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Diffstat (limited to '')
| -rw-r--r-- | lib/targetdir.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/lib/targetdir.h b/lib/targetdir.h new file mode 100644 index 0000000..558853e --- /dev/null +++ b/lib/targetdir.h @@ -0,0 +1,44 @@ +/* Target directory operands for coreutils + + Copyright 2022 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. */ + +#include <fcntl.h> +#include <stdbool.h> +#include <sys/stat.h> + +#ifndef _GL_INLINE_HEADER_BEGIN +# error "Please include config.h first." +#endif +_GL_INLINE_HEADER_BEGIN +#ifndef TARGETDIR_INLINE +# define TARGETDIR_INLINE _GL_INLINE +#endif + +/* Return a file descriptor open to FILE, for use in openat. + As an optimization, return AT_FDCWD if FILE must be the working directory. + As a side effect, possibly set *ST to the file's status. + Fail and set errno if FILE is not a directory. + On failure return -2 if AT_FDCWD is -1, -1 otherwise. */ +extern int target_directory_operand (char const *file, struct stat *st); + +/* Return true if FD represents success for target_directory_operand. */ +TARGETDIR_INLINE _GL_ATTRIBUTE_PURE bool +target_dirfd_valid (int fd) +{ + return fd != -1 - (AT_FDCWD == -1); +} + +_GL_INLINE_HEADER_END |