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Use 64-bit file sizes when resuming scans. See #1742

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dmiller
2019-09-16 16:33:04 +00:00
parent 7ce92c68df
commit 7d7f0672d2
3 changed files with 17 additions and 9 deletions
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18
utils.cc
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@@ -605,7 +605,7 @@ static int open2mmap_flags(int open_flags)
undefined, and errno is set to something appropriate. The user is responsible
for doing an munmap(ptr, length) when finished with it. openflags should be
O_RDONLY or O_RDWR, or O_WRONLY. */
char *mmapfile(char *fname, int *length, int openflags) {
char *mmapfile(char *fname, s64 *length, int openflags) {
struct stat st;
int fd;
int mmap_flags;
@@ -654,9 +654,10 @@ char *mmapfile(char *fname, int *length, int openflags) {
static HANDLE gmap = NULL;
char *mmapfile(char *fname, int *length, int openflags) {
char *mmapfile(char *fname, s64 *length, int openflags) {
HANDLE fd;
DWORD mflags, oflags;
DWORD lowsize, highsize;
char *fileptr;
if (!length || !fname) {
@@ -683,11 +684,18 @@ char *mmapfile(char *fname, int *length, int openflags) {
if (!fd)
pfatal ("%s(%u): CreateFile()", __FILE__, __LINE__);
*length = (int) GetFileSize (fd, NULL);
lowsize = GetFileSize (fd, &highsize);
if (lowsize == INVALID_FILE_SIZE && GetLastError() != NO_ERROR) {
pfatal("%s(%u): GetFileSize(), file '%s'", __FILE__, __LINE__, fname);
}
*length = lowsize + highsize << sizeof(DWORD);
if (*length < 0) {
fatal("%s(%u): size too large, file '%s'", __FILE__, __LINE__, fname);
}
gmap = CreateFileMapping (fd, NULL, mflags, 0, 0, NULL);
if (!gmap) {
pfatal("%s(%u): CreateFileMapping(), file '%s', length %d, mflags %08lX",
pfatal("%s(%u): CreateFileMapping(), file '%s', length %I64d, mflags %08lX",
__FILE__, __LINE__, fname, *length, mflags);
}
@@ -696,7 +704,7 @@ char *mmapfile(char *fname, int *length, int openflags) {
pfatal ("%s(%u): MapViewOfFile()", __FILE__, __LINE__);
if (o.debugging > 2) {
log_write(LOG_PLAIN, "%s(): fd %08lX, gmap %08lX, fileptr %08lX, length %d\n",
log_write(LOG_PLAIN, "%s(): fd %08lX, gmap %08lX, fileptr %08lX, length %I64d\n",
__func__, (DWORD)fd, (DWORD)gmap, (DWORD)fileptr, *length);
}