view toys.h @ 953:13916d161ec0

xzcat: remove XZ_(PREALLOC|SINGLE), inline xz_dec_bcj_create Because we only use XZ_DYNALLOC, there's a bunch of dead code. This patch removes the #ifdef's and if()s associated with support for multiple modes. single_call was only used to store the mode; it is no longer needed. A little bit of reorganization was needed to reduce the number of prototypes. Documentation associated with dead code was dropped. There are still some relics of multiple modes in the continued presence of "XZ_DYNALLOC" and xz_mode. Additionally, I inlined xz_dec_bcj_create; it was called once. This loses about 125 lines, mostly comments.
author Isaac Dunham <idunham@lavabit.com>
date Wed, 17 Jul 2013 17:25:07 -0500
parents d90f14e011b8
children d7bd69bec519
line wrap: on
line source

/* Toybox infrastructure.
 *
 * Copyright 2006 Rob Landley <rob@landley.net>
 */

#include "generated/config.h"

#include "lib/portability.h"

#include <ctype.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <grp.h>
#include <inttypes.h>
#include <limits.h>
#include <libgen.h>
#include <math.h>
#include <pty.h>
#include <pwd.h>
#include <sched.h>
#include <setjmp.h>
#include <sched.h>
#include <shadow.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/statfs.h>
#include <sys/statvfs.h>
#include <sys/sysinfo.h>
#include <sys/swap.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 <time.h>
#include <unistd.h>
#include <utime.h>
#include <utmpx.h>

// Internationalization support

#include <locale.h>
#include <wchar.h>
#include <wctype.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)
#include "generated/newtoys.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)

// 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?
  int exitval;             // Value error_exit feeds to exit()
  char **argv;             // Original command line arguments
  unsigned optflags;       // Command line option flags from get_optflags()
  char **optargs;          // Arguments left over from get_optflags()
  int optc;                // Count of optargs
  int exithelp;            // Should error_exit print a usage message first?
  int old_umask;           // Old umask preserved by TOYFLAG_UMASK
  jmp_buf *rebound;        // longjmp here instead of exit when do_rebound set
} toys;

// One big temporary buffer, for use by commands (not library functions).

extern char toybuf[4096];

#define GLOBALS(...)

#define ARRAY_LEN(array) (sizeof(array)/sizeof(*array))