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1 | /** @file\r |
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2 | Provides application point extension for "C" style main funciton\r |
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3 | \r |
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4 | Copyright (c) 2009-2010, Intel Corporation. All rights reserved.<BR>\r |
5 | This program and the accompanying materials\r |
6 | are licensed and made available under the terms and conditions of the BSD License\r |
7 | which accompanies this distribution. The full text of the license may be found at\r |
8 | http://opensource.org/licenses/bsd-license.php\r |
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9 | \r |
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10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
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12 | \r |
13 | **/\r |
14 | \r |
15 | #include <Base.h>\r |
16 | \r |
17 | #include <Protocol/SimpleFileSystem.h>\r |
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18 | #include <Protocol/LoadedImage.h>\r |
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19 | #include <Protocol/EfiShellInterface.h>\r |
20 | #include <Protocol/EfiShellParameters.h>\r |
21 | \r |
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22 | #include <Library/ShellCEntryLib.h>\r |
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23 | #include <Library/DebugLib.h>\r |
24 | \r |
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25 | /**\r |
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26 | UEFI entry point for an application that will in turn call the\r |
27 | ShellAppMain function which has parameters similar to a standard C\r |
28 | main function.\r |
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29 | \r |
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30 | An application that uses UefiShellCEntryLib must have a ShellAppMain\r |
31 | function as prototyped in Include/Library/ShellCEntryLib.h.\r |
32 | \r |
33 | @param ImageHandle The image handle of the UEFI Application.\r |
34 | @param SystemTable A pointer to the EFI System Table.\r |
35 | \r |
36 | @retval EFI_SUCCESS The application exited normally.\r |
37 | @retval Other An error occurred.\r |
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38 | \r |
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39 | **/\r |
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40 | EFI_STATUS\r |
41 | EFIAPI\r |
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42 | ShellCEntryLib (\r |
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43 | IN EFI_HANDLE ImageHandle,\r |
44 | IN EFI_SYSTEM_TABLE *SystemTable\r |
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45 | )\r |
46 | {\r |
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47 | INTN ReturnFromMain;\r |
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48 | EFI_SHELL_PARAMETERS_PROTOCOL *EfiShellParametersProtocol;\r |
49 | EFI_SHELL_INTERFACE *EfiShellInterface;\r |
50 | EFI_STATUS Status;\r |
51 | \r |
52 | ReturnFromMain = -1;\r |
53 | EfiShellParametersProtocol = NULL;\r |
54 | EfiShellInterface = NULL;\r |
55 | \r |
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56 | Status = SystemTable->BootServices->OpenProtocol(ImageHandle,\r |
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57 | &gEfiShellParametersProtocolGuid,\r |
58 | (VOID **)&EfiShellParametersProtocol,\r |
59 | ImageHandle,\r |
60 | NULL,\r |
61 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
62 | );\r |
63 | if (!EFI_ERROR(Status)) {\r |
64 | //\r |
65 | // use shell 2.0 interface\r |
66 | //\r |
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67 | ReturnFromMain = ShellAppMain (\r |
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68 | EfiShellParametersProtocol->Argc,\r |
69 | EfiShellParametersProtocol->Argv\r |
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70 | );\r |
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71 | } else {\r |
72 | //\r |
73 | // try to get shell 1.0 interface instead.\r |
74 | //\r |
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75 | Status = SystemTable->BootServices->OpenProtocol(ImageHandle,\r |
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76 | &gEfiShellInterfaceGuid,\r |
77 | (VOID **)&EfiShellInterface,\r |
78 | ImageHandle,\r |
79 | NULL,\r |
80 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
81 | );\r |
82 | if (!EFI_ERROR(Status)) {\r |
83 | //\r |
84 | // use shell 1.0 interface\r |
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85 | //\r |
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86 | ReturnFromMain = ShellAppMain (\r |
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87 | EfiShellInterface->Argc,\r |
88 | EfiShellInterface->Argv\r |
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89 | );\r |
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90 | } else {\r |
91 | ASSERT(FALSE);\r |
92 | }\r |
93 | }\r |
94 | if (ReturnFromMain == 0) {\r |
95 | return (EFI_SUCCESS);\r |
96 | } else {\r |
97 | return (EFI_UNSUPPORTED);\r |
98 | }\r |
99 | }\r |