| /* 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 |
| |
| #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 ยง6.5.2.5, 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)) |