From ffb1998145c3bfe0a96f2cadce6ad345cfa5088d Mon Sep 17 00:00:00 2001 From: Garrett Wollman Date: Sat, 21 Sep 2002 02:08:32 +0000 Subject: Define constants for those POSIX options and option groups which are (or would be) implemented (or not) exclusively in user-land. A threads expert should check over the values I have set to make sure that they correctly reflect reality. Move all sysconf() keys here from as they are not implemented in the kernel. Add new keys from 1003.1-2001 final text. (Some additional keys are expected in TC1.) Add some protection against redundant declarations between and for some functions which XSI requires in the former and BSD traditionally declares in the latter. Restrict qualifiers and other changes from 1003.1-2001 have not been made to the functions prototyped here. (3 of 5) --- include/unistd.h | 255 +++++++++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 237 insertions(+), 18 deletions(-) (limited to 'include/unistd.h') diff --git a/include/unistd.h b/include/unistd.h index b644ce23d512..9227c63d0a06 100644 --- a/include/unistd.h +++ b/include/unistd.h @@ -81,6 +81,230 @@ typedef __uid_t_ uid_t; #define F_TEST 3 /* test a section for locks by other procs */ #endif +/* + * POSIX options and option groups we unconditionally do or don't + * implement. This list includes those options which are exclusively + * implemented (or not) in user mode. Please keep this list in + * alphabetical order. + * + * Anything which is defined as zero below **must** have an + * implementation for the corresponding sysconf() which is able to + * determine conclusively whether or not the feature is supported. + * Anything which is defined as other than -1 below **must** have + * complete headers, types, and function declarations as specified by + * the POSIX standard; however, if the relevant sysconf() function + * returns -1, the functions may be stubbed out. + */ +#define _POSIX_BARRIERS -1 +#define _POSIX_READER_WRITER_LOCKS 200112L +#define _POSIX_REGEXP 1 +#define _POSIX_SHELL 1 +#define _POSIX_SPAWN -1 +#define _POSIX_SPIN_LOCKS -1 +#define _POSIX_THREAD_ATTR_STACKADDR 200112L +#define _POSIX_THREAD_ATTR_STACKSIZE 200112L +#define _POSIX_THREAD_CPUTIME -1 +#define _POSIX_THREAD_PRIO_INHERIT 200112L +#define _POSIX_THREAD_PRIO_PROTECT 200112L +#define _POSIX_THREAD_PRIORITY_SCHEDULING 200112L +#define _POSIX_THREAD_PROCESS_SHARED -1 +#define _POSIX_THREAD_SAFE_FUNCTIONS -1 +#define _POSIX_THREAD_SPORADIC_SERVER -1 +#define _POSIX_THREADS 200112L +#define _POSIX_TRACE -1 +#define _POSIX_TRACE_EVENT_FILTER -1 +#define _POSIX_TRACE_INHERIT -1 +#define _POSIX_TRACE_LOG -1 +#define _POSIX2_C_BIND 200112L /* mandatory */ +#define _POSIX2_C_DEV -1 /* need c99 utility */ +#define _POSIX2_CHAR_TERM 1 +#define _POSIX2_FORT_DEV -1 /* need fort77 utility */ +#define _POSIX2_FORT_RUN 200112L +#define _POSIX2_LOCALEDEF -1 +#define _POSIX2_PBS -1 +#define _POSIX2_PBS_ACCOUNTING -1 +#define _POSIX2_PBS_CHECKPOINT -1 +#define _POSIX2_PBS_LOCATE -1 +#define _POSIX2_PBS_MESSAGE -1 +#define _POSIX2_PBS_TRACK -1 +#define _POSIX2_SW_DEV -1 /* XXX ??? */ +#define _POSIX2_UPE 200112L +#define _V6_ILP32_OFF32 -1 +#define _V6_ILP32_OFFBIG 0 +#define _V6_LP64_OFF64 0 +#define _V6_LPBIG_OFFBIG -1 + +#if __XSI_VISIBLE +#define _XOPEN_CRYPT -1 /* XXX ??? */ +#define _XOPEN_ENH_I18N -1 /* mandatory in XSI */ +#define _XOPEN_LEGACY -1 +#define _XOPEN_REALTIME -1 +#define _XOPEN_REALTIME_THREADS -1 +#define _XOPEN_UNIX -1 +#endif + +/* Define the versions we target for compliance. */ +#define _POSIX_VERSION 200112L +#define _POSIX2_VERSION 200112L + +/* + * POSIX-style system configuration variable accessors (for the + * sysconf function). The kernel does not directly implement the + * sysconf() interface; rather, a C library stub translates references + * to sysconf() into calls to sysctl() using a giant switch statement. + * Those that are marked `user' are implemented entirely in the C + * library and never query the kernel. pathconf() is implemented + * directly by the kernel so those are not defined here. + */ +#define _SC_ARG_MAX 1 +#define _SC_CHILD_MAX 2 +#define _SC_CLK_TCK 3 +#define _SC_NGROUPS_MAX 4 +#define _SC_OPEN_MAX 5 +#define _SC_JOB_CONTROL 6 +#define _SC_SAVED_IDS 7 +#define _SC_VERSION 8 +#define _SC_BC_BASE_MAX 9 /* user */ +#define _SC_BC_DIM_MAX 10 /* user */ +#define _SC_BC_SCALE_MAX 11 /* user */ +#define _SC_BC_STRING_MAX 12 /* user */ +#define _SC_COLL_WEIGHTS_MAX 13 /* user */ +#define _SC_EXPR_NEST_MAX 14 /* user */ +#define _SC_LINE_MAX 15 /* user */ +#define _SC_RE_DUP_MAX 16 /* user */ +#define _SC_2_VERSION 17 /* user */ +#define _SC_2_C_BIND 18 /* user */ +#define _SC_2_C_DEV 19 /* user */ +#define _SC_2_CHAR_TERM 20 /* user */ +#define _SC_2_FORT_DEV 21 /* user */ +#define _SC_2_FORT_RUN 22 /* user */ +#define _SC_2_LOCALEDEF 23 /* user */ +#define _SC_2_SW_DEV 24 /* user */ +#define _SC_2_UPE 25 /* user */ +#define _SC_STREAM_MAX 26 /* user */ +#define _SC_TZNAME_MAX 27 /* user */ + +#if __POSIX_VISIBLE >= 199309 +#define _SC_ASYNCHRONOUS_IO 28 +#define _SC_MAPPED_FILES 29 +#define _SC_MEMLOCK 30 +#define _SC_MEMLOCK_RANGE 31 +#define _SC_MEMORY_PROTECTION 32 +#define _SC_MESSAGE_PASSING 33 +#define _SC_PRIORITIZED_IO 34 +#define _SC_PRIORITY_SCHEDULING 35 +#define _SC_REALTIME_SIGNALS 36 +#define _SC_SEMAPHORES 37 +#define _SC_FSYNC 38 +#define _SC_SHARED_MEMORY_OBJECTS 39 +#define _SC_SYNCHRONIZED_IO 40 +#define _SC_TIMERS 41 +#define _SC_AIO_LISTIO_MAX 42 +#define _SC_AIO_MAX 43 +#define _SC_AIO_PRIO_DELTA_MAX 44 +#define _SC_DELAYTIMER_MAX 45 +#define _SC_MQ_OPEN_MAX 46 +#define _SC_PAGESIZE 47 +#define _SC_RTSIG_MAX 48 +#define _SC_SEM_NSEMS_MAX 49 +#define _SC_SEM_VALUE_MAX 50 +#define _SC_SIGQUEUE_MAX 51 +#define _SC_TIMER_MAX 52 +#endif + +#if __POSIX_VISIBLE >= 200112 +#define _SC_2_PBS 59 /* user */ +#define _SC_2_PBS_ACCOUNTING 60 /* user */ +#define _SC_2_PBS_CHECKPOINT 61 /* user */ +#define _SC_2_PBS_LOCATE 62 /* user */ +#define _SC_2_PBS_MESSAGE 63 /* user */ +#define _SC_2_PBS_TRACK 64 /* user */ +#define _SC_ADVISORY_INFO 65 +#define _SC_BARRIERS 66 /* user */ +#define _SC_CLOCK_SELECTION 67 +#define _SC_CPUTIME 68 +#define _SC_FILE_LOCKING 69 +#define _SC_GETGR_R_SIZE_MAX 70 /* user */ +#define _SC_GETPW_R_SIZE_MAX 71 /* user */ +#define _SC_HOST_NAME_MAX 72 +#define _SC_LOGIN_NAME_MAX 73 +#define _SC_MONOTONIC_CLOCK 74 +#define _SC_MQ_PRIO_MAX 75 +#define _SC_READER_WRITER_LOCKS 76 /* user */ +#define _SC_REGEXP 77 /* user */ +#define _SC_SHELL 78 /* user */ +#define _SC_SPAWN 79 /* user */ +#define _SC_SPIN_LOCKS 80 /* user */ +#define _SC_SPORADIC_SERVER 81 +#define _SC_THREAD_ATTR_STACKADDR 82 /* user */ +#define _SC_THREAD_ATTR_STACKSIZE 83 /* user */ +#define _SC_THREAD_CPUTIME 84 /* user */ +#define _SC_THREAD_DESTRUCTOR_ITERATIONS 85 /* user */ +#define _SC_THREAD_KEYS_MAX 86 /* user */ +#define _SC_THREAD_PRIO_INHERIT 87 /* user */ +#define _SC_THREAD_PRIO_PROTECT 88 /* user */ +#define _SC_THREAD_PRIORITY_SCHEDULING 89 /* user */ +#define _SC_THREAD_PROCESS_SHARED 90 /* user */ +#define _SC_THREAD_SAFE_FUNCTIONS 91 /* user */ +#define _SC_THREAD_SPORADIC_SERVER 92 /* user */ +#define _SC_THREAD_STACK_MIN 93 /* user */ +#define _SC_THREAD_THREADS_MAX 94 /* user */ +#define _SC_TIMEOUTS 95 /* user */ +#define _SC_THREADS 96 /* user */ +#define _SC_TRACE 97 /* user */ +#define _SC_TRACE_EVENT_FILTER 98 /* user */ +#define _SC_TRACE_INHERIT 99 /* user */ +#define _SC_TRACE_LOG 100 /* user */ +#define _SC_TTY_NAME_MAX 101 /* user */ +#define _SC_TYPED_MEMORY_OBJECTS 102 +#define _SC_V6_ILP32_OFF32 103 /* user */ +#define _SC_V6_ILP32_OFFBIG 104 /* user */ +#define _SC_V6_LP64_OFF64 105 /* user */ +#define _SC_V6_LPBIG_OFFBIG 106 /* user */ +#endif + +#if __XSI_VISIBLE +#define _SC_ATEXIT_MAX 107 /* user */ +#define _SC_IOV_MAX 56 +#define _SC_PAGE_SIZE _SC_PAGESIZE +#define _SC_XOPEN_CRYPT 108 /* user */ +#define _SC_XOPEN_ENH_I18N 109 /* user */ +#define _SC_XOPEN_LEGACY 110 /* user */ +#define _SC_XOPEN_REALTIME 111 +#define _SC_XOPEN_REALTIME_THREADS 112 +#define _SC_XOPEN_SHM 113 +#define _SC_XOPEN_STREAMS 114 +#define _SC_XOPEN_UNIX 115 +#define _SC_XOPEN_VERSION 116 +#define _SC_XOPEN_XCU_VERSION 117 /* user */ +#endif + +#if __BSD_VISIBLE +#define _SC_NPROCESSORS_CONF 57 +#define _SC_NPROCESSORS_ONLN 58 +#endif + +/* Keys for the confstr(3) function. */ +#if __POSIX_VISIBLE >= 199209 +#define _CS_PATH 1 /* default value of PATH */ +#endif + +#if __POSIX_VISIBLE >= 200112 +#define _CS_POSIX_V6_ILP32_OFF32_CFLAGS 2 +#define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS 3 +#define _CS_POSIX_V6_ILP32_OFF32_LIBS 4 +#define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS 5 +#define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS 6 +#define _CS_POSIX_V6_ILP32_OFFBIG_LIBS 7 +#define _CS_POSIX_V6_LP64_OFF64_CFLAGS 8 +#define _CS_POSIX_V6_LP64_OFF64_LDFLAGS 9 +#define _CS_POSIX_V6_LP64_OFF64_LIBS 10 +#define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS 11 +#define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS 12 +#define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS 13 +#define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS 14 +#endif + __BEGIN_DECLS /* 1003.1-1990 */ void _exit(int) __dead2; @@ -141,8 +365,6 @@ int getopt(int, char * const [], const char *); extern char *optarg; /* getopt(3) external variables */ extern int optind, opterr, optopt; - -#define _CS_PATH 1 /* default value of PATH */ #endif /* ISO/IEC 9945-1: 1996 */ @@ -167,27 +389,12 @@ int fchown(int, uid_t, gid_t); int gethostname(char *, int /* socklen_t */); int setegid(gid_t); int seteuid(uid_t); - -/* X/Open mistake copied by POSIX */ -#define _CS_POSIX_V6_ILP32_OFF32_CFLAGS 2 -#define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS 3 -#define _CS_POSIX_V6_ILP32_OFF32_LIBS 4 -#define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS 5 -#define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS 6 -#define _CS_POSIX_V6_ILP32_OFFBIG_LIBS 7 -#define _CS_POSIX_V6_LP64_OFF64_CFLAGS 8 -#define _CS_POSIX_V6_LP64_OFF64_LDFLAGS 9 -#define _CS_POSIX_V6_LP64_OFF64_LIBS 10 -#define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS 11 -#define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS 12 -#define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS 13 -#define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS 14 #endif /* * symlink() was originally in POSIX.1a, which was withdrawn after * being overtaken by events (1003.1-2001). It was in XPG4.2, and of - * course has been in BSD practically forever. + * course has been in BSD since 4.2. */ #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 402 || __BSD_VISIBLE int symlink(const char * __restrict, const char * __restrict); @@ -254,9 +461,15 @@ int iruserok_sa(const void *, int, int, const char *, const char *); int issetugid(void); char *mkdtemp(char *); int mknod(const char *, mode_t, dev_t); +#ifndef _MKSTEMP_DECLARED int mkstemp(char *); +#define _MKSTEMP_DECLARED +#endif int mkstemps(char *, int); +#ifndef _MKTEMP_DECLARED char *mktemp(char *); +#define _MKTEMP_DECLARED +#endif int nfsclnt(int, void *); int nfssvc(int, void *); int profil(char *, size_t, vm_offset_t, int); @@ -281,7 +494,10 @@ int setdomainname(const char *, int); int setgroups(int, const gid_t *); void sethostid(long); int sethostname(const char *, int); +#ifndef _SETKEY_DECLARED int setkey(const char *); +#define _SETKEY_DECLARED +#endif int setlogin(const char *); void *setmode(const char *); int setresgid(gid_t, gid_t, gid_t); @@ -299,7 +515,10 @@ int unwhiteout(const char *); void *valloc(size_t); /* obsoleted by malloc() */ extern char *suboptarg; /* getsubopt(3) external variable */ +#ifndef _GETSUBOPT_DECLARED int getsubopt(char **, char * const *, char **); +#define _GETSUBOPT_DECLARED +#endif extern int optreset; /* getopt(3) external variable */ #endif /* __BSD_VISIBLE */ __END_DECLS -- cgit v1.2.3