/* Toybox infrastructure. * * Copyright 2006 Rob Landley <rob@landley.net> */ // Stuff that needs to go before the standard headers #include "generated/config.h" #include "lib/portability.h" // General posix-2008 headers #include <ctype.h> #include <dirent.h> #include <errno.h> #include <fcntl.h> #include <fnmatch.h> #include <grp.h> #include <inttypes.h> #include <limits.h> #include <libgen.h> #include <math.h> #include <pwd.h> #include <regex.h> #include <sched.h> #include <setjmp.h> #include <signal.h> #include <stdarg.h> #include <stddef.h> #include <stdint.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include <sys/mman.h> #include <sys/resource.h> #include <sys/stat.h> #include <sys/statvfs.h> #include <sys/time.h> #include <sys/times.h> #include <sys/types.h> #include <sys/utsname.h> #include <sys/wait.h> #include <syslog.h> #include <termios.h> #include <time.h> #include <unistd.h> #include <utime.h> // Posix networking #include <arpa/inet.h> #include <netdb.h> #include <net/if.h> #include <netinet/in.h> #include <netinet/tcp.h> #include <poll.h> #include <sys/socket.h> #include <sys/un.h> // Internationalization support (also in POSIX and LSB) #include <locale.h> #include <wchar.h> #include <wctype.h> // LSB 4.1 headers #include <sys/ioctl.h> #include <sys/statfs.h> #include <sys/sysinfo.h> #include "lib/lib.h" #include "toys/e2fs.h" // Get list of function prototypes for all enabled command_main() functions. #define NEWTOY(name, opts, flags) void name##_main(void); #define OLDTOY(name, oldname, opts, flags) void oldname##_main(void); #include "generated/newtoys.h" #include "generated/oldtoys.h" #include "generated/flags.h" #include "generated/globals.h" // These live in main.c struct toy_list *toy_find(char *name); void toy_init(struct toy_list *which, char *argv[]); void toy_exec(char *argv[]); // Flags describing command behavior. #define TOYFLAG_USR (1<<0) #define TOYFLAG_BIN (1<<1) #define TOYFLAG_SBIN (1<<2) #define TOYMASK_LOCATION ((1<<4)-1) // This is a shell built-in function, running in the same process context. #define TOYFLAG_NOFORK (1<<4) // Start command with a umask of 0 (saves old umask in this.old_umask) #define TOYFLAG_UMASK (1<<5) // This command runs as root. #define TOYFLAG_STAYROOT (1<<6) #define TOYFLAG_NEEDROOT (1<<7) #define TOYFLAG_ROOTONLY (TOYFLAG_STAYROOT|TOYFLAG_NEEDROOT) // Call setlocale to listen to environment variables. // This invalidates sprintf("%.*s", size, string) as a valid length constraint. #define TOYFLAG_LOCALE (1<<8) // Array of available commands extern struct toy_list { char *name; void (*toy_main)(void); char *options; int flags; } toy_list[]; // Global context shared by all commands. extern struct toy_context { struct toy_list *which; // Which entry in toy_list is this one? char **argv; // Original command line arguments char **optargs; // Arguments left over from get_optflags() unsigned optflags; // Command line option flags from get_optflags() int exitval; // Value error_exit feeds to exit() int optc; // Count of optargs int exithelp; // Should error_exit print a usage message first? int old_umask; // Old umask preserved by TOYFLAG_UMASK int toycount; // Total number of commands in this build int signal; // generic_signal() records what signal it saw here int signalfd; // and writes signal to this fd, if set // This is at the end so toy_init() doesn't zero it. jmp_buf *rebound; // longjmp here instead of exit when do_rebound set int recursion; // How many nested calls to toy_exec() } toys; // Two big temporary buffers: one for use by commands, one for library functions extern char toybuf[4096], libbuf[4096]; extern char **environ; #define GLOBALS(...) #define ARRAY_LEN(array) (sizeof(array)/sizeof(*array))