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authorIsaac Dunham <ibid.ag@gmail.com>2014-04-12 17:26:44 -0500
committerIsaac Dunham <ibid.ag@gmail.com>2014-04-12 17:26:44 -0500
commit931425ca05b93348dd497598af077d16cdc1cd3c (patch)
tree1c5d8a9c9cf0d9953b8d74077b762e1d87b6fdf0 /toys/other/hello.c
parent669f332aafe1afdbbfbe4b7c1c8fdab6fa2cec1d (diff)
downloadtoybox-931425ca05b93348dd497598af077d16cdc1cd3c.tar.gz
roadmap: describe glibc commands.
Some glibc commands are irrelevant because they're for functionality that is excluded from musl (mtrace, rpc*, localedef, iconvconfig, nscd). getconf and catchsegv look like candidates for the development toolchain; locale and iconv were already triaged. getent is pretty lame, but it and the timezone stuff (tzselect zic zdump) are the only new possibly interesting commands.
Diffstat (limited to 'toys/other/hello.c')
-rw-r--r--toys/other/hello.c56
1 files changed, 42 insertions, 14 deletions
diff --git a/toys/other/hello.c b/toys/other/hello.c
index eb80972e..b909ed53 100644
--- a/toys/other/hello.c
+++ b/toys/other/hello.c
@@ -8,17 +8,28 @@
// Accept many different kinds of command line argument:
USE_HELLO(NEWTOY(hello, "(walrus)(blubber):;(also):e@d*c#b:a", TOYFLAG_USR|TOYFLAG_BIN))
+USE_HELLO_ALIAS(NEWTOY(hello_alias, "b:dq", TOYFLAG_USR|TOYFLAG_BIN))
config HELLO
bool "hello"
default n
help
- usage: hello [-a] [-b string] [-c number] [-d list] [-e count] [...]
+ 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".
+
+config HELLO_ALIAS
+ bool "hello_alias"
+ default n
+ depends on HELLO
+ help
+ usage: hello_alias [-dq] [-b NUMBER]
+
+ Example of a second command with different arguments in the same source
+ file as the first. Allows shared infrastructure not added to lib.
*/
#define FOR_hello
@@ -27,12 +38,19 @@ config HELLO
// Hello doesn't use these globals, they're here for example/skeleton purposes.
GLOBALS(
- char *b_string;
- long c_number;
- struct arg_list *d_list;
- long e_count;
- char *also_string;
- char *blubber_string;
+ union {
+ struct {
+ char *b_string;
+ long c_number;
+ struct arg_list *d_list;
+ long e_count;
+ char *also_string;
+ char *blubber_string;
+ } h;
+ struct {
+ long b_number;
+ } a;
+ };
int more_globals;
)
@@ -47,15 +65,25 @@ void hello_main(void)
if (toys.optflags) printf("flags=%x\n", toys.optflags);
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 (toys.optflags & FLAG_b) printf("b=%s\n", TT.h.b_string);
+ if (toys.optflags & FLAG_c) printf("c=%ld\n", TT.h.c_number);
+ while (TT.h.d_list) {
+ printf("d=%s\n", TT.h.d_list->arg);
+ TT.h.d_list = TT.h.d_list->next;
}
- if (TT.e_count) printf("e was seen %ld times\n", TT.e_count);
+ if (TT.h.e_count) printf("e was seen %ld times\n", TT.h.e_count);
for (optargs = toys.optargs; *optargs; optargs++)
printf("optarg=%s\n", *optargs);
if (toys.optflags & FLAG_walrus) printf("Saw --walrus\n");
- if (TT.blubber_string) printf("--blubber=%s\n", TT.blubber_string);
+ if (TT.h.blubber_string) printf("--blubber=%s\n", TT.h.blubber_string);
+}
+
+#define CLEANUP_hello
+#define FOR_hello_alias
+#include "generated/flags.h"
+
+void hello_alias_main(void)
+{
+ printf("hello world %x\n", toys.optflags);
+ if (toys.optflags & FLAG_b) printf("b=%ld", TT.a.b_number);
}