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At the time, this was explicitly contributed under the Tiano license, even though the original code[0] is LGPLv2.1. [0]: git://git.kernel.org/pub/scm/linux/kernel/git/jejb/efitools.git Signed-off-by: Peter Jones <pjones@redhat.com>
59 lines
1.2 KiB
C
59 lines
1.2 KiB
C
// SPDX-License-Identifier: BSD-2-Clause-Patent
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/*
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* Copyright 2012 <James.Bottomley@HansenPartnership.com>
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*
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* misc shell helper functions
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*/
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#include <efi.h>
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#include <efilib.h>
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#include "shim.h"
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EFI_STATUS
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argsplit(EFI_HANDLE image, int *argc, CHAR16*** ARGV)
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{
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unsigned int i, count = 1;
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EFI_STATUS efi_status;
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EFI_LOADED_IMAGE *info;
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CHAR16 *start;
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*argc = 0;
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efi_status = gBS->HandleProtocol(image, &LoadedImageProtocol,
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(VOID **) &info);
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if (EFI_ERROR(efi_status)) {
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console_print(L"Failed to get arguments\n");
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return efi_status;
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}
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for (i = 0; i < info->LoadOptionsSize; i += 2) {
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CHAR16 *c = (CHAR16 *)(info->LoadOptions + i);
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if (*c == L' ' && *(c+1) != '\0') {
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(*argc)++;
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}
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}
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/* we counted spaces, so add one for initial */
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(*argc)++;
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*ARGV = AllocatePool(*argc * sizeof(**ARGV));
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if (!*ARGV) {
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return EFI_OUT_OF_RESOURCES;
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}
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(*ARGV)[0] = (CHAR16 *)info->LoadOptions;
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for (i = 0; i < info->LoadOptionsSize; i += 2) {
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CHAR16 *c = (CHAR16 *)(info->LoadOptions + i);
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if (*c == L' ') {
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*c = L'\0';
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if (*(c + 1) == '\0')
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/* strip trailing space */
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break;
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start = c + 1;
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(*ARGV)[count++] = start;
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}
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}
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return EFI_SUCCESS;
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}
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