LastBackslash = i;
} // for
PathOnly = StrDuplicate(FullPath);
- PathOnly[LastBackslash] = 0;
+ if (PathOnly != NULL)
+ PathOnly[LastBackslash] = 0;
} // if
return (PathOnly);
}
return Position;
} // INTN FindSubString()
+// Take an input path name, which may include a volume specification and/or
+// a path, and return separate volume, path, and file names. For instance,
+// "BIGVOL:\EFI\ubuntu\grubx64.efi" will return a VolName of "BIGVOL", a Path
+// of "EFI\ubuntu", and a Filename of "grubx64.efi". If an element is missing,
+// the returned pointer is NULL. The calling function is responsible for
+// freeing the allocated memory.
+VOID SplitPathName(CHAR16 *InPath, CHAR16 **VolName, CHAR16 **Path, CHAR16 **Filename) {
+ CHAR16 *Temp = NULL;
+
+ MyFreePool(*VolName);
+ MyFreePool(*Path);
+ MyFreePool(*Filename);
+ *VolName = *Path = *Filename = NULL;
+ Temp = StrDuplicate(InPath);
+ SplitVolumeAndFilename(&Temp, VolName); // VolName is NULL or has volume; Temp has rest of path
+ CleanUpPathNameSlashes(Temp);
+ *Path = FindPath(Temp); // *Path has path (may be 0-length); Temp unchanged.
+ *Filename = StrDuplicate(Temp + StrLen(*Path));
+ CleanUpPathNameSlashes(*Filename);
+ if (StrLen(*Path) == 0) {
+ MyFreePool(*Path);
+ *Path = NULL;
+ }
+ if (StrLen(*Filename) == 0) {
+ MyFreePool(*Filename);
+ *Filename = NULL;
+ }
+ MyFreePool(Temp);
+} // VOID SplitPathName
+
// Returns TRUE if SmallString is an element in the comma-delimited List,
// FALSE otherwise. Performs comparison case-insensitively (except on
// buggy EFIs with case-sensitive StriCmp() functions).
Found = TRUE;
} // while
} // if
- return Found;
+ return Found;
} // BOOLEAN IsIn()
+// Returns TRUE if specified Volume, Directory, and Filename correspond to an
+// element in the comma-delimited List, FALSE otherwise. Note that Directory and
+// Filename must *NOT* include a volume or path specification (that's part of
+// the Volume variable), but the List elements may. Performs comparison
+// case-insensitively (except on buggy EFIs with case-sensitive StriCmp()
+// functions).
+BOOLEAN FilenameIn(REFIT_VOLUME *Volume, CHAR16 *Directory, CHAR16 *Filename, CHAR16 *List) {
+ UINTN i = 0;
+ BOOLEAN Found = FALSE;
+ CHAR16 *OneElement;
+ CHAR16 *TargetVolName = NULL, *TargetPath = NULL, *TargetFilename = NULL;
+
+ if (Filename && List) {
+ while (!Found && (OneElement = FindCommaDelimited(List, i++))) {
+ Found = TRUE;
+ SplitPathName(OneElement, &TargetVolName, &TargetPath, &TargetFilename);
+ VolumeNumberToName(Volume, &TargetVolName);
+ if (((TargetVolName != NULL) && ((Volume == NULL) || (StriCmp(TargetVolName, Volume->VolName) != 0))) ||
+ ((TargetPath != NULL) && (StriCmp(TargetPath, Directory) != 0)) ||
+ ((TargetFilename != NULL) && (StriCmp(TargetFilename, Filename) != 0))) {
+ Found = FALSE;
+ } // if
+ MyFreePool(OneElement);
+ } // while
+ } // if
+
+ MyFreePool(TargetVolName);
+ MyFreePool(TargetPath);
+ MyFreePool(TargetFilename);
+ return Found;
+} // BOOLEAN FilenameIn()
+
+// If *VolName is of the form "fs#", where "#" is a number, and if Volume points
+// to this volume number, returns with *VolName changed to the volume name, as
+// stored in the Volume data structure.
+// Returns TRUE if this substitution was made, FALSE otherwise.
+BOOLEAN VolumeNumberToName(REFIT_VOLUME *Volume, CHAR16 **VolName) {
+ BOOLEAN MadeSubstitution = FALSE;
+ UINTN VolNum;
+
+ if ((VolName == NULL) || (*VolName == NULL))
+ return FALSE;
+
+ if ((StrLen(*VolName) > 2) && (*VolName[0] == L'f') && (*VolName[1] == L's') && (*VolName[2] >= L'0') && (*VolName[2] <= L'9')) {
+ VolNum = Atoi(*VolName + 2);
+ if (VolNum == Volume->VolNumber) {
+ MyFreePool(*VolName);
+ *VolName = StrDuplicate(Volume->VolName);
+ MadeSubstitution = TRUE;
+ } // if
+ } // if
+ return MadeSubstitution;
+} // BOOLEAN VolumeMatchesNumber()
+
// Implement FreePool the way it should have been done to begin with, so that
// it doesn't throw an ASSERT message if fed a NULL pointer....
VOID MyFreePool(IN VOID *Pointer) {