void help_main(void)
{
int i;
if (!(toys.optflags & FLAG_a)) {
struct toy_list *t = toys.which;
if (*toys.optargs && !(t = toy_find(*toys.optargs)))
error_exit("Unknown command '%s'", *toys.optargs);
do_help(t);
return;
}
if (toys.optflags & FLAG_h) {
xprintf("<html>\n<title>Toybox command list</title>\n<body>\n<p>\n");
for (i=0; i < toys.toycount; i++)
xprintf("<a href=\"#%s\">%s</a>\n", toy_list[i].name,
toy_list[i].name);
xprintf("</p>\n");
}
for (i = 0; i < toys.toycount; i++) {
if (toys.optflags & FLAG_h) xprintf("<hr>\n<pre>\n");
do_help(toy_list+i);
if (toys.optflags & FLAG_h) xprintf("</pre>\n");
}
if (toys.optflags & FLAG_h) xprintf("</html>");
}
void show_help(FILE *out)
{
int i = toys.which-toy_list;
char *s;
if (CFG_TOYBOX_HELP) {
for (;;) {
s = help_data;
while (i--) s += strlen(s) + 1;
// If it's an alias, restart search for real name
if (*s != 255) break;
i = toy_find(++s)-toy_list;
}
fprintf(out, "%s", s);
}
}
// Like exec() but runs an internal toybox command instead of another file.
// Only returns if it can't run command internally, otherwise exit() when done.
void toy_exec(char *argv[])
{
struct toy_list *which;
// Return if we can't find it (which includes no multiplexer case),
if (!(which = toy_find(*argv))) return;
// Return if stack depth getting noticeable (proxy for leaked heap, etc).
if (toys.stacktop && labs((char *)toys.stacktop-(char *)&which)>6000)
return;
// Return if we need to re-exec to acquire root via suid bit.
if (toys.which && (which->flags&TOYFLAG_ROOTONLY) && toys.wasroot) return;
// Run command
toy_init(which, argv);
if (toys.which) toys.which->toy_main();
xexit();
}
// Setup toybox global state for this command.
static void toy_singleinit(struct toy_list *which, char *argv[])
{
toys.which = which;
toys.argv = argv;
if (CFG_TOYBOX_I18N) setlocale(LC_ALL, "C"+!!(which->flags & TOYFLAG_LOCALE));
if (CFG_TOYBOX_HELP_DASHDASH && argv[1] && !strcmp(argv[1], "--help")) {
if (CFG_TOYBOX && toys.which == toy_list && toys.argv[2])
if (!(toys.which = toy_find(toys.argv[2]))) return;
show_help(stdout);
xexit();
}
if (NEED_OPTIONS && which->options) get_optflags();
else {
toys.optargs = argv+1;
for (toys.optc = 0; toys.optargs[toys.optc]; toys.optc++);
}
toys.old_umask = umask(0);
if (!(which->flags & TOYFLAG_UMASK)) umask(toys.old_umask);
toys.signalfd--;
toys.toycount = ARRAY_LEN(toy_list);
}
