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makefs: define main through macro

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This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2018-11-16 14:52:25 +01:00
parent aac0b2e8f3
commit fb1fa5a882
1 changed files with 14 additions and 19 deletions
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33
src/partition/makefs.c
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@ -42,7 +42,7 @@ static int makefs(const char *type, const char *device) {
return wait_for_terminate_and_check(mkfs, pid, WAIT_LOG);
}
int main(int argc, char *argv[]) {
static int run(int argc, char *argv[]) {
const char *device, *type;
_cleanup_free_ char *detected = NULL;
struct stat st;
@ -54,37 +54,32 @@ int main(int argc, char *argv[]) {
if (argc != 3) {
log_error("This program expects two arguments.");
return EXIT_FAILURE;
return -EINVAL;
}
type = argv[1];
device = argv[2];
if (stat(device, &st) < 0) {
r = log_error_errno(errno, "Failed to stat \"%s\": %m", device);
goto finish;
}
if (stat(device, &st) < 0)
return log_error_errno(errno, "Failed to stat \"%s\": %m", device);
if (!S_ISBLK(st.st_mode))
log_info("%s is not a block device.", device);
r = probe_filesystem(device, &detected);
if (r < 0) {
log_warning_errno(r,
r == -EUCLEAN ?
"Cannot reliably determine probe \"%s\", refusing to proceed." :
"Failed to probe \"%s\": %m",
device);
goto finish;
}
if (r < 0)
return log_warning_errno(r,
r == -EUCLEAN ?
"Cannot reliably determine probe \"%s\", refusing to proceed." :
"Failed to probe \"%s\": %m",
device);
if (detected) {
log_info("%s is not empty (type %s), exiting", device, detected);
goto finish;
return 0;
}
r = makefs(type, device);
finish:
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
return makefs(type, device);
}
DEFINE_MAIN_FUNCTION(run);