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annotate lcdemu/main.c @ 0:e7f1035f10d4

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lcdemu: initial import from freecalypso-tools
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 14 Mar 2018 18:16:45 +0000
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children
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0
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
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Mychaela Falconia <falcon@freecalypso.org>
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2 * LCDemu main module
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Mychaela Falconia <falcon@freecalypso.org>
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3 */
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Mychaela Falconia <falcon@freecalypso.org>
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4
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5 #include <sys/types.h>
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
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6 #include <sys/errno.h>
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Mychaela Falconia <falcon@freecalypso.org>
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7 #include <stdio.h>
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Mychaela Falconia <falcon@freecalypso.org>
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8 #include <stdlib.h>
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Mychaela Falconia <falcon@freecalypso.org>
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9 #include <string.h>
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
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10 #include <strings.h>
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Mychaela Falconia <falcon@freecalypso.org>
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11 #include <X11/Xlib.h>
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
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12 #include <X11/Xresource.h>
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Mychaela Falconia <falcon@freecalypso.org>
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13 #include <X11/Xutil.h>
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
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diff changeset
14 #include "globals.h"
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Mychaela Falconia <falcon@freecalypso.org>
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15
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
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16 main(argc, argv)
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Mychaela Falconia <falcon@freecalypso.org>
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17 char **argv;
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
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18 {
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Mychaela Falconia <falcon@freecalypso.org>
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19 XrmInitialize();
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
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20 process_cmdline(argc, argv);
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Mychaela Falconia <falcon@freecalypso.org>
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21 open_display();
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Mychaela Falconia <falcon@freecalypso.org>
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22 init_image_conversion();
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Mychaela Falconia <falcon@freecalypso.org>
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23 load_resources();
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Mychaela Falconia <falcon@freecalypso.org>
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24 create_our_window();
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Mychaela Falconia <falcon@freecalypso.org>
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25 set_initial_window_title();
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Mychaela Falconia <falcon@freecalypso.org>
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26 set_initial_icon_name();
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
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27 create_mainwin_gc();
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
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28 XMapWindow(mydisplay, mainwindow);
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Mychaela Falconia <falcon@freecalypso.org>
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29 XFlush(mydisplay);
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Mychaela Falconia <falcon@freecalypso.org>
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30
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31 mainloop();
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Mychaela Falconia <falcon@freecalypso.org>
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32 /* NOTREACHED */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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33 }
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34
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35 process_cmdline(argc, argv)
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Mychaela Falconia <falcon@freecalypso.org>
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36 char **argv;
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Mychaela Falconia <falcon@freecalypso.org>
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37 {
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Mychaela Falconia <falcon@freecalypso.org>
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38 register char **ap, *opt;
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Mychaela Falconia <falcon@freecalypso.org>
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39 char *rhost, *ruser;
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Mychaela Falconia <falcon@freecalypso.org>
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40 int len;
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Mychaela Falconia <falcon@freecalypso.org>
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41
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Mychaela Falconia <falcon@freecalypso.org>
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42 if (argc < 1) {
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Mychaela Falconia <falcon@freecalypso.org>
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43 fprintf(stderr, "fc-lcdemu: invalid invokation\n");
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Mychaela Falconia <falcon@freecalypso.org>
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44 exit(1);
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
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45 }
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Mychaela Falconia <falcon@freecalypso.org>
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46 opt = rindex(argv[0], '/');
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Mychaela Falconia <falcon@freecalypso.org>
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47 if (opt)
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Mychaela Falconia <falcon@freecalypso.org>
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48 progbasename = opt + 1;
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Mychaela Falconia <falcon@freecalypso.org>
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49 else
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50 progbasename = argv[0];
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Mychaela Falconia <falcon@freecalypso.org>
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51 proginstancename = progbasename;
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Mychaela Falconia <falcon@freecalypso.org>
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52 for (ap = argv+1; *ap; ) {
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
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53 if (**ap == '-')
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Mychaela Falconia <falcon@freecalypso.org>
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54 opt = *ap++;
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
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55 else
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Mychaela Falconia <falcon@freecalypso.org>
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56 break;
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
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57 if (!strcmp(opt, "-display")) {
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
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58 if (!*ap) {
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
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59 argreq: fprintf(stderr, "%s: %s requires an argument\n",
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
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60 progbasename, opt);
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61 exit(1);
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Mychaela Falconia <falcon@freecalypso.org>
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62 }
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Mychaela Falconia <falcon@freecalypso.org>
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63 mydisplayname = *ap++;
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64 continue;
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Mychaela Falconia <falcon@freecalypso.org>
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65 }
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Mychaela Falconia <falcon@freecalypso.org>
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66 if (!strcmp(opt, "-name")) {
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
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67 if (!*ap)
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Mychaela Falconia <falcon@freecalypso.org>
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68 goto argreq;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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69 proginstancename = *ap++;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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70 continue;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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71 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
72 if (!strcmp(opt, "-geometry") || !strcmp(opt, "-geom")) {
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
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73 if (!*ap)
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74 goto argreq;
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Mychaela Falconia <falcon@freecalypso.org>
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75 XrmPutStringResource(&xrmdb_cmdline, "LCDemu.geometry",
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parents:
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76 *ap++);
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Mychaela Falconia <falcon@freecalypso.org>
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77 continue;
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Mychaela Falconia <falcon@freecalypso.org>
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78 }
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Mychaela Falconia <falcon@freecalypso.org>
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79 if (!strcmp(opt, "-iconic")) {
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
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parents:
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80 XrmPutStringResource(&xrmdb_cmdline, "LCDemu.iconic",
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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81 "on");
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82 continue;
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Mychaela Falconia <falcon@freecalypso.org>
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83 }
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parents:
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84 if (!strcmp(opt, "-title")) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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85 if (!*ap)
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86 goto argreq;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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87 XrmPutStringResource(&xrmdb_cmdline, "LCDemu.title",
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Mychaela Falconia <falcon@freecalypso.org>
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88 *ap++);
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89 continue;
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90 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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91 if (!strcmp(opt, "-borderwidth") || !strcmp(opt, "-bw")) {
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92 if (!*ap)
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93 goto argreq;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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94 XrmPutStringResource(&xrmdb_cmdline, "*borderWidth",
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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95 *ap++);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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96 continue;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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97 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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98 if (!strcmp(opt, "-bordercolor") || !strcmp(opt, "-bd")) {
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Mychaela Falconia <falcon@freecalypso.org>
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99 if (!*ap)
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100 goto argreq;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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101 XrmPutStringResource(&xrmdb_cmdline, "*borderColor",
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parents:
diff changeset
102 *ap++);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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103 continue;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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104 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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105 if (!strcmp(opt, "-xrm")) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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106 if (!*ap)
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Mychaela Falconia <falcon@freecalypso.org>
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107 goto argreq;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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108 XrmPutLineResource(&xrmdb_cmdline, *ap++);
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Mychaela Falconia <falcon@freecalypso.org>
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109 continue;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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110 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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111 fprintf(stderr, "%s: %s: unrecognized option\n", progbasename,
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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112 opt);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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113 exit(1);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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114 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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115 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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116
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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117 open_display()
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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118 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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119 if (!mydisplayname)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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120 mydisplayname = getenv("DISPLAY");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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121 if (!mydisplayname) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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122 fprintf(stderr, "%s: no X display available\n", progbasename);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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123 exit(1);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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124 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 mydisplay = XOpenDisplay(mydisplayname);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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126 if (!mydisplay) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 fprintf(stderr, "%s: unable to open display %s\n", progbasename,
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 mydisplayname);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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129 exit(1);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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130 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 }
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Mychaela Falconia <falcon@freecalypso.org>
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132
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Mychaela Falconia <falcon@freecalypso.org>
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133 mainloop()
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Mychaela Falconia <falcon@freecalypso.org>
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134 {
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Mychaela Falconia <falcon@freecalypso.org>
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135 register int i, cc;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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136 XEvent event;
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
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137 fd_set readfds;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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138 int maxfd;
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
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139 char buf[1024];
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
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140
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Mychaela Falconia <falcon@freecalypso.org>
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141 maxfd = ConnectionNumber(mydisplay) + 1;
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Mychaela Falconia <falcon@freecalypso.org>
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142 for (;;) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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143 cc = XPending(mydisplay);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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144 for (i = 0; i < cc; i++)
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Mychaela Falconia <falcon@freecalypso.org>
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145 XNextEvent(mydisplay, &event);
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Mychaela Falconia <falcon@freecalypso.org>
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146 XFlush(mydisplay);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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147 FD_ZERO(&readfds);
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Mychaela Falconia <falcon@freecalypso.org>
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148 FD_SET(0, &readfds);
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Mychaela Falconia <falcon@freecalypso.org>
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149 FD_SET(ConnectionNumber(mydisplay), &readfds);
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Mychaela Falconia <falcon@freecalypso.org>
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150 i = select(maxfd, &readfds, NULL, NULL, NULL);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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151 if (i < 0) {
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
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152 if (errno == EINTR)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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153 continue;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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154 perror("select");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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155 exit(1);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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156 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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157 if (FD_ISSET(0, &readfds)) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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158 cc = read(0, buf, sizeof buf);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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159 if (cc > 0)
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
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160 input_on_stdin(buf, cc);
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
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161 else
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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162 exit(0);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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163 XFlush(mydisplay);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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164 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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165 }
e7f1035f10d4 lcdemu: initial import from freecalypso-tools
Mychaela Falconia <falcon@freecalypso.org>
parents:
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166 }