faccessat support relative paths (f9065165) · Commits · hpc / gekkofs

ifs/src/preload/intcp_functions.cpp

+26 −7

Original line number	Diff line number	Diff line
		@@ -368,18 +368,37 @@ int access(const char* path, int mask) __THROW {
		return (reinterpret_cast<decltype(&access)>(libc_access))(path, mask);
		}

		int faccessat(int dirfd, const char* path, int mode, int flags) __THROW {
		int faccessat(int dirfd, const char* cpath, int mode, int flags) __THROW {
		init_passthrough_if_needed();
		if(CTX->initialized()) {
		std::string path(cpath);
		CTX->log()->trace("{}() called path {} mode {} dirfd {} flags {}", __func__, path, mode, dirfd, flags);
		std::string rel_path(path);
		if (CTX->relativize_path(rel_path)) {
		// not implemented
		CTX->log()->trace("{}() not implemented.", __func__);

		if(is_relative_path(path)) {
		if(!(CTX->file_map()->exist(dirfd))) {
		goto passthrough;
		}
		auto dir = CTX->file_map()->get_dir(dirfd);
		if(dir == nullptr) {
		CTX->log()->error("{}() dirfd is not a directory ", __func__);
		errno = ENOTDIR;
		return -1;
		}
		if(has_trailing_slash(path)){
		path.pop_back();
		}
		return adafs_access(dir->path() + '/' + path, mode);
		} else {
		// Path is absolute
		assert(is_absolute_path(path));

		if (CTX->relativize_path(path)) {
		return adafs_access(path, mode);
		}
		}
		}
		return (reinterpret_cast<decltype(&faccessat)>(libc_faccessat))(dirfd, path, mode, flags);
		passthrough:
		return (reinterpret_cast<decltype(&faccessat)>(libc_faccessat))(dirfd, cpath, mode, flags);
		}