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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include <inttypes.h>
#include <net/if.h>
#include <stdbool.h>
#include "cgroup-util.h"
#include "macro.h"
assert_cc(sizeof(pid_t) == sizeof(int32_t));
#define PID_PRI PRIi32
#define PID_FMT "%" PID_PRI
assert_cc(sizeof(uid_t) == sizeof(uint32_t));
#define UID_FMT "%" PRIu32
assert_cc(sizeof(gid_t) == sizeof(uint32_t));
#define GID_FMT "%" PRIu32
/* Note: the lifetime of the compound literal is the immediately surrounding block,
* see C11 §6.5.2.5, and
* https://stackoverflow.com/questions/34880638/compound-literal-lifetime-and-if-blocks */
#define FORMAT_UID(uid) \
snprintf_ok((char[DECIMAL_STR_MAX(uid_t)]){}, DECIMAL_STR_MAX(uid_t), UID_FMT, uid)
#define FORMAT_GID(gid) \
snprintf_ok((char[DECIMAL_STR_MAX(gid_t)]){}, DECIMAL_STR_MAX(gid_t), GID_FMT, gid)
#if SIZEOF_TIME_T == 8
# define PRI_TIME PRIi64
#elif SIZEOF_TIME_T == 4
# define PRI_TIME "li"
#else
# error Unknown time_t size
#endif
#if SIZEOF_TIMEX_MEMBER == 8
# define PRI_TIMEX PRIi64
#elif SIZEOF_TIMEX_MEMBER == 4
# define PRI_TIMEX "li"
#else
# error Unknown timex member size
#endif
#if SIZEOF_RLIM_T == 8
# define RLIM_FMT "%" PRIu64
#elif SIZEOF_RLIM_T == 4
# define RLIM_FMT "%" PRIu32
#else
# error Unknown rlim_t size
#endif
#if SIZEOF_DEV_T == 8
# define DEV_FMT "%" PRIu64
#elif SIZEOF_DEV_T == 4
# define DEV_FMT "%" PRIu32
#else
# error Unknown dev_t size
#endif
#if SIZEOF_INO_T == 8
# define INO_FMT "%" PRIu64
#elif SIZEOF_INO_T == 4
# define INO_FMT "%" PRIu32
#else
# error Unknown ino_t size
#endif
typedef enum {
FORMAT_IFNAME_IFINDEX = 1 << 0,
FORMAT_IFNAME_IFINDEX_WITH_PERCENT = (1 << 1) | FORMAT_IFNAME_IFINDEX,
} FormatIfnameFlag;
int format_ifname_full(int ifindex, FormatIfnameFlag flag, char buf[static IF_NAMESIZE]);
int format_ifname_full_alloc(int ifindex, FormatIfnameFlag flag, char **ret);
static inline int format_ifname(int ifindex, char buf[static IF_NAMESIZE]) {
return format_ifname_full(ifindex, 0, buf);
}
static inline int format_ifname_alloc(int ifindex, char **ret) {
return format_ifname_full_alloc(ifindex, 0, ret);
}
static inline char *_format_ifname_full(int ifindex, FormatIfnameFlag flag, char buf[static IF_NAMESIZE]) {
(void) format_ifname_full(ifindex, flag, buf);
return buf;
}
#define FORMAT_IFNAME_FULL(index, flag) _format_ifname_full(index, flag, (char[IF_NAMESIZE]){})
#define FORMAT_IFNAME(index) _format_ifname_full(index, 0, (char[IF_NAMESIZE]){})
typedef enum {
FORMAT_BYTES_USE_IEC = 1 << 0,
FORMAT_BYTES_BELOW_POINT = 1 << 1,
FORMAT_BYTES_TRAILING_B = 1 << 2,
} FormatBytesFlag;
#define FORMAT_BYTES_MAX 16U
char *format_bytes_full(char *buf, size_t l, uint64_t t, FormatBytesFlag flag) _warn_unused_result_;
_warn_unused_result_
static inline char *format_bytes(char *buf, size_t l, uint64_t t) {
return format_bytes_full(buf, l, t, FORMAT_BYTES_USE_IEC | FORMAT_BYTES_BELOW_POINT | FORMAT_BYTES_TRAILING_B);
}
/* Note: the lifetime of the compound literal is the immediately surrounding block,
* see C11 §6.5.2.5, and
* https://stackoverflow.com/questions/34880638/compound-literal-lifetime-and-if-blocks */
#define FORMAT_BYTES(t) format_bytes((char[FORMAT_BYTES_MAX]){}, FORMAT_BYTES_MAX, t)
#define FORMAT_BYTES_FULL(t, flag) format_bytes_full((char[FORMAT_BYTES_MAX]){}, FORMAT_BYTES_MAX, t, flag)
#define FORMAT_BYTES_CGROUP_PROTECTION(t) (t == CGROUP_LIMIT_MAX ? "infinity" : FORMAT_BYTES(t))
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