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systemd/src/shared/exec-util.h
Yu Watanabe 8521338f95 exec-util: make execute_strv() optionally take root directory
Preparation for rewriting kernel-install in C.
2023-04-16 19:40:12 +09:00

65 lines
2.5 KiB
C

/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include <stdbool.h>
#include "time-util.h"
typedef int (*gather_stdout_callback_t) (int fd, void *arg);
enum {
STDOUT_GENERATE, /* from generators to helper process */
STDOUT_COLLECT, /* from helper process to main process */
STDOUT_CONSUME, /* process data in main process */
_STDOUT_CONSUME_MAX,
};
typedef enum {
EXEC_DIR_NONE = 0, /* No execdir flags */
EXEC_DIR_PARALLEL = 1 << 0, /* Execute scripts in parallel, if possible */
EXEC_DIR_IGNORE_ERRORS = 1 << 1, /* Ignore non-zero exit status of scripts */
EXEC_DIR_SET_SYSTEMD_EXEC_PID = 1 << 2, /* Set $SYSTEMD_EXEC_PID environment variable */
EXEC_DIR_SKIP_REMAINING = 1 << 3, /* Ignore remaining executions when one exit with 77. */
} ExecDirFlags;
typedef enum ExecCommandFlags {
EXEC_COMMAND_IGNORE_FAILURE = 1 << 0,
EXEC_COMMAND_FULLY_PRIVILEGED = 1 << 1,
EXEC_COMMAND_NO_SETUID = 1 << 2,
EXEC_COMMAND_AMBIENT_MAGIC = 1 << 3,
EXEC_COMMAND_NO_ENV_EXPAND = 1 << 4,
_EXEC_COMMAND_FLAGS_INVALID = -EINVAL,
} ExecCommandFlags;
int execute_strv(
const char *name,
char* const* paths,
const char *root,
usec_t timeout,
gather_stdout_callback_t const callbacks[_STDOUT_CONSUME_MAX],
void* const callback_args[_STDOUT_CONSUME_MAX],
char *argv[],
char *envp[],
ExecDirFlags flags);
int execute_directories(
const char* const* directories,
usec_t timeout,
gather_stdout_callback_t const callbacks[_STDOUT_CONSUME_MAX],
void* const callback_args[_STDOUT_CONSUME_MAX],
char *argv[],
char *envp[],
ExecDirFlags flags);
int exec_command_flags_from_strv(char **ex_opts, ExecCommandFlags *flags);
int exec_command_flags_to_strv(ExecCommandFlags flags, char ***ex_opts);
extern const gather_stdout_callback_t gather_environment[_STDOUT_CONSUME_MAX];
const char* exec_command_flags_to_string(ExecCommandFlags i);
ExecCommandFlags exec_command_flags_from_string(const char *s);
int fexecve_or_execve(int executable_fd, const char *executable, char *const argv[], char *const envp[]);
int fork_agent(const char *name, const int except[], size_t n_except, pid_t *ret_pid, const char *path, ...) _sentinel_;