From: Andreas Reichel <[email protected]> To compare device paths it is necessary to be able to split off sub-paths from the right hand side. Implement a simple function for that purpose.
Signed-off-by: Andreas Reichel <[email protected]> --- include/utils.h | 1 + utils.c | 25 +++++++++++++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/include/utils.h b/include/utils.h index b8eddd1..846e8be 100644 --- a/include/utils.h +++ b/include/utils.h @@ -41,5 +41,6 @@ EFI_STATUS get_volumes(VOLUME_DESC **volumes, UINTN *count); EFI_STATUS close_volumes(VOLUME_DESC *volumes, UINTN count); EFI_DEVICE_PATH *FileDevicePathFromConfig(EFI_HANDLE device, CHAR16 *payloadpath); +CHAR16 *dirname(CHAR16 *input); #endif // __H_UTILS__ diff --git a/utils.c b/utils.c index 5aff01b..94226fb 100644 --- a/utils.c +++ b/utils.c @@ -271,3 +271,28 @@ EFI_DEVICE_PATH *FileDevicePathFromConfig(EFI_HANDLE device, return appendeddevpath; } + +CHAR16 *dirname(CHAR16 *input) +{ + CHAR16 *dst; + UINTN len; + + len = StrLen(input); + + dst = mmalloc((len + 1) * sizeof(CHAR16)); + if (!dst) { + return NULL; + } + + StrCpy(dst, input); + + for (UINTN i = len; i > 0; i--) + { + if (dst[i] == L'/') { + dst[i] = L'\0'; + break; + } + } + + return dst; +} -- 2.18.0 -- You received this message because you are subscribed to the Google Groups "EFI Boot Guard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/efibootguard-dev/20180903140934.13454-2-andreas.reichel.ext%40siemens.com. For more options, visit https://groups.google.com/d/optout.
