10.3. Data Definitions for libc

This section defines global identifiers and their values that are associated with interfaces contained in libc. These definitions are organized into groups that correspond to system headers. This convention is used as a convenience for the reader, and does not imply the existence of these headers, or their content. Where an interface is defined as requiring a particular system header file all of the data definitions for that system header file presented here shall be in effect.

This section gives data definitions to promote binary application portability, not to repeat source interface definitions available elsewhere. System providers and application developers should use this ABI to supplement - not to replace - source interface definition specifications.

This specification uses the ISO C (1999) C Language as the reference programming language, and data definitions are specified in ISO C format. The C language is used here as a convenient notation. Using a C language description of these data objects does not preclude their use by other programming languages.

10.3.1. argz.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.2. assert.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.3. cpio.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.4. ctype.h


enum {
    _ISupper = 1,
    _ISlower = 2,
    _ISalpha = 4,
    _ISdigit = 8,
    _ISxdigit = 16,
    _ISspace = 32,
    _ISprint = 64,
    _ISgraph = 128,
    _ISblank = 256,
    _IScntrl = 512,
    _ISpunct = 1024,
    _ISalnum = 2048
};

10.3.5. dirent.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.6. elf.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.7. endian.h


#define __BYTE_ORDER	__BIG_ENDIAN

10.3.8. errno.h


#define EDEADLOCK	35

10.3.9. fcntl.h


#define O_LARGEFILE	0
#define O_DIRECTORY	0200000
#define O_NOFOLLOW	0400000
#define POSIX_FADV_DONTNEED	6
#define POSIX_FADV_NOREUSE	7

#define F_GETLK64	5
#define F_SETLK64	6
#define F_SETLKW64	7

10.3.10. fmtmsg.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.11. fnmatch.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.12. ftw.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.13. getopt.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.14. glob.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.15. iconv.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.16. ifaddrs.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.17. inttypes.h


#define __PRI64_PREFIX	"l"
#define __PRIPTR_PREFIX	"l"

typedef ldiv_t imaxdiv_t;

10.3.18. langinfo.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.19. limits.h


#define ULONG_MAX	0xFFFFFFFFFFFFFFFFUL
#define LONG_BIT	64
#define LONG_MAX	9223372036854775807L

#define CHAR_MIN	0
#define CHAR_MAX	255

#define PTHREAD_STACK_MIN	16384

10.3.20. link.h


struct dl_phdr_info {
    Elf64_Addr dlpi_addr;
    const char *dlpi_name;
    const Elf64_Phdr *dlpi_phdr;
    Elf64_Half dlpi_phnum;
    unsigned long long int dlpi_adds;
    unsigned long long int dlpi_subs;
    size_t dlpi_tls_modid;
    void *dlpi_tls_data;
};

10.3.21. locale.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.22. lsb/time.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.23. lsb/types.h


typedef int64_t ssize_t;

10.3.24. lsb/wchar.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.25. net/if.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.26. netdb.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.27. netinet/icmp6.h


#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN	0x1000
#define ICMP6_RR_RESULT_FLAGS_OOB	0x2000
#define ND_NA_FLAG_OVERRIDE	0x20000000
#define ND_NA_FLAG_SOLICITED	0x40000000
#define ND_NA_FLAG_ROUTER	0x80000000

10.3.28. netinet/igmp.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.29. netinet/in.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.30. netinet/in_systm.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.31. netinet/ip.h


struct timestamp {
    u_int8_t len;
    u_int8_t ptr;
    unsigned int overflow:4;
    unsigned int flags:4;
    u_int32_t data[9];
};
struct iphdr {
    unsigned int version:4;
    unsigned int ihl:4;
    u_int8_t tos;
    u_int16_t tot_len;
    u_int16_t id;
    u_int16_t frag_off;
    u_int8_t ttl;
    u_int8_t protocol;
    u_int16_t check;
    u_int32_t saddr;
    u_int32_t daddr;
};
struct ip {
    unsigned int ip_v:4;
    unsigned int ip_hl:4;
    u_int8_t ip_tos;
    u_short ip_len;
    u_short ip_id;
    u_short ip_off;
    u_int8_t ip_ttl;
    u_int8_t ip_p;
    u_short ip_sum;
    struct in_addr ip_src;
    struct in_addr ip_dst;
};
struct ip_timestamp {
    u_int8_t ipt_len;
    u_int8_t ipt_code;
    u_int8_t ipt_ptr;
    unsigned int ipt_flg:4;
    unsigned int ipt_oflw:4;
    u_int32_t data[9];
};

10.3.32. netinet/ip6.h


#define IP6_ALERT_MLD	0x0000
#define IP6F_MORE_FRAG	0x0001
#define IP6_ALERT_RSVP	0x0001
#define IP6_ALERT_AN	0x0002
#define IP6F_RESERVED_MASK	0x0006
#define IP6F_OFF_MASK	0xfff8

10.3.33. netinet/ip_icmp.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.34. netinet/tcp.h


struct tcphdr {
    uint16_t source;
    uint16_t dest;
    uint32_t seq;
    uint32_t ack_seq;
    uint16_t doff:4;
    uint16_t res1:4;
    uint16_t res2:2;
    uint16_t urg:1;
    uint16_t ack:1;
    uint16_t psh:1;
    uint16_t rst:1;
    uint16_t syn:1;
    uint16_t fin:1;
    uint16_t window;
    uint16_t check;
    uint16_t urg_ptr;
};

10.3.35. netinet/udp.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.36. nl_types.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.37. pwd.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.38. regex.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.39. rpc/auth.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.40. rpc/clnt.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.41. rpc/rpc_msg.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.42. rpc/svc.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.43. rpc/types.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.44. rpc/xdr.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.45. sched.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.46. search.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.47. setjmp.h


typedef long int __jmp_buf[18];

10.3.48. signal.h


#define __NUM_ACRS	16
#define __NUM_FPRS	16
#define __NUM_GPRS	16

typedef struct {
    unsigned long int mask;
    unsigned long int addr;
} __attribute__ ((aligned(8))) _psw_t;
typedef struct {
    _psw_t psw;
    unsigned long int gprs[16];
    unsigned int acrs[16];
} _s390_regs_common;

#define SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE/sizeof(int))-4)

#define SI_PAD_SIZE	((SI_MAX_SIZE/sizeof(int))-4)

struct sigaction {
    union {
	sighandler_t _sa_handler;
	void (*_sa_sigaction) (int, siginfo_t *, void *);
    } __sigaction_handler;
    unsigned long int sa_flags;
    void (*sa_restorer) (void);
    sigset_t sa_mask;
};

#define MINSIGSTKSZ	2048	/* Minimum stack size for a signal handler. */
#define SIGSTKSZ	8192	/* System default stack size. */

typedef struct {
    unsigned int fpc;
    double fprs[__NUM_FPRS];
} _s390_fp_regs;
typedef struct {
    _s390_regs_common regs;
    _s390_fp_regs fpregs;
} _sigregs;

struct sigcontext {
    unsigned long int oldmask;
    _sigregs *sregs;
};

10.3.49. spawn.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.50. stddef.h


typedef int wchar_t;
typedef unsigned long int size_t;
typedef long int ptrdiff_t;

10.3.51. stdint.h


#define INT64_C(c)	c ## L
#define INTMAX_C(c)	c ## L
#define __INT64_C(c)	c ## L
#define UINT64_C(c)	c ## UL
#define UINTMAX_C(c)	c ## UL
#define __UINT64_C(c)	c ## UL

#define INTPTR_MIN	(-9223372036854775807L-1)
#define INT_FAST16_MIN	(-9223372036854775807L-1)
#define INT_FAST32_MIN	(-9223372036854775807L-1)
#define PTRDIFF_MIN	(-9223372036854775807L-1)
#define SIZE_MAX	(18446744073709551615UL)
#define UINTPTR_MAX	(18446744073709551615UL)
#define UINT_FAST16_MAX	(18446744073709551615UL)
#define UINT_FAST32_MAX	(18446744073709551615UL)
#define INTPTR_MAX	(9223372036854775807L)
#define INT_FAST16_MAX	(9223372036854775807L)
#define INT_FAST32_MAX	(9223372036854775807L)
#define PTRDIFF_MAX	(9223372036854775807L)

typedef long int int64_t;
typedef long int intmax_t;
typedef unsigned long int uintmax_t;
typedef long int intptr_t;
typedef unsigned long int uintptr_t;
typedef unsigned long int uint64_t;
typedef long int int_least64_t;
typedef unsigned long int uint_least64_t;
typedef long int int_fast16_t;
typedef long int int_fast32_t;
typedef long int int_fast64_t;
typedef unsigned long int uint_fast16_t;
typedef unsigned long int uint_fast32_t;
typedef unsigned long int uint_fast64_t;

10.3.52. stdio.h


#define __IO_FILE_SIZE	216

10.3.53. stdlib.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.54. string.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.55. sys/epoll.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.56. sys/file.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.57. sys/inotify.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.58. sys/ioctl.h


#define TIOCGWINSZ	0x5413
#define TIOCSWINSZ	0x5414
#define FIONREAD	21531
#define TIOCNOTTY	21538

10.3.59. sys/ipc.h


struct ipc_perm {
    key_t __key;
    uid_t uid;
    gid_t gid;
    uid_t cuid;
    gid_t cgid;
    mode_t mode;
    unsigned short __seq;
    unsigned short __pad2;
    unsigned long int __unused1;
    unsigned long int __unused2;
};

10.3.60. sys/mman.h


#define MCL_CURRENT	1
#define MCL_FUTURE	2

10.3.61. sys/msg.h


typedef unsigned long int msgqnum_t;
typedef unsigned long int msglen_t;

struct msqid_ds {
    struct ipc_perm msg_perm;
    time_t msg_stime;
    time_t msg_rtime;
    time_t msg_ctime;
    unsigned long int __msg_cbytes;
    msgqnum_t msg_qnum;
    msglen_t msg_qbytes;
    pid_t msg_lspid;
    pid_t msg_lrpid;
    unsigned long int __unused4;
    unsigned long int __unused5;
};

10.3.62. sys/param.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.63. sys/poll.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.64. sys/ptrace.h


enum __ptrace_request {
    PTRACE_TRACEME = 0,
    PTRACE_PEEKTEXT = 1,
    PTRACE_PEEKDATA = 2,
    PTRACE_PEEKUSER = 3,
    PTRACE_POKETEXT = 4,
    PTRACE_POKEDATA = 5,
    PTRACE_POKEUSER = 6,
    PTRACE_CONT = 7,
    PTRACE_KILL = 8,
    PTRACE_SINGLESTEP = 9,
    PTRACE_ATTACH = 16,
    PTRACE_DETACH = 17,
    PTRACE_SYSCALL = 24,
    PTRACE_SETOPTIONS = 0x4200,
    PTRACE_GETEVENTMSG = 0x4201,
    PTRACE_GETSIGINFO = 0x4202,
    PTRACE_SETSIGINFO = 0x4203
};

10.3.65. sys/resource.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.66. sys/select.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.67. sys/sem.h


struct semid_ds {
    struct ipc_perm sem_perm;
    time_t sem_otime;
    time_t sem_ctime;
    unsigned long int sem_nsems;
    unsigned long int __unused3;
    unsigned long int __unused4;
};

10.3.68. sys/shm.h


#define SHMLBA	(__getpagesize())

typedef unsigned long int shmatt_t;

struct shmid_ds {
    struct ipc_perm shm_perm;
    size_t shm_segsz;
    time_t shm_atime;
    time_t shm_dtime;
    time_t shm_ctime;
    pid_t shm_cpid;
    pid_t shm_lpid;
    shmatt_t shm_nattch;
    unsigned long int __unused4;
    unsigned long int __unused5;
};

10.3.69. sys/socket.h


typedef uint64_t __ss_aligntype;

#define SO_RCVLOWAT	18
#define SO_SNDLOWAT	19
#define SO_RCVTIMEO	20
#define SO_SNDTIMEO	21

10.3.70. sys/stat.h


#define _MKNOD_VER	0
#define _STAT_VER	1

struct stat {
    dev_t st_dev;
    ino_t st_ino;
    nlink_t st_nlink;
    mode_t st_mode;
    uid_t st_uid;
    gid_t st_gid;
    int pad0;
    dev_t st_rdev;
    off_t st_size;
    struct timespec st_atim;	/* Time of last access. */
    struct timespec st_mtim;	/* Time of last modification. */
    struct timespec st_ctim;	/* Time of last status change. */
    blksize_t st_blksize;
    blkcnt_t st_blocks;
    long int __unused[3];
};
struct stat64 {
    dev_t st_dev;
    ino64_t st_ino;
    nlink_t st_nlink;
    mode_t st_mode;
    uid_t st_uid;
    gid_t st_gid;
    int pad0;
    dev_t st_rdev;
    off_t st_size;
    struct timespec st_atim;	/* Time of last access. */
    struct timespec st_mtim;	/* Time of last modification. */
    struct timespec st_ctim;	/* Time of last status change. */
    blksize_t st_blksize;
    blkcnt64_t st_blocks;
    long int __unused[3];
};

10.3.71. sys/statfs.h


struct statfs {
    int f_type;			/* type of filesystem */
    int f_bsize;		/* optimal transfer block size */
    fsblkcnt_t f_blocks;	/* total data blocks in file system */
    fsblkcnt_t f_bfree;		/* free blocks in fs */
    fsblkcnt_t f_bavail;	/* free blocks avail to non-superuser */
    fsfilcnt_t f_files;		/* total file nodes in file system */
    fsfilcnt_t f_ffree;		/* free file nodes in file system */
    fsid_t f_fsid;		/* file system id */
    int f_namelen;		/* maximum length of filenames */
    int f_frsize;		/* fragment size */
    int f_spare[5];		/* spare for later */
};
struct statfs64 {
    int f_type;			/* type of filesystem */
    int f_bsize;		/* optimal transfer block size */
    fsblkcnt64_t f_blocks;	/* total data blocks in file system */
    fsblkcnt64_t f_bfree;	/* free blocks in fs */
    fsblkcnt64_t f_bavail;	/* free blocks avail to non-superuser */
    fsfilcnt64_t f_files;	/* total file nodes in file system */
    fsfilcnt64_t f_ffree;	/* free file nodes in file system */
    fsid_t f_fsid;		/* file system id */
    int f_namelen;		/* maximum length of filenames */
    int f_frsize;		/* fragment size */
    int f_spare[5];		/* spare for later */
};

10.3.72. sys/statvfs.h


struct statvfs {
    unsigned long int f_bsize;
    unsigned long int f_frsize;
    fsblkcnt64_t f_blocks;
    fsblkcnt64_t f_bfree;
    fsblkcnt64_t f_bavail;
    fsfilcnt64_t f_files;
    fsfilcnt64_t f_ffree;
    fsfilcnt64_t f_favail;
    unsigned long int f_fsid;
    unsigned long int f_flag;
    unsigned long int f_namemax;
    int __f_spare[6];
};
struct statvfs64 {
    unsigned long int f_bsize;
    unsigned long int f_frsize;
    fsblkcnt64_t f_blocks;
    fsblkcnt64_t f_bfree;
    fsblkcnt64_t f_bavail;
    fsfilcnt64_t f_files;
    fsfilcnt64_t f_ffree;
    fsfilcnt64_t f_favail;
    unsigned long int f_fsid;
    unsigned long int f_flag;
    unsigned long int f_namemax;
    int __f_spare[6];
};

10.3.73. sys/sysinfo.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.74. sys/time.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.75. sys/timeb.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.76. sys/times.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.77. sys/un.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.78. sys/utsname.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.79. sys/wait.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.80. sysexits.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.81. syslog.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.82. tar.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.83. termios.h


#define CR2	1024
#define CR3	1536
#define CRDLY	1536
#define VT1	16384
#define VTDLY	16384
#define OLCUC	2
#define TAB1	2048
#define NLDLY	256
#define FF1	32768
#define FFDLY	32768
#define ONLCR	4
#define XCASE	4
#define TAB2	4096
#define CR1	512
#define IUCLC	512
#define TAB3	6144
#define TABDLY	6144
#define BS1	8192
#define BSDLY	8192

#define VSUSP	10
#define VEOL	11
#define VREPRINT	12
#define VDISCARD	13
#define VWERASE	14
#define VEOL2	16
#define VMIN	6
#define VSWTC	7
#define VSTART	8
#define VSTOP	9

#define IXON	1024
#define IXOFF	4096

#define HUPCL	1024
#define CREAD	128
#define CS6	16
#define CLOCAL	2048
#define PARENB	256
#define CS7	32
#define CS8	48
#define CSIZE	48
#define VTIME	5
#define PARODD	512
#define CSTOPB	64

#define ISIG	1
#define ECHOPRT	1024
#define NOFLSH	128
#define ECHOE	16
#define PENDIN	16384
#define ICANON	2
#define ECHOKE	2048
#define TOSTOP	256
#define ECHOK	32
#define IEXTEN	32768
#define FLUSHO	4096
#define ECHOCTL	512
#define ECHONL	64

10.3.84. time.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.85. ucontext.h


#define NGREG	27

typedef union {
    double d;
    float f;
} fpreg_t;

typedef struct {
    unsigned int fpc;
    fpreg_t fprs[16];
} fpregset_t;

typedef struct {
    _psw_t psw;
    unsigned long int gregs[16];
    unsigned int aregs[16];
    fpregset_t fpregs;
} mcontext_t;

typedef struct ucontext {
    unsigned long int uc_flags;
    struct ucontext *uc_link;
    stack_t uc_stack;
    mcontext_t uc_mcontext;
    sigset_t uc_sigmask;
} ucontext_t;

10.3.86. ulimit.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.87. unistd.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.88. utime.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */

10.3.89. utmp.h


struct lastlog {
    time_t ll_time;
    char ll_line[UT_LINESIZE];
    char ll_host[UT_HOSTSIZE];
};

struct utmp {
    short ut_type;		/* Type of login. */
    pid_t ut_pid;		/* Process ID of login process. */
    char ut_line[UT_LINESIZE];	/* Devicename. */
    char ut_id[4];		/* Inittab ID. */
    char ut_user[UT_NAMESIZE];	/* Username. */
    char ut_host[UT_HOSTSIZE];	/* Hostname for remote login. */
    struct exit_status ut_exit;	/* Exit status of a process marked as DEAD_PROCESS. */
    long int ut_session;	/* Session ID, used for windowing. */
    struct timeval ut_tv;	/* Time entry was made. */
    int32_t ut_addr_v6[4];	/* Internet address of remote host. */
    char __unused[20];		/* Reserved for future use. */
};

10.3.90. utmpx.h


struct utmpx {
    short ut_type;		/* Type of login. */
    pid_t ut_pid;		/* Process ID of login process. */
    char ut_line[UT_LINESIZE];	/* Devicename. */
    char ut_id[4];		/* Inittab ID. */
    char ut_user[UT_NAMESIZE];	/* Username. */
    char ut_host[UT_HOSTSIZE];	/* Hostname for remote login. */
    struct exit_status ut_exit;	/* Exit status of a process marked as DEAD_PROCESS. */
    long int ut_session;	/* Session ID, used for windowing. */
    struct timeval ut_tv;	/* Time entry was made. */
    int32_t ut_addr_v6[4];	/* Internet address of remote host. */
    char __unused[20];		/* Reserved for future use. */
};

10.3.91. wordexp.h


/*
 * This header is architecture neutral
 * Please refer to the generic specification for details
 */