Completely revamp the way getconf(1) works, for better adherence to the
intent of the Standard. - Make getconf able to distinguish between configuration variables which are entirely unknown and those which are merely not defined in the compilation environment. The latter now get a more appropriate "undefined\n" result rather than a diagnostic. This may not be exactly right, but it's closer to the intent of the Standard than the previous behavior. - Support ``programming environments'' by validating that the environment requested with the `-v' flag is the one-and-only execution environment. (If more environments are supported for some platforms in the future, multiple getconf(1) executables will be required, but a simple edit in progenv.gperf will enable automatic support for it.) Document POSIX standard programming environments. - Add all of the 1003.1-2001 configuration variables. FreeBSD does not support all of these (including some that are mandatory); getconf will later be fixed to break the world should a required variable not be defined. As a result of all these changes, gperf is no longer adequate. Keep the overall format and names of the files for now, to preserve revision history. Use an awk script to process the .gperf files into C source, which does a few things that gperf, as a more general tool, cannot do. The keyword recognition function is no longer a perfect hash function. This may obviate the need for gperf in the source tree. - Add a small compile-time regression test to break the build if any of the .gperf files declare conflicting token sets. (gperf itself would have done this for the simple case of duplicate tokens in the same input file.)
This commit is contained in:
Garrett Wollman
parent
a72f2b1a91
commit
e9cfb9ae3a
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=103591
@ -2,13 +2,35 @@
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PROG= getconf
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SRCS= confstr.c getconf.c pathconf.c sysconf.c
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SRCS= confstr.c getconf.c limits.c pathconf.c progenv.c sysconf.c
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CFLAGS+= -I${.CURDIR}
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CLEANFILES+= confstr.c pathconf.c sysconf.c
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CLEANFILES+= confstr.c limits.c pathconf.c progenv.c sysconf.c \
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confstr.names limits.names pathconf.names sysconf.names \
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conflicting.names unique.names
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.SUFFIXES: .gperf
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.SUFFIXES: .gperf .names
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.PHONY: conflicts
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all: conflicts
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.gperf.c:
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gperf -t -L ANSI-C -C -k 1,2,7-10,21,'$$' ${.IMPSRC} >${.TARGET}
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awk -f ${.CURDIR}/fake-gperf.awk ${.IMPSRC} >${.TARGET}
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.gperf.names:
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awk '/^[_A-Z]/ { print; }' ${.IMPSRC} | sed -e 's/,$$//' >${.TARGET}
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conflicts: conflicting.names unique.names
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@if test `wc -l <conflicting.names` != `wc -l <unique.names`; then \
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echo "Name conflicts found!" >&2; \
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exit 1; \
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fi
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# pathconf.names is not included here because pathconf names are
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# syntactically distinct from the other kinds.
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conflicting.names: confstr.names limits.names sysconf.names
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cat ${.ALLSRC} >${.TARGET}
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unique.names: conflicting.names
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sort -u ${.ALLSRC} >${.TARGET}
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.include <bsd.prog.mk>
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@ -17,8 +17,13 @@
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*/
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static const struct map *in_word_set(const char *str, unsigned int len);
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/*
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* The Standard seems a bit ambiguous over whether the POSIX_V6_*
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* are specified with or without a leading underscore, so we just
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* use both.
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*/
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%}
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struct map { const char *name; int key; };
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struct map { const char *name; int key; int valid; };
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%%
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PATH, _CS_PATH
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POSIX_V6_ILP32_OFF32_CFLAGS, _CS_POSIX_V6_ILP32_OFF32_CFLAGS
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@ -34,15 +39,32 @@ POSIX_V6_LPBIG_OFFBIG_CFLAGS, _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS
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POSIX_V6_LPBIG_OFFBIG_LDFLAGS, _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS
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POSIX_V6_LPBIG_OFFBIG_LIBS, _CS_POSIX_V6_LPBIG_OFFBIG_LIBS
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POSIX_V6_WIDTH_RESTRICTED_ENVS, _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS
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_POSIX_V6_ILP32_OFF32_CFLAGS, _CS_POSIX_V6_ILP32_OFF32_CFLAGS
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_POSIX_V6_ILP32_OFF32_LDFLAGS, _CS_POSIX_V6_ILP32_OFF32_LDFLAGS
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_POSIX_V6_ILP32_OFF32_LIBS, _CS_POSIX_V6_ILP32_OFF32_LIBS
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_POSIX_V6_ILP32_OFFBIG_CFLAGS, _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS
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_POSIX_V6_ILP32_OFFBIG_LDFLAGS, _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS
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_POSIX_V6_ILP32_OFFBIG_LIBS, _CS_POSIX_V6_ILP32_OFFBIG_LIBS
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_POSIX_V6_LP64_OFF64_CFLAGS, _CS_POSIX_V6_LP64_OFF64_CFLAGS
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_POSIX_V6_LP64_OFF64_LDFLAGS, _CS_POSIX_V6_LP64_OFF64_LDFLAGS
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_POSIX_V6_LP64_OFF64_LIBS, _CS_POSIX_V6_LP64_OFF64_LIBS
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_POSIX_V6_LPBIG_OFFBIG_CFLAGS, _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS
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_POSIX_V6_LPBIG_OFFBIG_LDFLAGS, _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS
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_POSIX_V6_LPBIG_OFFBIG_LIBS, _CS_POSIX_V6_LPBIG_OFFBIG_LIBS
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_POSIX_V6_WIDTH_RESTRICTED_ENVS, _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS
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%%
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int
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find_confstr(const char *name)
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find_confstr(const char *name, int *key)
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{
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const struct map *rv;
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rv = in_word_set(name, strlen(name));
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if (rv != 0)
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return rv->key;
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else
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if (rv != NULL) {
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if (rv->valid) {
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*key = rv->key;
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return 1;
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}
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return -1;
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}
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return 0;
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}
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@ -1,12 +1,8 @@
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#!/usr/bin/awk -f
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#
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# This file is in the public domain. Written by Garrett A. Wollman,
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# 2002-09-17.
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#
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# $FreeBSD$
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#
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BEGIN {
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state = 0;
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struct_seen = "";
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}
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/^%{$/ && state == 0 {
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state = 1;
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@ -17,25 +13,36 @@ BEGIN {
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next;
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}
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state == 1 { print; next; }
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/^struct/ && state == 0 {
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print;
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struct_seen = $2;
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next;
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}
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/^%%$/ && state == 0 {
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state = 2;
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print "#include <stddef.h>";
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print "#include <string.h>";
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print "static const struct map {";
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print "\tconst char *name;";
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print "\tint key;";
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print "} wordlist[] = {";
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if (struct_seen !~ /^$/) {
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print "static const struct", struct_seen, "wordlist[] = {";
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} else {
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print "static const struct map {";
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print "\tconst char *name;";
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print "\tint key;";
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print "\tint valid;";
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print "} wordlist[] = {";
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struct_seen = "map";
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}
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next;
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}
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/^%%$/ && state == 2 {
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state = 3;
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print "\t{ NULL }";
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print "};";
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print "#define\tNWORDS\t(sizeof(wordlist)/sizeof(wordlist[0]))";
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print "#define\tNWORDS\t(sizeof(wordlist)/sizeof(wordlist[0]) - 1)";
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print "static const struct map *";
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print "in_word_set(const char *word, unsigned int len)";
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print "{";
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print "\tconst struct map *mp;";
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print "\tconst struct", struct_seen, "*mp;";
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print "";
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print "\tfor (mp = wordlist; mp < &wordlist[NWORDS]; mp++) {";
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print "\t\tif (strcmp(word, mp->name) == 0)";
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@ -48,7 +55,11 @@ state == 1 { print; next; }
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}
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state == 2 && NF == 2 {
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name = substr($1, 1, length($1) - 1);
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printf "\t{ \"%s\", %s },\n", name, $2;
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printf "#ifdef %s\n", $2;
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printf "\t{ \"%s\", %s, 1 },\n", name, $2;
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print "#else";
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printf "\t{ \"%s\", 0, 0 },\n", name, $2;
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print "#endif"
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next;
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}
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state == 3 { print; next; }
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@ -28,7 +28,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd April 25, 2000
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.Dd September 18, 2002
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.Dt GETCONF 1
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.Os
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.Sh NAME
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@ -65,8 +65,14 @@ configuration variables using
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and
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.Xr sysconf 3 ,
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depending on the type of variable.
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As an extension, the second form can also be used to query static limits from
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.Aq Pa limits.h .
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.Pp
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All variables use the same name as the manifest constants defined in
|
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All
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||||
.Xr sysconf 3
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and
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.Xr pathconf 2
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variables use the same name as the manifest constants defined in
|
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the relevant standard C-language bindings, including any leading
|
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underscore or prefix.
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That is to say,
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@ -81,33 +87,82 @@ names
|
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.Dv _SC_ARG_MAX
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or
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.Dv _SC_POSIX_VERSION .
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(There is one exception: there is no corresponding manifest constant
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to
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.Dv _CS_PATH ,
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so a
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Variables retrieved from
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.Xr confstr 3
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have the leading
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.Ql _CS_
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stripped off; thus,
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.Dv _CS_PATH
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is queried by a
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.Ar system_var
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of
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.Dq Li PATH
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||||
is used.)
|
||||
.Pp
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.Dq Li PATH .
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.Ss Programming Environments
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The
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.Fl v Ar environment
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option is not supported, but provided for compatibility purposes.
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option specifies a
|
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.St -p1003.1-2001
|
||||
programming environment under which the values are to be queried.
|
||||
This option currently does nothing, but may in the future be used
|
||||
to select between 32-bit and 64-bit execution environments on platforms
|
||||
which support both.
|
||||
Specifying an environment which is not supported on the current execution
|
||||
platform gives undefined results.
|
||||
.Pp
|
||||
The standard programming environments are as follows:
|
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.Bl -tag -width ".Li POSIX_V6_LPBIG_OFFBIG" -offset indent
|
||||
.It Li POSIX_V6_ILP32_OFF32
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||||
Exactly 32-bit integer, long, pointer, and file offset.
|
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.Sy Supported platforms :
|
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None.
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||||
.It Li POSIX_V6_ILP32_OFFBIG
|
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Exactly 32-bit integer, long, and pointer; at least 64-bit file offset.
|
||||
.Sy Supported platforms :
|
||||
.Tn IA32 ,
|
||||
.Tn PowerPC .
|
||||
.It Li POSIX_V6_LP64_OFF64
|
||||
Exactly 32-bit integer; exactly 64-bit long, pointer, and file offset.
|
||||
.Sy Supported platforms :
|
||||
.Tn Alpha ,
|
||||
.Tn SPARC64 .
|
||||
.It Li POSIX_V6_LPBIG_OFFBIG
|
||||
At least 32-bit integer; at least 64-bit long, pointer, and file offset.
|
||||
.Sy Supported platforms :
|
||||
None.
|
||||
.El
|
||||
.Pp
|
||||
The command:
|
||||
.Bd -literal -offset indent
|
||||
getconf POSIX_V6_WIDTH_RESTRICTED_ENVS
|
||||
.Ed
|
||||
.Pp
|
||||
returns a newline-separated list of environments in which the width
|
||||
of certain fundamental types is no greater than the width of the native
|
||||
C type
|
||||
.Ql long .
|
||||
At present, all programming environments supported by
|
||||
.Fx
|
||||
have this property.
|
||||
Several of the
|
||||
.Xr confstr 3
|
||||
variables provide information on the necessary compiler and linker flags
|
||||
to use the standard programming environments described above.
|
||||
.Sh DIAGNOSTICS
|
||||
.Ex -std
|
||||
Use of a
|
||||
.Ar system_var
|
||||
or
|
||||
.Ar path_var
|
||||
which is completely unknown to the system is considered an error,
|
||||
causing a diagnostic message to be written to standard error; one
|
||||
which is completely unrecognized is considered an error,
|
||||
causing a diagnostic message to be written to standard error.
|
||||
One
|
||||
which is known but merely undefined does not result in an error
|
||||
indication.
|
||||
.Pp
|
||||
Use of the unsupported
|
||||
.Fl v Ar environment
|
||||
option will result in a diagnostic message indicating that it is not
|
||||
supported.
|
||||
The
|
||||
.Nm
|
||||
command recognizes all of the variables defined for
|
||||
.St -p1003.1-2001 ,
|
||||
including those which are not currently implemented.
|
||||
.Sh EXAMPLES
|
||||
The command:
|
||||
.Bd -literal -offset indent
|
||||
@ -126,6 +181,18 @@ getconf NAME_MAX /tmp
|
||||
will display the maximum length of a filename in the
|
||||
.Pa /tmp
|
||||
directory.
|
||||
.Pp
|
||||
The command:
|
||||
.Bd -literal -offset indent
|
||||
getconf -v POSIX_V6_LPBIG_OFFBIG LONG_MAX
|
||||
.Ed
|
||||
.Pp
|
||||
will display the maximum value of the C type
|
||||
.Ql long
|
||||
in the
|
||||
.Li POSIX_V6_LPBIG_OFFBIG
|
||||
programming environment,
|
||||
if the system supports that environment.
|
||||
.Sh SEE ALSO
|
||||
.Xr pathconf 2 ,
|
||||
.Xr confstr 3 ,
|
||||
@ -134,7 +201,7 @@ directory.
|
||||
The
|
||||
.Nm
|
||||
utility is expected to be compliant with
|
||||
.St -susv2 .
|
||||
.St -p1003.1-2001 .
|
||||
.Sh HISTORY
|
||||
The
|
||||
.Nm
|
||||
|
||||
@ -49,20 +49,19 @@ static void
|
||||
usage(void)
|
||||
{
|
||||
fprintf(stderr, "usage:\n"
|
||||
"\tgetconf [-v prog_model] system_var\n"
|
||||
"\tgetconf [-v prog_model] path_var pathname\n");
|
||||
"\tgetconf [-v prog_env] system_var\n"
|
||||
"\tgetconf [-v prog_env] path_var pathname\n");
|
||||
exit(EX_USAGE);
|
||||
}
|
||||
|
||||
int
|
||||
main(int argc, char **argv)
|
||||
{
|
||||
int c;
|
||||
const char *name, *vflag;
|
||||
int key;
|
||||
|
||||
vflag = 0;
|
||||
int c, key, valid;
|
||||
const char *name, *vflag, *alt_path;
|
||||
intmax_t limitval;
|
||||
|
||||
vflag = NULL;
|
||||
while ((c = getopt(argc, argv, "v:")) != -1) {
|
||||
switch (c) {
|
||||
case 'v':
|
||||
@ -74,31 +73,61 @@ main(int argc, char **argv)
|
||||
}
|
||||
}
|
||||
|
||||
if (vflag)
|
||||
warnx("-v %s ignored", vflag);
|
||||
|
||||
/* No arguments... */
|
||||
if ((name = argv[optind]) == 0)
|
||||
if ((name = argv[optind]) == NULL)
|
||||
usage();
|
||||
|
||||
if (argv[optind + 1] == 0) { /* confstr or sysconf */
|
||||
key = find_confstr(name);
|
||||
if (key >= 0) {
|
||||
do_confstr(name, key);
|
||||
if (vflag != NULL) {
|
||||
if ((valid = find_progenv(vflag, &alt_path)) == 0)
|
||||
errx(EX_USAGE, "invalid programming environment %s",
|
||||
vflag);
|
||||
if (valid > 0 && alt_path != NULL) {
|
||||
if (argv[optind + 1] == NULL)
|
||||
execl(alt_path, "getconf", argv[optind],
|
||||
(char *)NULL);
|
||||
else
|
||||
execl(alt_path, "getconf", argv[optind],
|
||||
argv[optind + 1], (char *)NULL);
|
||||
|
||||
err(EX_OSERR, "execl: %s", alt_path);
|
||||
}
|
||||
if (valid < 0)
|
||||
errx(EX_UNAVAILABLE, "environment %s is not available",
|
||||
vflag);
|
||||
}
|
||||
|
||||
if (argv[optind + 1] == NULL) { /* confstr or sysconf */
|
||||
if ((valid = find_limit(name, &limitval)) != 0) {
|
||||
if (valid > 0)
|
||||
printf("%jd\n", limitval);
|
||||
else
|
||||
printf("undefined\n");
|
||||
|
||||
return 0;
|
||||
}
|
||||
if ((valid = find_confstr(name, &key)) != 0) {
|
||||
if (valid > 0)
|
||||
do_confstr(name, key);
|
||||
else
|
||||
printf("undefined\n");
|
||||
} else {
|
||||
key = find_sysconf(name);
|
||||
if (key >= 0)
|
||||
valid = find_sysconf(name, &key);
|
||||
if (valid > 0) {
|
||||
do_sysconf(name, key);
|
||||
else
|
||||
} else if (valid < 0) {
|
||||
printf("undefined\n");
|
||||
} else
|
||||
errx(EX_USAGE,
|
||||
"no such configuration parameter `%s'",
|
||||
name);
|
||||
}
|
||||
} else {
|
||||
key = find_pathconf(name);
|
||||
if (key >= 0)
|
||||
do_pathconf(name, key, argv[optind + 1]);
|
||||
else
|
||||
valid = find_pathconf(name, &key);
|
||||
if (valid != 0) {
|
||||
if (valid > 0)
|
||||
do_pathconf(name, key, argv[optind + 1]);
|
||||
else
|
||||
printf("undefined\n");
|
||||
} else
|
||||
errx(EX_USAGE,
|
||||
"no such path configuration parameter `%s'",
|
||||
name);
|
||||
@ -154,3 +183,4 @@ do_pathconf(const char *name, int key, const char *path)
|
||||
else
|
||||
printf("%ld\n", value);
|
||||
}
|
||||
|
||||
|
||||
@ -29,7 +29,10 @@
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
int find_confstr(const char *name);
|
||||
int find_sysconf(const char *name);
|
||||
int find_pathconf(const char *name);
|
||||
#include <stdint.h>
|
||||
|
||||
int find_confstr(const char *name, int *key);
|
||||
int find_limit(const char *name, intmax_t *value);
|
||||
int find_pathconf(const char *name, int *key);
|
||||
int find_progenv(const char *name, const char **alt_path);
|
||||
int find_sysconf(const char *name, int *key);
|
||||
|
||||
118
usr.bin/getconf/limits.gperf
Normal file
118
usr.bin/getconf/limits.gperf
Normal file
@ -0,0 +1,118 @@
|
||||
%{
|
||||
/*
|
||||
* Copyright is disclaimed as to the contents of this file.
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
#include <sys/types.h>
|
||||
|
||||
#include <string.h>
|
||||
#include <limits.h>
|
||||
|
||||
#include "getconf.h"
|
||||
|
||||
/*
|
||||
* Override gperf's built-in external scope.
|
||||
*/
|
||||
static const struct map *in_word_set(const char *str, unsigned int len);
|
||||
|
||||
%}
|
||||
struct map { const char *name; intmax_t value; int valid; };
|
||||
%%
|
||||
_POSIX_CLOCKRES_MIN, _POSIX_CLOCKRES_MIN
|
||||
_POSIX_AIO_LISTIO_MAX, _POSIX_AIO_LISTIO_MAX
|
||||
_POSIX_AIO_MAX, _POSIX_AIO_MAX
|
||||
_POSIX_ARG_MAX, _POSIX_ARG_MAX
|
||||
_POSIX_CHILD_MAX, _POSIX_CHILD_MAX
|
||||
_POSIX_DELAYTIMER_MAX, _POSIX_DELAYTIMER_MAX
|
||||
_POSIX_HOST_NAME_MAX, _POSIX_HOST_NAME_MAX
|
||||
_POSIX_LINK_MAX, _POSIX_LINK_MAX
|
||||
_POSIX_LOGIN_NAME_MAX, _POSIX_LOGIN_NAME_MAX
|
||||
_POSIX_MAX_CANON, _POSIX_MAX_CANON
|
||||
_POSIX_MAX_INPUT, _POSIX_MAX_INPUT
|
||||
_POSIX_MQ_OPEN_MAX, _POSIX_MQ_OPEN_MAX
|
||||
_POSIX_MQ_PRIO_MAX, _POSIX_MQ_PRIO_MAX
|
||||
_POSIX_NAME_MAX, _POSIX_NAME_MAX
|
||||
_POSIX_NGROUPS_MAX, _POSIX_NGROUPS_MAX
|
||||
_POSIX_OPEN_MAX, _POSIX_OPEN_MAX
|
||||
_POSIX_PATH_MAX, _POSIX_PATH_MAX
|
||||
_POSIX_PIPE_BUF, __POSIX_PIPE_BUF
|
||||
_POSIX_RE_DUP_MAX, _POSIX_RE_DUP_MAX
|
||||
_POSIX_RTSIG_MAX, _POSIX_RTSIG_MAX
|
||||
_POSIX_SEM_NSEMS_MAX, _POSIX_SEM_NSEMS_MAX
|
||||
_POSIX_SEM_VALUE_MAX, _POSIX_SEM_VALUE_MAX
|
||||
_POSIX_SIGQUEUE_MAX, _POSIX_SIGQUEUE_MAX
|
||||
_POSIX_SSIZE_MAX, _POSIX_SSIZE_MAX
|
||||
_POSIX_STREAM_MAX, _POSIX_STREAM_MAX
|
||||
_POSIX_SS_REPL_MAX, _POSIX_SS_REPL_MAX
|
||||
_POSIX_SYMLINK_MAX, _POSIX_SYMLINK_MAX
|
||||
_POSIX_SYMLOOP_MAX, _POSIX_SYMLOOP_MAX
|
||||
_POSIX_THREAD_DESTRUCTOR_ITERATIONS, _POSIX_THREAD_DESTRUCTOR_ITERATIONS
|
||||
_POSIX_THREAD_KEYS_MAX, _POSIX_THREAD_KEYS_MAX
|
||||
_POSIX_THREAD_THREADS_MAX, _POSIX_THREAD_THREADS_MAX
|
||||
_POSIX_TIMER_MAX, _POSIX_TIMER_MAX
|
||||
_POSIX_TRACE_EVENT_NAME_MAX, _POSIX_TRACE_EVENT_NAME_MAX
|
||||
_POSIX_TRACE_NAME_MAX, _POSIX_TRACE_NAME_MAX
|
||||
_POSIX_TRACE_SYS_MAX, _POSIX_TRACE_SYS_MAX
|
||||
_POSIX_TRACE_USER_EVENT_MAX, _POSIX_TRACE_USER_EVENT_MAX
|
||||
_POSIX_TTY_NAME_MAX, _POSIX_TTY_NAME_MAX
|
||||
_POSIX_TZNAME_MAX, _POSIX_TZNAME_MAX
|
||||
_POSIX2_BC_BASE_MAX, _POSIX2_BC_BASE_MAX
|
||||
_POSIX2_BC_DIM_MAX, _POSIX2_BC_DIM_MAX
|
||||
_POSIX2_BC_SCALE_MAX, _POSIX2_BC_SCALE_MAX
|
||||
_POSIX2_BC_STRING_MAX, _POSIX2_BC_STRING_MAX
|
||||
_POSIX2_CHARCLASS_NAME_MAX, _POSIX2_CHARCLASS_NAME_MAX
|
||||
_POSIX2_COLL_WEIGHTS_MAX, _POSIX2_COLL_WEIGHTS_MAX
|
||||
_POSIX2_EXPR_NEXT_MAX, _POSIX2_EXPR_NEST_MAX
|
||||
_POSIX2_LINE_MAX, _POSIX2_LINE_MAX
|
||||
_POSIX2_RE_DUP_MAX, _POSIX2_RE_DUP_MAX
|
||||
_XOPEN_IOV_MAX, _XOPEN_IOV_MAX
|
||||
_XOPEN_NAME_MAX, _XOPEN_NAME_MAX
|
||||
_XOPEN_PATH_MAX, _XOPEN_PATH_MAX
|
||||
CHAR_BIT, CHAR_BIT
|
||||
CHAR_MAX, CHAR_MAX
|
||||
CHAR_MIN, CHAR_MIN
|
||||
INT_MAX, INT_MAX
|
||||
INT_MIN, INT_MIN
|
||||
LLONG_MIN, LLONG_MIN
|
||||
LLONG_MAX, LLONG_MAX
|
||||
LONG_BIT, LONG_BIT
|
||||
LONG_MAX, LONG_MAX
|
||||
LONG_MIN, LONG_MIN
|
||||
MB_LEN_MAX, MB_LEN_MAX
|
||||
SCHAR_MAX, SCHAR_MAX
|
||||
SCHAR_MIN, SCHAR_MIN
|
||||
SHRT_MAX, SHRT_MAX
|
||||
SHRT_MIN, SHRT_MIN
|
||||
SSIZE_MAX, SSIZE_MAX
|
||||
UCHAR_MAX, UCHAR_MAX
|
||||
UINT_MAX, UINT_MAX
|
||||
ULLONG_MAX, ULLONG_MAX
|
||||
ULONG_MAX, ULONG_MAX
|
||||
USHRT_MAX, USHRT_MAX
|
||||
WORD_BIT, WORD_BIT
|
||||
CHARCLASS_NAME_MAX, CHARCLASS_NAME_MAX
|
||||
NL_ARGMAX, NL_ARGMAX
|
||||
ML_LANGMAX, NL_LANGMAX
|
||||
NL_MSGMAX, NL_MSGMAX
|
||||
NL_NMAX, NL_NMAX
|
||||
NL_SETMAX, NL_SETMAX
|
||||
NL_TEXTMAX, NL_TEXTMAX
|
||||
NZERO, NZERO
|
||||
%%
|
||||
int
|
||||
find_limit(const char *name, intmax_t *value)
|
||||
{
|
||||
const struct map *rv;
|
||||
|
||||
rv = in_word_set(name, strlen(name));
|
||||
if (rv != NULL) {
|
||||
if (rv->valid) {
|
||||
*value = rv->value;
|
||||
return 1;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
@ -13,21 +13,13 @@
|
||||
|
||||
#include "getconf.h"
|
||||
|
||||
/*
|
||||
* Stuff that isn't defined right now -- we want this file to work
|
||||
* unmodified once it is defined.
|
||||
*/
|
||||
#ifndef _PC_FILESIZEBITS
|
||||
#define _PC_FILESIZEBITS -1
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Override gperf's built-in external scope.
|
||||
*/
|
||||
static const struct map *in_word_set(const char *str, unsigned int len);
|
||||
|
||||
%}
|
||||
struct map { char *name; int key; };
|
||||
struct map { char *name; int key; int valid; };
|
||||
%%
|
||||
FILESIZEBITS, _PC_FILESIZEBITS
|
||||
LINK_MAX, _PC_LINK_MAX
|
||||
@ -36,6 +28,11 @@ MAX_INPUT, _PC_MAX_INPUT
|
||||
NAME_MAX, _PC_NAME_MAX
|
||||
PATH_MAX, _PC_PATH_MAX
|
||||
PIPE_BUF, _PC_PIPE_BUF
|
||||
POSIX_ALLOC_SIZE_MIN, _PC_ALLOC_SIZE_MIN
|
||||
POSIX_REC_INCR_XFER_SIZE, _PC_REC_INCR_XFER_SIZE
|
||||
POSIX_REC_MAX_XFER_SIZE, _PC_REC_MAX_XFER_SIZE
|
||||
POSIX_REC_MIN_XFER_SIZE, _PC_REC_MIN_XFER_SIZE
|
||||
POSIX_REC_XFER_ALIGN, _PC_REC_XFER_ALIGN
|
||||
_POSIX_CHOWN_RESTRICTED, _PC_CHOWN_RESTRICTED
|
||||
_POSIX_NO_TRUNC, _PC_NO_TRUNC
|
||||
_POSIX_VDISABLE, _PC_VDISABLE
|
||||
@ -44,13 +41,17 @@ _POSIX_PRIO_IO, _PC_PRIO_IO
|
||||
_POSIX_SYNC_IO, _PC_SYNC_IO
|
||||
%%
|
||||
int
|
||||
find_pathconf(const char *name)
|
||||
find_pathconf(const char *name, int *key)
|
||||
{
|
||||
const struct map *rv;
|
||||
|
||||
rv = in_word_set(name, strlen(name));
|
||||
if (rv != 0)
|
||||
return rv->key;
|
||||
else
|
||||
if (rv != NULL) {
|
||||
if (rv->valid) {
|
||||
*key = rv->key;
|
||||
return 1;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
67
usr.bin/getconf/progenv.gperf
Normal file
67
usr.bin/getconf/progenv.gperf
Normal file
@ -0,0 +1,67 @@
|
||||
%{
|
||||
/*
|
||||
* Copyright is disclaimed as to the contents of this file.
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
#include <sys/types.h>
|
||||
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include "getconf.h"
|
||||
|
||||
/*
|
||||
* Override gperf's built-in external scope.
|
||||
*/
|
||||
static const struct map *in_word_set(const char *str, unsigned int len);
|
||||
|
||||
/*
|
||||
* The Standard seems a bit ambiguous over whether the POSIX_V6_*
|
||||
* are specified with or without a leading underscore, so we just
|
||||
* use both.
|
||||
*/
|
||||
/*
|
||||
* The alt_path member gives the path containing another `getconf'
|
||||
* executable which was compiled using the specified programming
|
||||
* environment. If it is NULL, the current executable is good enough.
|
||||
* If we ever support multiple environments, this table will need to
|
||||
* be updated. (We cheat here and define the supported environments
|
||||
* statically.)
|
||||
*/
|
||||
#if defined(__alpha__) || defined(__sparc64__)
|
||||
#define have_LP64_OFF64 NULL
|
||||
#endif
|
||||
|
||||
#if defined(__i386__) || defined(__powerpc__)
|
||||
#define have_ILP32_OFFBIG NULL
|
||||
#endif
|
||||
|
||||
%}
|
||||
struct map { const char *name; const char *alt_path; int valid; };
|
||||
%%
|
||||
POSIX_V6_ILP32_OFF32, notdef
|
||||
POSIX_V6_ILP32_OFFBIG, have_ILP32_OFFBIG
|
||||
POSIX_V6_LP64_OFF64, have_LP64_OFF64
|
||||
POSIX_V6_LPBIG_OFFBIG, notdef
|
||||
_POSIX_V6_ILP32_OFF32, notdef
|
||||
_POSIX_V6_ILP32_OFFBIG, have_ILP32_OFFBIG
|
||||
_POSIX_V6_LP64_OFF64, have_LP64_OFF64
|
||||
_POSIX_V6_LPBIG_OFFBIG, notdef
|
||||
%%
|
||||
int
|
||||
find_progenv(const char *name, const char **alt_path)
|
||||
{
|
||||
const struct map *rv;
|
||||
|
||||
rv = in_word_set(name, strlen(name));
|
||||
if (rv != NULL) {
|
||||
if (rv->valid) {
|
||||
*alt_path = rv->alt_path;
|
||||
return 1;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
@ -13,114 +13,13 @@
|
||||
|
||||
#include "getconf.h"
|
||||
|
||||
/*
|
||||
* Stuff that isn't defined right now -- we want this file to work
|
||||
* unmodified once it is defined.
|
||||
*/
|
||||
#ifndef _SC_ATEXIT_MAX
|
||||
#define _SC_ATEXIT_MAX -1
|
||||
#endif
|
||||
#ifndef _SC_TTY_NAME_MAX
|
||||
#define _SC_TTY_NAME_MAX -1
|
||||
#endif
|
||||
#ifndef _SC_MQ_PRIO_MAX
|
||||
#define _SC_MQ_PRIO_MAX -1
|
||||
#endif
|
||||
#ifndef _SC_IOV_MAX
|
||||
#define _SC_IOV_MAX -1
|
||||
#endif
|
||||
#ifndef _SC_XOPEN_REALTIME
|
||||
#define _SC_XOPEN_REALTIME -1
|
||||
#endif
|
||||
#ifndef _SC_XOPEN_LEGACY
|
||||
#define _SC_XOPEN_LEGACY -1
|
||||
#endif
|
||||
#ifndef _SC_XCU_VERSION
|
||||
#define _SC_XCU_VERSION -1
|
||||
#endif
|
||||
#ifndef _SC_PASS_MAX
|
||||
#define _SC_PASS_MAX -1
|
||||
#endif
|
||||
#ifndef _SC_XOPEN_REALTIME_THREADS
|
||||
#define _SC_XOPEN_REALTIME_THREADS -1
|
||||
#endif
|
||||
#ifndef _SC_LOGIN_NAME_MAX
|
||||
#define _SC_LOGIN_NAME_MAX -1
|
||||
#endif
|
||||
#ifndef _SC_XBS5_LP64_OFF64
|
||||
#define _SC_XBS5_LP64_OFF64 -1
|
||||
#endif
|
||||
#ifndef _SC_XOPEN_SHM
|
||||
#define _SC_XOPEN_SHM -1
|
||||
#endif
|
||||
#ifndef _SC_XOPEN_CRYPT
|
||||
#define _SC_XOPEN_CRYPT -1
|
||||
#endif
|
||||
#ifndef _SC_XOPEN_UNIX
|
||||
#define _SC_XOPEN_UNIX -1
|
||||
#endif
|
||||
#ifndef _SC_XOPEN_VERSION
|
||||
#define _SC_XOPEN_VERSION -1
|
||||
#endif
|
||||
#ifndef _SC_THREAD_DESTRUCTOR_ITERATIONS
|
||||
#define _SC_THREAD_DESTRUCTOR_ITERATIONS -1
|
||||
#endif
|
||||
#ifndef _SC_THREAD_KEYS_MAX
|
||||
#define _SC_THREAD_KEYS_MAX -1
|
||||
#endif
|
||||
#ifndef _SC_2_C_VERSION
|
||||
#define _SC_2_C_VERSION -1
|
||||
#endif
|
||||
#ifndef _SC_XBS5_LPBIG_OFFBIG
|
||||
#define _SC_XBS5_LPBIG_OFFBIG -1
|
||||
#endif
|
||||
#ifndef _SC_THREAD_THREADS_MAX
|
||||
#define _SC_THREAD_THREADS_MAX -1
|
||||
#endif
|
||||
#ifndef _SC_XBS5_ILP32_OFF32
|
||||
#define _SC_XBS5_ILP32_OFF32 -1
|
||||
#endif
|
||||
#ifndef _SC_XBS5_ILP32_OFFBIG
|
||||
#define _SC_XBS5_ILP32_OFFBIG -1
|
||||
#endif
|
||||
#ifndef _SC_THREAD_STACK_MIN
|
||||
#define _SC_THREAD_STACK_MIN -1
|
||||
#endif
|
||||
#ifndef _SC_XOPEN_ENH_I18N
|
||||
#define _SC_XOPEN_ENH_I18N -1
|
||||
#endif
|
||||
#ifndef _SC_THREAD_ATTR_STACKSIZE
|
||||
#define _SC_THREAD_ATTR_STACKSIZE -1
|
||||
#endif
|
||||
#ifndef _SC_THREAD_PRIORITY_SCHEDULING
|
||||
#define _SC_THREAD_PRIORITY_SCHEDULING -1
|
||||
#endif
|
||||
#ifndef _SC_THREADS
|
||||
#define _SC_THREADS -1
|
||||
#endif
|
||||
#ifndef _SC_THREAD_PROCESS_SHARED
|
||||
#define _SC_THREAD_PROCESS_SHARED -1
|
||||
#endif
|
||||
#ifndef _SC_THREAD_SAFE_FUNCTIONS
|
||||
#define _SC_THREAD_SAFE_FUNCTIONS -1
|
||||
#endif
|
||||
#ifndef _SC_THREAD_PRIO_PROTECT
|
||||
#define _SC_THREAD_PRIO_PROTECT -1
|
||||
#endif
|
||||
#ifndef _SC_THREAD_ATTR_STACKADDR
|
||||
#define _SC_THREAD_ATTR_STACKADDR -1
|
||||
#endif
|
||||
#ifndef _SC_THREAD_PRIO_INHERIT
|
||||
#define _SC_THREAD_PRIO_INHERIT -1
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Override gperf's built-in external scope.
|
||||
*/
|
||||
static const struct map *in_word_set(const char *str, unsigned int len);
|
||||
|
||||
%}
|
||||
struct map { const char *name; int key; };
|
||||
struct map { const char *name; int key; int valid; };
|
||||
%%
|
||||
AIO_LISTIO_MAX, _SC_AIO_LISTIO_MAX
|
||||
AIO_MAX, _SC_AIO_MAX
|
||||
@ -136,12 +35,17 @@ 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
|
||||
@ -170,6 +74,10 @@ _POSIX2_SW_DEV, _SC_2_SW_DEV
|
||||
_POSIX2_UPE, _SC_2_UPE
|
||||
_POSIX2_VERSION, _SC_2_VERSION
|
||||
_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_JOB_CONTROL, _SC_JOB_CONTROL
|
||||
_POSIX_MAPPED_FILES, _SC_MAPPED_FILES
|
||||
@ -177,27 +85,42 @@ _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_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_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_SAFE_FUNCTIONS, _SC_THREAD_SAFE_FUNCTIONS
|
||||
_POSIX_THREAD_SPORADIC_SERVER, _SC_THREAD_SPORADIC_SERVER
|
||||
_POSIX_TIMEOUTS, _SC_TIMEOUTS
|
||||
_POSIX_TRACE, _SC_TRACE
|
||||
_POSIX_TRACE_EVENT_FILTER, _SC_TRACE_EVENT_FILTER
|
||||
_POSIX_TRACE_INHERIT, _SC_TRACE_INHERIT
|
||||
_POSIX_TRACE_LOG, _SC_TRACE_LOG
|
||||
_POSIX_TIMERS, _SC_TIMERS
|
||||
_POSIX_TYPED_MEMORY_OBJECTS, _SC_TYPED_MEMORY_OBJECTS
|
||||
_POSIX_VERSION, _SC_VERSION
|
||||
_XBS5_ILP32_OFF32, _SC_XBS5_ILP32_OFF32
|
||||
_XBS5_ILP32_OFFBIG, _SC_XBS5_ILP32_OFFBIG
|
||||
_XBS5_LP64_OFF64, _SC_XBS5_LP64_OFF64
|
||||
_XBS5_LPBIG_OFFBIG, _SC_XBS5_LPBIG_OFFBIG
|
||||
_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_LP64_OFFBIG, _SC_V6_LP64_OFFBIG
|
||||
_XOPEN_CRYPT, _SC_XOPEN_CRYPT
|
||||
_XOPEN_ENH_I18N, _SC_XOPEN_ENH_I18N
|
||||
_XOPEN_LEGACY, _SC_XOPEN_LEGACY
|
||||
@ -209,13 +132,17 @@ _XOPEN_VERSION, _SC_XOPEN_VERSION
|
||||
_XOPEN_XCU_VERSION, _SC_XCU_VERSION
|
||||
%%
|
||||
int
|
||||
find_sysconf(const char *name)
|
||||
find_sysconf(const char *name, int *key)
|
||||
{
|
||||
const struct map *rv;
|
||||
|
||||
rv = in_word_set(name, strlen(name));
|
||||
if (rv != 0)
|
||||
return rv->key;
|
||||
else
|
||||
if (rv != NULL) {
|
||||
if (rv->valid) {
|
||||
*key = rv->key;
|
||||
return 1;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user