pathconf.gperf   [plain text]


%{
/*
 * Copyright is disclaimed as to the contents of this file.
 *
 * $FreeBSD: src/usr.bin/getconf/pathconf.gperf,v 1.4 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; };
%%
FILESIZEBITS, _PC_FILESIZEBITS
LINK_MAX, _PC_LINK_MAX
MAX_CANON, _PC_MAX_CANON
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
POSIX2_SYMLINKS, _PC_2_SYMLINKS
SYMLINK_MAX, _PC_SYMLINK_MAX
TRUSTEDBSD_ACL_EXTENDED, _PC_ACL_EXTENDED
TRUSTEDBSD_ACL_PATH_MAX, _PC_ACL_PATH_MAX
TRUSTEDBSD_CAP_PRESENT, _PC_CAP_PRESENT
TRUSTEDBSD_INF_PRESENT, _PC_INF_PRESENT
TRUSTEDBSD_MAC_PRESENT, _PC_MAC_PRESENT
_POSIX_ASYNC_IO, _PC_ASYNC_IO
_POSIX_CHOWN_RESTRICTED, _PC_CHOWN_RESTRICTED
_POSIX_NO_TRUNC, _PC_NO_TRUNC
_POSIX_PATH_MAX, _PC_PATH_MAX
_POSIX_PRIO_IO, _PC_PRIO_IO
_POSIX_SYNC_IO, _PC_SYNC_IO
_POSIX_VDISABLE, _PC_VDISABLE
%%
int
find_pathconf(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;
}