1.\" 2.\" Copyright (c) 2016 John Baldwin <jhb@FreeBSD.org> 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.Dd June 22, 2022 26.Dt sysdecode_enum 3 27.Os 28.Sh NAME 29.Nm sysdecode_enum , 30.Nm sysdecode_acltype , 31.Nm sysdecode_atfd , 32.Nm sysdecode_extattrnamespace , 33.Nm sysdecode_fadvice , 34.Nm sysdecode_fcntl_cmd , 35.Nm sysdecode_getfsstat_mode , 36.Nm sysdecode_getrusage_who , 37.Nm sysdecode_idtype , 38.Nm sysdecode_ipproto , 39.Nm sysdecode_itimer , 40.Nm sysdecode_kldsym_cmd , 41.Nm sysdecode_kldunload_flags , 42.Nm sysdecode_lio_listio_mode , 43.Nm sysdecode_madvice , 44.Nm sysdecode_minherit_flags , 45.Nm sysdecode_msgctl_cmd , 46.Nm sysdecode_nfssvc_flags , 47.Nm sysdecode_pathconf_name , 48.Nm sysdecode_prio_which , 49.Nm sysdecode_procctl_cmd , 50.Nm sysdecode_ptrace_request , 51.Nm sysdecode_rlimit , 52.Nm sysdecode_rtprio_function , 53.Nm sysdecode_scheduler_policy , 54.Nm sysdecode_sctp_pr_policy , 55.Nm sysdecode_sctp_sinfo_flags , 56.Nm sysdecode_semctl_cmd , 57.Nm sysdecode_shmctl_cmd , 58.Nm sysdecode_shutdown_how , 59.Nm sysdecode_sigbus_code , 60.Nm sysdecode_sigchld_code , 61.Nm sysdecode_sigfpe_code , 62.Nm sysdecode_sigill_code , 63.Nm sysdecode_signal , 64.Nm sysdecode_sigprocmask_how , 65.Nm sysdecode_sigsegv_code , 66.Nm sysdecode_sigtrap_code , 67.Nm sysdecode_sockaddr_family , 68.Nm sysdecode_socketdomain , 69.Nm sysdecode_sockettype , 70.Nm sysdecode_sockopt_level , 71.Nm sysdecode_sysarch_number , 72.Nm sysdecode_umtx_op , 73.Nm sysdecode_vmresult , 74.Nm sysdecode_whence 75.Nd lookup name of various enumerated values 76.Sh LIBRARY 77.Lb libsysdecode 78.Sh SYNOPSIS 79.In sysdecode.h 80.Ft const char * 81.Fn sysdecode_acltype "int type" 82.Ft const char * 83.Fn sysdecode_atfd "int fd" 84.Ft const char * 85.Fn sysdecode_extattrnamespace "int namespace" 86.Ft const char * 87.Fn sysdecode_fadvice "int advice" 88.Ft const char * 89.Fn sysdecode_fcntl_cmd "int cmd" 90.Ft const char * 91.Fn sysdecode_getfsstat_mode "int mode" 92.Ft const char * 93.Fn sysdecode_getrusage_who "int who" 94.Ft const char * 95.Fn sysdecode_idtype "int idtype" 96.Ft const char * 97.Fn sysdecode_ipproto "int protocol" 98.Ft const char * 99.Fn sysdecode_itimer "int which" 100.Ft const char * 101.Fn sysdecode_kldsym_cmd "int cmd" 102.Ft const char * 103.Fn sysdecode_kldunload_flags "int flags" 104.Ft const char * 105.Fn sysdecode_lio_listio_mode "int mode" 106.Ft const char * 107.Fn sysdecode_madvice "int advice" 108.Ft const char * 109.Fn sysdecode_minherit_flags "int inherit" 110.Ft const char * 111.Fn sysdecode_msgctl_cmd "int cmd" 112.Ft const char * 113.Fn sysdecode_nfssvc_flags "int flags" 114.Ft const char * 115.Fn sysdecode_pathconf_name "int name" 116.Ft const char * 117.Fn sysdecode_prio_which "int which" 118.Ft const char * 119.Fn sysdecode_procctl_cmd "int cmd" 120.Ft const char * 121.Fn sysdecode_ptrace_request "int request" 122.Ft const char * 123.Fn sysdecode_rlimit "int resource" 124.Ft const char * 125.Fn sysdecode_rtprio_function "int function" 126.Ft const char * 127.Fn sysdecode_scheduler_policy "int policy" 128.Ft const char * 129.Fn sysdecode_sctp_pr_policy "int policy" 130.Ft const char * 131.Fn sysdecode_semctl_cmd "int cmd" 132.Ft const char * 133.Fn sysdecode_shmctl_cmd "int cmd" 134.Ft const char * 135.Fn sysdecode_shutdown_how "int how" 136.Ft const char * 137.Fn sysdecode_sigbus_code "int si_code" 138.Ft const char * 139.Fn sysdecode_sigchld_code "int si_code" 140.Ft const char * 141.Fn sysdecode_sigfpe_code "int si_code" 142.Ft const char * 143.Fn sysdecode_sigill_code "int si_code" 144.Ft const char * 145.Fn sysdecode_signal "int sig" 146.Ft const char * 147.Fn sysdecode_sigprocmask_how "int how" 148.Ft const char * 149.Fn sysdecode_sigsegv_code "int si_code" 150.Ft const char * 151.Fn sysdecode_sigtrap_code "int si_code" 152.Ft const char * 153.Fn sysdecode_sockaddr_family "int sa_family" 154.Ft const char * 155.Fn sysdecode_socketdomain "int domain" 156.Ft const char * 157.Fn sysdecode_sockettype "int type" 158.Ft const char * 159.Fn sysdecode_sockopt_level "int level" 160.Ft const char * 161.Fn sysdecode_sysarch_number "int number" 162.Ft const char * 163.Fn sysdecode_umtx_op "int op" 164.Ft const char * 165.Fn sysdecode_vmresult "int result" 166.Ft const char * 167.Fn sysdecode_whence "int whence" 168.Sh DESCRIPTION 169The 170.Nm 171functions return a text description of an integer value. 172The text description matches the name of a C macro with the same value as the 173sole function argument. 174.Dv NULL 175is returned if there is no matching C macro name. 176.Pp 177Most of these functions decode an argument passed to a system call: 178.Bl -column "Fn sysdecode_extattrnamespace" "Xr sched_setscheduler 2" 179.It Sy Function Ta Sy System Call Ta Sy Argument 180.It Fn sysdecode_acltype Ta Xr acl_get_file 3 Ta Fa type 181.It Fn sysdecode_atfd Ta Xr openat 2 Ta Fa fd 182.It Fn sysdecode_extattrnamespace Ta Xr extattr_get_fd 2 Ta Fa attrnamespace 183.It Fn sysdecode_fadvice Ta Xr posix_fadvise 2 Ta Fa advice 184.It Fn sysdecode_fcntl_cmd Ta Xr fcntl 2 Ta Fa cmd 185.It Fn sysdecode_getfsstat_mode Ta Xr getfsstat 2 Ta Fa mode 186.It Fn sysdecode_idtype Ta 187.Xr procctl 2 , 188.Xr waitid 2 189.Ta Fa idtype 190.It Fn sysdecode_itimer Ta 191.Xr getitimer 2 , 192.Xr setitimer 2 193.Ta Fa which 194.It Fn sysdecode_kldsym_cmd Ta Xr kldsym 2 Ta Fa cmd 195.It Fn sysdecode_kldunload_flags Ta Xr kldunloadf 2 Ta Fa flags 196.It Fn sysdecode_lio_listio_mode Ta Xr lio_listio 2 Ta Fa mode 197.It Fn sysdecode_madvice Ta Xr madvise 2 Ta Fa advice 198.It Fn sysdecode_minherit_inherit Ta Xr minherit 2 Ta Fa inherit 199.It Fn sysdecode_msgctl_cmd Ta Xr msgctl 2 Ta Fa cmd 200.It Fn sysdecode_nfssvc_flags Ta Xr nfssvc 2 Ta Fa flags 201.It Fn sysdecode_pathconf_name Ta Xr pathconf 2 Ta Fa name 202.It Fn sysdecode_prio_which Ta Xr getpriority 2 Ta Fa which 203.It Fn sysdecode_procctl_cmd Ta Xr procctl 2 Ta Fa cmd 204.It Fn sysdecode_ptrace_request Ta Xr ptrace 2 Ta Fa request 205.It Fn sysdecode_rlimit Ta Xr getrlimit 2 Ta Fa resource 206.It Fn sysdecode_rtprio_function Ta Xr rtprio 2 Ta Fa function 207.It Fn sysdecode_getrusage_who Ta Xr getrusage 2 Ta Fa who 208.It Fn sysdecode_scheduler_policy Ta Xr sched_setscheduler 2 Ta Fa policy 209.It Fn sysdecode_semctl_cmd Ta Xr semctl 2 Ta Fa cmd 210.It Fn sysdecode_shmctl_cmd Ta Xr shmctl 2 Ta Fa cmd 211.It Fn sysdecode_shutdown_how Ta Xr shutdown 2 Ta Fa how 212.It Fn sysdecode_sigprocmask_how Ta Xr sigprocmask 2 Ta Fa how 213.It Fn sysdecode_sockopt_level Ta Xr getsockopt 2 Ta Fa level 214.It Fn sysdecode_sysarch_number Ta Xr sysarch 2 Ta Fa number 215.It Fn sysdecode_umtx_op Ta Xr _umtx_op 2 Ta Fa op 216.It Fn sysdecode_whence Ta Xr lseek 2 Ta Fa whence 217.El 218.Pp 219These functions decode signal-specific signal codes stored in the 220.Fa si_code 221field of the 222.Vt siginfo_t 223object associated with an instance of signal: 224.Bl -column "Fn sysdecode_sigchld_code" 225.It Sy Function Ta Sy Signal 226.It Fn sysdecode_sigbus_code Ta Dv SIGBUS 227.It Fn sysdecode_sigchld_code Ta Dv SIGCHLD 228.It Fn sysdecode_sigfpe_code Ta Dv SIGFPE 229.It Fn sysdecode_sigill_code Ta Dv SIGILL 230.It Fn sysdecode_sigsegv_code Ta Dv SIGSEGV 231.It Fn sysdecode_sigtrap_code Ta Dv SIGTRAP 232.El 233.Pp 234Other functions decode the values described below: 235.Bl -tag -width "Fn sysdecode_sockaddr_family" 236.It Fn sysdecode_ipproto 237An IP protocol. 238.It Fn sysdecode_sctp_pr_policy 239A PR-SCTP policy. 240.It Fn sysdecode_signal 241A process signal. 242.It Fn sysdecode_sockaddr_family 243A socket address family. 244.It Fn sysdecode_socketdomain 245A socket domain. 246.It Fn sysdecode_vmresult 247The return value of a function in the virtual memory subsystem of the kernel 248indicating the status of the associated request. 249.El 250.Sh RETURN VALUES 251The 252.Nm 253functions return the name of a matching C macro or 254.Dv NULL 255if no matching C macro was found. 256.Sh SEE ALSO 257.Xr sysdecode 3 , 258.Xr sysdecode_mask 3 , 259.Xr sysdecode_sigcode 3 260