| /* vi: set sw=4 ts=4: |
| * |
| * hello.c - A hello world program. |
| * |
| * Copyright 2012 Rob Landley <rob@landley.net> |
| * |
| * Not in SUSv4. |
| * See http://opengroup.org/onlinepubs/9699919799/utilities/ |
| |
| USE_HELLO(NEWTOY(hello, "e@d*c#b:a", TOYFLAG_USR|TOYFLAG_BIN)) |
| |
| config HELLO |
| bool "hello" |
| default n |
| help |
| usage: hello [-a] [-b string] [-c number] [-d list] [-e count] [...] |
| |
| A hello world program. You don't need this. |
| |
| Mostly used as an example/skeleton file for adding new commands, |
| occasionally nice to test kernel booting via "init=/bin/hello". |
| */ |
| |
| #include "toys.h" |
| |
| // Hello doesn't use these globals, they're here for example/skeleton purposes. |
| |
| DEFINE_GLOBALS( |
| char *b_string; |
| long c_number; |
| struct arg_list *d_list; |
| long e_count; |
| |
| int more_globals; |
| ) |
| |
| #define TT this.hello |
| |
| #define FLAG_a 1 |
| #define FLAG_b 2 |
| #define FLAG_c 4 |
| #define FLAG_d 8 |
| #define FLAG_e 16 |
| |
| void hello_main(void) |
| { |
| printf("Hello world\n"); |
| |
| if (toys.optflags & FLAG_a) printf("Saw a\n"); |
| if (toys.optflags & FLAG_b) printf("b=%s\n", TT.b_string); |
| if (toys.optflags & FLAG_c) printf("c=%ld\n", TT.c_number); |
| while (TT.d_list) { |
| printf("d=%s\n", TT.d_list->arg); |
| TT.d_list = TT.d_list->next; |
| } |
| if (TT.e_count) printf("e was seen %ld times", TT.e_count); |
| |
| while (*toys.optargs) printf("optarg=%s\n", *(toys.optargs++)); |
| } |