mirror of
https://github.com/pygos/init.git
synced 2024-05-07 22:36:15 +02:00
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
|
#ifndef UTIL_H
|
||
|
#define UTIL_H
|
||
|
|
||
|
#include <sys/types.h>
|
||
|
#include <stdbool.h>
|
||
|
#include <stddef.h>
|
||
|
|
||
|
#include "config.h"
|
||
|
|
||
|
#ifdef __GNUC__
|
||
|
#define NORETURN __attribute__((noreturn))
|
||
|
#endif
|
||
|
|
||
|
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
|
||
|
|
||
|
typedef struct {
|
||
|
const char *name;
|
||
|
int value;
|
||
|
} enum_map_t;
|
||
|
|
||
|
|
||
|
/*
|
||
|
Read from fd until end-of-file or a line feed is encountered.
|
||
|
|
||
|
Returns NULL with errno set on failure. Returns NULL with errno
|
||
|
cleared if end-of-file is reached.
|
||
|
|
||
|
The line must be deallocated with free().
|
||
|
*/
|
||
|
char *rdline(int fd);
|
||
|
|
||
|
/*
|
||
|
Split a line of the shape "key = value" into key and value part.
|
||
|
|
||
|
The key can contain alphanumeric characters and can be padded with
|
||
|
spaces or tabs.
|
||
|
|
||
|
The value can be either a sequence of alphanumeric characters, period
|
||
|
or underscore OR a string in quotation marks. For strings, the
|
||
|
quotation marks are removed and escape sequences are processed.
|
||
|
|
||
|
The value may also be padded with spaces or tabs but the line may not
|
||
|
contain anything else after the value, except for spaces, tabs or
|
||
|
the '#' symbol which is interpreted as start of a comment.
|
||
|
*/
|
||
|
int splitkv(char *line, char **key, char **value);
|
||
|
|
||
|
/*
|
||
|
Search through an array of enum_map_t entries to resolve a string to
|
||
|
a numeric value. The end of the map is indicated by a sentinel entry
|
||
|
with the name set to NULL.
|
||
|
*/
|
||
|
const enum_map_t *enum_by_name(const enum_map_t *map, const char *name);
|
||
|
|
||
|
char *strexpand(const char *inp, size_t argc, const char *const *argv);
|
||
|
|
||
|
#endif /* UTIL_H */
|
||
|
|