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110 lines
4.0 KiB
C
110 lines
4.0 KiB
C
/* util.h - Header for all utility functions
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*/
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#ifndef _UTILS_H_
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#define _UTILS_H_
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#include <stdio.h>
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#include <dirent.h>
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#include <pthread.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include "vector.h"
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#define UID_SHELL (get_shell_uid())
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#define UID_ROOT 0
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#define UID_SYSTEM (get_system_uid())
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#define UID_RADIO (get_radio_uid())
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extern int quit_signals[];
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// xwrap.c
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FILE *xfopen(const char *pathname, const char *mode);
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FILE *xfdopen(int fd, const char *mode);
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#define GET_MACRO(_1, _2, _3, NAME, ...) NAME
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#define xopen(...) GET_MACRO(__VA_ARGS__, xopen3, xopen2)(__VA_ARGS__)
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int xopen2(const char *pathname, int flags);
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int xopen3(const char *pathname, int flags, mode_t mode);
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ssize_t xwrite(int fd, const void *buf, size_t count);
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ssize_t xread(int fd, void *buf, size_t count);
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ssize_t xxread(int fd, void *buf, size_t count);
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int xpipe2(int pipefd[2], int flags);
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int xsetns(int fd, int nstype);
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DIR *xopendir(const char *name);
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struct dirent *xreaddir(DIR *dirp);
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pid_t xsetsid();
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int xsocket(int domain, int type, int protocol);
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int xbind(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
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int xconnect(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
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int xlisten(int sockfd, int backlog);
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int xaccept4(int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags);
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void *xmalloc(size_t size);
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void *xcalloc(size_t nmemb, size_t size);
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void *xrealloc(void *ptr, size_t size);
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ssize_t xsendmsg(int sockfd, const struct msghdr *msg, int flags);
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ssize_t xrecvmsg(int sockfd, struct msghdr *msg, int flags);
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int xpthread_create(pthread_t *thread, const pthread_attr_t *attr,
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void *(*start_routine) (void *), void *arg);
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int xsocketpair(int domain, int type, int protocol, int sv[2]);
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int xstat(const char *pathname, struct stat *buf);
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int xlstat(const char *pathname, struct stat *buf);
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int xdup2(int oldfd, int newfd);
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ssize_t xreadlink(const char *pathname, char *buf, size_t bufsiz);
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int xsymlink(const char *target, const char *linkpath);
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int xmount(const char *source, const char *target,
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const char *filesystemtype, unsigned long mountflags,
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const void *data);
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int xumount(const char *target);
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int xumount2(const char *target, int flags);
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int xchmod(const char *pathname, mode_t mode);
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int xrename(const char *oldpath, const char *newpath);
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int xmkdir(const char *pathname, mode_t mode);
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void *xmmap(void *addr, size_t length, int prot, int flags,
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int fd, off_t offset);
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ssize_t xsendfile(int out_fd, int in_fd, off_t *offset, size_t count);
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int xmkdir_p(const char *pathname, mode_t mode);
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// misc.c
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unsigned get_shell_uid();
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unsigned get_system_uid();
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unsigned get_radio_uid();
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int check_data();
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int file_to_vector(const char* filename, struct vector *v);
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int vector_to_file(const char* filename, struct vector *v);
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ssize_t fdgets(char *buf, size_t size, int fd);
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void ps(void (*func)(int));
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void ps_filter_proc_name(const char *filter, void (*func)(int));
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int create_links(const char *bin, const char *path);
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void unlock_blocks();
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void setup_sighandlers(void (*handler)(int));
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int exec_command(int err, int *fd, void (*setupenv)(struct vector*), const char *argv0, ...);
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int exec_command_sync(char *const argv0, ...);
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int mkdir_p(const char *pathname, mode_t mode);
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int bind_mount(const char *from, const char *to);
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int open_new(const char *filename);
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int cp_afc(const char *source, const char *target);
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void fclone_attr(const int sourcefd, const int targetfd);
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void clone_attr(const char *source, const char *target);
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void get_client_cred(int fd, struct ucred *cred);
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int switch_mnt_ns(int pid);
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// img.c
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#define round_size(a) ((((a) / 32) + 2) * 32)
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#define SOURCE_TMP "/dev/source"
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#define TARGET_TMP "/dev/target"
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int create_img(const char *img, int size);
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int get_img_size(const char *img, int *used, int *total);
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int resize_img(const char *img, int size);
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char *mount_image(const char *img, const char *target);
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void umount_image(const char *target, const char *device);
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int merge_img(const char *source, const char *target);
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void trim_img(const char *img);
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#endif
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