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| author | Rob Landley <rob@landley.net> | 2020-01-03 03:10:17 -0600 |
|---|---|---|
| committer | Rob Landley <rob@landley.net> | 2020-01-03 03:10:17 -0600 |
| commit | a2cd46a5f342553c05ae6ef4e7a73069df0e1be1 (patch) | |
| tree | 55c7f84b31d94aa578616a04ec92480ced1553f3 /toys/other | |
| parent | 53090cd6c1343954d953625223b50e73abb6b9f3 (diff) | |
| download | toybox-a2cd46a5f342553c05ae6ef4e7a73069df0e1be1.tar.gz | |
Add MAYFORK to "help", teach it to behave differently when called as a
builtin, and add -u.
Diffstat (limited to 'toys/other')
| -rw-r--r-- | toys/other/help.c | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/toys/other/help.c b/toys/other/help.c index 6ce1b02e..eba3cb1e 100644 --- a/toys/other/help.c +++ b/toys/other/help.c @@ -4,7 +4,7 @@ * * Often a shell builtin. -USE_HELP(NEWTOY(help, ""USE_HELP_EXTRAS("ah"), TOYFLAG_BIN)) +USE_HELP(NEWTOY(help, ""USE_HELP_EXTRAS("ahu"), TOYFLAG_BIN|TOYFLAG_MAYFORK)) config HELP bool "help" @@ -22,9 +22,10 @@ config HELP_EXTRAS depends on TOYBOX depends on HELP help - usage: help [-ah] + usage: help [-ah] [COMMAND] -a All commands + -u Usage only -h HTML output */ @@ -33,13 +34,13 @@ config HELP_EXTRAS static void do_help(struct toy_list *t) { - if (toys.optflags & FLAG_h) + if (FLAG(h)) xprintf("<a name=\"%s\"><h1>%s</h1><blockquote><pre>\n", t->name, t->name); toys.which = t; - show_help(stdout); + show_help(stdout, !FLAG(u)); - if (toys.optflags & FLAG_h) xprintf("</blockquote></pre>\n"); + if (FLAG(h)) xprintf("</blockquote></pre>\n"); } // The simple help is just toys.which = toy_find("name"); show_help(stdout); @@ -48,8 +49,18 @@ static void do_help(struct toy_list *t) void help_main(void) { int i; - - if (!(toys.optflags & FLAG_a)) { + + // If called with no arguments as a builtin form the shell, show all builtins + if (!*toys.optargs && (toys.optflags&FLAGS_BUILTIN)) { + for (i = 0; i < toys.toycount; i++) { + if (!(toy_list[i].flags&(TOYFLAG_NOFORK|TOYFLAG_MAYFORK))) continue; + toys.which = toy_list+i; + show_help(stdout, 0); + } + return; + } + + if (!FLAG(a)) { struct toy_list *t = toys.which; if (*toys.optargs && !(t = toy_find(*toys.optargs))) @@ -58,7 +69,7 @@ void help_main(void) return; } - if (toys.optflags & FLAG_h) { + if (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\n</a>\n", toy_list[i].name, @@ -67,15 +78,15 @@ void help_main(void) } for (i = 0; i < toys.toycount; i++) { - if (toys.optflags & FLAG_h) xprintf("<hr>\n<pre>\n"); - else { + if (FLAG(h)) xprintf("<hr>\n<pre>\n"); + else if (!FLAG(u)) { memset(toybuf, '-', 78); memcpy(toybuf+3, toy_list[i].name, strlen(toy_list[i].name)); printf("\n%s\n\n", toybuf); } do_help(toy_list+i); - if (toys.optflags & FLAG_h) xprintf("</pre>\n"); + if (FLAG(h)) xprintf("</pre>\n"); } - if (toys.optflags & FLAG_h) xprintf("</html>"); + if (FLAG(h)) xprintf("</html>"); } |