_ minmax value # N __ # O use original name and definition # R ___

_ # S __

_ # U

_ prefixed by underscore # V _ prefix not allowed # W standard required # X define even if native is dynamic (ast special) # # default names if

<= 1 # # __ # _ # # default names if

> 1 # # __

_ #

_ # # the [NSU] flags modify the default names # ABI_AIO_XFER_MAX C QQ 1 L ABI_ASYNCHRONOUS_IO C QQ 1 L ABI_ASYNC_IO C QQ 1 L ADVISORY_INFO POSIX SC 1 FUW AIO_LISTIO_MAX POSIX SC 1 LMU 2 AIO_MAX POSIX SC 1 LMU 1 AIO_PRIO_DELTA_MAX POSIX SC 1 LMU ALLOC_SIZE_MIN POSIX PC 1 LUVW ARCHITECTURE SVID SI 1 0 ARG_MAX POSIX SC 1 CDLMUX NCARGS 4096 ASYNCHRONOUS_IO POSIX SC 1 CDFUW ASYNC_IO POSIX PC 1 FUW ATEXIT_MAX XOPEN SC 1 LMU 32 AUDIT C QQ 1 L AVAIL_PROCESSORS C QQ 1 L AVPHYS_PAGES SUN SC 1 0 BARRIERS POSIX SC 1 FUW BC_BASE_MAX POSIX SC 2 LMN 99 BC_DIM_MAX POSIX SC 2 LMN 2048 BC_SCALE_MAX POSIX SC 2 LMN 99 BC_STRING_MAX POSIX SC 2 LMN 1000 BUSTYPES SVID SI 1 0 CHARCLASS_NAME_MAX XOPEN XX 1 L 14 CHAR_BIT C XX 1 L 8 CHAR_MAX C XX 1 L CHAR_MIN C XX 1 L CHAR_TERM POSIX SC 2 FUW CHILD_MAX POSIX SC 1 CDLMUX 6 cc{ #if _lib_fork #define child() fork() #else #ifdef _map_spawnve #define spawnve _map_spawnve #endif extern int spawnve(const char*, char* const[], char* const[]); static char* cmd[] = { "/bin/echo", 0 }; #define child() spawnve(cmd[0],cmd,(char**)0) #endif int main() { int i; int n; for (i = 3; i < 512 && (n = child()) >= 0; i++) if (!n) _exit(0); while (wait((int*)0) > 0); for (n = 8; n < i; n <<= 1); printf("%d", n); return 0; } } CHOWN_RESTRICTED POSIX PC 1 FUW CKPT POSIX SC 1 FU CLK_TCK POSIX SC 1 L HZ 60 CLOCKRES_MIN POSIX SC 1 MUW 1 CLOCKS_PER_SEC C QQ 1 L CLOCK_SELECTION POSIX SC 1 FUVW COLL_WEIGHTS_MAX POSIX SC 2 DLMN 2 CPUTIME POSIX SC 1 FUW CPU_KEYBITS1 C QQ 1 L CPU_VERSION C QQ 1 L CRYPT XOPEN SC 1 FSUW C_BIND POSIX SC 2 FU C_DEV POSIX SC 2 FU C_VERSION POSIX SC 2 CDFU DATAKEYS_MAX C QQ 1 0 DELAYTIMER_MAX POSIX SC 1 LMU 32 ENH_I18N XOPEN SC 1 FSUW EQUIV_CLASS_MAX C QQ 1 L EXEC_INTERPRETER_LENGTH C QQ 1 L EXPR_NEST_MAX POSIX SC 2 LMN 32 FCHR_MAX SVID SC 1 LMU LONG_MAX 2147483647 FILESIZEBITS POSIX PC 1 LMU (8*sizeof(off_t)) 32 FILE_LOCKING POSIX SC 1 FU FORT_DEV POSIX SC 2 FUW FORT_RUN POSIX SC 2 FUW FSYNC POSIX SC 1 CDFUW _lib_fsync GETGR_R_SIZE_MAX C QQ 1 L GETPW_R_SIZE_MAX C QQ 1 L HOSTID C QQ 1 L HOSTNAME SVID SI 1 0 HOST_NAME_MAX POSIX SC 1 LMU 255 HW_PROVIDER SVID SI 1 0 HW_SERIAL C QQ 1 L ILP32_OFF32 XBS5 SC 1 FU ILP32_OFF32_CFLAGS XBS5 CS 1 FU ILP32_OFF32_LDFLAGS XBS5 CS 1 FU ILP32_OFF32_LIBS XBS5 CS 1 FU ILP32_OFF32_LINTFLAGS XBS5 CS 1 FU ILP32_OFFBIG XBS5 SC 1 FU ILP32_OFFBIG_CFLAGS XBS5 CS 1 FU ILP32_OFFBIG_LDFLAGS XBS5 CS 1 FU ILP32_OFFBIG_LIBS XBS5 CS 1 FU ILP32_OFFBIG_LINTFLAGS XBS5 CS 1 FU INITTAB_NAME SVID SI 1 0 INT_MAX C XX 1 L 32767 INT_MIN C XX 1 L -32767 IOV_MAX XOPEN SC 1 LMU 16 IO_TYPE C QQ 1 L IPV6 POSIX SC 1 FUW IP_SECOPTS C QQ 1 L JOB_CONTROL POSIX SC 1 FUW cc{ #include "FEATURE/wait" #if _ok_wif int main() { printf("1"); return 0; } #endif } KERNEL_CLIST SCO SC 1 0 KERNEL_CLIST_MAX SCO SC 1 0 KERNEL_DISK SCO SC 1 0 KERNEL_DISK_MAX SCO SC 1 0 KERNEL_DMABUF SCO SC 1 0 KERNEL_DMABUF_MAX SCO SC 1 0 KERNEL_FILE SCO SC 1 0 KERNEL_FILE_MAX SCO SC 1 0 KERNEL_FLCKREC SCO SC 1 0 KERNEL_FLCKREC_MAX SCO SC 1 0 KERNEL_INODE SCO SC 1 0 KERNEL_INODE_MAX SCO SC 1 0 KERNEL_MOUNT SCO SC 1 0 KERNEL_MOUNT_MAX SCO SC 1 0 KERNEL_PINODE SCO SC 1 0 KERNEL_PINODE_MAX SCO SC 1 0 KERNEL_PROC SCO SC 1 0 KERNEL_PROC_MAX SCO SC 1 0 KERNEL_REGION SCO SC 1 0 KERNEL_REGION_MAX SCO SC 1 0 KERNEL_S5INODE SCO SC 1 0 KERNEL_S5INODE_MAX SCO SC 1 0 KERNEL_STAMP SVID SI 1 0 KERN_POINTERS C QQ 1 L KERN_SIM C QQ 1 L LEGACY XOPEN SC 1 FU LFS_CFLAGS POSIX CS 1 MU cc{ -D_LARGEFILE_SOURCE "-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" -D_LARGEFILE64_SOURCE -64 #include int main() { if (sizeof(off_t) >= sizeof(off_64_t)) { printf("-"); return 0; } return 1; } } LFS64_CFLAGS POSIX CS 1 MU : LFS_CFLAGS LFS64_LDFLAGS POSIX CS 1 MU : LFS_CFLAGS LFS64_LIBS POSIX CS 1 MU LFS64_LINTFLAGS POSIX CS 1 MU : LFS_CFLAGS LFS_LDFLAGS POSIX CS 1 MU : LFS_CFLAGS LFS_LIBS POSIX CS 1 MU LFS_LINTFLAGS POSIX CS 1 MU : LFS_CFLAGS LINE_MAX POSIX SC 2 LMN 2048 LINK_MAX POSIX PC 1 LMU MAXLINK SHRT_MAX 8 LLONG_MAX C XX 1 L LLONG_MIN C XX 1 L LOCALEDEF POSIX SC 1 FUW LOCALEDEF POSIX SC 2 FUW LOGIN_NAME_MAX POSIX SC 1 LMU LOGNAME_MAX SVID SC 1 MU 8 LONG_BIT XOPEN XX 1 L (8*sizeof(long)) 32 LONG_MAX C XX 1 L 2147483647 LONG_MIN C XX 1 L -2147483647 LP64_OFF64 XBS5 SC 1 FU LP64_OFF64_CFLAGS XBS5 CS 1 FU LP64_OFF64_LDFLAGS XBS5 CS 1 FU LP64_OFF64_LIBS XBS5 CS 1 FU LP64_OFF64_LINTFLAGS XBS5 CS 1 FU LPBIG_OFFBIG XBS5 SC 1 FU LPBIG_OFFBIG_CFLAGS XBS5 CS 1 FU LPBIG_OFFBIG_LDFLAGS XBS5 CS 1 FU LPBIG_OFFBIG_LIBS XBS5 CS 1 FU LPBIG_OFFBIG_LINTFLAGS XBS5 CS 1 FU MACHINE SVID SI 1 0 MAPPED_FILES POSIX SC 1 CDFUW _lib_mmap MAX_CANON POSIX PC 1 LMU CANBSIZ 255 MAX_INPUT POSIX PC 1 LMU MAX_CANON 255 MB_LEN_MAX C XX 1 L 1 MCAS_OFFSET C QQ 1 L MEMLOCK POSIX SC 1 CDFUW MEMLOCK_RANGE POSIX SC 1 CDFUW MEMORY_PROTECTION POSIX SC 1 CDFUW MESSAGE_PASSING POSIX SC 1 CDFUW MMAP_FIXED_ALIGNMENT C QQ 1 L _AST_PAGESIZE MONOTONIC_CLOCK POSIX SC 1 FUW MQ_OPEN_MAX POSIX SC 1 LMU 8 MQ_PRIO_MAX POSIX SC 1 LMU 32 MSEM_LOCKID C QQ 1 L MULTI_PROCESS POSIX SC 1 FU NACLS_MAX SVID SC 1 0 NAME_MAX POSIX PC 1 LMU 14 cc{ int main() { #ifdef MAXNAMLEN printf("%d", MAXNAMLEN); #else #if !defined(remove) && (!_lib_remove || _lib_unlink) #define remove unlink #endif int i; int n; int v; char name[256]; for (i = 0; i < sizeof(name); i++) name[i] = 'F'; name[8] = '.'; name[sizeof(name) - 1] = 0; if ((n = creat(name, 0666)) >= 0) { close(n); for (v = 12; v < sizeof(name); v++) { name[v] = 0; if (remove(name) >= 0) break; name[v] = 'F'; } } else for (v = 12; v < sizeof(name); v++) { name[v] = 0; if ((n = creat(name, 0666)) >= 0) { close(n); remove(name); name[v] = 'F'; } else { v--; break; } } printf("%d", v); return 0; } #endif } NGROUPS_MAX POSIX SC 1 CDLMU 8 cc{ #if _lib_getgroups int main() { int n; gid_t g; if ((n = getgroups(0, &g)) < 0) #if defined(NGROUPS) && (NGROUPS-0) > 0 n = NGROUPS; #else return 1; #endif printf("%d", n); return 0; } #endif } NL_ARGMAX XOPEN XX 1 L 9 NL_LANGMAX XOPEN XX 1 L 14 NL_MAX C QQ 1 L NL_MSGMAX XOPEN XX 1 L 32767 NL_NMAX XOPEN XX 1 L 1 NL_SETMAX XOPEN XX 1 L 255 NL_SPECMAX C QQ 1 L NL_TEXTMAX XOPEN XX 1 L LINE_MAX NO_TRUNC POSIX PC 1 FUW NPROCESSORS_CONF SVID SC 1 0 NPROCESSORS_ONLN SVID SC 1 0 NPROC_CONF C QQ 1 L NPROC_ONLN C QQ 1 L NSS_BUFLEN_GROUP C QQ 1 L NSS_BUFLEN_PASSWD C QQ 1 L NUM_PROCESSORS C QQ 1 L NZERO XOPEN XX 1 L 20 OPEN_MAX POSIX SC 1 CDLMUX 16 cc{ #if _lib_getdtablesize extern int getdtablesize(void); int main() { printf("%d", getdtablesize()); return 0; } #else int main() { int i; int n; int v; n = 0; v = 2; while ((i = dup(0)) >= 0) { if (!n) n = i; if (i > v) v = i; } while (n <= v) close(n++); printf("%d", v); return 0; } #endif } OPEN_MAX_CEIL AST XX 1 L OPEN_MAX OSREL_MAJ C QQ 1 L OSREL_MIN C QQ 1 L OSREL_PATCH C QQ 1 L OS_BASE SVID SI 1 0 OS_PROVIDER SVID SI 1 0 OS_VERSION AES SC 1 FSU PAGESIZE POSIX SC 1 MU PAGESIZE PAGE_SIZE 4096 cc{ int main() { #if _WIN32 printf("%ld", 64*1024L); return 0; #else #if _lib_getpagesize #if _npt_getpagesize extern size_t getpagesize(void); #endif printf("%d", getpagesize()); return 0; #endif #else return 1; #endif } } PAGE_SIZE POSIX SC 1 MU _AST_PAGESIZE PASS_MAX SVID SC 1 CDLMU 8 PATH POSIX CS 1 CMU "/bin:/usr/bin" PATH_MAX POSIX PC 1 CDLMUX MAXPATHLEN 1024 PBS POSIX SC 2 FUW PBS_ACCOUNTING POSIX SC 2 FUW PBS_CHECKPOINT POSIX SC 2 FUW PBS_LOCATE POSIX SC 2 FUW PBS_MESSAGE POSIX SC 2 FUW PBS_TRACK POSIX SC 2 FUW PHYS_PAGES SUN SC 1 0 PID_MAX SVID SC 1 LMU 30000 cc{ int main() { int fd; int n; char buf[1024]; if ((fd = open("/proc/sys/kernel/pid_max", 0)) < 0) return 1; if ((n = read(fd, buf, sizeof(buf)-1)) < 2) return 1; buf[n] = 0; n = (int)strtol(buf, (char**)0, 0); printf("%ld", n); return 0; } } PII POSIX SC 1 FU PII_INTERNET POSIX SC 1 FU PII_INTERNET_DGRAM POSIX SC 1 FU PII_INTERNET_STREAM POSIX SC 1 FU PII_OSI POSIX SC 1 FU PII_OSI_CLTS POSIX SC 1 FU PII_OSI_COTS POSIX SC 1 FU PII_OSI_M POSIX SC 1 FU PII_SOCKET POSIX SC 1 FU PII_XTI POSIX SC 1 FU PIPE_BUF POSIX PC 1 LMU 512 POLL POSIX SC 1 FU PRIORITIZED_IO POSIX SC 1 FUW PRIORITY_SCHEDULING POSIX SC 1 CDFUW PRIO_IO POSIX PC 1 FUW PROC_RSRC_MGR C QQ 1 L PTHREAD_DESTRUCTOR_ITERATIONS C QQ 1 L PTHREAD_KEYS_MAX C QQ 1 L PTHREAD_STACK_MIN C QQ 1 L PTHREAD_THREADS_MAX C QQ 1 L PTRDIFF_MAX C XX 1 LMU stdint.h 65535 PTRDIFF_MIN C XX 1 LMU stdint.h -65535 RAW_SOCKETS POSIX SC 1 FUW READER_WRITER_LOCKS POSIX SC 1 FUW REALTIME XOPEN SC 1 FU REALTIME_SIGNALS POSIX SC 1 CDFUW REALTIME_THREADS XOPEN SC 1 FU REC_INCR_XFER_SIZE POSIX PC 1 LVW REC_MAX_XFER_SIZE POSIX PC 1 LVW REC_MIN_XFER_SIZE POSIX PC 1 LVW REC_XFER_ALIGN POSIX PC 1 LVW REENTRANT_FUNCTIONS POSIX SC 1 FU REGEXP POSIX SC 1 FUW REGEX_VERSION POSIX SC 1 F 20030916 RELEASE C QQ 1 L RESOURCE_LIMITS POSIX SC 1 FU RE_DUP_MAX POSIX SC 2 LMN 255 RTSIG_MAX POSIX SC 1 LMU 8 SAVED_IDS POSIX SC 1 FUW cc{ #if _lib_setuid && !_lib_setreuid int main() { printf("1"); return 0; } #endif } SCHAR_MAX C XX 1 L 127 SCHAR_MIN C XX 1 L -127 SECURITY_CLASS C QQ 1 L SELECT POSIX SC 1 FU SEMAPHORES POSIX SC 1 CDFUW SEM_NSEMS_MAX POSIX SC 1 LMU 256 SEM_VALUE_MAX POSIX SC 1 LMU 32767 SH AST CS 1 MU sh{ ifs=$IFS IFS=: set '' `$CONF_getconf PATH 2>/dev/null` /bin /usr/bin /sbin /usr/sbin shift path=$* IFS=$ifs for s in ksh ksh93 sh do for d in $path do if test -x $d/$s then case $s in ksh) case `$d/$s '--?-author' 2>&1` in *'David Korn'*) ;; *) continue ;; esac ;; esac echo "\"$d/$s\"" exit fi done done echo '"/bin/sh"' } SHARED_MEMORY_OBJECTS POSIX SC 1 CDFUW SHELL POSIX SC 1 FUVW SHM XOPEN SC 1 FSUW SHRT_MAX C XX 1 L 32767 SHRT_MIN C XX 1 L -32767 SIG_ATOMIC_MAX C XX 1 L signal.h SIG_ATOMIC_MIN C XX 1 L signal.h SIGQUEUE_MAX POSIX SC 1 LMU 32 SIGQUEUE_MAX POSIX SC 1 LMU 32 SIGRT_MAX SVID SC 1 0 SIGRT_MIN SVID SC 1 0 SIZE_MAX C XX 1 LMX stdint.h UINT_MAX 65535 SLVM_MAXNODES C QQ 1 L SOCK_MAXBUF C QQ 1 0 SOFTPOWER C QQ 1 L SPAWN POSIX SC 1 FUW SPIN_LOCKS POSIX SC 1 FUW SPORADIC_SERVER POSIX SC 1 FUW SRPC_DOMAIN C QQ 1 0 SS_REPL_MAX POSIX SC 1 FUW SSIZE_MAX POSIX XX 1 LMUX INT_MAX 32767 STD_BLK SVID SC 1 LMU 1024 STREAM_MAX POSIX SC 1 LMU OPEN_MAX 8 STREAMS XOPEN SC 1 FSUW SW_DEV POSIX SC 2 FUW SYMLINK_MAX POSIX PC 1 LMU 255 cc{ int main() { printf("%d", PATH_MAX-1); return 0; } } SYMLINKS POSIX PC 2 FUW SYMLOOP_MAX POSIX SC 1 LMU 8 SYNCHRONIZED_IO POSIX SC 1 CDFUW SYNC_IO POSIX PC 1 FUW SYSNAME SVID SI 1 0 SYSPID_MAX SVID SC 1 LMU 2 THREADS POSIX SC 1 CDFUW THREADS_PRIO_CEILING POSIX SC 1 FUW THREADS_PRIO_INHERIT POSIX SC 1 FUW THREAD_ATTR_STACKADDR POSIX SC 1 CDFUW THREAD_ATTR_STACKSIZE POSIX SC 1 CDFUW THREAD_CPUTIME POSIX SC 1 FUW THREAD_DESTRUCTOR_ITERATIONS POSIX SC 1 LMUW PTHREAD_DESTRUCTOR_ITERATIONS 4 THREAD_KEYS_MAX POSIX SC 1 LMUW PTHREAD_KEYS_MAX 128 THREAD_PRIORITY_SCHEDULING POSIX SC 1 CDFUW THREAD_PRIO_INHERIT POSIX SC 1 CDFUW THREAD_PRIO_PROTECT POSIX SC 1 CDFUW THREAD_PROCESS_SHARED POSIX SC 1 CDFUW THREAD_SAFE_FUNCTIONS POSIX SC 1 CDFUW THREAD_SPORADIC_SERVER POSIX SC 1 FUW THREAD_STACK_MIN POSIX SC 1 LUW PTHREAD_STACK_MIN THREAD_THREADS_MAX POSIX SC 1 LMUW PTHREAD_THREADS_MAX 64 TIMEOUTS POSIX SC 1 FUW TIMERS POSIX SC 1 CDFUW TIMER_MAX POSIX SC 1 LMU 32 TMP AST CS 1 MU "/tmp" TMP_MAX C SC 1 LMU 10000 TRACE POSIX SC 1 FUW TRACE_EVENT_FILTER POSIX SC 1 FUW TRACE_EVENT_NAME_MAX POSIX SC 1 FUVW TRACE_INHERIT POSIX SC 1 FUW TRACE_LOG POSIX SC 1 FUW TRACE_NAME_MAX POSIX SC 1 FUVW TRACE_SYS_MAX POSIX SC 1 FUVW TRACE_USER_EVENT_MAX POSIX SC 1 FUVW TTY_NAME_MAX POSIX SC 1 LMU 9 TYPED_MEMORY_OBJECTS POSIX SC 1 FUW TZNAME_MAX POSIX SC 1 CDLMU 6 T_IOV_MAX C QQ 1 0 UCHAR_MAX C XX 1 L 255 UCHAR_MIN C XX 1 L UID_MAX SVID SC 1 LMU 60002 UINT_MAX C XX 1 L 65535 UIO_MAXIOV C QQ 1 0 ULLONG_MAX C XX 1 L ULONG_MAX C XX 1 L 4294967295 UNIX XOPEN SC 1 FSUW UPE POSIX SC 2 FUW USER_LIMIT SVID SI 1 0 USHRT_MAX C XX 1 L 65535 V6_ILP32_OFF32 POSIX SC 1 W V6_ILP32_OFFBIG POSIX SC 1 W V6_LP64_OFF64 POSIX SC 1 W V6_LPBIG_OFFBIG POSIX SC 1 W VDISABLE POSIX PC 1 FUW VERSION POSIX SC 1 CDFSU 200112 VERSION POSIX SC 2 CDFSU 200112 VERSION XOPEN SC 1 CDFSU 600 VERSION AST XX 1 MS _AST_VERSION VERSION SVID SI 1 S VERSION XPG SC 3 DFSU VERSION XPG SC 4 DFSU VERSION_88 C XX 1 L VERSION_88 POSIX SC 1 FSU VERSION_90 C XX 1 L VERSION_90 POSIX SC 1 FSU VERSION_93 C XX 1 L VERSION_93 POSIX SC 1 FSU WCHAR_MAX C XX 1 L stddef.h WCHAR_MIN C XX 1 L stddef.h WINT_MIN C XX 1 L wchar.h WINT_MAX C XX 1 L wchar.h WORD_BIT XOPEN XX 1 L (8*sizeof(int)) XCU_VERSION XOPEN SC 1 CDFSU XPG2 XOPEN XX 1 FU XPG3 XOPEN XX 1 FU XPG4 XOPEN XX 1 FU # vendor prefixes VERSION GNU XX 1 S VERSION TRUSTEDBSD XX 1 S