src/basic/proc-cmdline.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include <stdbool.h>
   5
   6 #include "log.h"
   7
   8 enum {
   9         PROC_CMDLINE_STRIP_RD_PREFIX = 1,
  10         PROC_CMDLINE_VALUE_OPTIONAL = 2,
  11 };
  12
  13 typedef int (*proc_cmdline_parse_t)(const char *key, const char *value, void *data);
  14
  15 int proc_cmdline(char **ret);
  16
  17 int proc_cmdline_parse(const proc_cmdline_parse_t parse, void *userdata, unsigned flags);
  18
  19 int proc_cmdline_get_key(const char *parameter, unsigned flags, char **value);
  20 int proc_cmdline_get_bool(const char *key, bool *ret);
  21
  22 char *proc_cmdline_key_startswith(const char *s, const char *prefix);
  23 bool proc_cmdline_key_streq(const char *x, const char *y);
  24
  25 int shall_restore_state(void);
  26 const char* runlevel_to_target(const char *rl);
  27
  28 /* A little helper call, to be used in proc_cmdline_parse_t callbacks */
  29 static inline bool proc_cmdline_value_missing(const char *key, const char *value) {
  30         if (!value) {
  31                 log_warning("Missing argument for %s= kernel command line switch, ignoring.", key);
  32                 return true;
  33         }
  34
  35         return false;
  36 }