src/utils.h


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#ifndef POTD_UTILS_H
#define POTD_UTILS_H 1

#ifndef SIZEOF
#define SIZEOF(arr) (sizeof(arr)/sizeof(arr[0]))
#endif

extern char *arg0;


int set_fd_nonblock(int fd);

int set_child_sighandler(void);

void set_procname(const char *new_arg0);

pid_t daemonize(int stay_foreground);

int close_fds_except(int fd, ...);

int redirect_devnull_to(int fds, ...);

int change_user_group(const char *user, const char *group);

int safe_chroot(const char *newroot);

int dir_is_mountpoint(const char *path);

void chk_chroot(void);

void mount_root(void);

int mount_dev(const char *mount_path);

int mount_pts(const char *mount_path);

int mount_proc(const char *mount_path);

int create_device_file_checked(const char *mount_path, const char *device_file,
                               mode_t mode, int add_mode, dev_t dev);

int create_device_files(const char *mount_path);

#endif