeded in netlist file.\n"
		       "additional characters will be ignored.\n"),
		     MAX_NETLIST_LINE_LENGTH);
	  else
	    inputline[len] = '\0';
	}
      continued = (inputline[len - 1] == '\\') ? true : false;
      if (continued)
	inputline[len - 1] = '\0';
      lines++;
      i = 0;
      while (inputline[i] != '\0')
	{
	  j = 0;
	  /* skip leading blanks */
	  while (inputline[i] != '\0' && BLANK (inputline[i]))
	    i++;
	  if (kind == 0)
	    {
	      /* add two spaces for included/unincluded */
	      temp[j++] = ' ';
	      temp[j++] = ' ';
	    }
	  while (!BLANK (inputline[i]))
	    temp[j++] = inputline[i++];
	  temp[j] = '\0';
	  while (inputline[i] != '\0' && BLANK (inputline[i]))
	    i++;
	  if (kind == 0)
	    {
	      menu = GetLibraryMenuMemory (&PCB->NetlistLib);
	      menu->Name = strdup (temp);
	      menu->flag = 1;
	      kind++;
	    }
	  else
	    {
	      if (kind == 1 && strchr (temp, '-') == NULL)
		{
		  kind++;
		  menu->Style = strdup (temp);
		}
	      else
		{
		  entry = GetLibraryEntryMemory (menu);
//.........这里部分代码省略.........

/* ---------------------------------------------------------------------------
 * Read contents of the library description file (for M4)
 * and then read in M4 libs.  Then call a fcn to read the newlib
 * footprints.
 */
int
ReadLibraryContents (void)
{
  static char *command = NULL;
  char inputline[MAX_LIBRARY_LINE_LENGTH + 1];
  FILE *resultFP = NULL;
  LibraryMenuType *menu = NULL;
  LibraryEntryType *entry;

  /* If we don't have a command to execute to find the library contents,
   * skip this. This is used by default on Windows builds (set in main.c),
   * as we can't normally run shell scripts or expect to have m4 present.
   */
  if (Settings.LibraryContentsCommand != NULL &&
      Settings.LibraryContentsCommand[0] != '\0')
    {
      /*  First load the M4 stuff.  The variable Settings.LibraryPath
       *  points to it.
       */
      free (command);
      command = EvaluateFilename (Settings.LibraryContentsCommand,
				  Settings.LibraryPath, Settings.LibraryFilename,
				  NULL);

#ifdef DEBUG
      printf("In ReadLibraryContents, about to execute command %s\n", command);
#endif

      /* This uses a pipe to execute a shell script which provides the names of
       * all M4 libs and footprints.  The results are placed in resultFP.
       */
      if (command && *command && (resultFP = popen (command, "r")) == NULL)
	{
	  PopenErrorMessage (command);
	}

      /* the M4 library contents are separated by colons;
       * template : package : name : description
       */
      while (resultFP != NULL && fgets (inputline, MAX_LIBRARY_LINE_LENGTH, resultFP))
	{
	  size_t len = strlen (inputline);

	  /* check for maximum linelength */
	  if (len)
	    {
	      len--;
	      if (inputline[len] != '\n')
		Message
		  ("linelength (%i) exceeded; following characters will be ignored\n",
		   MAX_LIBRARY_LINE_LENGTH);
	      else
		inputline[len] = '\0';
	    }

	  /* if the line defines a menu */
	  if (!strncmp (inputline, "TYPE=", 5))
	    {
	      menu = GetLibraryMenuMemory (&Library);
	      menu->Name = strdup (UNKNOWN (&inputline[5]));
	      menu->directory = strdup (Settings.LibraryFilename);
	    }
	  else
	    {
	      /* allocate a new menu entry if not already done */
	      if (!menu)
		{
		  menu = GetLibraryMenuMemory (&Library);
		  menu->Name = strdup (UNKNOWN ((char *) NULL));
		  menu->directory = strdup (Settings.LibraryFilename);
		}
	      entry = GetLibraryEntryMemory (menu);
	      entry->AllocatedMemory = strdup (inputline);

	      /* now break the line into pieces separated by colons */
	      if ((entry->Template = strtok (entry->AllocatedMemory, ":")) !=
		  NULL)
		if ((entry->Package = strtok (NULL, ":")) != NULL)
		  if ((entry->Value = strtok (NULL, ":")) != NULL)
		    entry->Description = strtok (NULL, ":");

	      /* create the list entry */
	      len = strlen (EMPTY (entry->Value)) +
		strlen (EMPTY (entry->Description)) + 4;
	      entry->ListEntry = (char *)calloc (len, sizeof (char));
	      sprintf (entry->ListEntry,
		       "%s, %s", EMPTY (entry->Value),
		       EMPTY (entry->Description));
	    }
	}
      if (resultFP != NULL)
	pclose (resultFP);
    }

  /* Now after reading in the M4 libs, call a function to
//.........这里部分代码省略.........

//.........这里部分代码省略.........
		if (po->pager && fout == stdout && isatty(fileno(stdin)) &&
			isatty(fileno(stdout)))
		{
			/*
			 * If we think there'll be more than one screen of output, try to
			 * pipe to the pager program.
			 */
#ifdef TIOCGWINSZ
			if (ioctl(fileno(stdout), TIOCGWINSZ, &screen_size) == -1 ||
				screen_size.ws_col == 0 ||
				screen_size.ws_row == 0)
			{
				screen_size.ws_row = 24;
				screen_size.ws_col = 80;
			}
#else
			screen_size.ws_row = 24;
			screen_size.ws_col = 80;
#endif
			pagerenv = getenv("PAGER");
			if (pagerenv != NULL &&
				pagerenv[0] != '\0' &&
				!po->html3 &&
				((po->expanded &&
				  nTups * (nFields + 1) >= screen_size.ws_row) ||
				 (!po->expanded &&
				  nTups * (total_line_length / screen_size.ws_col + 1) *
				  (1 + (po->standard != 0)) >= screen_size.ws_row -
				  (po->header != 0) *
				  (total_line_length / screen_size.ws_col + 1) * 2
				  - (po->header != 0) * 2		/* row count and newline */
				  )))
			{
				fout = popen(pagerenv, "w");
				if (fout)
				{
					usePipe = 1;
#ifndef WIN32
#ifdef ENABLE_THREAD_SAFETY
					if (pq_block_sigpipe(&osigset, &sigpipe_pending) == 0)
						sigpipe_masked = true;
#else
					oldsigpipehandler = pqsignal(SIGPIPE, SIG_IGN);
#endif   /* ENABLE_THREAD_SAFETY */
#endif   /* WIN32 */
				}
				else
					fout = stdout;
			}
		}

		if (!po->expanded && (po->align || po->html3))
		{
			if (!(fields = (char **) calloc(nFields * (nTups + 1), sizeof(char *))))
			{
				fprintf(stderr, libpq_gettext("out of memory\n"));
				abort();
			}
		}
		else if (po->header && !po->html3)
		{
			if (po->expanded)
			{
				if (po->align)
					fprintf(fout, libpq_gettext("%-*s%s Value\n"),
							fieldMaxLen - fs_len, libpq_gettext("Field"), po->fieldSep);

int main(int argc, char **argv)
{
  pthread_t timer_thread;
  pthread_t comms_thread;
  pthread_attr_t pthread_custom_attr;
  char buf[1024];
  FILE *f;
  int c;

  extern byte action;
  extern byte action_value;
  extern int act_after;

  if (argc == 1) {
    action = ACT_NONE;
    exitAfter = 10;
  } else if (argc == 5) {
    act_after = atoi(argv[1]);
    action = atoi(argv[2]);
    action_value = atoi(argv[3]);
    exitAfter = atoi(argv[4]);
  } else {
    fprintf(stderr, "Usage: ./master action_after action action_val exit\n");
    exit(1);
  }

  switch(fork()) {
  case -1:
    perror("Fork failed");
    exit(1);
  case 0:
    f = popen("./slave", "r");
    while(fgets(buf, 1024, f)) {
      printf(buf);
      fflush(stdout);
    }
    pclose(f);
    exit(1);
  }

  printf("Starting master\n");
  fflush(stdout);

  alarm(10);

  address = 0;

  rfd = open("0", O_RDONLY);
  wfd = open("1", O_WRONLY | O_NONBLOCK);

  pthread_attr_init(&pthread_custom_attr);
  
  pthread_create(&timer_thread, &pthread_custom_attr, timer, NULL);
  pthread_create(&comms_thread, &pthread_custom_attr, comms, NULL);

  comms_main();

  pthread_join(timer_thread, NULL);
  pthread_join(comms_thread, NULL);
  
  return 0;
}