openat support AT_FDCWD flag (a166d03e) · Commits · David Auer / gekkofs

ifs/src/preload/intcp_functions.cpp

+6 −8

Original line number	Diff line number	Diff line
		@@ -82,10 +82,13 @@ int openat(int dirfd, const char *cpath, int flags, ...) {

		std::string resolved;

		if(cpath[0] != PSP) {
		if((cpath[0] == PSP) \|\| (dirfd == AT_FDCWD)) {
		// cpath is absolute or relative to CWD
		if (CTX->relativize_path(cpath, resolved)) {
		return adafs_open(resolved, mode, flags);
		}
		} else {
		// cpath is relative

		//TODO handle the case in which dirfd is AT_FDCWD
		if(!(CTX->file_map()->exist(dirfd))) {
		//TODO relative cpath could still lead to our FS
		return LIBC_FUNC(openat, dirfd, cpath, flags, mode);
		@@ -106,11 +109,6 @@ int openat(int dirfd, const char *cpath, int flags, ...) {
		if(resolve_path(path, resolved)) {
		return adafs_open(resolved, mode, flags);
		}
		} else {
		// Path is absolute
		if (CTX->relativize_path(cpath, resolved)) {
		return adafs_open(resolved, mode, flags);
		}
		}
		return LIBC_FUNC(openat, dirfd, resolved.c_str(), flags, mode);
		}