lagertonne/ifupdown-ng
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multicall: add stub applet like busybox has

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This commit is contained in:
Ariadne Conill 2020-07-24 03:23:41 -06:00
parent 1a9fd7a0cc
commit bc88e3fcd2
1 changed files with 39 additions and 1 deletions
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40
cmd/multicall.c
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@ -22,11 +22,13 @@
extern struct if_applet ifquery_applet; extern struct if_applet ifquery_applet;
extern struct if_applet ifup_applet; extern struct if_applet ifup_applet;
extern struct if_applet ifdown_applet; extern struct if_applet ifdown_applet;
struct if_applet ifupdown_applet;
struct if_applet *applet_table[] = { struct if_applet *applet_table[] = {
&ifdown_applet, &ifdown_applet,
&ifquery_applet, &ifquery_applet,
&ifup_applet, &ifup_applet,
&ifupdown_applet,
}; };
#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*x)) #define ARRAY_SIZE(x) (sizeof(x) / sizeof(*x))
@ -40,6 +42,8 @@ applet_cmp(const void *a, const void *b)
return strcmp(key, applet->name); return strcmp(key, applet->name);
} }
void multicall_usage(void);
int int
main(int argc, char *argv[]) main(int argc, char *argv[])
{ {
@ -53,8 +57,42 @@ main(int argc, char *argv[])
if (app == NULL) if (app == NULL)
{ {
fprintf(stderr, "%s: applet not found\n", argv0); fprintf(stderr, "%s: applet not found\n", argv0);
return EXIT_FAILURE; multicall_usage();
} }
return (*app)->main(argc, argv); return (*app)->main(argc, argv);
} }
int
multicall_main(int argc, char *argv[])
{
if (argc < 2)
multicall_usage();
return main(argc - 1, argv + 1);
}
void
multicall_usage(void)
{
fprintf(stderr, "usage: ifupdown <applet> [options]\n");
fprintf(stderr, "\nBuilt-in applets:\n\t");
for (size_t i = 0; i < ARRAY_SIZE(applet_table); i++)
{
if (i != 0)
fprintf(stderr, ", ");
fprintf(stderr, "%s", applet_table[i]->name);
}
fprintf(stderr, "\n");
exit(EXIT_FAILURE);
}
struct if_applet ifupdown_applet = {
.name = "ifupdown",
.main = multicall_main,
.usage = multicall_usage,
};