1 /* Toybox infrastructure. 2 * 3 * Copyright 2006 Rob Landley <rob@landley.net> 4 */ 5 6 // Stuff that needs to go before the standard headers 7 8 #include "generated/config.h" 9 #include "lib/portability.h" 10 #include "syscall.h" 11 12 // General posix-2008 headers 13 #include <ctype.h> 14 #include <dirent.h> 15 #include <errno.h> 16 #include <fcntl.h> 17 #include <fnmatch.h> 18 #include <grp.h> 19 #include <inttypes.h> 20 #include <limits.h> 21 #include <math.h> 22 #include <paths.h> 23 #include <pwd.h> 24 #include <regex.h> 25 #include <sched.h> 26 #include <setjmp.h> 27 #include <signal.h> 28 #include <stdarg.h> 29 #include <stddef.h> 30 #include <stdint.h> 31 #include <stdio.h> 32 #include <stdlib.h> 33 #include <string.h> 34 #include <strings.h> 35 #include <sys/mman.h> 36 #include <sys/resource.h> 37 #include <sys/stat.h> 38 #include <sys/statfs.h> 39 #include <sys/statvfs.h> 40 #include <sys/sysinfo.h> 41 #include <sys/time.h> 42 #include <sys/times.h> 43 #include <sys/utsname.h> 44 #include <sys/wait.h> 45 #include <syslog.h> 46 #include <termios.h> 47 #include <time.h> 48 #include <unistd.h> 49 #include <utime.h> 50 51 // Posix networking 52 53 #include <arpa/inet.h> 54 #include <netdb.h> 55 #include <net/if.h> 56 #include <netinet/in.h> 57 #include <netinet/tcp.h> 58 #include <poll.h> 59 #include <sys/socket.h> 60 #include <sys/un.h> 61 62 // Internationalization support (also in POSIX and LSB) 63 64 #include <locale.h> 65 #include <wchar.h> 66 #include <wctype.h> 67 68 // LSB 4.1 headers 69 #include <sys/ioctl.h> 70 71 #include "lib/lib.h" 72 #include "lib/lsm.h" 73 #include "lib/toyflags.h" 74 75 // Get list of function prototypes for all enabled command_main() functions. 76 77 #define NEWTOY(name, opts, flags) void name##_main(void); 78 #define OLDTOY(name, oldname, flags) void oldname##_main(void); 79 #include "generated/newtoys.h" 80 #include "generated/flags.h" 81 #include "generated/globals.h" 82 #include "generated/tags.h" 83 84 // These live in main.c 85 86 #define USER_PRIVILEGE_PROCESS_GROUP 1U 87 #define KERNEL_PROCESS_GROUP 2U 88 89 struct toy_list *toy_find(char *name); 90 void toy_init(struct toy_list *which, char *argv[]); 91 void toy_exec(char *argv[]); 92 93 // Array of available commands 94 95 extern struct toy_list { 96 char *name; 97 void (*toy_main)(void); 98 char *options; 99 unsigned flags; 100 } toy_list[]; 101 102 // Global context shared by all commands. 103 104 extern struct toy_context { 105 struct toy_list *which; // Which entry in toy_list is this one? 106 char **argv; // Original command line arguments 107 char **optargs; // Arguments left over from get_optflags() 108 unsigned long long optflags; // Command line option flags from get_optflags() 109 int optc; // Count of optargs 110 int envc; // Count of original environ entries 111 int old_umask; // Old umask preserved by TOYFLAG_UMASK 112 short toycount; // Total number of commands in this build 113 short signal; // generic_signal() records what signal it saw here 114 int signalfd; // and writes signal to this fd, if set 115 char exitval; // Value error_exit feeds to exit() 116 char wasroot; // dropped setuid 117 118 // This is at the end so toy_init() doesn't zero it. 119 sigjmp_buf *rebound; // siglongjmp here instead of exit when do_rebound 120 struct arg_list *xexit; // atexit() functions for xexit(), set by sigatexit() 121 void *stacktop; // nested toy_exec() call count, or 0 if vforked 122 } toys; 123 124 // Two big temporary buffers: one for use by commands, one for library functions 125 126 extern char toybuf[4096], libbuf[4096]; 127 128 extern char **environ; 129 130 #define FLAG(x) (toys.optflags&FLAG_##x) 131 132 #define GLOBALS(...) 133 #define ARRAY_LEN(array) (sizeof(array)/sizeof(*array)) 134 #define TAGGED_ARRAY(X, ...) {__VA_ARGS__} 135