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Refactor image info structure to use fixed-size arrays and improve UTF-16 to UTF-8 conversion

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Natalia Portillo
2025-10-09 02:24:09 +01:00
parent fb4acfcbda
commit 5be6727ec2
4 changed files with 160 additions and 50 deletions
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90
src/create.c
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@@ -22,6 +22,9 @@
#include <stdlib.h>
#include <string.h>
#include <unicode/ucnv.h>
#include <unicode/ustring.h>
#include "aaruformat.h"
#include "enums.h"
#include "internal.h"
@@ -73,17 +76,7 @@ static void cleanup_failed_create(aaruformatContext *ctx)
ctx->readableSectorTags = NULL;
}
if(ctx->imageInfo.ApplicationVersion != NULL)
{
free(ctx->imageInfo.ApplicationVersion);
ctx->imageInfo.ApplicationVersion = NULL;
}
if(ctx->imageInfo.Version != NULL)
{
free(ctx->imageInfo.Version);
ctx->imageInfo.Version = NULL;
}
// ApplicationVersion and Version are fixed-size arrays, not pointers - no need to free
if(ctx->imageStream != NULL)
{
@@ -368,20 +361,75 @@ void *aaruf_create(const char *filepath, const uint32_t media_type, const uint32
// Initialize image info
TRACE("Initializing image info");
ctx->imageInfo.Application = ctx->header.application;
ctx->imageInfo.ApplicationVersion = (uint8_t *)malloc(32);
if(ctx->imageInfo.ApplicationVersion != NULL)
// Convert application name from UTF-16LE to UTF-8 using libicu
UErrorCode status = U_ZERO_ERROR;
int32_t app_name_utf16_len = AARU_HEADER_APP_NAME_LEN / 2; // UTF-16LE uses 2 bytes per character
UChar *app_name_utf16 = (UChar *)malloc(app_name_utf16_len * sizeof(UChar));
if(app_name_utf16 != NULL)
{
memset(ctx->imageInfo.ApplicationVersion, 0, 32);
sprintf((char *)ctx->imageInfo.ApplicationVersion, "%d.%d", ctx->header.applicationMajorVersion,
ctx->header.applicationMinorVersion);
// Convert raw UTF-16LE bytes to UChar (UTF-16, host endian)
for(int32_t j = 0; j < app_name_utf16_len; j++)
{
app_name_utf16[j] = (UChar)(ctx->header.application[j * 2] | (ctx->header.application[j * 2 + 1] << 8));
}
// Get required length for UTF-8
int32_t app_name_utf8_len = 0;
u_strToUTF8(NULL, 0, &app_name_utf8_len, app_name_utf16, app_name_utf16_len, &status);
if(U_SUCCESS(status) || status == U_BUFFER_OVERFLOW_ERROR)
{
status = U_ZERO_ERROR;
// Ensure it fits in the Application buffer (64 bytes including null terminator)
if(app_name_utf8_len < 64)
{
u_strToUTF8(ctx->imageInfo.Application, 64, NULL, app_name_utf16, app_name_utf16_len, &status);
if(U_FAILURE(status))
{
TRACE("Error converting application name to UTF-8: %d, using raw bytes", status);
// Fallback: just copy what we can
memset(ctx->imageInfo.Application, 0, 64);
memcpy(ctx->imageInfo.Application, ctx->header.application, AARU_HEADER_APP_NAME_LEN);
}
}
else
{
TRACE("Application name too long for buffer, truncating");
u_strToUTF8(ctx->imageInfo.Application, 63, NULL, app_name_utf16, app_name_utf16_len, &status);
ctx->imageInfo.Application[63] = '\0';
}
}
else
{
TRACE("Error getting UTF-8 length: %d, using raw bytes", status);
// Fallback: just copy what we can
memset(ctx->imageInfo.Application, 0, 64);
memcpy(ctx->imageInfo.Application, ctx->header.application, AARU_HEADER_APP_NAME_LEN);
}
free(app_name_utf16);
}
ctx->imageInfo.Version = (uint8_t *)malloc(32);
if(ctx->imageInfo.Version != NULL)
else
{
memset(ctx->imageInfo.Version, 0, 32);
sprintf((char *)ctx->imageInfo.Version, "%d.%d", ctx->header.imageMajorVersion, ctx->header.imageMinorVersion);
TRACE("Could not allocate memory for UTF-16 conversion, using raw bytes");
// Fallback: just copy what we can
memset(ctx->imageInfo.Application, 0, 64);
memcpy(ctx->imageInfo.Application, ctx->header.application, AARU_HEADER_APP_NAME_LEN);
}
// Set application version string directly in the fixed-size array
memset(ctx->imageInfo.ApplicationVersion, 0, 32);
sprintf(ctx->imageInfo.ApplicationVersion, "%d.%d", ctx->header.applicationMajorVersion,
ctx->header.applicationMinorVersion);
// Set image version string directly in the fixed-size array
memset(ctx->imageInfo.Version, 0, 32);
sprintf(ctx->imageInfo.Version, "%d.%d", ctx->header.imageMajorVersion, ctx->header.imageMinorVersion);
ctx->imageInfo.MediaType = ctx->header.mediaType;
ctx->imageInfo.ImageSize = 0;
ctx->imageInfo.CreationTime = ctx->header.creationTime;