1 | /** $Id: VBoxReplaceDll.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
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2 | /** @file
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3 | * VBoxReplaceDll - helper for replacing a dll when it's in use by the system
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2013-2019 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | */
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17 |
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18 |
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19 | /*********************************************************************************************************************************
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20 | * Header Files *
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21 | *********************************************************************************************************************************/
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22 | #define INCL_BASE
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23 | #include <os2.h>
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24 | #include <stdio.h>
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25 | #include <string.h>
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26 |
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27 |
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28 | static int usage(const char *argv0)
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29 | {
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30 | char *psz1 = strrchr(argv0, '\\');
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31 | if (psz1)
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32 | argv0 = psz1 + 1;
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33 | psz1 = strrchr(argv0, '/');
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34 | if (psz1)
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35 | argv0 = psz1 + 1;
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36 | psz1 = strrchr(argv0, ':');
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37 | if (psz1)
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38 | argv0 = psz1 + 1;
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39 |
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40 | printf("Usage: %s <dll1> [dll2 ...[dllN]]\n"
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41 | "\n"
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42 | "Tells the kernel to cache the specified DLLs in memory and close the\n"
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43 | "files on disk, allowing new DLL versions to be installed.\n"
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44 | "\n"
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45 | "Copyright (C) 2013-2016 Oracle Corporation\n",
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46 | argv0);
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47 | return 0;
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48 | }
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49 |
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50 | int main(int argc, char **argv)
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51 | {
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52 | int fOptions = 1;
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53 | int cProcessed = 0;
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54 | int i;
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55 | for (i = 1; i < argc; i++)
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56 | {
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57 | if ( fOptions
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58 | && argv[i][0] == '-')
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59 | {
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60 | if (!strcmp(argv[i], "--"))
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61 | fOptions = 0;
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62 | else if ( !strcmp(argv[i], "--help")
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63 | || !strcmp(argv[i], "-help")
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64 | || !strcmp(argv[i], "-h")
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65 | || !strcmp(argv[i], "-?") )
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66 | return usage(argv[0]);
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67 | else if ( !strcmp(argv[i], "--version")
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68 | || !strcmp(argv[i], "-V") )
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69 | {
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70 | printf("$Revision: 76553 $\n");
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71 | return 0;
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72 | }
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73 | else
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74 | {
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75 | fprintf(stderr, "syntax error: Invalid option '%s'!\n", argv[i]);
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76 | return 2;
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77 | }
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78 | }
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79 | else
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80 | {
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81 | /*
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82 | * Replace the specified DLL.
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83 | */
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84 | APIRET rc = DosReplaceModule((PCSZ)argv[i], NULL, NULL);
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85 | if (rc == NO_ERROR)
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86 | printf("info: Successfully cached '%s'.\n", argv[i]);
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87 | else
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88 | {
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89 | fprintf(stderr, "error: DosReplaceModule failed with rc=%lu on '%s'.\n", rc, argv[i]);
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90 | return 1;
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91 | }
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92 | cProcessed++;
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93 | }
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94 | }
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95 |
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96 | if (cProcessed == 0)
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97 | {
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98 | fprintf(stderr, "syntax error: No DLLs specified. (Consult --help for usage.)\n");
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99 | return 1;
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100 | }
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101 |
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102 | return 0;
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103 | }
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104 |
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