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[USETUP] Improve the inicache module.

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From the existing IniCacheLoad() function, introduce a IniCacheLoadFromMemory() function that just does the same (initialize an INI file cache and parse the INI file), but takes the input from a memory buffer. Then, rewrite the IniCacheLoad() function to just open the file given in input, and then fall back to calling IniCacheLoadFromMemory.
The IniCacheLoadFromMemory() function will be used later.

svn path=/branches/setup_improvements/; revision=74620
This commit is contained in:
Hermès Bélusca-Maïto 2017-05-21 23:48:09 +00:00
parent 38e988ace7
commit c8ea82d67b
No known key found for this signature in database
GPG key ID: 3B2539C65E7B93D0
2 changed files with 108 additions and 85 deletions
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186
base/setup/usetup/inicache.c
View file

@ -466,6 +466,101 @@ IniCacheGetKeyValue(
/* PUBLIC FUNCTIONS *********************************************************/
NTSTATUS
IniCacheLoadFromMemory(
PINICACHE *Cache,
PCHAR FileBuffer,
ULONG FileLength,
BOOLEAN String)
{
PCHAR Ptr;
PINICACHESECTION Section;
PINICACHEKEY Key;
PCHAR SectionName;
ULONG SectionNameSize;
PCHAR KeyName;
ULONG KeyNameSize;
PCHAR KeyValue;
ULONG KeyValueSize;
/* Allocate inicache header */
*Cache = (PINICACHE)RtlAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
sizeof(INICACHE));
if (*Cache == NULL)
{
DPRINT("RtlAllocateHeap() failed\n");
return STATUS_INSUFFICIENT_RESOURCES;
}
/* Parse ini file */
Section = NULL;
Ptr = FileBuffer;
while (Ptr != NULL && *Ptr != 0)
{
Ptr = IniCacheSkipWhitespace(Ptr);
if (Ptr == NULL)
continue;
if (*Ptr == '[')
{
Section = NULL;
Ptr++;
Ptr = IniCacheGetSectionName(Ptr,
&SectionName,
&SectionNameSize);
DPRINT1("[%.*s]\n", SectionNameSize, SectionName);
Section = IniCacheAddSection(*Cache,
SectionName,
SectionNameSize);
if (Section == NULL)
{
DPRINT("IniCacheAddSection() failed\n");
Ptr = IniCacheSkipToNextSection(Ptr);
continue;
}
}
else
{
if (Section == NULL)
{
Ptr = IniCacheSkipToNextSection(Ptr);
continue;
}
Ptr = IniCacheGetKeyName(Ptr,
&KeyName,
&KeyNameSize);
Ptr = IniCacheGetKeyValue(Ptr,
&KeyValue,
&KeyValueSize,
String);
DPRINT1("'%.*s' = '%.*s'\n", KeyNameSize, KeyName, KeyValueSize, KeyValue);
Key = IniCacheAddKey(Section,
KeyName,
KeyNameSize,
KeyValue,
KeyValueSize);
if (Key == NULL)
{
DPRINT("IniCacheAddKey() failed\n");
}
}
}
return STATUS_SUCCESS;
}
NTSTATUS
IniCacheLoad(
PINICACHE *Cache,
@ -480,21 +575,8 @@ IniCacheLoad(
NTSTATUS Status;
PCHAR FileBuffer;
ULONG FileLength;
PCHAR Ptr;
LARGE_INTEGER FileOffset;
PINICACHESECTION Section;
PINICACHEKEY Key;
PCHAR SectionName;
ULONG SectionNameSize;
PCHAR KeyName;
ULONG KeyNameSize;
PCHAR KeyValue;
ULONG KeyValueSize;
*Cache = NULL;
/* Open ini file */
@ -568,84 +650,18 @@ IniCacheLoad(
if (!NT_SUCCESS(Status))
{
DPRINT("NtReadFile() failed (Status %lx)\n", Status);
RtlFreeHeap(ProcessHeap, 0, FileBuffer);
return Status;
goto Quit;
}
/* Allocate inicache header */
*Cache = (PINICACHE)RtlAllocateHeap(ProcessHeap,
HEAP_ZERO_MEMORY,
sizeof(INICACHE));
if (*Cache == NULL)
Status = IniCacheLoadFromMemory(Cache, FileBuffer, FileLength, String);
if (!NT_SUCCESS(Status))
{
DPRINT("RtlAllocateHeap() failed\n");
return STATUS_INSUFFICIENT_RESOURCES;
DPRINT1("IniCacheLoadFromMemory() failed (Status %lx)\n", Status);
}
/* Parse ini file */
Section = NULL;
Ptr = FileBuffer;
while (Ptr != NULL && *Ptr != 0)
{
Ptr = IniCacheSkipWhitespace(Ptr);
if (Ptr == NULL)
continue;
if (*Ptr == '[')
{
Section = NULL;
Ptr++;
Ptr = IniCacheGetSectionName(Ptr,
&SectionName,
&SectionNameSize);
DPRINT1("[%.*s]\n", SectionNameSize, SectionName);
Section = IniCacheAddSection(*Cache,
SectionName,
SectionNameSize);
if (Section == NULL)
{
DPRINT("IniCacheAddSection() failed\n");
Ptr = IniCacheSkipToNextSection(Ptr);
continue;
}
}
else
{
if (Section == NULL)
{
Ptr = IniCacheSkipToNextSection(Ptr);
continue;
}
Ptr = IniCacheGetKeyName(Ptr,
&KeyName,
&KeyNameSize);
Ptr = IniCacheGetKeyValue(Ptr,
&KeyValue,
&KeyValueSize,
String);
DPRINT1("'%.*s' = '%.*s'\n", KeyNameSize, KeyName, KeyValueSize, KeyValue);
Key = IniCacheAddKey(Section,
KeyName,
KeyNameSize,
KeyValue,
KeyValueSize);
if (Key == NULL)
{
DPRINT("IniCacheAddKey() failed\n");
}
}
}
/* Free file buffer */
Quit:
/* Free the file buffer, and return */
RtlFreeHeap(ProcessHeap, 0, FileBuffer);
return Status;
}

7
base/setup/usetup/inicache.h
View file

@ -73,6 +73,13 @@ typedef enum
/* FUNCTIONS ****************************************************************/
NTSTATUS
IniCacheLoadFromMemory(
PINICACHE *Cache,
PCHAR FileBuffer,
ULONG FileLength,
BOOLEAN String);
NTSTATUS
IniCacheLoad(
PINICACHE *Cache,