diff --git a/winsup/utils/ChangeLog b/winsup/utils/ChangeLog index 61d87146d..c1714fa22 100644 --- a/winsup/utils/ChangeLog +++ b/winsup/utils/ChangeLog @@ -1,3 +1,8 @@ +2011-07-19 Yaakov Selkowitz + + * Makefile.in (CYGWIN_BINS): Add getconf. + (getconf.c): New file. + 2011-06-14 Christopher Faylor * mingw: Force use of bash. diff --git a/winsup/utils/Makefile.in b/winsup/utils/Makefile.in index 165ac60aa..b25908fad 100644 --- a/winsup/utils/Makefile.in +++ b/winsup/utils/Makefile.in @@ -52,7 +52,7 @@ MINGW_CXX := ${srcdir}/mingw ${CXX} -I${updir} # List all binaries to be linked in Cygwin mode. Each binary on this list # must have a corresponding .o of the same name. -CYGWIN_BINS := ${addsuffix .exe,cygpath getfacl ldd locale kill mkgroup \ +CYGWIN_BINS := ${addsuffix .exe,cygpath getconf getfacl ldd locale kill mkgroup \ mkpasswd mount passwd ps regtool setfacl setmetamode ssp umount} # List all binaries to be linked in MinGW mode. Each binary on this list diff --git a/winsup/utils/getconf.c b/winsup/utils/getconf.c new file mode 100644 index 000000000..7bed16e28 --- /dev/null +++ b/winsup/utils/getconf.c @@ -0,0 +1,564 @@ +/*- + * Copyright (c) 1996, 1998 The NetBSD Foundation, Inc. + * Copyright (c) 2011 Red Hat, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by J.T. Conklin. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +struct conf_variable +{ + const char *name; + enum { SYSCONF, CONFSTR, PATHCONF, CONSTANT } type; + long long value; +}; + +static const struct conf_variable conf_table[] = +{ + /* Symbolic constants from confstr() */ + { "PATH", CONFSTR, _CS_PATH }, + { "POSIX_V7_ILP32_OFF32_CFLAGS", CONFSTR, _CS_POSIX_V7_ILP32_OFF32_CFLAGS }, + { "POSIX_V7_ILP32_OFF32_LDFLAGS", CONFSTR, _CS_POSIX_V7_ILP32_OFF32_LDFLAGS }, + { "POSIX_V7_ILP32_OFF32_LIBS", CONFSTR, _CS_POSIX_V7_ILP32_OFF32_LIBS }, + { "POSIX_V7_ILP32_OFFBIG_CFLAGS", CONFSTR, _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS }, + { "POSIX_V7_ILP32_OFFBIG_LDFLAGS", CONFSTR, _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS }, + { "POSIX_V7_ILP32_OFFBIG_LIBS", CONFSTR, _CS_POSIX_V7_ILP32_OFFBIG_LIBS }, + { "POSIX_V7_LP64_OFF64_CFLAGS", CONFSTR, _CS_POSIX_V7_LP64_OFF64_CFLAGS }, + { "POSIX_V7_LP64_OFF64_LDFLAGS", CONFSTR, _CS_POSIX_V7_LP64_OFF64_LDFLAGS }, + { "POSIX_V7_LP64_OFF64_LIBS", CONFSTR, _CS_POSIX_V7_LP64_OFF64_LIBS }, + { "POSIX_V7_LPBIG_OFFBIG_CFLAGS", CONFSTR, _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS }, + { "POSIX_V7_LPBIG_OFFBIG_LDFLAGS", CONFSTR, _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS }, + { "POSIX_V7_LPBIG_OFFBIG_LIBS", CONFSTR, _CS_POSIX_V7_LPBIG_OFFBIG_LIBS }, + { "POSIX_V7_THREADS_CFLAGS", CONFSTR, _CS_POSIX_V7_THREADS_CFLAGS }, + { "POSIX_V7_THREADS_LDFLAGS", CONFSTR, _CS_POSIX_V7_THREADS_LDFLAGS }, + { "POSIX_V7_WIDTH_RESTRICTED_ENVS", CONFSTR, _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS }, + { "POSIX_V6_ILP32_OFF32_CFLAGS", CONFSTR, _CS_POSIX_V6_ILP32_OFF32_CFLAGS }, + { "POSIX_V6_ILP32_OFF32_LDFLAGS", CONFSTR, _CS_POSIX_V6_ILP32_OFF32_LDFLAGS }, + { "POSIX_V6_ILP32_OFF32_LIBS", CONFSTR, _CS_POSIX_V6_ILP32_OFF32_LIBS }, + { "POSIX_V6_ILP32_OFFBIG_CFLAGS", CONFSTR, _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS }, + { "POSIX_V6_ILP32_OFFBIG_LDFLAGS", CONFSTR, _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS }, + { "POSIX_V6_ILP32_OFFBIG_LIBS", CONFSTR, _CS_POSIX_V6_ILP32_OFFBIG_LIBS }, + { "POSIX_V6_LP64_OFF64_CFLAGS", CONFSTR, _CS_POSIX_V6_LP64_OFF64_CFLAGS }, + { "POSIX_V6_LP64_OFF64_LDFLAGS", CONFSTR, _CS_POSIX_V6_LP64_OFF64_LDFLAGS }, + { "POSIX_V6_LP64_OFF64_LIBS", CONFSTR, _CS_POSIX_V6_LP64_OFF64_LIBS }, + { "POSIX_V6_LPBIG_OFFBIG_CFLAGS", CONFSTR, _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS }, + { "POSIX_V6_LPBIG_OFFBIG_LDFLAGS", CONFSTR, _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS }, + { "POSIX_V6_LPBIG_OFFBIG_LIBS", CONFSTR, _CS_POSIX_V6_LPBIG_OFFBIG_LIBS }, + { "POSIX_V6_WIDTH_RESTRICTED_ENVS", CONFSTR, _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS }, + { "XBS5_ILP32_OFF32_CFLAGS", CONFSTR, _CS_XBS5_ILP32_OFF32_CFLAGS }, + { "XBS5_ILP32_OFF32_LDFLAGS", CONFSTR, _CS_XBS5_ILP32_OFF32_LDFLAGS }, + { "XBS5_ILP32_OFF32_LIBS", CONFSTR, _CS_XBS5_ILP32_OFF32_LIBS }, + { "XBS5_ILP32_OFF32_LINTFLAGS", CONFSTR, _CS_XBS5_ILP32_OFF32_LINTFLAGS }, + { "XBS5_ILP32_OFFBIG_CFLAGS", CONFSTR, _CS_XBS5_ILP32_OFFBIG_CFLAGS }, + { "XBS5_ILP32_OFFBIG_LDFLAGS", CONFSTR, _CS_XBS5_ILP32_OFFBIG_LDFLAGS }, + { "XBS5_ILP32_OFFBIG_LIBS", CONFSTR, _CS_XBS5_ILP32_OFFBIG_LIBS }, + { "XBS5_ILP32_OFFBIG_LINTFLAGS", CONFSTR, _CS_XBS5_ILP32_OFFBIG_LINTFLAGS }, + { "XBS5_LP64_OFF64_CFLAGS", CONFSTR, _CS_XBS5_LP64_OFF64_CFLAGS }, + { "XBS5_LP64_OFF64_LDFLAGS", CONFSTR, _CS_XBS5_LP64_OFF64_LDFLAGS }, + { "XBS5_LP64_OFF64_LIBS", CONFSTR, _CS_XBS5_LP64_OFF64_LIBS }, + { "XBS5_LP64_OFF64_LINTFLAGS", CONFSTR, _CS_XBS5_LP64_OFF64_LINTFLAGS }, + { "XBS5_LPBIG_OFFBIG_CFLAGS", CONFSTR, _CS_XBS5_LPBIG_OFFBIG_CFLAGS }, + { "XBS5_LPBIG_OFFBIG_LDFLAGS", CONFSTR, _CS_XBS5_LPBIG_OFFBIG_LDFLAGS }, + { "XBS5_LPBIG_OFFBIG_LIBS", CONFSTR, _CS_XBS5_LPBIG_OFFBIG_LIBS }, + { "XBS5_LPBIG_OFFBIG_LINTFLAGS", CONFSTR, _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS }, + { "XBS5_WIDTH_RESTRICTED_ENVS", CONFSTR, _CS_XBS5_WIDTH_RESTRICTED_ENVS }, + { "V7_ENV", CONFSTR, _CS_V7_ENV }, + { "V6_ENV", CONFSTR, _CS_V6_ENV }, + + /* Symbolic constants from */ + { "_POSIX_AIO_LISTIO_MAX", CONSTANT, _POSIX_AIO_LISTIO_MAX }, + { "_POSIX_AIO_MAX", CONSTANT, _POSIX_AIO_MAX }, + { "_POSIX_ARG_MAX", CONSTANT, _POSIX_ARG_MAX }, + { "_POSIX_CHILD_MAX", CONSTANT, _POSIX_CHILD_MAX }, + { "_POSIX_CLOCKRES_MIN", CONSTANT, _POSIX_CLOCKRES_MIN }, + { "_POSIX_DELAYTIMER_MAX", CONSTANT, _POSIX_DELAYTIMER_MAX }, + { "_POSIX_HOST_NAME_MAX", CONSTANT, _POSIX_HOST_NAME_MAX }, + { "_POSIX_LINK_MAX", CONSTANT, _POSIX_LINK_MAX }, + { "_POSIX_LOGIN_NAME_MAX", CONSTANT, _POSIX_LOGIN_NAME_MAX }, + { "_POSIX_MAX_CANON", CONSTANT, _POSIX_MAX_CANON }, + { "_POSIX_MAX_INPUT", CONSTANT, _POSIX_MAX_INPUT }, + { "_POSIX_MQ_OPEN_MAX", CONSTANT, _POSIX_MQ_OPEN_MAX }, + { "_POSIX_MQ_PRIO_MAX", CONSTANT, _POSIX_MQ_PRIO_MAX }, + { "_POSIX_NAME_MAX", CONSTANT, _POSIX_NAME_MAX }, + { "_POSIX_NGROUPS_MAX", CONSTANT, _POSIX_NGROUPS_MAX }, + { "_POSIX_OPEN_MAX", CONSTANT, _POSIX_OPEN_MAX }, + { "_POSIX_PATH_MAX", CONSTANT, _POSIX_PATH_MAX }, + { "_POSIX_PIPE_BUF", CONSTANT, _POSIX_PIPE_BUF }, + { "_POSIX_RE_DUP_MAX", CONSTANT, _POSIX_RE_DUP_MAX }, + { "_POSIX_RTSIG_MAX", CONSTANT, _POSIX_RTSIG_MAX }, + { "_POSIX_SEM_NSEMS_MAX", CONSTANT, _POSIX_SEM_NSEMS_MAX }, + { "_POSIX_SEM_VALUE_MAX", CONSTANT, _POSIX_SEM_VALUE_MAX }, + { "_POSIX_SIGQUEUE_MAX", CONSTANT, _POSIX_SIGQUEUE_MAX }, + { "_POSIX_SSIZE_MAX", CONSTANT, _POSIX_SSIZE_MAX }, + { "_POSIX_SS_REPL_MAX", CONSTANT, _POSIX_SS_REPL_MAX }, + { "_POSIX_STREAM_MAX", CONSTANT, _POSIX_STREAM_MAX }, + { "_POSIX_SYMLINK_MAX", CONSTANT, _POSIX_SYMLINK_MAX }, + { "_POSIX_SYMLOOP_MAX", CONSTANT, _POSIX_SYMLOOP_MAX }, + { "_POSIX_THREAD_DESTRUCTOR_ITERATIONS", CONSTANT, _POSIX_THREAD_DESTRUCTOR_ITERATIONS }, + { "_POSIX_THREAD_KEYS_MAX", CONSTANT, _POSIX_THREAD_KEYS_MAX }, + { "_POSIX_THREAD_THREADS_MAX", CONSTANT, _POSIX_THREAD_THREADS_MAX }, + { "_POSIX_TIMER_MAX", CONSTANT, _POSIX_TIMER_MAX }, + { "_POSIX_TRACE_EVENT_NAME_MAX", CONSTANT, _POSIX_TRACE_EVENT_NAME_MAX }, + { "_POSIX_TRACE_NAME_MAX", CONSTANT, _POSIX_TRACE_NAME_MAX }, + { "_POSIX_TRACE_SYS_MAX", CONSTANT, _POSIX_TRACE_SYS_MAX }, + { "_POSIX_TRACE_USER_EVENT_MAX", CONSTANT, _POSIX_TRACE_USER_EVENT_MAX }, + { "_POSIX_TTY_NAME_MAX", CONSTANT, _POSIX_TTY_NAME_MAX }, + { "_POSIX_TZNAME_MAX", CONSTANT, _POSIX_TZNAME_MAX }, + { "_POSIX2_BC_BASE_MAX", CONSTANT, _POSIX2_BC_BASE_MAX }, + { "_POSIX2_BC_DIM_MAX", CONSTANT, _POSIX2_BC_DIM_MAX }, + { "_POSIX2_BC_SCALE_MAX", CONSTANT, _POSIX2_BC_SCALE_MAX }, + { "_POSIX2_BC_STRING_MAX", CONSTANT, _POSIX2_BC_STRING_MAX }, + { "_POSIX2_COLL_WEIGHTS_MAX", CONSTANT, _POSIX2_COLL_WEIGHTS_MAX }, + { "_POSIX2_EXPR_NEXT_MAX", CONSTANT, _POSIX2_EXPR_NEST_MAX }, + { "_POSIX2_LINE_MAX", CONSTANT, _POSIX2_LINE_MAX }, + { "_POSIX2_RE_DUP_MAX", CONSTANT, _POSIX2_RE_DUP_MAX }, + { "_XOPEN_IOV_MAX", CONSTANT, _XOPEN_IOV_MAX }, + { "_XOPEN_NAME_MAX", CONSTANT, _XOPEN_NAME_MAX }, + { "_XOPEN_PATH_MAX", CONSTANT, _XOPEN_PATH_MAX }, + { "CHAR_BIT", CONSTANT, CHAR_BIT }, + { "CHAR_MAX", CONSTANT, CHAR_MAX }, + { "CHAR_MIN", CONSTANT, CHAR_MIN }, + { "INT_MAX", CONSTANT, INT_MAX }, + { "INT_MIN", CONSTANT, INT_MIN }, + { "LLONG_MIN", CONSTANT, LLONG_MIN }, + { "LLONG_MAX", CONSTANT, LLONG_MAX }, + { "LONG_BIT", CONSTANT, LONG_BIT }, + { "LONG_MAX", CONSTANT, LONG_MAX }, + { "LONG_MIN", CONSTANT, LONG_MIN }, + { "MB_LEN_MAX", CONSTANT, MB_LEN_MAX }, + { "SCHAR_MAX", CONSTANT, SCHAR_MAX }, + { "SCHAR_MIN", CONSTANT, SCHAR_MIN }, + { "SHRT_MAX", CONSTANT, SHRT_MAX }, + { "SHRT_MIN", CONSTANT, SHRT_MIN }, + { "SSIZE_MAX", CONSTANT, SSIZE_MAX }, + { "UCHAR_MAX", CONSTANT, UCHAR_MAX }, + { "UINT_MAX", CONSTANT, UINT_MAX }, + { "ULLONG_MAX", CONSTANT, ULLONG_MAX }, + { "ULONG_MAX", CONSTANT, ULONG_MAX }, + { "USHRT_MAX", CONSTANT, USHRT_MAX }, + { "WORD_BIT", CONSTANT, WORD_BIT }, + { "NL_ARGMAX", CONSTANT, NL_ARGMAX }, + { "ML_LANGMAX", CONSTANT, NL_LANGMAX }, + { "NL_MSGMAX", CONSTANT, NL_MSGMAX }, + { "NL_SETMAX", CONSTANT, NL_SETMAX }, + { "NL_TEXTMAX", CONSTANT, NL_TEXTMAX }, + { "NZERO", CONSTANT, NZERO }, + /* required by POSIX.1-2008 for compatibility with earlier versions */ + { "POSIX2_BC_BASE_MAX", CONSTANT, _POSIX2_BC_BASE_MAX }, + { "POSIX2_BC_DIM_MAX", CONSTANT, _POSIX2_BC_DIM_MAX }, + { "POSIX2_BC_SCALE_MAX", CONSTANT, _POSIX2_BC_SCALE_MAX }, + { "POSIX2_BC_STRING_MAX", CONSTANT, _POSIX2_BC_STRING_MAX }, + { "POSIX2_COLL_WEIGHTS_MAX", CONSTANT, _POSIX2_COLL_WEIGHTS_MAX }, + { "POSIX2_EXPR_NEXT_MAX", CONSTANT, _POSIX2_EXPR_NEST_MAX }, + { "POSIX2_LINE_MAX", CONSTANT, _POSIX2_LINE_MAX }, + { "POSIX2_RE_DUP_MAX", CONSTANT, _POSIX2_RE_DUP_MAX }, + + /* Variables from fpathconf() */ + { "FILESIZEBITS", PATHCONF, _PC_FILESIZEBITS }, + { "LINK_MAX", PATHCONF, _PC_LINK_MAX }, + { "MAX_CANON", PATHCONF, _PC_MAX_CANON }, + { "MAX_INPUT", PATHCONF, _PC_MAX_INPUT }, + { "NAME_MAX", PATHCONF, _PC_NAME_MAX }, + { "PATH_MAX", PATHCONF, _PC_PATH_MAX }, + { "PIPE_BUF", PATHCONF, _PC_PIPE_BUF }, + { "POSIX2_SYMLINKS", PATHCONF, _PC_2_SYMLINKS }, + { "POSIX_ALLOC_SIZE_MIN", PATHCONF, _PC_ALLOC_SIZE_MIN }, + { "POSIX_REC_INCR_XFER_SIZE", PATHCONF, _PC_REC_INCR_XFER_SIZE }, + { "POSIX_REC_MAX_XFER_SIZE", PATHCONF, _PC_REC_MAX_XFER_SIZE }, + { "POSIX_REC_MIN_XFER_SIZE", PATHCONF, _PC_REC_MIN_XFER_SIZE }, + { "POSIX_REC_XFER_ALIGN", PATHCONF, _PC_REC_XFER_ALIGN }, + { "SYMLINK_MAX", PATHCONF, _PC_SYMLINK_MAX }, + { "_POSIX_CHOWN_RESTRICTED", PATHCONF, _PC_CHOWN_RESTRICTED }, + { "_POSIX_NO_TRUNC", PATHCONF, _PC_NO_TRUNC }, + { "_POSIX_VDISABLE", PATHCONF, _PC_VDISABLE }, + { "_POSIX_ASYNC_IO", PATHCONF, _PC_ASYNC_IO }, + { "_POSIX_PRIO_IO", PATHCONF, _PC_PRIO_IO }, + { "_POSIX_SYNC_IO", PATHCONF, _PC_SYNC_IO }, + { "_POSIX_TIMESTAMP_RESOLUTION", PATHCONF, _PC_TIMESTAMP_RESOLUTION }, + + /* Variables from sysconf() */ + { "AIO_LISTIO_MAX", SYSCONF, _SC_AIO_LISTIO_MAX }, + { "AIO_MAX", SYSCONF, _SC_AIO_MAX }, + { "AIO_PRIO_DELTA_MAX", SYSCONF, _SC_AIO_PRIO_DELTA_MAX }, + { "ARG_MAX", SYSCONF, _SC_ARG_MAX }, + { "ATEXIT_MAX", SYSCONF, _SC_ATEXIT_MAX }, + { "BC_BASE_MAX", SYSCONF, _SC_BC_BASE_MAX }, + { "BC_DIM_MAX", SYSCONF, _SC_BC_DIM_MAX }, + { "BC_SCALE_MAX", SYSCONF, _SC_BC_SCALE_MAX }, + { "BC_STRING_MAX", SYSCONF, _SC_BC_STRING_MAX }, + { "CHILD_MAX", SYSCONF, _SC_CHILD_MAX }, + { "CLK_TCK", SYSCONF, _SC_CLK_TCK }, + { "COLL_WEIGHTS_MAX", SYSCONF, _SC_COLL_WEIGHTS_MAX }, + { "DELAYTIMER_MAX", SYSCONF, _SC_DELAYTIMER_MAX }, + { "EXPR_NEST_MAX", SYSCONF, _SC_EXPR_NEST_MAX }, + { "GETGR_R_SIZE_MAX", SYSCONF, _SC_GETGR_R_SIZE_MAX }, + { "GETPW_R_SIZE_MAX", SYSCONF, _SC_GETPW_R_SIZE_MAX }, + { "HOST_NAME_MAX", SYSCONF, _SC_HOST_NAME_MAX }, + { "IOV_MAX", SYSCONF, _SC_IOV_MAX }, + { "LINE_MAX", SYSCONF, _SC_LINE_MAX }, + { "LOGIN_NAME_MAX", SYSCONF, _SC_LOGIN_NAME_MAX }, + { "MQ_OPEN_MAX", SYSCONF, _SC_MQ_OPEN_MAX }, + { "MQ_PRIO_MAX", SYSCONF, _SC_MQ_PRIO_MAX }, + { "NGROUPS_MAX", SYSCONF, _SC_NGROUPS_MAX }, + { "OPEN_MAX", SYSCONF, _SC_OPEN_MAX }, + { "PAGE_SIZE", SYSCONF, _SC_PAGESIZE }, + { "PAGESIZE", SYSCONF, _SC_PAGESIZE }, + { "PTHREAD_DESTRUCTOR_ITERATIONS", SYSCONF, _SC_THREAD_DESTRUCTOR_ITERATIONS }, + { "PTHREAD_KEYS_MAX", SYSCONF, _SC_THREAD_KEYS_MAX }, + { "PTHREAD_STACK_MIN", SYSCONF, _SC_THREAD_STACK_MIN }, + { "PTHREAD_THREADS_MAX", SYSCONF, _SC_THREAD_THREADS_MAX }, + { "RE_DUP_MAX", SYSCONF, _SC_RE_DUP_MAX }, + { "RTSIG_MAX", SYSCONF, _SC_RTSIG_MAX }, + { "SEM_NSEMS_MAX", SYSCONF, _SC_SEM_NSEMS_MAX }, + { "SEM_VALUE_MAX", SYSCONF, _SC_SEM_VALUE_MAX }, + { "SIGQUEUE_MAX", SYSCONF, _SC_SIGQUEUE_MAX }, + { "STREAM_MAX", SYSCONF, _SC_STREAM_MAX }, + { "SYMLOOP_MAX", SYSCONF, _SC_SYMLOOP_MAX }, + { "TIMER_MAX", SYSCONF, _SC_TIMER_MAX }, + { "TTY_NAME_MAX", SYSCONF, _SC_TTY_NAME_MAX }, + { "TZNAME_MAX", SYSCONF, _SC_TZNAME_MAX }, + { "_POSIX_ADVISORY_INFO", SYSCONF, _SC_ADVISORY_INFO }, + { "_POSIX_ASYNCHRONOUS_IO", SYSCONF, _SC_ASYNCHRONOUS_IO }, + { "_POSIX_BARRIERS", SYSCONF, _SC_BARRIERS }, + { "_POSIX_CLOCK_SELECTION", SYSCONF, _SC_CLOCK_SELECTION }, + { "_POSIX_CPUTIME", SYSCONF, _SC_CPUTIME }, + { "_POSIX_FSYNC", SYSCONF, _SC_FSYNC }, + { "_POSIX_IPV6", SYSCONF, _SC_IPV6 }, + { "_POSIX_JOB_CONTROL", SYSCONF, _SC_JOB_CONTROL }, + { "_POSIX_MAPPED_FILES", SYSCONF, _SC_MAPPED_FILES }, + { "_POSIX_MEMLOCK", SYSCONF, _SC_MEMLOCK }, + { "_POSIX_MEMLOCK_RANGE", SYSCONF, _SC_MEMLOCK_RANGE }, + { "_POSIX_MEMORY_PROTECTION", SYSCONF, _SC_MEMORY_PROTECTION }, + { "_POSIX_MESSAGE_PASSING", SYSCONF, _SC_MESSAGE_PASSING }, + { "_POSIX_MONOTONIC_CLOCK", SYSCONF, _SC_MONOTONIC_CLOCK }, + { "_POSIX_PRIORITIZED_IO", SYSCONF, _SC_PRIORITIZED_IO }, + { "_POSIX_PRIORITY_SCHEDULING", SYSCONF, _SC_PRIORITY_SCHEDULING }, + { "_POSIX_RAW_SOCKETS", SYSCONF, _SC_RAW_SOCKETS }, + { "_POSIX_READER_WRITER_LOCKS", SYSCONF, _SC_READER_WRITER_LOCKS }, + { "_POSIX_REALTIME_SIGNALS", SYSCONF, _SC_REALTIME_SIGNALS }, + { "_POSIX_REGEXP", SYSCONF, _SC_REGEXP }, + { "_POSIX_SAVED_IDS", SYSCONF, _SC_SAVED_IDS }, + { "_POSIX_SEMAPHORES", SYSCONF, _SC_SEMAPHORES }, + { "_POSIX_SHARED_MEMORY_OBJECTS", SYSCONF, _SC_SHARED_MEMORY_OBJECTS }, + { "_POSIX_SHELL", SYSCONF, _SC_SHELL }, + { "_POSIX_SPAWN", SYSCONF, _SC_SPAWN }, + { "_POSIX_SPIN_LOCKS", SYSCONF, _SC_SPIN_LOCKS }, + { "_POSIX_SPORADIC_SERVER", SYSCONF, _SC_SPORADIC_SERVER }, + { "_POSIX_SS_REPL_MAX", SYSCONF, _SC_SS_REPL_MAX }, + { "_POSIX_SYNCHRONIZED_IO", SYSCONF, _SC_SYNCHRONIZED_IO }, + { "_POSIX_THREAD_ATTR_STACKADDR", SYSCONF, _SC_THREAD_ATTR_STACKADDR }, + { "_POSIX_THREAD_ATTR_STACKSIZE", SYSCONF, _SC_THREAD_ATTR_STACKSIZE }, + { "_POSIX_THREAD_CPUTIME", SYSCONF, _SC_THREAD_CPUTIME }, + { "_POSIX_THREAD_PRIO_INHERIT", SYSCONF, _SC_THREAD_PRIO_INHERIT }, + { "_POSIX_THREAD_PRIO_PROTECT", SYSCONF, _SC_THREAD_PRIO_PROTECT }, + { "_POSIX_THREAD_PRIORITY_SCHEDULING",SYSCONF, _SC_THREAD_PRIORITY_SCHEDULING }, + { "_POSIX_THREAD_PROCESS_SHARED", SYSCONF, _SC_THREAD_PROCESS_SHARED }, + { "_POSIX_THREAD_ROBUST_PRIO_INHERIT",SYSCONF, _SC_THREAD_ROBUST_PRIO_INHERIT }, + { "_POSIX_THREAD_ROBUST_PRIO_PROTECT",SYSCONF, _SC_THREAD_ROBUST_PRIO_PROTECT }, + { "_POSIX_THREAD_SAFE_FUNCTIONS", SYSCONF, _SC_THREAD_SAFE_FUNCTIONS }, + { "_POSIX_THREAD_SPORADIC_SERVER", SYSCONF, _SC_THREAD_SPORADIC_SERVER }, + { "_POSIX_THREADS", SYSCONF, _SC_THREADS }, + { "_POSIX_TIMEOUTS", SYSCONF, _SC_TIMEOUTS }, + { "_POSIX_TIMERS", SYSCONF, _SC_TIMERS }, + { "_POSIX_TRACE", SYSCONF, _SC_TRACE }, + { "_POSIX_TRACE_EVENT_FILTER", SYSCONF, _SC_TRACE_EVENT_FILTER }, + { "_POSIX_TRACE_EVENT_NAME_MAX", SYSCONF, _SC_TRACE_EVENT_NAME_MAX }, + { "_POSIX_TRACE_INHERIT", SYSCONF, _SC_TRACE_INHERIT }, + { "_POSIX_TRACE_LOG", SYSCONF, _SC_TRACE_LOG }, + { "_POSIX_TRACE_NAME_MAX", SYSCONF, _SC_TRACE_NAME_MAX }, + { "_POSIX_TRACE_SYS_MAX", SYSCONF, _SC_TRACE_SYS_MAX }, + { "_POSIX_TRACE_USER_EVENT_MAX", SYSCONF, _SC_TRACE_USER_EVENT_MAX }, + { "_POSIX_TYPED_MEMORY_OBJECTS", SYSCONF, _SC_TYPED_MEMORY_OBJECTS }, + { "_POSIX_VERSION", SYSCONF, _SC_VERSION }, + { "_POSIX_V7_ILP32_OFF32", SYSCONF, _SC_V7_ILP32_OFF32 }, + { "_POSIX_V7_ILP32_OFFBIG", SYSCONF, _SC_V7_ILP32_OFFBIG }, + { "_POSIX_V7_LP64_OFF64", SYSCONF, _SC_V7_LP64_OFF64 }, + { "_POSIX_V7_LPBIG_OFFBIG", SYSCONF, _SC_V7_LPBIG_OFFBIG }, + { "_POSIX_V6_ILP32_OFF32", SYSCONF, _SC_V6_ILP32_OFF32 }, + { "_POSIX_V6_ILP32_OFFBIG", SYSCONF, _SC_V6_ILP32_OFFBIG }, + { "_POSIX_V6_LP64_OFF64", SYSCONF, _SC_V6_LP64_OFF64 }, + { "_POSIX_V6_LPBIG_OFFBIG", SYSCONF, _SC_V6_LPBIG_OFFBIG }, + { "_POSIX2_C_BIND", SYSCONF, _SC_2_C_BIND }, + { "_POSIX2_C_DEV", SYSCONF, _SC_2_C_DEV }, + { "_POSIX2_CHAR_TERM", SYSCONF, _SC_2_CHAR_TERM }, + { "_POSIX2_FORT_DEV", SYSCONF, _SC_2_FORT_DEV }, + { "_POSIX2_FORT_RUN", SYSCONF, _SC_2_FORT_RUN }, + { "_POSIX2_LOCALEDEF", SYSCONF, _SC_2_LOCALEDEF }, + { "_POSIX2_PBS", SYSCONF, _SC_2_PBS }, + { "_POSIX2_PBS_ACCOUNTING", SYSCONF, _SC_2_PBS_ACCOUNTING }, + { "_POSIX2_PBS_CHECKPOINT", SYSCONF, _SC_2_PBS_CHECKPOINT }, + { "_POSIX2_PBS_LOCATE", SYSCONF, _SC_2_PBS_LOCATE }, + { "_POSIX2_PBS_MESSAGE", SYSCONF, _SC_2_PBS_MESSAGE }, + { "_POSIX2_PBS_TRACK", SYSCONF, _SC_2_PBS_TRACK }, + { "_POSIX2_SW_DEV", SYSCONF, _SC_2_SW_DEV }, + { "_POSIX2_UPE", SYSCONF, _SC_2_UPE }, + { "_POSIX2_VERSION", SYSCONF, _SC_2_VERSION }, + { "_XBS5_ILP32_OFF32", SYSCONF, _SC_XBS5_ILP32_OFF32 }, + { "_XBS5_ILP32_OFFBIG", SYSCONF, _SC_XBS5_ILP32_OFFBIG }, + { "_XBS5_LP64_OFF64", SYSCONF, _SC_XBS5_LP64_OFF64 }, + { "_XBS5_LPBIG_OFFBIG", SYSCONF, _SC_XBS5_LPBIG_OFFBIG }, + { "_XOPEN_CRYPT", SYSCONF, _SC_XOPEN_CRYPT }, + { "_XOPEN_ENH_I18N", SYSCONF, _SC_XOPEN_ENH_I18N }, + { "_XOPEN_LEGACY", SYSCONF, _SC_XOPEN_LEGACY }, + { "_XOPEN_REALTIME", SYSCONF, _SC_XOPEN_REALTIME }, + { "_XOPEN_REALTIME_THREADS", SYSCONF, _SC_XOPEN_REALTIME_THREADS }, + { "_XOPEN_SHM", SYSCONF, _SC_XOPEN_SHM }, + { "_XOPEN_STREAMS", SYSCONF, _SC_XOPEN_STREAMS }, + { "_XOPEN_UNIX", SYSCONF, _SC_XOPEN_UNIX }, + { "_XOPEN_UUCP", SYSCONF, _SC_XOPEN_UUCP }, + { "_XOPEN_VERSION", SYSCONF, _SC_XOPEN_VERSION }, + /* for compatibility with earlier versions */ + { "POSIX2_C_BIND", SYSCONF, _SC_2_C_BIND }, + { "POSIX2_C_DEV", SYSCONF, _SC_2_C_DEV }, + { "POSIX2_CHAR_TERM", SYSCONF, _SC_2_CHAR_TERM }, + { "POSIX2_FORT_DEV", SYSCONF, _SC_2_FORT_DEV }, + { "POSIX2_FORT_RUN", SYSCONF, _SC_2_FORT_RUN }, + { "POSIX2_LOCALEDEF", SYSCONF, _SC_2_LOCALEDEF }, + { "POSIX2_PBS", SYSCONF, _SC_2_PBS }, + { "POSIX2_PBS_ACCOUNTING", SYSCONF, _SC_2_PBS_ACCOUNTING }, + { "POSIX2_PBS_CHECKPOINT", SYSCONF, _SC_2_PBS_CHECKPOINT }, + { "POSIX2_PBS_LOCATE", SYSCONF, _SC_2_PBS_LOCATE }, + { "POSIX2_PBS_MESSAGE", SYSCONF, _SC_2_PBS_MESSAGE }, + { "POSIX2_PBS_TRACK", SYSCONF, _SC_2_PBS_TRACK }, + { "POSIX2_SW_DEV", SYSCONF, _SC_2_SW_DEV }, + { "POSIX2_UPE", SYSCONF, _SC_2_UPE }, + { "POSIX2_VERSION", SYSCONF, _SC_2_VERSION }, + /* implementation-specific values */ + { "_NPROCESSORS_CONF", SYSCONF, _SC_NPROCESSORS_CONF }, + { "_NPROCESSORS_ONLN", SYSCONF, _SC_NPROCESSORS_ONLN }, + { "_AVPHYS_PAGES", SYSCONF, _SC_AVPHYS_PAGES }, + { "_PHYS_PAGES", SYSCONF, _SC_PHYS_PAGES }, + + { NULL, CONSTANT, 0L } +}; + +struct spec_variable { + const char *name; + int valid; +}; + +static const struct spec_variable spec_table[] = { + { "POSIX_V7_ILP32_OFF32", 0 }, + { "POSIX_V7_ILP32_OFFBIG", 1 }, + { "POSIX_V7_LP64_OFF64", 0 }, + { "POSIX_V7_LPBIG_OFFBIG", 0 }, + { "POSIX_V6_ILP32_OFF32", 0 }, + { "POSIX_V6_ILP32_OFFBIG", 1 }, + { "POSIX_V6_LP64_OFF64", 0 }, + { "POSIX_V6_LPBIG_OFFBIG", 0 }, + { "XBS5_ILP32_OFF32", 0 }, + { "XBS5_ILP32_OFFBIG", 1 }, + { "XBS5_LP64_OFF64", 0 }, + { "XBS5_LPBIG_OFFBIG", 0 }, + { NULL, 0 }, +}; + +static int a_flag = 0; /* list all variables */ +static int v_flag = 0; /* follow given specification */ + +static void +print_longvar (const char *name, long long value) +{ + if (a_flag) + printf ("%-35s %lld\n", name, value); + else + printf ("%lld\n", value); +} + +static void +print_strvar (const char *name, const char *sval) +{ + if (a_flag) + printf ("%-35s %s\n", name, sval); + else + printf ("%s\n", sval); +} + +static void +printvar (const struct conf_variable *cp, const char *pathname) +{ + size_t slen; + char *sval; + long val; + + switch (cp->type) + { + case CONSTANT: + print_longvar (cp->name, cp->value); + break; + + case CONFSTR: + errno = 0; + slen = confstr ((int) cp->value, NULL, 0); + if (slen == 0) + { + if (errno == 0) + print_strvar (cp->name, "undefined"); + return; + } + + if ((sval = malloc (slen)) == NULL) + error (EXIT_FAILURE, 0, "Can't allocate %zu bytes", slen); + + errno = 0; + if (confstr ((int) cp->value, sval, slen) == 0) + print_strvar (cp->name, "undefined"); + else + print_strvar (cp->name, sval); + + free (sval); + break; + + case SYSCONF: + errno = 0; + if ((val = sysconf ((int) cp->value)) == -1) + { + if (a_flag && errno != 0) + return; /* Just skip invalid variables */ + print_strvar (cp->name, "undefined"); + } + else + print_longvar (cp->name, val); + break; + + case PATHCONF: + errno = 0; + if ((val = pathconf (pathname, (int) cp->value)) == -1) + { + if (a_flag && errno != 0) + return; /* Just skip invalid variables */ + print_strvar (cp->name, "undefined"); + } + else + print_longvar (cp->name, val); + break; + } +} + +static void +usage (void) +{ + fprintf (stderr, + "Usage: %s [-v specification] variable_name [pathname]\n" + " %s -a [pathname]\n", + program_invocation_short_name, program_invocation_short_name); + exit (EXIT_FAILURE); +} + +int +main (int argc, char **argv) +{ + int ch; + const struct conf_variable *cp; + const struct spec_variable *sp; + const char *varname, *pathname; + int found; + + setlocale (LC_ALL, ""); + + while ((ch = getopt (argc, argv, "av")) != -1) + { + switch (ch) + { + case 'a': + a_flag = 1; + break; + case 'v': + v_flag = 1; + break; + case '?': + default: + usage (); + } + } + argc -= optind; + argv += optind; + + if (v_flag) + { + if (a_flag || argc < 2) + usage (); + for (sp = spec_table; sp->name != NULL; sp++) + { + if (strcmp (argv[0], sp->name) == 0) + { + if (sp->valid != 1) + error (EXIT_FAILURE, 0, "unsupported specification \"%s\"", argv[0]); + break; + } + } + if (sp->name == NULL) + error (EXIT_FAILURE, 0, "unknown specification \"%s\"", argv[0]); + argc--; + argv++; + } + + if (!a_flag) + { + if (argc == 0) + usage (); + varname = argv[0]; + argc--; + argv++; + } + else + varname = NULL; + + if (argc > 1) + usage (); + pathname = argv[0]; /* may be NULL */ + + found = 0; + for (cp = conf_table; cp->name != NULL; cp++) + { + if (a_flag || strcmp (varname, cp->name) == 0) + { + /* LINTED weird expression */ + if ((cp->type == PATHCONF) == (pathname != NULL)) + { + printvar (cp, pathname); + found = 1; + } + else if (!a_flag) + usage (); + } + } + + if (!a_flag && !found) + error (EXIT_FAILURE, 0, "Unrecognized variable `%s'", varname); + + fflush (stdout); + return ferror (stdout) ? EXIT_FAILURE : EXIT_SUCCESS; +} +