sysconf.gperf   [plain text]


%{
/*
 * Copyright is disclaimed as to the contents of this file.
 *
 * $FreeBSD: src/usr.bin/getconf/sysconf.gperf,v 1.5 2003/08/22 17:32:07 markm Exp $
 */

#include <sys/types.h>

#include <string.h>
#include <unistd.h>
#ifdef APPLE_GETCONF_UNDERSCORE
#include <alloca.h>
#endif /* APPLE_GETCONF_UNDERSCORE */

#include "getconf.h"

/*
 * Override gperf's built-in external scope.
 */
static const struct map *in_word_set(const char *str);

%}
struct map { const char *name; int key; int valid; };
%%
AIO_LISTIO_MAX, _SC_AIO_LISTIO_MAX
AIO_MAX, _SC_AIO_MAX
AIO_PRIO_DELTA_MAX, _SC_AIO_PRIO_DELTA_MAX
ARG_MAX, _SC_ARG_MAX
ATEXIT_MAX, _SC_ATEXIT_MAX
BC_BASE_MAX, _SC_BC_BASE_MAX
BC_DIM_MAX, _SC_BC_DIM_MAX
BC_SCALE_MAX, _SC_BC_SCALE_MAX
BC_STRING_MAX, _SC_BC_STRING_MAX
CHILD_MAX, _SC_CHILD_MAX
CLK_TCK, _SC_CLK_TCK
COLL_WEIGHTS_MAX, _SC_COLL_WEIGHTS_MAX
DELAYTIMER_MAX, _SC_DELAYTIMER_MAX
EXPR_NEST_MAX, _SC_EXPR_NEST_MAX
GETGR_R_SIZE_MAX, _SC_GETGR_R_SIZE_MAX
GETPW_R_SIZE_MAX, _SC_GETPW_R_SIZE_MAX
HOST_NAME_MAX, _SC_HOST_NAME_MAX
IOV_MAX, _SC_IOV_MAX
LINE_MAX, _SC_LINE_MAX
LOGIN_NAME_MAX, _SC_LOGIN_NAME_MAX 
MQ_OPEN_MAX, _SC_MQ_OPEN_MAX
MQ_PRIO_MAX, _SC_MQ_PRIO_MAX
NGROUPS_MAX, _SC_NGROUPS_MAX
NPROCESSORS_CONF, _SC_NPROCESSORS_CONF
NPROCESSORS_ONLN, _SC_NPROCESSORS_ONLN
OPEN_MAX, _SC_OPEN_MAX
PAGESIZE, _SC_PAGESIZE
PAGE_SIZE, _SC_PAGESIZE
PASS_MAX, _SC_PASS_MAX
PTHREAD_DESTRUCTOR_ITERATIONS, _SC_THREAD_DESTRUCTOR_ITERATIONS 
PTHREAD_KEYS_MAX, _SC_THREAD_KEYS_MAX 
PTHREAD_STACK_MIN, _SC_THREAD_STACK_MIN 
PTHREAD_THREADS_MAX, _SC_THREAD_THREADS_MAX 
RE_DUP_MAX, _SC_RE_DUP_MAX
RTSIG_MAX, _SC_RTSIG_MAX
SEM_NSEMS_MAX, _SC_SEM_NSEMS_MAX
SEM_VALUE_MAX, _SC_SEM_VALUE_MAX
SIGQUEUE_MAX, _SC_SIGQUEUE_MAX
STREAM_MAX, _SC_STREAM_MAX
SYMLOOP_MAX, _SC_SYMLOOP_MAX
TIMER_MAX, _SC_TIMER_MAX
TTY_NAME_MAX, _SC_TTY_NAME_MAX 
TZNAME_MAX, _SC_TZNAME_MAX
_POSIX2_CHAR_TERM, _SC_2_CHAR_TERM
_POSIX2_C_BIND, _SC_2_C_BIND
_POSIX2_C_DEV, _SC_2_C_DEV
_POSIX2_C_VERSION, _SC_2_C_VERSION
_POSIX2_FORT_DEV, _SC_2_FORT_DEV
_POSIX2_FORT_RUN, _SC_2_FORT_RUN
_POSIX2_LOCALEDEF, _SC_2_LOCALEDEF
_POSIX2_PBS, _SC_PBS
_POSIX2_PBS_ACCOUNTING, _SC_PBS_ACCOUNTING
_POSIX2_PBS_CHECKPOINT, _SC_PBS_CHECKPOINT
_POSIX2_PBS_LOCATE, _SC_PBS_LOCATE
_POSIX2_PBS_MESSAGE, _SC_PBS_MESSAGE
_POSIX2_PBS_TRACK, _SC_PBS_TRACK
_POSIX2_SW_DEV, _SC_2_SW_DEV
_POSIX2_UPE, _SC_2_UPE
_POSIX2_VERSION, _SC_2_VERSION
_POSIX_ADVISORY_INFO, _SC_ADVISORY_INFO
_POSIX_ASYNCHRONOUS_IO, _SC_ASYNCHRONOUS_IO 
_POSIX_BARRIERS, _SC_BARRIERS
_POSIX_CLOCK_SELECTION, _SC_CLOCK_SELECTION
_POSIX_CPUTIME, _SC_CPUTIME
_POSIX_FILE_LOCKING, _SC_FILE_LOCKING
_POSIX_FSYNC, _SC_FSYNC 
_POSIX_IPV6, _SC_IPV6
_POSIX_JOB_CONTROL, _SC_JOB_CONTROL
_POSIX_MAPPED_FILES, _SC_MAPPED_FILES 
_POSIX_MEMLOCK, _SC_MEMLOCK 
_POSIX_MEMLOCK_RANGE, _SC_MEMLOCK_RANGE 
_POSIX_MEMORY_PROTECTION, _SC_MEMORY_PROTECTION 
_POSIX_MESSAGE_PASSING, _SC_MESSAGE_PASSING 
_POSIX_MONOTONIC_CLOCK, _SC_MONOTONIC_CLOCK
_POSIX_PRIORITIZED_IO, _SC_PRIORITIZED_IO 
_POSIX_PRIORITY_SCHEDULING, _SC_PRIORITY_SCHEDULING 
_POSIX_RAW_SOCKETS, _SC_RAW_SOCKETS
_POSIX_READER_WRITER_LOCKS, _SC_READER_WRITER_LOCKS
_POSIX_REALTIME_SIGNALS, _SC_REALTIME_SIGNALS 
_POSIX_REGEXP, _SC_REGEXP
_POSIX_SAVED_IDS, _SC_SAVED_IDS
_POSIX_SEMAPHORES, _SC_SEMAPHORES 
_POSIX_SHARED_MEMORY_OBJECTS, _SC_SHARED_MEMORY_OBJECTS 
_POSIX_SHELL, _SC_SHELL
_POSIX_SPAWN, _SC_SPAWN
_POSIX_SPIN_LOCKS, _SC_SPIN_LOCKS
_POSIX_SPORADIC_SERVER, _SC_SPORADIC_SERVER
_POSIX_SS_REPL_MAX, _SC_SS_REPL_MAX
_POSIX_SYNCHRONIZED_IO, _SC_SYNCHRONIZED_IO 
_POSIX_THREADS, _SC_THREADS 
_POSIX_THREAD_ATTR_STACKADDR, _SC_THREAD_ATTR_STACKADDR 
_POSIX_THREAD_ATTR_STACKSIZE, _SC_THREAD_ATTR_STACKSIZE 
_POSIX_THREAD_CPUTIME, _SC_THREAD_CPUTIME
_POSIX_THREAD_PRIORITY_SCHEDULING, _SC_THREAD_PRIORITY_SCHEDULING 
_POSIX_THREAD_PRIO_INHERIT, _SC_THREAD_PRIO_INHERIT 
_POSIX_THREAD_PRIO_PROTECT, _SC_THREAD_PRIO_PROTECT 
_POSIX_THREAD_PROCESS_SHARED, _SC_THREAD_PROCESS_SHARED 
_POSIX_THREAD_SAFE_FUNCTIONS, _SC_THREAD_SAFE_FUNCTIONS
_POSIX_THREAD_SPORADIC_SERVER, _SC_THREAD_SPORADIC_SERVER
_POSIX_TIMEOUTS, _SC_TIMEOUTS
_POSIX_TIMERS, _SC_TIMERS
_POSIX_TRACE, _SC_TRACE
_POSIX_TRACE_EVENT_FILTER, _SC_TRACE_EVENT_FILTER
_POSIX_TRACE_EVENT_NAME_MAX, _SC_TRACE_EVENT_NAME_MAX
_POSIX_TRACE_INHERIT, _SC_TRACE_INHERIT
_POSIX_TRACE_LOG, _SC_TRACE_LOG
_POSIX_TRACE_NAME_MAX, _SC_TRACE_NAME_MAX
_POSIX_TRACE_SYS_MAX, _SC_TRACE_SYS_MAX
_POSIX_TRACE_USER_EVENT_MAX, _SC_TRACE_USER_EVENT_MAX
_POSIX_TYPED_MEMORY_OBJECTS, _SC_TYPED_MEMORY_OBJECTS
_POSIX_V6_ILP32_OFF32, _SC_V6_ILP32_OFF32
_POSIX_V6_ILP32_OFFBIG, _SC_V6_ILP32_OFFBIG
_POSIX_V6_LP64_OFF64, _SC_V6_LP64_OFF64
_POSIX_V6_LPBIG_OFFBIG, _SC_V6_LPBIG_OFFBIG
_POSIX_VERSION, _SC_VERSION
_XOPEN_CRYPT, _SC_XOPEN_CRYPT
_XOPEN_ENH_I18N, _SC_XOPEN_ENH_I18N
_XOPEN_LEGACY, _SC_XOPEN_LEGACY
_XOPEN_REALTIME, _SC_XOPEN_REALTIME
_XOPEN_REALTIME_THREADS, _SC_XOPEN_REALTIME_THREADS
_XOPEN_SHM, _SC_XOPEN_SHM
_XOPEN_STREAMS, _SC_XOPEN_STREAMS
_XOPEN_UNIX, _SC_XOPEN_UNIX
_XOPEN_VERSION, _SC_XOPEN_VERSION
_XOPEN_XCU_VERSION, _SC_XCU_VERSION
%%
int
find_sysconf(const char *name, int *key)
{
	const struct map *rv;
#ifdef APPLE_GETCONF_UNDERSCORE
	char *alt;
#endif /* APPLE_GETCONF_UNDERSCORE */

	rv = in_word_set(name);
	if (rv != NULL) {
		if (rv->valid) {
			*key = rv->key;
			return 1;
		}
		return -1;
	}
#ifdef APPLE_GETCONF_UNDERSCORE
	if(*name == '_')
		alt = (char *)name + 1;
	else {
		if((alt = (char *)alloca(strlen(name) + 2)) == NULL)
			return 0;
		*alt = '_';
		strcpy(alt + 1, name);
	}
	rv = in_word_set(alt);
	if (rv != NULL) {
		if (rv->valid) {
			*key = rv->key;
			return 1;
		}
		return -1;
	}
#endif /* APPLE_GETCONF_UNDERSCORE */
	return 0;
}