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basic: fold getopt-defs.h into proc-cmdline.c

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It'd be nice if we could not repeat the information about the option
list a second time. But I don't see a nice way to do this, since
(by design) with the macro approach, the macros must be intertwined
with the parse_argv() code. But that code in turn refers to a bunch
of variables, so lifting out the function is not immediately possible.
So I think it's best to keep the existing approach where we provide
a list of options, without additional context, and skip them using
a custom routine.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek
2026-05-15 09:26:48 +02:00
parent 63fc9f1696
commit 4bfdb3c62f
5 changed files with 52 additions and 94 deletions
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src/basic/proc-cmdline.c
+44 -16
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@@ -5,7 +5,6 @@
#include "alloc-util.h"
#include "extract-word.h"
#include "fileio.h"
#include "getopt-defs.h"
#include "initrd-util.h"
#include "log.h"
#include "parse-util.h"
@@ -15,18 +14,50 @@
#include "strv.h"
#include "virt.h"
typedef enum ArgType {
no_argument,
required_argument,
optional_argument,
} ArgType;
int proc_cmdline_filter_pid1_args(char **argv, char ***ret) {
enum {
COMMON_GETOPT_ARGS,
SYSTEMD_GETOPT_ARGS,
SHUTDOWN_GETOPT_ARGS,
const struct {
const char *name;
ArgType has_arg;
} options[] = {
{ "log-level", required_argument },
{ "log-target", required_argument },
{ "log-color", optional_argument },
{ "log-location", optional_argument },
{ "log-time", optional_argument },
{ "unit", required_argument },
{ "system", no_argument, },
{ "user", no_argument, },
{ "test", no_argument, },
{ "no-pager", no_argument, },
{ "help", no_argument, },
{ "version", no_argument, },
{ "dump-configuration-items", no_argument, },
{ "dump-bus-properties", no_argument, },
{ "bus-introspect", required_argument },
{ "dump-core", optional_argument },
{ "crash-chvt", required_argument },
{ "crash-vt", required_argument },
{ "crash-shell", optional_argument },
{ "crash-reboot", optional_argument },
{ "crash-action", required_argument },
{ "confirm-spawn", optional_argument },
{ "show-status", optional_argument },
{ "deserialize", required_argument },
{ "switched-root", no_argument, },
{ "default-standard-output", required_argument },
{ "default-standard-error", required_argument },
{ "machine-id", required_argument },
{ "service-watchdogs", required_argument },
{ "exit-code", required_argument },
{ "timeout", required_argument },
};
static const struct option options[] = {
COMMON_GETOPT_OPTIONS,
SYSTEMD_GETOPT_OPTIONS,
SHUTDOWN_GETOPT_OPTIONS,
};
static const char *short_options = SYSTEMD_GETOPT_SHORT_OPTIONS;
const char *short_options = "hDbsz:";
_cleanup_strv_free_ char **filtered = NULL;
int state, r;
@@ -108,12 +139,10 @@ int proc_cmdline_filter_pid1_args(char **argv, char ***ret) {
}
int proc_cmdline(char **ret) {
const char *e;
assert(ret);
/* For testing purposes it is sometimes useful to be able to override what we consider /proc/cmdline to be */
e = secure_getenv("SYSTEMD_PROC_CMDLINE");
const char *e = secure_getenv("SYSTEMD_PROC_CMDLINE");
if (e)
return strdup_to(ret, e);
@@ -124,13 +153,12 @@ int proc_cmdline(char **ret) {
}
static int proc_cmdline_strv_internal(char ***ret, bool filter_pid1_args) {
const char *e;
int r;
assert(ret);
/* For testing purposes it is sometimes useful to be able to override what we consider /proc/cmdline to be */
e = secure_getenv("SYSTEMD_PROC_CMDLINE");
const char *e = secure_getenv("SYSTEMD_PROC_CMDLINE");
if (e)
return strv_split_full(ret, e, NULL, EXTRACT_UNQUOTE|EXTRACT_RELAX|EXTRACT_RETAIN_ESCAPE);