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c044201472
A NULL pointer (not necessarily the terminating one) is a valid entry in the Argv argument vector, according to the ARC specification (Section 4.4 "Loaded-Program Conventions"). Thus, such pointer needs to be ignored when searching over the argument vector.
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/*
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* PROJECT: FreeLoader
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* LICENSE: MIT (https://spdx.org/licenses/MIT)
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* PURPOSE: Generic ARC Support Functions
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* COPYRIGHT: Copyright 2019-2024 Hermès Bélusca-Maïto <hermes.belusca-maito@reactos.org>
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*/
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/* INCLUDES ******************************************************************/
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#include <freeldr.h>
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/* FUNCTIONS *****************************************************************/
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PSTR
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GetNextArgumentValue(
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_In_ ULONG Argc,
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_In_ PCHAR Argv[],
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_Inout_opt_ PULONG LastIndex,
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_In_ PCSTR ArgumentName)
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{
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ULONG i;
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SIZE_T ArgNameLen = strlen(ArgumentName);
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for (i = (LastIndex ? *LastIndex : 0); i < Argc; ++i)
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{
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if (Argv[i] /* NULL pointer is a valid entry in Argv: skip it */ &&
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(strlen(Argv[i]) >= ArgNameLen + 1 /* Count the '=' sign */) &&
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(_strnicmp(Argv[i], ArgumentName, ArgNameLen) == 0) &&
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(Argv[i][ArgNameLen] == '='))
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{
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/* Found it, return the value */
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if (LastIndex) *LastIndex = i;
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return &Argv[i][ArgNameLen + 1];
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}
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}
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if (LastIndex) *LastIndex = (ULONG)-1;
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return NULL;
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}
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PSTR
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GetArgumentValue(
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_In_ ULONG Argc,
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_In_ PCHAR Argv[],
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_In_ PCSTR ArgumentName)
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{
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return GetNextArgumentValue(Argc, Argv, NULL, ArgumentName);
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}
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/* EOF */
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