int plf_open_file(const char* filename)
{
int fileIdx;
s_plf_file_entry* fileEntry;
if (filename == 0)
return PLF_E_PARAM;
/* Reserve a new file */
fileIdx = plf_int_new_file();
if (fileIdx < 0)
return fileIdx;
fileEntry = &plf_files[fileIdx];
/* Open the given filename */
fileEntry->fildes = open(filename, O_RDONLY | O_BINARY);
if (fileEntry->fildes < 0)
{
plf_close(fileIdx);
return PLF_E_IO;
}
fileEntry->flags |= PLF_FILE_FLAG_READ;
return plf_int_open_file(fileIdx);
}
static int plf_int_open_file(int fileIdx)
{
int retval;
s_plf_file_entry* fileEntry;
int bytes_read;
PLF_VERIFY_IDX(fileIdx);
fileEntry = &plf_files[fileIdx];
bytes_read = plf_int_read(fileIdx, (void*) (&fileEntry->hdr), 0,
sizeof(s_plf_file));
if (bytes_read != sizeof(s_plf_file))
{
plf_close(fileIdx);
return PLF_E_IO;
}
/* Fill unused bytes */
if (fileEntry->hdr.dwHdrSize < sizeof(s_plf_file))
{
u8* p_start = ((u8*) (&fileEntry->hdr)) + fileEntry->hdr.dwHdrSize;
u32 fill_size = sizeof(s_plf_file) - fileEntry->hdr.dwHdrSize;
memset(p_start, 0, fill_size);
}
retval = plf_int_read_entries(fileIdx);
if (retval < 0)
return retval;
return fileIdx;
}
int plf_create_file(const char* filename)
{
int fileIdx;
s_plf_file_entry* fileEntry;
/* Reserve a new file */
fileIdx = plf_int_new_file();
if (fileIdx < 0)
return fileIdx;
fileEntry = &plf_files[fileIdx];
/* Open the given filename */
fileEntry->fildes = open(filename, O_RDWR | O_CREAT | O_BINARY, 0644 );
if (fileEntry->fildes < 0)
{
plf_close(fileIdx);
return PLF_E_IO;
}
fileEntry->hdr.dwHdrSize = sizeof(s_plf_file);
fileEntry->hdr.dwSectHdrSize = sizeof(s_plf_section);
fileEntry->hdr.dwHdrVersion = 0x0A;
fileEntry->current_size = plf_int_write(fileIdx, &(fileEntry->hdr), 0, sizeof(s_plf_file));
fileEntry->flags |= PLF_FILE_FLAG_WRITE;
return fileIdx;
}
void FileInfo(const char* filename)
{
int verify_result;
int installerIdx, i, num_entries;
int fileIdx, fileIdxInstaller;
s_plf_file *fileHdrInstaller;
s_plf_section* installerSection = 0;
void* buffer;
fileIdx = plf_open_file(filename);
DumpPLF(fileIdx);
if (fileIdx < 0)
{
printf("!!! plf_open_file(%s) failed: %d\n", filename, fileIdx);
return;
}
/* Verify the file */
verify_result = plf_verify(fileIdx);
if (verify_result < 0)
{
printf("!!! plf_verify(%s) failed: %d\n", filename, verify_result);
}
/* Find the installer section */
num_entries = plf_get_num_sections(fileIdx);
for(i = 0; i < num_entries; ++i)
{
installerSection = plf_get_section_header(fileIdx, i);
if (installerSection != 0 && installerSection->dwSectionType == 0x0c)
break;
}
if (i >= num_entries || installerSection == 0)
{
printf("!!! unable to find installer section in %s\n", filename);
goto FileInfo_exit_1;
}
/* Found the installer */
installerIdx = i;
/* Now open the installer from RAM */
buffer = malloc(installerSection->dwSectionSize);
if (!buffer)
{
printf("!!! unable to alloc %d bytes\n", installerSection->dwSectionSize);
goto FileInfo_exit_1;
}
plf_get_payload_raw(fileIdx, installerIdx, buffer, 0, installerSection->dwSectionSize);
fileIdxInstaller = plf_open_ram(buffer, installerSection->dwSectionSize);
if (fileIdxInstaller < 0)
{
printf("!!! plf_open_ram for installer failed: %d\n", fileIdxInstaller);
goto FileInfo_exit_2;
}
fileHdrInstaller = plf_get_file_header(fileIdxInstaller);
printf("*** Installer found! Version: %d.%d.%d ***\n", fileHdrInstaller->dwVersionMajor, fileHdrInstaller->dwVersionMinor, fileHdrInstaller->dwVersionBugfix);
FileInfo_exit_2:
free(buffer);
FileInfo_exit_1:
plf_close(fileIdx);
}
