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Diffstat (limited to 'src/sudo_edit.h')
-rw-r--r-- | src/sudo_edit.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/sudo_edit.h b/src/sudo_edit.h new file mode 100644 index 0000000..3209b9f --- /dev/null +++ b/src/sudo_edit.h @@ -0,0 +1,55 @@ +/* + * SPDX-License-Identifier: ISC + * + * Copyright (c) 2021 Todd C. Miller <Todd.Miller@sudo.ws> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef SUDO_EDIT_H +#define SUDO_EDIT_H + +/* + * Directory open flags for use with openat(2). + * Use O_SEARCH/O_PATH and/or O_DIRECTORY where possible. + */ +#if defined(O_SEARCH) +# if defined(O_DIRECTORY) +# define DIR_OPEN_FLAGS (O_SEARCH|O_DIRECTORY) +# else +# define DIR_OPEN_FLAGS (O_SEARCH) +# endif +#elif defined(O_PATH) +# if defined(O_DIRECTORY) +# define DIR_OPEN_FLAGS (O_PATH|O_DIRECTORY) +# else +# define DIR_OPEN_FLAGS (O_PATH) +# endif +#elif defined(O_DIRECTORY) +# define DIR_OPEN_FLAGS (O_RDONLY|O_DIRECTORY) +#else +# define DIR_OPEN_FLAGS (O_RDONLY|O_NONBLOCK) +#endif + +/* copy_file.c */ +int sudo_copy_file(const char *src, int src_fd, off_t src_len, const char *dst, int dst_fd, off_t dst_len); +bool sudo_check_temp_file(int tfd, const char *tname, uid_t uid, struct stat *sb); + +/* edit_open.c */ +struct sudo_cred; +void switch_user(uid_t euid, gid_t egid, int ngroups, GETGROUPS_T *groups); +int sudo_edit_open(char *path, int oflags, mode_t mode, unsigned int sflags, const struct sudo_cred *user_cred, const struct sudo_cred *cur_cred); +int dir_is_writable(int dfd, const struct sudo_cred *user_cred, const struct sudo_cred *cur_cred); +bool sudo_edit_parent_valid(char *path, unsigned int sflags, const struct sudo_cred *user_cred, const struct sudo_cred *cur_cred); + +#endif /* SUDO_EDIT_H */ |