sysdecode_enum(3)

NAME
sysdecode_enum, sysdecode_acltype, sysdecode_atfd, sysdecode_extattrnamespace, sysdecode_fadvice, sysdecode_fcntl_cmd, sysdecode_getfsstat_mode, sysdecode_getrusage_who, sysdecode_idtype, sysdecode_ipproto, sysdecode_kldsym_cmd, sysdecode_kldunload_flags, sysdecode_lio_listio_mode, sysdecode_madvice, sysdecode_minherit_flags, sysdecode_msgctl_cmd, sysdecode_nfssvc_flags, sysdecode_pathconf_name, sysdecode_prio_which, sysdecode_procctl_cmd, sysdecode_ptrace_request, sysdecode_rlimit, sysdecode_rtprio_function, sysdecode_scheduler_policy, sysdecode_sctp_pr_policy, sysdecode_sctp_sinfo_flags, sysdecode_semctl_cmd, sysdecode_shmctl_cmd, sysdecode_shutdown_how, sysdecode_sigbus_code, sysdecode_sigchld_code, sysdecode_sigfpe_code, sysdecode_sigill_code, sysdecode_signal, sysdecode_sigprocmask_how, sysdecode_sigsegv_code, sysdecode_sigtrap_code, sysdecode_sockaddr_family, sysdecode_socketdomain, sysdecode_sockettype, sysdecode_sockopt_level, sysdecode_sysarch_number, sysdecode_umtx_op, sysdecode_vmresult, sysdecode_whence - lookup name of various enumerated values

LIBRARY
libsysdecode

SYNOPSIS
#include <sys/types.h>
#include <stdbool.h>
#include <sysdecode.h>
const char *
sysdecode_acltype(int type);
const char *
sysdecode_atfd(int fd);
const char *
sysdecode_extattrnamespace(int namespace);
const char *
sysdecode_fadvice(int advice);
const char *
sysdecode_fcntl_cmd(int cmd);
const char *
sysdecode_getfsstat_mode(int mode);
const char *
sysdecode_getrusage_who(int who);
const char *
sysdecode_idtype(int idtype);
const char *
sysdecode_ipproto(int protocol);
const char *
sysdecode_kldsym_cmd(int cmd);
const char *
sysdecode_kldunload_flags(int flags);
const char *
sysdecode_lio_listio_mode(int mode);
const char *
sysdecode_madvice(int advice);
const char *
sysdecode_minherit_flags(int inherit);
const char *
sysdecode_msgctl_cmd(int cmd);
const char *
sysdecode_nfssvc_flags(int flags);
const char *
sysdecode_pathconf_name(int name);
const char *
sysdecode_prio_which(int which);
const char *
sysdecode_procctl_cmd(int cmd);
const char *
sysdecode_ptrace_request(int request);
const char *
sysdecode_rlimit(int resource);
const char *
sysdecode_rtprio_function(int function);
const char *
sysdecode_scheduler_policy(int policy);
const char *
sysdecode_sctp_pr_policy(int policy);
const char *
sysdecode_semctl_cmd(int cmd);
const char *
sysdecode_shmctl_cmd(int cmd);
const char *
sysdecode_shutdown_how(int how);
const char *
sysdecode_sigbus_code(int si_code);
const char *
sysdecode_sigchld_code(int si_code);
const char *
sysdecode_sigfpe_code(int si_code);
const char *
sysdecode_sigill_code(int si_code);
const char *
sysdecode_signal(int sig);
const char *
sysdecode_sigprocmask_how(int how);
const char *
sysdecode_sigsegv_code(int si_code);
const char *
sysdecode_sigtrap_code(int si_code);
const char *
sysdecode_sockaddr_family(int sa_family);
const char *
sysdecode_socketdomain(int domain);
const char *
sysdecode_sockettype(int type);
const char *
sysdecode_sockopt_level(int level);
const char *
sysdecode_sysarch_number(int number);
const char *
sysdecode_umtx_op(int op);
const char *
sysdecode_vmresult(int result);
const char *
sysdecode_whence(int whence);

DESCRIPTION
The sysdecode_enum functions return a text description of an integer value. The text description matches the name of a C macro with the same value as the sole function argument. NULL is returned if there is no matching C macro name.

Most of these functions decode an argument passed to a system call:
Function | System Call | Argument
sysdecode_acltype() | acl_get_file(3) | type
sysdecode_atfd() | openat(2) | fd
sysdecode_extattrnamespace() | extattr_get_fd(2) | attrnamespace
sysdecode_fadvice() | posix_fadvise(2) | advice
sysdecode_fcntl_cmd() | fcntl(2) | cmd
sysdecode_getfsstat_mode() | getfsstat(2) | mode
sysdecode_idtype() |
procctl(2), waitid(2) | idtype
sysdecode_kldsym_cmd() | kldsym(2) | cmd
sysdecode_kldunload_flags() | kldunloadf(2) | flags
sysdecode_lio_listio_mode() | lio_listio(2) | mode
sysdecode_madvice() | madvise(2) | advice
sysdecode_minherit_inherit() | minherit(2) | inherit
sysdecode_msgctl_cmd() | msgctl(2) | cmd
sysdecode_nfssvc_flags() | nfssvc(2) | flags
sysdecode_pathconf_name() | pathconf(2) | name
sysdecode_prio_which() | getpriority(2) | which
sysdecode_procctl_cmd() | procctl(2) | cmd
sysdecode_ptrace_request() | ptrace(2) | request
sysdecode_rlimit() | getrlimit(2) | resource
sysdecode_rtprio_function() | rtprio(2) | function
sysdecode_getrusage_who() | getrusage(2) | who
sysdecode_scheduler_policy() | sched_setscheduler(2) | policy
sysdecode_semctl_cmd() | semctl(2) | cmd
sysdecode_shmctl_cmd() | shmctl(2) | cmd
sysdecode_shutdown_how() | shutdown(2) | how
sysdecode_sigprocmask_how() | sigprocmask(2) | how
sysdecode_sockopt_level() | getsockopt(2) | level
sysdecode_sysarch_number() | sysarch(2) | number
sysdecode_umtx_op() | _umtx_op(2) | op
sysdecode_whence() | lseek(2) | whence

These functions decode signal-specific signal codes stored in the si_code field of the siginfo_t object associated with an instance of signal:
Function | Signal
sysdecode_sigbus_code() | SIGBUS
sysdecode_sigchld_code() | SIGCHLD
sysdecode_sigfpe_code() | SIGFPE
sysdecode_sigill_code() | SIGILL
sysdecode_sigsegv_code() | SIGSEGV
sysdecode_sigtrap_code() | SIGBTRAP

Other functions decode the values described below:

sysdecode_ipproto()
    An IP protocol.

sysdecode_sctp_pr_policy()
    A PR-SCTP policy.

sysdecode_signal()
    A process signal.

sysdecode_sockaddr_family()
    A socket address family.

sysdecode_socketdomain()
    A socket domain.

sysdecode_vmresult()
    The return value of a function in the virtual memory subsystem of the kernel indicating the status of the associated request.

RETURN VALUES
The sysdecode_enum functions return the name of a matching C macro or NULL if no matching C macro was found.

SEE ALSO
sysdecode(3), sysdecode_mask(3), sysdecode_sigcode(3)