11a1589223
Files which are installed as-is (any .service and other unit files, .conf files, .policy files, etc), are left as is. My assumption is that SPDX identifiers are not yet that well known, so it's better to retain the extended header to avoid any doubt. I also kept any copyright lines. We can probably remove them, but it'd nice to obtain explicit acks from all involved authors before doing that.
59 lines
1.2 KiB
C
59 lines
1.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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This file is part of systemd.
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Copyright 2015 Lennart Poettering
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***/
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#include <errno.h>
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#include "alloc-util.h"
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#include "macro.h"
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#include "parse-util.h"
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#include "proc-cmdline.h"
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#include "string-util.h"
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#include "volatile-util.h"
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VolatileMode volatile_mode_from_string(const char *s) {
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int b;
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if (isempty(s))
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return _VOLATILE_MODE_INVALID;
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b = parse_boolean(s);
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if (b > 0)
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return VOLATILE_YES;
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if (b == 0)
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return VOLATILE_NO;
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if (streq(s, "state"))
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return VOLATILE_STATE;
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return _VOLATILE_MODE_INVALID;
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}
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int query_volatile_mode(VolatileMode *ret) {
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_cleanup_free_ char *mode = NULL;
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VolatileMode m = VOLATILE_NO;
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int r;
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r = proc_cmdline_get_key("systemd.volatile", PROC_CMDLINE_VALUE_OPTIONAL, &mode);
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if (r < 0)
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return r;
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if (r == 0)
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goto finish;
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if (mode) {
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m = volatile_mode_from_string(mode);
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if (m < 0)
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return -EINVAL;
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} else
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m = VOLATILE_YES;
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r = 1;
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finish:
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*ret = m;
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return r;
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}
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