void log_parse_environment(void) {
const char *e;
if ((e = getenv("DRACUT_LOG_TARGET")))
if (log_set_target_from_string(e) < 0)
log_warning("Failed to parse log target %s. Ignoring.", e);
if ((e = getenv("DRACUT_LOG_LEVEL")))
if (log_set_max_level_from_string(e) < 0)
log_warning("Failed to parse log level %s. Ignoring.", e);
}
static int parse_argv(int argc, char *argv[]) {
enum {
ARG_LOG_LEVEL = 0x100,
ARG_LOG_TARGET,
ARG_LOG_COLOR,
ARG_LOG_LOCATION,
ARG_EXIT_CODE,
};
static const struct option options[] = {
{ "log-level", required_argument, NULL, ARG_LOG_LEVEL },
{ "log-target", required_argument, NULL, ARG_LOG_TARGET },
{ "log-color", optional_argument, NULL, ARG_LOG_COLOR },
{ "log-location", optional_argument, NULL, ARG_LOG_LOCATION },
{ "exit-code", required_argument, NULL, ARG_EXIT_CODE },
{}
};
int c, r;
assert(argc >= 1);
assert(argv);
/* "-" prevents getopt from permuting argv[] and moving the verb away
* from argv[1]. Our interface to initrd promises it'll be there. */
while ((c = getopt_long(argc, argv, "-", options, NULL)) >= 0)
switch (c) {
case ARG_LOG_LEVEL:
r = log_set_max_level_from_string(optarg);
if (r < 0)
log_error("Failed to parse log level %s, ignoring.", optarg);
break;
case ARG_LOG_TARGET:
r = log_set_target_from_string(optarg);
if (r < 0)
log_error("Failed to parse log target %s, ignoring", optarg);
break;
case ARG_LOG_COLOR:
if (optarg) {
r = log_show_color_from_string(optarg);
if (r < 0)
log_error("Failed to parse log color setting %s, ignoring", optarg);
} else
log_show_color(true);
break;
case ARG_LOG_LOCATION:
if (optarg) {
r = log_show_location_from_string(optarg);
if (r < 0)
log_error("Failed to parse log location setting %s, ignoring", optarg);
} else
log_show_location(true);
break;
case ARG_EXIT_CODE:
r = safe_atou8(optarg, &arg_exit_code);
if (r < 0)
log_error("Failed to parse exit code %s, ignoring", optarg);
break;
case '\001':
if (!arg_verb)
arg_verb = optarg;
else
log_error("Excess arguments, ignoring");
break;
case '?':
return -EINVAL;
default:
assert_not_reached("Unhandled option code.");
}
if (!arg_verb) {
log_error("Verb argument missing.");
return -EINVAL;
}
return 0;
}
static int parse_argv(int argc, char *argv[]) {
enum {
ARG_LOG_LEVEL = 0x100,
ARG_LOG_TARGET,
ARG_LOG_COLOR,
ARG_LOG_LOCATION,
};
static const struct option options[] = {
{ "log-level", required_argument, NULL, ARG_LOG_LEVEL },
{ "log-target", required_argument, NULL, ARG_LOG_TARGET },
{ "log-color", optional_argument, NULL, ARG_LOG_COLOR },
{ "log-location", optional_argument, NULL, ARG_LOG_LOCATION },
{}
};
int c, r;
assert(argc >= 1);
assert(argv);
while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0)
switch (c) {
case ARG_LOG_LEVEL:
r = log_set_max_level_from_string(optarg);
if (r < 0)
log_error("Failed to parse log level %s, ignoring.", optarg);
break;
case ARG_LOG_TARGET:
r = log_set_target_from_string(optarg);
if (r < 0)
log_error("Failed to parse log target %s, ignoring", optarg);
break;
case ARG_LOG_COLOR:
if (optarg) {
r = log_show_color_from_string(optarg);
if (r < 0)
log_error("Failed to parse log color setting %s, ignoring", optarg);
} else
log_show_color(true);
break;
case ARG_LOG_LOCATION:
if (optarg) {
r = log_show_location_from_string(optarg);
if (r < 0)
log_error("Failed to parse log location setting %s, ignoring", optarg);
} else
log_show_location(true);
break;
case '?':
return -EINVAL;
default:
assert_not_reached("Unhandled option code.");
}
if (optind >= argc) {
log_error("Verb argument missing.");
return -EINVAL;
}
arg_verb = argv[optind];
if (optind + 1 < argc)
log_error("Excess arguments, ignoring");
return 0;
}