toybox/toys.h
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   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
  11// General posix-2008 headers
  12#include <ctype.h>
  13#include <dirent.h>
  14#include <errno.h>
  15#include <fcntl.h>
  16#include <fnmatch.h>
  17#include <grp.h>
  18#include <inttypes.h>
  19#include <limits.h>
  20#include <math.h>
  21#include <paths.h>
  22#include <pwd.h>
  23#include <regex.h>
  24#include <sched.h>
  25#include <setjmp.h>
  26#include <signal.h>
  27#include <stdarg.h>
  28#include <stddef.h>
  29#include <stdint.h>
  30#include <stdio.h>
  31#include <stdlib.h>
  32#include <string.h>
  33#include <strings.h>
  34#include <sys/mman.h>
  35#include <sys/resource.h>
  36#include <sys/stat.h>
  37#include <sys/statvfs.h>
  38#include <sys/time.h>
  39#include <sys/times.h>
  40#include <sys/utsname.h>
  41#include <sys/wait.h>
  42#include <syslog.h>
  43#include <termios.h>
  44#include <time.h>
  45#include <unistd.h>
  46#include <utime.h>
  47
  48// Posix networking
  49
  50#include <arpa/inet.h>
  51#include <netdb.h>
  52#include <net/if.h>
  53#include <netinet/in.h>
  54#include <netinet/tcp.h>
  55#include <poll.h>
  56#include <sys/socket.h>
  57#include <sys/un.h>
  58
  59// Internationalization support (also in POSIX)
  60
  61#include <langinfo.h>
  62#include <locale.h>
  63#include <wchar.h>
  64#include <wctype.h>
  65
  66// Non-posix headers
  67#include <sys/ioctl.h>
  68#include <sys/syscall.h>
  69
  70#include "lib/lib.h"
  71#include "lib/lsm.h"
  72#include "lib/toyflags.h"
  73
  74// Get list of function prototypes for all enabled command_main() functions.
  75
  76#define NEWTOY(name, opts, flags) void name##_main(void);
  77#define OLDTOY(name, oldname, flags) void oldname##_main(void);
  78#include "generated/newtoys.h"
  79#include "generated/flags.h"
  80#include "generated/globals.h"
  81#include "generated/tags.h"
  82
  83// These live in main.c
  84
  85#define HELP_USAGE   1  // usage: line only
  86#define HELP_HEADER  2  // Add Toybox header line to help output
  87#define HELP_SEE     4  // "See COMMAND" instead of dereferencing alias
  88#define HELP_HTML    8  // Output HTML
  89
  90struct toy_list *toy_find(char *name);
  91void show_help(FILE *out, int full);
  92void check_help(char **arg);
  93void toy_singleinit(struct toy_list *which, char *argv[]);
  94void toy_init(struct toy_list *which, char *argv[]);
  95void toy_exec(char *argv[]);
  96
  97// Array of available commands
  98
  99extern struct toy_list {
 100  char *name;
 101  void (*toy_main)(void);
 102  char *options;
 103  unsigned flags;
 104} toy_list[];
 105
 106// Global context shared by all commands.
 107
 108extern struct toy_context {
 109  struct toy_list *which;  // Which entry in toy_list is this one?
 110  char **argv;             // Original command line arguments
 111  char **optargs;          // Arguments left over from get_optflags()
 112  unsigned long long optflags; // Command line option flags from get_optflags()
 113  int optc;                // Count of optargs
 114  short toycount;          // Total number of commands in this build
 115  char exitval;            // Value error_exit feeds to exit()
 116  char wasroot;            // dropped setuid
 117
 118  // toy_init() should not zero past here.
 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  int envc;                // Count of original environ entries
 123  int old_umask;           // Old umask preserved by TOYFLAG_UMASK
 124  short signal;            // generic_signal() records what signal it saw here
 125  int signalfd;            // and writes signal to this fd, if set
 126} toys;
 127
 128// Two big temporary buffers: one for use by commands, one for library functions
 129
 130extern char **environ, *toybox_version, toybuf[4096], libbuf[4096];
 131
 132#define FLAG(x) (!!(toys.optflags&FLAG_##x))  // Return 1 if flag set, 0 if not
 133
 134#define GLOBALS(...)
 135#define ARRAY_LEN(array) (sizeof(array)/sizeof(*array))
 136#define TAGGED_ARRAY(X, ...) {__VA_ARGS__}
 137
 138#ifndef TOYBOX_VERSION
 139#ifndef TOYBOX_VENDOR
 140#define TOYBOX_VENDOR ""
 141#endif
 142#define TOYBOX_VERSION "0.8.10"TOYBOX_VENDOR
 143#endif
 144