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/* help.c - Show help for toybox commands
*
* Copyright 2007 Rob Landley <rob@landley.net>
*
* Often a shell builtin.
USE_HELP(NEWTOY(help, "<1", TOYFLAG_BIN))
config HELP
bool "help"
default y
help
usage: help [command]
Show usage information for toybox commands.
Run "toybox" with no arguments for a list of available commands.
*/
#include "toys.h"
#include "generated/help.h"
#undef NEWTOY
#undef OLDTOY
#define NEWTOY(name,opt,flags) help_##name "\0"
#define OLDTOY(name,oldname,opts,flags) "\xff" #oldname "\0"
static char *help_data =
#include "generated/newtoys.h"
;
void help_main(void)
{
struct toy_list *t = toy_find(*toys.optargs);
int i = t-toy_list;
char *s = help_data;
if (!t) error_exit("Unknown command '%s'", *toys.optargs);
for (;;) {
while (i--) s += strlen(s) + 1;
if (*s != 255) break;
i = toy_find(++s)-toy_list;
s = help_data;
}
fprintf(toys.exithelp ? stderr : stdout, "%s", s);
}
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