1 /* Toybox infrastructure.
3 * Copyright 2006 Rob Landley <rob@landley.net>
6 // Stuff that needs to go before the standard headers
8 #include "generated/config.h"
9 #include "lib/portability.h"
11 // General posix-2008 headers
35 #include <sys/resource.h>
37 #include <sys/statvfs.h>
39 #include <sys/times.h>
40 #include <sys/types.h>
41 #include <sys/utsname.h>
51 #include <arpa/inet.h>
54 #include <netinet/in.h>
55 #include <netinet/tcp.h>
57 #include <sys/socket.h>
60 // Internationalization support (also in POSIX and LSB)
68 #include <sys/ioctl.h>
69 #include <sys/statfs.h>
70 #include <sys/sysinfo.h>
73 #include "toys/e2fs.h"
75 // Get list of function prototypes for all enabled command_main() functions.
77 #define NEWTOY(name, opts, flags) void name##_main(void);
78 #define OLDTOY(name, oldname, opts, flags)
79 #include "generated/newtoys.h"
80 #include "generated/oldtoys.h"
81 #include "generated/flags.h"
82 #include "generated/globals.h"
84 // These live in main.c
86 struct toy_list *toy_find(char *name);
87 void toy_init(struct toy_list *which, char *argv[]);
88 void toy_exec(char *argv[]);
90 // Flags describing command behavior.
92 #define TOYFLAG_USR (1<<0)
93 #define TOYFLAG_BIN (1<<1)
94 #define TOYFLAG_SBIN (1<<2)
95 #define TOYMASK_LOCATION ((1<<4)-1)
97 // This is a shell built-in function, running in the same process context.
98 #define TOYFLAG_NOFORK (1<<4)
100 // Start command with a umask of 0 (saves old umask in this.old_umask)
101 #define TOYFLAG_UMASK (1<<5)
103 // This command runs as root.
104 #define TOYFLAG_STAYROOT (1<<6)
105 #define TOYFLAG_NEEDROOT (1<<7)
106 #define TOYFLAG_ROOTONLY (TOYFLAG_STAYROOT|TOYFLAG_NEEDROOT)
108 // Call setlocale to listen to environment variables.
109 // This invalidates sprintf("%.*s", size, string) as a valid length constraint.
110 #define TOYFLAG_LOCALE (1<<8)
112 // Array of available commands
114 extern struct toy_list {
116 void (*toy_main)(void);
121 // Global context shared by all commands.
123 extern struct toy_context {
124 struct toy_list *which; // Which entry in toy_list is this one?
125 char **argv; // Original command line arguments
126 char **optargs; // Arguments left over from get_optflags()
127 unsigned optflags; // Command line option flags from get_optflags()
128 int exitval; // Value error_exit feeds to exit()
129 int optc; // Count of optargs
130 int exithelp; // Should error_exit print a usage message first?
131 int old_umask; // Old umask preserved by TOYFLAG_UMASK
132 int toycount; // Total number of commands in this build
133 int signal; // generic_signal() records what signal it saw here
134 int signalfd; // and writes signal to this fd, if set
136 // This is at the end so toy_init() doesn't zero it.
137 jmp_buf *rebound; // longjmp here instead of exit when do_rebound set
140 // Two big temporary buffers: one for use by commands, one for library functions
142 extern char toybuf[4096], libbuf[4096];
144 extern char **environ;
148 #define ARRAY_LEN(array) (sizeof(array)/sizeof(*array))